1 /* perl.h 2 * 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others 5 * 6 * You may distribute under the terms of either the GNU General Public 7 * License or the Artistic License, as specified in the README file. 8 * 9 */ 10 11 #ifndef H_PERL 12 #define H_PERL 1 13 14 #ifdef PERL_FOR_X2P 15 /* 16 * This file is being used for x2p stuff. 17 * Above symbol is defined via -D in 'x2p/Makefile.SH' 18 * Decouple x2p stuff from some of perls more extreme eccentricities. 19 */ 20 #undef MULTIPLICITY 21 #undef USE_STDIO 22 #define USE_STDIO 23 #endif /* PERL_FOR_X2P */ 24 25 #ifdef PERL_MICRO 26 # include "uconfig.h" 27 #else 28 # include "config.h" 29 #endif 30 31 /* this is used for functions which take a depth trailing 32 * argument under debugging */ 33 #ifdef DEBUGGING 34 #define _pDEPTH ,U32 depth 35 #define _aDEPTH ,depth 36 #else 37 #define _pDEPTH 38 #define _aDEPTH 39 #endif 40 41 /* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined 42 * because the __STDC_VERSION__ became a thing only with C90. Therefore, 43 * with gcc, HAS_C99 will never become true as long as we use -std=c89. 44 45 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true, 46 * all the C99 features are there and are correct. */ 47 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ 48 defined(_STDC_C99) || defined(__c99) 49 # define HAS_C99 1 50 #endif 51 52 /* See L<perlguts/"The Perl API"> for detailed notes on 53 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */ 54 55 /* XXX NOTE that from here --> to <-- the same logic is 56 * repeated in makedef.pl, so be certain to update 57 * both places when editing. */ 58 59 #ifdef USE_ITHREADS 60 # if !defined(MULTIPLICITY) 61 # define MULTIPLICITY 62 # endif 63 #endif 64 65 #ifdef PERL_GLOBAL_STRUCT_PRIVATE 66 # ifndef PERL_GLOBAL_STRUCT 67 # define PERL_GLOBAL_STRUCT 68 # endif 69 #endif 70 71 #ifdef PERL_GLOBAL_STRUCT 72 # ifndef MULTIPLICITY 73 # define MULTIPLICITY 74 # endif 75 #endif 76 77 #ifdef MULTIPLICITY 78 # ifndef PERL_IMPLICIT_CONTEXT 79 # define PERL_IMPLICIT_CONTEXT 80 # endif 81 #endif 82 83 /* undef WIN32 when building on Cygwin (for libwin32) - gph */ 84 #ifdef __CYGWIN__ 85 # undef WIN32 86 # undef _WIN32 87 #endif 88 89 #if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS)) 90 # ifndef SYMBIAN 91 # define SYMBIAN 92 # endif 93 #endif 94 95 #ifdef __SYMBIAN32__ 96 # include "symbian/symbian_proto.h" 97 #endif 98 99 /* Any stack-challenged places. The limit varies (and often 100 * is configurable), but using more than a kilobyte of stack 101 * is usually dubious in these systems. */ 102 #if defined(__SYMBIAN32__) 103 /* Symbian: need to work around the SDK features. * 104 * On WINS: MS VC5 generates calls to _chkstk, * 105 * if a "large" stack frame is allocated. * 106 * gcc on MARM does not generate calls like these. */ 107 # define USE_HEAP_INSTEAD_OF_STACK 108 #endif 109 110 /* Use the reentrant APIs like localtime_r and getpwent_r */ 111 /* Win32 has naturally threadsafe libraries, no need to use any _r variants. 112 * XXX KEEP makedef.pl copy of this code in sync */ 113 #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) 114 # define USE_REENTRANT_API 115 #endif 116 117 /* <--- here ends the logic shared by perl.h and makedef.pl */ 118 119 #undef START_EXTERN_C 120 #undef END_EXTERN_C 121 #undef EXTERN_C 122 #ifdef __cplusplus 123 # define START_EXTERN_C extern "C" { 124 # define END_EXTERN_C } 125 # define EXTERN_C extern "C" 126 #else 127 # define START_EXTERN_C 128 # define END_EXTERN_C 129 # define EXTERN_C extern 130 #endif 131 132 /* Fallback definitions in case we don't have definitions from config.h. 133 This should only matter for systems that don't use Configure and 134 haven't been modified to define PERL_STATIC_INLINE yet. 135 */ 136 #if !defined(PERL_STATIC_INLINE) 137 # ifdef HAS_STATIC_INLINE 138 # define PERL_STATIC_INLINE static inline 139 # else 140 # define PERL_STATIC_INLINE static 141 # endif 142 #endif 143 144 #if defined(PERL_GLOBAL_STRUCT) && !defined(PERL_GET_VARS) 145 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 146 EXTERN_C struct perl_vars* Perl_GetVarsPrivate(); 147 # define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */ 148 # else 149 # define PERL_GET_VARS() PL_VarsPtr 150 # endif 151 #endif 152 153 /* this used to be off by default, now its on, see perlio.h */ 154 #define PERLIO_FUNCS_CONST 155 156 #define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL 157 158 #ifdef PERL_GLOBAL_STRUCT 159 # define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS() 160 #else 161 # define dVAR dNOOP 162 #endif 163 164 #ifdef PERL_IMPLICIT_CONTEXT 165 # ifndef MULTIPLICITY 166 # define MULTIPLICITY 167 # endif 168 # define tTHX PerlInterpreter* 169 # define pTHX tTHX my_perl PERL_UNUSED_DECL 170 # define aTHX my_perl 171 # define aTHXa(a) aTHX = (tTHX)a 172 # ifdef PERL_GLOBAL_STRUCT 173 # define dTHXa(a) dVAR; pTHX = (tTHX)a 174 # else 175 # define dTHXa(a) pTHX = (tTHX)a 176 # endif 177 # ifdef PERL_GLOBAL_STRUCT 178 # define dTHX dVAR; pTHX = PERL_GET_THX 179 # else 180 # define dTHX pTHX = PERL_GET_THX 181 # endif 182 # define pTHX_ pTHX, 183 # define aTHX_ aTHX, 184 # define pTHX_1 2 185 # define pTHX_2 3 186 # define pTHX_3 4 187 # define pTHX_4 5 188 # define pTHX_5 6 189 # define pTHX_6 7 190 # define pTHX_7 8 191 # define pTHX_8 9 192 # define pTHX_9 10 193 # define pTHX_12 13 194 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL) 195 # define PERL_TRACK_MEMPOOL 196 # endif 197 #else 198 # undef PERL_TRACK_MEMPOOL 199 #endif 200 201 #ifdef DEBUGGING 202 # define dTHX_DEBUGGING dTHX 203 #else 204 # define dTHX_DEBUGGING dNOOP 205 #endif 206 207 #define STATIC static 208 209 #ifndef PERL_CORE 210 /* Do not use these macros. They were part of PERL_OBJECT, which was an 211 * implementation of multiplicity using C++ objects. They have been left 212 * here solely for the sake of XS code which has incorrectly 213 * cargo-culted them. 214 */ 215 #define CPERLscope(x) x 216 #define CPERLarg void 217 #define CPERLarg_ 218 #define _CPERLarg 219 #define PERL_OBJECT_THIS 220 #define _PERL_OBJECT_THIS 221 #define PERL_OBJECT_THIS_ 222 #define CALL_FPTR(fptr) (*fptr) 223 #define MEMBER_TO_FPTR(name) name 224 #endif /* !PERL_CORE */ 225 226 #define CALLRUNOPS PL_runops 227 228 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags)) 229 230 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags) 231 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \ 232 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \ 233 (strbeg),(minend),(sv),(data),(flags)) 234 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \ 235 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \ 236 (strend),(flags),(data)) 237 #define CALLREG_INTUIT_STRING(prog) \ 238 RX_ENGINE(prog)->checkstr(aTHX_ (prog)) 239 240 #define CALLREGFREE(prog) \ 241 Perl_pregfree(aTHX_ (prog)) 242 243 #define CALLREGFREE_PVT(prog) \ 244 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog)) 245 246 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \ 247 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv)) 248 249 #define CALLREG_NUMBUF_STORE(rx,paren,value) \ 250 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value)) 251 252 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \ 253 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren)) 254 255 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \ 256 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH)) 257 258 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \ 259 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE)) 260 261 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \ 262 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE)) 263 264 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \ 265 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR)) 266 267 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \ 268 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS)) 269 270 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \ 271 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY)) 272 273 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \ 274 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY)) 275 276 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \ 277 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR)) 278 279 #define CALLREG_NAMED_BUFF_COUNT(rx) \ 280 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT) 281 282 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \ 283 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags) 284 285 #define CALLREG_PACKAGE(rx) \ 286 RX_ENGINE(rx)->qr_package(aTHX_ (rx)) 287 288 #if defined(USE_ITHREADS) 289 #define CALLREGDUPE(prog,param) \ 290 Perl_re_dup(aTHX_ (prog),(param)) 291 292 #define CALLREGDUPE_PVT(prog,param) \ 293 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \ 294 : (REGEXP *)NULL) 295 #endif 296 297 /* some compilers impersonate gcc */ 298 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER) 299 # define PERL_IS_GCC 1 300 #endif 301 302 /* In case Configure was not used (we are using a "canned config" 303 * such as Win32, or a cross-compilation setup, for example) try going 304 * by the gcc major and minor versions. One useful URL is 305 * http://www.ohse.de/uwe/articles/gcc-attributes.html, 306 * but contrary to this information warn_unused_result seems 307 * not to be in gcc 3.3.5, at least. --jhi 308 * Also, when building extensions with an installed perl, this allows 309 * the user to upgrade gcc and get the right attributes, rather than 310 * relying on the list generated at Configure time. --AD 311 * Set these up now otherwise we get confused when some of the <*thread.h> 312 * includes below indirectly pull in <perlio.h> (which needs to know if we 313 * have HASATTRIBUTE_FORMAT). 314 */ 315 316 #ifndef PERL_MICRO 317 #if defined __GNUC__ && !defined(__INTEL_COMPILER) 318 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */ 319 # define HASATTRIBUTE_DEPRECATED 320 # endif 321 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */ 322 # define HASATTRIBUTE_FORMAT 323 # if defined __MINGW32__ 324 # define PRINTF_FORMAT_NULL_OK 325 # endif 326 # endif 327 # if __GNUC__ >= 3 /* 3.0 -> */ 328 # define HASATTRIBUTE_MALLOC 329 # endif 330 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */ 331 # define HASATTRIBUTE_NONNULL 332 # endif 333 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */ 334 # define HASATTRIBUTE_NORETURN 335 # endif 336 # if __GNUC__ >= 3 /* gcc 3.0 -> */ 337 # define HASATTRIBUTE_PURE 338 # endif 339 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */ 340 # define HASATTRIBUTE_UNUSED 341 # endif 342 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus) 343 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */ 344 # endif 345 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */ 346 # define HASATTRIBUTE_WARN_UNUSED_RESULT 347 # endif 348 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */ 349 # if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */ 350 # define HASATTRIBUTE_ALWAYS_INLINE 351 # endif 352 #endif 353 #endif /* #ifndef PERL_MICRO */ 354 355 #ifdef HASATTRIBUTE_DEPRECATED 356 # define __attribute__deprecated__ __attribute__((deprecated)) 357 #endif 358 #ifdef HASATTRIBUTE_FORMAT 359 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z))) 360 #endif 361 #ifdef HASATTRIBUTE_MALLOC 362 # define __attribute__malloc__ __attribute__((__malloc__)) 363 #endif 364 #ifdef HASATTRIBUTE_NONNULL 365 # define __attribute__nonnull__(a) __attribute__((nonnull(a))) 366 #endif 367 #ifdef HASATTRIBUTE_NORETURN 368 # define __attribute__noreturn__ __attribute__((noreturn)) 369 #endif 370 #ifdef HASATTRIBUTE_PURE 371 # define __attribute__pure__ __attribute__((pure)) 372 #endif 373 #ifdef HASATTRIBUTE_UNUSED 374 # define __attribute__unused__ __attribute__((unused)) 375 #endif 376 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT 377 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result)) 378 #endif 379 #ifdef HASATTRIBUTE_ALWAYS_INLINE 380 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */ 381 # if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4) 382 # define __attribute__always_inline__ __attribute__((always_inline)) 383 # endif 384 #endif 385 386 /* If we haven't defined the attributes yet, define them to blank. */ 387 #ifndef __attribute__deprecated__ 388 # define __attribute__deprecated__ 389 #endif 390 #ifndef __attribute__format__ 391 # define __attribute__format__(x,y,z) 392 #endif 393 #ifndef __attribute__malloc__ 394 # define __attribute__malloc__ 395 #endif 396 #ifndef __attribute__nonnull__ 397 # define __attribute__nonnull__(a) 398 #endif 399 #ifndef __attribute__noreturn__ 400 # define __attribute__noreturn__ 401 #endif 402 #ifndef __attribute__pure__ 403 # define __attribute__pure__ 404 #endif 405 #ifndef __attribute__unused__ 406 # define __attribute__unused__ 407 #endif 408 #ifndef __attribute__warn_unused_result__ 409 # define __attribute__warn_unused_result__ 410 #endif 411 #ifndef __attribute__always_inline__ 412 # define __attribute__always_inline__ 413 #endif 414 415 /* Some OS warn on NULL format to printf */ 416 #ifdef PRINTF_FORMAT_NULL_OK 417 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z) 418 #else 419 # define __attribute__format__null_ok__(x,y,z) 420 #endif 421 422 /* 423 * Because of backward compatibility reasons the PERL_UNUSED_DECL 424 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh. 425 * 426 * Note that there are C compilers such as MetroWerks CodeWarrior 427 * which do not have an "inlined" way (like the gcc __attribute__) of 428 * marking unused variables (they need e.g. a #pragma) and therefore 429 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even 430 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above). 431 * 432 */ 433 434 #ifndef PERL_UNUSED_DECL 435 # define PERL_UNUSED_DECL __attribute__unused__ 436 #endif 437 438 /* gcc -Wall: 439 * for silencing unused variables that are actually used most of the time, 440 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs, 441 * or variables/arguments that are used only in certain configurations. 442 */ 443 #ifndef PERL_UNUSED_ARG 444 # define PERL_UNUSED_ARG(x) ((void)sizeof(x)) 445 #endif 446 #ifndef PERL_UNUSED_VAR 447 # define PERL_UNUSED_VAR(x) ((void)sizeof(x)) 448 #endif 449 450 #if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT) 451 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl) 452 #else 453 # define PERL_UNUSED_CONTEXT 454 #endif 455 456 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions, 457 * g++ allows them but seems to have problems with them 458 * (insane errors ensue). 459 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2). 460 */ 461 #if defined(PERL_GCC_PEDANTIC) || \ 462 (defined(__GNUC__) && defined(__cplusplus) && \ 463 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2)))) 464 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN 465 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN 466 # endif 467 #endif 468 469 /* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results 470 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)). 471 * 472 * The main reason for this is that the combination of gcc -Wunused-result 473 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot 474 * be silenced with casting to void. This causes trouble when the system 475 * header files use the attribute. 476 * 477 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning 478 * is there for a good reason: you might lose success/failure information, 479 * or leak resources, or changes in resources. 480 * 481 * But sometimes you just want to ignore the return value, e.g. on 482 * codepaths soon ending up in abort, or in "best effort" attempts, 483 * or in situations where there is no good way to handle failures. 484 * 485 * Sometimes PERL_UNUSED_RESULT might not be the most natural way: 486 * another possibility is that you can capture the return value 487 * and use PERL_UNUSED_VAR on that. 488 * 489 * The __typeof__() is used instead of typeof() since typeof() is not 490 * available under strict C89, and because of compilers masquerading 491 * as gcc (clang and icc), we want exactly the gcc extension 492 * __typeof__ and nothing else. 493 */ 494 #ifndef PERL_UNUSED_RESULT 495 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT) 496 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END 497 # else 498 # define PERL_UNUSED_RESULT(v) ((void)(v)) 499 # endif 500 #endif 501 502 #if defined(_MSC_VER) 503 /* XXX older MSVC versions have a smallish macro buffer */ 504 #define PERL_SMALL_MACRO_BUFFER 505 #endif 506 507 /* on gcc (and clang), specify that a warning should be temporarily 508 * ignored; e.g. 509 * 510 * GCC_DIAG_IGNORE_DECL(-Wmultichar); 511 * char b = 'ab'; 512 * GCC_DIAG_RESTORE_DECL; 513 * 514 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html 515 * 516 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011; 517 * clang only pretends to be GCC 4.2, but still supports push/pop. 518 * 519 * Note on usage: all macros must be used at a place where a declaration 520 * or statement can occur, i.e., not in the middle of an expression. 521 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but 522 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and 523 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave 524 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT() 525 * and *_DIAG_RESTORE_STMT must be used with a following semicolon, 526 * and behave syntactically as statements (like NOOP). 527 * 528 */ 529 530 #if defined(__clang__) || defined(__clang) || \ 531 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406) 532 # define GCC_DIAG_PRAGMA(x) _Pragma (#x) 533 /* clang has "clang diagnostic" pragmas, but also understands gcc. */ 534 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \ 535 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x) 536 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop") 537 #else 538 # define GCC_DIAG_IGNORE(w) 539 # define GCC_DIAG_RESTORE 540 #endif 541 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP 542 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP 543 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP 544 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP 545 /* for clang specific pragmas */ 546 #if defined(__clang__) || defined(__clang) 547 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x) 548 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \ 549 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x) 550 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop") 551 #else 552 # define CLANG_DIAG_IGNORE(w) 553 # define CLANG_DIAG_RESTORE 554 #endif 555 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP 556 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP 557 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP 558 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP 559 560 #if defined(_MSC_VER) && (_MSC_VER >= 1300) 561 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \ 562 __pragma(warning(disable : x)) 563 # define MSVC_DIAG_RESTORE __pragma(warning(pop)) 564 #else 565 # define MSVC_DIAG_IGNORE(x) 566 # define MSVC_DIAG_RESTORE 567 #endif 568 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP 569 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP 570 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP 571 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP 572 573 #define NOOP /*EMPTY*/(void)0 574 #define dNOOP struct Perl___notused_struct 575 576 #ifndef pTHX 577 /* Don't bother defining tTHX ; using it outside 578 * code guarded by PERL_IMPLICIT_CONTEXT is an error. 579 */ 580 # define pTHX void 581 # define pTHX_ 582 # define aTHX 583 # define aTHX_ 584 # define aTHXa(a) NOOP 585 # define dTHXa(a) dNOOP 586 # define dTHX dNOOP 587 # define pTHX_1 1 588 # define pTHX_2 2 589 # define pTHX_3 3 590 # define pTHX_4 4 591 # define pTHX_5 5 592 # define pTHX_6 6 593 # define pTHX_7 7 594 # define pTHX_8 8 595 # define pTHX_9 9 596 # define pTHX_12 12 597 #endif 598 599 #ifndef dVAR 600 # define dVAR dNOOP 601 #endif 602 603 /* these are only defined for compatibility; should not be used internally */ 604 #if !defined(pTHXo) && !defined(PERL_CORE) 605 # define pTHXo pTHX 606 # define pTHXo_ pTHX_ 607 # define aTHXo aTHX 608 # define aTHXo_ aTHX_ 609 # define dTHXo dTHX 610 # define dTHXoa(x) dTHXa(x) 611 #endif 612 613 #ifndef pTHXx 614 # define pTHXx PerlInterpreter *my_perl 615 # define pTHXx_ pTHXx, 616 # define aTHXx my_perl 617 # define aTHXx_ aTHXx, 618 # define dTHXx dTHX 619 #endif 620 621 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation) 622 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...). 623 * dTHXs is therefore needed for all functions using PerlIO_foo(). */ 624 #ifdef PERL_IMPLICIT_SYS 625 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 626 # define dTHXs dVAR; dTHX 627 # else 628 # define dTHXs dTHX 629 # endif 630 #else 631 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 632 # define dTHXs dVAR 633 # else 634 # define dTHXs dNOOP 635 # endif 636 #endif 637 638 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus) 639 # ifndef PERL_USE_GCC_BRACE_GROUPS 640 # define PERL_USE_GCC_BRACE_GROUPS 641 # endif 642 #endif 643 644 /* 645 =head1 Miscellaneous Functions 646 647 =for apidoc AmnUu|void|STMT_START 648 649 STMT_START { statements; } STMT_END; 650 651 can be used as a single statement, as in 652 653 if (x) STMT_START { ... } STMT_END; else ... 654 655 These are often used in macro definitions. Note that you can't return a value 656 out of them. 657 658 =for apidoc AmnUhu|void|STMT_END 659 660 =cut 661 662 Trying to select a version that gives no warnings... 663 */ 664 #if !(defined(STMT_START) && defined(STMT_END)) 665 # define STMT_START do 666 # define STMT_END while (0) 667 #endif 668 669 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */ 670 # define BYTEORDER 0x1234 671 #endif 672 673 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90 674 #define ASCIIish 675 #else 676 #undef ASCIIish 677 #endif 678 679 /* 680 * The following contortions are brought to you on behalf of all the 681 * standards, semi-standards, de facto standards, not-so-de-facto standards 682 * of the world, as well as all the other botches anyone ever thought of. 683 * The basic theory is that if we work hard enough here, the rest of the 684 * code can be a lot prettier. Well, so much for theory. Sorry, Henry... 685 */ 686 687 /* define this once if either system, instead of cluttering up the src */ 688 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE) 689 #define DOSISH 1 690 #endif 691 692 /* These exist only for back-compat with XS modules. */ 693 #ifndef PERL_CORE 694 #define VOL volatile 695 #define CAN_PROTOTYPE 696 #define _(args) args 697 #define I_LIMITS 698 #define I_STDARG 699 #define STANDARD_C 700 #endif 701 702 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT, 703 * you get a perl without taint support, but doubtlessly with a lesser 704 * degree of support. Do not do so unless you know exactly what it means 705 * technically, have a good reason to do so, and know exactly how the 706 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered 707 * a potential security risk due to flat out ignoring the security-relevant 708 * taint flags. This being said, a perl without taint support compiled in 709 * has marginal run-time performance benefits. 710 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT. 711 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it 712 * silently ignores -t/-T instead of throwing an exception. 713 * 714 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT 715 * voids your nonexistent warranty! 716 */ 717 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT) 718 # define NO_TAINT_SUPPORT 1 719 #endif 720 721 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related 722 * operations into no-ops for a very modest speed-up. Enable only if you 723 * know what you're doing: tests and CPAN modules' tests are bound to fail. 724 */ 725 #ifdef NO_TAINT_SUPPORT 726 # define TAINT NOOP 727 # define TAINT_NOT NOOP 728 # define TAINT_IF(c) NOOP 729 # define TAINT_ENV() NOOP 730 # define TAINT_PROPER(s) NOOP 731 # define TAINT_set(s) NOOP 732 # define TAINT_get 0 733 # define TAINTING_get 0 734 # define TAINTING_set(s) NOOP 735 # define TAINT_WARN_get 0 736 # define TAINT_WARN_set(s) NOOP 737 #else 738 /* Set to tainted if we are running under tainting mode */ 739 # define TAINT (PL_tainted = PL_tainting) 740 741 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */ 742 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */ 743 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); } 744 /* croak or warn if tainting */ 745 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \ 746 taint_proper(NULL, s); \ 747 } 748 # define TAINT_set(s) (PL_tainted = (s)) 749 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */ 750 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */ 751 # define TAINTING_set(s) (PL_tainting = (s)) 752 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations 753 are fatal 754 TRUE => they're just 755 warnings */ 756 # define TAINT_WARN_set(s) (PL_taint_warn = (s)) 757 #endif 758 759 /* flags used internally only within pp_subst and pp_substcont */ 760 #ifdef PERL_CORE 761 # define SUBST_TAINT_STR 1 /* string tainted */ 762 # define SUBST_TAINT_PAT 2 /* pattern tainted */ 763 # define SUBST_TAINT_REPL 4 /* replacement tainted */ 764 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */ 765 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */ 766 #endif 767 768 /* XXX All process group stuff is handled in pp_sys.c. Should these 769 defines move there? If so, I could simplify this a lot. --AD 9/96. 770 */ 771 /* Process group stuff changed from traditional BSD to POSIX. 772 perlfunc.pod documents the traditional BSD-style syntax, so we'll 773 try to preserve that, if possible. 774 */ 775 #ifdef HAS_SETPGID 776 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp)) 777 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP) 778 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp)) 779 #elif defined(HAS_SETPGRP2) 780 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp)) 781 #endif 782 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP) 783 # define HAS_SETPGRP /* Well, effectively it does . . . */ 784 #endif 785 786 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes 787 our life easier :-) so we'll try it. 788 */ 789 #ifdef HAS_GETPGID 790 # define BSD_GETPGRP(pid) getpgid((pid)) 791 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP) 792 # define BSD_GETPGRP(pid) getpgrp((pid)) 793 #elif defined(HAS_GETPGRP2) 794 # define BSD_GETPGRP(pid) getpgrp2((pid)) 795 #endif 796 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP) 797 # define HAS_GETPGRP /* Well, effectively it does . . . */ 798 #endif 799 800 /* These are not exact synonyms, since setpgrp() and getpgrp() may 801 have different behaviors, but perl.h used to define USE_BSDPGRP 802 (prior to 5.003_05) so some extension might depend on it. 803 */ 804 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP) 805 # ifndef USE_BSDPGRP 806 # define USE_BSDPGRP 807 # endif 808 #endif 809 810 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that 811 pthread.h must be included before all other header files. 812 */ 813 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD) 814 # include <pthread.h> 815 #endif 816 817 #include <sys/types.h> 818 819 /* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h 820 which is included from stdarg.h. Bad definition not present in SD 2008 821 SDK headers. wince.h is not yet included, so we cant fix this from there 822 since by then MB_CUR_MAX will be defined from stdlib.h. 823 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here 824 since cewchar.h can't be included this early */ 825 #if defined(UNDER_CE) && (_MSC_VER < 1300) 826 # define MB_CUR_MAX 1uL 827 #endif 828 829 # ifdef I_WCHAR 830 # include <wchar.h> 831 # endif 832 833 # include <stdarg.h> 834 835 #ifdef I_STDINT 836 # include <stdint.h> 837 #endif 838 839 #include <ctype.h> 840 #include <float.h> 841 #include <limits.h> 842 843 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */ 844 #undef METHOD 845 #endif 846 847 #ifdef PERL_MICRO 848 # define NO_LOCALE 849 #endif 850 851 #ifdef I_LOCALE 852 # include <locale.h> 853 #endif 854 855 #ifdef I_XLOCALE 856 # include <xlocale.h> 857 #endif 858 859 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008 860 * functions are available, or 2) just the setlocale() function. This logic is 861 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in 862 * sync. */ 863 #if ! defined(NO_LOCALE) 864 865 # if ! defined(NO_POSIX_2008_LOCALE) \ 866 && defined(HAS_NEWLOCALE) \ 867 && defined(HAS_USELOCALE) \ 868 && defined(HAS_DUPLOCALE) \ 869 && defined(HAS_FREELOCALE) \ 870 && defined(LC_ALL_MASK) 871 872 /* For simplicity, the code is written to assume that any platform advanced 873 * enough to have the Posix 2008 locale functions has LC_ALL. The final 874 * test above makes sure that assumption is valid */ 875 876 # define HAS_POSIX_2008_LOCALE 877 # define USE_LOCALE 878 # elif defined(HAS_SETLOCALE) 879 # define USE_LOCALE 880 # endif 881 #endif 882 883 #ifdef USE_LOCALE 884 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this 885 #define */ 886 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \ 887 && defined(HAS_STRXFRM) 888 # define USE_LOCALE_COLLATE 889 # endif 890 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE) 891 # define USE_LOCALE_CTYPE 892 # endif 893 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC) 894 # define USE_LOCALE_NUMERIC 895 # endif 896 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES) 897 # define USE_LOCALE_MESSAGES 898 # endif 899 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY) 900 # define USE_LOCALE_MONETARY 901 # endif 902 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME) 903 # define USE_LOCALE_TIME 904 # endif 905 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS) 906 # define USE_LOCALE_ADDRESS 907 # endif 908 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION) 909 # define USE_LOCALE_IDENTIFICATION 910 # endif 911 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT) 912 # define USE_LOCALE_MEASUREMENT 913 # endif 914 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER) 915 # define USE_LOCALE_PAPER 916 # endif 917 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE) 918 # define USE_LOCALE_TELEPHONE 919 # endif 920 921 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and 922 * changes here MUST also be made there */ 923 924 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE) 925 # define USE_POSIX_2008_LOCALE 926 # ifndef USE_THREAD_SAFE_LOCALE 927 # define USE_THREAD_SAFE_LOCALE 928 # endif 929 /* If compiled with 930 * -DUSE_THREAD_SAFE_LOCALE, will do so even 931 * on unthreaded builds */ 932 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \ 933 && ( defined(HAS_POSIX_2008_LOCALE) \ 934 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \ 935 && ! defined(NO_THREAD_SAFE_LOCALE) 936 # ifndef USE_THREAD_SAFE_LOCALE 937 # define USE_THREAD_SAFE_LOCALE 938 # endif 939 # ifdef HAS_POSIX_2008_LOCALE 940 # define USE_POSIX_2008_LOCALE 941 # endif 942 # endif 943 #endif 944 945 /* Microsoft documentation reads in the change log for VS 2015: 946 * "The localeconv function declared in locale.h now works correctly when 947 * per-thread locale is enabled. In previous versions of the library, this 948 * function would return the lconv data for the global locale, not the 949 * thread's locale." 950 */ 951 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900 952 # define TS_W32_BROKEN_LOCALECONV 953 #endif 954 955 #include <setjmp.h> 956 957 #ifdef I_SYS_PARAM 958 # ifdef PARAM_NEEDS_TYPES 959 # include <sys/types.h> 960 # endif 961 # include <sys/param.h> 962 #endif 963 964 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month 965 value something like 199306. This may be useful if no more-specific 966 feature test is available. 967 */ 968 #if defined(BSD) 969 # ifndef BSDish 970 # define BSDish 971 # endif 972 #endif 973 974 /* Use all the "standard" definitions */ 975 #include <stdlib.h> 976 977 /* If this causes problems, set i_unistd=undef in the hint file. */ 978 #ifdef I_UNISTD 979 # if defined(__amigaos4__) 980 # ifdef I_NETINET_IN 981 # include <netinet/in.h> 982 # endif 983 # endif 984 # include <unistd.h> 985 # if defined(__amigaos4__) 986 /* Under AmigaOS 4 newlib.library provides an environ. However using 987 * it doesn't give us enough control over inheritance of variables by 988 * subshells etc. so replace with custom version based on abc-shell 989 * code. */ 990 extern char **myenviron; 991 # undef environ 992 # define environ myenviron 993 # endif 994 #endif 995 996 /* for WCOREDUMP */ 997 #ifdef I_SYS_WAIT 998 # include <sys/wait.h> 999 #endif 1000 1001 #ifdef __SYMBIAN32__ 1002 # undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */ 1003 #endif 1004 1005 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO) 1006 EXTERN_C int syscall(int, ...); 1007 #endif 1008 1009 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO) 1010 EXTERN_C int usleep(unsigned int); 1011 #endif 1012 1013 /* macros for correct constant construction. These are in C99 <stdint.h> 1014 * (so they will not be available in strict C89 mode), but they are nice, so 1015 * let's define them if necessary. */ 1016 #ifndef UINT16_C 1017 # if INTSIZE >= 2 1018 # define UINT16_C(x) ((U16_TYPE)x##U) 1019 # else 1020 # define UINT16_C(x) ((U16_TYPE)x##UL) 1021 # endif 1022 #endif 1023 1024 #ifndef UINT32_C 1025 # if INTSIZE >= 4 1026 # define UINT32_C(x) ((U32_TYPE)x##U) 1027 # else 1028 # define UINT32_C(x) ((U32_TYPE)x##UL) 1029 # endif 1030 #endif 1031 1032 #ifdef I_STDINT 1033 typedef intmax_t PERL_INTMAX_T; 1034 typedef uintmax_t PERL_UINTMAX_T; 1035 #endif 1036 1037 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't 1038 * actually mean what it has always been documented to mean (see RT #119753) 1039 * and is explicitly turned off outside of core with dire warnings about 1040 * removing the undef. */ 1041 1042 #if defined(QUADKIND) 1043 # undef PeRl_INT64_C 1044 # undef PeRl_UINT64_C 1045 /* Prefer the native integer types (int and long) over long long 1046 * (which is not C89) and Win32-specific __int64. */ 1047 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8 1048 # define PeRl_INT64_C(c) (c) 1049 # define PeRl_UINT64_C(c) CAT2(c,U) 1050 # endif 1051 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8 1052 # define PeRl_INT64_C(c) CAT2(c,L) 1053 # define PeRl_UINT64_C(c) CAT2(c,UL) 1054 # endif 1055 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG) 1056 # define PeRl_INT64_C(c) CAT2(c,LL) 1057 # define PeRl_UINT64_C(c) CAT2(c,ULL) 1058 # endif 1059 # if QUADKIND == QUAD_IS___INT64 1060 # define PeRl_INT64_C(c) CAT2(c,I64) 1061 # define PeRl_UINT64_C(c) CAT2(c,UI64) 1062 # endif 1063 # ifndef PeRl_INT64_C 1064 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */ 1065 # define PeRl_UINT64_C(c) ((U64TYPE)(c)) 1066 # endif 1067 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will 1068 * not fly with C89-pedantic gcc, so let's undefine them first so that 1069 * we can redefine them with our native integer preferring versions. */ 1070 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC) 1071 # undef INT64_C 1072 # undef UINT64_C 1073 # endif 1074 # ifndef INT64_C 1075 # define INT64_C(c) PeRl_INT64_C(c) 1076 # endif 1077 # ifndef UINT64_C 1078 # define UINT64_C(c) PeRl_UINT64_C(c) 1079 # endif 1080 1081 # ifndef I_STDINT 1082 typedef I64TYPE PERL_INTMAX_T; 1083 typedef U64TYPE PERL_UINTMAX_T; 1084 # endif 1085 # ifndef INTMAX_C 1086 # define INTMAX_C(c) INT64_C(c) 1087 # endif 1088 # ifndef UINTMAX_C 1089 # define UINTMAX_C(c) UINT64_C(c) 1090 # endif 1091 1092 #else /* below QUADKIND is undefined */ 1093 1094 /* Perl doesn't work on 16 bit systems, so must be 32 bit */ 1095 # ifndef I_STDINT 1096 typedef I32TYPE PERL_INTMAX_T; 1097 typedef U32TYPE PERL_UINTMAX_T; 1098 # endif 1099 # ifndef INTMAX_C 1100 # define INTMAX_C(c) INT32_C(c) 1101 # endif 1102 # ifndef UINTMAX_C 1103 # define UINTMAX_C(c) UINT32_C(c) 1104 # endif 1105 1106 #endif /* no QUADKIND */ 1107 1108 #ifdef PERL_CORE 1109 1110 /* byte-swapping functions for big-/little-endian conversion */ 1111 # define _swab_16_(x) ((U16)( \ 1112 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \ 1113 (((U16)(x) & UINT16_C(0xff00)) >> 8) )) 1114 1115 # define _swab_32_(x) ((U32)( \ 1116 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \ 1117 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \ 1118 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \ 1119 (((U32)(x) & UINT32_C(0xff000000)) >> 24) )) 1120 1121 # ifdef HAS_QUAD 1122 # define _swab_64_(x) ((U64)( \ 1123 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \ 1124 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \ 1125 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \ 1126 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \ 1127 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \ 1128 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \ 1129 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \ 1130 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) )) 1131 # endif 1132 1133 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster, 1134 at least on FreeBSD. YMMV, so experiment. */ 1135 #ifndef PERL_ARENA_SIZE 1136 #define PERL_ARENA_SIZE 4080 1137 #endif 1138 1139 /* Maximum level of recursion */ 1140 #ifndef PERL_SUB_DEPTH_WARN 1141 #define PERL_SUB_DEPTH_WARN 100 1142 #endif 1143 1144 #endif /* PERL_CORE */ 1145 1146 /* Maximum number of args that may be passed to an OP_MULTICONCAT op. 1147 * It determines the size of local arrays in S_maybe_multiconcat() and 1148 * pp_multiconcat(). 1149 */ 1150 #define PERL_MULTICONCAT_MAXARG 64 1151 1152 /* The indexes of fields of a multiconcat aux struct. 1153 * The fixed fields are followed by nargs+1 const segment lengths, 1154 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8. 1155 */ 1156 1157 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */ 1158 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */ 1159 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */ 1160 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */ 1161 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */ 1162 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */ 1163 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a 1164 multiconcat header */ 1165 1166 /* We no longer default to creating a new SV for GvSV. 1167 Do this before embed. */ 1168 #ifndef PERL_CREATE_GVSV 1169 # ifndef PERL_DONT_CREATE_GVSV 1170 # define PERL_DONT_CREATE_GVSV 1171 # endif 1172 #endif 1173 1174 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) 1175 #define PERL_USES_PL_PIDSTATUS 1176 #endif 1177 1178 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__) 1179 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION 1180 #endif 1181 1182 #define MEM_SIZE Size_t 1183 1184 /* Round all values passed to malloc up, by default to a multiple of 1185 sizeof(size_t) 1186 */ 1187 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM 1188 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size 1189 #endif 1190 1191 /* sv_grow() will expand strings by at least a certain percentage of 1192 the previously *used* length to avoid excessive calls to realloc(). 1193 The default is 25% of the current length. 1194 */ 1195 #ifndef PERL_STRLEN_EXPAND_SHIFT 1196 # define PERL_STRLEN_EXPAND_SHIFT 2 1197 #endif 1198 1199 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably 1200 * onwards) when building Socket.xs, but we can just use a different definition 1201 * for STRUCT_OFFSET instead. */ 1202 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910 1203 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m)) 1204 #else 1205 # include <stddef.h> 1206 # define STRUCT_OFFSET(s,m) offsetof(s,m) 1207 #endif 1208 1209 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is 1210 * in C89, but apparently there are platforms where it doesn't exist. See 1211 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.) 1212 * */ 1213 #ifdef PERL_GCC_PEDANTIC 1214 # undef HAS_PTRDIFF_T 1215 #endif 1216 1217 #ifdef HAS_PTRDIFF_T 1218 # define Ptrdiff_t ptrdiff_t 1219 #else 1220 # define Ptrdiff_t SSize_t 1221 #endif 1222 1223 #ifndef __SYMBIAN32__ 1224 # include <string.h> 1225 #endif 1226 1227 /* This comes after <stdlib.h> so we don't try to change the standard 1228 * library prototypes; we'll use our own in proto.h instead. */ 1229 1230 #ifdef MYMALLOC 1231 # ifdef PERL_POLLUTE_MALLOC 1232 # ifndef PERL_EXTMALLOC_DEF 1233 # define Perl_malloc malloc 1234 # define Perl_calloc calloc 1235 # define Perl_realloc realloc 1236 # define Perl_mfree free 1237 # endif 1238 # else 1239 # define EMBEDMYMALLOC /* for compatibility */ 1240 # endif 1241 1242 # define safemalloc Perl_malloc 1243 # define safecalloc Perl_calloc 1244 # define saferealloc Perl_realloc 1245 # define safefree Perl_mfree 1246 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \ 1247 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \ 1248 code; \ 1249 } STMT_END 1250 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \ 1251 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch)) 1252 # define panic_write2(s) write(2, s, strlen(s)) 1253 # define CHECK_MALLOC_TAINT(newval) \ 1254 CHECK_MALLOC_TOO_LATE_FOR_( \ 1255 if (newval) { \ 1256 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\ 1257 exit(1); }) 1258 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \ 1259 if (doing_taint(argc,argv,env)) { \ 1260 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \ 1261 }} STMT_END; 1262 #else /* MYMALLOC */ 1263 # define safemalloc safesysmalloc 1264 # define safecalloc safesyscalloc 1265 # define saferealloc safesysrealloc 1266 # define safefree safesysfree 1267 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0) 1268 # define CHECK_MALLOC_TAINT(newval) ((void)0) 1269 # define MALLOC_CHECK_TAINT(argc,argv,env) 1270 #endif /* MYMALLOC */ 1271 1272 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */ 1273 #define TOO_LATE_FOR_(ch,what) Perl_croak(aTHX_ "\"-%c\" is on the #! line, it must also be used on the command line%s", (char)(ch), what) 1274 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "") 1275 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}") 1276 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL) 1277 1278 #ifndef memzero 1279 # define memzero(d,l) memset(d,0,l) 1280 #endif 1281 1282 #ifdef I_NETINET_IN 1283 # include <netinet/in.h> 1284 #endif 1285 1286 #ifdef I_ARPA_INET 1287 # include <arpa/inet.h> 1288 #endif 1289 1290 #ifdef I_SYS_STAT 1291 # include <sys/stat.h> 1292 #endif 1293 1294 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO. 1295 This definition should ideally go into win32/win32.h, but S_IFIFO is 1296 used later here in perl.h before win32/win32.h is being included. */ 1297 #if !defined(S_IFIFO) && defined(_S_IFIFO) 1298 # define S_IFIFO _S_IFIFO 1299 #endif 1300 1301 /* The stat macros for Unisoft System V/88 (and derivatives 1302 like UTekV) are broken, sometimes giving false positives. Undefine 1303 them here and let the code below set them to proper values. 1304 1305 The ghs macro stands for GreenHills Software C-1.8.5 which 1306 is the C compiler for sysV88 and the various derivatives. 1307 This header file bug is corrected in gcc-2.5.8 and later versions. 1308 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */ 1309 1310 #if defined(m88k) && defined(ghs) 1311 # undef S_ISDIR 1312 # undef S_ISCHR 1313 # undef S_ISBLK 1314 # undef S_ISREG 1315 # undef S_ISFIFO 1316 # undef S_ISLNK 1317 #endif 1318 1319 #include <time.h> 1320 1321 #ifdef I_SYS_TIME 1322 # ifdef I_SYS_TIME_KERNEL 1323 # define KERNEL 1324 # endif 1325 # include <sys/time.h> 1326 # ifdef I_SYS_TIME_KERNEL 1327 # undef KERNEL 1328 # endif 1329 #endif 1330 1331 #if defined(HAS_TIMES) && defined(I_SYS_TIMES) 1332 # include <sys/times.h> 1333 #endif 1334 1335 #include <errno.h> 1336 1337 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS) 1338 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */ 1339 #endif 1340 1341 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */ 1342 # include <sys/socket.h> 1343 # if defined(USE_SOCKS) && defined(I_SOCKS) 1344 # if !defined(INCLUDE_PROTOTYPES) 1345 # define INCLUDE_PROTOTYPES /* for <socks.h> */ 1346 # define PERL_SOCKS_NEED_PROTOTYPES 1347 # endif 1348 # include <socks.h> 1349 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */ 1350 # undef INCLUDE_PROTOTYPES 1351 # undef PERL_SOCKS_NEED_PROTOTYPES 1352 # endif 1353 # endif 1354 # ifdef I_NETDB 1355 # ifdef NETWARE 1356 # include<stdio.h> 1357 # endif 1358 # include <netdb.h> 1359 # endif 1360 # ifndef ENOTSOCK 1361 # ifdef I_NET_ERRNO 1362 # include <net/errno.h> 1363 # endif 1364 # endif 1365 #endif 1366 1367 /* sockatmark() is so new (2001) that many places might have it hidden 1368 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required 1369 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */ 1370 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO) 1371 # if defined(__THROW) && defined(__GLIBC__) 1372 int sockatmark(int) __THROW; 1373 # else 1374 int sockatmark(int); 1375 # endif 1376 #endif 1377 1378 #if defined(__osf__) && defined(__cplusplus) && !defined(_XOPEN_SOURCE_EXTENDED) /* Tru64 "cxx" (C++), see hints/dec_osf.sh for why the _XOPEN_SOURCE_EXTENDED cannot be defined. */ 1379 EXTERN_C int fchdir(int); 1380 EXTERN_C int flock(int, int); 1381 EXTERN_C int fseeko(FILE *, off_t, int); 1382 EXTERN_C off_t ftello(FILE *); 1383 #endif 1384 1385 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */ 1386 EXTERN_C char *crypt(const char *, const char *); 1387 #endif 1388 1389 #if defined(__cplusplus) && defined(__CYGWIN__) 1390 EXTERN_C char *crypt(const char *, const char *); 1391 #endif 1392 1393 /* 1394 =head1 Errno 1395 1396 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode 1397 1398 Set C<errno>, and on VMS set C<vaxc$errno>. 1399 1400 =for apidoc mn|void|dSAVEDERRNO 1401 1402 Declare variables needed to save C<errno> and any operating system 1403 specific error number. 1404 1405 =for apidoc mn|void|dSAVE_ERRNO 1406 1407 Declare variables needed to save C<errno> and any operating system 1408 specific error number, and save them for optional later restoration 1409 by C<RESTORE_ERRNO>. 1410 1411 =for apidoc mn|void|SAVE_ERRNO 1412 1413 Save C<errno> and any operating system specific error number for 1414 optional later restoration by C<RESTORE_ERRNO>. Requires 1415 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope. 1416 1417 =for apidoc mn|void|RESTORE_ERRNO 1418 1419 Restore C<errno> and any operating system specific error number that 1420 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>. 1421 1422 =cut 1423 */ 1424 1425 #ifdef SETERRNO 1426 # undef SETERRNO /* SOCKS might have defined this */ 1427 #endif 1428 1429 #ifdef VMS 1430 # define SETERRNO(errcode,vmserrcode) \ 1431 STMT_START { \ 1432 set_errno(errcode); \ 1433 set_vaxc_errno(vmserrcode); \ 1434 } STMT_END 1435 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno 1436 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno 1437 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno ) 1438 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno) 1439 1440 # define LIB_INVARG LIB$_INVARG 1441 # define RMS_DIR RMS$_DIR 1442 # define RMS_FAC RMS$_FAC 1443 # define RMS_FEX RMS$_FEX 1444 # define RMS_FNF RMS$_FNF 1445 # define RMS_IFI RMS$_IFI 1446 # define RMS_ISI RMS$_ISI 1447 # define RMS_PRV RMS$_PRV 1448 # define SS_ACCVIO SS$_ACCVIO 1449 # define SS_DEVOFFLINE SS$_DEVOFFLINE 1450 # define SS_IVCHAN SS$_IVCHAN 1451 # define SS_NORMAL SS$_NORMAL 1452 # define SS_NOPRIV SS$_NOPRIV 1453 # define SS_BUFFEROVF SS$_BUFFEROVF 1454 #else 1455 # define LIB_INVARG 0 1456 # define RMS_DIR 0 1457 # define RMS_FAC 0 1458 # define RMS_FEX 0 1459 # define RMS_FNF 0 1460 # define RMS_IFI 0 1461 # define RMS_ISI 0 1462 # define RMS_PRV 0 1463 # define SS_ACCVIO 0 1464 # define SS_DEVOFFLINE 0 1465 # define SS_IVCHAN 0 1466 # define SS_NORMAL 0 1467 # define SS_NOPRIV 0 1468 # define SS_BUFFEROVF 0 1469 #endif 1470 1471 #ifdef WIN32 1472 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno 1473 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError() 1474 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() ) 1475 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) ) 1476 #endif 1477 1478 #ifdef OS2 1479 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno 1480 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc 1481 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc ) 1482 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno ) 1483 #endif 1484 1485 #ifndef SETERRNO 1486 # define SETERRNO(errcode,vmserrcode) (errno = (errcode)) 1487 #endif 1488 1489 #ifndef dSAVEDERRNO 1490 # define dSAVEDERRNO int saved_errno 1491 # define dSAVE_ERRNO int saved_errno = errno 1492 # define SAVE_ERRNO (saved_errno = errno) 1493 # define RESTORE_ERRNO (errno = saved_errno) 1494 #endif 1495 1496 /* 1497 =head1 Warning and Dieing 1498 1499 =for apidoc Amn|SV *|ERRSV 1500 1501 Returns the SV for C<$@>, creating it if needed. 1502 1503 =for apidoc Am|void|CLEAR_ERRSV 1504 1505 Clear the contents of C<$@>, setting it to the empty string. 1506 1507 This replaces any read-only SV with a fresh SV and removes any magic. 1508 1509 =for apidoc Am|void|SANE_ERRSV 1510 1511 Clean up ERRSV so we can safely set it. 1512 1513 This replaces any read-only SV with a fresh writable copy and removes 1514 any magic. 1515 1516 =cut 1517 */ 1518 1519 #define ERRSV GvSVn(PL_errgv) 1520 1521 /* contains inlined gv_add_by_type */ 1522 #define CLEAR_ERRSV() STMT_START { \ 1523 SV ** const svp = &GvSV(PL_errgv); \ 1524 if (!*svp) { \ 1525 *svp = newSVpvs(""); \ 1526 } else if (SvREADONLY(*svp)) { \ 1527 SvREFCNT_dec_NN(*svp); \ 1528 *svp = newSVpvs(""); \ 1529 } else { \ 1530 SV *const errsv = *svp; \ 1531 SvPVCLEAR(errsv); \ 1532 SvPOK_only(errsv); \ 1533 if (SvMAGICAL(errsv)) { \ 1534 mg_free(errsv); \ 1535 } \ 1536 } \ 1537 } STMT_END 1538 1539 /* contains inlined gv_add_by_type */ 1540 #define SANE_ERRSV() STMT_START { \ 1541 SV ** const svp = &GvSV(PL_errgv); \ 1542 if (!*svp) { \ 1543 *svp = newSVpvs(""); \ 1544 } else if (SvREADONLY(*svp)) { \ 1545 SV *dupsv = newSVsv(*svp); \ 1546 SvREFCNT_dec_NN(*svp); \ 1547 *svp = dupsv; \ 1548 } else { \ 1549 SV *const errsv = *svp; \ 1550 if (SvMAGICAL(errsv)) { \ 1551 mg_free(errsv); \ 1552 } \ 1553 } \ 1554 } STMT_END 1555 1556 1557 #ifdef PERL_CORE 1558 # define DEFSV (0 + GvSVn(PL_defgv)) 1559 # define DEFSV_set(sv) \ 1560 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv)) 1561 # define SAVE_DEFSV \ 1562 ( \ 1563 save_gp(PL_defgv, 0), \ 1564 GvINTRO_off(PL_defgv), \ 1565 SAVEGENERICSV(GvSV(PL_defgv)), \ 1566 GvSV(PL_defgv) = NULL \ 1567 ) 1568 #else 1569 # define DEFSV GvSVn(PL_defgv) 1570 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv)) 1571 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv)) 1572 #endif 1573 1574 #ifndef errno 1575 extern int errno; /* ANSI allows errno to be an lvalue expr. 1576 * For example in multithreaded environments 1577 * something like this might happen: 1578 * extern int *_errno(void); 1579 * #define errno (*_errno()) */ 1580 #endif 1581 1582 #define UNKNOWN_ERRNO_MSG "(unknown)" 1583 1584 #ifdef VMS 1585 #define Strerror(e) strerror((e), vaxc$errno) 1586 #else 1587 #define Strerror(e) strerror(e) 1588 #endif 1589 1590 #ifdef I_SYS_IOCTL 1591 # ifndef _IOCTL_ 1592 # include <sys/ioctl.h> 1593 # endif 1594 #endif 1595 1596 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000) 1597 # ifdef HAS_SOCKETPAIR 1598 # undef HAS_SOCKETPAIR 1599 # endif 1600 # ifdef I_NDBM 1601 # undef I_NDBM 1602 # endif 1603 #endif 1604 1605 #ifndef HAS_SOCKETPAIR 1606 # ifdef HAS_SOCKET 1607 # define socketpair Perl_my_socketpair 1608 # endif 1609 #endif 1610 1611 #if INTSIZE == 2 1612 # define htoni htons 1613 # define ntohi ntohs 1614 #else 1615 # define htoni htonl 1616 # define ntohi ntohl 1617 #endif 1618 1619 /* Configure already sets Direntry_t */ 1620 #if defined(I_DIRENT) 1621 # include <dirent.h> 1622 #elif defined(I_SYS_NDIR) 1623 # include <sys/ndir.h> 1624 #elif defined(I_SYS_DIR) 1625 # include <sys/dir.h> 1626 #endif 1627 1628 /* 1629 * The following gobbledygook brought to you on behalf of __STDC__. 1630 * (I could just use #ifndef __STDC__, but this is more bulletproof 1631 * in the face of half-implementations.) 1632 */ 1633 1634 #if defined(I_SYSMODE) 1635 #include <sys/mode.h> 1636 #endif 1637 1638 #ifndef S_IFMT 1639 # ifdef _S_IFMT 1640 # define S_IFMT _S_IFMT 1641 # else 1642 # define S_IFMT 0170000 1643 # endif 1644 #endif 1645 1646 #ifndef S_ISDIR 1647 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR) 1648 #endif 1649 1650 #ifndef S_ISCHR 1651 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR) 1652 #endif 1653 1654 #ifndef S_ISBLK 1655 # ifdef S_IFBLK 1656 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK) 1657 # else 1658 # define S_ISBLK(m) (0) 1659 # endif 1660 #endif 1661 1662 #ifndef S_ISREG 1663 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG) 1664 #endif 1665 1666 #ifndef S_ISFIFO 1667 # ifdef S_IFIFO 1668 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO) 1669 # else 1670 # define S_ISFIFO(m) (0) 1671 # endif 1672 #endif 1673 1674 #ifndef S_ISLNK 1675 # ifdef _S_ISLNK 1676 # define S_ISLNK(m) _S_ISLNK(m) 1677 # elif defined(_S_IFLNK) 1678 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK) 1679 # elif defined(S_IFLNK) 1680 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK) 1681 # else 1682 # define S_ISLNK(m) (0) 1683 # endif 1684 #endif 1685 1686 #ifndef S_ISSOCK 1687 # ifdef _S_ISSOCK 1688 # define S_ISSOCK(m) _S_ISSOCK(m) 1689 # elif defined(_S_IFSOCK) 1690 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK) 1691 # elif defined(S_IFSOCK) 1692 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK) 1693 # else 1694 # define S_ISSOCK(m) (0) 1695 # endif 1696 #endif 1697 1698 #ifndef S_IRUSR 1699 # ifdef S_IREAD 1700 # define S_IRUSR S_IREAD 1701 # define S_IWUSR S_IWRITE 1702 # define S_IXUSR S_IEXEC 1703 # else 1704 # define S_IRUSR 0400 1705 # define S_IWUSR 0200 1706 # define S_IXUSR 0100 1707 # endif 1708 #endif 1709 1710 #ifndef S_IRGRP 1711 # ifdef S_IRUSR 1712 # define S_IRGRP (S_IRUSR>>3) 1713 # define S_IWGRP (S_IWUSR>>3) 1714 # define S_IXGRP (S_IXUSR>>3) 1715 # else 1716 # define S_IRGRP 0040 1717 # define S_IWGRP 0020 1718 # define S_IXGRP 0010 1719 # endif 1720 #endif 1721 1722 #ifndef S_IROTH 1723 # ifdef S_IRUSR 1724 # define S_IROTH (S_IRUSR>>6) 1725 # define S_IWOTH (S_IWUSR>>6) 1726 # define S_IXOTH (S_IXUSR>>6) 1727 # else 1728 # define S_IROTH 0040 1729 # define S_IWOTH 0020 1730 # define S_IXOTH 0010 1731 # endif 1732 #endif 1733 1734 #ifndef S_ISUID 1735 # define S_ISUID 04000 1736 #endif 1737 1738 #ifndef S_ISGID 1739 # define S_ISGID 02000 1740 #endif 1741 1742 #ifndef S_IRWXU 1743 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR) 1744 #endif 1745 1746 #ifndef S_IRWXG 1747 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP) 1748 #endif 1749 1750 #ifndef S_IRWXO 1751 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH) 1752 #endif 1753 1754 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h> 1755 * which would get included through <sys/file.h >, but that is 3000 1756 * lines in the future. --jhi */ 1757 1758 #if !defined(S_IREAD) && !defined(__HAIKU__) 1759 # define S_IREAD S_IRUSR 1760 #endif 1761 1762 #if !defined(S_IWRITE) && !defined(__HAIKU__) 1763 # define S_IWRITE S_IWUSR 1764 #endif 1765 1766 #ifndef S_IEXEC 1767 # define S_IEXEC S_IXUSR 1768 #endif 1769 1770 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr) 1771 # define SLOPPYDIVIDE 1772 #endif 1773 1774 #ifdef UV 1775 #undef UV 1776 #endif 1777 1778 /* This used to be conditionally defined based on whether we had a sprintf() 1779 * that correctly returns the string length (as required by C89), but we no 1780 * longer need that. XS modules can (and do) use this name, so it must remain 1781 * a part of the API that's visible to modules. 1782 1783 =head1 Miscellaneous Functions 1784 1785 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|... 1786 1787 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use 1788 my_snprintf() 1789 1790 =cut 1791 */ 1792 #define my_sprintf sprintf 1793 1794 /* 1795 * If we have v?snprintf() and the C99 variadic macros, we can just 1796 * use just the v?snprintf(). It is nice to try to trap the buffer 1797 * overflow, however, so if we are DEBUGGING, and we cannot use the 1798 * gcc statement expressions, then use the function wrappers which try 1799 * to trap the overflow. If we can use the gcc statement expressions, 1800 * we can try that even with the version that uses the C99 variadic 1801 * macros. 1802 */ 1803 1804 /* Note that we do not check against snprintf()/vsnprintf() returning 1805 * negative values because that is non-standard behaviour and we use 1806 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and 1807 * that should be true only if the snprintf()/vsnprintf() are true 1808 * to the standard. */ 1809 1810 #define PERL_SNPRINTF_CHECK(len, max, api) STMT_START { if ((max) > 0 && (Size_t)len > (max)) Perl_croak_nocontext("panic: %s buffer overflow", STRINGIFY(api)); } STMT_END 1811 1812 #ifdef USE_QUADMATH 1813 # define my_snprintf Perl_my_snprintf 1814 # define PERL_MY_SNPRINTF_GUARDED 1815 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC) 1816 # ifdef PERL_USE_GCC_BRACE_GROUPS 1817 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; }) 1818 # define PERL_MY_SNPRINTF_GUARDED 1819 # else 1820 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__) 1821 # endif 1822 #else 1823 # define my_snprintf Perl_my_snprintf 1824 # define PERL_MY_SNPRINTF_GUARDED 1825 #endif 1826 1827 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf() 1828 * dies if called under USE_QUADMATH. */ 1829 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC) 1830 # ifdef PERL_USE_GCC_BRACE_GROUPS 1831 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; }) 1832 # define PERL_MY_VSNPRINTF_GUARDED 1833 # else 1834 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__) 1835 # endif 1836 #else 1837 # define my_vsnprintf Perl_my_vsnprintf 1838 # define PERL_MY_VSNPRINTF_GUARDED 1839 #endif 1840 1841 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD() 1842 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore 1843 * the result of my_snprintf() or my_vsnprintf(). (No, you should not 1844 * completely ignore it: otherwise you cannot know whether your output 1845 * was too long.) 1846 * 1847 * int len = my_sprintf(buf, max, ...); 1848 * PERL_MY_SNPRINTF_POST_GUARD(len, max); 1849 * 1850 * The trick is that in certain platforms [a] the my_sprintf() already 1851 * contains the sanity check, while in certain platforms [b] it needs 1852 * to be done as a separate step. The POST_GUARD is that step-- in [a] 1853 * platforms the POST_GUARD actually does nothing since the check has 1854 * already been done. Watch out for the max being the same in both calls. 1855 * 1856 * If you actually use the snprintf/vsnprintf return value already, 1857 * you assumedly are checking its validity somehow. But you can 1858 * insert the POST_GUARD() also in that case. */ 1859 1860 #ifndef PERL_MY_SNPRINTF_GUARDED 1861 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf) 1862 #else 1863 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len) 1864 #endif 1865 1866 #ifndef PERL_MY_VSNPRINTF_GUARDED 1867 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf) 1868 #else 1869 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len) 1870 #endif 1871 1872 #ifdef HAS_STRLCAT 1873 # define my_strlcat strlcat 1874 #endif 1875 1876 #if defined(PERL_CORE) || defined(PERL_EXT) 1877 # ifdef HAS_MEMRCHR 1878 # define my_memrchr memrchr 1879 # else 1880 # define my_memrchr S_my_memrchr 1881 # endif 1882 #endif 1883 1884 #ifdef HAS_STRLCPY 1885 # define my_strlcpy strlcpy 1886 #endif 1887 1888 #ifdef HAS_STRNLEN 1889 # define my_strnlen strnlen 1890 #endif 1891 1892 /* 1893 The IV type is supposed to be long enough to hold any integral 1894 value or a pointer. 1895 --Andy Dougherty August 1996 1896 */ 1897 1898 typedef IVTYPE IV; 1899 typedef UVTYPE UV; 1900 1901 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD) 1902 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX) 1903 # define IV_MAX ((IV)INT64_MAX) 1904 # define IV_MIN ((IV)INT64_MIN) 1905 # define UV_MAX ((UV)UINT64_MAX) 1906 # ifndef UINT64_MIN 1907 # define UINT64_MIN 0 1908 # endif 1909 # define UV_MIN ((UV)UINT64_MIN) 1910 # else 1911 # define IV_MAX PERL_QUAD_MAX 1912 # define IV_MIN PERL_QUAD_MIN 1913 # define UV_MAX PERL_UQUAD_MAX 1914 # define UV_MIN PERL_UQUAD_MIN 1915 # endif 1916 # define IV_IS_QUAD 1917 # define UV_IS_QUAD 1918 #else 1919 # if defined(INT32_MAX) && IVSIZE == 4 1920 # define IV_MAX ((IV)INT32_MAX) 1921 # define IV_MIN ((IV)INT32_MIN) 1922 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */ 1923 # define UV_MAX ((UV)UINT32_MAX) 1924 # else 1925 # define UV_MAX ((UV)4294967295U) 1926 # endif 1927 # ifndef UINT32_MIN 1928 # define UINT32_MIN 0 1929 # endif 1930 # define UV_MIN ((UV)UINT32_MIN) 1931 # else 1932 # define IV_MAX PERL_LONG_MAX 1933 # define IV_MIN PERL_LONG_MIN 1934 # define UV_MAX PERL_ULONG_MAX 1935 # define UV_MIN PERL_ULONG_MIN 1936 # endif 1937 # if IVSIZE == 8 1938 # define IV_IS_QUAD 1939 # define UV_IS_QUAD 1940 # ifndef HAS_QUAD 1941 # define HAS_QUAD 1942 # endif 1943 # else 1944 # undef IV_IS_QUAD 1945 # undef UV_IS_QUAD 1946 #if !defined(PERL_CORE) 1947 /* We think that removing this decade-old undef this will cause too much 1948 breakage on CPAN for too little gain. (See RT #119753) 1949 However, we do need HAS_QUAD in the core for use by the drand48 code. */ 1950 # undef HAS_QUAD 1951 #endif 1952 # endif 1953 #endif 1954 1955 #define Size_t_MAX (~(Size_t)0) 1956 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1) 1957 1958 #define IV_DIG (BIT_DIGITS(IVSIZE * 8)) 1959 #define UV_DIG (BIT_DIGITS(UVSIZE * 8)) 1960 1961 #ifndef NO_PERL_PRESERVE_IVUV 1962 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */ 1963 #endif 1964 1965 /* 1966 * The macros INT2PTR and NUM2PTR are (despite their names) 1967 * bi-directional: they will convert int/float to or from pointers. 1968 * However the conversion to int/float are named explicitly: 1969 * PTR2IV, PTR2UV, PTR2NV. 1970 * 1971 * For int conversions we do not need two casts if pointers are 1972 * the same size as IV and UV. Otherwise we need an explicit 1973 * cast (PTRV) to avoid compiler warnings. 1974 */ 1975 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE) 1976 # define PTRV UV 1977 # define INT2PTR(any,d) (any)(d) 1978 #elif PTRSIZE == LONGSIZE 1979 # define PTRV unsigned long 1980 # define PTR2ul(p) (unsigned long)(p) 1981 #else 1982 # define PTRV unsigned 1983 #endif 1984 1985 #ifndef INT2PTR 1986 # define INT2PTR(any,d) (any)(PTRV)(d) 1987 #endif 1988 1989 #ifndef PTR2ul 1990 # define PTR2ul(p) INT2PTR(unsigned long,p) 1991 #endif 1992 1993 #define NUM2PTR(any,d) (any)(PTRV)(d) 1994 #define PTR2IV(p) INT2PTR(IV,p) 1995 #define PTR2UV(p) INT2PTR(UV,p) 1996 #define PTR2NV(p) NUM2PTR(NV,p) 1997 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */ 1998 1999 /* According to strict ANSI C89 one cannot freely cast between 2000 * data pointers and function (code) pointers. There are at least 2001 * two ways around this. One (used below) is to do two casts, 2002 * first the other pointer to an (unsigned) integer, and then 2003 * the integer to the other pointer. The other way would be 2004 * to use unions to "overlay" the pointers. For an example of 2005 * the latter technique, see union dirpu in struct xpvio in sv.h. 2006 * The only feasible use is probably temporarily storing 2007 * function pointers in a data pointer (such as a void pointer). */ 2008 2009 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */ 2010 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */ 2011 2012 #ifdef USE_LONG_DOUBLE 2013 # if LONG_DOUBLESIZE == DOUBLESIZE 2014 # define LONG_DOUBLE_EQUALS_DOUBLE 2015 # undef USE_LONG_DOUBLE /* Ouch! */ 2016 # endif 2017 #endif 2018 2019 /* The following is all to get LDBL_DIG, in order to pick a nice 2020 default value for printing floating point numbers in Gconvert. 2021 (see config.h) 2022 */ 2023 #ifndef HAS_LDBL_DIG 2024 # if LONG_DOUBLESIZE == 10 2025 # define LDBL_DIG 18 /* assume IEEE */ 2026 # elif LONG_DOUBLESIZE == 12 2027 # define LDBL_DIG 18 /* gcc? */ 2028 # elif LONG_DOUBLESIZE == 16 2029 # define LDBL_DIG 33 /* assume IEEE */ 2030 # elif LONG_DOUBLESIZE == DOUBLESIZE 2031 # define LDBL_DIG DBL_DIG /* bummer */ 2032 # endif 2033 #endif 2034 2035 typedef NVTYPE NV; 2036 2037 #ifdef I_IEEEFP 2038 # include <ieeefp.h> 2039 #endif 2040 2041 #if defined(__DECC) && defined(__osf__) 2042 /* Also Tru64 cc has broken NaN comparisons. */ 2043 # define NAN_COMPARE_BROKEN 2044 #endif 2045 #if defined(__sgi) 2046 # define NAN_COMPARE_BROKEN 2047 #endif 2048 2049 #ifdef USE_LONG_DOUBLE 2050 # ifdef I_SUNMATH 2051 # include <sunmath.h> 2052 # endif 2053 # if defined(LDBL_DIG) 2054 # define NV_DIG LDBL_DIG 2055 # ifdef LDBL_MANT_DIG 2056 # define NV_MANT_DIG LDBL_MANT_DIG 2057 # endif 2058 # ifdef LDBL_MIN 2059 # define NV_MIN LDBL_MIN 2060 # endif 2061 # ifdef LDBL_MAX 2062 # define NV_MAX LDBL_MAX 2063 # endif 2064 # ifdef LDBL_MIN_EXP 2065 # define NV_MIN_EXP LDBL_MIN_EXP 2066 # endif 2067 # ifdef LDBL_MAX_EXP 2068 # define NV_MAX_EXP LDBL_MAX_EXP 2069 # endif 2070 # ifdef LDBL_MIN_10_EXP 2071 # define NV_MIN_10_EXP LDBL_MIN_10_EXP 2072 # endif 2073 # ifdef LDBL_MAX_10_EXP 2074 # define NV_MAX_10_EXP LDBL_MAX_10_EXP 2075 # endif 2076 # ifdef LDBL_EPSILON 2077 # define NV_EPSILON LDBL_EPSILON 2078 # endif 2079 # ifdef LDBL_MAX 2080 # define NV_MAX LDBL_MAX 2081 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */ 2082 # elif defined(HUGE_VALL) 2083 # define NV_MAX HUGE_VALL 2084 # endif 2085 # endif 2086 # if defined(HAS_SQRTL) 2087 # define Perl_acos acosl 2088 # define Perl_asin asinl 2089 # define Perl_atan atanl 2090 # define Perl_atan2 atan2l 2091 # define Perl_ceil ceill 2092 # define Perl_cos cosl 2093 # define Perl_cosh coshl 2094 # define Perl_exp expl 2095 /* no Perl_fabs, but there's PERL_ABS */ 2096 # define Perl_floor floorl 2097 # define Perl_fmod fmodl 2098 # define Perl_log logl 2099 # define Perl_log10 log10l 2100 # define Perl_pow powl 2101 # define Perl_sin sinl 2102 # define Perl_sinh sinhl 2103 # define Perl_sqrt sqrtl 2104 # define Perl_tan tanl 2105 # define Perl_tanh tanhl 2106 # endif 2107 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */ 2108 # ifndef Perl_modf 2109 # ifdef HAS_MODFL 2110 # define Perl_modf(x,y) modfl(x,y) 2111 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no 2112 prototype in <math.h> */ 2113 # ifndef HAS_MODFL_PROTO 2114 EXTERN_C long double modfl(long double, long double *); 2115 # endif 2116 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL) 2117 extern long double Perl_my_modfl(long double x, long double *ip); 2118 # define Perl_modf(x,y) Perl_my_modfl(x,y) 2119 # endif 2120 # endif 2121 # ifndef Perl_frexp 2122 # ifdef HAS_FREXPL 2123 # define Perl_frexp(x,y) frexpl(x,y) 2124 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL) 2125 extern long double Perl_my_frexpl(long double x, int *e); 2126 # define Perl_frexp(x,y) Perl_my_frexpl(x,y) 2127 # endif 2128 # endif 2129 # ifndef Perl_ldexp 2130 # ifdef HAS_LDEXPL 2131 # define Perl_ldexp(x, y) ldexpl(x,y) 2132 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2 2133 # define Perl_ldexp(x,y) scalbnl(x,y) 2134 # endif 2135 # endif 2136 # ifndef Perl_isnan 2137 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99)) 2138 # define Perl_isnan(x) isnanl(x) 2139 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */ 2140 # define Perl_isnan(x) isnan(x) 2141 # endif 2142 # endif 2143 # ifndef Perl_isinf 2144 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99)) 2145 # define Perl_isinf(x) isinfl(x) 2146 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */ 2147 # define Perl_isinf(x) isinf(x) 2148 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN) 2149 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX) 2150 # endif 2151 # endif 2152 # ifndef Perl_isfinite 2153 # define Perl_isfinite(x) Perl_isfinitel(x) 2154 # endif 2155 #elif defined(USE_QUADMATH) && defined(I_QUADMATH) 2156 # include <quadmath.h> 2157 # define NV_DIG FLT128_DIG 2158 # define NV_MANT_DIG FLT128_MANT_DIG 2159 # define NV_MIN FLT128_MIN 2160 # define NV_MAX FLT128_MAX 2161 # define NV_MIN_EXP FLT128_MIN_EXP 2162 # define NV_MAX_EXP FLT128_MAX_EXP 2163 # define NV_EPSILON FLT128_EPSILON 2164 # define NV_MIN_10_EXP FLT128_MIN_10_EXP 2165 # define NV_MAX_10_EXP FLT128_MAX_10_EXP 2166 # define Perl_acos acosq 2167 # define Perl_asin asinq 2168 # define Perl_atan atanq 2169 # define Perl_atan2 atan2q 2170 # define Perl_ceil ceilq 2171 # define Perl_cos cosq 2172 # define Perl_cosh coshq 2173 # define Perl_exp expq 2174 /* no Perl_fabs, but there's PERL_ABS */ 2175 # define Perl_floor floorq 2176 # define Perl_fmod fmodq 2177 # define Perl_log logq 2178 # define Perl_log10 log10q 2179 # define Perl_signbit signbitq 2180 # define Perl_pow powq 2181 # define Perl_sin sinq 2182 # define Perl_sinh sinhq 2183 # define Perl_sqrt sqrtq 2184 # define Perl_tan tanq 2185 # define Perl_tanh tanhq 2186 # define Perl_modf(x,y) modfq(x,y) 2187 # define Perl_frexp(x,y) frexpq(x,y) 2188 # define Perl_ldexp(x, y) ldexpq(x,y) 2189 # define Perl_isinf(x) isinfq(x) 2190 # define Perl_isnan(x) isnanq(x) 2191 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x)) 2192 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1) 2193 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3) 2194 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4) 2195 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1) 2196 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2) 2197 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0) 2198 #else 2199 # define NV_DIG DBL_DIG 2200 # define NV_MANT_DIG DBL_MANT_DIG 2201 # define NV_MIN DBL_MIN 2202 # define NV_MAX DBL_MAX 2203 # define NV_MIN_EXP DBL_MIN_EXP 2204 # define NV_MAX_EXP DBL_MAX_EXP 2205 # define NV_MIN_10_EXP DBL_MIN_10_EXP 2206 # define NV_MAX_10_EXP DBL_MAX_10_EXP 2207 # define NV_EPSILON DBL_EPSILON 2208 # define NV_MAX DBL_MAX 2209 # define NV_MIN DBL_MIN 2210 2211 /* These math interfaces are C89. */ 2212 # define Perl_acos acos 2213 # define Perl_asin asin 2214 # define Perl_atan atan 2215 # define Perl_atan2 atan2 2216 # define Perl_ceil ceil 2217 # define Perl_cos cos 2218 # define Perl_cosh cosh 2219 # define Perl_exp exp 2220 /* no Perl_fabs, but there's PERL_ABS */ 2221 # define Perl_floor floor 2222 # define Perl_fmod fmod 2223 # define Perl_log log 2224 # define Perl_log10 log10 2225 # define Perl_pow pow 2226 # define Perl_sin sin 2227 # define Perl_sinh sinh 2228 # define Perl_sqrt sqrt 2229 # define Perl_tan tan 2230 # define Perl_tanh tanh 2231 2232 # define Perl_modf(x,y) modf(x,y) 2233 # define Perl_frexp(x,y) frexp(x,y) 2234 # define Perl_ldexp(x,y) ldexp(x,y) 2235 2236 # ifndef Perl_isnan 2237 # ifdef HAS_ISNAN 2238 # define Perl_isnan(x) isnan(x) 2239 # endif 2240 # endif 2241 # ifndef Perl_isinf 2242 # if defined(HAS_ISINF) 2243 # define Perl_isinf(x) isinf(x) 2244 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN) 2245 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX) 2246 # endif 2247 # endif 2248 # ifndef Perl_isfinite 2249 # ifdef HAS_ISFINITE 2250 # define Perl_isfinite(x) isfinite(x) 2251 # elif defined(HAS_FINITE) 2252 # define Perl_isfinite(x) finite(x) 2253 # endif 2254 # endif 2255 #endif 2256 2257 /* fpclassify(): C99. It is supposed to be a macro that switches on 2258 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/ 2259 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY) 2260 # include <math.h> 2261 # if defined(FP_INFINITE) && defined(FP_NAN) 2262 # define Perl_fp_class(x) fpclassify(x) 2263 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE) 2264 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN) 2265 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL) 2266 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL) 2267 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO) 2268 # elif defined(FP_PLUS_INF) && defined(FP_QNAN) 2269 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is 2270 * actually not the C99 fpclassify, with its own set of return defines. */ 2271 # define Perl_fp_class(x) fpclassify(x) 2272 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF) 2273 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF) 2274 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2275 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2276 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM) 2277 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM) 2278 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM) 2279 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM) 2280 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO) 2281 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO) 2282 # else 2283 # undef Perl_fp_class /* Unknown set of defines */ 2284 # endif 2285 #endif 2286 2287 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however, 2288 * are identical to the C99 fpclassify(). */ 2289 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY) 2290 # include <math.h> 2291 # ifdef __VMS 2292 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */ 2293 # include <fp.h> 2294 /* oh, and the isnormal macro has a typo in it! */ 2295 # undef isnormal 2296 # define isnormal(x) Perl_fp_class_norm(x) 2297 # endif 2298 # if defined(FP_INFINITE) && defined(FP_NAN) 2299 # define Perl_fp_class(x) fp_classify(x) 2300 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE) 2301 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN) 2302 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL) 2303 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL) 2304 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO) 2305 # else 2306 # undef Perl_fp_class /* Unknown set of defines */ 2307 # endif 2308 #endif 2309 2310 /* Feel free to check with me for the SGI manpages, SGI testing, 2311 * etcetera, if you want to try getting this to work with IRIX. 2312 * 2313 * - Allen <allens@cpan.org> */ 2314 2315 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */ 2316 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL)) 2317 /* Solaris and IRIX have fpclass/fpclassl, but they are using 2318 * an enum typedef, not cpp symbols, and Configure doesn't detect that. 2319 * Define some symbols also as cpp symbols so we can detect them. */ 2320 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */ 2321 # define FP_PINF FP_PINF 2322 # define FP_QNAN FP_QNAN 2323 # endif 2324 # include <math.h> 2325 # ifdef I_IEEFP 2326 # include <ieeefp.h> 2327 # endif 2328 # ifdef I_FP 2329 # include <fp.h> 2330 # endif 2331 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL) 2332 # define Perl_fp_class(x) fpclassl(x) 2333 # else 2334 # define Perl_fp_class(x) fpclass(x) 2335 # endif 2336 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN) 2337 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN) 2338 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN) 2339 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF) 2340 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF) 2341 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM) 2342 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM) 2343 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM) 2344 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM) 2345 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO) 2346 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO) 2347 # elif defined(FP_PINF) && defined(FP_QNAN) 2348 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2349 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2350 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF) 2351 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF) 2352 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM) 2353 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM) 2354 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM) 2355 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM) 2356 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO) 2357 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO) 2358 # else 2359 # undef Perl_fp_class /* Unknown set of defines */ 2360 # endif 2361 #endif 2362 2363 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */ 2364 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL)) 2365 # include <math.h> 2366 # if !defined(FP_SNAN) && defined(I_FP_CLASS) 2367 # include <fp_class.h> 2368 # endif 2369 # if defined(FP_POS_INF) && defined(FP_QNAN) 2370 # ifdef __sgi /* XXX Configure test instead */ 2371 # ifdef USE_LONG_DOUBLE 2372 # define Perl_fp_class(x) fp_class_l(x) 2373 # else 2374 # define Perl_fp_class(x) fp_class_d(x) 2375 # endif 2376 # else 2377 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL) 2378 # define Perl_fp_class(x) fp_classl(x) 2379 # else 2380 # define Perl_fp_class(x) fp_class(x) 2381 # endif 2382 # endif 2383 # if defined(FP_POS_INF) && defined(FP_QNAN) 2384 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2385 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2386 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF) 2387 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF) 2388 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM) 2389 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM) 2390 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM) 2391 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM) 2392 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO) 2393 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO) 2394 # else 2395 # undef Perl_fp_class /* Unknown set of defines */ 2396 # endif 2397 # endif 2398 #endif 2399 2400 /* class(), _class(): Legacy: AIX. */ 2401 #if !defined(Perl_fp_class) && defined(HAS_CLASS) 2402 # include <math.h> 2403 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF) 2404 # ifndef _cplusplus 2405 # define Perl_fp_class(x) class(x) 2406 # else 2407 # define Perl_fp_class(x) _class(x) 2408 # endif 2409 # if defined(FP_PLUS_INF) && defined(FP_NANQ) 2410 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS) 2411 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ) 2412 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF) 2413 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF) 2414 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM) 2415 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM) 2416 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM) 2417 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM) 2418 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO) 2419 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO) 2420 # else 2421 # undef Perl_fp_class /* Unknown set of defines */ 2422 # endif 2423 # endif 2424 #endif 2425 2426 /* Win32: _fpclass(), _isnan(), _finite(). */ 2427 #ifdef _MSC_VER 2428 # ifndef Perl_isnan 2429 # define Perl_isnan(x) _isnan(x) 2430 # endif 2431 # ifndef Perl_isfinite 2432 # define Perl_isfinite(x) _finite(x) 2433 # endif 2434 # ifndef Perl_fp_class_snan 2435 /* No simple way to #define Perl_fp_class because _fpclass() 2436 * returns a set of bits. */ 2437 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN) 2438 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN) 2439 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN)) 2440 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF)) 2441 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF)) 2442 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF)) 2443 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN) 2444 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN) 2445 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN)) 2446 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND) 2447 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD) 2448 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD)) 2449 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ) 2450 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ) 2451 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ)) 2452 # endif 2453 #endif 2454 2455 #if !defined(Perl_fp_class_inf) && \ 2456 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf) 2457 # define Perl_fp_class_inf(x) \ 2458 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x)) 2459 #endif 2460 2461 #if !defined(Perl_fp_class_nan) && \ 2462 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan) 2463 # define Perl_fp_class_nan(x) \ 2464 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x)) 2465 #endif 2466 2467 #if !defined(Perl_fp_class_zero) && \ 2468 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero) 2469 # define Perl_fp_class_zero(x) \ 2470 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x)) 2471 #endif 2472 2473 #if !defined(Perl_fp_class_norm) && \ 2474 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm) 2475 # define Perl_fp_class_norm(x) \ 2476 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x)) 2477 #endif 2478 2479 #if !defined(Perl_fp_class_denorm) && \ 2480 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm) 2481 # define Perl_fp_class_denorm(x) \ 2482 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x)) 2483 #endif 2484 2485 #ifndef Perl_isnan 2486 # ifdef Perl_fp_class_nan 2487 # define Perl_isnan(x) Perl_fp_class_nan(x) 2488 # elif defined(HAS_UNORDERED) 2489 # define Perl_isnan(x) unordered((x), 0.0) 2490 # else 2491 # define Perl_isnan(x) ((x)!=(x)) 2492 # endif 2493 #endif 2494 2495 #ifndef Perl_isinf 2496 # ifdef Perl_fp_class_inf 2497 # define Perl_isinf(x) Perl_fp_class_inf(x) 2498 # endif 2499 #endif 2500 2501 #ifndef Perl_isfinite 2502 # if defined(HAS_ISFINITE) && !defined(isfinite) 2503 # define Perl_isfinite(x) isfinite((double)(x)) 2504 # elif defined(HAS_FINITE) 2505 # define Perl_isfinite(x) finite((double)(x)) 2506 # elif defined(Perl_fp_class_finite) 2507 # define Perl_isfinite(x) Perl_fp_class_finite(x) 2508 # else 2509 /* For the infinities the multiplication returns nan, 2510 * for the nan the multiplication also returns nan, 2511 * for everything else (that is, finite) zero should be returned. */ 2512 # define Perl_isfinite(x) (((x) * 0) == 0) 2513 # endif 2514 #endif 2515 2516 #ifndef Perl_isinf 2517 # if defined(Perl_isfinite) && defined(Perl_isnan) 2518 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x)) 2519 # endif 2520 #endif 2521 2522 /* We need Perl_isfinitel (ends with ell) (if available) even when 2523 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags) 2524 * needs that. */ 2525 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel) 2526 /* If isfinite() is a macro and looks like we have C99, 2527 * we assume it's the type-aware C99 isfinite(). */ 2528 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99) 2529 # define Perl_isfinitel(x) isfinite(x) 2530 # elif defined(HAS_ISFINITEL) 2531 # define Perl_isfinitel(x) isfinitel(x) 2532 # elif defined(HAS_FINITEL) 2533 # define Perl_isfinitel(x) finitel(x) 2534 # elif defined(HAS_INFL) && defined(HAS_NANL) 2535 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x)) 2536 # else 2537 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */ 2538 # endif 2539 #endif 2540 2541 /* The default is to use Perl's own atof() implementation (in numeric.c). 2542 * Usually that is the one to use but for some platforms (e.g. UNICOS) 2543 * it is however best to use the native implementation of atof. 2544 * You can experiment with using your native one by -DUSE_PERL_ATOF=0. 2545 * Some good tests to try out with either setting are t/base/num.t, 2546 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles 2547 * you may need to be using a different function than atof! */ 2548 2549 #ifndef USE_PERL_ATOF 2550 # ifndef _UNICOS 2551 # define USE_PERL_ATOF 2552 # endif 2553 #else 2554 # if USE_PERL_ATOF == 0 2555 # undef USE_PERL_ATOF 2556 # endif 2557 #endif 2558 2559 #ifdef USE_PERL_ATOF 2560 # define Perl_atof(s) Perl_my_atof(s) 2561 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0) 2562 #else 2563 # define Perl_atof(s) (NV)atof(s) 2564 # define Perl_atof2(s, n) ((n) = atof(s)) 2565 #endif 2566 #define my_atof2(a,b) my_atof3(a,b,0) 2567 2568 /* 2569 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be 2570 * ambiguous. It may be equivalent to (signed char) or (unsigned char) 2571 * depending on local options. Until Configure detects this (or at least 2572 * detects whether the "signed" keyword is available) the CHAR ranges 2573 * will not be included. UCHAR functions normally. 2574 * - kja 2575 */ 2576 2577 #define PERL_UCHAR_MIN ((unsigned char)0) 2578 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX) 2579 2580 #define PERL_USHORT_MIN ((unsigned short)0) 2581 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX) 2582 2583 #define PERL_SHORT_MAX ((short)SHRT_MAX) 2584 #define PERL_SHORT_MIN ((short)SHRT_MIN) 2585 2586 #define PERL_UINT_MAX ((unsigned int)UINT_MAX) 2587 #define PERL_UINT_MIN ((unsigned int)0) 2588 2589 #define PERL_INT_MAX ((int)INT_MAX) 2590 #define PERL_INT_MIN ((int)INT_MIN) 2591 2592 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX) 2593 #define PERL_ULONG_MIN ((unsigned long)0L) 2594 2595 #define PERL_LONG_MAX ((long)LONG_MAX) 2596 #define PERL_LONG_MIN ((long)LONG_MIN) 2597 2598 #ifdef UV_IS_QUAD 2599 # define PERL_UQUAD_MAX (~(UV)0) 2600 # define PERL_UQUAD_MIN ((UV)0) 2601 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1)) 2602 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3)) 2603 #endif 2604 2605 /* 2606 =head1 Numeric functions 2607 2608 =for apidoc AmnUh||PERL_INT_MIN 2609 =for apidoc AmnUh||PERL_LONG_MAX 2610 =for apidoc AmnUh||PERL_LONG_MIN 2611 =for apidoc AmnUh||PERL_QUAD_MAX 2612 =for apidoc AmnUh||PERL_SHORT_MAX 2613 =for apidoc AmnUh||PERL_SHORT_MIN 2614 =for apidoc AmnUh||PERL_UCHAR_MAX 2615 =for apidoc AmnUh||PERL_UCHAR_MIN 2616 =for apidoc AmnUh||PERL_UINT_MAX 2617 =for apidoc AmnUh||PERL_ULONG_MAX 2618 =for apidoc AmnUh||PERL_ULONG_MIN 2619 =for apidoc AmnUh||PERL_UQUAD_MAX 2620 =for apidoc AmnUh||PERL_UQUAD_MIN 2621 =for apidoc AmnUh||PERL_USHORT_MAX 2622 =for apidoc AmnUh||PERL_USHORT_MIN 2623 =for apidoc AmnUh||PERL_QUAD_MIN 2624 =for apidoc AmnU||PERL_INT_MAX 2625 This and 2626 C<PERL_INT_MIN>, 2627 C<PERL_LONG_MAX>, 2628 C<PERL_LONG_MIN>, 2629 C<PERL_QUAD_MAX>, 2630 C<PERL_SHORT_MAX>, 2631 C<PERL_SHORT_MIN>, 2632 C<PERL_UCHAR_MAX>, 2633 C<PERL_UCHAR_MIN>, 2634 C<PERL_UINT_MAX>, 2635 C<PERL_ULONG_MAX>, 2636 C<PERL_ULONG_MIN>, 2637 C<PERL_UQUAD_MAX>, 2638 C<PERL_UQUAD_MIN>, 2639 C<PERL_USHORT_MAX>, 2640 C<PERL_USHORT_MIN>, 2641 C<PERL_QUAD_MIN> 2642 give the largest and smallest number representable in the current 2643 platform in variables of the corresponding types. 2644 2645 For signed types, the smallest representable number is the most negative 2646 number, the one furthest away from zero. 2647 2648 For C99 and later compilers, these correspond to things like C<INT_MAX>, which 2649 are available to the C code. But these constants, furnished by Perl, 2650 allow code compiled on earlier compilers to portably have access to the same 2651 constants. 2652 2653 =cut 2654 2655 */ 2656 2657 typedef MEM_SIZE STRLEN; 2658 2659 typedef struct op OP; 2660 typedef struct cop COP; 2661 typedef struct unop UNOP; 2662 typedef struct unop_aux UNOP_AUX; 2663 typedef struct binop BINOP; 2664 typedef struct listop LISTOP; 2665 typedef struct logop LOGOP; 2666 typedef struct pmop PMOP; 2667 typedef struct svop SVOP; 2668 typedef struct padop PADOP; 2669 typedef struct pvop PVOP; 2670 typedef struct loop LOOP; 2671 typedef struct methop METHOP; 2672 2673 #ifdef PERL_CORE 2674 typedef struct opslab OPSLAB; 2675 typedef struct opslot OPSLOT; 2676 #endif 2677 2678 typedef struct block_hooks BHK; 2679 typedef struct custom_op XOP; 2680 2681 typedef struct interpreter PerlInterpreter; 2682 2683 /* SGI's <sys/sema.h> has struct sv */ 2684 #if defined(__sgi) 2685 # define STRUCT_SV perl_sv 2686 #else 2687 # define STRUCT_SV sv 2688 #endif 2689 typedef struct STRUCT_SV SV; 2690 typedef struct av AV; 2691 typedef struct hv HV; 2692 typedef struct cv CV; 2693 typedef struct p5rx REGEXP; 2694 typedef struct gp GP; 2695 typedef struct gv GV; 2696 typedef struct io IO; 2697 typedef struct context PERL_CONTEXT; 2698 typedef struct block BLOCK; 2699 2700 typedef struct magic MAGIC; 2701 typedef struct xpv XPV; 2702 typedef struct xpviv XPVIV; 2703 typedef struct xpvuv XPVUV; 2704 typedef struct xpvnv XPVNV; 2705 typedef struct xpvmg XPVMG; 2706 typedef struct xpvlv XPVLV; 2707 typedef struct xpvinvlist XINVLIST; 2708 typedef struct xpvav XPVAV; 2709 typedef struct xpvhv XPVHV; 2710 typedef struct xpvgv XPVGV; 2711 typedef struct xpvcv XPVCV; 2712 typedef struct xpvbm XPVBM; 2713 typedef struct xpvfm XPVFM; 2714 typedef struct xpvio XPVIO; 2715 typedef struct mgvtbl MGVTBL; 2716 typedef union any ANY; 2717 typedef struct ptr_tbl_ent PTR_TBL_ENT_t; 2718 typedef struct ptr_tbl PTR_TBL_t; 2719 typedef struct clone_params CLONE_PARAMS; 2720 2721 /* a pad is currently just an AV; but that might change, 2722 * so hide the type. */ 2723 typedef struct padlist PADLIST; 2724 typedef AV PAD; 2725 typedef struct padnamelist PADNAMELIST; 2726 typedef struct padname PADNAME; 2727 2728 /* always enable PERL_OP_PARENT */ 2729 #if !defined(PERL_OP_PARENT) 2730 # define PERL_OP_PARENT 2731 #endif 2732 2733 /* enable PERL_COPY_ON_WRITE by default */ 2734 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW) 2735 # define PERL_COPY_ON_WRITE 2736 #endif 2737 2738 #ifdef PERL_COPY_ON_WRITE 2739 # define PERL_ANY_COW 2740 #else 2741 # define PERL_SAWAMPERSAND 2742 #endif 2743 2744 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS) 2745 # error PERL_DEBUG_READONLY_OPS only works with ithreads 2746 #endif 2747 2748 #include "handy.h" 2749 #include "charclass_invlists.h" 2750 2751 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO) 2752 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO) 2753 # define USE_64_BIT_RAWIO /* implicit */ 2754 # endif 2755 #endif 2756 2757 /* Notice the use of HAS_FSEEKO: now we are obligated to always use 2758 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself, 2759 * however, because operating systems like to do that themself. */ 2760 #ifndef FSEEKSIZE 2761 # ifdef HAS_FSEEKO 2762 # define FSEEKSIZE LSEEKSIZE 2763 # else 2764 # define FSEEKSIZE LONGSIZE 2765 # endif 2766 #endif 2767 2768 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO) 2769 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO) 2770 # define USE_64_BIT_STDIO /* implicit */ 2771 # endif 2772 #endif 2773 2774 #ifdef USE_64_BIT_RAWIO 2775 # ifdef HAS_OFF64_T 2776 # undef Off_t 2777 # define Off_t off64_t 2778 # undef LSEEKSIZE 2779 # define LSEEKSIZE 8 2780 # endif 2781 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that 2782 * will trigger defines like the ones below. Some 64-bit environments, 2783 * however, do not. Therefore we have to explicitly mix and match. */ 2784 # if defined(USE_OPEN64) 2785 # define open open64 2786 # endif 2787 # if defined(USE_LSEEK64) 2788 # define lseek lseek64 2789 # else 2790 # if defined(USE_LLSEEK) 2791 # define lseek llseek 2792 # endif 2793 # endif 2794 # if defined(USE_STAT64) 2795 # define stat stat64 2796 # endif 2797 # if defined(USE_FSTAT64) 2798 # define fstat fstat64 2799 # endif 2800 # if defined(USE_LSTAT64) 2801 # define lstat lstat64 2802 # endif 2803 # if defined(USE_FLOCK64) 2804 # define flock flock64 2805 # endif 2806 # if defined(USE_LOCKF64) 2807 # define lockf lockf64 2808 # endif 2809 # if defined(USE_FCNTL64) 2810 # define fcntl fcntl64 2811 # endif 2812 # if defined(USE_TRUNCATE64) 2813 # define truncate truncate64 2814 # endif 2815 # if defined(USE_FTRUNCATE64) 2816 # define ftruncate ftruncate64 2817 # endif 2818 #endif 2819 2820 #ifdef USE_64_BIT_STDIO 2821 # ifdef HAS_FPOS64_T 2822 # undef Fpos_t 2823 # define Fpos_t fpos64_t 2824 # endif 2825 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that 2826 * will trigger defines like the ones below. Some 64-bit environments, 2827 * however, do not. */ 2828 # if defined(USE_FOPEN64) 2829 # define fopen fopen64 2830 # endif 2831 # if defined(USE_FSEEK64) 2832 # define fseek fseek64 /* don't do fseeko here, see perlio.c */ 2833 # endif 2834 # if defined(USE_FTELL64) 2835 # define ftell ftell64 /* don't do ftello here, see perlio.c */ 2836 # endif 2837 # if defined(USE_FSETPOS64) 2838 # define fsetpos fsetpos64 2839 # endif 2840 # if defined(USE_FGETPOS64) 2841 # define fgetpos fgetpos64 2842 # endif 2843 # if defined(USE_TMPFILE64) 2844 # define tmpfile tmpfile64 2845 # endif 2846 # if defined(USE_FREOPEN64) 2847 # define freopen freopen64 2848 # endif 2849 #endif 2850 2851 #if defined(OS2) 2852 # include "iperlsys.h" 2853 #endif 2854 2855 #ifdef DOSISH 2856 # if defined(OS2) 2857 # include "os2ish.h" 2858 # else 2859 # include "dosish.h" 2860 # endif 2861 #elif defined(VMS) 2862 # include "vmsish.h" 2863 #elif defined(PLAN9) 2864 # include "./plan9/plan9ish.h" 2865 #elif defined(__VOS__) 2866 # ifdef __GNUC__ 2867 # include "./vos/vosish.h" 2868 # else 2869 # include "vos/vosish.h" 2870 # endif 2871 #elif defined(__SYMBIAN32__) 2872 # include "symbian/symbianish.h" 2873 #elif defined(__HAIKU__) 2874 # include "haiku/haikuish.h" 2875 #else 2876 # include "unixish.h" 2877 #endif 2878 2879 #ifdef __amigaos4__ 2880 # include "amigaos.h" 2881 # undef FD_CLOEXEC /* a lie in AmigaOS */ 2882 #endif 2883 2884 /* NSIG logic from Configure --> */ 2885 #ifndef NSIG 2886 # ifdef _NSIG 2887 # define NSIG (_NSIG) 2888 # elif defined(SIGMAX) 2889 # define NSIG (SIGMAX+1) 2890 # elif defined(SIG_MAX) 2891 # define NSIG (SIG_MAX+1) 2892 # elif defined(_SIG_MAX) 2893 # define NSIG (_SIG_MAX+1) 2894 # elif defined(MAXSIG) 2895 # define NSIG (MAXSIG+1) 2896 # elif defined(MAX_SIG) 2897 # define NSIG (MAX_SIG+1) 2898 # elif defined(SIGARRAYSIZE) 2899 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 2900 # elif defined(_sys_nsig) 2901 # define NSIG (_sys_nsig) /* Solaris 2.5 */ 2902 # else 2903 /* Default to some arbitrary number that's big enough to get most 2904 * of the common signals. */ 2905 # define NSIG 50 2906 # endif 2907 #endif 2908 /* <-- NSIG logic from Configure */ 2909 2910 #ifndef NO_ENVIRON_ARRAY 2911 # define USE_ENVIRON_ARRAY 2912 #endif 2913 2914 #ifdef USE_ITHREADS 2915 /* On some platforms it would be safe to use a read/write mutex with many 2916 * readers possible at the same time. On other platforms, notably IBM ones, 2917 * subsequent getenv calls destroy earlier ones. Those platforms would not 2918 * be able to handle simultaneous getenv calls */ 2919 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex) 2920 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex) 2921 # define ENV_INIT MUTEX_INIT(&PL_env_mutex); 2922 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex); 2923 #else 2924 # define ENV_LOCK NOOP; 2925 # define ENV_UNLOCK NOOP; 2926 # define ENV_INIT NOOP; 2927 # define ENV_TERM NOOP; 2928 #endif 2929 2930 /* Some critical sections need to lock both the locale and the environment. 2931 * XXX khw intends to change this to lock both mutexes, but that brings up 2932 * issues of potential deadlock, so should be done at the beginning of a 2933 * development cycle. So for now, it just locks the environment. Note that 2934 * many modern platforms are locale-thread-safe anyway, so locking the locale 2935 * mutex is a no-op anyway */ 2936 #define ENV_LOCALE_LOCK ENV_LOCK 2937 #define ENV_LOCALE_UNLOCK ENV_UNLOCK 2938 2939 /* And some critical sections care only that no one else is writing either the 2940 * locale nor the environment. XXX Again this is for the future. This can be 2941 * simulated with using COND_WAIT in thread.h */ 2942 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK 2943 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK 2944 2945 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) 2946 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg 2947 * signal handlers. But the perl core itself only fully supports 1-arg 2948 * handlers, so don't enable for now. 2949 * NB: POSIX::sigaction() supports both. 2950 * 2951 * # define PERL_USE_3ARG_SIGHANDLER 2952 */ 2953 #endif 2954 2955 /* Siginfo_t: 2956 * This is an alias for the OS's siginfo_t, except that where the OS 2957 * doesn't support it, declare a dummy version instead. This allows us to 2958 * have signal handler functions which always have a Siginfo_t parameter 2959 * regardless of platform, (and which will just be passed a NULL value 2960 * where the OS doesn't support HAS_SIGACTION). 2961 */ 2962 2963 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) 2964 typedef siginfo_t Siginfo_t; 2965 #else 2966 #ifdef si_signo /* minix */ 2967 #undef si_signo 2968 #endif 2969 typedef struct { 2970 int si_signo; 2971 } Siginfo_t; 2972 #endif 2973 2974 2975 /* 2976 * initialise to avoid floating-point exceptions from overflow, etc 2977 */ 2978 #ifndef PERL_FPU_INIT 2979 # ifdef HAS_FPSETMASK 2980 # if HAS_FLOATINGPOINT_H 2981 # include <floatingpoint.h> 2982 # endif 2983 /* Some operating systems have this as a macro, which in turn expands to a comma 2984 expression, and the last sub-expression is something that gets calculated, 2985 and then they have the gall to warn that a value computed is not used. Hence 2986 cast to void. */ 2987 # define PERL_FPU_INIT (void)fpsetmask(0) 2988 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO) 2989 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN) 2990 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe); 2991 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); } 2992 # else 2993 # define PERL_FPU_INIT 2994 # endif 2995 #endif 2996 #ifndef PERL_FPU_PRE_EXEC 2997 # define PERL_FPU_PRE_EXEC { 2998 # define PERL_FPU_POST_EXEC } 2999 #endif 3000 3001 /* In Tru64 the cc -ieee enables the IEEE math but disables traps. 3002 * We need to reenable the "invalid" trap because otherwise generation 3003 * of NaN values leaves the IEEE fp flags in bad state, leaving any further 3004 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */ 3005 #ifdef __osf__ 3006 # include <machine/fpu.h> 3007 # define PERL_SYS_FPU_INIT \ 3008 STMT_START { \ 3009 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \ 3010 signal(SIGFPE, SIG_IGN); \ 3011 } STMT_END 3012 #endif 3013 /* In IRIX the default for Flush to Zero bit is true, 3014 * which means that results going below the minimum of normal 3015 * floating points go to zero, instead of going denormal/subnormal. 3016 * This is unlike almost any other system running Perl, so let's clear it. 3017 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally 3018 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits 3019 * 3020 * XXX The flush-to-zero behaviour should be a Configure scan. 3021 * To change the behaviour usually requires some system-specific 3022 * incantation, though, like the below. */ 3023 #ifdef __sgi 3024 # include <sys/fpu.h> 3025 # define PERL_SYS_FPU_INIT \ 3026 STMT_START { \ 3027 union fpc_csr csr; \ 3028 csr.fc_word = get_fpc_csr(); \ 3029 csr.fc_struct.flush = 0; \ 3030 set_fpc_csr(csr.fc_word); \ 3031 } STMT_END 3032 #endif 3033 3034 #ifndef PERL_SYS_FPU_INIT 3035 # define PERL_SYS_FPU_INIT NOOP 3036 #endif 3037 3038 #ifndef PERL_SYS_INIT3_BODY 3039 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp) 3040 #endif 3041 3042 /* 3043 =head1 Miscellaneous Functions 3044 3045 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv 3046 Provides system-specific tune up of the C runtime environment necessary to 3047 run Perl interpreters. This should be called only once, before creating 3048 any Perl interpreters. 3049 3050 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env 3051 Provides system-specific tune up of the C runtime environment necessary to 3052 run Perl interpreters. This should be called only once, before creating 3053 any Perl interpreters. 3054 3055 =for apidoc Am|void|PERL_SYS_TERM| 3056 Provides system-specific clean up of the C runtime environment after 3057 running Perl interpreters. This should be called only once, after 3058 freeing any remaining Perl interpreters. 3059 3060 =cut 3061 */ 3062 3063 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv) 3064 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env) 3065 #define PERL_SYS_TERM() Perl_sys_term() 3066 3067 #ifndef PERL_WRITE_MSG_TO_CONSOLE 3068 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len) 3069 #endif 3070 3071 #ifndef MAXPATHLEN 3072 # ifdef PATH_MAX 3073 # ifdef _POSIX_PATH_MAX 3074 # if PATH_MAX > _POSIX_PATH_MAX 3075 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX 3076 * included the null byte or not. Later amendments of POSIX, 3077 * XPG4, the Austin Group, and the Single UNIX Specification 3078 * all explicitly include the null byte in the PATH_MAX. 3079 * Ditto for _POSIX_PATH_MAX. */ 3080 # define MAXPATHLEN PATH_MAX 3081 # else 3082 # define MAXPATHLEN _POSIX_PATH_MAX 3083 # endif 3084 # else 3085 # define MAXPATHLEN (PATH_MAX+1) 3086 # endif 3087 # else 3088 # define MAXPATHLEN 1024 /* Err on the large side. */ 3089 # endif 3090 #endif 3091 3092 /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes 3093 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h> 3094 * this results in many functions being undeclared which bothers C++ 3095 * May make sense to have threads after "*ish.h" anyway 3096 */ 3097 3098 /* clang Thread Safety Analysis/Annotations/Attributes 3099 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html 3100 * 3101 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5). 3102 * Apple XCode hijacks __clang_major__ and __clang_minor__ 3103 * (6.1 means really clang 3.6), so needs extra hijinks 3104 * (could probably also test the contents of __apple_build_version__). 3105 */ 3106 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \ 3107 defined(__clang__) && \ 3108 !defined(PERL_GLOBAL_STRUCT) && \ 3109 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \ 3110 !defined(SWIG) && \ 3111 ((!defined(__apple_build_version__) && \ 3112 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \ 3113 (__clang_major__ >= 4))) || \ 3114 (defined(__apple_build_version__) && \ 3115 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \ 3116 (__clang_major__ >= 7)))) 3117 # define PERL_TSA__(x) __attribute__((x)) 3118 # define PERL_TSA_ACTIVE 3119 #else 3120 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */ 3121 # undef PERL_TSA_ACTIVE 3122 #endif 3123 3124 /* PERL_TSA_CAPABILITY() is used to annotate typedefs. 3125 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type; 3126 */ 3127 #define PERL_TSA_CAPABILITY(x) \ 3128 PERL_TSA__(capability(x)) 3129 3130 /* In the below examples the mutex must be lexically visible, usually 3131 * either as global variables, or as function arguments. */ 3132 3133 /* PERL_TSA_GUARDED_BY() is used to annotate global variables. 3134 * 3135 * Foo foo PERL_TSA_GUARDED_BY(mutex); 3136 */ 3137 #define PERL_TSA_GUARDED_BY(x) \ 3138 PERL_TSA__(guarded_by(x)) 3139 3140 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers. 3141 * The data _behind_ the pointer is guarded. 3142 * 3143 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex); 3144 */ 3145 #define PERL_TSA_PT_GUARDED_BY(x) \ 3146 PERL_TSA__(pt_guarded_by(x)) 3147 3148 /* PERL_TSA_REQUIRES() is used to annotate functions. 3149 * The caller MUST hold the resource when calling the function. 3150 * 3151 * void Foo() PERL_TSA_REQUIRES(mutex); 3152 */ 3153 #define PERL_TSA_REQUIRES(x) \ 3154 PERL_TSA__(requires_capability(x)) 3155 3156 /* PERL_TSA_EXCLUDES() is used to annotate functions. 3157 * The caller MUST NOT hold resource when calling the function. 3158 * 3159 * EXCLUDES should be used when the function first acquires 3160 * the resource and then releases it. Use to avoid deadlock. 3161 * 3162 * void Foo() PERL_TSA_EXCLUDES(mutex); 3163 */ 3164 #define PERL_TSA_EXCLUDES(x) \ 3165 PERL_TSA__(locks_excluded(x)) 3166 3167 /* PERL_TSA_ACQUIRE() is used to annotate functions. 3168 * The caller MUST NOT hold the resource when calling the function, 3169 * and the function will acquire the resource. 3170 * 3171 * void Foo() PERL_TSA_ACQUIRE(mutex); 3172 */ 3173 #define PERL_TSA_ACQUIRE(x) \ 3174 PERL_TSA__(acquire_capability(x)) 3175 3176 /* PERL_TSA_RELEASE() is used to annotate functions. 3177 * The caller MUST hold the resource when calling the function, 3178 * and the function will release the resource. 3179 * 3180 * void Foo() PERL_TSA_RELEASE(mutex); 3181 */ 3182 #define PERL_TSA_RELEASE(x) \ 3183 PERL_TSA__(release_capability(x)) 3184 3185 /* PERL_TSA_NO_TSA is used to annotate functions. 3186 * Used when being intentionally unsafe, or when the code is too 3187 * complicated for the analysis. Use sparingly. 3188 * 3189 * void Foo() PERL_TSA_NO_TSA; 3190 */ 3191 #define PERL_TSA_NO_TSA \ 3192 PERL_TSA__(no_thread_safety_analysis) 3193 3194 /* There are more annotations/attributes available, see the clang 3195 * documentation for details. */ 3196 3197 #if defined(USE_ITHREADS) 3198 # ifdef NETWARE 3199 # include <nw5thread.h> 3200 # elif defined(WIN32) 3201 # include <win32thread.h> 3202 # elif defined(OS2) 3203 # include "os2thread.h" 3204 # elif defined(I_MACH_CTHREADS) 3205 # include <mach/cthreads.h> 3206 typedef cthread_t perl_os_thread; 3207 typedef mutex_t perl_mutex; 3208 typedef condition_t perl_cond; 3209 typedef void * perl_key; 3210 # elif defined(I_PTHREAD) /* Posix threads */ 3211 # include <pthread.h> 3212 typedef pthread_t perl_os_thread; 3213 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex; 3214 typedef pthread_cond_t perl_cond; 3215 typedef pthread_key_t perl_key; 3216 # endif 3217 #endif /* USE_ITHREADS */ 3218 3219 #ifdef PERL_TSA_ACTIVE 3220 /* Since most pthread mutex interfaces have not been annotated, we 3221 * need to have these wrappers. The NO_TSA annotation is quite ugly 3222 * but it cannot be avoided in plain C, unlike in C++, where one could 3223 * e.g. use ACQUIRE() with no arg on a mutex lock method. 3224 * 3225 * The bodies of these wrappers are in util.c 3226 * 3227 * TODO: however, some platforms are starting to get these clang 3228 * thread safety annotations for pthreads, for example FreeBSD. 3229 * Do we need a way to a bypass these wrappers? */ 3230 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex) 3231 PERL_TSA_ACQUIRE(*mutex) 3232 PERL_TSA_NO_TSA; 3233 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex) 3234 PERL_TSA_RELEASE(*mutex) 3235 PERL_TSA_NO_TSA; 3236 #endif 3237 3238 #if defined(WIN32) 3239 # include "win32.h" 3240 #endif 3241 3242 #ifdef NETWARE 3243 # include "netware.h" 3244 #endif 3245 3246 #define STATUS_UNIX PL_statusvalue 3247 #ifdef VMS 3248 # define STATUS_NATIVE PL_statusvalue_vms 3249 /* 3250 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise 3251 * its contents can not be trusted. Unfortunately, Perl seems to check 3252 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should 3253 * be updated also. 3254 */ 3255 # include <stsdef.h> 3256 # include <ssdef.h> 3257 /* Presume this because if VMS changes it, it will require a new 3258 * set of APIs for waiting on children for binary compatibility. 3259 */ 3260 # define child_offset_bits (8) 3261 # ifndef C_FAC_POSIX 3262 # define C_FAC_POSIX 0x35A000 3263 # endif 3264 3265 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the 3266 * platform from the existing UNIX or Native status values. 3267 */ 3268 3269 # define STATUS_EXIT \ 3270 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \ 3271 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0)) 3272 3273 3274 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child 3275 * exit code and shifts the UNIX value over the correct number of bits to 3276 * be a child status. Usually the number of bits is 8, but that could be 3277 * platform dependent. The NATIVE status code is presumed to have either 3278 * from a child process. 3279 */ 3280 3281 /* This is complicated. The child processes return a true native VMS 3282 status which must be saved. But there is an assumption in Perl that 3283 the UNIX child status has some relationship to errno values, so 3284 Perl tries to translate it to text in some of the tests. 3285 In order to get the string translation correct, for the error, errno 3286 must be EVMSERR, but that generates a different text message 3287 than what the test programs are expecting. So an errno value must 3288 be derived from the native status value when an error occurs. 3289 That will hide the true native status message. With this version of 3290 perl, the true native child status can always be retrieved so that 3291 is not a problem. But in this case, Pl_statusvalue and errno may 3292 have different values in them. 3293 */ 3294 3295 # define STATUS_NATIVE_CHILD_SET(n) \ 3296 STMT_START { \ 3297 I32 evalue = (I32)n; \ 3298 if (evalue == EVMSERR) { \ 3299 PL_statusvalue_vms = vaxc$errno; \ 3300 PL_statusvalue = evalue; \ 3301 } else { \ 3302 PL_statusvalue_vms = evalue; \ 3303 if (evalue == -1) { \ 3304 PL_statusvalue = -1; \ 3305 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \ 3306 } else \ 3307 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \ 3308 set_vaxc_errno(evalue); \ 3309 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \ 3310 set_errno(EVMSERR); \ 3311 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \ 3312 PL_statusvalue = PL_statusvalue << child_offset_bits; \ 3313 } \ 3314 } STMT_END 3315 3316 # ifdef VMSISH_STATUS 3317 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX) 3318 # else 3319 # define STATUS_CURRENT STATUS_UNIX 3320 # endif 3321 3322 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update 3323 * the NATIVE status to an equivalent value. Can not be used to translate 3324 * exit code values as exit code values are not guaranteed to have any 3325 * relationship at all to errno values. 3326 * This is used when Perl is forcing errno to have a specific value. 3327 */ 3328 # define STATUS_UNIX_SET(n) \ 3329 STMT_START { \ 3330 I32 evalue = (I32)n; \ 3331 PL_statusvalue = evalue; \ 3332 if (PL_statusvalue != -1) { \ 3333 if (PL_statusvalue != EVMSERR) { \ 3334 PL_statusvalue &= 0xFFFF; \ 3335 if (MY_POSIX_EXIT) \ 3336 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\ 3337 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \ 3338 } \ 3339 else { \ 3340 PL_statusvalue_vms = vaxc$errno; \ 3341 } \ 3342 } \ 3343 else PL_statusvalue_vms = SS$_ABORT; \ 3344 set_vaxc_errno(PL_statusvalue_vms); \ 3345 } STMT_END 3346 3347 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets 3348 * the NATIVE error status based on it. 3349 * 3350 * When in the default mode to comply with the Perl VMS documentation, 3351 * 0 is a success and any other code sets the NATIVE status to a failure 3352 * code of SS$_ABORT. 3353 * 3354 * In the new POSIX EXIT mode, native status will be set so that the 3355 * actual exit code will can be retrieved by the calling program or 3356 * shell. 3357 * 3358 * If the exit code is not clearly a UNIX parent or child exit status, 3359 * it will be passed through as a VMS status. 3360 */ 3361 3362 # define STATUS_UNIX_EXIT_SET(n) \ 3363 STMT_START { \ 3364 I32 evalue = (I32)n; \ 3365 PL_statusvalue = evalue; \ 3366 if (MY_POSIX_EXIT) { \ 3367 if (evalue <= 0xFF00) { \ 3368 if (evalue > 0xFF) \ 3369 evalue = (evalue >> child_offset_bits) & 0xFF; \ 3370 PL_statusvalue_vms = \ 3371 (C_FAC_POSIX | (evalue << 3 ) | \ 3372 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \ 3373 } else /* forgive them Perl, for they have sinned */ \ 3374 PL_statusvalue_vms = evalue; \ 3375 } else { \ 3376 if (evalue == 0) \ 3377 PL_statusvalue_vms = SS$_NORMAL; \ 3378 else if (evalue <= 0xFF00) \ 3379 PL_statusvalue_vms = SS$_ABORT; \ 3380 else { /* forgive them Perl, for they have sinned */ \ 3381 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \ 3382 else PL_statusvalue_vms = vaxc$errno; \ 3383 /* And obviously used a VMS status value instead of UNIX */ \ 3384 PL_statusvalue = EVMSERR; \ 3385 } \ 3386 set_vaxc_errno(PL_statusvalue_vms); \ 3387 } \ 3388 } STMT_END 3389 3390 3391 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code 3392 * and sets the NATIVE error status based on it. This special case 3393 * is needed to maintain compatibility with past VMS behavior. 3394 * 3395 * In the default mode on VMS, this number is passed through as 3396 * both the NATIVE and UNIX status. Which makes it different 3397 * that the STATUS_UNIX_EXIT_SET. 3398 * 3399 * In the new POSIX EXIT mode, native status will be set so that the 3400 * actual exit code will can be retrieved by the calling program or 3401 * shell. 3402 * 3403 * A POSIX exit code is from 0 to 255. If the exit code is higher 3404 * than this, it needs to be assumed that it is a VMS exit code and 3405 * passed through. 3406 */ 3407 3408 # define STATUS_EXIT_SET(n) \ 3409 STMT_START { \ 3410 I32 evalue = (I32)n; \ 3411 PL_statusvalue = evalue; \ 3412 if (MY_POSIX_EXIT) \ 3413 if (evalue > 255) PL_statusvalue_vms = evalue; else { \ 3414 PL_statusvalue_vms = \ 3415 (C_FAC_POSIX | (evalue << 3 ) | \ 3416 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \ 3417 else \ 3418 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \ 3419 set_vaxc_errno(PL_statusvalue_vms); \ 3420 } STMT_END 3421 3422 3423 /* This macro forces a success status */ 3424 # define STATUS_ALL_SUCCESS \ 3425 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL) 3426 3427 /* This macro forces a failure status */ 3428 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \ 3429 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \ 3430 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT) 3431 3432 #elif defined(__amigaos4__) 3433 /* A somewhat experimental attempt to simulate posix return code values */ 3434 # define STATUS_NATIVE PL_statusvalue_posix 3435 # define STATUS_NATIVE_CHILD_SET(n) \ 3436 STMT_START { \ 3437 PL_statusvalue_posix = (n); \ 3438 if (PL_statusvalue_posix < 0) { \ 3439 PL_statusvalue = -1; \ 3440 } \ 3441 else { \ 3442 PL_statusvalue = n << 8; \ 3443 } \ 3444 } STMT_END 3445 # define STATUS_UNIX_SET(n) \ 3446 STMT_START { \ 3447 PL_statusvalue = (n); \ 3448 if (PL_statusvalue != -1) \ 3449 PL_statusvalue &= 0xFFFF; \ 3450 } STMT_END 3451 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n) 3452 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n) 3453 # define STATUS_CURRENT STATUS_UNIX 3454 # define STATUS_EXIT STATUS_UNIX 3455 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0) 3456 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1) 3457 3458 #else 3459 # define STATUS_NATIVE PL_statusvalue_posix 3460 # if defined(WCOREDUMP) 3461 # define STATUS_NATIVE_CHILD_SET(n) \ 3462 STMT_START { \ 3463 PL_statusvalue_posix = (n); \ 3464 if (PL_statusvalue_posix == -1) \ 3465 PL_statusvalue = -1; \ 3466 else { \ 3467 PL_statusvalue = \ 3468 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \ 3469 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \ 3470 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \ 3471 } \ 3472 } STMT_END 3473 # elif defined(WIFEXITED) 3474 # define STATUS_NATIVE_CHILD_SET(n) \ 3475 STMT_START { \ 3476 PL_statusvalue_posix = (n); \ 3477 if (PL_statusvalue_posix == -1) \ 3478 PL_statusvalue = -1; \ 3479 else { \ 3480 PL_statusvalue = \ 3481 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \ 3482 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \ 3483 } \ 3484 } STMT_END 3485 # else 3486 # define STATUS_NATIVE_CHILD_SET(n) \ 3487 STMT_START { \ 3488 PL_statusvalue_posix = (n); \ 3489 if (PL_statusvalue_posix == -1) \ 3490 PL_statusvalue = -1; \ 3491 else { \ 3492 PL_statusvalue = \ 3493 PL_statusvalue_posix & 0xFFFF; \ 3494 } \ 3495 } STMT_END 3496 # endif 3497 # define STATUS_UNIX_SET(n) \ 3498 STMT_START { \ 3499 PL_statusvalue = (n); \ 3500 if (PL_statusvalue != -1) \ 3501 PL_statusvalue &= 0xFFFF; \ 3502 } STMT_END 3503 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n) 3504 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n) 3505 # define STATUS_CURRENT STATUS_UNIX 3506 # define STATUS_EXIT STATUS_UNIX 3507 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0) 3508 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1) 3509 #endif 3510 3511 /* flags in PL_exit_flags for nature of exit() */ 3512 #define PERL_EXIT_EXPECTED 0x01 3513 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */ 3514 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */ 3515 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */ 3516 3517 #ifndef PERL_CORE 3518 /* format to use for version numbers in file/directory names */ 3519 /* XXX move to Configure? */ 3520 /* This was only ever used for the current version, and that can be done at 3521 compile time, as PERL_FS_VERSION, so should we just delete it? */ 3522 # ifndef PERL_FS_VER_FMT 3523 # define PERL_FS_VER_FMT "%d.%d.%d" 3524 # endif 3525 #endif 3526 3527 #ifndef PERL_FS_VERSION 3528 # define PERL_FS_VERSION PERL_VERSION_STRING 3529 #endif 3530 3531 /* This defines a way to flush all output buffers. This may be a 3532 * performance issue, so we allow people to disable it. Also, if 3533 * we are using stdio, there are broken implementations of fflush(NULL) 3534 * out there, Solaris being the most prominent. 3535 */ 3536 #ifndef PERL_FLUSHALL_FOR_CHILD 3537 # if defined(USE_PERLIO) || defined(FFLUSH_NULL) 3538 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL) 3539 # elif defined(FFLUSH_ALL) 3540 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all() 3541 # else 3542 # define PERL_FLUSHALL_FOR_CHILD NOOP 3543 # endif 3544 #endif 3545 3546 #ifndef PERL_WAIT_FOR_CHILDREN 3547 # define PERL_WAIT_FOR_CHILDREN NOOP 3548 #endif 3549 3550 /* the traditional thread-unsafe notion of "current interpreter". */ 3551 #ifndef PERL_SET_INTERP 3552 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i)) 3553 #endif 3554 3555 #ifndef PERL_GET_INTERP 3556 # define PERL_GET_INTERP (PL_curinterp) 3557 #endif 3558 3559 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX) 3560 # ifdef MULTIPLICITY 3561 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT) 3562 # endif 3563 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t) 3564 #endif 3565 3566 /* 3567 This replaces the previous %_ "hack" by the "%p" hacks. 3568 All that is required is that the perl source does not 3569 use "%-p" or "%-<number>p" or "%<number>p" formats. 3570 These formats will still work in perl code. 3571 See comments in sv.c for further details. 3572 3573 Robin Barker 2005-07-14 3574 3575 No longer use %1p for VDf = %vd. RMB 2007-10-19 3576 */ 3577 3578 #ifndef SVf_ 3579 # define SVf_(n) "-" STRINGIFY(n) "p" 3580 #endif 3581 3582 #ifndef SVf 3583 # define SVf "-p" 3584 #endif 3585 3586 #ifndef SVf32 3587 # define SVf32 SVf_(32) 3588 #endif 3589 3590 #ifndef SVf256 3591 # define SVf256 SVf_(256) 3592 #endif 3593 3594 #define SVfARG(p) ((void*)(p)) 3595 3596 #ifndef HEKf 3597 # define HEKf "2p" 3598 #endif 3599 3600 /* Not ideal, but we cannot easily include a number in an already-numeric 3601 * format sequence. */ 3602 #ifndef HEKf256 3603 # define HEKf256 "3p" 3604 #endif 3605 3606 #define HEKfARG(p) ((void*)(p)) 3607 3608 /* 3609 =for apidoc Amnh||UTF8f 3610 =for apidoc Amh||UTF8fARG|bool is_utf8|Size_t byte_len|char *str 3611 3612 =cut 3613 * %4p is a custom format 3614 */ 3615 #ifndef UTF8f 3616 # define UTF8f "d%" UVuf "%4p" 3617 #endif 3618 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p) 3619 3620 #define PNf UTF8f 3621 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn) 3622 3623 #ifdef PERL_CORE 3624 /* not used; but needed for backward compatibility with XS code? - RMB */ 3625 # undef UVf 3626 #elif !defined(UVf) 3627 # define UVf UVuf 3628 #endif 3629 3630 #if !defined(DEBUGGING) && !defined(NDEBUG) 3631 # define NDEBUG 1 3632 #endif 3633 #include <assert.h> 3634 3635 /* For functions that are marked as __attribute__noreturn__, it's not 3636 appropriate to call return. In either case, include the lint directive. 3637 */ 3638 #ifdef HASATTRIBUTE_NORETURN 3639 # define NORETURN_FUNCTION_END NOT_REACHED; 3640 #else 3641 # define NORETURN_FUNCTION_END NOT_REACHED; return 0 3642 #endif 3643 3644 #ifdef HAS_BUILTIN_EXPECT 3645 # define EXPECT(expr,val) __builtin_expect(expr,val) 3646 #else 3647 # define EXPECT(expr,val) (expr) 3648 #endif 3649 3650 /* 3651 =head1 Miscellaneous Functions 3652 3653 =for apidoc AmU|bool|LIKELY|const bool expr 3654 3655 Returns the input unchanged, but at the same time it gives a branch prediction 3656 hint to the compiler that this condition is likely to be true. 3657 3658 =for apidoc AmU|bool|UNLIKELY|const bool expr 3659 3660 Returns the input unchanged, but at the same time it gives a branch prediction 3661 hint to the compiler that this condition is likely to be false. 3662 3663 =cut 3664 */ 3665 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE) 3666 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE) 3667 3668 #ifdef HAS_BUILTIN_CHOOSE_EXPR 3669 /* placeholder */ 3670 #endif 3671 3672 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile 3673 time invariants. That is, their argument must be a constant expression that 3674 can be verified by the compiler. This expression can contain anything that's 3675 known to the compiler, e.g. #define constants, enums, or sizeof (...). If 3676 the expression evaluates to 0, compilation fails. 3677 Because they generate no runtime code (i.e. their use is "free"), they're 3678 always active, even under non-DEBUGGING builds. 3679 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at 3680 file scope (outside of any function). 3681 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a 3682 function. 3683 */ 3684 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \ 3685 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \ 3686 || (__STDC_VERSION__ - 0) >= 201101L)) \ 3687 || (defined(__cplusplus) && __cplusplus >= 201103L)) 3688 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler 3689 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no 3690 matter what <assert.h> says. 3691 */ 3692 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND) 3693 #else 3694 /* We use a bit-field instead of an array because gcc accepts 3695 'typedef char x[n]' where n is not a compile-time constant. 3696 We want to enforce constantness. 3697 */ 3698 # define STATIC_ASSERT_2(COND, SUFFIX) \ 3699 typedef struct { \ 3700 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \ 3701 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL 3702 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX) 3703 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__) 3704 #endif 3705 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an 3706 error (static_assert is a declaration, and only statements can have labels). 3707 */ 3708 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END 3709 3710 #ifndef __has_builtin 3711 # define __has_builtin(x) 0 /* not a clang style compiler */ 3712 #endif 3713 3714 /* ASSUME is like assert(), but it has a benefit in a release build. It is a 3715 hint to a compiler about a statement of fact in a function call free 3716 expression, which allows the compiler to generate better machine code. 3717 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means 3718 the control path is unreachable. In a for loop, ASSUME can be used to hint 3719 that a loop will run at least X times. ASSUME is based off MSVC's __assume 3720 intrinsic function, see its documents for more details. 3721 */ 3722 3723 #ifndef DEBUGGING 3724 # if __has_builtin(__builtin_unreachable) \ 3725 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */ 3726 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable()) 3727 # elif defined(_MSC_VER) 3728 # define ASSUME(x) __assume(x) 3729 # elif defined(__ARMCC_VERSION) /* untested */ 3730 # define ASSUME(x) __promise(x) 3731 # else 3732 /* a random compiler might define assert to its own special optimization token 3733 so pass it through to C lib as a last resort */ 3734 # define ASSUME(x) assert(x) 3735 # endif 3736 #else 3737 # define ASSUME(x) assert(x) 3738 #endif 3739 3740 #if defined(__sun) /* ASSUME() generates warnings on Solaris */ 3741 # define NOT_REACHED 3742 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \ 3743 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */ 3744 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END 3745 #else 3746 # define NOT_REACHED ASSUME(!"UNREACHABLE") 3747 #endif 3748 3749 /* Some unistd.h's give a prototype for pause() even though 3750 HAS_PAUSE ends up undefined. This causes the #define 3751 below to be rejected by the compiler. Sigh. 3752 */ 3753 #ifdef HAS_PAUSE 3754 #define Pause pause 3755 #else 3756 #define Pause() sleep((32767<<16)+32767) 3757 #endif 3758 3759 #ifndef IOCPARM_LEN 3760 # ifdef IOCPARM_MASK 3761 /* on BSDish systems we're safe */ 3762 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK) 3763 # elif defined(_IOC_SIZE) && defined(__GLIBC__) 3764 /* on Linux systems we're safe; except when we're not [perl #38223] */ 3765 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x)) 3766 # else 3767 /* otherwise guess at what's safe */ 3768 # define IOCPARM_LEN(x) 256 3769 # endif 3770 #endif 3771 3772 #if defined(__CYGWIN__) 3773 /* USEMYBINMODE 3774 * This symbol, if defined, indicates that the program should 3775 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure 3776 * that a file is in "binary" mode -- that is, that no translation 3777 * of bytes occurs on read or write operations. 3778 */ 3779 # define USEMYBINMODE /**/ 3780 # include <io.h> /* for setmode() prototype */ 3781 # define my_binmode(fp, iotype, mode) \ 3782 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1) 3783 #endif 3784 3785 #ifdef __CYGWIN__ 3786 void init_os_extras(void); 3787 #endif 3788 3789 #ifdef UNION_ANY_DEFINITION 3790 UNION_ANY_DEFINITION; 3791 #else 3792 union any { 3793 void* any_ptr; 3794 SV* any_sv; 3795 SV** any_svp; 3796 GV* any_gv; 3797 AV* any_av; 3798 HV* any_hv; 3799 OP* any_op; 3800 char* any_pv; 3801 char** any_pvp; 3802 I32 any_i32; 3803 U32 any_u32; 3804 IV any_iv; 3805 UV any_uv; 3806 long any_long; 3807 bool any_bool; 3808 void (*any_dptr) (void*); 3809 void (*any_dxptr) (pTHX_ void*); 3810 }; 3811 #endif 3812 3813 typedef I32 (*filter_t) (pTHX_ int, SV *, int); 3814 3815 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len) 3816 #define FILTER_DATA(idx) \ 3817 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL) 3818 #define FILTER_ISREADER(idx) \ 3819 (PL_parser && PL_parser->rsfp_filters \ 3820 && idx >= AvFILLp(PL_parser->rsfp_filters)) 3821 #define PERL_FILTER_EXISTS(i) \ 3822 (PL_parser && PL_parser->rsfp_filters \ 3823 && (i) <= av_tindex(PL_parser->rsfp_filters)) 3824 3825 #if defined(_AIX) && !defined(_AIX43) 3826 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE) 3827 /* We cannot include <crypt.h> to get the struct crypt_data 3828 * because of setkey prototype problems when threading */ 3829 typedef struct crypt_data { /* straight from /usr/include/crypt.h */ 3830 /* From OSF, Not needed in AIX 3831 char C[28], D[28]; 3832 */ 3833 char E[48]; 3834 char KS[16][48]; 3835 char block[66]; 3836 char iobuf[16]; 3837 } CRYPTD; 3838 #endif /* threading */ 3839 #endif /* AIX */ 3840 3841 #ifndef PERL_CALLCONV 3842 # ifdef __cplusplus 3843 # define PERL_CALLCONV extern "C" 3844 # else 3845 # define PERL_CALLCONV 3846 # endif 3847 #endif 3848 #ifndef PERL_CALLCONV_NO_RET 3849 # define PERL_CALLCONV_NO_RET PERL_CALLCONV 3850 #endif 3851 3852 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that 3853 dont have a noreturn as a declaration specifier 3854 */ 3855 #ifndef PERL_STATIC_NO_RET 3856 # define PERL_STATIC_NO_RET STATIC 3857 #endif 3858 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on 3859 builds that dont have a noreturn as a declaration specifier 3860 */ 3861 #ifndef PERL_STATIC_INLINE_NO_RET 3862 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE 3863 #endif 3864 3865 #ifndef PERL_STATIC_FORCE_INLINE 3866 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE 3867 #endif 3868 3869 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET 3870 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE 3871 #endif 3872 3873 #if !defined(OS2) 3874 # include "iperlsys.h" 3875 #endif 3876 3877 #ifdef __LIBCATAMOUNT__ 3878 #undef HAS_PASSWD /* unixish.h but not unixish enough. */ 3879 #undef HAS_GROUP 3880 #define FAKE_BIT_BUCKET 3881 #endif 3882 3883 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0. 3884 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by 3885 * Configure, despite their names being similar to other defines like 3886 * USE_ITHREADS. Configure in fact knows nothing about the randomised 3887 * hashes. Therefore to enable/disable the hash randomisation defines 3888 * use the Configure -Accflags=... instead. */ 3889 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) 3890 # define USE_HASH_SEED 3891 #endif 3892 3893 #include "perly.h" 3894 3895 3896 /* macros to define bit-fields in structs. */ 3897 #ifndef PERL_BITFIELD8 3898 # define PERL_BITFIELD8 U8 3899 #endif 3900 #ifndef PERL_BITFIELD16 3901 # define PERL_BITFIELD16 U16 3902 #endif 3903 #ifndef PERL_BITFIELD32 3904 # define PERL_BITFIELD32 U32 3905 #endif 3906 3907 #include "sv.h" 3908 #include "regexp.h" 3909 #include "util.h" 3910 #include "form.h" 3911 #include "gv.h" 3912 #include "pad.h" 3913 #include "cv.h" 3914 #include "opnames.h" 3915 #include "op.h" 3916 #include "hv.h" 3917 #include "cop.h" 3918 #include "av.h" 3919 #include "mg.h" 3920 #include "scope.h" 3921 #include "warnings.h" 3922 #include "utf8.h" 3923 3924 /* these would be in doio.h if there was such a file */ 3925 #define my_stat() my_stat_flags(SV_GMAGIC) 3926 #define my_lstat() my_lstat_flags(SV_GMAGIC) 3927 3928 /* defined in sv.c, but also used in [ach]v.c */ 3929 #undef _XPV_HEAD 3930 #undef _XPVMG_HEAD 3931 #undef _XPVCV_COMMON 3932 3933 #include "parser.h" 3934 3935 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */ 3936 3937 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C) 3938 3939 /* These have to be predeclared, as they are used in proto.h which is #included 3940 * before their definitions in regcomp.h. */ 3941 3942 struct scan_data_t; 3943 typedef struct regnode_charclass regnode_charclass; 3944 3945 /* A hopefully less confusing name. The sub-classes are all Posix classes only 3946 * used under /l matching */ 3947 typedef struct regnode_charclass_posixl regnode_charclass_class; 3948 typedef struct regnode_charclass_posixl regnode_charclass_posixl; 3949 3950 typedef struct regnode_ssc regnode_ssc; 3951 typedef struct RExC_state_t RExC_state_t; 3952 struct _reg_trie_data; 3953 3954 #endif 3955 3956 struct ptr_tbl_ent { 3957 struct ptr_tbl_ent* next; 3958 const void* oldval; 3959 void* newval; 3960 }; 3961 3962 struct ptr_tbl { 3963 struct ptr_tbl_ent** tbl_ary; 3964 UV tbl_max; 3965 UV tbl_items; 3966 struct ptr_tbl_arena *tbl_arena; 3967 struct ptr_tbl_ent *tbl_arena_next; 3968 struct ptr_tbl_ent *tbl_arena_end; 3969 }; 3970 3971 #if defined(htonl) && !defined(HAS_HTONL) 3972 #define HAS_HTONL 3973 #endif 3974 #if defined(htons) && !defined(HAS_HTONS) 3975 #define HAS_HTONS 3976 #endif 3977 #if defined(ntohl) && !defined(HAS_NTOHL) 3978 #define HAS_NTOHL 3979 #endif 3980 #if defined(ntohs) && !defined(HAS_NTOHS) 3981 #define HAS_NTOHS 3982 #endif 3983 #ifndef HAS_HTONL 3984 #define HAS_HTONS 3985 #define HAS_HTONL 3986 #define HAS_NTOHS 3987 #define HAS_NTOHL 3988 # if (BYTEORDER & 0xffff) == 0x4321 3989 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to 3990 re-order their values. However, to behave identically to the alternative 3991 implementations, they should truncate to the correct size. */ 3992 # define ntohl(x) ((x)&0xFFFFFFFF) 3993 # define htonl(x) ntohl(x) 3994 # define ntohs(x) ((x)&0xFFFF) 3995 # define htons(x) ntohs(x) 3996 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 3997 3998 /* Note that we can't straight out declare our own htonl and htons because 3999 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl, 4000 to avoid the overhead of initialising the socket subsystem, but the headers 4001 that *declare* the various functions are still seen. If we declare our own 4002 htonl etc they will clash with the declarations in the Win32 headers. */ 4003 4004 PERL_STATIC_INLINE U32 4005 my_swap32(const U32 x) { 4006 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF) 4007 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8); 4008 } 4009 4010 PERL_STATIC_INLINE U16 4011 my_swap16(const U16 x) { 4012 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF); 4013 } 4014 4015 # define htonl(x) my_swap32(x) 4016 # define ntohl(x) my_swap32(x) 4017 # define ntohs(x) my_swap16(x) 4018 # define htons(x) my_swap16(x) 4019 # else 4020 # error "Unsupported byteorder" 4021 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of 4022 the error message. Please check the value of the macro BYTEORDER, as defined 4023 in config.h. The values of BYTEORDER we expect are 4024 4025 big endian little endian 4026 32 bit 0x4321 0x1234 4027 64 bit 0x87654321 0x12345678 4028 4029 If you have a system with a different byte order, please see 4030 pod/perlhack.pod for how to submit a patch to add supporting code. 4031 */ 4032 # endif 4033 #endif 4034 4035 /* 4036 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. 4037 * -DWS 4038 */ 4039 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 4040 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to 4041 re-order their values. However, to behave identically to the alternative 4042 implementations, they should truncate to the correct size. */ 4043 # define vtohl(x) ((x)&0xFFFFFFFF) 4044 # define vtohs(x) ((x)&0xFFFF) 4045 # define htovl(x) vtohl(x) 4046 # define htovs(x) vtohs(x) 4047 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 4048 # define vtohl(x) ((((x)&0xFF)<<24) \ 4049 +(((x)>>24)&0xFF) \ 4050 +(((x)&0x0000FF00)<<8) \ 4051 +(((x)&0x00FF0000)>>8) ) 4052 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF)) 4053 # define htovl(x) vtohl(x) 4054 # define htovs(x) vtohs(x) 4055 #else 4056 # error "Unsupported byteorder" 4057 /* If you have need for current perl on PDP-11 or similar, and can help test 4058 that blead keeps working on a mixed-endian system, then see 4059 pod/perlhack.pod for how to submit patches to things working again. */ 4060 #endif 4061 4062 /* *MAX Plus 1. A floating point value. 4063 Hopefully expressed in a way that dodgy floating point can't mess up. 4064 >> 2 rather than 1, so that value is safely less than I32_MAX after 1 4065 is added to it 4066 May find that some broken compiler will want the value cast to I32. 4067 [after the shift, as signed >> may not be as secure as unsigned >>] 4068 */ 4069 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1))) 4070 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2))) 4071 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or 4072 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV) 4073 may be greater than sizeof(IV), so don't assume that half max UV is max IV. 4074 */ 4075 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2))) 4076 4077 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2))) 4078 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1))) 4079 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2))) 4080 4081 /* This may look like unnecessary jumping through hoops, but converting 4082 out of range floating point values to integers *is* undefined behaviour, 4083 and it is starting to bite. 4084 */ 4085 #ifndef CAST_INLINE 4086 #define I_32(what) (cast_i32((NV)(what))) 4087 #define U_32(what) (cast_ulong((NV)(what))) 4088 #define I_V(what) (cast_iv((NV)(what))) 4089 #define U_V(what) (cast_uv((NV)(what))) 4090 #else 4091 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \ 4092 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \ 4093 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */))) 4094 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \ 4095 : ((n) < U32_MAX_P1 ? (U32) (n) \ 4096 : ((n) > 0 ? U32_MAX : 0 /* NaN */))) 4097 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \ 4098 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \ 4099 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */))) 4100 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \ 4101 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \ 4102 : ((n) > 0 ? UV_MAX : 0 /* NaN */))) 4103 #endif 4104 4105 #define U_S(what) ((U16)U_32(what)) 4106 #define U_I(what) ((unsigned int)U_32(what)) 4107 #define U_L(what) U_32(what) 4108 4109 #ifdef HAS_SIGNBIT 4110 # ifndef Perl_signbit 4111 # define Perl_signbit signbit 4112 # endif 4113 #endif 4114 4115 /* These do not care about the fractional part, only about the range. */ 4116 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX) 4117 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX) 4118 4119 /* Used with UV/IV arguments: */ 4120 /* XXXX: need to speed it up */ 4121 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv)) 4122 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv)) 4123 4124 #ifndef MAXSYSFD 4125 # define MAXSYSFD 2 4126 #endif 4127 4128 #ifndef __cplusplus 4129 #if !(defined(WIN32) || defined(SYMBIAN)) 4130 Uid_t getuid (void); 4131 Uid_t geteuid (void); 4132 Gid_t getgid (void); 4133 Gid_t getegid (void); 4134 #endif 4135 #endif 4136 4137 #ifndef Perl_debug_log 4138 # define Perl_debug_log PerlIO_stderr() 4139 #endif 4140 4141 #ifndef Perl_error_log 4142 # define Perl_error_log (PL_stderrgv \ 4143 && isGV(PL_stderrgv) \ 4144 && GvIOp(PL_stderrgv) \ 4145 && IoOFP(GvIOp(PL_stderrgv)) \ 4146 ? IoOFP(GvIOp(PL_stderrgv)) \ 4147 : PerlIO_stderr()) 4148 #endif 4149 4150 4151 #define DEBUG_p_FLAG 0x00000001 /* 1 */ 4152 #define DEBUG_s_FLAG 0x00000002 /* 2 */ 4153 #define DEBUG_l_FLAG 0x00000004 /* 4 */ 4154 #define DEBUG_t_FLAG 0x00000008 /* 8 */ 4155 #define DEBUG_o_FLAG 0x00000010 /* 16 */ 4156 #define DEBUG_c_FLAG 0x00000020 /* 32 */ 4157 #define DEBUG_P_FLAG 0x00000040 /* 64 */ 4158 #define DEBUG_m_FLAG 0x00000080 /* 128 */ 4159 #define DEBUG_f_FLAG 0x00000100 /* 256 */ 4160 #define DEBUG_r_FLAG 0x00000200 /* 512 */ 4161 #define DEBUG_x_FLAG 0x00000400 /* 1024 */ 4162 #define DEBUG_u_FLAG 0x00000800 /* 2048 */ 4163 /* U is reserved for Unofficial, exploratory hacking */ 4164 #define DEBUG_U_FLAG 0x00001000 /* 4096 */ 4165 /* spare 8192 */ 4166 #define DEBUG_X_FLAG 0x00004000 /* 16384 */ 4167 #define DEBUG_D_FLAG 0x00008000 /* 32768 */ 4168 #define DEBUG_S_FLAG 0x00010000 /* 65536 */ 4169 #define DEBUG_T_FLAG 0x00020000 /* 131072 */ 4170 #define DEBUG_R_FLAG 0x00040000 /* 262144 */ 4171 #define DEBUG_J_FLAG 0x00080000 /* 524288 */ 4172 #define DEBUG_v_FLAG 0x00100000 /*1048576 */ 4173 #define DEBUG_C_FLAG 0x00200000 /*2097152 */ 4174 #define DEBUG_A_FLAG 0x00400000 /*4194304 */ 4175 #define DEBUG_q_FLAG 0x00800000 /*8388608 */ 4176 #define DEBUG_M_FLAG 0x01000000 /*16777216*/ 4177 #define DEBUG_B_FLAG 0x02000000 /*33554432*/ 4178 #define DEBUG_L_FLAG 0x04000000 /*67108864*/ 4179 #define DEBUG_i_FLAG 0x08000000 /*134217728*/ 4180 #define DEBUG_y_FLAG 0x10000000 /*268435456*/ 4181 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */ 4182 4183 #define DEBUG_DB_RECURSE_FLAG 0x40000000 4184 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */ 4185 4186 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG) 4187 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG) 4188 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG) 4189 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG) 4190 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG) 4191 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG) 4192 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG) 4193 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG) 4194 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG) 4195 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG) 4196 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG) 4197 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG) 4198 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG) 4199 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG) 4200 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG) 4201 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG) 4202 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG) 4203 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG) 4204 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG) 4205 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG) 4206 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG) 4207 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG) 4208 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG) 4209 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG) 4210 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG) 4211 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG) 4212 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG) 4213 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG) 4214 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_) 4215 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_) 4216 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_) 4217 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_) 4218 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_) 4219 4220 #ifdef DEBUGGING 4221 4222 # define DEBUG_p_TEST DEBUG_p_TEST_ 4223 # define DEBUG_s_TEST DEBUG_s_TEST_ 4224 # define DEBUG_l_TEST DEBUG_l_TEST_ 4225 # define DEBUG_t_TEST DEBUG_t_TEST_ 4226 # define DEBUG_o_TEST DEBUG_o_TEST_ 4227 # define DEBUG_c_TEST DEBUG_c_TEST_ 4228 # define DEBUG_P_TEST DEBUG_P_TEST_ 4229 # define DEBUG_m_TEST DEBUG_m_TEST_ 4230 # define DEBUG_f_TEST DEBUG_f_TEST_ 4231 # define DEBUG_r_TEST DEBUG_r_TEST_ 4232 # define DEBUG_x_TEST DEBUG_x_TEST_ 4233 # define DEBUG_u_TEST DEBUG_u_TEST_ 4234 # define DEBUG_U_TEST DEBUG_U_TEST_ 4235 # define DEBUG_X_TEST DEBUG_X_TEST_ 4236 # define DEBUG_D_TEST DEBUG_D_TEST_ 4237 # define DEBUG_S_TEST DEBUG_S_TEST_ 4238 # define DEBUG_T_TEST DEBUG_T_TEST_ 4239 # define DEBUG_R_TEST DEBUG_R_TEST_ 4240 # define DEBUG_J_TEST DEBUG_J_TEST_ 4241 # define DEBUG_v_TEST DEBUG_v_TEST_ 4242 # define DEBUG_C_TEST DEBUG_C_TEST_ 4243 # define DEBUG_A_TEST DEBUG_A_TEST_ 4244 # define DEBUG_q_TEST DEBUG_q_TEST_ 4245 # define DEBUG_M_TEST DEBUG_M_TEST_ 4246 # define DEBUG_B_TEST DEBUG_B_TEST_ 4247 # define DEBUG_L_TEST DEBUG_L_TEST_ 4248 # define DEBUG_i_TEST DEBUG_i_TEST_ 4249 # define DEBUG_y_TEST DEBUG_y_TEST_ 4250 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_ 4251 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_ 4252 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_ 4253 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_ 4254 # define DEBUG_yv_TEST DEBUG_yv_TEST_ 4255 4256 # define PERL_DEB(a) a 4257 # define PERL_DEB2(a,b) a 4258 # define PERL_DEBUG(a) if (PL_debug) a 4259 # define DEBUG_p(a) if (DEBUG_p_TEST) a 4260 # define DEBUG_s(a) if (DEBUG_s_TEST) a 4261 # define DEBUG_l(a) if (DEBUG_l_TEST) a 4262 # define DEBUG_t(a) if (DEBUG_t_TEST) a 4263 # define DEBUG_o(a) if (DEBUG_o_TEST) a 4264 # define DEBUG_c(a) if (DEBUG_c_TEST) a 4265 # define DEBUG_P(a) if (DEBUG_P_TEST) a 4266 4267 /* Temporarily turn off memory debugging in case the a 4268 * does memory allocation, either directly or indirectly. */ 4269 # define DEBUG_m(a) \ 4270 STMT_START { \ 4271 if (PERL_GET_INTERP) { \ 4272 dTHX; \ 4273 if (DEBUG_m_TEST) { \ 4274 PL_debug &= ~DEBUG_m_FLAG; \ 4275 a; \ 4276 PL_debug |= DEBUG_m_FLAG; \ 4277 } \ 4278 } \ 4279 } STMT_END 4280 4281 # define DEBUG__(t, a) \ 4282 STMT_START { \ 4283 if (t) STMT_START {a;} STMT_END; \ 4284 } STMT_END 4285 4286 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a) 4287 4288 /* For re_comp.c, re_exec.c, assume -Dr has been specified */ 4289 # ifdef PERL_EXT_RE_BUILD 4290 # define DEBUG_r(a) STMT_START {a;} STMT_END 4291 # else 4292 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a) 4293 # endif /* PERL_EXT_RE_BUILD */ 4294 4295 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a) 4296 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a) 4297 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a) 4298 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a) 4299 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a) 4300 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a) 4301 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a) 4302 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a) 4303 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a) 4304 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a) 4305 4306 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a) 4307 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a) 4308 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a) 4309 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a) 4310 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a) 4311 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a) 4312 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a) 4313 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a) 4314 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a) 4315 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a) 4316 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a) 4317 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a) 4318 4319 #else /* ! DEBUGGING below */ 4320 4321 # define DEBUG_p_TEST (0) 4322 # define DEBUG_s_TEST (0) 4323 # define DEBUG_l_TEST (0) 4324 # define DEBUG_t_TEST (0) 4325 # define DEBUG_o_TEST (0) 4326 # define DEBUG_c_TEST (0) 4327 # define DEBUG_P_TEST (0) 4328 # define DEBUG_m_TEST (0) 4329 # define DEBUG_f_TEST (0) 4330 # define DEBUG_r_TEST (0) 4331 # define DEBUG_x_TEST (0) 4332 # define DEBUG_u_TEST (0) 4333 # define DEBUG_U_TEST (0) 4334 # define DEBUG_X_TEST (0) 4335 # define DEBUG_D_TEST (0) 4336 # define DEBUG_S_TEST (0) 4337 # define DEBUG_T_TEST (0) 4338 # define DEBUG_R_TEST (0) 4339 # define DEBUG_J_TEST (0) 4340 # define DEBUG_v_TEST (0) 4341 # define DEBUG_C_TEST (0) 4342 # define DEBUG_A_TEST (0) 4343 # define DEBUG_q_TEST (0) 4344 # define DEBUG_M_TEST (0) 4345 # define DEBUG_B_TEST (0) 4346 # define DEBUG_L_TEST (0) 4347 # define DEBUG_i_TEST (0) 4348 # define DEBUG_y_TEST (0) 4349 # define DEBUG_Xv_TEST (0) 4350 # define DEBUG_Uv_TEST (0) 4351 # define DEBUG_Pv_TEST (0) 4352 # define DEBUG_Lv_TEST (0) 4353 # define DEBUG_yv_TEST (0) 4354 4355 # define PERL_DEB(a) 4356 # define PERL_DEB2(a,b) b 4357 # define PERL_DEBUG(a) 4358 # define DEBUG_p(a) 4359 # define DEBUG_s(a) 4360 # define DEBUG_l(a) 4361 # define DEBUG_t(a) 4362 # define DEBUG_o(a) 4363 # define DEBUG_c(a) 4364 # define DEBUG_P(a) 4365 # define DEBUG_m(a) 4366 # define DEBUG_f(a) 4367 # define DEBUG_r(a) 4368 # define DEBUG_x(a) 4369 # define DEBUG_u(a) 4370 # define DEBUG_U(a) 4371 # define DEBUG_X(a) 4372 # define DEBUG_D(a) 4373 # define DEBUG_S(a) 4374 # define DEBUG_T(a) 4375 # define DEBUG_R(a) 4376 # define DEBUG_v(a) 4377 # define DEBUG_C(a) 4378 # define DEBUG_A(a) 4379 # define DEBUG_q(a) 4380 # define DEBUG_M(a) 4381 # define DEBUG_B(a) 4382 # define DEBUG_L(a) 4383 # define DEBUG_i(a) 4384 # define DEBUG_y(a) 4385 # define DEBUG_Xv(a) 4386 # define DEBUG_Uv(a) 4387 # define DEBUG_Pv(a) 4388 # define DEBUG_Lv(a) 4389 # define DEBUG_yv(a) 4390 #endif /* DEBUGGING */ 4391 4392 4393 #define DEBUG_SCOPE(where) \ 4394 DEBUG_l( \ 4395 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \ 4396 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \ 4397 __FILE__, __LINE__)); 4398 4399 /* Keep the old croak based assert for those who want it, and as a fallback if 4400 the platform is so heretically non-ANSI that it can't assert. */ 4401 4402 #define Perl_assert(what) PERL_DEB2( \ 4403 ((what) ? ((void) 0) : \ 4404 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \ 4405 "\", line %d", STRINGIFY(what), __LINE__), \ 4406 (void) 0)), ((void)0)) 4407 4408 /* assert() gets defined if DEBUGGING. 4409 * If no DEBUGGING, the <assert.h> has not been included. */ 4410 #ifndef assert 4411 # define assert(what) Perl_assert(what) 4412 #endif 4413 #ifdef DEBUGGING 4414 # define assert_(what) assert(what), 4415 #else 4416 # define assert_(what) 4417 #endif 4418 4419 struct ufuncs { 4420 I32 (*uf_val)(pTHX_ IV, SV*); 4421 I32 (*uf_set)(pTHX_ IV, SV*); 4422 IV uf_index; 4423 }; 4424 4425 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context. 4426 * XS code wanting to be backward compatible can do something 4427 * like the following: 4428 4429 #ifndef PERL_MG_UFUNC 4430 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv) 4431 #endif 4432 4433 static PERL_MG_UFUNC(foo_get, index, val) 4434 { 4435 sv_setsv(val, ...); 4436 return TRUE; 4437 } 4438 4439 -- Doug MacEachern 4440 4441 */ 4442 4443 #ifndef PERL_MG_UFUNC 4444 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv) 4445 #endif 4446 4447 #include <math.h> 4448 #ifdef __VMS 4449 /* isfinite and others are here rather than in math.h as C99 stipulates */ 4450 # include <fp.h> 4451 #endif 4452 4453 #ifndef __cplusplus 4454 # if !defined(WIN32) && !defined(VMS) 4455 #ifndef crypt 4456 char *crypt (const char*, const char*); 4457 #endif 4458 # endif /* !WIN32 */ 4459 # ifndef WIN32 4460 # ifndef getlogin 4461 char *getlogin (void); 4462 # endif 4463 # endif /* !WIN32 */ 4464 #endif /* !__cplusplus */ 4465 4466 /* Fixme on VMS. This needs to be a run-time, not build time options */ 4467 /* Also rename() is affected by this */ 4468 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */ 4469 #define UNLINK unlnk 4470 I32 unlnk (pTHX_ const char*); 4471 #else 4472 #define UNLINK PerlLIO_unlink 4473 #endif 4474 4475 /* some versions of glibc are missing the setresuid() proto */ 4476 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO) 4477 int setresuid(uid_t ruid, uid_t euid, uid_t suid); 4478 #endif 4479 /* some versions of glibc are missing the setresgid() proto */ 4480 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO) 4481 int setresgid(gid_t rgid, gid_t egid, gid_t sgid); 4482 #endif 4483 4484 #ifndef HAS_SETREUID 4485 # ifdef HAS_SETRESUID 4486 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1) 4487 # define HAS_SETREUID 4488 # endif 4489 #endif 4490 #ifndef HAS_SETREGID 4491 # ifdef HAS_SETRESGID 4492 # define setregid(r,e) setresgid(r,e,(Gid_t)-1) 4493 # define HAS_SETREGID 4494 # endif 4495 #endif 4496 4497 /* Sighandler_t defined in iperlsys.h */ 4498 4499 #ifdef HAS_SIGACTION 4500 typedef struct sigaction Sigsave_t; 4501 #else 4502 typedef Sighandler_t Sigsave_t; 4503 #endif 4504 4505 #define SCAN_DEF 0 4506 #define SCAN_TR 1 4507 #define SCAN_REPL 2 4508 4509 #ifdef DEBUGGING 4510 # ifndef register 4511 # define register 4512 # endif 4513 # define RUNOPS_DEFAULT Perl_runops_debug 4514 #else 4515 # define RUNOPS_DEFAULT Perl_runops_standard 4516 #endif 4517 4518 #if defined(USE_PERLIO) 4519 EXTERN_C void PerlIO_teardown(void); 4520 # ifdef USE_ITHREADS 4521 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex) 4522 # define PERLIO_TERM \ 4523 STMT_START { \ 4524 PerlIO_teardown(); \ 4525 MUTEX_DESTROY(&PL_perlio_mutex);\ 4526 } STMT_END 4527 # else 4528 # define PERLIO_INIT 4529 # define PERLIO_TERM PerlIO_teardown() 4530 # endif 4531 #else 4532 # define PERLIO_INIT 4533 # define PERLIO_TERM 4534 #endif 4535 4536 #ifdef MYMALLOC 4537 # ifdef MUTEX_INIT_CALLS_MALLOC 4538 # define MALLOC_INIT \ 4539 STMT_START { \ 4540 PL_malloc_mutex = NULL; \ 4541 MUTEX_INIT(&PL_malloc_mutex); \ 4542 } STMT_END 4543 # define MALLOC_TERM \ 4544 STMT_START { \ 4545 perl_mutex tmp = PL_malloc_mutex; \ 4546 PL_malloc_mutex = NULL; \ 4547 MUTEX_DESTROY(&tmp); \ 4548 } STMT_END 4549 # else 4550 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex) 4551 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex) 4552 # endif 4553 #else 4554 # define MALLOC_INIT 4555 # define MALLOC_TERM 4556 #endif 4557 4558 #if defined(PERL_IMPLICIT_CONTEXT) 4559 4560 struct perl_memory_debug_header; 4561 struct perl_memory_debug_header { 4562 tTHX interpreter; 4563 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW) 4564 MEM_SIZE size; 4565 # endif 4566 struct perl_memory_debug_header *prev; 4567 struct perl_memory_debug_header *next; 4568 # ifdef PERL_DEBUG_READONLY_COW 4569 bool readonly; 4570 # endif 4571 }; 4572 4573 #elif defined(PERL_DEBUG_READONLY_COW) 4574 4575 struct perl_memory_debug_header; 4576 struct perl_memory_debug_header { 4577 MEM_SIZE size; 4578 }; 4579 4580 #endif 4581 4582 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW) 4583 4584 # define PERL_MEMORY_DEBUG_HEADER_SIZE \ 4585 (sizeof(struct perl_memory_debug_header) + \ 4586 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \ 4587 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES) 4588 4589 #else 4590 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0 4591 #endif 4592 4593 #ifdef PERL_TRACK_MEMPOOL 4594 # ifdef PERL_DEBUG_READONLY_COW 4595 # define INIT_TRACK_MEMPOOL(header, interp) \ 4596 STMT_START { \ 4597 (header).interpreter = (interp); \ 4598 (header).prev = (header).next = &(header); \ 4599 (header).readonly = 0; \ 4600 } STMT_END 4601 # else 4602 # define INIT_TRACK_MEMPOOL(header, interp) \ 4603 STMT_START { \ 4604 (header).interpreter = (interp); \ 4605 (header).prev = (header).next = &(header); \ 4606 } STMT_END 4607 # endif 4608 # else 4609 # define INIT_TRACK_MEMPOOL(header, interp) 4610 #endif 4611 4612 #ifdef I_MALLOCMALLOC 4613 /* Needed for malloc_size(), malloc_good_size() on some systems */ 4614 # include <malloc/malloc.h> 4615 #endif 4616 4617 #ifdef MYMALLOC 4618 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where) 4619 #else 4620 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW) 4621 # ifdef PERL_TRACK_MEMPOOL 4622 # define Perl_safesysmalloc_size(where) \ 4623 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE) 4624 # else 4625 # define Perl_safesysmalloc_size(where) malloc_size(where) 4626 # endif 4627 # endif 4628 # ifdef HAS_MALLOC_GOOD_SIZE 4629 # ifdef PERL_TRACK_MEMPOOL 4630 # define Perl_malloc_good_size(how_much) \ 4631 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE) 4632 # else 4633 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much) 4634 # endif 4635 # else 4636 /* Having this as the identity operation makes some code simpler. */ 4637 # define Perl_malloc_good_size(how_much) (how_much) 4638 # endif 4639 #endif 4640 4641 typedef int (*runops_proc_t)(pTHX); 4642 typedef void (*share_proc_t) (pTHX_ SV *sv); 4643 typedef int (*thrhook_proc_t) (pTHX); 4644 typedef OP* (*PPADDR_t[]) (pTHX); 4645 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv); 4646 typedef void (*despatch_signals_proc_t) (pTHX); 4647 4648 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE) 4649 # include <crt_externs.h> /* for the env array */ 4650 # define environ (*_NSGetEnviron()) 4651 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ) 4652 /* VMS and some other platforms don't use the environ array */ 4653 EXTERN_C char **environ; /* environment variables supplied via exec */ 4654 #endif 4655 4656 #define PERL_PATCHLEVEL_H_IMPLICIT 4657 #include "patchlevel.h" 4658 #undef PERL_PATCHLEVEL_H_IMPLICIT 4659 4660 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \ 4661 STRINGIFY(PERL_VERSION) "." \ 4662 STRINGIFY(PERL_SUBVERSION) 4663 4664 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \ 4665 STRINGIFY(PERL_API_VERSION) "." \ 4666 STRINGIFY(PERL_API_SUBVERSION) 4667 4668 START_EXTERN_C 4669 4670 /* handy constants */ 4671 EXTCONST char PL_warn_uninit[] 4672 INIT("Use of uninitialized value%s%s%s"); 4673 EXTCONST char PL_warn_uninit_sv[] 4674 INIT("Use of uninitialized value%" SVf "%s%s"); 4675 EXTCONST char PL_warn_nosemi[] 4676 INIT("Semicolon seems to be missing"); 4677 EXTCONST char PL_warn_reserved[] 4678 INIT("Unquoted string \"%s\" may clash with future reserved word"); 4679 EXTCONST char PL_warn_nl[] 4680 INIT("Unsuccessful %s on filename containing newline"); 4681 EXTCONST char PL_no_wrongref[] 4682 INIT("Can't use %s ref as %s ref"); 4683 /* The core no longer needs this here. If you require the string constant, 4684 please inline a copy into your own code. */ 4685 EXTCONST char PL_no_symref[] __attribute__deprecated__ 4686 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use"); 4687 EXTCONST char PL_no_symref_sv[] 4688 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"); 4689 4690 EXTCONST char PL_no_usym[] 4691 INIT("Can't use an undefined value as %s reference"); 4692 EXTCONST char PL_no_aelem[] 4693 INIT("Modification of non-creatable array value attempted, subscript %d"); 4694 EXTCONST char PL_no_helem_sv[] 4695 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\""); 4696 EXTCONST char PL_no_modify[] 4697 INIT("Modification of a read-only value attempted"); 4698 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")] 4699 INIT("Out of memory!\n"); 4700 EXTCONST char PL_no_security[] 4701 INIT("Insecure dependency in %s%s"); 4702 EXTCONST char PL_no_sock_func[] 4703 INIT("Unsupported socket function \"%s\" called"); 4704 EXTCONST char PL_no_dir_func[] 4705 INIT("Unsupported directory function \"%s\" called"); 4706 EXTCONST char PL_no_func[] 4707 INIT("The %s function is unimplemented"); 4708 EXTCONST char PL_no_myglob[] 4709 INIT("\"%s\" %s %s can't be in a package"); 4710 EXTCONST char PL_no_localize_ref[] 4711 INIT("Can't localize through a reference"); 4712 EXTCONST char PL_memory_wrap[] 4713 INIT("panic: memory wrap"); 4714 EXTCONST char PL_extended_cp_format[] 4715 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension," 4716 " and so is not portable"); 4717 EXTCONST char PL_Yes[] 4718 INIT("1"); 4719 EXTCONST char PL_No[] 4720 INIT(""); 4721 EXTCONST char PL_Zero[] 4722 INIT("0"); 4723 EXTCONST char PL_hexdigit[] 4724 INIT("0123456789abcdef0123456789ABCDEF"); 4725 4726 EXTCONST STRLEN PL_WARN_ALL 4727 INIT(0); 4728 EXTCONST STRLEN PL_WARN_NONE 4729 INIT(0); 4730 4731 /* This is constant on most architectures, a global on OS/2 */ 4732 #ifndef OS2 4733 EXTCONST char PL_sh_path[] 4734 INIT(SH_PATH); /* full path of shell */ 4735 #endif 4736 4737 #ifdef CSH 4738 EXTCONST char PL_cshname[] 4739 INIT(CSH); 4740 # define PL_cshlen (sizeof(CSH "") - 1) 4741 #endif 4742 4743 /* These are baked at compile time into any shared perl library. 4744 In future releases this will allow us in main() to sanity test the 4745 library we're linking against. */ 4746 4747 EXTCONST U8 PL_revision 4748 INIT(PERL_REVISION); 4749 EXTCONST U8 PL_version 4750 INIT(PERL_VERSION); 4751 EXTCONST U8 PL_subversion 4752 INIT(PERL_SUBVERSION); 4753 4754 EXTCONST char PL_uuemap[65] 4755 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"); 4756 4757 /* a special string address whose value is "isa", but which perl knows 4758 * to treat as if it were really "DOES" when printing the method name in 4759 * the "Can't call method '%s'" error message */ 4760 EXTCONST char PL_isa_DOES[] 4761 INIT("isa"); 4762 4763 #ifdef DOINIT 4764 EXTCONST char PL_uudmap[256] = 4765 # ifdef PERL_MICRO 4766 # include "uuudmap.h" 4767 # else 4768 # include "uudmap.h" 4769 # endif 4770 ; 4771 EXTCONST char PL_bitcount[256] = 4772 # ifdef PERL_MICRO 4773 # include "ubitcount.h" 4774 #else 4775 # include "bitcount.h" 4776 # endif 4777 ; 4778 EXTCONST char* const PL_sig_name[] = { SIG_NAME }; 4779 EXTCONST int PL_sig_num[] = { SIG_NUM }; 4780 #else 4781 EXTCONST char PL_uudmap[256]; 4782 EXTCONST char PL_bitcount[256]; 4783 EXTCONST char* const PL_sig_name[]; 4784 EXTCONST int PL_sig_num[]; 4785 #endif 4786 4787 /* fast conversion and case folding tables. The folding tables complement the 4788 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated 4789 * folds such as outside the range or to multiple characters. */ 4790 4791 #ifdef DOINIT 4792 #ifndef EBCDIC 4793 4794 /* The EBCDIC fold table depends on the code page, and hence is found in 4795 * utfebcdic.h */ 4796 4797 EXTCONST unsigned char PL_fold[] = { 4798 0, 1, 2, 3, 4, 5, 6, 7, 4799 8, 9, 10, 11, 12, 13, 14, 15, 4800 16, 17, 18, 19, 20, 21, 22, 23, 4801 24, 25, 26, 27, 28, 29, 30, 31, 4802 32, 33, 34, 35, 36, 37, 38, 39, 4803 40, 41, 42, 43, 44, 45, 46, 47, 4804 48, 49, 50, 51, 52, 53, 54, 55, 4805 56, 57, 58, 59, 60, 61, 62, 63, 4806 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4807 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4808 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4809 'x', 'y', 'z', 91, 92, 93, 94, 95, 4810 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4811 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4812 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4813 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4814 128, 129, 130, 131, 132, 133, 134, 135, 4815 136, 137, 138, 139, 140, 141, 142, 143, 4816 144, 145, 146, 147, 148, 149, 150, 151, 4817 152, 153, 154, 155, 156, 157, 158, 159, 4818 160, 161, 162, 163, 164, 165, 166, 167, 4819 168, 169, 170, 171, 172, 173, 174, 175, 4820 176, 177, 178, 179, 180, 181, 182, 183, 4821 184, 185, 186, 187, 188, 189, 190, 191, 4822 192, 193, 194, 195, 196, 197, 198, 199, 4823 200, 201, 202, 203, 204, 205, 206, 207, 4824 208, 209, 210, 211, 212, 213, 214, 215, 4825 216, 217, 218, 219, 220, 221, 222, 223, 4826 224, 225, 226, 227, 228, 229, 230, 231, 4827 232, 233, 234, 235, 236, 237, 238, 239, 4828 240, 241, 242, 243, 244, 245, 246, 247, 4829 248, 249, 250, 251, 252, 253, 254, 255 4830 }; 4831 EXTCONST unsigned char PL_fold_latin1[] = { 4832 /* Full latin1 complement folding, except for three problematic code points: 4833 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their 4834 * fold complements outside the Latin1 range, so can't match something 4835 * that isn't in utf8. 4836 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss', 4837 * not one, so can't be represented in this table. 4838 * 4839 * All have to be specially handled */ 4840 0, 1, 2, 3, 4, 5, 6, 7, 4841 8, 9, 10, 11, 12, 13, 14, 15, 4842 16, 17, 18, 19, 20, 21, 22, 23, 4843 24, 25, 26, 27, 28, 29, 30, 31, 4844 32, 33, 34, 35, 36, 37, 38, 39, 4845 40, 41, 42, 43, 44, 45, 46, 47, 4846 48, 49, 50, 51, 52, 53, 54, 55, 4847 56, 57, 58, 59, 60, 61, 62, 63, 4848 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4849 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4850 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4851 'x', 'y', 'z', 91, 92, 93, 94, 95, 4852 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4853 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4854 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4855 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4856 128, 129, 130, 131, 132, 133, 134, 135, 4857 136, 137, 138, 139, 140, 141, 142, 143, 4858 144, 145, 146, 147, 148, 149, 150, 151, 4859 152, 153, 154, 155, 156, 157, 158, 159, 4860 160, 161, 162, 163, 164, 165, 166, 167, 4861 168, 169, 170, 171, 172, 173, 174, 175, 4862 176, 177, 178, 179, 180, 181 /*micro */, 182, 183, 4863 184, 185, 186, 187, 188, 189, 190, 191, 4864 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32, 4865 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32, 4866 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215, 4867 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */, 4868 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32, 4869 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32, 4870 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247, 4871 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 4872 255 /* y with diaeresis */ 4873 }; 4874 4875 /* If these tables are accessed through ebcdic, the access will be converted to 4876 * latin1 first */ 4877 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */ 4878 0, 1, 2, 3, 4, 5, 6, 7, 4879 8, 9, 10, 11, 12, 13, 14, 15, 4880 16, 17, 18, 19, 20, 21, 22, 23, 4881 24, 25, 26, 27, 28, 29, 30, 31, 4882 32, 33, 34, 35, 36, 37, 38, 39, 4883 40, 41, 42, 43, 44, 45, 46, 47, 4884 48, 49, 50, 51, 52, 53, 54, 55, 4885 56, 57, 58, 59, 60, 61, 62, 63, 4886 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4887 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4888 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4889 'x', 'y', 'z', 91, 92, 93, 94, 95, 4890 96, 97, 98, 99, 100, 101, 102, 103, 4891 104, 105, 106, 107, 108, 109, 110, 111, 4892 112, 113, 114, 115, 116, 117, 118, 119, 4893 120, 121, 122, 123, 124, 125, 126, 127, 4894 128, 129, 130, 131, 132, 133, 134, 135, 4895 136, 137, 138, 139, 140, 141, 142, 143, 4896 144, 145, 146, 147, 148, 149, 150, 151, 4897 152, 153, 154, 155, 156, 157, 158, 159, 4898 160, 161, 162, 163, 164, 165, 166, 167, 4899 168, 169, 170, 171, 172, 173, 174, 175, 4900 176, 177, 178, 179, 180, 181, 182, 183, 4901 184, 185, 186, 187, 188, 189, 190, 191, 4902 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32, 4903 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32, 4904 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215, 4905 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223, 4906 224, 225, 226, 227, 228, 229, 230, 231, 4907 232, 233, 234, 235, 236, 237, 238, 239, 4908 240, 241, 242, 243, 244, 245, 246, 247, 4909 248, 249, 250, 251, 252, 253, 254, 255 4910 }; 4911 4912 /* upper and title case of latin1 characters, modified so that the three tricky 4913 * ones are mapped to 255 (which is one of the three) */ 4914 EXTCONST unsigned char PL_mod_latin1_uc[] = { 4915 0, 1, 2, 3, 4, 5, 6, 7, 4916 8, 9, 10, 11, 12, 13, 14, 15, 4917 16, 17, 18, 19, 20, 21, 22, 23, 4918 24, 25, 26, 27, 28, 29, 30, 31, 4919 32, 33, 34, 35, 36, 37, 38, 39, 4920 40, 41, 42, 43, 44, 45, 46, 47, 4921 48, 49, 50, 51, 52, 53, 54, 55, 4922 56, 57, 58, 59, 60, 61, 62, 63, 4923 64, 65, 66, 67, 68, 69, 70, 71, 4924 72, 73, 74, 75, 76, 77, 78, 79, 4925 80, 81, 82, 83, 84, 85, 86, 87, 4926 88, 89, 90, 91, 92, 93, 94, 95, 4927 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4928 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4929 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4930 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4931 128, 129, 130, 131, 132, 133, 134, 135, 4932 136, 137, 138, 139, 140, 141, 142, 143, 4933 144, 145, 146, 147, 148, 149, 150, 151, 4934 152, 153, 154, 155, 156, 157, 158, 159, 4935 160, 161, 162, 163, 164, 165, 166, 167, 4936 168, 169, 170, 171, 172, 173, 174, 175, 4937 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183, 4938 184, 185, 186, 187, 188, 189, 190, 191, 4939 192, 193, 194, 195, 196, 197, 198, 199, 4940 200, 201, 202, 203, 204, 205, 206, 207, 4941 208, 209, 210, 211, 212, 213, 214, 215, 4942 216, 217, 218, 219, 220, 221, 222, 4943 #if UNICODE_MAJOR_VERSION > 2 \ 4944 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \ 4945 && UNICODE_DOT_DOT_VERSION >= 8) 4946 255 /*sharp s*/, 4947 #else /* uc(sharp s) is 'sharp s' itself in early unicode */ 4948 223, 4949 #endif 4950 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32, 4951 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32, 4952 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247, 4953 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255 4954 }; 4955 #endif /* !EBCDIC, but still in DOINIT */ 4956 #else /* ! DOINIT */ 4957 # ifndef EBCDIC 4958 EXTCONST unsigned char PL_fold[]; 4959 EXTCONST unsigned char PL_fold_latin1[]; 4960 EXTCONST unsigned char PL_mod_latin1_uc[]; 4961 EXTCONST unsigned char PL_latin1_lc[]; 4962 # endif 4963 #endif 4964 4965 #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */ 4966 #ifdef DOINIT 4967 EXT unsigned char PL_fold_locale[256] = { /* Unfortunately not EXTCONST. */ 4968 0, 1, 2, 3, 4, 5, 6, 7, 4969 8, 9, 10, 11, 12, 13, 14, 15, 4970 16, 17, 18, 19, 20, 21, 22, 23, 4971 24, 25, 26, 27, 28, 29, 30, 31, 4972 32, 33, 34, 35, 36, 37, 38, 39, 4973 40, 41, 42, 43, 44, 45, 46, 47, 4974 48, 49, 50, 51, 52, 53, 54, 55, 4975 56, 57, 58, 59, 60, 61, 62, 63, 4976 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4977 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4978 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4979 'x', 'y', 'z', 91, 92, 93, 94, 95, 4980 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4981 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4982 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4983 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4984 128, 129, 130, 131, 132, 133, 134, 135, 4985 136, 137, 138, 139, 140, 141, 142, 143, 4986 144, 145, 146, 147, 148, 149, 150, 151, 4987 152, 153, 154, 155, 156, 157, 158, 159, 4988 160, 161, 162, 163, 164, 165, 166, 167, 4989 168, 169, 170, 171, 172, 173, 174, 175, 4990 176, 177, 178, 179, 180, 181, 182, 183, 4991 184, 185, 186, 187, 188, 189, 190, 191, 4992 192, 193, 194, 195, 196, 197, 198, 199, 4993 200, 201, 202, 203, 204, 205, 206, 207, 4994 208, 209, 210, 211, 212, 213, 214, 215, 4995 216, 217, 218, 219, 220, 221, 222, 223, 4996 224, 225, 226, 227, 228, 229, 230, 231, 4997 232, 233, 234, 235, 236, 237, 238, 239, 4998 240, 241, 242, 243, 244, 245, 246, 247, 4999 248, 249, 250, 251, 252, 253, 254, 255 5000 }; 5001 #else 5002 EXT unsigned char PL_fold_locale[256]; /* Unfortunately not EXTCONST. */ 5003 #endif 5004 #endif /* !PERL_GLOBAL_STRUCT */ 5005 5006 #ifdef DOINIT 5007 #ifdef EBCDIC 5008 EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */ 5009 1, 2, 84, 151, 154, 155, 156, 157, 5010 165, 246, 250, 3, 158, 7, 18, 29, 5011 40, 51, 62, 73, 85, 96, 107, 118, 5012 129, 140, 147, 148, 149, 150, 152, 153, 5013 255, 6, 8, 9, 10, 11, 12, 13, 5014 14, 15, 24, 25, 26, 27, 28, 226, 5015 29, 30, 31, 32, 33, 43, 44, 45, 5016 46, 47, 48, 49, 50, 76, 77, 78, 5017 79, 80, 81, 82, 83, 84, 85, 86, 5018 87, 94, 95, 234, 181, 233, 187, 190, 5019 180, 96, 97, 98, 99, 100, 101, 102, 5020 104, 112, 182, 174, 236, 232, 229, 103, 5021 228, 226, 114, 115, 116, 117, 118, 119, 5022 120, 121, 122, 235, 176, 230, 194, 162, 5023 130, 131, 132, 133, 134, 135, 136, 137, 5024 138, 139, 201, 205, 163, 217, 220, 224, 5025 5, 248, 227, 244, 242, 255, 241, 231, 5026 240, 253, 16, 197, 19, 20, 21, 187, 5027 23, 169, 210, 245, 237, 249, 247, 239, 5028 168, 252, 34, 196, 36, 37, 38, 39, 5029 41, 42, 251, 254, 238, 223, 221, 213, 5030 225, 177, 52, 53, 54, 55, 56, 57, 5031 58, 59, 60, 61, 63, 64, 65, 66, 5032 67, 68, 69, 70, 71, 72, 74, 75, 5033 205, 208, 186, 202, 200, 218, 198, 179, 5034 178, 214, 88, 89, 90, 91, 92, 93, 5035 217, 166, 170, 207, 199, 209, 206, 204, 5036 160, 212, 105, 106, 108, 109, 110, 111, 5037 203, 113, 216, 215, 192, 175, 193, 243, 5038 172, 161, 123, 124, 125, 126, 127, 128, 5039 222, 219, 211, 195, 188, 193, 185, 184, 5040 191, 183, 141, 142, 143, 144, 145, 146 5041 }; 5042 #else /* ascii rather than ebcdic */ 5043 EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */ 5044 1, 2, 84, 151, 154, 155, 156, 157, 5045 165, 246, 250, 3, 158, 7, 18, 29, 5046 40, 51, 62, 73, 85, 96, 107, 118, 5047 129, 140, 147, 148, 149, 150, 152, 153, 5048 255, 182, 224, 205, 174, 176, 180, 217, 5049 233, 232, 236, 187, 235, 228, 234, 226, 5050 222, 219, 211, 195, 188, 193, 185, 184, 5051 191, 183, 201, 229, 181, 220, 194, 162, 5052 163, 208, 186, 202, 200, 218, 198, 179, 5053 178, 214, 166, 170, 207, 199, 209, 206, 5054 204, 160, 212, 216, 215, 192, 175, 173, 5055 243, 172, 161, 190, 203, 189, 164, 230, 5056 167, 248, 227, 244, 242, 255, 241, 231, 5057 240, 253, 169, 210, 245, 237, 249, 247, 5058 239, 168, 252, 251, 254, 238, 223, 221, 5059 213, 225, 177, 197, 171, 196, 159, 4, 5060 5, 6, 8, 9, 10, 11, 12, 13, 5061 14, 15, 16, 17, 19, 20, 21, 22, 5062 23, 24, 25, 26, 27, 28, 30, 31, 5063 32, 33, 34, 35, 36, 37, 38, 39, 5064 41, 42, 43, 44, 45, 46, 47, 48, 5065 49, 50, 52, 53, 54, 55, 56, 57, 5066 58, 59, 60, 61, 63, 64, 65, 66, 5067 67, 68, 69, 70, 71, 72, 74, 75, 5068 76, 77, 78, 79, 80, 81, 82, 83, 5069 86, 87, 88, 89, 90, 91, 92, 93, 5070 94, 95, 97, 98, 99, 100, 101, 102, 5071 103, 104, 105, 106, 108, 109, 110, 111, 5072 112, 113, 114, 115, 116, 117, 119, 120, 5073 121, 122, 123, 124, 125, 126, 127, 128, 5074 130, 131, 132, 133, 134, 135, 136, 137, 5075 138, 139, 141, 142, 143, 144, 145, 146 5076 }; 5077 #endif 5078 #else 5079 EXTCONST unsigned char PL_freq[]; 5080 #endif 5081 5082 /* Although only used for debugging, these constants must be available in 5083 * non-debugging builds too, since they're used in ext/re/re_exec.c, 5084 * which has DEBUGGING enabled always */ 5085 #ifdef DOINIT 5086 EXTCONST char* const PL_block_type[] = { 5087 "NULL", 5088 "WHEN", 5089 "BLOCK", 5090 "GIVEN", 5091 "LOOP_ARY", 5092 "LOOP_LAZYSV", 5093 "LOOP_LAZYIV", 5094 "LOOP_LIST", 5095 "LOOP_PLAIN", 5096 "SUB", 5097 "FORMAT", 5098 "EVAL", 5099 "SUBST" 5100 }; 5101 #else 5102 EXTCONST char* PL_block_type[]; 5103 #endif 5104 5105 /* These are all the compile time options that affect binary compatibility. 5106 Other compile time options that are binary compatible are in perl.c 5107 (in S_Internals_V()). Both are combined for the output of perl -V 5108 However, this string will be embedded in any shared perl library, which will 5109 allow us add a comparison check in perlmain.c in the near future. */ 5110 #ifdef DOINIT 5111 EXTCONST char PL_bincompat_options[] = 5112 # ifdef DEBUG_LEAKING_SCALARS 5113 " DEBUG_LEAKING_SCALARS" 5114 # endif 5115 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP 5116 " DEBUG_LEAKING_SCALARS_FORK_DUMP" 5117 # endif 5118 # ifdef FCRYPT 5119 " FCRYPT" 5120 # endif 5121 # ifdef HAS_TIMES 5122 " HAS_TIMES" 5123 # endif 5124 # ifdef HAVE_INTERP_INTERN 5125 " HAVE_INTERP_INTERN" 5126 # endif 5127 # ifdef MULTIPLICITY 5128 " MULTIPLICITY" 5129 # endif 5130 # ifdef MYMALLOC 5131 " MYMALLOC" 5132 # endif 5133 # ifdef PERLIO_LAYERS 5134 " PERLIO_LAYERS" 5135 # endif 5136 # ifdef PERL_DEBUG_READONLY_COW 5137 " PERL_DEBUG_READONLY_COW" 5138 # endif 5139 # ifdef PERL_DEBUG_READONLY_OPS 5140 " PERL_DEBUG_READONLY_OPS" 5141 # endif 5142 # ifdef PERL_GLOBAL_STRUCT 5143 " PERL_GLOBAL_STRUCT" 5144 # endif 5145 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 5146 " PERL_GLOBAL_STRUCT_PRIVATE" 5147 # endif 5148 # ifdef PERL_IMPLICIT_CONTEXT 5149 " PERL_IMPLICIT_CONTEXT" 5150 # endif 5151 # ifdef PERL_IMPLICIT_SYS 5152 " PERL_IMPLICIT_SYS" 5153 # endif 5154 # ifdef PERL_MICRO 5155 " PERL_MICRO" 5156 # endif 5157 # ifdef PERL_NEED_APPCTX 5158 " PERL_NEED_APPCTX" 5159 # endif 5160 # ifdef PERL_NEED_TIMESBASE 5161 " PERL_NEED_TIMESBASE" 5162 # endif 5163 # ifdef PERL_POISON 5164 " PERL_POISON" 5165 # endif 5166 # ifdef PERL_SAWAMPERSAND 5167 " PERL_SAWAMPERSAND" 5168 # endif 5169 # ifdef PERL_TRACK_MEMPOOL 5170 " PERL_TRACK_MEMPOOL" 5171 # endif 5172 # ifdef PERL_USES_PL_PIDSTATUS 5173 " PERL_USES_PL_PIDSTATUS" 5174 # endif 5175 # ifdef USE_64_BIT_ALL 5176 " USE_64_BIT_ALL" 5177 # endif 5178 # ifdef USE_64_BIT_INT 5179 " USE_64_BIT_INT" 5180 # endif 5181 # ifdef USE_IEEE 5182 " USE_IEEE" 5183 # endif 5184 # ifdef USE_ITHREADS 5185 " USE_ITHREADS" 5186 # endif 5187 # ifdef USE_LARGE_FILES 5188 " USE_LARGE_FILES" 5189 # endif 5190 # ifdef USE_LOCALE_COLLATE 5191 " USE_LOCALE_COLLATE" 5192 # endif 5193 # ifdef USE_LOCALE_NUMERIC 5194 " USE_LOCALE_NUMERIC" 5195 # endif 5196 # ifdef USE_LOCALE_TIME 5197 " USE_LOCALE_TIME" 5198 # endif 5199 # ifdef USE_LONG_DOUBLE 5200 " USE_LONG_DOUBLE" 5201 # endif 5202 # ifdef USE_PERLIO 5203 " USE_PERLIO" 5204 # endif 5205 # ifdef USE_QUADMATH 5206 " USE_QUADMATH" 5207 # endif 5208 # ifdef USE_REENTRANT_API 5209 " USE_REENTRANT_API" 5210 # endif 5211 # ifdef USE_SOCKS 5212 " USE_SOCKS" 5213 # endif 5214 # ifdef VMS_DO_SOCKETS 5215 " VMS_DO_SOCKETS" 5216 # endif 5217 # ifdef VMS_SHORTEN_LONG_SYMBOLS 5218 " VMS_SHORTEN_LONG_SYMBOLS" 5219 # endif 5220 # ifdef VMS_WE_ARE_CASE_SENSITIVE 5221 " VMS_SYMBOL_CASE_AS_IS" 5222 # endif 5223 ""; 5224 #else 5225 EXTCONST char PL_bincompat_options[]; 5226 #endif 5227 5228 #ifndef PERL_SET_PHASE 5229 # define PERL_SET_PHASE(new_phase) \ 5230 PERL_DTRACE_PROBE_PHASE(new_phase); \ 5231 PL_phase = new_phase; 5232 #endif 5233 5234 /* The interpreter phases. If these ever change, PL_phase_names right below will 5235 * need to be updated accordingly. */ 5236 enum perl_phase { 5237 PERL_PHASE_CONSTRUCT = 0, 5238 PERL_PHASE_START = 1, 5239 PERL_PHASE_CHECK = 2, 5240 PERL_PHASE_INIT = 3, 5241 PERL_PHASE_RUN = 4, 5242 PERL_PHASE_END = 5, 5243 PERL_PHASE_DESTRUCT = 6 5244 }; 5245 5246 #ifdef DOINIT 5247 EXTCONST char *const PL_phase_names[] = { 5248 "CONSTRUCT", 5249 "START", 5250 "CHECK", 5251 "INIT", 5252 "RUN", 5253 "END", 5254 "DESTRUCT" 5255 }; 5256 #else 5257 EXTCONST char *const PL_phase_names[]; 5258 #endif 5259 5260 #ifndef PERL_CORE 5261 /* Do not use this macro. It only exists for extensions that rely on PL_dirty 5262 * instead of using the newer PL_phase, which provides everything PL_dirty 5263 * provided, and more. */ 5264 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT) 5265 5266 # define PL_amagic_generation PL_na 5267 # define PL_encoding ((SV *)NULL) 5268 #endif /* !PERL_CORE */ 5269 5270 #define PL_hints PL_compiling.cop_hints 5271 #define PL_maxo MAXO 5272 5273 END_EXTERN_C 5274 5275 /*****************************************************************************/ 5276 /* This lexer/parser stuff is currently global since yacc is hard to reenter */ 5277 /*****************************************************************************/ 5278 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */ 5279 5280 #ifdef __Lynx__ 5281 /* LynxOS defines these in scsi.h which is included via ioctl.h */ 5282 #ifdef FORMAT 5283 #undef FORMAT 5284 #endif 5285 #ifdef SPACE 5286 #undef SPACE 5287 #endif 5288 #endif 5289 5290 #define LEX_NOTPARSING 11 /* borrowed from toke.c */ 5291 5292 typedef enum { 5293 XOPERATOR, 5294 XTERM, 5295 XREF, 5296 XSTATE, 5297 XBLOCK, 5298 XATTRBLOCK, /* next token should be an attribute or block */ 5299 XATTRTERM, /* next token should be an attribute, or block in a term */ 5300 XTERMBLOCK, 5301 XBLOCKTERM, 5302 XPOSTDEREF, 5303 XTERMORDORDOR /* evil hack */ 5304 /* update exp_name[] in toke.c if adding to this enum */ 5305 } expectation; 5306 5307 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */ 5308 5309 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer 5310 special and there is no need for HINT_PRIVATE_MASK for COPs 5311 However, bitops store HINT_INTEGER in their op_private. 5312 5313 NOTE: The typical module using these has the bit value hard-coded, so don't 5314 blindly change the values of these. 5315 5316 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one 5317 is for "use locale 'FOO'" which excludes some categories. It requires going 5318 to %^H to find out which are in and which are out. This could be extended 5319 for the normal case of a plain HINT_LOCALE, so that %^H would be used for 5320 any locale form. */ 5321 #define HINT_INTEGER 0x00000001 /* integer pragma */ 5322 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */ 5323 #define HINT_LOCALE 0x00000004 /* locale pragma */ 5324 #define HINT_BYTES 0x00000008 /* bytes pragma */ 5325 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */ 5326 5327 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */ 5328 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */ 5329 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */ 5330 5331 #define HINT_BLOCK_SCOPE 0x00000100 5332 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */ 5333 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */ 5334 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */ 5335 5336 /* The HINT_NEW_* constants are used by the overload pragma */ 5337 #define HINT_NEW_INTEGER 0x00001000 5338 #define HINT_NEW_FLOAT 0x00002000 5339 #define HINT_NEW_BINARY 0x00004000 5340 #define HINT_NEW_STRING 0x00008000 5341 #define HINT_NEW_RE 0x00010000 5342 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */ 5343 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */ 5344 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */ 5345 5346 #define HINT_RE_TAINT 0x00100000 /* re pragma */ 5347 #define HINT_RE_EVAL 0x00200000 /* re pragma */ 5348 5349 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */ 5350 #define HINT_UTF8 0x00800000 /* utf8 pragma */ 5351 5352 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */ 5353 5354 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */ 5355 5356 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */ 5357 5358 /* Note: Used for HINT_M_VMSISH_*, 5359 currently defined by vms/vmsish.h: 5360 0x40000000 5361 0x80000000 5362 */ 5363 5364 /* The following are stored in $^H{sort}, not in PL_hints */ 5365 #define HINT_SORT_STABLE 0x00000100 /* sort styles */ 5366 #define HINT_SORT_UNSTABLE 0x00000200 5367 5368 /* flags for PL_sawampersand */ 5369 5370 #define SAWAMPERSAND_LEFT 1 /* saw $` */ 5371 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */ 5372 #define SAWAMPERSAND_RIGHT 4 /* saw $' */ 5373 5374 #ifndef PERL_SAWAMPERSAND 5375 # define PL_sawampersand \ 5376 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT) 5377 #endif 5378 5379 /* Used for debugvar magic */ 5380 #define DBVARMG_SINGLE 0 5381 #define DBVARMG_TRACE 1 5382 #define DBVARMG_SIGNAL 2 5383 #define DBVARMG_COUNT 3 5384 5385 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE]) 5386 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE]) 5387 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL]) 5388 5389 /* Various states of the input record separator SV (rs) */ 5390 #define RsSNARF(sv) (! SvOK(sv)) 5391 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv))) 5392 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv)) 5393 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0)) 5394 5395 /* A struct for keeping various DEBUGGING related stuff, 5396 * neatly packed. Currently only scratch variables for 5397 * constructing debug output are included. Needed always, 5398 * not just when DEBUGGING, though, because of the re extension. c*/ 5399 struct perl_debug_pad { 5400 SV pad[3]; 5401 }; 5402 5403 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i]) 5404 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \ 5405 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \ 5406 PERL_DEBUG_PAD(i)) 5407 5408 /* Enable variables which are pointers to functions */ 5409 typedef void (*peep_t)(pTHX_ OP* o); 5410 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm); 5411 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg, 5412 char* strend, char* strbeg, I32 minend, 5413 SV* screamer, void* data, U32 flags); 5414 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv, 5415 char *strpos, char *strend, 5416 U32 flags, 5417 re_scream_pos_data *d); 5418 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog); 5419 typedef void (*regfree_t) (pTHX_ struct regexp* r); 5420 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param); 5421 typedef I32 (*re_fold_t)(const char *, char const *, I32); 5422 5423 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*); 5424 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*); 5425 typedef void (*SVFUNC_t) (pTHX_ SV* const); 5426 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const); 5427 typedef void (*XSINIT_t) (pTHX); 5428 typedef void (*ATEXIT_t) (pTHX_ void*); 5429 typedef void (*XSUBADDR_t) (pTHX_ CV *); 5430 5431 typedef OP* (*Perl_ppaddr_t)(pTHX); 5432 typedef OP* (*Perl_check_t) (pTHX_ OP*); 5433 typedef void(*Perl_ophook_t)(pTHX_ OP*); 5434 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**); 5435 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *); 5436 5437 typedef void(*globhook_t)(pTHX); 5438 5439 #define KEYWORD_PLUGIN_DECLINE 0 5440 #define KEYWORD_PLUGIN_STMT 1 5441 #define KEYWORD_PLUGIN_EXPR 2 5442 5443 /* Interpreter exitlist entry */ 5444 typedef struct exitlistentry { 5445 void (*fn) (pTHX_ void*); 5446 void *ptr; 5447 } PerlExitListEntry; 5448 5449 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ 5450 /* These have to be before perlvars.h */ 5451 #if !defined(HAS_SIGACTION) && defined(VMS) 5452 # define FAKE_PERSISTENT_SIGNAL_HANDLERS 5453 #endif 5454 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ 5455 #if defined(KILL_BY_SIGPRC) 5456 # define FAKE_DEFAULT_SIGNAL_HANDLERS 5457 #endif 5458 5459 #if !defined(MULTIPLICITY) 5460 5461 struct interpreter { 5462 char broiled; 5463 }; 5464 5465 #else 5466 5467 /* If we have multiple interpreters define a struct 5468 holding variables which must be per-interpreter 5469 If we don't have threads anything that would have 5470 be per-thread is per-interpreter. 5471 */ 5472 5473 /* Set up PERLVAR macros for populating structs */ 5474 # define PERLVAR(prefix,var,type) type prefix##var; 5475 5476 /* 'var' is an array of length 'n' */ 5477 # define PERLVARA(prefix,var,n,type) type prefix##var[n]; 5478 5479 /* initialize 'var' to init' */ 5480 # define PERLVARI(prefix,var,type,init) type prefix##var; 5481 5482 /* like PERLVARI, but make 'var' a const */ 5483 # define PERLVARIC(prefix,var,type,init) type prefix##var; 5484 5485 struct interpreter { 5486 # include "intrpvar.h" 5487 }; 5488 5489 EXTCONST U16 PL_interp_size 5490 INIT(sizeof(struct interpreter)); 5491 5492 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \ 5493 STRUCT_OFFSET(struct interpreter, member) + \ 5494 sizeof(((struct interpreter*)0)->member) 5495 5496 /* This will be useful for subsequent releases, because this has to be the 5497 same in your libperl as in main(), else you have a mismatch and must abort. 5498 */ 5499 EXTCONST U16 PL_interp_size_5_18_0 5500 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER)); 5501 5502 5503 # ifdef PERL_GLOBAL_STRUCT 5504 /* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined, 5505 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */ 5506 5507 struct perl_vars { 5508 # include "perlvars.h" 5509 }; 5510 5511 EXTCONST U16 PL_global_struct_size 5512 INIT(sizeof(struct perl_vars)); 5513 5514 # ifdef PERL_CORE 5515 # ifndef PERL_GLOBAL_STRUCT_PRIVATE 5516 EXT struct perl_vars PL_Vars; 5517 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars); 5518 # undef PERL_GET_VARS 5519 # define PERL_GET_VARS() PL_VarsPtr 5520 # endif /* !PERL_GLOBAL_STRUCT_PRIVATE */ 5521 # else /* PERL_CORE */ 5522 # if !defined(__GNUC__) || !defined(WIN32) 5523 EXT 5524 # endif /* WIN32 */ 5525 struct perl_vars *PL_VarsPtr; 5526 # define PL_Vars (*((PL_VarsPtr) \ 5527 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX)))) 5528 # endif /* PERL_CORE */ 5529 # endif /* PERL_GLOBAL_STRUCT */ 5530 5531 /* Done with PERLVAR macros for now ... */ 5532 # undef PERLVAR 5533 # undef PERLVARA 5534 # undef PERLVARI 5535 # undef PERLVARIC 5536 5537 #endif /* MULTIPLICITY */ 5538 5539 struct tempsym; /* defined in pp_pack.c */ 5540 5541 #include "thread.h" 5542 #include "pp.h" 5543 5544 #undef PERL_CKDEF 5545 #undef PERL_PPDEF 5546 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o); 5547 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX); 5548 5549 #ifdef MYMALLOC 5550 # include "malloc_ctl.h" 5551 #endif 5552 5553 /* 5554 * This provides a layer of functions and macros to ensure extensions will 5555 * get to use the same RTL functions as the core. 5556 */ 5557 #if defined(WIN32) 5558 # include "win32iop.h" 5559 #endif 5560 5561 5562 #include "proto.h" 5563 5564 /* this has structure inits, so it cannot be included before here */ 5565 #include "opcode.h" 5566 5567 /* The following must follow proto.h as #defines mess up syntax */ 5568 5569 #if !defined(PERL_FOR_X2P) 5570 # include "embedvar.h" 5571 #endif 5572 5573 /* Now include all the 'global' variables 5574 * If we don't have threads or multiple interpreters 5575 * these include variables that would have been their struct-s 5576 */ 5577 5578 #define PERLVAR(prefix,var,type) EXT type PL_##var; 5579 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n]; 5580 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init); 5581 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init); 5582 5583 #if !defined(MULTIPLICITY) 5584 START_EXTERN_C 5585 # include "intrpvar.h" 5586 END_EXTERN_C 5587 # define PL_sv_yes (PL_sv_immortals[0]) 5588 # define PL_sv_undef (PL_sv_immortals[1]) 5589 # define PL_sv_no (PL_sv_immortals[2]) 5590 # define PL_sv_zero (PL_sv_immortals[3]) 5591 #endif 5592 5593 #ifdef PERL_CORE 5594 /* All core uses now exterminated. Ensure no zombies can return: */ 5595 # undef PL_na 5596 #endif 5597 5598 /* Now all the config stuff is setup we can include embed.h 5599 In particular, need the relevant *ish file included already, as it may 5600 define HAVE_INTERP_INTERN */ 5601 #include "embed.h" 5602 5603 #ifndef PERL_GLOBAL_STRUCT 5604 START_EXTERN_C 5605 5606 # include "perlvars.h" 5607 5608 END_EXTERN_C 5609 #endif 5610 5611 #undef PERLVAR 5612 #undef PERLVARA 5613 #undef PERLVARI 5614 #undef PERLVARIC 5615 5616 #if !defined(MULTIPLICITY) 5617 /* Set up PERLVAR macros for populating structs */ 5618 # define PERLVAR(prefix,var,type) type prefix##var; 5619 /* 'var' is an array of length 'n' */ 5620 # define PERLVARA(prefix,var,n,type) type prefix##var[n]; 5621 /* initialize 'var' to init' */ 5622 # define PERLVARI(prefix,var,type,init) type prefix##var; 5623 /* like PERLVARI, but make 'var' a const */ 5624 # define PERLVARIC(prefix,var,type,init) type prefix##var; 5625 5626 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */ 5627 struct PerlHandShakeInterpreter { 5628 # include "intrpvar.h" 5629 }; 5630 # undef PERLVAR 5631 # undef PERLVARA 5632 # undef PERLVARI 5633 # undef PERLVARIC 5634 #endif 5635 5636 START_EXTERN_C 5637 5638 /* dummy variables that hold pointers to both runops functions, thus forcing 5639 * them *both* to get linked in (useful for Peek.xs, debugging etc) */ 5640 5641 EXTCONST runops_proc_t PL_runops_std 5642 INIT(Perl_runops_standard); 5643 EXTCONST runops_proc_t PL_runops_dbg 5644 INIT(Perl_runops_debug); 5645 5646 #define EXT_MGVTBL EXTCONST MGVTBL 5647 5648 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40 5649 #define PERL_MAGIC_VALUE_MAGIC 0x80 5650 #define PERL_MAGIC_VTABLE_MASK 0x3F 5651 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \ 5652 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE) 5653 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \ 5654 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC) 5655 5656 #include "mg_vtable.h" 5657 5658 #ifdef DOINIT 5659 EXTCONST U8 PL_magic_data[256] = 5660 # ifdef PERL_MICRO 5661 # include "umg_data.h" 5662 # else 5663 # include "mg_data.h" 5664 # endif 5665 ; 5666 #else 5667 EXTCONST U8 PL_magic_data[256]; 5668 #endif 5669 5670 #ifdef DOINIT 5671 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */ 5672 EXTCONST bool 5673 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 }; 5674 EXTCONST bool 5675 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 }; 5676 EXTCONST bool 5677 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 }; 5678 EXTCONST bool 5679 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 }; 5680 EXTCONST bool 5681 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 }; 5682 EXTCONST bool 5683 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 }; 5684 5685 #else 5686 5687 EXTCONST bool PL_valid_types_IVX[]; 5688 EXTCONST bool PL_valid_types_NVX[]; 5689 EXTCONST bool PL_valid_types_PVX[]; 5690 EXTCONST bool PL_valid_types_RV[]; 5691 EXTCONST bool PL_valid_types_IV_set[]; 5692 EXTCONST bool PL_valid_types_NV_set[]; 5693 5694 #endif 5695 5696 /* In C99 we could use designated (named field) union initializers. 5697 * In C89 we need to initialize the member declared first. 5698 * In C++ we need extern C initializers. 5699 * 5700 * With the U8_NV version you will want to have inner braces, 5701 * while with the NV_U8 use just the NV. */ 5702 5703 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; } 5704 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; } 5705 5706 /* if these never got defined, they need defaults */ 5707 #ifndef PERL_SET_CONTEXT 5708 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i) 5709 #endif 5710 5711 #ifndef PERL_GET_CONTEXT 5712 # define PERL_GET_CONTEXT PERL_GET_INTERP 5713 #endif 5714 5715 #ifndef PERL_GET_THX 5716 # define PERL_GET_THX ((void*)NULL) 5717 #endif 5718 5719 #ifndef PERL_SET_THX 5720 # define PERL_SET_THX(t) NOOP 5721 #endif 5722 5723 #ifndef EBCDIC 5724 5725 /* The tables below are adapted from 5726 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright 5727 * notice: 5728 5729 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de> 5730 5731 Permission is hereby granted, free of charge, to any person obtaining a copy of 5732 this software and associated documentation files (the "Software"), to deal in 5733 the Software without restriction, including without limitation the rights to 5734 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 5735 of the Software, and to permit persons to whom the Software is furnished to do 5736 so, subject to the following conditions: 5737 5738 The above copyright notice and this permission notice shall be included in all 5739 copies or substantial portions of the Software. 5740 5741 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 5742 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 5743 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 5744 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 5745 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 5746 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 5747 SOFTWARE. 5748 5749 */ 5750 5751 # ifdef DOINIT 5752 # if 0 /* This is the original table given in 5753 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */ 5754 static U8 utf8d_C9[] = { 5755 /* The first part of the table maps bytes to character classes that 5756 * to reduce the size of the transition table and create bitmasks. */ 5757 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-1F*/ 5758 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-3F*/ 5759 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-5F*/ 5760 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-7F*/ 5761 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, /*-9F*/ 5762 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, /*-BF*/ 5763 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, /*-DF*/ 5764 10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8, /*-FF*/ 5765 5766 /* The second part is a transition table that maps a combination 5767 * of a state of the automaton and a character class to a state. */ 5768 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12, 5769 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12, 5770 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12, 5771 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12, 5772 12,36,12,12,12,12,12,12,12,12,12,12 5773 }; 5774 5775 # endif 5776 5777 /* This is a version of the above table customized for Perl that doesn't 5778 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit 5779 * machines). The classes have been renumbered so that the patterns are more 5780 * evident in the table. The class numbers for start bytes are constrained so 5781 * that they can be used as a shift count for masking off the leading one bits. 5782 * It would make the code simpler if start byte FF could also be handled, but 5783 * doing so would mean adding nodes for each of continuation bytes 6-12 5784 * remaining, and two more nodes for overlong detection (a total of 9), and 5785 * there is room only for 4 more nodes unless we make the array U16 instead of 5786 * U8. 5787 * 5788 * The classes are 5789 * 00-7F 0 5790 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC 5791 * FE 5792 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC 5793 * 84-87 9 Not legal immediately after start bytes E0 F0 F8 5794 * 88-8F 10 Not legal immediately after start bytes E0 F0 5795 * 90-9F 11 Not legal immediately after start byte E0 5796 * A0-BF 12 5797 * C0,C1 1 5798 * C2-DF 2 5799 * E0 13 5800 * E1-EF 3 5801 * F0 14 5802 * F1-F7 4 5803 * F8 15 5804 * F9-FB 5 5805 * FC 16 5806 * FD 6 5807 * FE 17 (or 1 on 32-bit machines, since it overflows) 5808 * FF 1 5809 */ 5810 5811 EXTCONST U8 PL_extended_utf8_dfa_tab[] = { 5812 /* The first part of the table maps bytes to character classes to reduce 5813 * the size of the transition table and create bitmasks. */ 5814 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/ 5815 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/ 5816 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/ 5817 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/ 5818 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/ 5819 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/ 5820 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/ 5821 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/ 5822 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/ 5823 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/ 5824 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/ 5825 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/ 5826 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/ 5827 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/ 5828 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/ 5829 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/ 5830 # ifdef UV_IS_QUAD 5831 17, /*FE*/ 5832 # else 5833 1, /*FE*/ 5834 # endif 5835 1, /*FF*/ 5836 5837 /* The second part is a transition table that maps a combination 5838 * of a state of the automaton and a character class to a new state, called a 5839 * node. The nodes are: 5840 * N0 The initial state, and final accepting one. 5841 * N1 Any one continuation byte (80-BF) left. This is transitioned to 5842 * immediately when the start byte indicates a two-byte sequence 5843 * N2 Any two continuation bytes left. 5844 * N3 Any three continuation bytes left. 5845 * N4 Any four continuation bytes left. 5846 * N5 Any five continuation bytes left. 5847 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong); 5848 * the other continuations transition to N1 5849 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong); 5850 * the other continuations transition to N2 5851 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong); 5852 * the other continuations transition to N3 5853 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong); 5854 * the other continuations transition to N4 5855 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong); 5856 * the other continuations transition to N5 5857 * 1 Reject. All transitions not mentioned above (except the single 5858 * byte ones (as they are always legal) are to this state. 5859 */ 5860 5861 # define NUM_CLASSES 18 5862 # define N0 0 5863 # define N1 ((N0) + NUM_CLASSES) 5864 # define N2 ((N1) + NUM_CLASSES) 5865 # define N3 ((N2) + NUM_CLASSES) 5866 # define N4 ((N3) + NUM_CLASSES) 5867 # define N5 ((N4) + NUM_CLASSES) 5868 # define N6 ((N5) + NUM_CLASSES) 5869 # define N7 ((N6) + NUM_CLASSES) 5870 # define N8 ((N7) + NUM_CLASSES) 5871 # define N9 ((N8) + NUM_CLASSES) 5872 # define N10 ((N9) + NUM_CLASSES) 5873 5874 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */ 5875 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10, 5876 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 5877 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1, 5878 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1, 5879 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1, 5880 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1, 5881 5882 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1, 5883 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1, 5884 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1, 5885 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1, 5886 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1, 5887 }; 5888 5889 /* And below is a version of the above table that accepts only strict UTF-8. 5890 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input 5891 * passes this dfa, it will be for a well-formed, non-problematic code point 5892 * that can be returned immediately. 5893 * 5894 * The "Implementation details" portion of 5895 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how 5896 * the first portion of the table maps each possible byte into a character 5897 * class. And that the classes for those bytes which are start bytes have been 5898 * carefully chosen so they serve as well to be used as a shift value to mask 5899 * off the leading 1 bits of the start byte. Unfortunately the addition of 5900 * being able to distinguish non-characters makes this not fully work. This is 5901 * because, now, the start bytes E1-EF have to be broken into 3 classes instead 5902 * of 2: 5903 * 1) ED because it could be a surrogate 5904 * 2) EF because it could be a non-character 5905 * 3) the rest, which can never evaluate to a problematic code point. 5906 * 5907 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a 5908 * shift (and hence class number) of either 3 or 4 to get a mask that works. 5909 * But that only allows two categories, and we need three. khw made the 5910 * decision to therefore treat the ED start byte as an error, so that the dfa 5911 * drops out immediately for that. In the dfa, classes 3 and 4 are used to 5912 * distinguish EF vs the rest. Then special code is used to deal with ED, 5913 * that's executed only when the dfa drops out. The code points started by ED 5914 * are half surrogates, and half hangul syllables. This means that 2048 of 5915 * the hangul syllables (about 18%) take longer than all other non-problematic 5916 * code points to handle. 5917 * 5918 * The changes to handle non-characters requires the addition of states and 5919 * classes to the dfa. (See the section on "Mapping bytes to character 5920 * classes" in the linked-to document for further explanation of the original 5921 * dfa.) 5922 * 5923 * The classes are 5924 * 00-7F 0 5925 * 80-8E 9 5926 * 8F 10 5927 * 90-9E 11 5928 * 9F 12 5929 * A0-AE 13 5930 * AF 14 5931 * B0-B6 15 5932 * B7 16 5933 * B8-BD 15 5934 * BE 17 5935 * BF 18 5936 * C0,C1 1 5937 * C2-DF 2 5938 * E0 7 5939 * E1-EC 3 5940 * ED 1 5941 * EE 3 5942 * EF 4 5943 * F0 8 5944 * F1-F3 6 (6 bits can be stripped) 5945 * F4 5 (only 5 can be stripped) 5946 * F5-FF 1 5947 */ 5948 5949 EXTCONST U8 PL_strict_utf8_dfa_tab[] = { 5950 /* The first part of the table maps bytes to character classes to reduce 5951 * the size of the transition table and create bitmasks. */ 5952 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/ 5953 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/ 5954 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/ 5955 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/ 5956 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/ 5957 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/ 5958 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/ 5959 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/ 5960 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/ 5961 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/ 5962 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/ 5963 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/ 5964 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/ 5965 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/ 5966 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/ 5967 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/ 5968 5969 /* The second part is a transition table that maps a combination 5970 * of a state of the automaton and a character class to a new state, called a 5971 * node. The nodes are: 5972 * N0 The initial state, and final accepting one. 5973 * N1 Any one continuation byte (80-BF) left. This is transitioned to 5974 * immediately when the start byte indicates a two-byte sequence 5975 * N2 Any two continuation bytes left. 5976 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong); 5977 * the other continuations transition to state N1 5978 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9; 5979 * the other continuations transitions to N1 5980 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong); 5981 * [9AB]F transition to N10; the other continuations to N2. 5982 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition 5983 * to N10; the other continuations to N2. 5984 * N7 Start byte is F4. Continuation bytes 90-BF are illegal 5985 * (non-unicode); 8F transitions to N10; the other continuations to N2 5986 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal 5987 * (non-characters); the other continuations transition to N0. 5988 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal 5989 * (non-characters); the other continuations transition to N0. 5990 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F. 5991 * Continuation byte BF transitions to N11; the other continuations to 5992 * N1 5993 * N11 Initial sequence is the two bytes given in N10 followed by BF. 5994 * Continuation bytes BE and BF are illegal (non-characters); the other 5995 * continuations transition to N0. 5996 * 1 Reject. All transitions not mentioned above (except the single 5997 * byte ones (as they are always legal) are to this state. 5998 */ 5999 6000 # undef N0 6001 # undef N1 6002 # undef N2 6003 # undef N3 6004 # undef N4 6005 # undef N5 6006 # undef N6 6007 # undef N7 6008 # undef N8 6009 # undef N9 6010 # undef NUM_CLASSES 6011 # define NUM_CLASSES 19 6012 # define N0 0 6013 # define N1 ((N0) + NUM_CLASSES) 6014 # define N2 ((N1) + NUM_CLASSES) 6015 # define N3 ((N2) + NUM_CLASSES) 6016 # define N4 ((N3) + NUM_CLASSES) 6017 # define N5 ((N4) + NUM_CLASSES) 6018 # define N6 ((N5) + NUM_CLASSES) 6019 # define N7 ((N6) + NUM_CLASSES) 6020 # define N8 ((N7) + NUM_CLASSES) 6021 # define N9 ((N8) + NUM_CLASSES) 6022 # define N10 ((N9) + NUM_CLASSES) 6023 # define N11 ((N10) + NUM_CLASSES) 6024 6025 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */ 6026 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 6027 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6028 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1, 6029 6030 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, 6031 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9, 6032 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10, 6033 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10, 6034 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1, 6035 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 6036 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 6037 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11, 6038 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 6039 }; 6040 6041 /* And below is yet another version of the above tables that accepts only UTF-8 6042 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but 6043 * it allows non-characters. This is isomorphic to the original table 6044 * in https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ 6045 * 6046 * The classes are 6047 * 00-7F 0 6048 * 80-8F 9 6049 * 90-9F 10 6050 * A0-BF 11 6051 * C0,C1 1 6052 * C2-DF 2 6053 * E0 7 6054 * E1-EC 3 6055 * ED 4 6056 * EE-EF 3 6057 * F0 8 6058 * F1-F3 6 (6 bits can be stripped) 6059 * F4 5 (only 5 can be stripped) 6060 * F5-FF 1 6061 */ 6062 6063 EXTCONST U8 PL_c9_utf8_dfa_tab[] = { 6064 /* The first part of the table maps bytes to character classes to reduce 6065 * the size of the transition table and create bitmasks. */ 6066 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/ 6067 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/ 6068 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/ 6069 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/ 6070 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/ 6071 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/ 6072 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/ 6073 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/ 6074 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/ 6075 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/ 6076 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/ 6077 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/ 6078 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/ 6079 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/ 6080 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/ 6081 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/ 6082 6083 /* The second part is a transition table that maps a combination 6084 * of a state of the automaton and a character class to a new state, called a 6085 * node. The nodes are: 6086 * N0 The initial state, and final accepting one. 6087 * N1 Any one continuation byte (80-BF) left. This is transitioned to 6088 * immediately when the start byte indicates a two-byte sequence 6089 * N2 Any two continuation bytes left. 6090 * N3 Any three continuation bytes left. 6091 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong); 6092 * the other continuations transition to state N1 6093 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates, 6094 * so are illegal. The other continuations transition to state N1. 6095 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong); 6096 * the other continuations transition to N2 6097 * N7 Start byte is F4. Continuation bytes 90-BF are illegal 6098 * (non-unicode); the other continuations transition to N2 6099 * 1 Reject. All transitions not mentioned above (except the single 6100 * byte ones (as they are always legal) are to this state. 6101 */ 6102 6103 # undef N0 6104 # undef N1 6105 # undef N2 6106 # undef N3 6107 # undef N4 6108 # undef N5 6109 # undef N6 6110 # undef N7 6111 # undef NUM_CLASSES 6112 # define NUM_CLASSES 12 6113 # define N0 0 6114 # define N1 ((N0) + NUM_CLASSES) 6115 # define N2 ((N1) + NUM_CLASSES) 6116 # define N3 ((N2) + NUM_CLASSES) 6117 # define N4 ((N3) + NUM_CLASSES) 6118 # define N5 ((N4) + NUM_CLASSES) 6119 # define N6 ((N5) + NUM_CLASSES) 6120 # define N7 ((N6) + NUM_CLASSES) 6121 6122 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */ 6123 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1, 6124 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 6125 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, 6126 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2, 6127 6128 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, 6129 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1, 6130 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, 6131 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1, 6132 }; 6133 6134 # else /* End of is DOINIT */ 6135 6136 EXTCONST U8 PL_extended_utf8_dfa_tab[]; 6137 EXTCONST U8 PL_strict_utf8_dfa_tab[]; 6138 EXTCONST U8 PL_c9_utf8_dfa_tab[]; 6139 6140 # endif 6141 #endif /* end of isn't EBCDIC */ 6142 6143 #ifndef PERL_NO_INLINE_FUNCTIONS 6144 /* Static inline funcs that depend on includes and declarations above. 6145 Some of these reference functions in the perl object files, and some 6146 compilers aren't smart enough to eliminate unused static inline 6147 functions, so including this file in source code can cause link errors 6148 even if the source code uses none of the functions. Hence including these 6149 can be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will 6150 (obviously) result in unworkable XS code, but allows simple probing code 6151 to continue to work, because it permits tests to include the perl headers 6152 for definitions without creating a link dependency on the perl library 6153 (which may not exist yet). 6154 */ 6155 6156 # include "inline.h" 6157 #endif 6158 6159 #include "overload.h" 6160 6161 END_EXTERN_C 6162 6163 struct am_table { 6164 U8 flags; 6165 U8 fallback; 6166 U16 spare; 6167 U32 was_ok_sub; 6168 CV* table[NofAMmeth]; 6169 }; 6170 struct am_table_short { 6171 U8 flags; 6172 U8 fallback; 6173 U16 spare; 6174 U32 was_ok_sub; 6175 }; 6176 typedef struct am_table AMT; 6177 typedef struct am_table_short AMTS; 6178 6179 #define AMGfallNEVER 1 6180 #define AMGfallNO 2 6181 #define AMGfallYES 3 6182 6183 #define AMTf_AMAGIC 1 6184 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC) 6185 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC) 6186 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC) 6187 6188 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg)) 6189 6190 /* 6191 * some compilers like to redefine cos et alia as faster 6192 * (and less accurate?) versions called F_cos et cetera (Quidquid 6193 * latine dictum sit, altum viditur.) This trick collides with 6194 * the Perl overloading (amg). The following #defines fool both. 6195 */ 6196 6197 #ifdef _FASTMATH 6198 # ifdef atan2 6199 # define F_atan2_amg atan2_amg 6200 # endif 6201 # ifdef cos 6202 # define F_cos_amg cos_amg 6203 # endif 6204 # ifdef exp 6205 # define F_exp_amg exp_amg 6206 # endif 6207 # ifdef log 6208 # define F_log_amg log_amg 6209 # endif 6210 # ifdef pow 6211 # define F_pow_amg pow_amg 6212 # endif 6213 # ifdef sin 6214 # define F_sin_amg sin_amg 6215 # endif 6216 # ifdef sqrt 6217 # define F_sqrt_amg sqrt_amg 6218 # endif 6219 #endif /* _FASTMATH */ 6220 6221 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \ 6222 PERLDBf_NOOPT | PERLDBf_INTER | \ 6223 PERLDBf_SUBLINE| PERLDBf_SINGLE| \ 6224 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \ 6225 PERLDBf_SAVESRC) 6226 /* No _NONAME, _GOTO */ 6227 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */ 6228 #define PERLDBf_LINE 0x02 /* Keep line # */ 6229 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */ 6230 #define PERLDBf_INTER 0x08 /* Preserve more data for 6231 later inspections */ 6232 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */ 6233 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */ 6234 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */ 6235 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */ 6236 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */ 6237 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */ 6238 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */ 6239 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */ 6240 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */ 6241 6242 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB) 6243 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE) 6244 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT) 6245 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER) 6246 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE) 6247 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE) 6248 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME) 6249 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO) 6250 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL) 6251 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON) 6252 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC) 6253 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS) 6254 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID) 6255 6256 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC)) 6257 6258 #ifdef USE_ITHREADS 6259 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex) 6260 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex) 6261 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex) 6262 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex) 6263 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex) 6264 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex) 6265 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex) 6266 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex) 6267 #else 6268 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP 6269 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP 6270 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP 6271 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP 6272 # define USER_PROP_MUTEX_INIT NOOP 6273 # define USER_PROP_MUTEX_LOCK NOOP 6274 # define USER_PROP_MUTEX_UNLOCK NOOP 6275 # define USER_PROP_MUTEX_TERM NOOP 6276 #endif 6277 6278 #ifdef USE_LOCALE /* These locale things are all subject to change */ 6279 6280 /* Returns TRUE if the plain locale pragma without a parameter is in effect. 6281 * */ 6282 # define IN_LOCALE_RUNTIME (PL_curcop \ 6283 && CopHINTS_get(PL_curcop) & HINT_LOCALE) 6284 6285 /* Returns TRUE if either form of the locale pragma is in effect */ 6286 # define IN_SOME_LOCALE_FORM_RUNTIME \ 6287 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL)) 6288 6289 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE) 6290 # define IN_SOME_LOCALE_FORM_COMPILETIME \ 6291 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL)) 6292 6293 /* 6294 =head1 Locale-related functions and macros 6295 6296 =for apidoc Amn|bool|IN_LOCALE 6297 6298 Evaluates to TRUE if the plain locale pragma without a parameter (S<C<use 6299 locale>>) is in effect. 6300 6301 =for apidoc Amn|bool|IN_LOCALE_COMPILETIME 6302 6303 Evaluates to TRUE if, when compiling a perl program (including an C<eval>) if 6304 the plain locale pragma without a parameter (S<C<use locale>>) is in effect. 6305 6306 =for apidoc Amn|bool|IN_LOCALE_RUNTIME 6307 6308 Evaluates to TRUE if, when executing a perl program (including an C<eval>) if 6309 the plain locale pragma without a parameter (S<C<use locale>>) is in effect. 6310 6311 =cut 6312 */ 6313 6314 # define IN_LOCALE \ 6315 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME) 6316 # define IN_SOME_LOCALE_FORM \ 6317 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \ 6318 : IN_SOME_LOCALE_FORM_RUNTIME) 6319 6320 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME 6321 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME 6322 6323 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL) 6324 # define IN_LC_PARTIAL_RUNTIME \ 6325 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL) 6326 6327 # define IN_LC_COMPILETIME(category) \ 6328 ( IN_LC_ALL_COMPILETIME \ 6329 || ( IN_LC_PARTIAL_COMPILETIME \ 6330 && Perl__is_in_locale_category(aTHX_ TRUE, (category)))) 6331 # define IN_LC_RUNTIME(category) \ 6332 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \ 6333 && Perl__is_in_locale_category(aTHX_ FALSE, (category)))) 6334 # define IN_LC(category) \ 6335 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category)) 6336 6337 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE) 6338 6339 /* This internal macro should be called from places that operate under 6340 * locale rules. If there is a problem with the current locale that 6341 * hasn't been raised yet, it will output a warning this time. Because 6342 * this will so rarely be true, there is no point to optimize for time; 6343 * instead it makes sense to minimize space used and do all the work in 6344 * the rarely called function */ 6345 # ifdef USE_LOCALE_CTYPE 6346 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \ 6347 STMT_START { \ 6348 if (UNLIKELY(PL_warn_locale)) { \ 6349 Perl__warn_problematic_locale(); \ 6350 } \ 6351 } STMT_END 6352 # else 6353 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE 6354 # endif 6355 6356 6357 /* These two internal macros are called when a warning should be raised, 6358 * and will do so if enabled. The first takes a single code point 6359 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded 6360 * string, and an end position which it won't try to read past */ 6361 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \ 6362 STMT_START { \ 6363 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \ 6364 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \ 6365 "Wide character (U+%" UVXf ") in %s",\ 6366 (UV) cp, OP_DESC(PL_op)); \ 6367 } \ 6368 } STMT_END 6369 6370 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \ 6371 STMT_START { /* Check if to warn before doing the conversion work */\ 6372 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \ 6373 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \ 6374 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \ 6375 "Wide character (U+%" UVXf ") in %s", \ 6376 (cp == 0) \ 6377 ? UNICODE_REPLACEMENT \ 6378 : (UV) cp, \ 6379 OP_DESC(PL_op)); \ 6380 } \ 6381 } STMT_END 6382 6383 # endif /* PERL_CORE or PERL_IN_XSUB_RE */ 6384 #else /* No locale usage */ 6385 # define IN_LOCALE_RUNTIME 0 6386 # define IN_SOME_LOCALE_FORM_RUNTIME 0 6387 # define IN_LOCALE_COMPILETIME 0 6388 # define IN_SOME_LOCALE_FORM_COMPILETIME 0 6389 # define IN_LOCALE 0 6390 # define IN_SOME_LOCALE_FORM 0 6391 # define IN_LC_ALL_COMPILETIME 0 6392 # define IN_LC_ALL_RUNTIME 0 6393 # define IN_LC_PARTIAL_COMPILETIME 0 6394 # define IN_LC_PARTIAL_RUNTIME 0 6395 # define IN_LC_COMPILETIME(category) 0 6396 # define IN_LC_RUNTIME(category) 0 6397 # define IN_LC(category) 0 6398 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE 6399 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) 6400 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c) 6401 #endif 6402 6403 6404 /* Locale/thread synchronization macros. These aren't needed if using 6405 * thread-safe locale operations, except if something is broken */ 6406 #if defined(USE_LOCALE) \ 6407 && defined(USE_ITHREADS) \ 6408 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV)) 6409 6410 /* We have a locale object holding the 'C' locale for Posix 2008 */ 6411 # ifndef USE_POSIX_2008_LOCALE 6412 # define _LOCALE_TERM_POSIX_2008 NOOP 6413 # else 6414 # define _LOCALE_TERM_POSIX_2008 \ 6415 STMT_START { \ 6416 if (PL_C_locale_obj) { \ 6417 /* Make sure we aren't using the locale \ 6418 * space we are about to free */ \ 6419 uselocale(LC_GLOBAL_LOCALE); \ 6420 freelocale(PL_C_locale_obj); \ 6421 PL_C_locale_obj = (locale_t) NULL; \ 6422 } \ 6423 } STMT_END 6424 # endif 6425 6426 /* This is used as a generic lock for locale operations. For example this is 6427 * used when calling nl_langinfo() so that another thread won't zap the 6428 * contents of its buffer before it gets saved; and it's called when changing 6429 * the locale of LC_MESSAGES. On some systems the latter can cause the 6430 * nl_langinfo buffer to be zapped under a race condition. 6431 * 6432 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock 6433 * should be contained entirely within the locked portion of LC_NUMERIC. This 6434 * mutex should be used only in very short sections of code, while 6435 * LC_NUMERIC_LOCK may span more operations. By always following this 6436 * convention, deadlock should be impossible. But if necessary, the two 6437 * mutexes could be combined. 6438 * 6439 * Actually, the two macros just below with the '_V' suffixes are used in just 6440 * a few places where there is a broken localeconv(), but otherwise things are 6441 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and 6442 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */ 6443 # define LOCALE_LOCK_V \ 6444 STMT_START { \ 6445 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6446 "%s: %d: locking locale\n", __FILE__, __LINE__)); \ 6447 MUTEX_LOCK(&PL_locale_mutex); \ 6448 } STMT_END 6449 # define LOCALE_UNLOCK_V \ 6450 STMT_START { \ 6451 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6452 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \ 6453 MUTEX_UNLOCK(&PL_locale_mutex); \ 6454 } STMT_END 6455 6456 /* On windows, we just need the mutex for LOCALE_LOCK */ 6457 # ifdef TS_W32_BROKEN_LOCALECONV 6458 # define LOCALE_LOCK NOOP 6459 # define LOCALE_UNLOCK NOOP 6460 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex); 6461 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex) 6462 # define LC_NUMERIC_LOCK(cond) 6463 # define LC_NUMERIC_UNLOCK 6464 # else 6465 # define LOCALE_LOCK LOCALE_LOCK_V 6466 # define LOCALE_UNLOCK LOCALE_UNLOCK_V 6467 6468 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008) 6469 * systems */ 6470 # define LOCALE_INIT STMT_START { \ 6471 MUTEX_INIT(&PL_locale_mutex); \ 6472 MUTEX_INIT(&PL_lc_numeric_mutex); \ 6473 } STMT_END 6474 6475 # define LOCALE_TERM STMT_START { \ 6476 MUTEX_DESTROY(&PL_locale_mutex); \ 6477 MUTEX_DESTROY(&PL_lc_numeric_mutex); \ 6478 _LOCALE_TERM_POSIX_2008; \ 6479 } STMT_END 6480 6481 /* This mutex is used to create critical sections where we want the 6482 * LC_NUMERIC locale to be locked into either the C (standard) locale, or 6483 * the underlying locale, so that other threads interrupting this one don't 6484 * change it to the wrong state before we've had a chance to complete our 6485 * operation. It can stay locked over an entire printf operation, for 6486 * example. And so is made distinct from the LOCALE_LOCK mutex. 6487 * 6488 * This simulates kind of a general semaphore. The current thread will 6489 * lock the mutex if the per-thread variable is zero, and then increments 6490 * that variable. Each corresponding UNLOCK decrements the variable until 6491 * it is 0, at which point it actually unlocks the mutex. Since the 6492 * variable is per-thread, there is no race with other threads. 6493 * 6494 * The single argument is a condition to test for, and if true, to panic, 6495 * as this would be an attempt to complement the LC_NUMERIC state, and 6496 * we're not supposed to because it's locked. 6497 * 6498 * Clang improperly gives warnings for this, if not silenced: 6499 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks 6500 * */ 6501 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \ 6502 CLANG_DIAG_IGNORE(-Wthread-safety) \ 6503 STMT_START { \ 6504 if (PL_lc_numeric_mutex_depth <= 0) { \ 6505 MUTEX_LOCK(&PL_lc_numeric_mutex); \ 6506 PL_lc_numeric_mutex_depth = 1; \ 6507 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6508 "%s: %d: locking lc_numeric; depth=1\n", \ 6509 __FILE__, __LINE__)); \ 6510 } \ 6511 else { \ 6512 PL_lc_numeric_mutex_depth++; \ 6513 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6514 "%s: %d: avoided lc_numeric_lock; new depth=%d\n", \ 6515 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \ 6516 if (cond_to_panic_if_already_locked) { \ 6517 Perl_croak_nocontext("panic: %s: %d: Trying to change" \ 6518 " LC_NUMERIC incompatibly", \ 6519 __FILE__, __LINE__); \ 6520 } \ 6521 } \ 6522 } STMT_END 6523 6524 # define LC_NUMERIC_UNLOCK \ 6525 STMT_START { \ 6526 if (PL_lc_numeric_mutex_depth <= 1) { \ 6527 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \ 6528 PL_lc_numeric_mutex_depth = 0; \ 6529 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6530 "%s: %d: unlocking lc_numeric; depth=0\n", \ 6531 __FILE__, __LINE__)); \ 6532 } \ 6533 else { \ 6534 PL_lc_numeric_mutex_depth--; \ 6535 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6536 "%s: %d: avoided lc_numeric_unlock; new depth=%d\n",\ 6537 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \ 6538 } \ 6539 } STMT_END \ 6540 CLANG_DIAG_RESTORE 6541 6542 # endif /* End of needs locking LC_NUMERIC */ 6543 #else /* Below is no locale sync needed */ 6544 # define LOCALE_INIT 6545 # define LOCALE_LOCK 6546 # define LOCALE_LOCK_V 6547 # define LOCALE_UNLOCK 6548 # define LOCALE_UNLOCK_V 6549 # define LC_NUMERIC_LOCK(cond) 6550 # define LC_NUMERIC_UNLOCK 6551 # define LOCALE_TERM 6552 #endif 6553 6554 #ifdef USE_LOCALE_NUMERIC 6555 6556 /* These macros are for toggling between the underlying locale (UNDERLYING or 6557 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C 6558 * locale if the underlying locale is indistinguishable from it in the numeric 6559 * operations used by Perl, namely the decimal point, and even the thousands 6560 * separator.) 6561 6562 =head1 Locale-related functions and macros 6563 6564 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION 6565 6566 This macro should be used as a statement. It declares a private variable 6567 (whose name begins with an underscore) that is needed by the other macros in 6568 this section. Failing to include this correctly should lead to a syntax error. 6569 For compatibility with C89 C compilers it should be placed in a block before 6570 any executable statements. 6571 6572 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING 6573 6574 This is used by XS code that is C<LC_NUMERIC> locale-aware to force the 6575 locale for category C<LC_NUMERIC> to be what perl thinks is the current 6576 underlying locale. (The perl interpreter could be wrong about what the 6577 underlying locale actually is if some C or XS code has called the C library 6578 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling 6579 this macro will update perl's records.) 6580 6581 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 6582 declare at compile time a private variable used by this macro. This macro 6583 should be called as a single statement, not an expression, but with an empty 6584 argument list, like this: 6585 6586 { 6587 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6588 ... 6589 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING(); 6590 ... 6591 RESTORE_LC_NUMERIC(); 6592 ... 6593 } 6594 6595 The private variable is used to save the current locale state, so 6596 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it. 6597 6598 On threaded perls not operating with thread-safe functionality, this macro uses 6599 a mutex to force a critical section. Therefore the matching RESTORE should be 6600 close by, and guaranteed to be called. 6601 6602 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED 6603 6604 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware. 6605 This locale category is generally kept set to a locale where the decimal radix 6606 character is a dot, and the separator between groups of digits is empty. This 6607 is because most XS code that reads floating point numbers is expecting them to 6608 have this syntax. 6609 6610 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be 6611 aware of locale if the call to the XS or C code from the Perl program is 6612 from within the scope of a S<C<use locale>>; or to ignore locale if the call is 6613 instead from outside such scope. 6614 6615 This macro is the start of wrapping the C or XS code; the wrap ending is done 6616 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise 6617 the state can be changed that will adversely affect other XS code. 6618 6619 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 6620 declare at compile time a private variable used by this macro. This macro 6621 should be called as a single statement, not an expression, but with an empty 6622 argument list, like this: 6623 6624 { 6625 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6626 ... 6627 STORE_LC_NUMERIC_SET_TO_NEEDED(); 6628 ... 6629 RESTORE_LC_NUMERIC(); 6630 ... 6631 } 6632 6633 On threaded perls not operating with thread-safe functionality, this macro uses 6634 a mutex to force a critical section. Therefore the matching RESTORE should be 6635 close by, and guaranteed to be called; see L</WITH_LC_NUMERIC_SET_TO_NEEDED> 6636 for a more contained way to ensure that. 6637 6638 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric 6639 6640 Same as L</STORE_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided 6641 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's 6642 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints> 6643 cannot have changed since the precalculation. 6644 6645 =for apidoc Am|void|RESTORE_LC_NUMERIC 6646 6647 This is used in conjunction with one of the macros 6648 L</STORE_LC_NUMERIC_SET_TO_NEEDED> 6649 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the 6650 C<LC_NUMERIC> state. 6651 6652 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 6653 declare at compile time a private variable used by this macro and the two 6654 C<STORE> ones. This macro should be called as a single statement, not an 6655 expression, but with an empty argument list, like this: 6656 6657 { 6658 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6659 ... 6660 RESTORE_LC_NUMERIC(); 6661 ... 6662 } 6663 6664 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED|block 6665 6666 This macro invokes the supplied statement or block within the context 6667 of a L</STORE_LC_NUMERIC_SET_TO_NEEDED> .. L</RESTORE_LC_NUMERIC> pair 6668 if required, so eg: 6669 6670 WITH_LC_NUMERIC_SET_TO_NEEDED( 6671 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis) 6672 ); 6673 6674 is equivalent to: 6675 6676 { 6677 #ifdef USE_LOCALE_NUMERIC 6678 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6679 STORE_LC_NUMERIC_SET_TO_NEEDED(); 6680 #endif 6681 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis); 6682 #ifdef USE_LOCALE_NUMERIC 6683 RESTORE_LC_NUMERIC(); 6684 #endif 6685 } 6686 6687 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric|block 6688 6689 Same as L</WITH_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided 6690 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's 6691 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints> 6692 cannot have changed since the precalculation. 6693 6694 =cut 6695 6696 */ 6697 6698 /* If the underlying numeric locale has a non-dot decimal point or has a 6699 * non-empty floating point thousands separator, the current locale is instead 6700 * generally kept in the C locale instead of that underlying locale. The 6701 * current status is known by looking at two words. One is non-zero if the 6702 * current numeric locale is the standard C/POSIX one or is indistinguishable 6703 * from C. The other is non-zero if the current locale is the underlying 6704 * locale. Both can be non-zero if, as often happens, the underlying locale is 6705 * C or indistinguishable from it. 6706 * 6707 * khw believes the reason for the variables instead of the bits in a single 6708 * word is to avoid having to have masking instructions. */ 6709 6710 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard) 6711 6712 /* We can lock the category to stay in the C locale, making requests to the 6713 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2. 6714 * */ 6715 # define _NOT_IN_NUMERIC_UNDERLYING \ 6716 (! PL_numeric_underlying && PL_numeric_standard < 2) 6717 6718 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \ 6719 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL 6720 6721 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in) \ 6722 STMT_START { \ 6723 bool _in_lc_numeric = (in); \ 6724 LC_NUMERIC_LOCK( \ 6725 ( ( _in_lc_numeric && _NOT_IN_NUMERIC_UNDERLYING) \ 6726 || (! _in_lc_numeric && _NOT_IN_NUMERIC_STANDARD))); \ 6727 if (_in_lc_numeric) { \ 6728 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 6729 Perl_set_numeric_underlying(aTHX); \ 6730 _restore_LC_NUMERIC_function \ 6731 = &Perl_set_numeric_standard; \ 6732 } \ 6733 } \ 6734 else { \ 6735 if (_NOT_IN_NUMERIC_STANDARD) { \ 6736 Perl_set_numeric_standard(aTHX); \ 6737 _restore_LC_NUMERIC_function \ 6738 = &Perl_set_numeric_underlying; \ 6739 } \ 6740 } \ 6741 } STMT_END 6742 6743 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \ 6744 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC)) 6745 6746 # define RESTORE_LC_NUMERIC() \ 6747 STMT_START { \ 6748 if (_restore_LC_NUMERIC_function) { \ 6749 _restore_LC_NUMERIC_function(aTHX); \ 6750 } \ 6751 LC_NUMERIC_UNLOCK; \ 6752 } STMT_END 6753 6754 /* The next two macros set unconditionally. These should be rarely used, and 6755 * only after being sure that this is what is needed */ 6756 # define SET_NUMERIC_STANDARD() \ 6757 STMT_START { \ 6758 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6759 "%s: %d: lc_numeric standard=%d\n", \ 6760 __FILE__, __LINE__, PL_numeric_standard)); \ 6761 Perl_set_numeric_standard(aTHX); \ 6762 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6763 "%s: %d: lc_numeric standard=%d\n", \ 6764 __FILE__, __LINE__, PL_numeric_standard)); \ 6765 } STMT_END 6766 6767 # define SET_NUMERIC_UNDERLYING() \ 6768 STMT_START { \ 6769 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 6770 Perl_set_numeric_underlying(aTHX); \ 6771 } \ 6772 } STMT_END 6773 6774 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with 6775 * the RESTORE_foo ones called to switch back, but only if need be */ 6776 # define STORE_LC_NUMERIC_SET_STANDARD() \ 6777 STMT_START { \ 6778 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \ 6779 if (_NOT_IN_NUMERIC_STANDARD) { \ 6780 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\ 6781 Perl_set_numeric_standard(aTHX); \ 6782 } \ 6783 } STMT_END 6784 6785 /* Rarely, we want to change to the underlying locale even outside of 'use 6786 * locale'. This is principally in the POSIX:: functions */ 6787 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \ 6788 STMT_START { \ 6789 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \ 6790 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 6791 Perl_set_numeric_underlying(aTHX); \ 6792 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \ 6793 } \ 6794 } STMT_END 6795 6796 /* Lock/unlock to the C locale until unlock is called. This needs to be 6797 * recursively callable. [perl #128207] */ 6798 # define LOCK_LC_NUMERIC_STANDARD() \ 6799 STMT_START { \ 6800 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6801 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \ 6802 __FILE__, __LINE__, PL_numeric_standard + 1)); \ 6803 __ASSERT_(PL_numeric_standard) \ 6804 PL_numeric_standard++; \ 6805 } STMT_END 6806 6807 # define UNLOCK_LC_NUMERIC_STANDARD() \ 6808 STMT_START { \ 6809 if (PL_numeric_standard > 1) { \ 6810 PL_numeric_standard--; \ 6811 } \ 6812 else { \ 6813 assert(0); \ 6814 } \ 6815 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6816 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \ 6817 __FILE__, __LINE__, PL_numeric_standard)); \ 6818 } STMT_END 6819 6820 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \ 6821 STMT_START { \ 6822 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; \ 6823 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric); \ 6824 block; \ 6825 RESTORE_LC_NUMERIC(); \ 6826 } STMT_END; 6827 6828 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \ 6829 WITH_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC), block) 6830 6831 #else /* !USE_LOCALE_NUMERIC */ 6832 6833 # define SET_NUMERIC_STANDARD() 6834 # define SET_NUMERIC_UNDERLYING() 6835 # define IS_NUMERIC_RADIX(a, b) (0) 6836 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION dNOOP 6837 # define STORE_LC_NUMERIC_SET_STANDARD() 6838 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() 6839 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric) 6840 # define STORE_LC_NUMERIC_SET_TO_NEEDED() 6841 # define RESTORE_LC_NUMERIC() 6842 # define LOCK_LC_NUMERIC_STANDARD() 6843 # define UNLOCK_LC_NUMERIC_STANDARD() 6844 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \ 6845 STMT_START { block; } STMT_END 6846 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \ 6847 STMT_START { block; } STMT_END 6848 6849 #endif /* !USE_LOCALE_NUMERIC */ 6850 6851 #define Atof my_atof 6852 6853 /* 6854 6855 =head1 Numeric functions 6856 6857 =for apidoc AmTR|NV|Strtod|NN const char * const s|NULLOK char ** e 6858 6859 This is a synonym for L</my_strtod>. 6860 6861 =for apidoc AmTR|NV|Strtol|NN const char * const s|NULLOK char ** e|int base 6862 6863 Platform and configuration independent C<strtol>. This expands to the 6864 appropriate C<strotol>-like function based on the platform and F<Configure> 6865 options>. For example it could expand to C<strtoll> or C<strtoq> instead of 6866 C<strtol>. 6867 6868 =for apidoc AmTR|NV|Strtoul|NN const char * const s|NULLOK char ** e|int base 6869 6870 Platform and configuration independent C<strtoul>. This expands to the 6871 appropriate C<strotoul>-like function based on the platform and F<Configure> 6872 options>. For example it could expand to C<strtoull> or C<strtouq> instead of 6873 C<strtoul>. 6874 6875 =cut 6876 6877 */ 6878 6879 #define Strtod my_strtod 6880 6881 #if defined(HAS_STRTOD) \ 6882 || defined(USE_QUADMATH) \ 6883 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \ 6884 && defined(USE_LONG_DOUBLE)) 6885 # define Perl_strtod Strtod 6886 #endif 6887 6888 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \ 6889 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6890 # ifdef __hpux 6891 # define strtoll __strtoll /* secret handshake */ 6892 # endif 6893 # if defined(WIN64) && defined(_MSC_VER) 6894 # define strtoll _strtoi64 /* secret handshake */ 6895 # endif 6896 # if !defined(Strtol) && defined(HAS_STRTOLL) 6897 # define Strtol strtoll 6898 # endif 6899 # if !defined(Strtol) && defined(HAS_STRTOQ) 6900 # define Strtol strtoq 6901 # endif 6902 /* is there atoq() anywhere? */ 6903 #endif 6904 #if !defined(Strtol) && defined(HAS_STRTOL) 6905 # define Strtol strtol 6906 #endif 6907 #ifndef Atol 6908 /* It would be more fashionable to use Strtol() to define atol() 6909 * (as is done for Atoul(), see below) but for backward compatibility 6910 * we just assume atol(). */ 6911 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \ 6912 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6913 # ifdef WIN64 6914 # define atoll _atoi64 /* secret handshake */ 6915 # endif 6916 # define Atol atoll 6917 # else 6918 # define Atol atol 6919 # endif 6920 #endif 6921 6922 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \ 6923 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6924 # ifdef __hpux 6925 # define strtoull __strtoull /* secret handshake */ 6926 # endif 6927 # if defined(WIN64) && defined(_MSC_VER) 6928 # define strtoull _strtoui64 /* secret handshake */ 6929 # endif 6930 # if !defined(Strtoul) && defined(HAS_STRTOULL) 6931 # define Strtoul strtoull 6932 # endif 6933 # if !defined(Strtoul) && defined(HAS_STRTOUQ) 6934 # define Strtoul strtouq 6935 # endif 6936 /* is there atouq() anywhere? */ 6937 #endif 6938 #if !defined(Strtoul) && defined(HAS_STRTOUL) 6939 # define Strtoul strtoul 6940 #endif 6941 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */ 6942 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b)) 6943 #endif 6944 #ifndef Atoul 6945 # define Atoul(s) Strtoul(s, NULL, 10) 6946 #endif 6947 6948 #define grok_bin(s,lp,fp,rp) \ 6949 grok_bin_oct_hex(s, lp, fp, rp, 1, _CC_BINDIGIT, 'b') 6950 #define grok_oct(s,lp,fp,rp) \ 6951 (*(fp) |= PERL_SCAN_DISALLOW_PREFIX, \ 6952 grok_bin_oct_hex(s, lp, fp, rp, 3, _CC_OCTDIGIT, '\0')) 6953 #define grok_hex(s,lp,fp,rp) \ 6954 grok_bin_oct_hex(s, lp, fp, rp, 4, _CC_XDIGIT, 'x') 6955 6956 #ifndef PERL_SCRIPT_MODE 6957 #define PERL_SCRIPT_MODE "r" 6958 #endif 6959 6960 /* not used. Kept as a NOOP for backcompat */ 6961 #define PERL_STACK_OVERFLOW_CHECK() NOOP 6962 6963 /* 6964 * Some nonpreemptive operating systems find it convenient to 6965 * check for asynchronous conditions after each op execution. 6966 * Keep this check simple, or it may slow down execution 6967 * massively. 6968 */ 6969 6970 #ifndef PERL_MICRO 6971 # ifndef PERL_ASYNC_CHECK 6972 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX) 6973 # endif 6974 #endif 6975 6976 #ifndef PERL_ASYNC_CHECK 6977 # define PERL_ASYNC_CHECK() NOOP 6978 #endif 6979 6980 /* 6981 * On some operating systems, a memory allocation may succeed, 6982 * but put the process too close to the system's comfort limit. 6983 * In this case, PERL_ALLOC_CHECK frees the pointer and sets 6984 * it to NULL. 6985 */ 6986 #ifndef PERL_ALLOC_CHECK 6987 #define PERL_ALLOC_CHECK(p) NOOP 6988 #endif 6989 6990 #ifdef HAS_SEM 6991 # include <sys/ipc.h> 6992 # include <sys/sem.h> 6993 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */ 6994 union semun { 6995 int val; 6996 struct semid_ds *buf; 6997 unsigned short *array; 6998 }; 6999 # endif 7000 # ifdef USE_SEMCTL_SEMUN 7001 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC 7002 union gccbug_semun { 7003 int val; 7004 struct semid_ds *buf; 7005 unsigned short *array; 7006 char __dummy[5]; 7007 }; 7008 # define semun gccbug_semun 7009 # endif 7010 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun) 7011 # elif defined(USE_SEMCTL_SEMID_DS) 7012 # ifdef EXTRA_F_IN_SEMUN_BUF 7013 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff) 7014 # else 7015 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf) 7016 # endif 7017 # endif 7018 #endif 7019 7020 /* 7021 * Boilerplate macros for initializing and accessing interpreter-local 7022 * data from C. All statics in extensions should be reworked to use 7023 * this, if you want to make the extension thread-safe. See 7024 * ext/XS/APItest/APItest.xs for an example of the use of these macros, 7025 * and perlxs.pod for more. 7026 * 7027 * Code that uses these macros is responsible for the following: 7028 * 1. #define MY_CXT_KEY to a unique string, e.g. 7029 * "DynaLoader::_guts" XS_VERSION 7030 * XXX in the current implementation, this string is ignored. 7031 * 2. Declare a typedef named my_cxt_t that is a structure that contains 7032 * all the data that needs to be interpreter-local. 7033 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t. 7034 * 4. Use the MY_CXT_INIT macro such that it is called exactly once 7035 * (typically put in the BOOT: section). 7036 * 5. Use the members of the my_cxt_t structure everywhere as 7037 * MY_CXT.member. 7038 * 6. Use the dMY_CXT macro (a declaration) in all the functions that 7039 * access MY_CXT. 7040 */ 7041 7042 #if defined(PERL_IMPLICIT_CONTEXT) 7043 7044 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure, 7045 * right after the definition (i.e. at file scope). The non-threads 7046 * case below uses it to declare the data as static. */ 7047 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 7048 # define START_MY_CXT 7049 # define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY) 7050 # define MY_CXT_INIT_ARG MY_CXT_KEY 7051 # else 7052 # define START_MY_CXT static int my_cxt_index = -1; 7053 # define MY_CXT_INDEX my_cxt_index 7054 # define MY_CXT_INIT_ARG &my_cxt_index 7055 # endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */ 7056 7057 /* Creates and zeroes the per-interpreter data. 7058 * (We allocate my_cxtp in a Perl SV so that it will be released when 7059 * the interpreter goes away.) */ 7060 # define MY_CXT_INIT \ 7061 my_cxt_t *my_cxtp = \ 7062 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \ 7063 PERL_UNUSED_VAR(my_cxtp) 7064 # define MY_CXT_INIT_INTERP(my_perl) \ 7065 my_cxt_t *my_cxtp = \ 7066 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \ 7067 PERL_UNUSED_VAR(my_cxtp) 7068 7069 /* This declaration should be used within all functions that use the 7070 * interpreter-local data. */ 7071 # define dMY_CXT \ 7072 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX] 7073 # define dMY_CXT_INTERP(my_perl) \ 7074 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX] 7075 7076 /* Clones the per-interpreter data. */ 7077 # define MY_CXT_CLONE \ 7078 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\ 7079 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \ 7080 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \ 7081 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t); 7082 7083 7084 7085 /* This macro must be used to access members of the my_cxt_t structure. 7086 * e.g. MY_CXT.some_data */ 7087 # define MY_CXT (*my_cxtp) 7088 7089 /* Judicious use of these macros can reduce the number of times dMY_CXT 7090 * is used. Use is similar to pTHX, aTHX etc. */ 7091 # define pMY_CXT my_cxt_t *my_cxtp 7092 # define pMY_CXT_ pMY_CXT, 7093 # define _pMY_CXT ,pMY_CXT 7094 # define aMY_CXT my_cxtp 7095 # define aMY_CXT_ aMY_CXT, 7096 # define _aMY_CXT ,aMY_CXT 7097 7098 #else /* PERL_IMPLICIT_CONTEXT */ 7099 7100 # define START_MY_CXT static my_cxt_t my_cxt; 7101 # define dMY_CXT_SV dNOOP 7102 # define dMY_CXT dNOOP 7103 # define dMY_CXT_INTERP(my_perl) dNOOP 7104 # define MY_CXT_INIT NOOP 7105 # define MY_CXT_CLONE NOOP 7106 # define MY_CXT my_cxt 7107 7108 # define pMY_CXT void 7109 # define pMY_CXT_ 7110 # define _pMY_CXT 7111 # define aMY_CXT 7112 # define aMY_CXT_ 7113 # define _aMY_CXT 7114 7115 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */ 7116 7117 #ifdef I_FCNTL 7118 # include <fcntl.h> 7119 #endif 7120 7121 #ifdef __Lynx__ 7122 # include <fcntl.h> 7123 #endif 7124 7125 #ifdef __amigaos4__ 7126 # undef FD_CLOEXEC /* a lie in AmigaOS */ 7127 #endif 7128 7129 #ifdef I_SYS_FILE 7130 # include <sys/file.h> 7131 #endif 7132 7133 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO) 7134 EXTERN_C int flock(int fd, int op); 7135 #endif 7136 7137 #ifndef O_RDONLY 7138 /* Assume UNIX defaults */ 7139 # define O_RDONLY 0000 7140 # define O_WRONLY 0001 7141 # define O_RDWR 0002 7142 # define O_CREAT 0100 7143 #endif 7144 7145 #ifndef O_BINARY 7146 # define O_BINARY 0 7147 #endif 7148 7149 #ifndef O_TEXT 7150 # define O_TEXT 0 7151 #endif 7152 7153 #if O_TEXT != O_BINARY 7154 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop, 7155 * that is, you are somehow DOSish. */ 7156 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__) 7157 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect; 7158 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */ 7159 /* VOS has O_TEXT != O_BINARY, and they have effect, 7160 * but VOS always uses LF, never CRLF. */ 7161 /* If you have O_TEXT different from your O_BINARY but you still are 7162 * not a CRLF shop. */ 7163 # undef PERLIO_USING_CRLF 7164 # else 7165 /* If you really are DOSish. */ 7166 # define PERLIO_USING_CRLF 1 7167 # endif 7168 #endif 7169 7170 #ifdef I_LIBUTIL 7171 # include <libutil.h> /* setproctitle() in some FreeBSDs */ 7172 #endif 7173 7174 #ifndef EXEC_ARGV_CAST 7175 #define EXEC_ARGV_CAST(x) (char **)x 7176 #endif 7177 7178 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not 7179 int). value returned in pointed- 7180 to UV */ 7181 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */ 7182 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */ 7183 #define IS_NUMBER_NEG 0x08 /* leading minus sign */ 7184 #define IS_NUMBER_INFINITY 0x10 /* this is big */ 7185 #define IS_NUMBER_NAN 0x20 /* this is not */ 7186 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */ 7187 7188 /* 7189 =head1 Numeric functions 7190 7191 =for apidoc AmdR|bool|GROK_NUMERIC_RADIX|NN const char **sp|NN const char *send 7192 7193 A synonym for L</grok_numeric_radix> 7194 7195 =cut 7196 */ 7197 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send) 7198 7199 /* Number scan flags. All are used for input, the ones used for output are so 7200 * marked */ 7201 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */ 7202 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */ 7203 7204 /* grok_??? input: ignored; output: found overflow */ 7205 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x04 7206 7207 /* grok_??? don't warn about illegal digits. To preserve total backcompat, 7208 * this isn't set on output if one is found. Instead, see 7209 * PERL_SCAN_NOTIFY_ILLDIGIT. */ 7210 #define PERL_SCAN_SILENT_ILLDIGIT 0x08 7211 7212 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing 7213 and set IS_NUMBER_TRAILING */ 7214 7215 /* These are considered experimental, so not exposed publicly */ 7216 #if defined(PERL_CORE) || defined(PERL_EXT) 7217 /* grok_??? don't warn about very large numbers which are <= UV_MAX; 7218 * output: found such a number */ 7219 # define PERL_SCAN_SILENT_NON_PORTABLE 0x20 7220 7221 /* If this is set on input, and no illegal digit is found, it will be cleared 7222 * on output; otherwise unchanged */ 7223 # define PERL_SCAN_NOTIFY_ILLDIGIT 0x40 7224 7225 /* Don't warn on overflow; output flag still set */ 7226 # define PERL_SCAN_SILENT_OVERFLOW 0x80 7227 7228 /* Forbid a leading underscore, which the other one doesn't */ 7229 # define PERL_SCAN_ALLOW_MEDIAL_UNDERSCORES (0x100|PERL_SCAN_ALLOW_UNDERSCORES) 7230 #endif 7231 7232 7233 /* to let user control profiling */ 7234 #ifdef PERL_GPROF_CONTROL 7235 extern void moncontrol(int); 7236 #define PERL_GPROF_MONCONTROL(x) moncontrol(x) 7237 #else 7238 #define PERL_GPROF_MONCONTROL(x) 7239 #endif 7240 7241 /* ISO 6429 NEL - C1 control NExt Line */ 7242 /* See https://www.unicode.org/unicode/reports/tr13/ */ 7243 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE 7244 7245 #ifndef PIPESOCK_MODE 7246 # define PIPESOCK_MODE 7247 #endif 7248 7249 #ifndef SOCKET_OPEN_MODE 7250 # define SOCKET_OPEN_MODE PIPESOCK_MODE 7251 #endif 7252 7253 #ifndef PIPE_OPEN_MODE 7254 # define PIPE_OPEN_MODE PIPESOCK_MODE 7255 #endif 7256 7257 #define PERL_MAGIC_UTF8_CACHESIZE 2 7258 7259 #define PERL_UNICODE_STDIN_FLAG 0x0001 7260 #define PERL_UNICODE_STDOUT_FLAG 0x0002 7261 #define PERL_UNICODE_STDERR_FLAG 0x0004 7262 #define PERL_UNICODE_IN_FLAG 0x0008 7263 #define PERL_UNICODE_OUT_FLAG 0x0010 7264 #define PERL_UNICODE_ARGV_FLAG 0x0020 7265 #define PERL_UNICODE_LOCALE_FLAG 0x0040 7266 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */ 7267 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100 7268 7269 #define PERL_UNICODE_STD_FLAG \ 7270 (PERL_UNICODE_STDIN_FLAG | \ 7271 PERL_UNICODE_STDOUT_FLAG | \ 7272 PERL_UNICODE_STDERR_FLAG) 7273 7274 #define PERL_UNICODE_INOUT_FLAG \ 7275 (PERL_UNICODE_IN_FLAG | \ 7276 PERL_UNICODE_OUT_FLAG) 7277 7278 #define PERL_UNICODE_DEFAULT_FLAGS \ 7279 (PERL_UNICODE_STD_FLAG | \ 7280 PERL_UNICODE_INOUT_FLAG | \ 7281 PERL_UNICODE_LOCALE_FLAG) 7282 7283 #define PERL_UNICODE_ALL_FLAGS 0x01ff 7284 7285 #define PERL_UNICODE_STDIN 'I' 7286 #define PERL_UNICODE_STDOUT 'O' 7287 #define PERL_UNICODE_STDERR 'E' 7288 #define PERL_UNICODE_STD 'S' 7289 #define PERL_UNICODE_IN 'i' 7290 #define PERL_UNICODE_OUT 'o' 7291 #define PERL_UNICODE_INOUT 'D' 7292 #define PERL_UNICODE_ARGV 'A' 7293 #define PERL_UNICODE_LOCALE 'L' 7294 #define PERL_UNICODE_WIDESYSCALLS 'W' 7295 #define PERL_UNICODE_UTF8CACHEASSERT 'a' 7296 7297 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001 7298 7299 /* 7300 =head1 Numeric functions 7301 7302 =for apidoc Am|int|PERL_ABS|int 7303 7304 Typeless C<abs> or C<fabs>, I<etc>. (The usage below indicates it is for 7305 integers, but it works for any type.) Use instead of these, since the C 7306 library ones force their argument to be what it is expecting, potentially 7307 leading to disaster. But also beware that this evaluates its argument twice, 7308 so no C<x++>. 7309 7310 =cut 7311 */ 7312 7313 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x)) 7314 7315 #if defined(__DECC) && defined(__osf__) 7316 #pragma message disable (mainparm) /* Perl uses the envp in main(). */ 7317 #endif 7318 7319 #define do_open(g, n, l, a, rm, rp, sf) \ 7320 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0) 7321 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION 7322 # define do_exec(cmd) do_exec3(cmd,0,0) 7323 #endif 7324 #ifdef OS2 7325 # define do_aexec Perl_do_aexec 7326 #else 7327 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0) 7328 #endif 7329 7330 7331 /* 7332 =head1 Miscellaneous Functions 7333 7334 =for apidoc Am|bool|IS_SAFE_SYSCALL|NN const char *pv|STRLEN len|NN const char *what|NN const char *op_name 7335 7336 Same as L</is_safe_syscall>. 7337 7338 =cut 7339 7340 Allows one ending \0 7341 */ 7342 #define IS_SAFE_SYSCALL(p, len, what, op_name) (Perl_is_safe_syscall(aTHX_ (p), (len), (what), (op_name))) 7343 7344 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name)) 7345 7346 #if defined(OEMVS) || defined(__amigaos4__) 7347 #define NO_ENV_ARRAY_IN_MAIN 7348 #endif 7349 7350 /* These are used by Perl_pv_escape() and Perl_pv_pretty() 7351 * are here so that they are available throughout the core 7352 * NOTE that even though some are for _escape and some for _pretty 7353 * there must not be any clashes as the flags from _pretty are 7354 * passed straight through to _escape. 7355 */ 7356 7357 #define PERL_PV_ESCAPE_QUOTE 0x000001 7358 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE 7359 7360 #define PERL_PV_PRETTY_ELLIPSES 0x000002 7361 #define PERL_PV_PRETTY_LTGT 0x000004 7362 #define PERL_PV_PRETTY_EXACTSIZE 0x000008 7363 7364 #define PERL_PV_ESCAPE_UNI 0x000100 7365 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200 7366 #define PERL_PV_ESCAPE_NONASCII 0x000400 7367 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800 7368 7369 #define PERL_PV_ESCAPE_ALL 0x001000 7370 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000 7371 #define PERL_PV_ESCAPE_NOCLEAR 0x004000 7372 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR 7373 #define PERL_PV_ESCAPE_RE 0x008000 7374 7375 #define PERL_PV_ESCAPE_DWIM 0x010000 7376 7377 7378 /* used by pv_display in dump.c*/ 7379 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE 7380 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII 7381 7382 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \ 7383 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \ 7384 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT 7385 # define DOUBLE_IS_VAX_FLOAT 7386 #else 7387 # define DOUBLE_IS_IEEE_FORMAT 7388 #endif 7389 7390 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \ 7391 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \ 7392 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7393 # define DOUBLE_LITTLE_ENDIAN 7394 #endif 7395 7396 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \ 7397 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \ 7398 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7399 # define DOUBLE_BIG_ENDIAN 7400 #endif 7401 7402 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \ 7403 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 7404 # define DOUBLE_MIX_ENDIAN 7405 #endif 7406 7407 /* The VAX fp formats are neither consistently little-endian nor 7408 * big-endian, and neither are they really IEEE-mixed endian like 7409 * the mixed-endian ARM IEEE formats (with swapped bytes). 7410 * Ultimately, the VAX format came from the PDP-11. 7411 * 7412 * The ordering of the parts in VAX floats is quite vexing. 7413 * In the below the fraction_n are the mantissa bits. 7414 * 7415 * The fraction_1 is the most significant (numbering as by DEC/Digital), 7416 * while the rightmost bit in each fraction is the least significant: 7417 * in other words, big-endian bit order within the fractions. 7418 * 7419 * The fraction segments themselves would be big-endianly, except that 7420 * within 32 bit segments the less significant half comes first, the more 7421 * significant after, except that in the format H (used for long doubles) 7422 * the first fraction segment is alone, because the exponent is wider. 7423 * This means for example that both the most and the least significant 7424 * bits can be in the middle of the floats, not at either end. 7425 * 7426 * References: 7427 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm 7428 * http://www.quadibloc.com/comp/cp0201.htm 7429 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html 7430 * (somebody at HP should be fired for the URLs) 7431 * 7432 * F fraction_2:16 sign:1 exp:8 fraction_1:7 7433 * (exponent bias 128, hidden first one-bit) 7434 * 7435 * D fraction_2:16 sign:1 exp:8 fraction_1:7 7436 * fraction_4:16 fraction_3:16 7437 * (exponent bias 128, hidden first one-bit) 7438 * 7439 * G fraction_2:16 sign:1 exp:11 fraction_1:4 7440 * fraction_4:16 fraction_3:16 7441 * (exponent bias 1024, hidden first one-bit) 7442 * 7443 * H fraction_1:16 sign:1 exp:15 7444 * fraction_3:16 fraction_2:16 7445 * fraction_5:16 fraction_4:16 7446 * fraction_7:16 fraction_6:16 7447 * (exponent bias 16384, hidden first one-bit) 7448 * (available only on VAX, and only on Fortran?) 7449 * 7450 * The formats S, T and X are available on the Alpha (and Itanium, 7451 * also known as I64/IA64) and are equivalent with the IEEE-754 formats 7452 * binary32, binary64, and binary128 (commonly: float, double, long double). 7453 * 7454 * S sign:1 exp:8 mantissa:23 7455 * (exponent bias 127, hidden first one-bit) 7456 * 7457 * T sign:1 exp:11 mantissa:52 7458 * (exponent bias 1022, hidden first one-bit) 7459 * 7460 * X sign:1 exp:15 mantissa:112 7461 * (exponent bias 16382, hidden first one-bit) 7462 * 7463 */ 7464 7465 #ifdef DOUBLE_IS_VAX_FLOAT 7466 # define DOUBLE_VAX_ENDIAN 7467 #endif 7468 7469 #ifdef DOUBLE_IS_IEEE_FORMAT 7470 /* All the basic IEEE formats have the implicit bit, 7471 * except for the x86 80-bit extended formats, which will undef this. 7472 * Also note that the IEEE 754 subnormals (formerly known as denormals) 7473 * do not have the implicit bit of one. */ 7474 # define NV_IMPLICIT_BIT 7475 #endif 7476 7477 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE 7478 7479 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \ 7480 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 7481 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 7482 # define LONGDOUBLE_LITTLE_ENDIAN 7483 # endif 7484 7485 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \ 7486 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \ 7487 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 7488 # define LONGDOUBLE_BIG_ENDIAN 7489 # endif 7490 7491 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 7492 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7493 # define LONGDOUBLE_MIX_ENDIAN 7494 # endif 7495 7496 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 7497 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 7498 # define LONGDOUBLE_X86_80_BIT 7499 # ifdef USE_LONG_DOUBLE 7500 # undef NV_IMPLICIT_BIT 7501 # define NV_X86_80_BIT 7502 # endif 7503 # endif 7504 7505 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \ 7506 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \ 7507 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 7508 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7509 # define LONGDOUBLE_DOUBLEDOUBLE 7510 # endif 7511 7512 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT 7513 # define LONGDOUBLE_VAX_ENDIAN 7514 # endif 7515 7516 #endif /* LONG_DOUBLEKIND */ 7517 7518 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */ 7519 # if defined(DOUBLE_LITTLE_ENDIAN) 7520 # define NV_LITTLE_ENDIAN 7521 # elif defined(DOUBLE_BIG_ENDIAN) 7522 # define NV_BIG_ENDIAN 7523 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */ 7524 # define NV_MIX_ENDIAN 7525 # endif 7526 #elif NVSIZE == DOUBLESIZE 7527 # ifdef DOUBLE_LITTLE_ENDIAN 7528 # define NV_LITTLE_ENDIAN 7529 # endif 7530 # ifdef DOUBLE_BIG_ENDIAN 7531 # define NV_BIG_ENDIAN 7532 # endif 7533 # ifdef DOUBLE_MIX_ENDIAN 7534 # define NV_MIX_ENDIAN 7535 # endif 7536 # ifdef DOUBLE_VAX_ENDIAN 7537 # define NV_VAX_ENDIAN 7538 # endif 7539 #elif NVSIZE == LONG_DOUBLESIZE 7540 # ifdef LONGDOUBLE_LITTLE_ENDIAN 7541 # define NV_LITTLE_ENDIAN 7542 # endif 7543 # ifdef LONGDOUBLE_BIG_ENDIAN 7544 # define NV_BIG_ENDIAN 7545 # endif 7546 # ifdef LONGDOUBLE_MIX_ENDIAN 7547 # define NV_MIX_ENDIAN 7548 # endif 7549 # ifdef LONGDOUBLE_VAX_ENDIAN 7550 # define NV_VAX_ENDIAN 7551 # endif 7552 #endif 7553 7554 /* We have somehow managed not to define the denormal/subnormal 7555 * detection. 7556 * 7557 * This may happen if the compiler doesn't expose the C99 math like 7558 * the fpclassify() without some special switches. Perl tries to 7559 * stay C89, so for example -std=c99 is not an option. 7560 * 7561 * The Perl_isinf() and Perl_isnan() should have been defined even if 7562 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes 7563 * from the C89 DBL_MIN or moral equivalent. */ 7564 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN) 7565 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN) 7566 #endif 7567 7568 /* This is not a great fallback: subnormals tests will fail, 7569 * but at least Perl will link and 99.999% of tests will work. */ 7570 #if !defined(Perl_fp_class_denorm) 7571 # define Perl_fp_class_denorm(x) FALSE 7572 #endif 7573 7574 #ifdef DOUBLE_IS_IEEE_FORMAT 7575 # define DOUBLE_HAS_INF 7576 # define DOUBLE_HAS_NAN 7577 #endif 7578 7579 #ifdef DOUBLE_HAS_NAN 7580 7581 START_EXTERN_C 7582 7583 #ifdef DOINIT 7584 7585 /* PL_inf and PL_nan initialization. 7586 * 7587 * For inf and nan initialization the ultimate fallback is dividing 7588 * one or zero by zero: however, some compilers will warn or even fail 7589 * on divide-by-zero, but hopefully something earlier will work. 7590 * 7591 * If you are thinking of using HUGE_VAL for infinity, or using 7592 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)), 7593 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX, 7594 * and the math functions might be just generating DBL_MAX, or even zero. 7595 * 7596 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF). 7597 * Though logically correct, some compilers (like Visual C 2003) 7598 * falsely misoptimize that to zero (x-x is always zero, right?) 7599 * 7600 * Finally, note that not all floating point formats define Inf (or NaN). 7601 * For the infinity a large number may be used instead. Operations that 7602 * under the IEEE floating point would return Inf or NaN may return 7603 * either large numbers (positive or negative), or they may cause 7604 * a floating point exception or some other fault. 7605 */ 7606 7607 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */ 7608 # ifndef USE_CPLUSPLUS 7609 GCC_DIAG_IGNORE_DECL(-Wc++-compat); 7610 # endif 7611 7612 # ifdef USE_QUADMATH 7613 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time 7614 * constant. */ 7615 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q }; 7616 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES) 7617 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } }; 7618 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES) 7619 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } }; 7620 # else 7621 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE) 7622 # if defined(LDBL_INFINITY) 7623 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY }; 7624 # elif defined(LDBL_INF) 7625 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF }; 7626 # elif defined(INFINITY) 7627 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY }; 7628 # elif defined(INF) 7629 INFNAN_NV_U8_DECL PL_inf = { (NV)INF }; 7630 # else 7631 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */ 7632 # endif 7633 # else 7634 # if defined(DBL_INFINITY) 7635 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY }; 7636 # elif defined(DBL_INF) 7637 INFNAN_NV_U8_DECL PL_inf = { DBL_INF }; 7638 # elif defined(INFINITY) /* C99 */ 7639 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY }; 7640 # elif defined(INF) 7641 INFNAN_NV_U8_DECL PL_inf = { (NV)INF }; 7642 # else 7643 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */ 7644 # endif 7645 # endif 7646 # endif 7647 7648 # ifdef USE_QUADMATH 7649 /* Cannot use nanq("0") for PL_nan because not a compile-time 7650 * constant. */ 7651 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q }; 7652 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES) 7653 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } }; 7654 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES) 7655 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } }; 7656 # else 7657 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE) 7658 # if defined(LDBL_NAN) 7659 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN }; 7660 # elif defined(LDBL_QNAN) 7661 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN }; 7662 # elif defined(NAN) 7663 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN }; 7664 # else 7665 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */ 7666 # endif 7667 # else 7668 # if defined(DBL_NAN) 7669 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN }; 7670 # elif defined(DBL_QNAN) 7671 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN }; 7672 # elif defined(NAN) /* C99 */ 7673 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN }; 7674 # else 7675 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */ 7676 # endif 7677 # endif 7678 # endif 7679 7680 # ifndef USE_CPLUSPLUS 7681 GCC_DIAG_RESTORE_DECL; 7682 # endif 7683 7684 #else 7685 7686 INFNAN_NV_U8_DECL PL_inf; 7687 INFNAN_NV_U8_DECL PL_nan; 7688 7689 #endif 7690 7691 END_EXTERN_C 7692 7693 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h), 7694 * we will define NV_INF/NV_NAN as the nv part of the global const 7695 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN 7696 * might not be a compile-time constant, in which case it cannot be 7697 * used to initialize PL_inf/PL_nan above. */ 7698 #ifndef NV_INF 7699 # define NV_INF PL_inf.nv 7700 #endif 7701 #ifndef NV_NAN 7702 # define NV_NAN PL_nan.nv 7703 #endif 7704 7705 /* NaNs (not-a-numbers) can carry payload bits, in addition to 7706 * "nan-ness". Part of the payload is the quiet/signaling bit. 7707 * To back up a bit (harhar): 7708 * 7709 * For IEEE 754 64-bit formats [1]: 7710 * 7711 * s 000 (mantissa all-zero) zero 7712 * s 000 (mantissa non-zero) subnormals (denormals) 7713 * s 001 ... 7fe normals 7714 * s 7ff q nan 7715 * 7716 * For IEEE 754 128-bit formats: 7717 * 7718 * s 0000 (mantissa all-zero) zero 7719 * s 0000 (mantissa non-zero) subnormals (denormals) 7720 * s 0001 ... 7ffe normals 7721 * s 7fff q nan 7722 * 7723 * [1] this looks like big-endian, but applies equally to little-endian. 7724 * 7725 * s = Sign bit. Yes, zeros and nans can have negative sign, 7726 * the interpretation is application-specific. 7727 * 7728 * q = Quietness bit, the interpretation is platform-specific. 7729 * Most platforms have the most significant bit being one 7730 * meaning quiet, but some (older mips, hppa) have the msb 7731 * being one meaning signaling. Note that the above means 7732 * that on most platforms there cannot be signaling nan with 7733 * zero payload because that is identical with infinity; 7734 * while conversely on older mips/hppa there cannot be a quiet nan 7735 * because that is identical with infinity. 7736 * 7737 * Moreover, whether there is any behavioral difference 7738 * between quiet and signaling NaNs, depends on the platform. 7739 * 7740 * x86 80-bit extended precision is different, the mantissa bits: 7741 * 7742 * 63 62 61 30387+ pre-387 visual c 7743 * -------- ---- -------- -------- 7744 * 0 0 0 invalid infinity 7745 * 0 0 1 invalid snan 7746 * 0 1 0 invalid snan 7747 * 0 1 1 invalid snan 7748 * 1 0 0 infinity snan 1.#INF 7749 * 1 0 1 snan 1.#SNAN 7750 * 1 1 0 qnan -1.#IND (x86 chooses this to negative) 7751 * 1 1 1 qnan 1.#QNAN 7752 * 7753 * This means that in this format there are 61 bits available 7754 * for the nan payload. 7755 * 7756 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87 7757 * simply cannot preserve the bit. You can either use the 80-bit 7758 * extended precision (long double, -Duselongdouble), or use x86-64. 7759 * 7760 * In all platforms, the payload bytes (and bits, some of them are 7761 * often in a partial byte) themselves can be either all zero (x86), 7762 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double 7763 * or in a double-double, the first half of the payload can follow the 7764 * native double, while in the second half the payload can be all 7765 * zeros. (Therefore the mask for payload bits is not necessarily 7766 * identical to bit complement of the NaN.) Another way of putting 7767 * this: the payload for the default NaN might not be zero. 7768 * 7769 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits 7770 * being 'packaged' in either 12 or 16 bytes) can be whatever random 7771 * garbage. 7772 * 7773 * Furthermore, the semantics of the sign bit on NaNs are platform-specific. 7774 * On normal floats, the sign bit being on means negative. But this may, 7775 * or may not, be reverted on NaNs: in other words, the default NaN might 7776 * have the sign bit on, and therefore look like negative if you look 7777 * at it at the bit level. 7778 * 7779 * NaN payloads are not propagated even on copies, or in arithmetics. 7780 * They *might* be, according to some rules, on your particular 7781 * cpu/os/compiler/libraries, but no guarantees. 7782 * 7783 * To summarize, on most platforms, and for 64-bit doubles 7784 * (using big-endian ordering here): 7785 * 7786 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet 7787 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet 7788 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling 7789 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling 7790 * 7791 * The C99 nan() is supposed to generate *quiet* NaNs. 7792 * 7793 * Note the asymmetry: 7794 * The 7FF0000000000000 is positive infinity, 7795 * the FFF0000000000000 is negative infinity. 7796 */ 7797 7798 /* NVMANTBITS is the number of _real_ mantissa bits in an NV. 7799 * For the standard IEEE 754 fp this number is usually one less that 7800 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't 7801 * real. For the 80-bit extended precision formats (x86*), the number 7802 * of mantissa bits... depends. For normal floats, it's 64. But for 7803 * the inf/nan, it's different (zero for inf, 61 for nan). 7804 * NVMANTBITS works for normal floats. */ 7805 7806 /* We do not want to include the quiet/signaling bit. */ 7807 #define NV_NAN_BITS (NVMANTBITS - 1) 7808 7809 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE 7810 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7811 # define NV_NAN_QS_BYTE_OFFSET 13 7812 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7813 # define NV_NAN_QS_BYTE_OFFSET 2 7814 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN 7815 # define NV_NAN_QS_BYTE_OFFSET 7 7816 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 7817 # define NV_NAN_QS_BYTE_OFFSET 2 7818 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 7819 # define NV_NAN_QS_BYTE_OFFSET 13 7820 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 7821 # define NV_NAN_QS_BYTE_OFFSET 1 7822 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE 7823 # define NV_NAN_QS_BYTE_OFFSET 9 7824 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7825 # define NV_NAN_QS_BYTE_OFFSET 6 7826 # else 7827 # error "Unexpected long double format" 7828 # endif 7829 #else 7830 # ifdef USE_QUADMATH 7831 # ifdef NV_LITTLE_ENDIAN 7832 # define NV_NAN_QS_BYTE_OFFSET 13 7833 # elif defined(NV_BIG_ENDIAN) 7834 # define NV_NAN_QS_BYTE_OFFSET 2 7835 # else 7836 # error "Unexpected quadmath format" 7837 # endif 7838 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN 7839 # define NV_NAN_QS_BYTE_OFFSET 2 7840 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN 7841 # define NV_NAN_QS_BYTE_OFFSET 1 7842 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN 7843 # define NV_NAN_QS_BYTE_OFFSET 6 7844 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN 7845 # define NV_NAN_QS_BYTE_OFFSET 1 7846 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7847 # define NV_NAN_QS_BYTE_OFFSET 13 7848 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7849 # define NV_NAN_QS_BYTE_OFFSET 2 7850 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE 7851 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */ 7852 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 7853 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */ 7854 # else 7855 /* For example the VAX formats should never 7856 * get here because they do not have NaN. */ 7857 # error "Unexpected double format" 7858 # endif 7859 #endif 7860 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */ 7861 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET]) 7862 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET 7863 * for the quiet/signaling */ 7864 #if defined(USE_LONG_DOUBLE) && \ 7865 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 7866 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN) 7867 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */ 7868 #elif defined(USE_LONG_DOUBLE) && \ 7869 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \ 7870 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \ 7871 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 7872 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE) 7873 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */ 7874 #else 7875 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */ 7876 #endif 7877 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT)) 7878 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV 7879 * (bytes ordered big-endianly) for the quiet/signaling bit 7880 * for the quiet/signaling */ 7881 #define NV_NAN_QS_BIT_OFFSET \ 7882 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT)) 7883 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being 7884 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined) 7885 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */ 7886 #define NV_NAN_QS_QUIET \ 7887 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT) 7888 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET)) 7889 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT) 7890 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN, 7891 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN. 7892 * Note however that these do not check whether the nvp is a NaN. */ 7893 #define NV_NAN_IS_QUIET(nvp) \ 7894 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0)) 7895 #define NV_NAN_IS_SIGNALING(nvp) \ 7896 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT)) 7897 #define NV_NAN_SET_QUIET(nvp) \ 7898 (NV_NAN_QS_QUIET ? \ 7899 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \ 7900 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT)) 7901 #define NV_NAN_SET_SIGNALING(nvp) \ 7902 (NV_NAN_QS_QUIET ? \ 7903 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \ 7904 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT)) 7905 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT) 7906 7907 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits. 7908 * 7909 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes. 7910 * 0xFF means "don't go here".*/ 7911 7912 /* Shorthands to avoid typoses. */ 7913 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \ 7914 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 7915 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \ 7916 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7917 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \ 7918 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7 7919 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \ 7920 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0 7921 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \ 7922 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7923 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00 7924 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \ 7925 NV_NAN_PAYLOAD_PERM_0_TO_7, \ 7926 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF 7927 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \ 7928 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7929 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7930 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \ 7931 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \ 7932 NV_NAN_PAYLOAD_PERM_7_TO_0 7933 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \ 7934 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00 7935 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \ 7936 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF 7937 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \ 7938 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7939 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \ 7940 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0 7941 7942 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE 7943 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7944 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 7945 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 7946 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7947 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 7948 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 7949 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN 7950 # if LONG_DOUBLESIZE == 10 7951 # define NV_NAN_PAYLOAD_MASK \ 7952 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7953 0x00, 0x00 7954 # define NV_NAN_PAYLOAD_PERM \ 7955 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF 7956 # elif LONG_DOUBLESIZE == 12 7957 # define NV_NAN_PAYLOAD_MASK \ 7958 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7959 0x00, 0x00, 0x00, 0x00 7960 # define NV_NAN_PAYLOAD_PERM \ 7961 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF 7962 # elif LONG_DOUBLESIZE == 16 7963 # define NV_NAN_PAYLOAD_MASK \ 7964 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7965 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 7966 # define NV_NAN_PAYLOAD_PERM \ 7967 NV_NAN_PAYLOAD_PERM_0_TO_7, \ 7968 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF 7969 # else 7970 # error "Unexpected x86 80-bit little-endian long double format" 7971 # endif 7972 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 7973 # if LONG_DOUBLESIZE == 10 7974 # define NV_NAN_PAYLOAD_MASK \ 7975 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7976 0xff, 0xff 7977 # define NV_NAN_PAYLOAD_PERM \ 7978 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF 7979 # elif LONG_DOUBLESIZE == 12 7980 # define NV_NAN_PAYLOAD_MASK \ 7981 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7982 0xff, 0xff, 0x00, 0x00 7983 # define NV_NAN_PAYLOAD_PERM \ 7984 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF 7985 # elif LONG_DOUBLESIZE == 16 7986 # define NV_NAN_PAYLOAD_MASK \ 7987 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7988 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 7989 # define NV_NAN_PAYLOAD_PERM \ 7990 NV_NAN_PAYLOAD_PERM_7_TO_0, \ 7991 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF 7992 # else 7993 # error "Unexpected x86 80-bit big-endian long double format" 7994 # endif 7995 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 7996 /* For double-double we assume only the first double (in LE or BE terms) 7997 * is used for NaN. */ 7998 # define NV_NAN_PAYLOAD_MASK \ 7999 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 8000 # define NV_NAN_PAYLOAD_PERM \ 8001 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 8002 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 8003 # define NV_NAN_PAYLOAD_MASK \ 8004 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 8005 # define NV_NAN_PAYLOAD_PERM \ 8006 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 8007 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE 8008 # define NV_NAN_PAYLOAD_MASK \ 8009 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 8010 # define NV_NAN_PAYLOAD_PERM \ 8011 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 8012 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 8013 # define NV_NAN_PAYLOAD_MASK \ 8014 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 8015 # define NV_NAN_PAYLOAD_PERM \ 8016 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 8017 # else 8018 # error "Unexpected long double format" 8019 # endif 8020 #else 8021 # ifdef USE_QUADMATH /* quadmath is not long double */ 8022 # ifdef NV_LITTLE_ENDIAN 8023 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 8024 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 8025 # elif defined(NV_BIG_ENDIAN) 8026 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 8027 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 8028 # else 8029 # error "Unexpected quadmath format" 8030 # endif 8031 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN 8032 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00 8033 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF 8034 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN 8035 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff 8036 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0 8037 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN 8038 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 8039 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 8040 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN 8041 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 8042 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 8043 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 8044 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 8045 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 8046 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 8047 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 8048 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 8049 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE 8050 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff 8051 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3 8052 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 8053 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff 8054 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4 8055 # else 8056 # error "Unexpected double format" 8057 # endif 8058 #endif 8059 8060 #endif /* DOUBLE_HAS_NAN */ 8061 8062 8063 /* 8064 8065 (KEEP THIS LAST IN perl.h!) 8066 8067 Mention 8068 8069 NV_PRESERVES_UV 8070 8071 HAS_MKSTEMP 8072 HAS_MKSTEMPS 8073 HAS_MKDTEMP 8074 8075 HAS_GETCWD 8076 8077 HAS_MMAP 8078 HAS_MPROTECT 8079 HAS_MSYNC 8080 HAS_MADVISE 8081 HAS_MUNMAP 8082 I_SYSMMAN 8083 Mmap_t 8084 8085 NVef 8086 NVff 8087 NVgf 8088 8089 HAS_UALARM 8090 HAS_USLEEP 8091 8092 HAS_SETITIMER 8093 HAS_GETITIMER 8094 8095 HAS_SENDMSG 8096 HAS_RECVMSG 8097 HAS_READV 8098 HAS_WRITEV 8099 I_SYSUIO 8100 HAS_STRUCT_MSGHDR 8101 HAS_STRUCT_CMSGHDR 8102 8103 HAS_NL_LANGINFO 8104 8105 HAS_DIRFD 8106 8107 so that Configure picks them up. 8108 8109 (KEEP THIS LAST IN perl.h!) 8110 8111 */ 8112 8113 #endif /* Include guard */ 8114 8115 /* 8116 * ex: set ts=8 sts=4 sw=4 et: 8117 */ 8118