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 /* Microsoft Visual C++ 6.0 needs special treatment in numerous places */ 120 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1300 121 # define USING_MSVC6 122 #endif 123 124 #undef START_EXTERN_C 125 #undef END_EXTERN_C 126 #undef EXTERN_C 127 #ifdef __cplusplus 128 # define START_EXTERN_C extern "C" { 129 # define END_EXTERN_C } 130 # define EXTERN_C extern "C" 131 #else 132 # define START_EXTERN_C 133 # define END_EXTERN_C 134 # define EXTERN_C extern 135 #endif 136 137 /* Fallback definitions in case we don't have definitions from config.h. 138 This should only matter for systems that don't use Configure and 139 haven't been modified to define PERL_STATIC_INLINE yet. 140 */ 141 #if !defined(PERL_STATIC_INLINE) 142 # ifdef HAS_STATIC_INLINE 143 # define PERL_STATIC_INLINE static inline 144 # else 145 # define PERL_STATIC_INLINE static 146 # endif 147 #endif 148 149 #if defined(PERL_GLOBAL_STRUCT) && !defined(PERL_GET_VARS) 150 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 151 EXTERN_C struct perl_vars* Perl_GetVarsPrivate(); 152 # define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */ 153 # else 154 # define PERL_GET_VARS() PL_VarsPtr 155 # endif 156 #endif 157 158 /* this used to be off by default, now its on, see perlio.h */ 159 #define PERLIO_FUNCS_CONST 160 161 #define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL 162 163 #ifdef PERL_GLOBAL_STRUCT 164 # define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS() 165 #else 166 # define dVAR dNOOP 167 #endif 168 169 #ifdef PERL_IMPLICIT_CONTEXT 170 # ifndef MULTIPLICITY 171 # define MULTIPLICITY 172 # endif 173 # define tTHX PerlInterpreter* 174 # define pTHX tTHX my_perl PERL_UNUSED_DECL 175 # define aTHX my_perl 176 # define aTHXa(a) aTHX = (tTHX)a 177 # ifdef PERL_GLOBAL_STRUCT 178 # define dTHXa(a) dVAR; pTHX = (tTHX)a 179 # else 180 # define dTHXa(a) pTHX = (tTHX)a 181 # endif 182 # ifdef PERL_GLOBAL_STRUCT 183 # define dTHX dVAR; pTHX = PERL_GET_THX 184 # else 185 # define dTHX pTHX = PERL_GET_THX 186 # endif 187 # define pTHX_ pTHX, 188 # define aTHX_ aTHX, 189 # define pTHX_1 2 190 # define pTHX_2 3 191 # define pTHX_3 4 192 # define pTHX_4 5 193 # define pTHX_5 6 194 # define pTHX_6 7 195 # define pTHX_7 8 196 # define pTHX_8 9 197 # define pTHX_9 10 198 # define pTHX_12 13 199 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL) 200 # define PERL_TRACK_MEMPOOL 201 # endif 202 #else 203 # undef PERL_TRACK_MEMPOOL 204 #endif 205 206 #ifdef DEBUGGING 207 # define dTHX_DEBUGGING dTHX 208 #else 209 # define dTHX_DEBUGGING dNOOP 210 #endif 211 212 #define STATIC static 213 214 #ifndef PERL_CORE 215 /* Do not use these macros. They were part of PERL_OBJECT, which was an 216 * implementation of multiplicity using C++ objects. They have been left 217 * here solely for the sake of XS code which has incorrectly 218 * cargo-culted them. 219 */ 220 #define CPERLscope(x) x 221 #define CPERLarg void 222 #define CPERLarg_ 223 #define _CPERLarg 224 #define PERL_OBJECT_THIS 225 #define _PERL_OBJECT_THIS 226 #define PERL_OBJECT_THIS_ 227 #define CALL_FPTR(fptr) (*fptr) 228 #define MEMBER_TO_FPTR(name) name 229 #endif /* !PERL_CORE */ 230 231 #define CALLRUNOPS PL_runops 232 233 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags)) 234 235 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags) 236 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \ 237 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \ 238 (strbeg),(minend),(sv),(data),(flags)) 239 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \ 240 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \ 241 (strend),(flags),(data)) 242 #define CALLREG_INTUIT_STRING(prog) \ 243 RX_ENGINE(prog)->checkstr(aTHX_ (prog)) 244 245 #define CALLREGFREE(prog) \ 246 Perl_pregfree(aTHX_ (prog)) 247 248 #define CALLREGFREE_PVT(prog) \ 249 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog)) 250 251 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \ 252 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv)) 253 254 #define CALLREG_NUMBUF_STORE(rx,paren,value) \ 255 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value)) 256 257 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \ 258 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren)) 259 260 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \ 261 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH)) 262 263 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \ 264 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE)) 265 266 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \ 267 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE)) 268 269 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \ 270 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR)) 271 272 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \ 273 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS)) 274 275 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \ 276 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY)) 277 278 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \ 279 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY)) 280 281 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \ 282 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR)) 283 284 #define CALLREG_NAMED_BUFF_COUNT(rx) \ 285 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT) 286 287 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \ 288 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags) 289 290 #define CALLREG_PACKAGE(rx) \ 291 RX_ENGINE(rx)->qr_package(aTHX_ (rx)) 292 293 #if defined(USE_ITHREADS) 294 #define CALLREGDUPE(prog,param) \ 295 Perl_re_dup(aTHX_ (prog),(param)) 296 297 #define CALLREGDUPE_PVT(prog,param) \ 298 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \ 299 : (REGEXP *)NULL) 300 #endif 301 302 303 304 305 306 /* 307 * Because of backward compatibility reasons the PERL_UNUSED_DECL 308 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh. 309 * 310 * Note that there are C compilers such as MetroWerks CodeWarrior 311 * which do not have an "inlined" way (like the gcc __attribute__) of 312 * marking unused variables (they need e.g. a #pragma) and therefore 313 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even 314 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above). 315 * 316 */ 317 318 #if defined(__SYMBIAN32__) && defined(__GNUC__) 319 # ifdef __cplusplus 320 # define PERL_UNUSED_DECL 321 # else 322 # define PERL_UNUSED_DECL __attribute__((unused)) 323 # endif 324 #endif 325 326 #ifndef PERL_UNUSED_DECL 327 # if defined(HASATTRIBUTE_UNUSED) && (!defined(__cplusplus) || __GNUC__ >= 4) 328 # define PERL_UNUSED_DECL __attribute__unused__ 329 # else 330 # define PERL_UNUSED_DECL 331 # endif 332 #endif 333 334 /* gcc -Wall: 335 * for silencing unused variables that are actually used most of the time, 336 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs, 337 * or variables/arguments that are used only in certain configurations. 338 */ 339 #ifndef PERL_UNUSED_ARG 340 # define PERL_UNUSED_ARG(x) ((void)sizeof(x)) 341 #endif 342 #ifndef PERL_UNUSED_VAR 343 # define PERL_UNUSED_VAR(x) ((void)sizeof(x)) 344 #endif 345 346 #if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT) 347 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl) 348 #else 349 # define PERL_UNUSED_CONTEXT 350 #endif 351 352 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions, 353 * g++ allows them but seems to have problems with them 354 * (insane errors ensue). 355 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2). 356 */ 357 #if defined(PERL_GCC_PEDANTIC) || \ 358 (defined(__GNUC__) && defined(__cplusplus) && \ 359 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2)))) 360 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN 361 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN 362 # endif 363 #endif 364 365 /* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results 366 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)). 367 * 368 * The main reason for this is that the combination of gcc -Wunused-result 369 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot 370 * be silenced with casting to void. This causes trouble when the system 371 * header files use the attribute. 372 * 373 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning 374 * is there for a good reason: you might lose success/failure information, 375 * or leak resources, or changes in resources. 376 * 377 * But sometimes you just want to ignore the return value, e.g. on 378 * codepaths soon ending up in abort, or in "best effort" attempts, 379 * or in situations where there is no good way to handle failures. 380 * 381 * Sometimes PERL_UNUSED_RESULT might not be the most natural way: 382 * another possibility is that you can capture the return value 383 * and use PERL_UNUSED_VAR on that. 384 * 385 * The __typeof__() is used instead of typeof() since typeof() is not 386 * available under strict C89, and because of compilers masquerading 387 * as gcc (clang and icc), we want exactly the gcc extension 388 * __typeof__ and nothing else. 389 */ 390 #ifndef PERL_UNUSED_RESULT 391 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT) 392 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END 393 # else 394 # define PERL_UNUSED_RESULT(v) ((void)(v)) 395 # endif 396 #endif 397 398 /* on gcc (and clang), specify that a warning should be temporarily 399 * ignored; e.g. 400 * 401 * GCC_DIAG_IGNORE_DECL(-Wmultichar); 402 * char b = 'ab'; 403 * GCC_DIAG_RESTORE_DECL; 404 * 405 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html 406 * 407 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011; 408 * clang only pretends to be GCC 4.2, but still supports push/pop. 409 * 410 * Note on usage: all macros must be used at a place where a declaration 411 * or statement can occur, i.e., not in the middle of an expression. 412 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but 413 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and 414 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave 415 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT() 416 * and *_DIAG_RESTORE_STMT must be used with a following semicolon, 417 * and behave syntactically as statements (like NOOP). 418 * 419 */ 420 421 #if defined(__clang__) || defined(__clang) || \ 422 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406) 423 # define GCC_DIAG_PRAGMA(x) _Pragma (#x) 424 /* clang has "clang diagnostic" pragmas, but also understands gcc. */ 425 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \ 426 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x) 427 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop") 428 #else 429 # define GCC_DIAG_IGNORE(w) 430 # define GCC_DIAG_RESTORE 431 #endif 432 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP 433 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP 434 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP 435 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP 436 /* for clang specific pragmas */ 437 #if defined(__clang__) || defined(__clang) 438 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x) 439 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \ 440 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x) 441 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop") 442 #else 443 # define CLANG_DIAG_IGNORE(w) 444 # define CLANG_DIAG_RESTORE 445 #endif 446 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP 447 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP 448 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP 449 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP 450 451 #if defined(_MSC_VER) && (_MSC_VER >= 1300) 452 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \ 453 __pragma(warning(disable : x)) 454 # define MSVC_DIAG_RESTORE __pragma(warning(pop)) 455 #else 456 # define MSVC_DIAG_IGNORE(x) 457 # define MSVC_DIAG_RESTORE 458 #endif 459 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP 460 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP 461 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP 462 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP 463 464 #define NOOP /*EMPTY*/(void)0 465 #define dNOOP struct Perl___notused_struct 466 467 #ifndef pTHX 468 /* Don't bother defining tTHX ; using it outside 469 * code guarded by PERL_IMPLICIT_CONTEXT is an error. 470 */ 471 # define pTHX void 472 # define pTHX_ 473 # define aTHX 474 # define aTHX_ 475 # define aTHXa(a) NOOP 476 # define dTHXa(a) dNOOP 477 # define dTHX dNOOP 478 # define pTHX_1 1 479 # define pTHX_2 2 480 # define pTHX_3 3 481 # define pTHX_4 4 482 # define pTHX_5 5 483 # define pTHX_6 6 484 # define pTHX_7 7 485 # define pTHX_8 8 486 # define pTHX_9 9 487 # define pTHX_12 12 488 #endif 489 490 #ifndef dVAR 491 # define dVAR dNOOP 492 #endif 493 494 /* these are only defined for compatibility; should not be used internally */ 495 #if !defined(pTHXo) && !defined(PERL_CORE) 496 # define pTHXo pTHX 497 # define pTHXo_ pTHX_ 498 # define aTHXo aTHX 499 # define aTHXo_ aTHX_ 500 # define dTHXo dTHX 501 # define dTHXoa(x) dTHXa(x) 502 #endif 503 504 #ifndef pTHXx 505 # define pTHXx PerlInterpreter *my_perl 506 # define pTHXx_ pTHXx, 507 # define aTHXx my_perl 508 # define aTHXx_ aTHXx, 509 # define dTHXx dTHX 510 #endif 511 512 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation) 513 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...). 514 * dTHXs is therefore needed for all functions using PerlIO_foo(). */ 515 #ifdef PERL_IMPLICIT_SYS 516 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 517 # define dTHXs dVAR; dTHX 518 # else 519 # define dTHXs dTHX 520 # endif 521 #else 522 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 523 # define dTHXs dVAR 524 # else 525 # define dTHXs dNOOP 526 # endif 527 #endif 528 529 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus) 530 # ifndef PERL_USE_GCC_BRACE_GROUPS 531 # define PERL_USE_GCC_BRACE_GROUPS 532 # endif 533 #endif 534 535 /* 536 * STMT_START { statements; } STMT_END; 537 * can be used as a single statement, as in 538 * if (x) STMT_START { ... } STMT_END; else ... 539 * 540 * Trying to select a version that gives no warnings... 541 */ 542 #if !(defined(STMT_START) && defined(STMT_END)) 543 # ifdef PERL_USE_GCC_BRACE_GROUPS 544 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */ 545 # define STMT_END ) 546 # else 547 # define STMT_START do 548 # define STMT_END while (0) 549 # endif 550 #endif 551 552 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */ 553 # define BYTEORDER 0x1234 554 #endif 555 556 /* Overall memory policy? */ 557 #ifndef CONSERVATIVE 558 # define LIBERAL 1 559 #endif 560 561 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90 562 #define ASCIIish 563 #else 564 #undef ASCIIish 565 #endif 566 567 /* 568 * The following contortions are brought to you on behalf of all the 569 * standards, semi-standards, de facto standards, not-so-de-facto standards 570 * of the world, as well as all the other botches anyone ever thought of. 571 * The basic theory is that if we work hard enough here, the rest of the 572 * code can be a lot prettier. Well, so much for theory. Sorry, Henry... 573 */ 574 575 /* define this once if either system, instead of cluttering up the src */ 576 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE) 577 #define DOSISH 1 578 #endif 579 580 /* These exist only for back-compat with XS modules. */ 581 #ifndef PERL_CORE 582 #define VOL volatile 583 #define CAN_PROTOTYPE 584 #define _(args) args 585 #define I_LIMITS 586 #define I_STDARG 587 #define STANDARD_C 588 #endif 589 590 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT, 591 * you get a perl without taint support, but doubtlessly with a lesser 592 * degree of support. Do not do so unless you know exactly what it means 593 * technically, have a good reason to do so, and know exactly how the 594 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered 595 * a potential security risk due to flat out ignoring the security-relevant 596 * taint flags. This being said, a perl without taint support compiled in 597 * has marginal run-time performance benefits. 598 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT. 599 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it 600 * silently ignores -t/-T instead of throwing an exception. 601 * 602 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT 603 * voids your nonexistent warranty! 604 */ 605 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT) 606 # define NO_TAINT_SUPPORT 1 607 #endif 608 609 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related 610 * operations into no-ops for a very modest speed-up. Enable only if you 611 * know what you're doing: tests and CPAN modules' tests are bound to fail. 612 */ 613 #ifdef NO_TAINT_SUPPORT 614 # define TAINT NOOP 615 # define TAINT_NOT NOOP 616 # define TAINT_IF(c) NOOP 617 # define TAINT_ENV() NOOP 618 # define TAINT_PROPER(s) NOOP 619 # define TAINT_set(s) NOOP 620 # define TAINT_get 0 621 # define TAINTING_get 0 622 # define TAINTING_set(s) NOOP 623 # define TAINT_WARN_get 0 624 # define TAINT_WARN_set(s) NOOP 625 #else 626 # define TAINT (PL_tainted = PL_tainting) 627 # define TAINT_NOT (PL_tainted = FALSE) 628 # define TAINT_IF(c) if (UNLIKELY(c)) { PL_tainted = PL_tainting; } 629 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); } 630 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { taint_proper(NULL, s); } 631 # define TAINT_set(s) (PL_tainted = (s)) 632 # define TAINT_get (PL_tainted) 633 # define TAINTING_get (PL_tainting) 634 # define TAINTING_set(s) (PL_tainting = (s)) 635 # define TAINT_WARN_get (PL_taint_warn) 636 # define TAINT_WARN_set(s) (PL_taint_warn = (s)) 637 #endif 638 639 /* flags used internally only within pp_subst and pp_substcont */ 640 #ifdef PERL_CORE 641 # define SUBST_TAINT_STR 1 /* string tainted */ 642 # define SUBST_TAINT_PAT 2 /* pattern tainted */ 643 # define SUBST_TAINT_REPL 4 /* replacement tainted */ 644 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */ 645 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */ 646 #endif 647 648 /* XXX All process group stuff is handled in pp_sys.c. Should these 649 defines move there? If so, I could simplify this a lot. --AD 9/96. 650 */ 651 /* Process group stuff changed from traditional BSD to POSIX. 652 perlfunc.pod documents the traditional BSD-style syntax, so we'll 653 try to preserve that, if possible. 654 */ 655 #ifdef HAS_SETPGID 656 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp)) 657 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP) 658 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp)) 659 #elif defined(HAS_SETPGRP2) 660 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp)) 661 #endif 662 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP) 663 # define HAS_SETPGRP /* Well, effectively it does . . . */ 664 #endif 665 666 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes 667 our life easier :-) so we'll try it. 668 */ 669 #ifdef HAS_GETPGID 670 # define BSD_GETPGRP(pid) getpgid((pid)) 671 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP) 672 # define BSD_GETPGRP(pid) getpgrp((pid)) 673 #elif defined(HAS_GETPGRP2) 674 # define BSD_GETPGRP(pid) getpgrp2((pid)) 675 #endif 676 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP) 677 # define HAS_GETPGRP /* Well, effectively it does . . . */ 678 #endif 679 680 /* These are not exact synonyms, since setpgrp() and getpgrp() may 681 have different behaviors, but perl.h used to define USE_BSDPGRP 682 (prior to 5.003_05) so some extension might depend on it. 683 */ 684 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP) 685 # ifndef USE_BSDPGRP 686 # define USE_BSDPGRP 687 # endif 688 #endif 689 690 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that 691 pthread.h must be included before all other header files. 692 */ 693 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD) 694 # include <pthread.h> 695 #endif 696 697 #include <sys/types.h> 698 699 /* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h 700 which is included from stdarg.h. Bad definition not present in SD 2008 701 SDK headers. wince.h is not yet included, so we cant fix this from there 702 since by then MB_CUR_MAX will be defined from stdlib.h. 703 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here 704 since cewchar.h can't be included this early */ 705 #if defined(UNDER_CE) && (_MSC_VER < 1300) 706 # define MB_CUR_MAX 1uL 707 #endif 708 709 # include <stdarg.h> 710 711 #ifdef I_STDINT 712 # include <stdint.h> 713 #endif 714 715 #include <ctype.h> 716 #include <float.h> 717 #include <limits.h> 718 719 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */ 720 #undef METHOD 721 #endif 722 723 #ifdef PERL_MICRO 724 # define NO_LOCALE 725 #endif 726 727 #ifdef I_LOCALE 728 # include <locale.h> 729 #endif 730 731 #ifdef I_XLOCALE 732 # include <xlocale.h> 733 #endif 734 735 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008 736 * functions are available, or 2) just the setlocale() function. This logic is 737 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in 738 * sync. */ 739 #if ! defined(NO_LOCALE) 740 741 # if ! defined(NO_POSIX_2008_LOCALE) \ 742 && defined(HAS_NEWLOCALE) \ 743 && defined(HAS_USELOCALE) \ 744 && defined(HAS_DUPLOCALE) \ 745 && defined(HAS_FREELOCALE) \ 746 && defined(LC_ALL_MASK) 747 748 /* For simplicity, the code is written to assume that any platform advanced 749 * enough to have the Posix 2008 locale functions has LC_ALL. The final 750 * test above makes sure that assumption is valid */ 751 752 # define HAS_POSIX_2008_LOCALE 753 # define USE_LOCALE 754 # elif defined(HAS_SETLOCALE) 755 # define USE_LOCALE 756 # endif 757 #endif 758 759 #ifdef USE_LOCALE 760 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this 761 #define */ 762 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \ 763 && defined(HAS_STRXFRM) 764 # define USE_LOCALE_COLLATE 765 # endif 766 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE) 767 # define USE_LOCALE_CTYPE 768 # endif 769 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC) 770 # define USE_LOCALE_NUMERIC 771 # endif 772 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES) 773 # define USE_LOCALE_MESSAGES 774 # endif 775 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY) 776 # define USE_LOCALE_MONETARY 777 # endif 778 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME) 779 # define USE_LOCALE_TIME 780 # endif 781 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS) 782 # define USE_LOCALE_ADDRESS 783 # endif 784 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION) 785 # define USE_LOCALE_IDENTIFICATION 786 # endif 787 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT) 788 # define USE_LOCALE_MEASUREMENT 789 # endif 790 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER) 791 # define USE_LOCALE_PAPER 792 # endif 793 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE) 794 # define USE_LOCALE_TELEPHONE 795 # endif 796 797 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and 798 * changes here MUST also be made there */ 799 800 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE) 801 # define USE_POSIX_2008_LOCALE 802 # ifndef USE_THREAD_SAFE_LOCALE 803 # define USE_THREAD_SAFE_LOCALE 804 # endif 805 /* If compiled with 806 * -DUSE_THREAD_SAFE_LOCALE, will do so even 807 * on unthreaded builds */ 808 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \ 809 && ( defined(HAS_POSIX_2008_LOCALE) \ 810 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \ 811 && ! defined(NO_THREAD_SAFE_LOCALE) 812 # ifndef USE_THREAD_SAFE_LOCALE 813 # define USE_THREAD_SAFE_LOCALE 814 # endif 815 # ifdef HAS_POSIX_2008_LOCALE 816 # define USE_POSIX_2008_LOCALE 817 # endif 818 # endif 819 #endif 820 821 /* Microsoft documentation reads in the change log for VS 2015: 822 * "The localeconv function declared in locale.h now works correctly when 823 * per-thread locale is enabled. In previous versions of the library, this 824 * function would return the lconv data for the global locale, not the 825 * thread's locale." 826 */ 827 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900 828 # define TS_W32_BROKEN_LOCALECONV 829 #endif 830 831 #include <setjmp.h> 832 833 #ifdef I_SYS_PARAM 834 # ifdef PARAM_NEEDS_TYPES 835 # include <sys/types.h> 836 # endif 837 # include <sys/param.h> 838 #endif 839 840 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month 841 value something like 199306. This may be useful if no more-specific 842 feature test is available. 843 */ 844 #if defined(BSD) 845 # ifndef BSDish 846 # define BSDish 847 # endif 848 #endif 849 850 /* Use all the "standard" definitions */ 851 #include <stdlib.h> 852 853 /* If this causes problems, set i_unistd=undef in the hint file. */ 854 #ifdef I_UNISTD 855 # if defined(__amigaos4__) 856 # ifdef I_NETINET_IN 857 # include <netinet/in.h> 858 # endif 859 # endif 860 # include <unistd.h> 861 # if defined(__amigaos4__) 862 /* Under AmigaOS 4 newlib.library provides an environ. However using 863 * it doesn't give us enough control over inheritance of variables by 864 * subshells etc. so replace with custom version based on abc-shell 865 * code. */ 866 extern char **myenviron; 867 # undef environ 868 # define environ myenviron 869 # endif 870 #endif 871 872 /* for WCOREDUMP */ 873 #ifdef I_SYS_WAIT 874 # include <sys/wait.h> 875 #endif 876 877 #ifdef __SYMBIAN32__ 878 # undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */ 879 #endif 880 881 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO) 882 EXTERN_C int syscall(int, ...); 883 #endif 884 885 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO) 886 EXTERN_C int usleep(unsigned int); 887 #endif 888 889 /* macros for correct constant construction. These are in C99 <stdint.h> 890 * (so they will not be available in strict C89 mode), but they are nice, so 891 * let's define them if necessary. */ 892 #ifndef UINT16_C 893 # if INTSIZE >= 2 894 # define UINT16_C(x) ((U16_TYPE)x##U) 895 # else 896 # define UINT16_C(x) ((U16_TYPE)x##UL) 897 # endif 898 #endif 899 900 #ifndef UINT32_C 901 # if INTSIZE >= 4 902 # define UINT32_C(x) ((U32_TYPE)x##U) 903 # else 904 # define UINT32_C(x) ((U32_TYPE)x##UL) 905 # endif 906 #endif 907 908 #ifdef I_STDINT 909 typedef intmax_t PERL_INTMAX_T; 910 typedef uintmax_t PERL_UINTMAX_T; 911 #endif 912 913 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't 914 * actually mean what it has always been documented to mean (see RT #119753) 915 * and is explicitly turned off outside of core with dire warnings about 916 * removing the undef. */ 917 918 #if defined(QUADKIND) 919 # undef PeRl_INT64_C 920 # undef PeRl_UINT64_C 921 /* Prefer the native integer types (int and long) over long long 922 * (which is not C89) and Win32-specific __int64. */ 923 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8 924 # define PeRl_INT64_C(c) (c) 925 # define PeRl_UINT64_C(c) CAT2(c,U) 926 # endif 927 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8 928 # define PeRl_INT64_C(c) CAT2(c,L) 929 # define PeRl_UINT64_C(c) CAT2(c,UL) 930 # endif 931 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG) 932 # define PeRl_INT64_C(c) CAT2(c,LL) 933 # define PeRl_UINT64_C(c) CAT2(c,ULL) 934 # endif 935 # if QUADKIND == QUAD_IS___INT64 936 # define PeRl_INT64_C(c) CAT2(c,I64) 937 # define PeRl_UINT64_C(c) CAT2(c,UI64) 938 # endif 939 # ifndef PeRl_INT64_C 940 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */ 941 # define PeRl_UINT64_C(c) ((U64TYPE)(c)) 942 # endif 943 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will 944 * not fly with C89-pedantic gcc, so let's undefine them first so that 945 * we can redefine them with our native integer preferring versions. */ 946 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC) 947 # undef INT64_C 948 # undef UINT64_C 949 # endif 950 # ifndef INT64_C 951 # define INT64_C(c) PeRl_INT64_C(c) 952 # endif 953 # ifndef UINT64_C 954 # define UINT64_C(c) PeRl_UINT64_C(c) 955 # endif 956 957 # ifndef I_STDINT 958 typedef I64TYPE PERL_INTMAX_T; 959 typedef U64TYPE PERL_UINTMAX_T; 960 # endif 961 # ifndef INTMAX_C 962 # define INTMAX_C(c) INT64_C(c) 963 # endif 964 # ifndef UINTMAX_C 965 # define UINTMAX_C(c) UINT64_C(c) 966 # endif 967 968 #else /* below QUADKIND is undefined */ 969 970 /* Perl doesn't work on 16 bit systems, so must be 32 bit */ 971 # ifndef I_STDINT 972 typedef I32TYPE PERL_INTMAX_T; 973 typedef U32TYPE PERL_UINTMAX_T; 974 # endif 975 # ifndef INTMAX_C 976 # define INTMAX_C(c) INT32_C(c) 977 # endif 978 # ifndef UINTMAX_C 979 # define UINTMAX_C(c) UINT32_C(c) 980 # endif 981 982 #endif /* no QUADKIND */ 983 984 #ifdef PERL_CORE 985 986 /* byte-swapping functions for big-/little-endian conversion */ 987 # define _swab_16_(x) ((U16)( \ 988 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \ 989 (((U16)(x) & UINT16_C(0xff00)) >> 8) )) 990 991 # define _swab_32_(x) ((U32)( \ 992 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \ 993 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \ 994 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \ 995 (((U32)(x) & UINT32_C(0xff000000)) >> 24) )) 996 997 # ifdef HAS_QUAD 998 # define _swab_64_(x) ((U64)( \ 999 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \ 1000 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \ 1001 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \ 1002 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \ 1003 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \ 1004 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \ 1005 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \ 1006 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) )) 1007 # endif 1008 1009 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster, 1010 at least on FreeBSD. YMMV, so experiment. */ 1011 #ifndef PERL_ARENA_SIZE 1012 #define PERL_ARENA_SIZE 4080 1013 #endif 1014 1015 /* Maximum level of recursion */ 1016 #ifndef PERL_SUB_DEPTH_WARN 1017 #define PERL_SUB_DEPTH_WARN 100 1018 #endif 1019 1020 #endif /* PERL_CORE */ 1021 1022 /* Maximum number of args that may be passed to an OP_MULTICONCAT op. 1023 * It determines the size of local arrays in S_maybe_multiconcat() and 1024 * pp_multiconcat(). 1025 */ 1026 #define PERL_MULTICONCAT_MAXARG 64 1027 1028 /* The indexes of fields of a multiconcat aux struct. 1029 * The fixed fields are followed by nargs+1 const segment lengths, 1030 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8. 1031 */ 1032 1033 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */ 1034 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */ 1035 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */ 1036 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */ 1037 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */ 1038 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */ 1039 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a 1040 multiconcat header */ 1041 1042 /* We no longer default to creating a new SV for GvSV. 1043 Do this before embed. */ 1044 #ifndef PERL_CREATE_GVSV 1045 # ifndef PERL_DONT_CREATE_GVSV 1046 # define PERL_DONT_CREATE_GVSV 1047 # endif 1048 #endif 1049 1050 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) 1051 #define PERL_USES_PL_PIDSTATUS 1052 #endif 1053 1054 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__) 1055 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION 1056 #endif 1057 1058 #define MEM_SIZE Size_t 1059 1060 /* Round all values passed to malloc up, by default to a multiple of 1061 sizeof(size_t) 1062 */ 1063 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM 1064 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size 1065 #endif 1066 1067 /* sv_grow() will expand strings by at least a certain percentage of 1068 the previously *used* length to avoid excessive calls to realloc(). 1069 The default is 25% of the current length. 1070 */ 1071 #ifndef PERL_STRLEN_EXPAND_SHIFT 1072 # define PERL_STRLEN_EXPAND_SHIFT 2 1073 #endif 1074 1075 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably 1076 * onwards) when building Socket.xs, but we can just use a different definition 1077 * for STRUCT_OFFSET instead. */ 1078 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910 1079 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m)) 1080 #else 1081 # include <stddef.h> 1082 # define STRUCT_OFFSET(s,m) offsetof(s,m) 1083 #endif 1084 1085 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is 1086 * in C89, but apparently there are platforms where it doesn't exist. See 1087 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.) 1088 * */ 1089 #ifdef PERL_GCC_PEDANTIC 1090 # undef HAS_PTRDIFF_T 1091 #endif 1092 1093 #ifdef HAS_PTRDIFF_T 1094 # define Ptrdiff_t ptrdiff_t 1095 #else 1096 # define Ptrdiff_t SSize_t 1097 #endif 1098 1099 #ifndef __SYMBIAN32__ 1100 # include <string.h> 1101 #endif 1102 1103 /* This comes after <stdlib.h> so we don't try to change the standard 1104 * library prototypes; we'll use our own in proto.h instead. */ 1105 1106 #ifdef MYMALLOC 1107 # ifdef PERL_POLLUTE_MALLOC 1108 # ifndef PERL_EXTMALLOC_DEF 1109 # define Perl_malloc malloc 1110 # define Perl_calloc calloc 1111 # define Perl_realloc realloc 1112 # define Perl_mfree free 1113 # endif 1114 # else 1115 # define EMBEDMYMALLOC /* for compatibility */ 1116 # endif 1117 1118 # define safemalloc Perl_malloc 1119 # define safecalloc Perl_calloc 1120 # define saferealloc Perl_realloc 1121 # define safefree Perl_mfree 1122 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \ 1123 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \ 1124 code; \ 1125 } STMT_END 1126 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \ 1127 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch)) 1128 # define panic_write2(s) write(2, s, strlen(s)) 1129 # define CHECK_MALLOC_TAINT(newval) \ 1130 CHECK_MALLOC_TOO_LATE_FOR_( \ 1131 if (newval) { \ 1132 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\ 1133 exit(1); }) 1134 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \ 1135 if (doing_taint(argc,argv,env)) { \ 1136 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \ 1137 }} STMT_END; 1138 #else /* MYMALLOC */ 1139 # define safemalloc safesysmalloc 1140 # define safecalloc safesyscalloc 1141 # define saferealloc safesysrealloc 1142 # define safefree safesysfree 1143 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0) 1144 # define CHECK_MALLOC_TAINT(newval) ((void)0) 1145 # define MALLOC_CHECK_TAINT(argc,argv,env) 1146 #endif /* MYMALLOC */ 1147 1148 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */ 1149 #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) 1150 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "") 1151 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}") 1152 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL) 1153 1154 #ifndef memzero 1155 # define memzero(d,l) memset(d,0,l) 1156 #endif 1157 1158 #ifdef I_NETINET_IN 1159 # include <netinet/in.h> 1160 #endif 1161 1162 #ifdef I_ARPA_INET 1163 # include <arpa/inet.h> 1164 #endif 1165 1166 #ifdef I_SYS_STAT 1167 # include <sys/stat.h> 1168 #endif 1169 1170 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO. 1171 This definition should ideally go into win32/win32.h, but S_IFIFO is 1172 used later here in perl.h before win32/win32.h is being included. */ 1173 #if !defined(S_IFIFO) && defined(_S_IFIFO) 1174 # define S_IFIFO _S_IFIFO 1175 #endif 1176 1177 /* The stat macros for Unisoft System V/88 (and derivatives 1178 like UTekV) are broken, sometimes giving false positives. Undefine 1179 them here and let the code below set them to proper values. 1180 1181 The ghs macro stands for GreenHills Software C-1.8.5 which 1182 is the C compiler for sysV88 and the various derivatives. 1183 This header file bug is corrected in gcc-2.5.8 and later versions. 1184 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */ 1185 1186 #if defined(m88k) && defined(ghs) 1187 # undef S_ISDIR 1188 # undef S_ISCHR 1189 # undef S_ISBLK 1190 # undef S_ISREG 1191 # undef S_ISFIFO 1192 # undef S_ISLNK 1193 #endif 1194 1195 #include <time.h> 1196 1197 #ifdef I_SYS_TIME 1198 # ifdef I_SYS_TIME_KERNEL 1199 # define KERNEL 1200 # endif 1201 # include <sys/time.h> 1202 # ifdef I_SYS_TIME_KERNEL 1203 # undef KERNEL 1204 # endif 1205 #endif 1206 1207 #if defined(HAS_TIMES) && defined(I_SYS_TIMES) 1208 # include <sys/times.h> 1209 #endif 1210 1211 #include <errno.h> 1212 1213 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS) 1214 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */ 1215 #endif 1216 1217 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */ 1218 # include <sys/socket.h> 1219 # if defined(USE_SOCKS) && defined(I_SOCKS) 1220 # if !defined(INCLUDE_PROTOTYPES) 1221 # define INCLUDE_PROTOTYPES /* for <socks.h> */ 1222 # define PERL_SOCKS_NEED_PROTOTYPES 1223 # endif 1224 # include <socks.h> 1225 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */ 1226 # undef INCLUDE_PROTOTYPES 1227 # undef PERL_SOCKS_NEED_PROTOTYPES 1228 # endif 1229 # endif 1230 # ifdef I_NETDB 1231 # ifdef NETWARE 1232 # include<stdio.h> 1233 # endif 1234 # include <netdb.h> 1235 # endif 1236 # ifndef ENOTSOCK 1237 # ifdef I_NET_ERRNO 1238 # include <net/errno.h> 1239 # endif 1240 # endif 1241 #endif 1242 1243 /* sockatmark() is so new (2001) that many places might have it hidden 1244 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required 1245 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */ 1246 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO) 1247 # if defined(__THROW) && defined(__GLIBC__) 1248 int sockatmark(int) __THROW; 1249 # else 1250 int sockatmark(int); 1251 # endif 1252 #endif 1253 1254 #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. */ 1255 EXTERN_C int fchdir(int); 1256 EXTERN_C int flock(int, int); 1257 EXTERN_C int fseeko(FILE *, off_t, int); 1258 EXTERN_C off_t ftello(FILE *); 1259 #endif 1260 1261 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */ 1262 EXTERN_C char *crypt(const char *, const char *); 1263 #endif 1264 1265 #if defined(__cplusplus) && defined(__CYGWIN__) 1266 EXTERN_C char *crypt(const char *, const char *); 1267 #endif 1268 1269 #ifdef SETERRNO 1270 # undef SETERRNO /* SOCKS might have defined this */ 1271 #endif 1272 1273 #ifdef VMS 1274 # define SETERRNO(errcode,vmserrcode) \ 1275 STMT_START { \ 1276 set_errno(errcode); \ 1277 set_vaxc_errno(vmserrcode); \ 1278 } STMT_END 1279 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno 1280 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno 1281 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno ) 1282 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno) 1283 1284 # define LIB_INVARG LIB$_INVARG 1285 # define RMS_DIR RMS$_DIR 1286 # define RMS_FAC RMS$_FAC 1287 # define RMS_FEX RMS$_FEX 1288 # define RMS_FNF RMS$_FNF 1289 # define RMS_IFI RMS$_IFI 1290 # define RMS_ISI RMS$_ISI 1291 # define RMS_PRV RMS$_PRV 1292 # define SS_ACCVIO SS$_ACCVIO 1293 # define SS_DEVOFFLINE SS$_DEVOFFLINE 1294 # define SS_IVCHAN SS$_IVCHAN 1295 # define SS_NORMAL SS$_NORMAL 1296 # define SS_NOPRIV SS$_NOPRIV 1297 # define SS_BUFFEROVF SS$_BUFFEROVF 1298 #else 1299 # define LIB_INVARG 0 1300 # define RMS_DIR 0 1301 # define RMS_FAC 0 1302 # define RMS_FEX 0 1303 # define RMS_FNF 0 1304 # define RMS_IFI 0 1305 # define RMS_ISI 0 1306 # define RMS_PRV 0 1307 # define SS_ACCVIO 0 1308 # define SS_DEVOFFLINE 0 1309 # define SS_IVCHAN 0 1310 # define SS_NORMAL 0 1311 # define SS_NOPRIV 0 1312 # define SS_BUFFEROVF 0 1313 #endif 1314 1315 #ifdef WIN32 1316 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno 1317 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError() 1318 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() ) 1319 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) ) 1320 #endif 1321 1322 #ifdef OS2 1323 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno 1324 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc 1325 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc ) 1326 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno ) 1327 #endif 1328 1329 #ifndef SETERRNO 1330 # define SETERRNO(errcode,vmserrcode) (errno = (errcode)) 1331 #endif 1332 1333 #ifndef dSAVEDERRNO 1334 # define dSAVEDERRNO int saved_errno 1335 # define dSAVE_ERRNO int saved_errno = errno 1336 # define SAVE_ERRNO (saved_errno = errno) 1337 # define RESTORE_ERRNO (errno = saved_errno) 1338 #endif 1339 1340 #define ERRSV GvSVn(PL_errgv) 1341 1342 /* contains inlined gv_add_by_type */ 1343 #define CLEAR_ERRSV() STMT_START { \ 1344 SV ** const svp = &GvSV(PL_errgv); \ 1345 if (!*svp) { \ 1346 *svp = newSVpvs(""); \ 1347 } else if (SvREADONLY(*svp)) { \ 1348 SvREFCNT_dec_NN(*svp); \ 1349 *svp = newSVpvs(""); \ 1350 } else { \ 1351 SV *const errsv = *svp; \ 1352 SvPVCLEAR(errsv); \ 1353 SvPOK_only(errsv); \ 1354 if (SvMAGICAL(errsv)) { \ 1355 mg_free(errsv); \ 1356 } \ 1357 } \ 1358 } STMT_END 1359 1360 1361 #ifdef PERL_CORE 1362 # define DEFSV (0 + GvSVn(PL_defgv)) 1363 # define DEFSV_set(sv) \ 1364 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv)) 1365 # define SAVE_DEFSV \ 1366 ( \ 1367 save_gp(PL_defgv, 0), \ 1368 GvINTRO_off(PL_defgv), \ 1369 SAVEGENERICSV(GvSV(PL_defgv)), \ 1370 GvSV(PL_defgv) = NULL \ 1371 ) 1372 #else 1373 # define DEFSV GvSVn(PL_defgv) 1374 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv)) 1375 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv)) 1376 #endif 1377 1378 #ifndef errno 1379 extern int errno; /* ANSI allows errno to be an lvalue expr. 1380 * For example in multithreaded environments 1381 * something like this might happen: 1382 * extern int *_errno(void); 1383 * #define errno (*_errno()) */ 1384 #endif 1385 1386 #define UNKNOWN_ERRNO_MSG "(unknown)" 1387 1388 #if VMS 1389 #define Strerror(e) strerror((e), vaxc$errno) 1390 #else 1391 #define Strerror(e) strerror(e) 1392 #endif 1393 1394 #ifdef I_SYS_IOCTL 1395 # ifndef _IOCTL_ 1396 # include <sys/ioctl.h> 1397 # endif 1398 #endif 1399 1400 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000) 1401 # ifdef HAS_SOCKETPAIR 1402 # undef HAS_SOCKETPAIR 1403 # endif 1404 # ifdef I_NDBM 1405 # undef I_NDBM 1406 # endif 1407 #endif 1408 1409 #ifndef HAS_SOCKETPAIR 1410 # ifdef HAS_SOCKET 1411 # define socketpair Perl_my_socketpair 1412 # endif 1413 #endif 1414 1415 #if INTSIZE == 2 1416 # define htoni htons 1417 # define ntohi ntohs 1418 #else 1419 # define htoni htonl 1420 # define ntohi ntohl 1421 #endif 1422 1423 /* Configure already sets Direntry_t */ 1424 #if defined(I_DIRENT) 1425 # include <dirent.h> 1426 #elif defined(I_SYS_NDIR) 1427 # include <sys/ndir.h> 1428 #elif defined(I_SYS_DIR) 1429 # include <sys/dir.h> 1430 #endif 1431 1432 /* 1433 * The following gobbledygook brought to you on behalf of __STDC__. 1434 * (I could just use #ifndef __STDC__, but this is more bulletproof 1435 * in the face of half-implementations.) 1436 */ 1437 1438 #if defined(I_SYSMODE) 1439 #include <sys/mode.h> 1440 #endif 1441 1442 #ifndef S_IFMT 1443 # ifdef _S_IFMT 1444 # define S_IFMT _S_IFMT 1445 # else 1446 # define S_IFMT 0170000 1447 # endif 1448 #endif 1449 1450 #ifndef S_ISDIR 1451 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR) 1452 #endif 1453 1454 #ifndef S_ISCHR 1455 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR) 1456 #endif 1457 1458 #ifndef S_ISBLK 1459 # ifdef S_IFBLK 1460 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK) 1461 # else 1462 # define S_ISBLK(m) (0) 1463 # endif 1464 #endif 1465 1466 #ifndef S_ISREG 1467 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG) 1468 #endif 1469 1470 #ifndef S_ISFIFO 1471 # ifdef S_IFIFO 1472 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO) 1473 # else 1474 # define S_ISFIFO(m) (0) 1475 # endif 1476 #endif 1477 1478 #ifndef S_ISLNK 1479 # ifdef _S_ISLNK 1480 # define S_ISLNK(m) _S_ISLNK(m) 1481 # elif defined(_S_IFLNK) 1482 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK) 1483 # elif defined(S_IFLNK) 1484 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK) 1485 # else 1486 # define S_ISLNK(m) (0) 1487 # endif 1488 #endif 1489 1490 #ifndef S_ISSOCK 1491 # ifdef _S_ISSOCK 1492 # define S_ISSOCK(m) _S_ISSOCK(m) 1493 # elif defined(_S_IFSOCK) 1494 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK) 1495 # elif defined(S_IFSOCK) 1496 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK) 1497 # else 1498 # define S_ISSOCK(m) (0) 1499 # endif 1500 #endif 1501 1502 #ifndef S_IRUSR 1503 # ifdef S_IREAD 1504 # define S_IRUSR S_IREAD 1505 # define S_IWUSR S_IWRITE 1506 # define S_IXUSR S_IEXEC 1507 # else 1508 # define S_IRUSR 0400 1509 # define S_IWUSR 0200 1510 # define S_IXUSR 0100 1511 # endif 1512 #endif 1513 1514 #ifndef S_IRGRP 1515 # ifdef S_IRUSR 1516 # define S_IRGRP (S_IRUSR>>3) 1517 # define S_IWGRP (S_IWUSR>>3) 1518 # define S_IXGRP (S_IXUSR>>3) 1519 # else 1520 # define S_IRGRP 0040 1521 # define S_IWGRP 0020 1522 # define S_IXGRP 0010 1523 # endif 1524 #endif 1525 1526 #ifndef S_IROTH 1527 # ifdef S_IRUSR 1528 # define S_IROTH (S_IRUSR>>6) 1529 # define S_IWOTH (S_IWUSR>>6) 1530 # define S_IXOTH (S_IXUSR>>6) 1531 # else 1532 # define S_IROTH 0040 1533 # define S_IWOTH 0020 1534 # define S_IXOTH 0010 1535 # endif 1536 #endif 1537 1538 #ifndef S_ISUID 1539 # define S_ISUID 04000 1540 #endif 1541 1542 #ifndef S_ISGID 1543 # define S_ISGID 02000 1544 #endif 1545 1546 #ifndef S_IRWXU 1547 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR) 1548 #endif 1549 1550 #ifndef S_IRWXG 1551 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP) 1552 #endif 1553 1554 #ifndef S_IRWXO 1555 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH) 1556 #endif 1557 1558 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h> 1559 * which would get included through <sys/file.h >, but that is 3000 1560 * lines in the future. --jhi */ 1561 1562 #if !defined(S_IREAD) && !defined(__HAIKU__) 1563 # define S_IREAD S_IRUSR 1564 #endif 1565 1566 #if !defined(S_IWRITE) && !defined(__HAIKU__) 1567 # define S_IWRITE S_IWUSR 1568 #endif 1569 1570 #ifndef S_IEXEC 1571 # define S_IEXEC S_IXUSR 1572 #endif 1573 1574 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr) 1575 # define SLOPPYDIVIDE 1576 #endif 1577 1578 #ifdef UV 1579 #undef UV 1580 #endif 1581 1582 /* This used to be conditionally defined based on whether we had a sprintf() 1583 * that correctly returns the string length (as required by C89), but we no 1584 * longer need that. XS modules can (and do) use this name, so it must remain 1585 * a part of the API that's visible to modules. But we no longer document it 1586 * either (because using sprintf() rather than snprintf() is almost always 1587 * a bad idea). */ 1588 #define my_sprintf sprintf 1589 1590 /* 1591 * If we have v?snprintf() and the C99 variadic macros, we can just 1592 * use just the v?snprintf(). It is nice to try to trap the buffer 1593 * overflow, however, so if we are DEBUGGING, and we cannot use the 1594 * gcc statement expressions, then use the function wrappers which try 1595 * to trap the overflow. If we can use the gcc statement expressions, 1596 * we can try that even with the version that uses the C99 variadic 1597 * macros. 1598 */ 1599 1600 /* Note that we do not check against snprintf()/vsnprintf() returning 1601 * negative values because that is non-standard behaviour and we use 1602 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and 1603 * that should be true only if the snprintf()/vsnprintf() are true 1604 * to the standard. */ 1605 1606 #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 1607 1608 #ifdef USE_QUADMATH 1609 # define my_snprintf Perl_my_snprintf 1610 # define PERL_MY_SNPRINTF_GUARDED 1611 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC) 1612 # ifdef PERL_USE_GCC_BRACE_GROUPS 1613 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; }) 1614 # define PERL_MY_SNPRINTF_GUARDED 1615 # else 1616 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__) 1617 # endif 1618 #else 1619 # define my_snprintf Perl_my_snprintf 1620 # define PERL_MY_SNPRINTF_GUARDED 1621 #endif 1622 1623 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf() 1624 * dies if called under USE_QUADMATH. */ 1625 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC) 1626 # ifdef PERL_USE_GCC_BRACE_GROUPS 1627 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; }) 1628 # define PERL_MY_VSNPRINTF_GUARDED 1629 # else 1630 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__) 1631 # endif 1632 #else 1633 # define my_vsnprintf Perl_my_vsnprintf 1634 # define PERL_MY_VSNPRINTF_GUARDED 1635 #endif 1636 1637 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD() 1638 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore 1639 * the result of my_snprintf() or my_vsnprintf(). (No, you should not 1640 * completely ignore it: otherwise you cannot know whether your output 1641 * was too long.) 1642 * 1643 * int len = my_sprintf(buf, max, ...); 1644 * PERL_MY_SNPRINTF_POST_GUARD(len, max); 1645 * 1646 * The trick is that in certain platforms [a] the my_sprintf() already 1647 * contains the sanity check, while in certain platforms [b] it needs 1648 * to be done as a separate step. The POST_GUARD is that step-- in [a] 1649 * platforms the POST_GUARD actually does nothing since the check has 1650 * already been done. Watch out for the max being the same in both calls. 1651 * 1652 * If you actually use the snprintf/vsnprintf return value already, 1653 * you assumedly are checking its validity somehow. But you can 1654 * insert the POST_GUARD() also in that case. */ 1655 1656 #ifndef PERL_MY_SNPRINTF_GUARDED 1657 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf) 1658 #else 1659 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len) 1660 #endif 1661 1662 #ifndef PERL_MY_VSNPRINTF_GUARDED 1663 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf) 1664 #else 1665 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len) 1666 #endif 1667 1668 #ifdef HAS_STRLCAT 1669 # define my_strlcat strlcat 1670 #else 1671 # define my_strlcat Perl_my_strlcat 1672 #endif 1673 1674 #if defined(PERL_CORE) || defined(PERL_EXT) 1675 # ifdef HAS_MEMRCHR 1676 # define my_memrchr memrchr 1677 # else 1678 # define my_memrchr S_my_memrchr 1679 # endif 1680 #endif 1681 1682 #ifdef HAS_STRLCPY 1683 # define my_strlcpy strlcpy 1684 #else 1685 # define my_strlcpy Perl_my_strlcpy 1686 #endif 1687 1688 #ifdef HAS_STRNLEN 1689 # define my_strnlen strnlen 1690 #else 1691 # define my_strnlen Perl_my_strnlen 1692 #endif 1693 1694 /* 1695 The IV type is supposed to be long enough to hold any integral 1696 value or a pointer. 1697 --Andy Dougherty August 1996 1698 */ 1699 1700 typedef IVTYPE IV; 1701 typedef UVTYPE UV; 1702 1703 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD) 1704 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX) 1705 # define IV_MAX INT64_MAX 1706 # define IV_MIN INT64_MIN 1707 # define UV_MAX UINT64_MAX 1708 # ifndef UINT64_MIN 1709 # define UINT64_MIN 0 1710 # endif 1711 # define UV_MIN UINT64_MIN 1712 # else 1713 # define IV_MAX PERL_QUAD_MAX 1714 # define IV_MIN PERL_QUAD_MIN 1715 # define UV_MAX PERL_UQUAD_MAX 1716 # define UV_MIN PERL_UQUAD_MIN 1717 # endif 1718 # define IV_IS_QUAD 1719 # define UV_IS_QUAD 1720 #else 1721 # if defined(INT32_MAX) && IVSIZE == 4 1722 # define IV_MAX INT32_MAX 1723 # define IV_MIN INT32_MIN 1724 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */ 1725 # define UV_MAX UINT32_MAX 1726 # else 1727 # define UV_MAX 4294967295U 1728 # endif 1729 # ifndef UINT32_MIN 1730 # define UINT32_MIN 0 1731 # endif 1732 # define UV_MIN UINT32_MIN 1733 # else 1734 # define IV_MAX PERL_LONG_MAX 1735 # define IV_MIN PERL_LONG_MIN 1736 # define UV_MAX PERL_ULONG_MAX 1737 # define UV_MIN PERL_ULONG_MIN 1738 # endif 1739 # if IVSIZE == 8 1740 # define IV_IS_QUAD 1741 # define UV_IS_QUAD 1742 # ifndef HAS_QUAD 1743 # define HAS_QUAD 1744 # endif 1745 # else 1746 # undef IV_IS_QUAD 1747 # undef UV_IS_QUAD 1748 #if !defined(PERL_CORE) || defined(USING_MSVC6) 1749 /* We think that removing this decade-old undef this will cause too much 1750 breakage on CPAN for too little gain. (See RT #119753) 1751 However, we do need HAS_QUAD in the core for use by the drand48 code, 1752 but not for Win32 VC6 because it has poor __int64 support. */ 1753 # undef HAS_QUAD 1754 #endif 1755 # endif 1756 #endif 1757 1758 #define Size_t_MAX (~(Size_t)0) 1759 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1) 1760 1761 #define IV_DIG (BIT_DIGITS(IVSIZE * 8)) 1762 #define UV_DIG (BIT_DIGITS(UVSIZE * 8)) 1763 1764 #ifndef NO_PERL_PRESERVE_IVUV 1765 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */ 1766 #endif 1767 1768 /* 1769 * The macros INT2PTR and NUM2PTR are (despite their names) 1770 * bi-directional: they will convert int/float to or from pointers. 1771 * However the conversion to int/float are named explicitly: 1772 * PTR2IV, PTR2UV, PTR2NV. 1773 * 1774 * For int conversions we do not need two casts if pointers are 1775 * the same size as IV and UV. Otherwise we need an explicit 1776 * cast (PTRV) to avoid compiler warnings. 1777 */ 1778 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE) 1779 # define PTRV UV 1780 # define INT2PTR(any,d) (any)(d) 1781 #elif PTRSIZE == LONGSIZE 1782 # define PTRV unsigned long 1783 # define PTR2ul(p) (unsigned long)(p) 1784 #else 1785 # define PTRV unsigned 1786 #endif 1787 1788 #ifndef INT2PTR 1789 # define INT2PTR(any,d) (any)(PTRV)(d) 1790 #endif 1791 1792 #ifndef PTR2ul 1793 # define PTR2ul(p) INT2PTR(unsigned long,p) 1794 #endif 1795 1796 #define NUM2PTR(any,d) (any)(PTRV)(d) 1797 #define PTR2IV(p) INT2PTR(IV,p) 1798 #define PTR2UV(p) INT2PTR(UV,p) 1799 #define PTR2NV(p) NUM2PTR(NV,p) 1800 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */ 1801 1802 /* According to strict ANSI C89 one cannot freely cast between 1803 * data pointers and function (code) pointers. There are at least 1804 * two ways around this. One (used below) is to do two casts, 1805 * first the other pointer to an (unsigned) integer, and then 1806 * the integer to the other pointer. The other way would be 1807 * to use unions to "overlay" the pointers. For an example of 1808 * the latter technique, see union dirpu in struct xpvio in sv.h. 1809 * The only feasible use is probably temporarily storing 1810 * function pointers in a data pointer (such as a void pointer). */ 1811 1812 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */ 1813 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */ 1814 1815 #ifdef USE_LONG_DOUBLE 1816 # if LONG_DOUBLESIZE == DOUBLESIZE 1817 # define LONG_DOUBLE_EQUALS_DOUBLE 1818 # undef USE_LONG_DOUBLE /* Ouch! */ 1819 # endif 1820 #endif 1821 1822 /* The following is all to get LDBL_DIG, in order to pick a nice 1823 default value for printing floating point numbers in Gconvert. 1824 (see config.h) 1825 */ 1826 #ifndef HAS_LDBL_DIG 1827 # if LONG_DOUBLESIZE == 10 1828 # define LDBL_DIG 18 /* assume IEEE */ 1829 # elif LONG_DOUBLESIZE == 12 1830 # define LDBL_DIG 18 /* gcc? */ 1831 # elif LONG_DOUBLESIZE == 16 1832 # define LDBL_DIG 33 /* assume IEEE */ 1833 # elif LONG_DOUBLESIZE == DOUBLESIZE 1834 # define LDBL_DIG DBL_DIG /* bummer */ 1835 # endif 1836 #endif 1837 1838 typedef NVTYPE NV; 1839 1840 #ifdef I_IEEEFP 1841 # include <ieeefp.h> 1842 #endif 1843 1844 #ifdef USING_MSVC6 1845 /* VC6 has broken NaN semantics: NaN == NaN returns true instead of false, 1846 * and for example NaN < IV_MIN. */ 1847 # define NAN_COMPARE_BROKEN 1848 #endif 1849 #if defined(__DECC) && defined(__osf__) 1850 /* Also Tru64 cc has broken NaN comparisons. */ 1851 # define NAN_COMPARE_BROKEN 1852 #endif 1853 #if defined(__sgi) 1854 # define NAN_COMPARE_BROKEN 1855 #endif 1856 1857 #ifdef USE_LONG_DOUBLE 1858 # ifdef I_SUNMATH 1859 # include <sunmath.h> 1860 # endif 1861 # if defined(LDBL_DIG) 1862 # define NV_DIG LDBL_DIG 1863 # ifdef LDBL_MANT_DIG 1864 # define NV_MANT_DIG LDBL_MANT_DIG 1865 # endif 1866 # ifdef LDBL_MIN 1867 # define NV_MIN LDBL_MIN 1868 # endif 1869 # ifdef LDBL_MAX 1870 # define NV_MAX LDBL_MAX 1871 # endif 1872 # ifdef LDBL_MIN_EXP 1873 # define NV_MIN_EXP LDBL_MIN_EXP 1874 # endif 1875 # ifdef LDBL_MAX_EXP 1876 # define NV_MAX_EXP LDBL_MAX_EXP 1877 # endif 1878 # ifdef LDBL_MIN_10_EXP 1879 # define NV_MIN_10_EXP LDBL_MIN_10_EXP 1880 # endif 1881 # ifdef LDBL_MAX_10_EXP 1882 # define NV_MAX_10_EXP LDBL_MAX_10_EXP 1883 # endif 1884 # ifdef LDBL_EPSILON 1885 # define NV_EPSILON LDBL_EPSILON 1886 # endif 1887 # ifdef LDBL_MAX 1888 # define NV_MAX LDBL_MAX 1889 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */ 1890 # elif defined(HUGE_VALL) 1891 # define NV_MAX HUGE_VALL 1892 # endif 1893 # endif 1894 # if defined(HAS_SQRTL) 1895 # define Perl_acos acosl 1896 # define Perl_asin asinl 1897 # define Perl_atan atanl 1898 # define Perl_atan2 atan2l 1899 # define Perl_ceil ceill 1900 # define Perl_cos cosl 1901 # define Perl_cosh coshl 1902 # define Perl_exp expl 1903 /* no Perl_fabs, but there's PERL_ABS */ 1904 # define Perl_floor floorl 1905 # define Perl_fmod fmodl 1906 # define Perl_log logl 1907 # define Perl_log10 log10l 1908 # define Perl_pow powl 1909 # define Perl_sin sinl 1910 # define Perl_sinh sinhl 1911 # define Perl_sqrt sqrtl 1912 # define Perl_tan tanl 1913 # define Perl_tanh tanhl 1914 # endif 1915 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */ 1916 # ifndef Perl_modf 1917 # ifdef HAS_MODFL 1918 # define Perl_modf(x,y) modfl(x,y) 1919 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no 1920 prototype in <math.h> */ 1921 # ifndef HAS_MODFL_PROTO 1922 EXTERN_C long double modfl(long double, long double *); 1923 # endif 1924 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL) 1925 extern long double Perl_my_modfl(long double x, long double *ip); 1926 # define Perl_modf(x,y) Perl_my_modfl(x,y) 1927 # endif 1928 # endif 1929 # ifndef Perl_frexp 1930 # ifdef HAS_FREXPL 1931 # define Perl_frexp(x,y) frexpl(x,y) 1932 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL) 1933 extern long double Perl_my_frexpl(long double x, int *e); 1934 # define Perl_frexp(x,y) Perl_my_frexpl(x,y) 1935 # endif 1936 # endif 1937 # ifndef Perl_ldexp 1938 # ifdef HAS_LDEXPL 1939 # define Perl_ldexp(x, y) ldexpl(x,y) 1940 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2 1941 # define Perl_ldexp(x,y) scalbnl(x,y) 1942 # endif 1943 # endif 1944 # ifndef Perl_isnan 1945 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99)) 1946 # define Perl_isnan(x) isnanl(x) 1947 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */ 1948 # define Perl_isnan(x) isnan(x) 1949 # endif 1950 # endif 1951 # ifndef Perl_isinf 1952 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99)) 1953 # define Perl_isinf(x) isinfl(x) 1954 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */ 1955 # define Perl_isinf(x) isinf(x) 1956 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN) 1957 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX) 1958 # endif 1959 # endif 1960 # ifndef Perl_isfinite 1961 # define Perl_isfinite(x) Perl_isfinitel(x) 1962 # endif 1963 #elif defined(USE_QUADMATH) && defined(I_QUADMATH) 1964 # include <quadmath.h> 1965 # define NV_DIG FLT128_DIG 1966 # define NV_MANT_DIG FLT128_MANT_DIG 1967 # define NV_MIN FLT128_MIN 1968 # define NV_MAX FLT128_MAX 1969 # define NV_MIN_EXP FLT128_MIN_EXP 1970 # define NV_MAX_EXP FLT128_MAX_EXP 1971 # define NV_EPSILON FLT128_EPSILON 1972 # define NV_MIN_10_EXP FLT128_MIN_10_EXP 1973 # define NV_MAX_10_EXP FLT128_MAX_10_EXP 1974 # define Perl_acos acosq 1975 # define Perl_asin asinq 1976 # define Perl_atan atanq 1977 # define Perl_atan2 atan2q 1978 # define Perl_ceil ceilq 1979 # define Perl_cos cosq 1980 # define Perl_cosh coshq 1981 # define Perl_exp expq 1982 /* no Perl_fabs, but there's PERL_ABS */ 1983 # define Perl_floor floorq 1984 # define Perl_fmod fmodq 1985 # define Perl_log logq 1986 # define Perl_log10 log10q 1987 # define Perl_signbit signbitq 1988 # define Perl_pow powq 1989 # define Perl_sin sinq 1990 # define Perl_sinh sinhq 1991 # define Perl_sqrt sqrtq 1992 # define Perl_tan tanq 1993 # define Perl_tanh tanhq 1994 # define Perl_modf(x,y) modfq(x,y) 1995 # define Perl_frexp(x,y) frexpq(x,y) 1996 # define Perl_ldexp(x, y) ldexpq(x,y) 1997 # define Perl_isinf(x) isinfq(x) 1998 # define Perl_isnan(x) isnanq(x) 1999 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x)) 2000 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1) 2001 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3) 2002 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4) 2003 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1) 2004 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2) 2005 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0) 2006 #else 2007 # define NV_DIG DBL_DIG 2008 # define NV_MANT_DIG DBL_MANT_DIG 2009 # define NV_MIN DBL_MIN 2010 # define NV_MAX DBL_MAX 2011 # define NV_MIN_EXP DBL_MIN_EXP 2012 # define NV_MAX_EXP DBL_MAX_EXP 2013 # define NV_MIN_10_EXP DBL_MIN_10_EXP 2014 # define NV_MAX_10_EXP DBL_MAX_10_EXP 2015 # define NV_EPSILON DBL_EPSILON 2016 # define NV_MAX DBL_MAX 2017 # define NV_MIN DBL_MIN 2018 2019 /* These math interfaces are C89. */ 2020 # define Perl_acos acos 2021 # define Perl_asin asin 2022 # define Perl_atan atan 2023 # define Perl_atan2 atan2 2024 # define Perl_ceil ceil 2025 # define Perl_cos cos 2026 # define Perl_cosh cosh 2027 # define Perl_exp exp 2028 /* no Perl_fabs, but there's PERL_ABS */ 2029 # define Perl_floor floor 2030 # define Perl_fmod fmod 2031 # define Perl_log log 2032 # define Perl_log10 log10 2033 # define Perl_pow pow 2034 # define Perl_sin sin 2035 # define Perl_sinh sinh 2036 # define Perl_sqrt sqrt 2037 # define Perl_tan tan 2038 # define Perl_tanh tanh 2039 2040 # define Perl_modf(x,y) modf(x,y) 2041 # define Perl_frexp(x,y) frexp(x,y) 2042 # define Perl_ldexp(x,y) ldexp(x,y) 2043 2044 # ifndef Perl_isnan 2045 # ifdef HAS_ISNAN 2046 # define Perl_isnan(x) isnan(x) 2047 # endif 2048 # endif 2049 # ifndef Perl_isinf 2050 # if defined(HAS_ISINF) 2051 # define Perl_isinf(x) isinf(x) 2052 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN) 2053 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX) 2054 # endif 2055 # endif 2056 # ifndef Perl_isfinite 2057 # ifdef HAS_ISFINITE 2058 # define Perl_isfinite(x) isfinite(x) 2059 # elif defined(HAS_FINITE) 2060 # define Perl_isfinite(x) finite(x) 2061 # endif 2062 # endif 2063 #endif 2064 2065 /* fpclassify(): C99. It is supposed to be a macro that switches on 2066 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/ 2067 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY) 2068 # include <math.h> 2069 # if defined(FP_INFINITE) && defined(FP_NAN) 2070 # define Perl_fp_class(x) fpclassify(x) 2071 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE) 2072 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN) 2073 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL) 2074 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL) 2075 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO) 2076 # elif defined(FP_PLUS_INF) && defined(FP_QNAN) 2077 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is 2078 * actually not the C99 fpclassify, with its own set of return defines. */ 2079 # define Perl_fp_class(x) fpclassify(x) 2080 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF) 2081 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF) 2082 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2083 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2084 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM) 2085 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM) 2086 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM) 2087 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM) 2088 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO) 2089 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO) 2090 # else 2091 # undef Perl_fp_class /* Unknown set of defines */ 2092 # endif 2093 #endif 2094 2095 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however, 2096 * are identical to the C99 fpclassify(). */ 2097 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY) 2098 # include <math.h> 2099 # ifdef __VMS 2100 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */ 2101 # include <fp.h> 2102 /* oh, and the isnormal macro has a typo in it! */ 2103 # undef isnormal 2104 # define isnormal(x) Perl_fp_class_norm(x) 2105 # endif 2106 # if defined(FP_INFINITE) && defined(FP_NAN) 2107 # define Perl_fp_class(x) fp_classify(x) 2108 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE) 2109 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN) 2110 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL) 2111 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL) 2112 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO) 2113 # else 2114 # undef Perl_fp_class /* Unknown set of defines */ 2115 # endif 2116 #endif 2117 2118 /* Feel free to check with me for the SGI manpages, SGI testing, 2119 * etcetera, if you want to try getting this to work with IRIX. 2120 * 2121 * - Allen <allens@cpan.org> */ 2122 2123 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */ 2124 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL)) 2125 /* Solaris and IRIX have fpclass/fpclassl, but they are using 2126 * an enum typedef, not cpp symbols, and Configure doesn't detect that. 2127 * Define some symbols also as cpp symbols so we can detect them. */ 2128 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */ 2129 # define FP_PINF FP_PINF 2130 # define FP_QNAN FP_QNAN 2131 # endif 2132 # include <math.h> 2133 # ifdef I_IEEFP 2134 # include <ieeefp.h> 2135 # endif 2136 # ifdef I_FP 2137 # include <fp.h> 2138 # endif 2139 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL) 2140 # define Perl_fp_class(x) fpclassl(x) 2141 # else 2142 # define Perl_fp_class(x) fpclass(x) 2143 # endif 2144 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN) 2145 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN) 2146 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN) 2147 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF) 2148 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF) 2149 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM) 2150 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM) 2151 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM) 2152 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM) 2153 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO) 2154 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO) 2155 # elif defined(FP_PINF) && defined(FP_QNAN) 2156 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2157 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2158 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF) 2159 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF) 2160 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM) 2161 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM) 2162 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM) 2163 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM) 2164 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO) 2165 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO) 2166 # else 2167 # undef Perl_fp_class /* Unknown set of defines */ 2168 # endif 2169 #endif 2170 2171 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */ 2172 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL)) 2173 # include <math.h> 2174 # if !defined(FP_SNAN) && defined(I_FP_CLASS) 2175 # include <fp_class.h> 2176 # endif 2177 # if defined(FP_POS_INF) && defined(FP_QNAN) 2178 # ifdef __sgi /* XXX Configure test instead */ 2179 # ifdef USE_LONG_DOUBLE 2180 # define Perl_fp_class(x) fp_class_l(x) 2181 # else 2182 # define Perl_fp_class(x) fp_class_d(x) 2183 # endif 2184 # else 2185 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL) 2186 # define Perl_fp_class(x) fp_classl(x) 2187 # else 2188 # define Perl_fp_class(x) fp_class(x) 2189 # endif 2190 # endif 2191 # if defined(FP_POS_INF) && defined(FP_QNAN) 2192 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2193 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2194 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF) 2195 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF) 2196 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM) 2197 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM) 2198 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM) 2199 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM) 2200 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO) 2201 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO) 2202 # else 2203 # undef Perl_fp_class /* Unknown set of defines */ 2204 # endif 2205 # endif 2206 #endif 2207 2208 /* class(), _class(): Legacy: AIX. */ 2209 #if !defined(Perl_fp_class) && defined(HAS_CLASS) 2210 # include <math.h> 2211 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF) 2212 # ifndef _cplusplus 2213 # define Perl_fp_class(x) class(x) 2214 # else 2215 # define Perl_fp_class(x) _class(x) 2216 # endif 2217 # if defined(FP_PLUS_INF) && defined(FP_NANQ) 2218 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS) 2219 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ) 2220 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF) 2221 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF) 2222 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM) 2223 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM) 2224 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM) 2225 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM) 2226 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO) 2227 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO) 2228 # else 2229 # undef Perl_fp_class /* Unknown set of defines */ 2230 # endif 2231 # endif 2232 #endif 2233 2234 /* Win32: _fpclass(), _isnan(), _finite(). */ 2235 #ifdef _MSC_VER 2236 # ifndef Perl_isnan 2237 # define Perl_isnan(x) _isnan(x) 2238 # endif 2239 # ifndef Perl_isfinite 2240 # define Perl_isfinite(x) _finite(x) 2241 # endif 2242 # ifndef Perl_fp_class_snan 2243 /* No simple way to #define Perl_fp_class because _fpclass() 2244 * returns a set of bits. */ 2245 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN) 2246 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN) 2247 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN)) 2248 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF)) 2249 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF)) 2250 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF)) 2251 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN) 2252 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN) 2253 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN)) 2254 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND) 2255 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD) 2256 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD)) 2257 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ) 2258 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ) 2259 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ)) 2260 # endif 2261 #endif 2262 2263 #if !defined(Perl_fp_class_inf) && \ 2264 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf) 2265 # define Perl_fp_class_inf(x) \ 2266 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x)) 2267 #endif 2268 2269 #if !defined(Perl_fp_class_nan) && \ 2270 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan) 2271 # define Perl_fp_class_nan(x) \ 2272 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x)) 2273 #endif 2274 2275 #if !defined(Perl_fp_class_zero) && \ 2276 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero) 2277 # define Perl_fp_class_zero(x) \ 2278 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x)) 2279 #endif 2280 2281 #if !defined(Perl_fp_class_norm) && \ 2282 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm) 2283 # define Perl_fp_class_norm(x) \ 2284 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x)) 2285 #endif 2286 2287 #if !defined(Perl_fp_class_denorm) && \ 2288 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm) 2289 # define Perl_fp_class_denorm(x) \ 2290 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x)) 2291 #endif 2292 2293 #ifdef UNDER_CE 2294 int isnan(double d); 2295 #endif 2296 2297 #ifndef Perl_isnan 2298 # ifdef Perl_fp_class_nan 2299 # define Perl_isnan(x) Perl_fp_class_nan(x) 2300 # elif defined(HAS_UNORDERED) 2301 # define Perl_isnan(x) unordered((x), 0.0) 2302 # else 2303 # define Perl_isnan(x) ((x)!=(x)) 2304 # endif 2305 #endif 2306 2307 #ifndef Perl_isinf 2308 # ifdef Perl_fp_class_inf 2309 # define Perl_isinf(x) Perl_fp_class_inf(x) 2310 # endif 2311 #endif 2312 2313 #ifndef Perl_isfinite 2314 # if defined(HAS_ISFINITE) && !defined(isfinite) 2315 # define Perl_isfinite(x) isfinite((double)(x)) 2316 # elif defined(HAS_FINITE) 2317 # define Perl_isfinite(x) finite((double)(x)) 2318 # elif defined(Perl_fp_class_finite) 2319 # define Perl_isfinite(x) Perl_fp_class_finite(x) 2320 # else 2321 /* For the infinities the multiplication returns nan, 2322 * for the nan the multiplication also returns nan, 2323 * for everything else (that is, finite) zero should be returned. */ 2324 # define Perl_isfinite(x) (((x) * 0) == 0) 2325 # endif 2326 #endif 2327 2328 #ifndef Perl_isinf 2329 # if defined(Perl_isfinite) && defined(Perl_isnan) 2330 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x)) 2331 # endif 2332 #endif 2333 2334 /* We need Perl_isfinitel (ends with ell) (if available) even when 2335 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags) 2336 * needs that. */ 2337 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel) 2338 /* If isfinite() is a macro and looks like we have C99, 2339 * we assume it's the type-aware C99 isfinite(). */ 2340 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99) 2341 # define Perl_isfinitel(x) isfinite(x) 2342 # elif defined(HAS_ISFINITEL) 2343 # define Perl_isfinitel(x) isfinitel(x) 2344 # elif defined(HAS_FINITEL) 2345 # define Perl_isfinitel(x) finitel(x) 2346 # elif defined(HAS_INFL) && defined(HAS_NANL) 2347 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x)) 2348 # else 2349 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */ 2350 # endif 2351 #endif 2352 2353 /* The default is to use Perl's own atof() implementation (in numeric.c). 2354 * Usually that is the one to use but for some platforms (e.g. UNICOS) 2355 * it is however best to use the native implementation of atof. 2356 * You can experiment with using your native one by -DUSE_PERL_ATOF=0. 2357 * Some good tests to try out with either setting are t/base/num.t, 2358 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles 2359 * you may need to be using a different function than atof! */ 2360 2361 #ifndef USE_PERL_ATOF 2362 # ifndef _UNICOS 2363 # define USE_PERL_ATOF 2364 # endif 2365 #else 2366 # if USE_PERL_ATOF == 0 2367 # undef USE_PERL_ATOF 2368 # endif 2369 #endif 2370 2371 #ifdef USE_PERL_ATOF 2372 # define Perl_atof(s) Perl_my_atof(s) 2373 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0) 2374 #else 2375 # define Perl_atof(s) (NV)atof(s) 2376 # define Perl_atof2(s, n) ((n) = atof(s)) 2377 #endif 2378 #define my_atof2(a,b) my_atof3(a,b,0) 2379 2380 /* 2381 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be 2382 * ambiguous. It may be equivalent to (signed char) or (unsigned char) 2383 * depending on local options. Until Configure detects this (or at least 2384 * detects whether the "signed" keyword is available) the CHAR ranges 2385 * will not be included. UCHAR functions normally. 2386 * - kja 2387 */ 2388 2389 #define PERL_UCHAR_MIN ((unsigned char)0) 2390 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX) 2391 2392 #define PERL_USHORT_MIN ((unsigned short)0) 2393 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX) 2394 2395 #define PERL_SHORT_MAX ((short)SHRT_MAX) 2396 #define PERL_SHORT_MIN ((short)SHRT_MIN) 2397 2398 #define PERL_UINT_MAX ((unsigned int)UINT_MAX) 2399 #define PERL_UINT_MIN ((unsigned int)0) 2400 2401 #define PERL_INT_MAX ((int)INT_MAX) 2402 #define PERL_INT_MIN ((int)INT_MIN) 2403 2404 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX) 2405 #define PERL_ULONG_MIN ((unsigned long)0L) 2406 2407 #define PERL_LONG_MAX ((long)LONG_MAX) 2408 #define PERL_LONG_MIN ((long)LONG_MIN) 2409 2410 #ifdef UV_IS_QUAD 2411 # define PERL_UQUAD_MAX (~(UV)0) 2412 # define PERL_UQUAD_MIN ((UV)0) 2413 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1)) 2414 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3)) 2415 #endif 2416 2417 typedef MEM_SIZE STRLEN; 2418 2419 typedef struct op OP; 2420 typedef struct cop COP; 2421 typedef struct unop UNOP; 2422 typedef struct unop_aux UNOP_AUX; 2423 typedef struct binop BINOP; 2424 typedef struct listop LISTOP; 2425 typedef struct logop LOGOP; 2426 typedef struct pmop PMOP; 2427 typedef struct svop SVOP; 2428 typedef struct padop PADOP; 2429 typedef struct pvop PVOP; 2430 typedef struct loop LOOP; 2431 typedef struct methop METHOP; 2432 2433 #ifdef PERL_CORE 2434 typedef struct opslab OPSLAB; 2435 typedef struct opslot OPSLOT; 2436 #endif 2437 2438 typedef struct block_hooks BHK; 2439 typedef struct custom_op XOP; 2440 2441 typedef struct interpreter PerlInterpreter; 2442 2443 /* SGI's <sys/sema.h> has struct sv */ 2444 #if defined(__sgi) 2445 # define STRUCT_SV perl_sv 2446 #else 2447 # define STRUCT_SV sv 2448 #endif 2449 typedef struct STRUCT_SV SV; 2450 typedef struct av AV; 2451 typedef struct hv HV; 2452 typedef struct cv CV; 2453 typedef struct p5rx REGEXP; 2454 typedef struct gp GP; 2455 typedef struct gv GV; 2456 typedef struct io IO; 2457 typedef struct context PERL_CONTEXT; 2458 typedef struct block BLOCK; 2459 2460 typedef struct magic MAGIC; 2461 typedef struct xpv XPV; 2462 typedef struct xpviv XPVIV; 2463 typedef struct xpvuv XPVUV; 2464 typedef struct xpvnv XPVNV; 2465 typedef struct xpvmg XPVMG; 2466 typedef struct xpvlv XPVLV; 2467 typedef struct xpvinvlist XINVLIST; 2468 typedef struct xpvav XPVAV; 2469 typedef struct xpvhv XPVHV; 2470 typedef struct xpvgv XPVGV; 2471 typedef struct xpvcv XPVCV; 2472 typedef struct xpvbm XPVBM; 2473 typedef struct xpvfm XPVFM; 2474 typedef struct xpvio XPVIO; 2475 typedef struct mgvtbl MGVTBL; 2476 typedef union any ANY; 2477 typedef struct ptr_tbl_ent PTR_TBL_ENT_t; 2478 typedef struct ptr_tbl PTR_TBL_t; 2479 typedef struct clone_params CLONE_PARAMS; 2480 2481 /* a pad is currently just an AV; but that might change, 2482 * so hide the type. */ 2483 typedef struct padlist PADLIST; 2484 typedef AV PAD; 2485 typedef struct padnamelist PADNAMELIST; 2486 typedef struct padname PADNAME; 2487 2488 /* always enable PERL_OP_PARENT */ 2489 #if !defined(PERL_OP_PARENT) 2490 # define PERL_OP_PARENT 2491 #endif 2492 2493 /* enable PERL_COPY_ON_WRITE by default */ 2494 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW) 2495 # define PERL_COPY_ON_WRITE 2496 #endif 2497 2498 #ifdef PERL_COPY_ON_WRITE 2499 # define PERL_ANY_COW 2500 #else 2501 # define PERL_SAWAMPERSAND 2502 #endif 2503 2504 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS) 2505 # error PERL_DEBUG_READONLY_OPS only works with ithreads 2506 #endif 2507 2508 #include "handy.h" 2509 #include "charclass_invlists.h" 2510 2511 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO) 2512 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO) 2513 # define USE_64_BIT_RAWIO /* implicit */ 2514 # endif 2515 #endif 2516 2517 /* Notice the use of HAS_FSEEKO: now we are obligated to always use 2518 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself, 2519 * however, because operating systems like to do that themself. */ 2520 #ifndef FSEEKSIZE 2521 # ifdef HAS_FSEEKO 2522 # define FSEEKSIZE LSEEKSIZE 2523 # else 2524 # define FSEEKSIZE LONGSIZE 2525 # endif 2526 #endif 2527 2528 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO) 2529 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO) 2530 # define USE_64_BIT_STDIO /* implicit */ 2531 # endif 2532 #endif 2533 2534 #ifdef USE_64_BIT_RAWIO 2535 # ifdef HAS_OFF64_T 2536 # undef Off_t 2537 # define Off_t off64_t 2538 # undef LSEEKSIZE 2539 # define LSEEKSIZE 8 2540 # endif 2541 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that 2542 * will trigger defines like the ones below. Some 64-bit environments, 2543 * however, do not. Therefore we have to explicitly mix and match. */ 2544 # if defined(USE_OPEN64) 2545 # define open open64 2546 # endif 2547 # if defined(USE_LSEEK64) 2548 # define lseek lseek64 2549 # else 2550 # if defined(USE_LLSEEK) 2551 # define lseek llseek 2552 # endif 2553 # endif 2554 # if defined(USE_STAT64) 2555 # define stat stat64 2556 # endif 2557 # if defined(USE_FSTAT64) 2558 # define fstat fstat64 2559 # endif 2560 # if defined(USE_LSTAT64) 2561 # define lstat lstat64 2562 # endif 2563 # if defined(USE_FLOCK64) 2564 # define flock flock64 2565 # endif 2566 # if defined(USE_LOCKF64) 2567 # define lockf lockf64 2568 # endif 2569 # if defined(USE_FCNTL64) 2570 # define fcntl fcntl64 2571 # endif 2572 # if defined(USE_TRUNCATE64) 2573 # define truncate truncate64 2574 # endif 2575 # if defined(USE_FTRUNCATE64) 2576 # define ftruncate ftruncate64 2577 # endif 2578 #endif 2579 2580 #ifdef USE_64_BIT_STDIO 2581 # ifdef HAS_FPOS64_T 2582 # undef Fpos_t 2583 # define Fpos_t fpos64_t 2584 # endif 2585 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that 2586 * will trigger defines like the ones below. Some 64-bit environments, 2587 * however, do not. */ 2588 # if defined(USE_FOPEN64) 2589 # define fopen fopen64 2590 # endif 2591 # if defined(USE_FSEEK64) 2592 # define fseek fseek64 /* don't do fseeko here, see perlio.c */ 2593 # endif 2594 # if defined(USE_FTELL64) 2595 # define ftell ftell64 /* don't do ftello here, see perlio.c */ 2596 # endif 2597 # if defined(USE_FSETPOS64) 2598 # define fsetpos fsetpos64 2599 # endif 2600 # if defined(USE_FGETPOS64) 2601 # define fgetpos fgetpos64 2602 # endif 2603 # if defined(USE_TMPFILE64) 2604 # define tmpfile tmpfile64 2605 # endif 2606 # if defined(USE_FREOPEN64) 2607 # define freopen freopen64 2608 # endif 2609 #endif 2610 2611 #if defined(OS2) 2612 # include "iperlsys.h" 2613 #endif 2614 2615 #ifdef DOSISH 2616 # if defined(OS2) 2617 # include "os2ish.h" 2618 # else 2619 # include "dosish.h" 2620 # endif 2621 #elif defined(VMS) 2622 # include "vmsish.h" 2623 #elif defined(PLAN9) 2624 # include "./plan9/plan9ish.h" 2625 #elif defined(__VOS__) 2626 # ifdef __GNUC__ 2627 # include "./vos/vosish.h" 2628 # else 2629 # include "vos/vosish.h" 2630 # endif 2631 #elif defined(__SYMBIAN32__) 2632 # include "symbian/symbianish.h" 2633 #elif defined(__HAIKU__) 2634 # include "haiku/haikuish.h" 2635 #else 2636 # include "unixish.h" 2637 #endif 2638 2639 #ifdef __amigaos4__ 2640 # include "amigaos.h" 2641 # undef FD_CLOEXEC /* a lie in AmigaOS */ 2642 #endif 2643 2644 /* NSIG logic from Configure --> */ 2645 #ifndef NSIG 2646 # ifdef _NSIG 2647 # define NSIG (_NSIG) 2648 # elif defined(SIGMAX) 2649 # define NSIG (SIGMAX+1) 2650 # elif defined(SIG_MAX) 2651 # define NSIG (SIG_MAX+1) 2652 # elif defined(_SIG_MAX) 2653 # define NSIG (_SIG_MAX+1) 2654 # elif defined(MAXSIG) 2655 # define NSIG (MAXSIG+1) 2656 # elif defined(MAX_SIG) 2657 # define NSIG (MAX_SIG+1) 2658 # elif defined(SIGARRAYSIZE) 2659 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 2660 # elif defined(_sys_nsig) 2661 # define NSIG (_sys_nsig) /* Solaris 2.5 */ 2662 # else 2663 /* Default to some arbitrary number that's big enough to get most 2664 * of the common signals. */ 2665 # define NSIG 50 2666 # endif 2667 #endif 2668 /* <-- NSIG logic from Configure */ 2669 2670 #ifndef NO_ENVIRON_ARRAY 2671 # define USE_ENVIRON_ARRAY 2672 #endif 2673 2674 /* 2675 * initialise to avoid floating-point exceptions from overflow, etc 2676 */ 2677 #ifndef PERL_FPU_INIT 2678 # ifdef HAS_FPSETMASK 2679 # if HAS_FLOATINGPOINT_H 2680 # include <floatingpoint.h> 2681 # endif 2682 /* Some operating systems have this as a macro, which in turn expands to a comma 2683 expression, and the last sub-expression is something that gets calculated, 2684 and then they have the gall to warn that a value computed is not used. Hence 2685 cast to void. */ 2686 # define PERL_FPU_INIT (void)fpsetmask(0) 2687 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO) 2688 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN) 2689 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe); 2690 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); } 2691 # else 2692 # define PERL_FPU_INIT 2693 # endif 2694 #endif 2695 #ifndef PERL_FPU_PRE_EXEC 2696 # define PERL_FPU_PRE_EXEC { 2697 # define PERL_FPU_POST_EXEC } 2698 #endif 2699 2700 /* In Tru64 the cc -ieee enables the IEEE math but disables traps. 2701 * We need to reenable the "invalid" trap because otherwise generation 2702 * of NaN values leaves the IEEE fp flags in bad state, leaving any further 2703 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */ 2704 #ifdef __osf__ 2705 # include <machine/fpu.h> 2706 # define PERL_SYS_FPU_INIT \ 2707 STMT_START { \ 2708 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \ 2709 signal(SIGFPE, SIG_IGN); \ 2710 } STMT_END 2711 #endif 2712 /* In IRIX the default for Flush to Zero bit is true, 2713 * which means that results going below the minimum of normal 2714 * floating points go to zero, instead of going denormal/subnormal. 2715 * This is unlike almost any other system running Perl, so let's clear it. 2716 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally 2717 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits 2718 * 2719 * XXX The flush-to-zero behaviour should be a Configure scan. 2720 * To change the behaviour usually requires some system-specific 2721 * incantation, though, like the below. */ 2722 #ifdef __sgi 2723 # include <sys/fpu.h> 2724 # define PERL_SYS_FPU_INIT \ 2725 STMT_START { \ 2726 union fpc_csr csr; \ 2727 csr.fc_word = get_fpc_csr(); \ 2728 csr.fc_struct.flush = 0; \ 2729 set_fpc_csr(csr.fc_word); \ 2730 } STMT_END 2731 #endif 2732 2733 #ifndef PERL_SYS_FPU_INIT 2734 # define PERL_SYS_FPU_INIT NOOP 2735 #endif 2736 2737 #ifndef PERL_SYS_INIT3_BODY 2738 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp) 2739 #endif 2740 2741 /* 2742 =head1 Miscellaneous Functions 2743 2744 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv 2745 Provides system-specific tune up of the C runtime environment necessary to 2746 run Perl interpreters. This should be called only once, before creating 2747 any Perl interpreters. 2748 2749 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env 2750 Provides system-specific tune up of the C runtime environment necessary to 2751 run Perl interpreters. This should be called only once, before creating 2752 any Perl interpreters. 2753 2754 =for apidoc Am|void|PERL_SYS_TERM| 2755 Provides system-specific clean up of the C runtime environment after 2756 running Perl interpreters. This should be called only once, after 2757 freeing any remaining Perl interpreters. 2758 2759 =cut 2760 */ 2761 2762 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv) 2763 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env) 2764 #define PERL_SYS_TERM() Perl_sys_term() 2765 2766 #ifndef PERL_WRITE_MSG_TO_CONSOLE 2767 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len) 2768 #endif 2769 2770 #ifndef MAXPATHLEN 2771 # ifdef PATH_MAX 2772 # ifdef _POSIX_PATH_MAX 2773 # if PATH_MAX > _POSIX_PATH_MAX 2774 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX 2775 * included the null byte or not. Later amendments of POSIX, 2776 * XPG4, the Austin Group, and the Single UNIX Specification 2777 * all explicitly include the null byte in the PATH_MAX. 2778 * Ditto for _POSIX_PATH_MAX. */ 2779 # define MAXPATHLEN PATH_MAX 2780 # else 2781 # define MAXPATHLEN _POSIX_PATH_MAX 2782 # endif 2783 # else 2784 # define MAXPATHLEN (PATH_MAX+1) 2785 # endif 2786 # else 2787 # define MAXPATHLEN 1024 /* Err on the large side. */ 2788 # endif 2789 #endif 2790 2791 /* In case Configure was not used (we are using a "canned config" 2792 * such as Win32, or a cross-compilation setup, for example) try going 2793 * by the gcc major and minor versions. One useful URL is 2794 * http://www.ohse.de/uwe/articles/gcc-attributes.html, 2795 * but contrary to this information warn_unused_result seems 2796 * not to be in gcc 3.3.5, at least. --jhi 2797 * Also, when building extensions with an installed perl, this allows 2798 * the user to upgrade gcc and get the right attributes, rather than 2799 * relying on the list generated at Configure time. --AD 2800 * Set these up now otherwise we get confused when some of the <*thread.h> 2801 * includes below indirectly pull in <perlio.h> (which needs to know if we 2802 * have HASATTRIBUTE_FORMAT). 2803 */ 2804 2805 #ifndef PERL_MICRO 2806 #if defined __GNUC__ && !defined(__INTEL_COMPILER) 2807 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */ 2808 # define HASATTRIBUTE_DEPRECATED 2809 # endif 2810 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */ 2811 # define HASATTRIBUTE_FORMAT 2812 # if defined __MINGW32__ 2813 # define PRINTF_FORMAT_NULL_OK 2814 # endif 2815 # endif 2816 # if __GNUC__ >= 3 /* 3.0 -> */ 2817 # define HASATTRIBUTE_MALLOC 2818 # endif 2819 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */ 2820 # define HASATTRIBUTE_NONNULL 2821 # endif 2822 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */ 2823 # define HASATTRIBUTE_NORETURN 2824 # endif 2825 # if __GNUC__ >= 3 /* gcc 3.0 -> */ 2826 # define HASATTRIBUTE_PURE 2827 # endif 2828 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */ 2829 # define HASATTRIBUTE_UNUSED 2830 # endif 2831 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus) 2832 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */ 2833 # endif 2834 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */ 2835 # define HASATTRIBUTE_WARN_UNUSED_RESULT 2836 # endif 2837 #endif 2838 #endif /* #ifndef PERL_MICRO */ 2839 2840 /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes 2841 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h> 2842 * this results in many functions being undeclared which bothers C++ 2843 * May make sense to have threads after "*ish.h" anyway 2844 */ 2845 2846 /* clang Thread Safety Analysis/Annotations/Attributes 2847 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html 2848 * 2849 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5). 2850 * Apple XCode hijacks __clang_major__ and __clang_minor__ 2851 * (6.1 means really clang 3.6), so needs extra hijinks 2852 * (could probably also test the contents of __apple_build_version__). 2853 */ 2854 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \ 2855 defined(__clang__) && \ 2856 !defined(PERL_GLOBAL_STRUCT) && \ 2857 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \ 2858 !defined(SWIG) && \ 2859 ((!defined(__apple_build_version__) && \ 2860 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \ 2861 (__clang_major__ >= 4))) || \ 2862 (defined(__apple_build_version__) && \ 2863 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \ 2864 (__clang_major__ >= 7)))) 2865 # define PERL_TSA__(x) __attribute__((x)) 2866 # define PERL_TSA_ACTIVE 2867 #else 2868 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */ 2869 # undef PERL_TSA_ACTIVE 2870 #endif 2871 2872 /* PERL_TSA_CAPABILITY() is used to annotate typedefs. 2873 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type; 2874 */ 2875 #define PERL_TSA_CAPABILITY(x) \ 2876 PERL_TSA__(capability(x)) 2877 2878 /* In the below examples the mutex must be lexically visible, usually 2879 * either as global variables, or as function arguments. */ 2880 2881 /* PERL_TSA_GUARDED_BY() is used to annotate global variables. 2882 * 2883 * Foo foo PERL_TSA_GUARDED_BY(mutex); 2884 */ 2885 #define PERL_TSA_GUARDED_BY(x) \ 2886 PERL_TSA__(guarded_by(x)) 2887 2888 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers. 2889 * The data _behind_ the pointer is guarded. 2890 * 2891 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex); 2892 */ 2893 #define PERL_TSA_PT_GUARDED_BY(x) \ 2894 PERL_TSA__(pt_guarded_by(x)) 2895 2896 /* PERL_TSA_REQUIRES() is used to annotate functions. 2897 * The caller MUST hold the resource when calling the function. 2898 * 2899 * void Foo() PERL_TSA_REQUIRES(mutex); 2900 */ 2901 #define PERL_TSA_REQUIRES(x) \ 2902 PERL_TSA__(requires_capability(x)) 2903 2904 /* PERL_TSA_EXCLUDES() is used to annotate functions. 2905 * The caller MUST NOT hold resource when calling the function. 2906 * 2907 * EXCLUDES should be used when the function first acquires 2908 * the resource and then releases it. Use to avoid deadlock. 2909 * 2910 * void Foo() PERL_TSA_EXCLUDES(mutex); 2911 */ 2912 #define PERL_TSA_EXCLUDES(x) \ 2913 PERL_TSA__(locks_excluded(x)) 2914 2915 /* PERL_TSA_ACQUIRE() is used to annotate functions. 2916 * The caller MUST NOT hold the resource when calling the function, 2917 * and the function will acquire the resource. 2918 * 2919 * void Foo() PERL_TSA_ACQUIRE(mutex); 2920 */ 2921 #define PERL_TSA_ACQUIRE(x) \ 2922 PERL_TSA__(acquire_capability(x)) 2923 2924 /* PERL_TSA_RELEASE() is used to annotate functions. 2925 * The caller MUST hold the resource when calling the function, 2926 * and the function will release the resource. 2927 * 2928 * void Foo() PERL_TSA_RELEASE(mutex); 2929 */ 2930 #define PERL_TSA_RELEASE(x) \ 2931 PERL_TSA__(release_capability(x)) 2932 2933 /* PERL_TSA_NO_TSA is used to annotate functions. 2934 * Used when being intentionally unsafe, or when the code is too 2935 * complicated for the analysis. Use sparingly. 2936 * 2937 * void Foo() PERL_TSA_NO_TSA; 2938 */ 2939 #define PERL_TSA_NO_TSA \ 2940 PERL_TSA__(no_thread_safety_analysis) 2941 2942 /* There are more annotations/attributes available, see the clang 2943 * documentation for details. */ 2944 2945 #if defined(USE_ITHREADS) 2946 # ifdef NETWARE 2947 # include <nw5thread.h> 2948 # elif defined(WIN32) 2949 # include <win32thread.h> 2950 # elif defined(OS2) 2951 # include "os2thread.h" 2952 # elif defined(I_MACH_CTHREADS) 2953 # include <mach/cthreads.h> 2954 typedef cthread_t perl_os_thread; 2955 typedef mutex_t perl_mutex; 2956 typedef condition_t perl_cond; 2957 typedef void * perl_key; 2958 # elif defined(I_PTHREAD) /* Posix threads */ 2959 # include <pthread.h> 2960 typedef pthread_t perl_os_thread; 2961 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex; 2962 typedef pthread_cond_t perl_cond; 2963 typedef pthread_key_t perl_key; 2964 # endif 2965 #endif /* USE_ITHREADS */ 2966 2967 #ifdef PERL_TSA_ACTIVE 2968 /* Since most pthread mutex interfaces have not been annotated, we 2969 * need to have these wrappers. The NO_TSA annotation is quite ugly 2970 * but it cannot be avoided in plain C, unlike in C++, where one could 2971 * e.g. use ACQUIRE() with no arg on a mutex lock method. 2972 * 2973 * The bodies of these wrappers are in util.c 2974 * 2975 * TODO: however, some platforms are starting to get these clang 2976 * thread safety annotations for pthreads, for example FreeBSD. 2977 * Do we need a way to a bypass these wrappers? */ 2978 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex) 2979 PERL_TSA_ACQUIRE(*mutex) 2980 PERL_TSA_NO_TSA; 2981 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex) 2982 PERL_TSA_RELEASE(*mutex) 2983 PERL_TSA_NO_TSA; 2984 #endif 2985 2986 #if defined(WIN32) 2987 # include "win32.h" 2988 #endif 2989 2990 #ifdef NETWARE 2991 # include "netware.h" 2992 #endif 2993 2994 #define STATUS_UNIX PL_statusvalue 2995 #ifdef VMS 2996 # define STATUS_NATIVE PL_statusvalue_vms 2997 /* 2998 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise 2999 * its contents can not be trusted. Unfortunately, Perl seems to check 3000 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should 3001 * be updated also. 3002 */ 3003 # include <stsdef.h> 3004 # include <ssdef.h> 3005 /* Presume this because if VMS changes it, it will require a new 3006 * set of APIs for waiting on children for binary compatibility. 3007 */ 3008 # define child_offset_bits (8) 3009 # ifndef C_FAC_POSIX 3010 # define C_FAC_POSIX 0x35A000 3011 # endif 3012 3013 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the 3014 * platform from the existing UNIX or Native status values. 3015 */ 3016 3017 # define STATUS_EXIT \ 3018 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \ 3019 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0)) 3020 3021 3022 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child 3023 * exit code and shifts the UNIX value over the correct number of bits to 3024 * be a child status. Usually the number of bits is 8, but that could be 3025 * platform dependent. The NATIVE status code is presumed to have either 3026 * from a child process. 3027 */ 3028 3029 /* This is complicated. The child processes return a true native VMS 3030 status which must be saved. But there is an assumption in Perl that 3031 the UNIX child status has some relationship to errno values, so 3032 Perl tries to translate it to text in some of the tests. 3033 In order to get the string translation correct, for the error, errno 3034 must be EVMSERR, but that generates a different text message 3035 than what the test programs are expecting. So an errno value must 3036 be derived from the native status value when an error occurs. 3037 That will hide the true native status message. With this version of 3038 perl, the true native child status can always be retrieved so that 3039 is not a problem. But in this case, Pl_statusvalue and errno may 3040 have different values in them. 3041 */ 3042 3043 # define STATUS_NATIVE_CHILD_SET(n) \ 3044 STMT_START { \ 3045 I32 evalue = (I32)n; \ 3046 if (evalue == EVMSERR) { \ 3047 PL_statusvalue_vms = vaxc$errno; \ 3048 PL_statusvalue = evalue; \ 3049 } else { \ 3050 PL_statusvalue_vms = evalue; \ 3051 if (evalue == -1) { \ 3052 PL_statusvalue = -1; \ 3053 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \ 3054 } else \ 3055 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \ 3056 set_vaxc_errno(evalue); \ 3057 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \ 3058 set_errno(EVMSERR); \ 3059 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \ 3060 PL_statusvalue = PL_statusvalue << child_offset_bits; \ 3061 } \ 3062 } STMT_END 3063 3064 # ifdef VMSISH_STATUS 3065 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX) 3066 # else 3067 # define STATUS_CURRENT STATUS_UNIX 3068 # endif 3069 3070 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update 3071 * the NATIVE status to an equivalent value. Can not be used to translate 3072 * exit code values as exit code values are not guaranteed to have any 3073 * relationship at all to errno values. 3074 * This is used when Perl is forcing errno to have a specific value. 3075 */ 3076 # define STATUS_UNIX_SET(n) \ 3077 STMT_START { \ 3078 I32 evalue = (I32)n; \ 3079 PL_statusvalue = evalue; \ 3080 if (PL_statusvalue != -1) { \ 3081 if (PL_statusvalue != EVMSERR) { \ 3082 PL_statusvalue &= 0xFFFF; \ 3083 if (MY_POSIX_EXIT) \ 3084 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\ 3085 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \ 3086 } \ 3087 else { \ 3088 PL_statusvalue_vms = vaxc$errno; \ 3089 } \ 3090 } \ 3091 else PL_statusvalue_vms = SS$_ABORT; \ 3092 set_vaxc_errno(PL_statusvalue_vms); \ 3093 } STMT_END 3094 3095 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets 3096 * the NATIVE error status based on it. 3097 * 3098 * When in the default mode to comply with the Perl VMS documentation, 3099 * 0 is a success and any other code sets the NATIVE status to a failure 3100 * code of SS$_ABORT. 3101 * 3102 * In the new POSIX EXIT mode, native status will be set so that the 3103 * actual exit code will can be retrieved by the calling program or 3104 * shell. 3105 * 3106 * If the exit code is not clearly a UNIX parent or child exit status, 3107 * it will be passed through as a VMS status. 3108 */ 3109 3110 # define STATUS_UNIX_EXIT_SET(n) \ 3111 STMT_START { \ 3112 I32 evalue = (I32)n; \ 3113 PL_statusvalue = evalue; \ 3114 if (MY_POSIX_EXIT) { \ 3115 if (evalue <= 0xFF00) { \ 3116 if (evalue > 0xFF) \ 3117 evalue = (evalue >> child_offset_bits) & 0xFF; \ 3118 PL_statusvalue_vms = \ 3119 (C_FAC_POSIX | (evalue << 3 ) | \ 3120 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \ 3121 } else /* forgive them Perl, for they have sinned */ \ 3122 PL_statusvalue_vms = evalue; \ 3123 } else { \ 3124 if (evalue == 0) \ 3125 PL_statusvalue_vms = SS$_NORMAL; \ 3126 else if (evalue <= 0xFF00) \ 3127 PL_statusvalue_vms = SS$_ABORT; \ 3128 else { /* forgive them Perl, for they have sinned */ \ 3129 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \ 3130 else PL_statusvalue_vms = vaxc$errno; \ 3131 /* And obviously used a VMS status value instead of UNIX */ \ 3132 PL_statusvalue = EVMSERR; \ 3133 } \ 3134 set_vaxc_errno(PL_statusvalue_vms); \ 3135 } \ 3136 } STMT_END 3137 3138 3139 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code 3140 * and sets the NATIVE error status based on it. This special case 3141 * is needed to maintain compatibility with past VMS behavior. 3142 * 3143 * In the default mode on VMS, this number is passed through as 3144 * both the NATIVE and UNIX status. Which makes it different 3145 * that the STATUS_UNIX_EXIT_SET. 3146 * 3147 * In the new POSIX EXIT mode, native status will be set so that the 3148 * actual exit code will can be retrieved by the calling program or 3149 * shell. 3150 * 3151 * A POSIX exit code is from 0 to 255. If the exit code is higher 3152 * than this, it needs to be assumed that it is a VMS exit code and 3153 * passed through. 3154 */ 3155 3156 # define STATUS_EXIT_SET(n) \ 3157 STMT_START { \ 3158 I32 evalue = (I32)n; \ 3159 PL_statusvalue = evalue; \ 3160 if (MY_POSIX_EXIT) \ 3161 if (evalue > 255) PL_statusvalue_vms = evalue; else { \ 3162 PL_statusvalue_vms = \ 3163 (C_FAC_POSIX | (evalue << 3 ) | \ 3164 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \ 3165 else \ 3166 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \ 3167 set_vaxc_errno(PL_statusvalue_vms); \ 3168 } STMT_END 3169 3170 3171 /* This macro forces a success status */ 3172 # define STATUS_ALL_SUCCESS \ 3173 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL) 3174 3175 /* This macro forces a failure status */ 3176 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \ 3177 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \ 3178 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT) 3179 3180 #elif defined(__amigaos4__) 3181 /* A somewhat experimental attempt to simulate posix return code values */ 3182 # define STATUS_NATIVE PL_statusvalue_posix 3183 # define STATUS_NATIVE_CHILD_SET(n) \ 3184 STMT_START { \ 3185 PL_statusvalue_posix = (n); \ 3186 if (PL_statusvalue_posix < 0) { \ 3187 PL_statusvalue = -1; \ 3188 } \ 3189 else { \ 3190 PL_statusvalue = n << 8; \ 3191 } \ 3192 } STMT_END 3193 # define STATUS_UNIX_SET(n) \ 3194 STMT_START { \ 3195 PL_statusvalue = (n); \ 3196 if (PL_statusvalue != -1) \ 3197 PL_statusvalue &= 0xFFFF; \ 3198 } STMT_END 3199 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n) 3200 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n) 3201 # define STATUS_CURRENT STATUS_UNIX 3202 # define STATUS_EXIT STATUS_UNIX 3203 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0) 3204 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1) 3205 3206 #else 3207 # define STATUS_NATIVE PL_statusvalue_posix 3208 # if defined(WCOREDUMP) 3209 # define STATUS_NATIVE_CHILD_SET(n) \ 3210 STMT_START { \ 3211 PL_statusvalue_posix = (n); \ 3212 if (PL_statusvalue_posix == -1) \ 3213 PL_statusvalue = -1; \ 3214 else { \ 3215 PL_statusvalue = \ 3216 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \ 3217 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \ 3218 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \ 3219 } \ 3220 } STMT_END 3221 # elif defined(WIFEXITED) 3222 # define STATUS_NATIVE_CHILD_SET(n) \ 3223 STMT_START { \ 3224 PL_statusvalue_posix = (n); \ 3225 if (PL_statusvalue_posix == -1) \ 3226 PL_statusvalue = -1; \ 3227 else { \ 3228 PL_statusvalue = \ 3229 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \ 3230 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \ 3231 } \ 3232 } STMT_END 3233 # else 3234 # define STATUS_NATIVE_CHILD_SET(n) \ 3235 STMT_START { \ 3236 PL_statusvalue_posix = (n); \ 3237 if (PL_statusvalue_posix == -1) \ 3238 PL_statusvalue = -1; \ 3239 else { \ 3240 PL_statusvalue = \ 3241 PL_statusvalue_posix & 0xFFFF; \ 3242 } \ 3243 } STMT_END 3244 # endif 3245 # define STATUS_UNIX_SET(n) \ 3246 STMT_START { \ 3247 PL_statusvalue = (n); \ 3248 if (PL_statusvalue != -1) \ 3249 PL_statusvalue &= 0xFFFF; \ 3250 } STMT_END 3251 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n) 3252 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n) 3253 # define STATUS_CURRENT STATUS_UNIX 3254 # define STATUS_EXIT STATUS_UNIX 3255 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0) 3256 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1) 3257 #endif 3258 3259 /* flags in PL_exit_flags for nature of exit() */ 3260 #define PERL_EXIT_EXPECTED 0x01 3261 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */ 3262 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */ 3263 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */ 3264 3265 #ifndef PERL_CORE 3266 /* format to use for version numbers in file/directory names */ 3267 /* XXX move to Configure? */ 3268 /* This was only ever used for the current version, and that can be done at 3269 compile time, as PERL_FS_VERSION, so should we just delete it? */ 3270 # ifndef PERL_FS_VER_FMT 3271 # define PERL_FS_VER_FMT "%d.%d.%d" 3272 # endif 3273 #endif 3274 3275 #ifndef PERL_FS_VERSION 3276 # define PERL_FS_VERSION PERL_VERSION_STRING 3277 #endif 3278 3279 /* This defines a way to flush all output buffers. This may be a 3280 * performance issue, so we allow people to disable it. Also, if 3281 * we are using stdio, there are broken implementations of fflush(NULL) 3282 * out there, Solaris being the most prominent. 3283 */ 3284 #ifndef PERL_FLUSHALL_FOR_CHILD 3285 # if defined(USE_PERLIO) || defined(FFLUSH_NULL) 3286 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL) 3287 # elif defined(FFLUSH_ALL) 3288 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all() 3289 # else 3290 # define PERL_FLUSHALL_FOR_CHILD NOOP 3291 # endif 3292 #endif 3293 3294 #ifndef PERL_WAIT_FOR_CHILDREN 3295 # define PERL_WAIT_FOR_CHILDREN NOOP 3296 #endif 3297 3298 /* the traditional thread-unsafe notion of "current interpreter". */ 3299 #ifndef PERL_SET_INTERP 3300 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i)) 3301 #endif 3302 3303 #ifndef PERL_GET_INTERP 3304 # define PERL_GET_INTERP (PL_curinterp) 3305 #endif 3306 3307 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX) 3308 # ifdef MULTIPLICITY 3309 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT) 3310 # endif 3311 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t) 3312 #endif 3313 3314 /* 3315 This replaces the previous %_ "hack" by the "%p" hacks. 3316 All that is required is that the perl source does not 3317 use "%-p" or "%-<number>p" or "%<number>p" formats. 3318 These formats will still work in perl code. 3319 See comments in sv.c for further details. 3320 3321 Robin Barker 2005-07-14 3322 3323 No longer use %1p for VDf = %vd. RMB 2007-10-19 3324 */ 3325 3326 #ifndef SVf_ 3327 # define SVf_(n) "-" STRINGIFY(n) "p" 3328 #endif 3329 3330 #ifndef SVf 3331 # define SVf "-p" 3332 #endif 3333 3334 #ifndef SVf32 3335 # define SVf32 SVf_(32) 3336 #endif 3337 3338 #ifndef SVf256 3339 # define SVf256 SVf_(256) 3340 #endif 3341 3342 #define SVfARG(p) ((void*)(p)) 3343 3344 #ifndef HEKf 3345 # define HEKf "2p" 3346 #endif 3347 3348 /* Not ideal, but we cannot easily include a number in an already-numeric 3349 * format sequence. */ 3350 #ifndef HEKf256 3351 # define HEKf256 "3p" 3352 #endif 3353 3354 #define HEKfARG(p) ((void*)(p)) 3355 3356 /* Takes three arguments: is_utf8, length, str */ 3357 #ifndef UTF8f 3358 # define UTF8f "d%" UVuf "%4p" 3359 #endif 3360 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p) 3361 3362 #define PNf UTF8f 3363 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn) 3364 3365 #ifdef PERL_CORE 3366 /* not used; but needed for backward compatibility with XS code? - RMB */ 3367 # undef UVf 3368 #elif !defined(UVf) 3369 # define UVf UVuf 3370 #endif 3371 3372 #ifdef HASATTRIBUTE_DEPRECATED 3373 # define __attribute__deprecated__ __attribute__((deprecated)) 3374 #endif 3375 #ifdef HASATTRIBUTE_FORMAT 3376 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z))) 3377 #endif 3378 #ifdef HASATTRIBUTE_MALLOC 3379 # define __attribute__malloc__ __attribute__((__malloc__)) 3380 #endif 3381 #ifdef HASATTRIBUTE_NONNULL 3382 # define __attribute__nonnull__(a) __attribute__((nonnull(a))) 3383 #endif 3384 #ifdef HASATTRIBUTE_NORETURN 3385 # define __attribute__noreturn__ __attribute__((noreturn)) 3386 #endif 3387 #ifdef HASATTRIBUTE_PURE 3388 # define __attribute__pure__ __attribute__((pure)) 3389 #endif 3390 #ifdef HASATTRIBUTE_UNUSED 3391 # define __attribute__unused__ __attribute__((unused)) 3392 #endif 3393 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT 3394 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result)) 3395 #endif 3396 3397 /* If we haven't defined the attributes yet, define them to blank. */ 3398 #ifndef __attribute__deprecated__ 3399 # define __attribute__deprecated__ 3400 #endif 3401 #ifndef __attribute__format__ 3402 # define __attribute__format__(x,y,z) 3403 #endif 3404 #ifndef __attribute__malloc__ 3405 # define __attribute__malloc__ 3406 #endif 3407 #ifndef __attribute__nonnull__ 3408 # define __attribute__nonnull__(a) 3409 #endif 3410 #ifndef __attribute__noreturn__ 3411 # define __attribute__noreturn__ 3412 #endif 3413 #ifndef __attribute__pure__ 3414 # define __attribute__pure__ 3415 #endif 3416 #ifndef __attribute__unused__ 3417 # define __attribute__unused__ 3418 #endif 3419 #ifndef __attribute__warn_unused_result__ 3420 # define __attribute__warn_unused_result__ 3421 #endif 3422 3423 #if !defined(DEBUGGING) && !defined(NDEBUG) 3424 # define NDEBUG 1 3425 #endif 3426 #include <assert.h> 3427 3428 /* For functions that are marked as __attribute__noreturn__, it's not 3429 appropriate to call return. In either case, include the lint directive. 3430 */ 3431 #ifdef HASATTRIBUTE_NORETURN 3432 # define NORETURN_FUNCTION_END NOT_REACHED; 3433 #else 3434 # define NORETURN_FUNCTION_END NOT_REACHED; return 0 3435 #endif 3436 3437 /* Some OS warn on NULL format to printf */ 3438 #ifdef PRINTF_FORMAT_NULL_OK 3439 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z) 3440 #else 3441 # define __attribute__format__null_ok__(x,y,z) 3442 #endif 3443 3444 #ifdef HAS_BUILTIN_EXPECT 3445 # define EXPECT(expr,val) __builtin_expect(expr,val) 3446 #else 3447 # define EXPECT(expr,val) (expr) 3448 #endif 3449 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE) 3450 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE) 3451 #ifdef HAS_BUILTIN_CHOOSE_EXPR 3452 /* placeholder */ 3453 #endif 3454 3455 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile 3456 time invariants. That is, their argument must be a constant expression that 3457 can be verified by the compiler. This expression can contain anything that's 3458 known to the compiler, e.g. #define constants, enums, or sizeof (...). If 3459 the expression evaluates to 0, compilation fails. 3460 Because they generate no runtime code (i.e. their use is "free"), they're 3461 always active, even under non-DEBUGGING builds. 3462 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at 3463 file scope (outside of any function). 3464 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a 3465 function. 3466 */ 3467 #if (defined(static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L)) && (!defined(__IBMC__) || __IBMC__ >= 1210) 3468 /* static_assert is a macro defined in <assert.h> in C11 or a compiler 3469 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no 3470 matter what <assert.h> says. 3471 */ 3472 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND) 3473 #else 3474 /* We use a bit-field instead of an array because gcc accepts 3475 'typedef char x[n]' where n is not a compile-time constant. 3476 We want to enforce constantness. 3477 */ 3478 # define STATIC_ASSERT_2(COND, SUFFIX) \ 3479 typedef struct { \ 3480 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \ 3481 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL 3482 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX) 3483 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__) 3484 #endif 3485 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an 3486 error (static_assert is a declaration, and only statements can have labels). 3487 */ 3488 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END 3489 3490 #ifndef __has_builtin 3491 # define __has_builtin(x) 0 /* not a clang style compiler */ 3492 #endif 3493 3494 /* ASSUME is like assert(), but it has a benefit in a release build. It is a 3495 hint to a compiler about a statement of fact in a function call free 3496 expression, which allows the compiler to generate better machine code. 3497 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means 3498 the control path is unreachable. In a for loop, ASSUME can be used to hint 3499 that a loop will run at least X times. ASSUME is based off MSVC's __assume 3500 intrinsic function, see its documents for more details. 3501 */ 3502 3503 #ifndef DEBUGGING 3504 # if __has_builtin(__builtin_unreachable) \ 3505 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */ 3506 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable()) 3507 # elif defined(_MSC_VER) 3508 # define ASSUME(x) __assume(x) 3509 # elif defined(__ARMCC_VERSION) /* untested */ 3510 # define ASSUME(x) __promise(x) 3511 # else 3512 /* a random compiler might define assert to its own special optimization token 3513 so pass it through to C lib as a last resort */ 3514 # define ASSUME(x) assert(x) 3515 # endif 3516 #else 3517 # define ASSUME(x) assert(x) 3518 #endif 3519 3520 #if defined(__sun) /* ASSUME() generates warnings on Solaris */ 3521 # define NOT_REACHED 3522 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \ 3523 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */ 3524 # define NOT_REACHED STMT_START { ASSUME(0); __builtin_unreachable(); } STMT_END 3525 #else 3526 # define NOT_REACHED ASSUME(0) 3527 #endif 3528 3529 /* Some unistd.h's give a prototype for pause() even though 3530 HAS_PAUSE ends up undefined. This causes the #define 3531 below to be rejected by the compiler. Sigh. 3532 */ 3533 #ifdef HAS_PAUSE 3534 #define Pause pause 3535 #else 3536 #define Pause() sleep((32767<<16)+32767) 3537 #endif 3538 3539 #ifndef IOCPARM_LEN 3540 # ifdef IOCPARM_MASK 3541 /* on BSDish systems we're safe */ 3542 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK) 3543 # elif defined(_IOC_SIZE) && defined(__GLIBC__) 3544 /* on Linux systems we're safe; except when we're not [perl #38223] */ 3545 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x)) 3546 # else 3547 /* otherwise guess at what's safe */ 3548 # define IOCPARM_LEN(x) 256 3549 # endif 3550 #endif 3551 3552 #if defined(__CYGWIN__) 3553 /* USEMYBINMODE 3554 * This symbol, if defined, indicates that the program should 3555 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure 3556 * that a file is in "binary" mode -- that is, that no translation 3557 * of bytes occurs on read or write operations. 3558 */ 3559 # define USEMYBINMODE /**/ 3560 # include <io.h> /* for setmode() prototype */ 3561 # define my_binmode(fp, iotype, mode) \ 3562 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1) 3563 #endif 3564 3565 #ifdef __CYGWIN__ 3566 void init_os_extras(void); 3567 #endif 3568 3569 #ifdef UNION_ANY_DEFINITION 3570 UNION_ANY_DEFINITION; 3571 #else 3572 union any { 3573 void* any_ptr; 3574 SV* any_sv; 3575 SV** any_svp; 3576 GV* any_gv; 3577 AV* any_av; 3578 HV* any_hv; 3579 OP* any_op; 3580 char* any_pv; 3581 char** any_pvp; 3582 I32 any_i32; 3583 U32 any_u32; 3584 IV any_iv; 3585 UV any_uv; 3586 long any_long; 3587 bool any_bool; 3588 void (*any_dptr) (void*); 3589 void (*any_dxptr) (pTHX_ void*); 3590 }; 3591 #endif 3592 3593 typedef I32 (*filter_t) (pTHX_ int, SV *, int); 3594 3595 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len) 3596 #define FILTER_DATA(idx) \ 3597 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL) 3598 #define FILTER_ISREADER(idx) \ 3599 (PL_parser && PL_parser->rsfp_filters \ 3600 && idx >= AvFILLp(PL_parser->rsfp_filters)) 3601 #define PERL_FILTER_EXISTS(i) \ 3602 (PL_parser && PL_parser->rsfp_filters \ 3603 && (i) <= av_tindex(PL_parser->rsfp_filters)) 3604 3605 #if defined(_AIX) && !defined(_AIX43) 3606 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE) 3607 /* We cannot include <crypt.h> to get the struct crypt_data 3608 * because of setkey prototype problems when threading */ 3609 typedef struct crypt_data { /* straight from /usr/include/crypt.h */ 3610 /* From OSF, Not needed in AIX 3611 char C[28], D[28]; 3612 */ 3613 char E[48]; 3614 char KS[16][48]; 3615 char block[66]; 3616 char iobuf[16]; 3617 } CRYPTD; 3618 #endif /* threading */ 3619 #endif /* AIX */ 3620 3621 #ifndef PERL_CALLCONV 3622 # ifdef __cplusplus 3623 # define PERL_CALLCONV extern "C" 3624 # else 3625 # define PERL_CALLCONV 3626 # endif 3627 #endif 3628 #ifndef PERL_CALLCONV_NO_RET 3629 # define PERL_CALLCONV_NO_RET PERL_CALLCONV 3630 #endif 3631 3632 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that 3633 dont have a noreturn as a declaration specifier 3634 */ 3635 #ifndef PERL_STATIC_NO_RET 3636 # define PERL_STATIC_NO_RET STATIC 3637 #endif 3638 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on 3639 builds that dont have a noreturn as a declaration specifier 3640 */ 3641 #ifndef PERL_STATIC_INLINE_NO_RET 3642 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE 3643 #endif 3644 3645 #if !defined(OS2) 3646 # include "iperlsys.h" 3647 #endif 3648 3649 #ifdef __LIBCATAMOUNT__ 3650 #undef HAS_PASSWD /* unixish.h but not unixish enough. */ 3651 #undef HAS_GROUP 3652 #define FAKE_BIT_BUCKET 3653 #endif 3654 3655 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0. 3656 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by 3657 * Configure, despite their names being similar to other defines like 3658 * USE_ITHREADS. Configure in fact knows nothing about the randomised 3659 * hashes. Therefore to enable/disable the hash randomisation defines 3660 * use the Configure -Accflags=... instead. */ 3661 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) 3662 # define USE_HASH_SEED 3663 #endif 3664 3665 #include "perly.h" 3666 3667 3668 /* macros to define bit-fields in structs. */ 3669 #ifndef PERL_BITFIELD8 3670 # define PERL_BITFIELD8 unsigned 3671 #endif 3672 #ifndef PERL_BITFIELD16 3673 # define PERL_BITFIELD16 unsigned 3674 #endif 3675 #ifndef PERL_BITFIELD32 3676 # define PERL_BITFIELD32 unsigned 3677 #endif 3678 3679 #include "sv.h" 3680 #include "regexp.h" 3681 #include "util.h" 3682 #include "form.h" 3683 #include "gv.h" 3684 #include "pad.h" 3685 #include "cv.h" 3686 #include "opnames.h" 3687 #include "op.h" 3688 #include "hv.h" 3689 #include "cop.h" 3690 #include "av.h" 3691 #include "mg.h" 3692 #include "scope.h" 3693 #include "warnings.h" 3694 #include "utf8.h" 3695 3696 /* these would be in doio.h if there was such a file */ 3697 #define my_stat() my_stat_flags(SV_GMAGIC) 3698 #define my_lstat() my_lstat_flags(SV_GMAGIC) 3699 3700 /* defined in sv.c, but also used in [ach]v.c */ 3701 #undef _XPV_HEAD 3702 #undef _XPVMG_HEAD 3703 #undef _XPVCV_COMMON 3704 3705 #include "parser.h" 3706 3707 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */ 3708 3709 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C) 3710 3711 /* These have to be predeclared, as they are used in proto.h which is #included 3712 * before their definitions in regcomp.h. */ 3713 3714 struct scan_data_t; 3715 typedef struct regnode_charclass regnode_charclass; 3716 3717 /* A hopefully less confusing name. The sub-classes are all Posix classes only 3718 * used under /l matching */ 3719 typedef struct regnode_charclass_posixl regnode_charclass_class; 3720 typedef struct regnode_charclass_posixl regnode_charclass_posixl; 3721 3722 typedef struct regnode_ssc regnode_ssc; 3723 typedef struct RExC_state_t RExC_state_t; 3724 struct _reg_trie_data; 3725 3726 #endif 3727 3728 struct ptr_tbl_ent { 3729 struct ptr_tbl_ent* next; 3730 const void* oldval; 3731 void* newval; 3732 }; 3733 3734 struct ptr_tbl { 3735 struct ptr_tbl_ent** tbl_ary; 3736 UV tbl_max; 3737 UV tbl_items; 3738 struct ptr_tbl_arena *tbl_arena; 3739 struct ptr_tbl_ent *tbl_arena_next; 3740 struct ptr_tbl_ent *tbl_arena_end; 3741 }; 3742 3743 #if defined(htonl) && !defined(HAS_HTONL) 3744 #define HAS_HTONL 3745 #endif 3746 #if defined(htons) && !defined(HAS_HTONS) 3747 #define HAS_HTONS 3748 #endif 3749 #if defined(ntohl) && !defined(HAS_NTOHL) 3750 #define HAS_NTOHL 3751 #endif 3752 #if defined(ntohs) && !defined(HAS_NTOHS) 3753 #define HAS_NTOHS 3754 #endif 3755 #ifndef HAS_HTONL 3756 #define HAS_HTONS 3757 #define HAS_HTONL 3758 #define HAS_NTOHS 3759 #define HAS_NTOHL 3760 # if (BYTEORDER & 0xffff) == 0x4321 3761 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to 3762 re-order their values. However, to behave identically to the alternative 3763 implementations, they should truncate to the correct size. */ 3764 # define ntohl(x) ((x)&0xFFFFFFFF) 3765 # define htonl(x) ntohl(x) 3766 # define ntohs(x) ((x)&0xFFFF) 3767 # define htons(x) ntohs(x) 3768 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 3769 3770 /* Note that we can't straight out declare our own htonl and htons because 3771 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl, 3772 to avoid the overhead of initialising the socket subsystem, but the headers 3773 that *declare* the various functions are still seen. If we declare our own 3774 htonl etc they will clash with the declarations in the Win32 headers. */ 3775 3776 PERL_STATIC_INLINE U32 3777 my_swap32(const U32 x) { 3778 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF) 3779 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8); 3780 } 3781 3782 PERL_STATIC_INLINE U16 3783 my_swap16(const U16 x) { 3784 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF); 3785 } 3786 3787 # define htonl(x) my_swap32(x) 3788 # define ntohl(x) my_swap32(x) 3789 # define ntohs(x) my_swap16(x) 3790 # define htons(x) my_swap16(x) 3791 # else 3792 # error "Unsupported byteorder" 3793 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of 3794 the error message. Please check the value of the macro BYTEORDER, as defined 3795 in config.h. The values of BYTEORDER we expect are 3796 3797 big endian little endian 3798 32 bit 0x4321 0x1234 3799 64 bit 0x87654321 0x12345678 3800 3801 If you have a system with a different byte order, please see 3802 pod/perlhack.pod for how to submit a patch to add supporting code. 3803 */ 3804 # endif 3805 #endif 3806 3807 /* 3808 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. 3809 * -DWS 3810 */ 3811 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 3812 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to 3813 re-order their values. However, to behave identically to the alternative 3814 implementations, they should truncate to the correct size. */ 3815 # define vtohl(x) ((x)&0xFFFFFFFF) 3816 # define vtohs(x) ((x)&0xFFFF) 3817 # define htovl(x) vtohl(x) 3818 # define htovs(x) vtohs(x) 3819 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 3820 # define vtohl(x) ((((x)&0xFF)<<24) \ 3821 +(((x)>>24)&0xFF) \ 3822 +(((x)&0x0000FF00)<<8) \ 3823 +(((x)&0x00FF0000)>>8) ) 3824 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF)) 3825 # define htovl(x) vtohl(x) 3826 # define htovs(x) vtohs(x) 3827 #else 3828 # error "Unsupported byteorder" 3829 /* If you have need for current perl on PDP-11 or similar, and can help test 3830 that blead keeps working on a mixed-endian system, then see 3831 pod/perlhack.pod for how to submit patches to things working again. */ 3832 #endif 3833 3834 /* *MAX Plus 1. A floating point value. 3835 Hopefully expressed in a way that dodgy floating point can't mess up. 3836 >> 2 rather than 1, so that value is safely less than I32_MAX after 1 3837 is added to it 3838 May find that some broken compiler will want the value cast to I32. 3839 [after the shift, as signed >> may not be as secure as unsigned >>] 3840 */ 3841 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1))) 3842 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2))) 3843 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or 3844 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV) 3845 may be greater than sizeof(IV), so don't assume that half max UV is max IV. 3846 */ 3847 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2))) 3848 3849 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2))) 3850 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1))) 3851 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2))) 3852 3853 /* This may look like unnecessary jumping through hoops, but converting 3854 out of range floating point values to integers *is* undefined behaviour, 3855 and it is starting to bite. 3856 */ 3857 #ifndef CAST_INLINE 3858 #define I_32(what) (cast_i32((NV)(what))) 3859 #define U_32(what) (cast_ulong((NV)(what))) 3860 #define I_V(what) (cast_iv((NV)(what))) 3861 #define U_V(what) (cast_uv((NV)(what))) 3862 #else 3863 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \ 3864 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \ 3865 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */))) 3866 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \ 3867 : ((n) < U32_MAX_P1 ? (U32) (n) \ 3868 : ((n) > 0 ? U32_MAX : 0 /* NaN */))) 3869 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \ 3870 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \ 3871 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */))) 3872 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \ 3873 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \ 3874 : ((n) > 0 ? UV_MAX : 0 /* NaN */))) 3875 #endif 3876 3877 #define U_S(what) ((U16)U_32(what)) 3878 #define U_I(what) ((unsigned int)U_32(what)) 3879 #define U_L(what) U_32(what) 3880 3881 #ifdef HAS_SIGNBIT 3882 # ifndef Perl_signbit 3883 # define Perl_signbit signbit 3884 # endif 3885 #endif 3886 3887 /* These do not care about the fractional part, only about the range. */ 3888 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX) 3889 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX) 3890 3891 /* Used with UV/IV arguments: */ 3892 /* XXXX: need to speed it up */ 3893 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv)) 3894 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv)) 3895 3896 #ifndef MAXSYSFD 3897 # define MAXSYSFD 2 3898 #endif 3899 3900 #ifndef __cplusplus 3901 #if !(defined(WIN32) || defined(UNDER_CE) || defined(SYMBIAN)) 3902 Uid_t getuid (void); 3903 Uid_t geteuid (void); 3904 Gid_t getgid (void); 3905 Gid_t getegid (void); 3906 #endif 3907 #endif 3908 3909 #ifndef Perl_debug_log 3910 # define Perl_debug_log PerlIO_stderr() 3911 #endif 3912 3913 #ifndef Perl_error_log 3914 # define Perl_error_log (PL_stderrgv \ 3915 && isGV(PL_stderrgv) \ 3916 && GvIOp(PL_stderrgv) \ 3917 && IoOFP(GvIOp(PL_stderrgv)) \ 3918 ? IoOFP(GvIOp(PL_stderrgv)) \ 3919 : PerlIO_stderr()) 3920 #endif 3921 3922 3923 #define DEBUG_p_FLAG 0x00000001 /* 1 */ 3924 #define DEBUG_s_FLAG 0x00000002 /* 2 */ 3925 #define DEBUG_l_FLAG 0x00000004 /* 4 */ 3926 #define DEBUG_t_FLAG 0x00000008 /* 8 */ 3927 #define DEBUG_o_FLAG 0x00000010 /* 16 */ 3928 #define DEBUG_c_FLAG 0x00000020 /* 32 */ 3929 #define DEBUG_P_FLAG 0x00000040 /* 64 */ 3930 #define DEBUG_m_FLAG 0x00000080 /* 128 */ 3931 #define DEBUG_f_FLAG 0x00000100 /* 256 */ 3932 #define DEBUG_r_FLAG 0x00000200 /* 512 */ 3933 #define DEBUG_x_FLAG 0x00000400 /* 1024 */ 3934 #define DEBUG_u_FLAG 0x00000800 /* 2048 */ 3935 /* U is reserved for Unofficial, exploratory hacking */ 3936 #define DEBUG_U_FLAG 0x00001000 /* 4096 */ 3937 /* spare 8192 */ 3938 #define DEBUG_X_FLAG 0x00004000 /* 16384 */ 3939 #define DEBUG_D_FLAG 0x00008000 /* 32768 */ 3940 #define DEBUG_S_FLAG 0x00010000 /* 65536 */ 3941 #define DEBUG_T_FLAG 0x00020000 /* 131072 */ 3942 #define DEBUG_R_FLAG 0x00040000 /* 262144 */ 3943 #define DEBUG_J_FLAG 0x00080000 /* 524288 */ 3944 #define DEBUG_v_FLAG 0x00100000 /*1048576 */ 3945 #define DEBUG_C_FLAG 0x00200000 /*2097152 */ 3946 #define DEBUG_A_FLAG 0x00400000 /*4194304 */ 3947 #define DEBUG_q_FLAG 0x00800000 /*8388608 */ 3948 #define DEBUG_M_FLAG 0x01000000 /*16777216*/ 3949 #define DEBUG_B_FLAG 0x02000000 /*33554432*/ 3950 #define DEBUG_L_FLAG 0x04000000 /*67108864*/ 3951 #define DEBUG_i_FLAG 0x08000000 /*134217728*/ 3952 #define DEBUG_MASK 0x0FFFEFFF /* mask of all the standard flags */ 3953 3954 #define DEBUG_DB_RECURSE_FLAG 0x40000000 3955 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */ 3956 3957 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG) 3958 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG) 3959 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG) 3960 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG) 3961 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG) 3962 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG) 3963 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG) 3964 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG) 3965 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG) 3966 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG) 3967 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG) 3968 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG) 3969 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG) 3970 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG) 3971 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG) 3972 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG) 3973 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG) 3974 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG) 3975 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG) 3976 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG) 3977 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG) 3978 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG) 3979 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG) 3980 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG) 3981 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG) 3982 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG) 3983 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG) 3984 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_) 3985 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_) 3986 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_) 3987 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_) 3988 3989 #ifdef DEBUGGING 3990 3991 # define DEBUG_p_TEST DEBUG_p_TEST_ 3992 # define DEBUG_s_TEST DEBUG_s_TEST_ 3993 # define DEBUG_l_TEST DEBUG_l_TEST_ 3994 # define DEBUG_t_TEST DEBUG_t_TEST_ 3995 # define DEBUG_o_TEST DEBUG_o_TEST_ 3996 # define DEBUG_c_TEST DEBUG_c_TEST_ 3997 # define DEBUG_P_TEST DEBUG_P_TEST_ 3998 # define DEBUG_m_TEST DEBUG_m_TEST_ 3999 # define DEBUG_f_TEST DEBUG_f_TEST_ 4000 # define DEBUG_r_TEST DEBUG_r_TEST_ 4001 # define DEBUG_x_TEST DEBUG_x_TEST_ 4002 # define DEBUG_u_TEST DEBUG_u_TEST_ 4003 # define DEBUG_U_TEST DEBUG_U_TEST_ 4004 # define DEBUG_X_TEST DEBUG_X_TEST_ 4005 # define DEBUG_D_TEST DEBUG_D_TEST_ 4006 # define DEBUG_S_TEST DEBUG_S_TEST_ 4007 # define DEBUG_T_TEST DEBUG_T_TEST_ 4008 # define DEBUG_R_TEST DEBUG_R_TEST_ 4009 # define DEBUG_J_TEST DEBUG_J_TEST_ 4010 # define DEBUG_v_TEST DEBUG_v_TEST_ 4011 # define DEBUG_C_TEST DEBUG_C_TEST_ 4012 # define DEBUG_A_TEST DEBUG_A_TEST_ 4013 # define DEBUG_q_TEST DEBUG_q_TEST_ 4014 # define DEBUG_M_TEST DEBUG_M_TEST_ 4015 # define DEBUG_B_TEST DEBUG_B_TEST_ 4016 # define DEBUG_L_TEST DEBUG_L_TEST_ 4017 # define DEBUG_i_TEST DEBUG_i_TEST_ 4018 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_ 4019 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_ 4020 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_ 4021 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_ 4022 4023 # define PERL_DEB(a) a 4024 # define PERL_DEB2(a,b) a 4025 # define PERL_DEBUG(a) if (PL_debug) a 4026 # define DEBUG_p(a) if (DEBUG_p_TEST) a 4027 # define DEBUG_s(a) if (DEBUG_s_TEST) a 4028 # define DEBUG_l(a) if (DEBUG_l_TEST) a 4029 # define DEBUG_t(a) if (DEBUG_t_TEST) a 4030 # define DEBUG_o(a) if (DEBUG_o_TEST) a 4031 # define DEBUG_c(a) if (DEBUG_c_TEST) a 4032 # define DEBUG_P(a) if (DEBUG_P_TEST) a 4033 4034 /* Temporarily turn off memory debugging in case the a 4035 * does memory allocation, either directly or indirectly. */ 4036 # define DEBUG_m(a) \ 4037 STMT_START { \ 4038 if (PERL_GET_INTERP) { \ 4039 dTHX; \ 4040 if (DEBUG_m_TEST) { \ 4041 PL_debug &= ~DEBUG_m_FLAG; \ 4042 a; \ 4043 PL_debug |= DEBUG_m_FLAG; \ 4044 } \ 4045 } \ 4046 } STMT_END 4047 4048 # define DEBUG__(t, a) \ 4049 STMT_START { \ 4050 if (t) STMT_START {a;} STMT_END; \ 4051 } STMT_END 4052 4053 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a) 4054 4055 # ifndef PERL_EXT_RE_BUILD 4056 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a) 4057 # else 4058 # define DEBUG_r(a) STMT_START {a;} STMT_END 4059 # endif /* PERL_EXT_RE_BUILD */ 4060 4061 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a) 4062 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a) 4063 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a) 4064 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a) 4065 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a) 4066 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a) 4067 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a) 4068 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a) 4069 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a) 4070 4071 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a) 4072 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a) 4073 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a) 4074 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a) 4075 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a) 4076 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a) 4077 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a) 4078 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a) 4079 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a) 4080 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a) 4081 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a) 4082 4083 #else /* ! DEBUGGING below */ 4084 4085 # define DEBUG_p_TEST (0) 4086 # define DEBUG_s_TEST (0) 4087 # define DEBUG_l_TEST (0) 4088 # define DEBUG_t_TEST (0) 4089 # define DEBUG_o_TEST (0) 4090 # define DEBUG_c_TEST (0) 4091 # define DEBUG_P_TEST (0) 4092 # define DEBUG_m_TEST (0) 4093 # define DEBUG_f_TEST (0) 4094 # define DEBUG_r_TEST (0) 4095 # define DEBUG_x_TEST (0) 4096 # define DEBUG_u_TEST (0) 4097 # define DEBUG_U_TEST (0) 4098 # define DEBUG_X_TEST (0) 4099 # define DEBUG_D_TEST (0) 4100 # define DEBUG_S_TEST (0) 4101 # define DEBUG_T_TEST (0) 4102 # define DEBUG_R_TEST (0) 4103 # define DEBUG_J_TEST (0) 4104 # define DEBUG_v_TEST (0) 4105 # define DEBUG_C_TEST (0) 4106 # define DEBUG_A_TEST (0) 4107 # define DEBUG_q_TEST (0) 4108 # define DEBUG_M_TEST (0) 4109 # define DEBUG_B_TEST (0) 4110 # define DEBUG_L_TEST (0) 4111 # define DEBUG_i_TEST (0) 4112 # define DEBUG_Xv_TEST (0) 4113 # define DEBUG_Uv_TEST (0) 4114 # define DEBUG_Pv_TEST (0) 4115 # define DEBUG_Lv_TEST (0) 4116 4117 # define PERL_DEB(a) 4118 # define PERL_DEB2(a,b) b 4119 # define PERL_DEBUG(a) 4120 # define DEBUG_p(a) 4121 # define DEBUG_s(a) 4122 # define DEBUG_l(a) 4123 # define DEBUG_t(a) 4124 # define DEBUG_o(a) 4125 # define DEBUG_c(a) 4126 # define DEBUG_P(a) 4127 # define DEBUG_m(a) 4128 # define DEBUG_f(a) 4129 # define DEBUG_r(a) 4130 # define DEBUG_x(a) 4131 # define DEBUG_u(a) 4132 # define DEBUG_U(a) 4133 # define DEBUG_X(a) 4134 # define DEBUG_D(a) 4135 # define DEBUG_S(a) 4136 # define DEBUG_T(a) 4137 # define DEBUG_R(a) 4138 # define DEBUG_v(a) 4139 # define DEBUG_C(a) 4140 # define DEBUG_A(a) 4141 # define DEBUG_q(a) 4142 # define DEBUG_M(a) 4143 # define DEBUG_B(a) 4144 # define DEBUG_L(a) 4145 # define DEBUG_i(a) 4146 # define DEBUG_Xv(a) 4147 # define DEBUG_Uv(a) 4148 # define DEBUG_Pv(a) 4149 # define DEBUG_Lv(a) 4150 #endif /* DEBUGGING */ 4151 4152 4153 #define DEBUG_SCOPE(where) \ 4154 DEBUG_l( \ 4155 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \ 4156 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \ 4157 __FILE__, __LINE__)); 4158 4159 /* Keep the old croak based assert for those who want it, and as a fallback if 4160 the platform is so heretically non-ANSI that it can't assert. */ 4161 4162 #define Perl_assert(what) PERL_DEB2( \ 4163 ((what) ? ((void) 0) : \ 4164 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \ 4165 "\", line %d", STRINGIFY(what), __LINE__), \ 4166 (void) 0)), ((void)0)) 4167 4168 /* assert() gets defined if DEBUGGING. 4169 * If no DEBUGGING, the <assert.h> has not been included. */ 4170 #ifndef assert 4171 # define assert(what) Perl_assert(what) 4172 #endif 4173 #ifdef DEBUGGING 4174 # define assert_(what) assert(what), 4175 #else 4176 # define assert_(what) 4177 #endif 4178 4179 struct ufuncs { 4180 I32 (*uf_val)(pTHX_ IV, SV*); 4181 I32 (*uf_set)(pTHX_ IV, SV*); 4182 IV uf_index; 4183 }; 4184 4185 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context. 4186 * XS code wanting to be backward compatible can do something 4187 * like the following: 4188 4189 #ifndef PERL_MG_UFUNC 4190 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv) 4191 #endif 4192 4193 static PERL_MG_UFUNC(foo_get, index, val) 4194 { 4195 sv_setsv(val, ...); 4196 return TRUE; 4197 } 4198 4199 -- Doug MacEachern 4200 4201 */ 4202 4203 #ifndef PERL_MG_UFUNC 4204 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv) 4205 #endif 4206 4207 #include <math.h> 4208 #ifdef __VMS 4209 /* isfinite and others are here rather than in math.h as C99 stipulates */ 4210 # include <fp.h> 4211 #endif 4212 4213 #ifndef __cplusplus 4214 # if !defined(WIN32) && !defined(VMS) 4215 #ifndef crypt 4216 char *crypt (const char*, const char*); 4217 #endif 4218 # endif /* !WIN32 */ 4219 # ifndef WIN32 4220 # ifndef getlogin 4221 char *getlogin (void); 4222 # endif 4223 # endif /* !WIN32 */ 4224 #endif /* !__cplusplus */ 4225 4226 /* Fixme on VMS. This needs to be a run-time, not build time options */ 4227 /* Also rename() is affected by this */ 4228 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */ 4229 #define UNLINK unlnk 4230 I32 unlnk (pTHX_ const char*); 4231 #else 4232 #define UNLINK PerlLIO_unlink 4233 #endif 4234 4235 /* some versions of glibc are missing the setresuid() proto */ 4236 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO) 4237 int setresuid(uid_t ruid, uid_t euid, uid_t suid); 4238 #endif 4239 /* some versions of glibc are missing the setresgid() proto */ 4240 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO) 4241 int setresgid(gid_t rgid, gid_t egid, gid_t sgid); 4242 #endif 4243 4244 #ifndef HAS_SETREUID 4245 # ifdef HAS_SETRESUID 4246 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1) 4247 # define HAS_SETREUID 4248 # endif 4249 #endif 4250 #ifndef HAS_SETREGID 4251 # ifdef HAS_SETRESGID 4252 # define setregid(r,e) setresgid(r,e,(Gid_t)-1) 4253 # define HAS_SETREGID 4254 # endif 4255 #endif 4256 4257 /* Sighandler_t defined in iperlsys.h */ 4258 4259 #ifdef HAS_SIGACTION 4260 typedef struct sigaction Sigsave_t; 4261 #else 4262 typedef Sighandler_t Sigsave_t; 4263 #endif 4264 4265 #define SCAN_DEF 0 4266 #define SCAN_TR 1 4267 #define SCAN_REPL 2 4268 4269 #ifdef DEBUGGING 4270 # ifndef register 4271 # define register 4272 # endif 4273 # define RUNOPS_DEFAULT Perl_runops_debug 4274 #else 4275 # define RUNOPS_DEFAULT Perl_runops_standard 4276 #endif 4277 4278 #if defined(USE_PERLIO) 4279 EXTERN_C void PerlIO_teardown(void); 4280 # ifdef USE_ITHREADS 4281 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex) 4282 # define PERLIO_TERM \ 4283 STMT_START { \ 4284 PerlIO_teardown(); \ 4285 MUTEX_DESTROY(&PL_perlio_mutex);\ 4286 } STMT_END 4287 # else 4288 # define PERLIO_INIT 4289 # define PERLIO_TERM PerlIO_teardown() 4290 # endif 4291 #else 4292 # define PERLIO_INIT 4293 # define PERLIO_TERM 4294 #endif 4295 4296 #ifdef MYMALLOC 4297 # ifdef MUTEX_INIT_CALLS_MALLOC 4298 # define MALLOC_INIT \ 4299 STMT_START { \ 4300 PL_malloc_mutex = NULL; \ 4301 MUTEX_INIT(&PL_malloc_mutex); \ 4302 } STMT_END 4303 # define MALLOC_TERM \ 4304 STMT_START { \ 4305 perl_mutex tmp = PL_malloc_mutex; \ 4306 PL_malloc_mutex = NULL; \ 4307 MUTEX_DESTROY(&tmp); \ 4308 } STMT_END 4309 # else 4310 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex) 4311 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex) 4312 # endif 4313 #else 4314 # define MALLOC_INIT 4315 # define MALLOC_TERM 4316 #endif 4317 4318 #if defined(PERL_IMPLICIT_CONTEXT) 4319 4320 struct perl_memory_debug_header; 4321 struct perl_memory_debug_header { 4322 tTHX interpreter; 4323 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW) 4324 MEM_SIZE size; 4325 # endif 4326 struct perl_memory_debug_header *prev; 4327 struct perl_memory_debug_header *next; 4328 # ifdef PERL_DEBUG_READONLY_COW 4329 bool readonly; 4330 # endif 4331 }; 4332 4333 #elif defined(PERL_DEBUG_READONLY_COW) 4334 4335 struct perl_memory_debug_header; 4336 struct perl_memory_debug_header { 4337 MEM_SIZE size; 4338 }; 4339 4340 #endif 4341 4342 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW) 4343 4344 # define PERL_MEMORY_DEBUG_HEADER_SIZE \ 4345 (sizeof(struct perl_memory_debug_header) + \ 4346 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \ 4347 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES) 4348 4349 #else 4350 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0 4351 #endif 4352 4353 #ifdef PERL_TRACK_MEMPOOL 4354 # ifdef PERL_DEBUG_READONLY_COW 4355 # define INIT_TRACK_MEMPOOL(header, interp) \ 4356 STMT_START { \ 4357 (header).interpreter = (interp); \ 4358 (header).prev = (header).next = &(header); \ 4359 (header).readonly = 0; \ 4360 } STMT_END 4361 # else 4362 # define INIT_TRACK_MEMPOOL(header, interp) \ 4363 STMT_START { \ 4364 (header).interpreter = (interp); \ 4365 (header).prev = (header).next = &(header); \ 4366 } STMT_END 4367 # endif 4368 # else 4369 # define INIT_TRACK_MEMPOOL(header, interp) 4370 #endif 4371 4372 #ifdef I_MALLOCMALLOC 4373 /* Needed for malloc_size(), malloc_good_size() on some systems */ 4374 # include <malloc/malloc.h> 4375 #endif 4376 4377 #ifdef MYMALLOC 4378 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where) 4379 #else 4380 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW) 4381 # ifdef PERL_TRACK_MEMPOOL 4382 # define Perl_safesysmalloc_size(where) \ 4383 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE) 4384 # else 4385 # define Perl_safesysmalloc_size(where) malloc_size(where) 4386 # endif 4387 # endif 4388 # ifdef HAS_MALLOC_GOOD_SIZE 4389 # ifdef PERL_TRACK_MEMPOOL 4390 # define Perl_malloc_good_size(how_much) \ 4391 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE) 4392 # else 4393 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much) 4394 # endif 4395 # else 4396 /* Having this as the identity operation makes some code simpler. */ 4397 # define Perl_malloc_good_size(how_much) (how_much) 4398 # endif 4399 #endif 4400 4401 typedef int (*runops_proc_t)(pTHX); 4402 typedef void (*share_proc_t) (pTHX_ SV *sv); 4403 typedef int (*thrhook_proc_t) (pTHX); 4404 typedef OP* (*PPADDR_t[]) (pTHX); 4405 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv); 4406 typedef void (*despatch_signals_proc_t) (pTHX); 4407 4408 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE) 4409 # include <crt_externs.h> /* for the env array */ 4410 # define environ (*_NSGetEnviron()) 4411 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ) 4412 /* VMS and some other platforms don't use the environ array */ 4413 EXTERN_C char **environ; /* environment variables supplied via exec */ 4414 #endif 4415 4416 #define PERL_PATCHLEVEL_H_IMPLICIT 4417 #include "patchlevel.h" 4418 #undef PERL_PATCHLEVEL_H_IMPLICIT 4419 4420 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \ 4421 STRINGIFY(PERL_VERSION) "." \ 4422 STRINGIFY(PERL_SUBVERSION) 4423 4424 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \ 4425 STRINGIFY(PERL_API_VERSION) "." \ 4426 STRINGIFY(PERL_API_SUBVERSION) 4427 4428 START_EXTERN_C 4429 4430 /* handy constants */ 4431 EXTCONST char PL_warn_uninit[] 4432 INIT("Use of uninitialized value%s%s%s"); 4433 EXTCONST char PL_warn_uninit_sv[] 4434 INIT("Use of uninitialized value%" SVf "%s%s"); 4435 EXTCONST char PL_warn_nosemi[] 4436 INIT("Semicolon seems to be missing"); 4437 EXTCONST char PL_warn_reserved[] 4438 INIT("Unquoted string \"%s\" may clash with future reserved word"); 4439 EXTCONST char PL_warn_nl[] 4440 INIT("Unsuccessful %s on filename containing newline"); 4441 EXTCONST char PL_no_wrongref[] 4442 INIT("Can't use %s ref as %s ref"); 4443 /* The core no longer needs this here. If you require the string constant, 4444 please inline a copy into your own code. */ 4445 EXTCONST char PL_no_symref[] __attribute__deprecated__ 4446 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use"); 4447 EXTCONST char PL_no_symref_sv[] 4448 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"); 4449 4450 EXTCONST char PL_no_usym[] 4451 INIT("Can't use an undefined value as %s reference"); 4452 EXTCONST char PL_no_aelem[] 4453 INIT("Modification of non-creatable array value attempted, subscript %d"); 4454 EXTCONST char PL_no_helem_sv[] 4455 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\""); 4456 EXTCONST char PL_no_modify[] 4457 INIT("Modification of a read-only value attempted"); 4458 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")] 4459 INIT("Out of memory!\n"); 4460 EXTCONST char PL_no_security[] 4461 INIT("Insecure dependency in %s%s"); 4462 EXTCONST char PL_no_sock_func[] 4463 INIT("Unsupported socket function \"%s\" called"); 4464 EXTCONST char PL_no_dir_func[] 4465 INIT("Unsupported directory function \"%s\" called"); 4466 EXTCONST char PL_no_func[] 4467 INIT("The %s function is unimplemented"); 4468 EXTCONST char PL_no_myglob[] 4469 INIT("\"%s\" %se %s can't be in a package"); 4470 EXTCONST char PL_no_localize_ref[] 4471 INIT("Can't localize through a reference"); 4472 EXTCONST char PL_memory_wrap[] 4473 INIT("panic: memory wrap"); 4474 4475 EXTCONST char PL_Yes[] 4476 INIT("1"); 4477 EXTCONST char PL_No[] 4478 INIT(""); 4479 EXTCONST char PL_Zero[] 4480 INIT("0"); 4481 EXTCONST char PL_hexdigit[] 4482 INIT("0123456789abcdef0123456789ABCDEF"); 4483 4484 EXTCONST STRLEN PL_WARN_ALL 4485 INIT(0); 4486 EXTCONST STRLEN PL_WARN_NONE 4487 INIT(0); 4488 4489 /* This is constant on most architectures, a global on OS/2 */ 4490 #ifndef OS2 4491 EXTCONST char PL_sh_path[] 4492 INIT(SH_PATH); /* full path of shell */ 4493 #endif 4494 4495 #ifdef CSH 4496 EXTCONST char PL_cshname[] 4497 INIT(CSH); 4498 # define PL_cshlen (sizeof(CSH "") - 1) 4499 #endif 4500 4501 /* These are baked at compile time into any shared perl library. 4502 In future releases this will allow us in main() to sanity test the 4503 library we're linking against. */ 4504 4505 EXTCONST U8 PL_revision 4506 INIT(PERL_REVISION); 4507 EXTCONST U8 PL_version 4508 INIT(PERL_VERSION); 4509 EXTCONST U8 PL_subversion 4510 INIT(PERL_SUBVERSION); 4511 4512 EXTCONST char PL_uuemap[65] 4513 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"); 4514 4515 /* a special string address whose value is "isa", but which perl knows 4516 * to treat as if it were really "DOES" when printing the method name in 4517 * the "Can't call method '%s'" error message */ 4518 EXTCONST char PL_isa_DOES[] 4519 INIT("isa"); 4520 4521 #ifdef DOINIT 4522 EXTCONST char PL_uudmap[256] = 4523 # ifdef PERL_MICRO 4524 # include "uuudmap.h" 4525 # else 4526 # include "uudmap.h" 4527 # endif 4528 ; 4529 EXTCONST char PL_bitcount[256] = 4530 # ifdef PERL_MICRO 4531 # include "ubitcount.h" 4532 #else 4533 # include "bitcount.h" 4534 # endif 4535 ; 4536 EXTCONST char* const PL_sig_name[] = { SIG_NAME }; 4537 EXTCONST int PL_sig_num[] = { SIG_NUM }; 4538 #else 4539 EXTCONST char PL_uudmap[256]; 4540 EXTCONST char PL_bitcount[256]; 4541 EXTCONST char* const PL_sig_name[]; 4542 EXTCONST int PL_sig_num[]; 4543 #endif 4544 4545 /* fast conversion and case folding tables. The folding tables complement the 4546 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated 4547 * folds such as outside the range or to multiple characters. */ 4548 4549 #ifdef DOINIT 4550 #ifndef EBCDIC 4551 4552 /* The EBCDIC fold table depends on the code page, and hence is found in 4553 * utfebcdic.h */ 4554 4555 EXTCONST unsigned char PL_fold[] = { 4556 0, 1, 2, 3, 4, 5, 6, 7, 4557 8, 9, 10, 11, 12, 13, 14, 15, 4558 16, 17, 18, 19, 20, 21, 22, 23, 4559 24, 25, 26, 27, 28, 29, 30, 31, 4560 32, 33, 34, 35, 36, 37, 38, 39, 4561 40, 41, 42, 43, 44, 45, 46, 47, 4562 48, 49, 50, 51, 52, 53, 54, 55, 4563 56, 57, 58, 59, 60, 61, 62, 63, 4564 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4565 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4566 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4567 'x', 'y', 'z', 91, 92, 93, 94, 95, 4568 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4569 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4570 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4571 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4572 128, 129, 130, 131, 132, 133, 134, 135, 4573 136, 137, 138, 139, 140, 141, 142, 143, 4574 144, 145, 146, 147, 148, 149, 150, 151, 4575 152, 153, 154, 155, 156, 157, 158, 159, 4576 160, 161, 162, 163, 164, 165, 166, 167, 4577 168, 169, 170, 171, 172, 173, 174, 175, 4578 176, 177, 178, 179, 180, 181, 182, 183, 4579 184, 185, 186, 187, 188, 189, 190, 191, 4580 192, 193, 194, 195, 196, 197, 198, 199, 4581 200, 201, 202, 203, 204, 205, 206, 207, 4582 208, 209, 210, 211, 212, 213, 214, 215, 4583 216, 217, 218, 219, 220, 221, 222, 223, 4584 224, 225, 226, 227, 228, 229, 230, 231, 4585 232, 233, 234, 235, 236, 237, 238, 239, 4586 240, 241, 242, 243, 244, 245, 246, 247, 4587 248, 249, 250, 251, 252, 253, 254, 255 4588 }; 4589 EXTCONST unsigned char PL_fold_latin1[] = { 4590 /* Full latin1 complement folding, except for three problematic code points: 4591 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their 4592 * fold complements outside the Latin1 range, so can't match something 4593 * that isn't in utf8. 4594 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss', 4595 * not one, so can't be represented in this table. 4596 * 4597 * All have to be specially handled */ 4598 0, 1, 2, 3, 4, 5, 6, 7, 4599 8, 9, 10, 11, 12, 13, 14, 15, 4600 16, 17, 18, 19, 20, 21, 22, 23, 4601 24, 25, 26, 27, 28, 29, 30, 31, 4602 32, 33, 34, 35, 36, 37, 38, 39, 4603 40, 41, 42, 43, 44, 45, 46, 47, 4604 48, 49, 50, 51, 52, 53, 54, 55, 4605 56, 57, 58, 59, 60, 61, 62, 63, 4606 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4607 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4608 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4609 'x', 'y', 'z', 91, 92, 93, 94, 95, 4610 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4611 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4612 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4613 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4614 128, 129, 130, 131, 132, 133, 134, 135, 4615 136, 137, 138, 139, 140, 141, 142, 143, 4616 144, 145, 146, 147, 148, 149, 150, 151, 4617 152, 153, 154, 155, 156, 157, 158, 159, 4618 160, 161, 162, 163, 164, 165, 166, 167, 4619 168, 169, 170, 171, 172, 173, 174, 175, 4620 176, 177, 178, 179, 180, 181 /*micro */, 182, 183, 4621 184, 185, 186, 187, 188, 189, 190, 191, 4622 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32, 4623 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32, 4624 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215, 4625 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */, 4626 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32, 4627 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32, 4628 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247, 4629 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 4630 255 /* y with diaeresis */ 4631 }; 4632 4633 /* If these tables are accessed through ebcdic, the access will be converted to 4634 * latin1 first */ 4635 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */ 4636 0, 1, 2, 3, 4, 5, 6, 7, 4637 8, 9, 10, 11, 12, 13, 14, 15, 4638 16, 17, 18, 19, 20, 21, 22, 23, 4639 24, 25, 26, 27, 28, 29, 30, 31, 4640 32, 33, 34, 35, 36, 37, 38, 39, 4641 40, 41, 42, 43, 44, 45, 46, 47, 4642 48, 49, 50, 51, 52, 53, 54, 55, 4643 56, 57, 58, 59, 60, 61, 62, 63, 4644 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4645 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4646 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4647 'x', 'y', 'z', 91, 92, 93, 94, 95, 4648 96, 97, 98, 99, 100, 101, 102, 103, 4649 104, 105, 106, 107, 108, 109, 110, 111, 4650 112, 113, 114, 115, 116, 117, 118, 119, 4651 120, 121, 122, 123, 124, 125, 126, 127, 4652 128, 129, 130, 131, 132, 133, 134, 135, 4653 136, 137, 138, 139, 140, 141, 142, 143, 4654 144, 145, 146, 147, 148, 149, 150, 151, 4655 152, 153, 154, 155, 156, 157, 158, 159, 4656 160, 161, 162, 163, 164, 165, 166, 167, 4657 168, 169, 170, 171, 172, 173, 174, 175, 4658 176, 177, 178, 179, 180, 181, 182, 183, 4659 184, 185, 186, 187, 188, 189, 190, 191, 4660 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32, 4661 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32, 4662 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215, 4663 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223, 4664 224, 225, 226, 227, 228, 229, 230, 231, 4665 232, 233, 234, 235, 236, 237, 238, 239, 4666 240, 241, 242, 243, 244, 245, 246, 247, 4667 248, 249, 250, 251, 252, 253, 254, 255 4668 }; 4669 4670 /* upper and title case of latin1 characters, modified so that the three tricky 4671 * ones are mapped to 255 (which is one of the three) */ 4672 EXTCONST unsigned char PL_mod_latin1_uc[] = { 4673 0, 1, 2, 3, 4, 5, 6, 7, 4674 8, 9, 10, 11, 12, 13, 14, 15, 4675 16, 17, 18, 19, 20, 21, 22, 23, 4676 24, 25, 26, 27, 28, 29, 30, 31, 4677 32, 33, 34, 35, 36, 37, 38, 39, 4678 40, 41, 42, 43, 44, 45, 46, 47, 4679 48, 49, 50, 51, 52, 53, 54, 55, 4680 56, 57, 58, 59, 60, 61, 62, 63, 4681 64, 65, 66, 67, 68, 69, 70, 71, 4682 72, 73, 74, 75, 76, 77, 78, 79, 4683 80, 81, 82, 83, 84, 85, 86, 87, 4684 88, 89, 90, 91, 92, 93, 94, 95, 4685 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4686 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4687 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4688 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4689 128, 129, 130, 131, 132, 133, 134, 135, 4690 136, 137, 138, 139, 140, 141, 142, 143, 4691 144, 145, 146, 147, 148, 149, 150, 151, 4692 152, 153, 154, 155, 156, 157, 158, 159, 4693 160, 161, 162, 163, 164, 165, 166, 167, 4694 168, 169, 170, 171, 172, 173, 174, 175, 4695 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183, 4696 184, 185, 186, 187, 188, 189, 190, 191, 4697 192, 193, 194, 195, 196, 197, 198, 199, 4698 200, 201, 202, 203, 204, 205, 206, 207, 4699 208, 209, 210, 211, 212, 213, 214, 215, 4700 216, 217, 218, 219, 220, 221, 222, 4701 #if UNICODE_MAJOR_VERSION > 2 \ 4702 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \ 4703 && UNICODE_DOT_DOT_VERSION >= 8) 4704 255 /*sharp s*/, 4705 #else /* uc(sharp s) is 'sharp s' itself in early unicode */ 4706 223, 4707 #endif 4708 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32, 4709 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32, 4710 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247, 4711 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255 4712 }; 4713 #endif /* !EBCDIC, but still in DOINIT */ 4714 #else /* ! DOINIT */ 4715 # ifndef EBCDIC 4716 EXTCONST unsigned char PL_fold[]; 4717 EXTCONST unsigned char PL_fold_latin1[]; 4718 EXTCONST unsigned char PL_mod_latin1_uc[]; 4719 EXTCONST unsigned char PL_latin1_lc[]; 4720 # endif 4721 #endif 4722 4723 #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */ 4724 #ifdef DOINIT 4725 EXT unsigned char PL_fold_locale[256] = { /* Unfortunately not EXTCONST. */ 4726 0, 1, 2, 3, 4, 5, 6, 7, 4727 8, 9, 10, 11, 12, 13, 14, 15, 4728 16, 17, 18, 19, 20, 21, 22, 23, 4729 24, 25, 26, 27, 28, 29, 30, 31, 4730 32, 33, 34, 35, 36, 37, 38, 39, 4731 40, 41, 42, 43, 44, 45, 46, 47, 4732 48, 49, 50, 51, 52, 53, 54, 55, 4733 56, 57, 58, 59, 60, 61, 62, 63, 4734 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4735 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4736 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4737 'x', 'y', 'z', 91, 92, 93, 94, 95, 4738 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4739 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4740 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4741 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4742 128, 129, 130, 131, 132, 133, 134, 135, 4743 136, 137, 138, 139, 140, 141, 142, 143, 4744 144, 145, 146, 147, 148, 149, 150, 151, 4745 152, 153, 154, 155, 156, 157, 158, 159, 4746 160, 161, 162, 163, 164, 165, 166, 167, 4747 168, 169, 170, 171, 172, 173, 174, 175, 4748 176, 177, 178, 179, 180, 181, 182, 183, 4749 184, 185, 186, 187, 188, 189, 190, 191, 4750 192, 193, 194, 195, 196, 197, 198, 199, 4751 200, 201, 202, 203, 204, 205, 206, 207, 4752 208, 209, 210, 211, 212, 213, 214, 215, 4753 216, 217, 218, 219, 220, 221, 222, 223, 4754 224, 225, 226, 227, 228, 229, 230, 231, 4755 232, 233, 234, 235, 236, 237, 238, 239, 4756 240, 241, 242, 243, 244, 245, 246, 247, 4757 248, 249, 250, 251, 252, 253, 254, 255 4758 }; 4759 #else 4760 EXT unsigned char PL_fold_locale[256]; /* Unfortunately not EXTCONST. */ 4761 #endif 4762 #endif /* !PERL_GLOBAL_STRUCT */ 4763 4764 #ifdef DOINIT 4765 #ifdef EBCDIC 4766 EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */ 4767 1, 2, 84, 151, 154, 155, 156, 157, 4768 165, 246, 250, 3, 158, 7, 18, 29, 4769 40, 51, 62, 73, 85, 96, 107, 118, 4770 129, 140, 147, 148, 149, 150, 152, 153, 4771 255, 6, 8, 9, 10, 11, 12, 13, 4772 14, 15, 24, 25, 26, 27, 28, 226, 4773 29, 30, 31, 32, 33, 43, 44, 45, 4774 46, 47, 48, 49, 50, 76, 77, 78, 4775 79, 80, 81, 82, 83, 84, 85, 86, 4776 87, 94, 95, 234, 181, 233, 187, 190, 4777 180, 96, 97, 98, 99, 100, 101, 102, 4778 104, 112, 182, 174, 236, 232, 229, 103, 4779 228, 226, 114, 115, 116, 117, 118, 119, 4780 120, 121, 122, 235, 176, 230, 194, 162, 4781 130, 131, 132, 133, 134, 135, 136, 137, 4782 138, 139, 201, 205, 163, 217, 220, 224, 4783 5, 248, 227, 244, 242, 255, 241, 231, 4784 240, 253, 16, 197, 19, 20, 21, 187, 4785 23, 169, 210, 245, 237, 249, 247, 239, 4786 168, 252, 34, 196, 36, 37, 38, 39, 4787 41, 42, 251, 254, 238, 223, 221, 213, 4788 225, 177, 52, 53, 54, 55, 56, 57, 4789 58, 59, 60, 61, 63, 64, 65, 66, 4790 67, 68, 69, 70, 71, 72, 74, 75, 4791 205, 208, 186, 202, 200, 218, 198, 179, 4792 178, 214, 88, 89, 90, 91, 92, 93, 4793 217, 166, 170, 207, 199, 209, 206, 204, 4794 160, 212, 105, 106, 108, 109, 110, 111, 4795 203, 113, 216, 215, 192, 175, 193, 243, 4796 172, 161, 123, 124, 125, 126, 127, 128, 4797 222, 219, 211, 195, 188, 193, 185, 184, 4798 191, 183, 141, 142, 143, 144, 145, 146 4799 }; 4800 #else /* ascii rather than ebcdic */ 4801 EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */ 4802 1, 2, 84, 151, 154, 155, 156, 157, 4803 165, 246, 250, 3, 158, 7, 18, 29, 4804 40, 51, 62, 73, 85, 96, 107, 118, 4805 129, 140, 147, 148, 149, 150, 152, 153, 4806 255, 182, 224, 205, 174, 176, 180, 217, 4807 233, 232, 236, 187, 235, 228, 234, 226, 4808 222, 219, 211, 195, 188, 193, 185, 184, 4809 191, 183, 201, 229, 181, 220, 194, 162, 4810 163, 208, 186, 202, 200, 218, 198, 179, 4811 178, 214, 166, 170, 207, 199, 209, 206, 4812 204, 160, 212, 216, 215, 192, 175, 173, 4813 243, 172, 161, 190, 203, 189, 164, 230, 4814 167, 248, 227, 244, 242, 255, 241, 231, 4815 240, 253, 169, 210, 245, 237, 249, 247, 4816 239, 168, 252, 251, 254, 238, 223, 221, 4817 213, 225, 177, 197, 171, 196, 159, 4, 4818 5, 6, 8, 9, 10, 11, 12, 13, 4819 14, 15, 16, 17, 19, 20, 21, 22, 4820 23, 24, 25, 26, 27, 28, 30, 31, 4821 32, 33, 34, 35, 36, 37, 38, 39, 4822 41, 42, 43, 44, 45, 46, 47, 48, 4823 49, 50, 52, 53, 54, 55, 56, 57, 4824 58, 59, 60, 61, 63, 64, 65, 66, 4825 67, 68, 69, 70, 71, 72, 74, 75, 4826 76, 77, 78, 79, 80, 81, 82, 83, 4827 86, 87, 88, 89, 90, 91, 92, 93, 4828 94, 95, 97, 98, 99, 100, 101, 102, 4829 103, 104, 105, 106, 108, 109, 110, 111, 4830 112, 113, 114, 115, 116, 117, 119, 120, 4831 121, 122, 123, 124, 125, 126, 127, 128, 4832 130, 131, 132, 133, 134, 135, 136, 137, 4833 138, 139, 141, 142, 143, 144, 145, 146 4834 }; 4835 #endif 4836 #else 4837 EXTCONST unsigned char PL_freq[]; 4838 #endif 4839 4840 /* Although only used for debugging, these constants must be available in 4841 * non-debugging builds too, since they're used in ext/re/re_exec.c, 4842 * which has DEBUGGING enabled always */ 4843 #ifdef DOINIT 4844 EXTCONST char* const PL_block_type[] = { 4845 "NULL", 4846 "WHEN", 4847 "BLOCK", 4848 "GIVEN", 4849 "LOOP_ARY", 4850 "LOOP_LAZYSV", 4851 "LOOP_LAZYIV", 4852 "LOOP_LIST", 4853 "LOOP_PLAIN", 4854 "SUB", 4855 "FORMAT", 4856 "EVAL", 4857 "SUBST" 4858 }; 4859 #else 4860 EXTCONST char* PL_block_type[]; 4861 #endif 4862 4863 /* These are all the compile time options that affect binary compatibility. 4864 Other compile time options that are binary compatible are in perl.c 4865 (in S_Internals_V()). Both are combined for the output of perl -V 4866 However, this string will be embedded in any shared perl library, which will 4867 allow us add a comparison check in perlmain.c in the near future. */ 4868 #ifdef DOINIT 4869 EXTCONST char PL_bincompat_options[] = 4870 # ifdef DEBUG_LEAKING_SCALARS 4871 " DEBUG_LEAKING_SCALARS" 4872 # endif 4873 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP 4874 " DEBUG_LEAKING_SCALARS_FORK_DUMP" 4875 # endif 4876 # ifdef FCRYPT 4877 " FCRYPT" 4878 # endif 4879 # ifdef HAS_TIMES 4880 " HAS_TIMES" 4881 # endif 4882 # ifdef HAVE_INTERP_INTERN 4883 " HAVE_INTERP_INTERN" 4884 # endif 4885 # ifdef MULTIPLICITY 4886 " MULTIPLICITY" 4887 # endif 4888 # ifdef MYMALLOC 4889 " MYMALLOC" 4890 # endif 4891 # ifdef PERLIO_LAYERS 4892 " PERLIO_LAYERS" 4893 # endif 4894 # ifdef PERL_DEBUG_READONLY_COW 4895 " PERL_DEBUG_READONLY_COW" 4896 # endif 4897 # ifdef PERL_DEBUG_READONLY_OPS 4898 " PERL_DEBUG_READONLY_OPS" 4899 # endif 4900 # ifdef PERL_GLOBAL_STRUCT 4901 " PERL_GLOBAL_STRUCT" 4902 # endif 4903 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 4904 " PERL_GLOBAL_STRUCT_PRIVATE" 4905 # endif 4906 # ifdef PERL_IMPLICIT_CONTEXT 4907 " PERL_IMPLICIT_CONTEXT" 4908 # endif 4909 # ifdef PERL_IMPLICIT_SYS 4910 " PERL_IMPLICIT_SYS" 4911 # endif 4912 # ifdef PERL_MICRO 4913 " PERL_MICRO" 4914 # endif 4915 # ifdef PERL_NEED_APPCTX 4916 " PERL_NEED_APPCTX" 4917 # endif 4918 # ifdef PERL_NEED_TIMESBASE 4919 " PERL_NEED_TIMESBASE" 4920 # endif 4921 # ifdef PERL_POISON 4922 " PERL_POISON" 4923 # endif 4924 # ifdef PERL_SAWAMPERSAND 4925 " PERL_SAWAMPERSAND" 4926 # endif 4927 # ifdef PERL_TRACK_MEMPOOL 4928 " PERL_TRACK_MEMPOOL" 4929 # endif 4930 # ifdef PERL_USES_PL_PIDSTATUS 4931 " PERL_USES_PL_PIDSTATUS" 4932 # endif 4933 # ifdef USE_64_BIT_ALL 4934 " USE_64_BIT_ALL" 4935 # endif 4936 # ifdef USE_64_BIT_INT 4937 " USE_64_BIT_INT" 4938 # endif 4939 # ifdef USE_IEEE 4940 " USE_IEEE" 4941 # endif 4942 # ifdef USE_ITHREADS 4943 " USE_ITHREADS" 4944 # endif 4945 # ifdef USE_LARGE_FILES 4946 " USE_LARGE_FILES" 4947 # endif 4948 # ifdef USE_LOCALE_COLLATE 4949 " USE_LOCALE_COLLATE" 4950 # endif 4951 # ifdef USE_LOCALE_NUMERIC 4952 " USE_LOCALE_NUMERIC" 4953 # endif 4954 # ifdef USE_LOCALE_TIME 4955 " USE_LOCALE_TIME" 4956 # endif 4957 # ifdef USE_LONG_DOUBLE 4958 " USE_LONG_DOUBLE" 4959 # endif 4960 # ifdef USE_PERLIO 4961 " USE_PERLIO" 4962 # endif 4963 # ifdef USE_QUADMATH 4964 " USE_QUADMATH" 4965 # endif 4966 # ifdef USE_REENTRANT_API 4967 " USE_REENTRANT_API" 4968 # endif 4969 # ifdef USE_SOCKS 4970 " USE_SOCKS" 4971 # endif 4972 # ifdef VMS_DO_SOCKETS 4973 " VMS_DO_SOCKETS" 4974 # endif 4975 # ifdef VMS_SHORTEN_LONG_SYMBOLS 4976 " VMS_SHORTEN_LONG_SYMBOLS" 4977 # endif 4978 # ifdef VMS_WE_ARE_CASE_SENSITIVE 4979 " VMS_SYMBOL_CASE_AS_IS" 4980 # endif 4981 ""; 4982 #else 4983 EXTCONST char PL_bincompat_options[]; 4984 #endif 4985 4986 #ifndef PERL_SET_PHASE 4987 # define PERL_SET_PHASE(new_phase) \ 4988 PERL_DTRACE_PROBE_PHASE(new_phase); \ 4989 PL_phase = new_phase; 4990 #endif 4991 4992 /* The interpreter phases. If these ever change, PL_phase_names right below will 4993 * need to be updated accordingly. */ 4994 enum perl_phase { 4995 PERL_PHASE_CONSTRUCT = 0, 4996 PERL_PHASE_START = 1, 4997 PERL_PHASE_CHECK = 2, 4998 PERL_PHASE_INIT = 3, 4999 PERL_PHASE_RUN = 4, 5000 PERL_PHASE_END = 5, 5001 PERL_PHASE_DESTRUCT = 6 5002 }; 5003 5004 #ifdef DOINIT 5005 EXTCONST char *const PL_phase_names[] = { 5006 "CONSTRUCT", 5007 "START", 5008 "CHECK", 5009 "INIT", 5010 "RUN", 5011 "END", 5012 "DESTRUCT" 5013 }; 5014 #else 5015 EXTCONST char *const PL_phase_names[]; 5016 #endif 5017 5018 #ifndef PERL_CORE 5019 /* Do not use this macro. It only exists for extensions that rely on PL_dirty 5020 * instead of using the newer PL_phase, which provides everything PL_dirty 5021 * provided, and more. */ 5022 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT) 5023 5024 # define PL_amagic_generation PL_na 5025 # define PL_encoding ((SV *)NULL) 5026 #endif /* !PERL_CORE */ 5027 5028 #define PL_hints PL_compiling.cop_hints 5029 #define PL_maxo MAXO 5030 5031 END_EXTERN_C 5032 5033 /*****************************************************************************/ 5034 /* This lexer/parser stuff is currently global since yacc is hard to reenter */ 5035 /*****************************************************************************/ 5036 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */ 5037 5038 #ifdef __Lynx__ 5039 /* LynxOS defines these in scsi.h which is included via ioctl.h */ 5040 #ifdef FORMAT 5041 #undef FORMAT 5042 #endif 5043 #ifdef SPACE 5044 #undef SPACE 5045 #endif 5046 #endif 5047 5048 #define LEX_NOTPARSING 11 /* borrowed from toke.c */ 5049 5050 typedef enum { 5051 XOPERATOR, 5052 XTERM, 5053 XREF, 5054 XSTATE, 5055 XBLOCK, 5056 XATTRBLOCK, /* next token should be an attribute or block */ 5057 XATTRTERM, /* next token should be an attribute, or block in a term */ 5058 XTERMBLOCK, 5059 XBLOCKTERM, 5060 XPOSTDEREF, 5061 XTERMORDORDOR /* evil hack */ 5062 /* update exp_name[] in toke.c if adding to this enum */ 5063 } expectation; 5064 5065 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */ 5066 5067 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer 5068 special and there is no need for HINT_PRIVATE_MASK for COPs 5069 However, bitops store HINT_INTEGER in their op_private. 5070 5071 NOTE: The typical module using these has the bit value hard-coded, so don't 5072 blindly change the values of these. 5073 5074 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one 5075 is for "use locale 'FOO'" which excludes some categories. It requires going 5076 to %^H to find out which are in and which are out. This could be extended 5077 for the normal case of a plain HINT_LOCALE, so that %^H would be used for 5078 any locale form. */ 5079 #define HINT_INTEGER 0x00000001 /* integer pragma */ 5080 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */ 5081 #define HINT_LOCALE 0x00000004 /* locale pragma */ 5082 #define HINT_BYTES 0x00000008 /* bytes pragma */ 5083 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */ 5084 5085 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */ 5086 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */ 5087 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */ 5088 5089 #define HINT_BLOCK_SCOPE 0x00000100 5090 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */ 5091 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */ 5092 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */ 5093 5094 /* The HINT_NEW_* constants are used by the overload pragma */ 5095 #define HINT_NEW_INTEGER 0x00001000 5096 #define HINT_NEW_FLOAT 0x00002000 5097 #define HINT_NEW_BINARY 0x00004000 5098 #define HINT_NEW_STRING 0x00008000 5099 #define HINT_NEW_RE 0x00010000 5100 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */ 5101 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */ 5102 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */ 5103 5104 #define HINT_RE_TAINT 0x00100000 /* re pragma */ 5105 #define HINT_RE_EVAL 0x00200000 /* re pragma */ 5106 5107 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */ 5108 #define HINT_UTF8 0x00800000 /* utf8 pragma */ 5109 5110 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */ 5111 5112 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */ 5113 5114 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */ 5115 5116 /* Note: Used for HINT_M_VMSISH_*, 5117 currently defined by vms/vmsish.h: 5118 0x40000000 5119 0x80000000 5120 */ 5121 5122 /* The following are stored in $^H{sort}, not in PL_hints */ 5123 #define HINT_SORT_STABLE 0x00000100 /* sort styles */ 5124 #define HINT_SORT_UNSTABLE 0x00000200 5125 5126 /* flags for PL_sawampersand */ 5127 5128 #define SAWAMPERSAND_LEFT 1 /* saw $` */ 5129 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */ 5130 #define SAWAMPERSAND_RIGHT 4 /* saw $' */ 5131 5132 #ifndef PERL_SAWAMPERSAND 5133 # define PL_sawampersand \ 5134 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT) 5135 #endif 5136 5137 /* Used for debugvar magic */ 5138 #define DBVARMG_SINGLE 0 5139 #define DBVARMG_TRACE 1 5140 #define DBVARMG_SIGNAL 2 5141 #define DBVARMG_COUNT 3 5142 5143 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE]) 5144 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE]) 5145 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL]) 5146 5147 /* Various states of the input record separator SV (rs) */ 5148 #define RsSNARF(sv) (! SvOK(sv)) 5149 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv))) 5150 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv)) 5151 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0)) 5152 5153 /* A struct for keeping various DEBUGGING related stuff, 5154 * neatly packed. Currently only scratch variables for 5155 * constructing debug output are included. Needed always, 5156 * not just when DEBUGGING, though, because of the re extension. c*/ 5157 struct perl_debug_pad { 5158 SV pad[3]; 5159 }; 5160 5161 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i]) 5162 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \ 5163 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \ 5164 PERL_DEBUG_PAD(i)) 5165 5166 /* Enable variables which are pointers to functions */ 5167 typedef void (*peep_t)(pTHX_ OP* o); 5168 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm); 5169 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg, 5170 char* strend, char* strbeg, I32 minend, 5171 SV* screamer, void* data, U32 flags); 5172 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv, 5173 char *strpos, char *strend, 5174 U32 flags, 5175 re_scream_pos_data *d); 5176 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog); 5177 typedef void (*regfree_t) (pTHX_ struct regexp* r); 5178 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param); 5179 typedef I32 (*re_fold_t)(const char *, char const *, I32); 5180 5181 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*); 5182 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*); 5183 typedef void (*SVFUNC_t) (pTHX_ SV* const); 5184 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const); 5185 typedef void (*XSINIT_t) (pTHX); 5186 typedef void (*ATEXIT_t) (pTHX_ void*); 5187 typedef void (*XSUBADDR_t) (pTHX_ CV *); 5188 5189 typedef OP* (*Perl_ppaddr_t)(pTHX); 5190 typedef OP* (*Perl_check_t) (pTHX_ OP*); 5191 typedef void(*Perl_ophook_t)(pTHX_ OP*); 5192 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**); 5193 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *); 5194 5195 typedef void(*globhook_t)(pTHX); 5196 5197 #define KEYWORD_PLUGIN_DECLINE 0 5198 #define KEYWORD_PLUGIN_STMT 1 5199 #define KEYWORD_PLUGIN_EXPR 2 5200 5201 /* Interpreter exitlist entry */ 5202 typedef struct exitlistentry { 5203 void (*fn) (pTHX_ void*); 5204 void *ptr; 5205 } PerlExitListEntry; 5206 5207 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ 5208 /* These have to be before perlvars.h */ 5209 #if !defined(HAS_SIGACTION) && defined(VMS) 5210 # define FAKE_PERSISTENT_SIGNAL_HANDLERS 5211 #endif 5212 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ 5213 #if defined(KILL_BY_SIGPRC) 5214 # define FAKE_DEFAULT_SIGNAL_HANDLERS 5215 #endif 5216 5217 #if !defined(MULTIPLICITY) 5218 5219 struct interpreter { 5220 char broiled; 5221 }; 5222 5223 #else 5224 5225 /* If we have multiple interpreters define a struct 5226 holding variables which must be per-interpreter 5227 If we don't have threads anything that would have 5228 be per-thread is per-interpreter. 5229 */ 5230 5231 /* Set up PERLVAR macros for populating structs */ 5232 # define PERLVAR(prefix,var,type) type prefix##var; 5233 5234 /* 'var' is an array of length 'n' */ 5235 # define PERLVARA(prefix,var,n,type) type prefix##var[n]; 5236 5237 /* initialize 'var' to init' */ 5238 # define PERLVARI(prefix,var,type,init) type prefix##var; 5239 5240 /* like PERLVARI, but make 'var' a const */ 5241 # define PERLVARIC(prefix,var,type,init) type prefix##var; 5242 5243 struct interpreter { 5244 # include "intrpvar.h" 5245 }; 5246 5247 EXTCONST U16 PL_interp_size 5248 INIT(sizeof(struct interpreter)); 5249 5250 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \ 5251 STRUCT_OFFSET(struct interpreter, member) + \ 5252 sizeof(((struct interpreter*)0)->member) 5253 5254 /* This will be useful for subsequent releases, because this has to be the 5255 same in your libperl as in main(), else you have a mismatch and must abort. 5256 */ 5257 EXTCONST U16 PL_interp_size_5_18_0 5258 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER)); 5259 5260 5261 # ifdef PERL_GLOBAL_STRUCT 5262 /* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined, 5263 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */ 5264 5265 struct perl_vars { 5266 # include "perlvars.h" 5267 }; 5268 5269 EXTCONST U16 PL_global_struct_size 5270 INIT(sizeof(struct perl_vars)); 5271 5272 # ifdef PERL_CORE 5273 # ifndef PERL_GLOBAL_STRUCT_PRIVATE 5274 EXT struct perl_vars PL_Vars; 5275 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars); 5276 # undef PERL_GET_VARS 5277 # define PERL_GET_VARS() PL_VarsPtr 5278 # endif /* !PERL_GLOBAL_STRUCT_PRIVATE */ 5279 # else /* PERL_CORE */ 5280 # if !defined(__GNUC__) || !defined(WIN32) 5281 EXT 5282 # endif /* WIN32 */ 5283 struct perl_vars *PL_VarsPtr; 5284 # define PL_Vars (*((PL_VarsPtr) \ 5285 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX)))) 5286 # endif /* PERL_CORE */ 5287 # endif /* PERL_GLOBAL_STRUCT */ 5288 5289 /* Done with PERLVAR macros for now ... */ 5290 # undef PERLVAR 5291 # undef PERLVARA 5292 # undef PERLVARI 5293 # undef PERLVARIC 5294 5295 #endif /* MULTIPLICITY */ 5296 5297 struct tempsym; /* defined in pp_pack.c */ 5298 5299 #include "thread.h" 5300 #include "pp.h" 5301 5302 #undef PERL_CKDEF 5303 #undef PERL_PPDEF 5304 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o); 5305 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX); 5306 5307 #ifdef MYMALLOC 5308 # include "malloc_ctl.h" 5309 #endif 5310 5311 /* 5312 * This provides a layer of functions and macros to ensure extensions will 5313 * get to use the same RTL functions as the core. 5314 */ 5315 #if defined(WIN32) 5316 # include "win32iop.h" 5317 #endif 5318 5319 5320 #include "proto.h" 5321 5322 /* this has structure inits, so it cannot be included before here */ 5323 #include "opcode.h" 5324 5325 /* The following must follow proto.h as #defines mess up syntax */ 5326 5327 #if !defined(PERL_FOR_X2P) 5328 # include "embedvar.h" 5329 #endif 5330 5331 /* Now include all the 'global' variables 5332 * If we don't have threads or multiple interpreters 5333 * these include variables that would have been their struct-s 5334 */ 5335 5336 #define PERLVAR(prefix,var,type) EXT type PL_##var; 5337 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n]; 5338 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init); 5339 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init); 5340 5341 #if !defined(MULTIPLICITY) 5342 START_EXTERN_C 5343 # include "intrpvar.h" 5344 END_EXTERN_C 5345 # define PL_sv_yes (PL_sv_immortals[0]) 5346 # define PL_sv_undef (PL_sv_immortals[1]) 5347 # define PL_sv_no (PL_sv_immortals[2]) 5348 # define PL_sv_zero (PL_sv_immortals[3]) 5349 #endif 5350 5351 #ifdef PERL_CORE 5352 /* All core uses now exterminated. Ensure no zombies can return: */ 5353 # undef PL_na 5354 #endif 5355 5356 /* Now all the config stuff is setup we can include embed.h 5357 In particular, need the relevant *ish file included already, as it may 5358 define HAVE_INTERP_INTERN */ 5359 #include "embed.h" 5360 5361 #ifndef PERL_GLOBAL_STRUCT 5362 START_EXTERN_C 5363 5364 # include "perlvars.h" 5365 5366 END_EXTERN_C 5367 #endif 5368 5369 #undef PERLVAR 5370 #undef PERLVARA 5371 #undef PERLVARI 5372 #undef PERLVARIC 5373 5374 #if !defined(MULTIPLICITY) 5375 /* Set up PERLVAR macros for populating structs */ 5376 # define PERLVAR(prefix,var,type) type prefix##var; 5377 /* 'var' is an array of length 'n' */ 5378 # define PERLVARA(prefix,var,n,type) type prefix##var[n]; 5379 /* initialize 'var' to init' */ 5380 # define PERLVARI(prefix,var,type,init) type prefix##var; 5381 /* like PERLVARI, but make 'var' a const */ 5382 # define PERLVARIC(prefix,var,type,init) type prefix##var; 5383 5384 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */ 5385 struct PerlHandShakeInterpreter { 5386 # include "intrpvar.h" 5387 }; 5388 # undef PERLVAR 5389 # undef PERLVARA 5390 # undef PERLVARI 5391 # undef PERLVARIC 5392 #endif 5393 5394 START_EXTERN_C 5395 5396 /* dummy variables that hold pointers to both runops functions, thus forcing 5397 * them *both* to get linked in (useful for Peek.xs, debugging etc) */ 5398 5399 EXTCONST runops_proc_t PL_runops_std 5400 INIT(Perl_runops_standard); 5401 EXTCONST runops_proc_t PL_runops_dbg 5402 INIT(Perl_runops_debug); 5403 5404 #define EXT_MGVTBL EXTCONST MGVTBL 5405 5406 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40 5407 #define PERL_MAGIC_VALUE_MAGIC 0x80 5408 #define PERL_MAGIC_VTABLE_MASK 0x3F 5409 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \ 5410 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE) 5411 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \ 5412 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC) 5413 5414 #include "mg_vtable.h" 5415 5416 #ifdef DOINIT 5417 EXTCONST U8 PL_magic_data[256] = 5418 # ifdef PERL_MICRO 5419 # include "umg_data.h" 5420 # else 5421 # include "mg_data.h" 5422 # endif 5423 ; 5424 #else 5425 EXTCONST U8 PL_magic_data[256]; 5426 #endif 5427 5428 #ifdef DOINIT 5429 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */ 5430 EXTCONST bool 5431 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 }; 5432 EXTCONST bool 5433 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 }; 5434 EXTCONST bool 5435 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 }; 5436 EXTCONST bool 5437 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 }; 5438 EXTCONST bool 5439 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 }; 5440 EXTCONST bool 5441 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 }; 5442 5443 #else 5444 5445 EXTCONST bool PL_valid_types_IVX[]; 5446 EXTCONST bool PL_valid_types_NVX[]; 5447 EXTCONST bool PL_valid_types_PVX[]; 5448 EXTCONST bool PL_valid_types_RV[]; 5449 EXTCONST bool PL_valid_types_IV_set[]; 5450 EXTCONST bool PL_valid_types_NV_set[]; 5451 5452 #endif 5453 5454 /* In C99 we could use designated (named field) union initializers. 5455 * In C89 we need to initialize the member declared first. 5456 * In C++ we need extern C initializers. 5457 * 5458 * With the U8_NV version you will want to have inner braces, 5459 * while with the NV_U8 use just the NV. */ 5460 5461 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; } 5462 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; } 5463 5464 /* if these never got defined, they need defaults */ 5465 #ifndef PERL_SET_CONTEXT 5466 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i) 5467 #endif 5468 5469 #ifndef PERL_GET_CONTEXT 5470 # define PERL_GET_CONTEXT PERL_GET_INTERP 5471 #endif 5472 5473 #ifndef PERL_GET_THX 5474 # define PERL_GET_THX ((void*)NULL) 5475 #endif 5476 5477 #ifndef PERL_SET_THX 5478 # define PERL_SET_THX(t) NOOP 5479 #endif 5480 5481 #ifndef EBCDIC 5482 5483 /* The tables below are adapted from 5484 * http://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright 5485 * notice: 5486 5487 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de> 5488 5489 Permission is hereby granted, free of charge, to any person obtaining a copy of 5490 this software and associated documentation files (the "Software"), to deal in 5491 the Software without restriction, including without limitation the rights to 5492 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 5493 of the Software, and to permit persons to whom the Software is furnished to do 5494 so, subject to the following conditions: 5495 5496 The above copyright notice and this permission notice shall be included in all 5497 copies or substantial portions of the Software. 5498 5499 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 5500 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 5501 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 5502 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 5503 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 5504 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 5505 SOFTWARE. 5506 5507 */ 5508 5509 # ifdef DOINIT 5510 # if 0 /* This is the original table given in 5511 http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */ 5512 static U8 utf8d_C9[] = { 5513 /* The first part of the table maps bytes to character classes that 5514 * to reduce the size of the transition table and create bitmasks. */ 5515 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*/ 5516 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*/ 5517 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*/ 5518 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*/ 5519 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*/ 5520 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*/ 5521 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*/ 5522 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*/ 5523 5524 /* The second part is a transition table that maps a combination 5525 * of a state of the automaton and a character class to a state. */ 5526 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12, 5527 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12, 5528 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12, 5529 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12, 5530 12,36,12,12,12,12,12,12,12,12,12,12 5531 }; 5532 5533 # endif 5534 5535 /* This is a version of the above table customized for Perl that doesn't 5536 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit 5537 * machines). The classes have been renumbered so that the patterns are more 5538 * evident in the table. The class numbers for start bytes are constrained so 5539 * that they can be used as a shift count for masking off the leading one bits. 5540 * It would make the code simpler if start byte FF could also be handled, but 5541 * doing so would mean adding nodes for each of continuation bytes 6-12 5542 * remaining, and two more nodes for overlong detection (a total of 9), and 5543 * there is room only for 4 more nodes unless we make the array U16 instead of 5544 * U8. 5545 * 5546 * The classes are 5547 * 00-7F 0 5548 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC 5549 * FE 5550 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC 5551 * 84-87 9 Not legal immediately after start bytes E0 F0 F8 5552 * 88-8F 10 Not legal immediately after start bytes E0 F0 5553 * 90-9F 11 Not legal immediately after start byte E0 5554 * A0-BF 12 5555 * C0,C1 1 5556 * C2-DF 2 5557 * E0 13 5558 * E1-EF 3 5559 * F0 14 5560 * F1-F7 4 5561 * F8 15 5562 * F9-FB 5 5563 * FC 16 5564 * FD 6 5565 * FE 17 (or 1 on 32-bit machines, since it overflows) 5566 * FF 1 5567 */ 5568 5569 EXTCONST U8 PL_extended_utf8_dfa_tab[] = { 5570 /* The first part of the table maps bytes to character classes to reduce 5571 * the size of the transition table and create bitmasks. */ 5572 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/ 5573 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/ 5574 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/ 5575 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/ 5576 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/ 5577 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/ 5578 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/ 5579 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/ 5580 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/ 5581 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/ 5582 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/ 5583 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/ 5584 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/ 5585 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/ 5586 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/ 5587 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/ 5588 # ifdef UV_IS_QUAD 5589 17, /*FE*/ 5590 # else 5591 1, /*FE*/ 5592 # endif 5593 1, /*FF*/ 5594 5595 /* The second part is a transition table that maps a combination 5596 * of a state of the automaton and a character class to a new state, called a 5597 * node. The nodes are: 5598 * N0 The initial state, and final accepting one. 5599 * N1 Any one continuation byte (80-BF) left. This is transitioned to 5600 * immediately when the start byte indicates a two-byte sequence 5601 * N2 Any two continuation bytes left. 5602 * N3 Any three continuation bytes left. 5603 * N4 Any four continuation bytes left. 5604 * N5 Any five continuation bytes left. 5605 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong); 5606 * the other continuations transition to N1 5607 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong); 5608 * the other continuations transition to N2 5609 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong); 5610 * the other continuations transition to N3 5611 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong); 5612 * the other continuations transition to N4 5613 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong); 5614 * the other continuations transition to N5 5615 * 1 Reject. All transitions not mentioned above (except the single 5616 * byte ones (as they are always legal) are to this state. 5617 */ 5618 5619 # define NUM_CLASSES 18 5620 # define N0 0 5621 # define N1 ((N0) + NUM_CLASSES) 5622 # define N2 ((N1) + NUM_CLASSES) 5623 # define N3 ((N2) + NUM_CLASSES) 5624 # define N4 ((N3) + NUM_CLASSES) 5625 # define N5 ((N4) + NUM_CLASSES) 5626 # define N6 ((N5) + NUM_CLASSES) 5627 # define N7 ((N6) + NUM_CLASSES) 5628 # define N8 ((N7) + NUM_CLASSES) 5629 # define N9 ((N8) + NUM_CLASSES) 5630 # define N10 ((N9) + NUM_CLASSES) 5631 5632 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */ 5633 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10, 5634 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 5635 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1, 5636 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1, 5637 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1, 5638 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1, 5639 5640 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1, 5641 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1, 5642 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1, 5643 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1, 5644 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1, 5645 }; 5646 5647 /* And below is a version of the above table that accepts only strict UTF-8. 5648 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input 5649 * passes this dfa, it will be for a well-formed, non-problematic code point 5650 * that can be returned immediately. 5651 * 5652 * The "Implementation details" portion of 5653 * http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how 5654 * the first portion of the table maps each possible byte into a character 5655 * class. And that the classes for those bytes which are start bytes have been 5656 * carefully chosen so they serve as well to be used as a shift value to mask 5657 * off the leading 1 bits of the start byte. Unfortunately the addition of 5658 * being able to distinguish non-characters makes this not fully work. This is 5659 * because, now, the start bytes E1-EF have to be broken into 3 classes instead 5660 * of 2: 5661 * 1) ED because it could be a surrogate 5662 * 2) EF because it could be a non-character 5663 * 3) the rest, which can never evaluate to a problematic code point. 5664 * 5665 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a 5666 * shift (and hence class number) of either 3 or 4 to get a mask that works. 5667 * But that only allows two categories, and we need three. khw made the 5668 * decision to therefore treat the ED start byte as an error, so that the dfa 5669 * drops out immediately for that. In the dfa, classes 3 and 4 are used to 5670 * distinguish EF vs the rest. Then special code is used to deal with ED, 5671 * that's executed only when the dfa drops out. The code points started by ED 5672 * are half surrogates, and half hangul syllables. This means that 2048 of the 5673 * the hangul syllables (about 18%) take longer than all other non-problematic 5674 * code points to handle. 5675 * 5676 * The changes to handle non-characters requires the addition of states and 5677 * classes to the dfa. (See the section on "Mapping bytes to character 5678 * classes" in the linked-to document for further explanation of the original 5679 * dfa.) 5680 * 5681 * The classes are 5682 * 00-7F 0 5683 * 80-8E 9 5684 * 8F 10 5685 * 90-9E 11 5686 * 9F 12 5687 * A0-AE 13 5688 * AF 14 5689 * B0-B6 15 5690 * B7 16 5691 * B8-BD 15 5692 * BE 17 5693 * BF 18 5694 * C0,C1 1 5695 * C2-DF 2 5696 * E0 7 5697 * E1-EC 3 5698 * ED 1 5699 * EE 3 5700 * EF 4 5701 * F0 8 5702 * F1-F3 6 (6 bits can be stripped) 5703 * F4 5 (only 5 can be stripped) 5704 * F5-FF 1 5705 */ 5706 5707 EXTCONST U8 PL_strict_utf8_dfa_tab[] = { 5708 /* The first part of the table maps bytes to character classes to reduce 5709 * the size of the transition table and create bitmasks. */ 5710 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/ 5711 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/ 5712 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/ 5713 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/ 5714 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/ 5715 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/ 5716 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/ 5717 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/ 5718 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/ 5719 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/ 5720 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/ 5721 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/ 5722 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/ 5723 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/ 5724 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/ 5725 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/ 5726 5727 /* The second part is a transition table that maps a combination 5728 * of a state of the automaton and a character class to a new state, called a 5729 * node. The nodes are: 5730 * N0 The initial state, and final accepting one. 5731 * N1 Any one continuation byte (80-BF) left. This is transitioned to 5732 * immediately when the start byte indicates a two-byte sequence 5733 * N2 Any two continuation bytes left. 5734 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong); 5735 * the other continuations transition to state N1 5736 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9; 5737 * the other continuations transitions to N1 5738 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong); 5739 * [9AB]F transition to N10; the other continuations to N2. 5740 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition 5741 * to N10; the other continuations to N2. 5742 * N7 Start byte is F4. Continuation bytes 90-BF are illegal 5743 * (non-unicode); 8F transitions to N10; the other continuations to N2 5744 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal 5745 * (non-characters); the other continuations transition to N0. 5746 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal 5747 * (non-characters); the other continuations transition to N0. 5748 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F. 5749 * Continuation byte BF transitions to N11; the other continuations to 5750 * N1 5751 * N11 Initial sequence is the two bytes given in N10 followed by BF. 5752 * Continuation bytes BE and BF are illegal (non-characters); the other 5753 * continuations transition to N0. 5754 * 1 Reject. All transitions not mentioned above (except the single 5755 * byte ones (as they are always legal) are to this state. 5756 */ 5757 5758 # undef N0 5759 # undef N1 5760 # undef N2 5761 # undef N3 5762 # undef N4 5763 # undef N5 5764 # undef N6 5765 # undef N7 5766 # undef N8 5767 # undef N9 5768 # undef NUM_CLASSES 5769 # define NUM_CLASSES 19 5770 # define N0 0 5771 # define N1 ((N0) + NUM_CLASSES) 5772 # define N2 ((N1) + NUM_CLASSES) 5773 # define N3 ((N2) + NUM_CLASSES) 5774 # define N4 ((N3) + NUM_CLASSES) 5775 # define N5 ((N4) + NUM_CLASSES) 5776 # define N6 ((N5) + NUM_CLASSES) 5777 # define N7 ((N6) + NUM_CLASSES) 5778 # define N8 ((N7) + NUM_CLASSES) 5779 # define N9 ((N8) + NUM_CLASSES) 5780 # define N10 ((N9) + NUM_CLASSES) 5781 # define N11 ((N10) + NUM_CLASSES) 5782 5783 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */ 5784 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5785 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5786 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1, 5787 5788 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, 5789 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9, 5790 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10, 5791 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10, 5792 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1, 5793 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 5794 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 5795 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11, 5796 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 5797 }; 5798 5799 /* And below is yet another version of the above tables that accepts only UTF-8 5800 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but 5801 * it allows non-characters. This is isomorphic to the original table 5802 * in http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ 5803 * 5804 * The classes are 5805 * 00-7F 0 5806 * 80-8F 9 5807 * 90-9F 10 5808 * A0-BF 11 5809 * C0,C1 1 5810 * C2-DF 2 5811 * E0 7 5812 * E1-EC 3 5813 * ED 4 5814 * EE-EF 3 5815 * F0 8 5816 * F1-F3 6 (6 bits can be stripped) 5817 * F4 5 (only 5 can be stripped) 5818 * F5-FF 1 5819 */ 5820 5821 EXTCONST U8 PL_c9_utf8_dfa_tab[] = { 5822 /* The first part of the table maps bytes to character classes to reduce 5823 * the size of the transition table and create bitmasks. */ 5824 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/ 5825 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/ 5826 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/ 5827 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/ 5828 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/ 5829 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/ 5830 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/ 5831 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/ 5832 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/ 5833 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/ 5834 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/ 5835 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/ 5836 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/ 5837 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/ 5838 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/ 5839 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/ 5840 5841 /* The second part is a transition table that maps a combination 5842 * of a state of the automaton and a character class to a new state, called a 5843 * node. The nodes are: 5844 * N0 The initial state, and final accepting one. 5845 * N1 Any one continuation byte (80-BF) left. This is transitioned to 5846 * immediately when the start byte indicates a two-byte sequence 5847 * N2 Any two continuation bytes left. 5848 * N3 Any three continuation bytes left. 5849 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong); 5850 * the other continuations transition to state N1 5851 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates, 5852 * so are illegal. The other continuations transition to state N1. 5853 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong); 5854 * the other continuations transition to N2 5855 * N7 Start byte is F4. Continuation bytes 90-BF are illegal 5856 * (non-unicode); the other continuations transition to N2 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 # undef N0 5862 # undef N1 5863 # undef N2 5864 # undef N3 5865 # undef N4 5866 # undef N5 5867 # undef N6 5868 # undef N7 5869 # undef NUM_CLASSES 5870 # define NUM_CLASSES 12 5871 # define N0 0 5872 # define N1 ((N0) + NUM_CLASSES) 5873 # define N2 ((N1) + NUM_CLASSES) 5874 # define N3 ((N2) + NUM_CLASSES) 5875 # define N4 ((N3) + NUM_CLASSES) 5876 # define N5 ((N4) + NUM_CLASSES) 5877 # define N6 ((N5) + NUM_CLASSES) 5878 # define N7 ((N6) + NUM_CLASSES) 5879 5880 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */ 5881 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1, 5882 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 5883 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, 5884 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2, 5885 5886 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, 5887 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1, 5888 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, 5889 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1, 5890 }; 5891 5892 # else /* End of is DOINIT */ 5893 5894 EXTCONST U8 PL_extended_utf8_dfa_tab[]; 5895 EXTCONST U8 PL_strict_utf8_dfa_tab[]; 5896 EXTCONST U8 PL_c9_utf8_dfa_tab[]; 5897 5898 # endif 5899 #endif /* end of isn't EBCDIC */ 5900 5901 #ifndef PERL_NO_INLINE_FUNCTIONS 5902 /* Static inline funcs that depend on includes and declarations above. 5903 Some of these reference functions in the perl object files, and some 5904 compilers aren't smart enough to eliminate unused static inline 5905 functions, so including this file in source code can cause link errors 5906 even if the source code uses none of the functions. Hence including these 5907 can be be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will 5908 (obviously) result in unworkable XS code, but allows simple probing code 5909 to continue to work, because it permits tests to include the perl headers 5910 for definitions without creating a link dependency on the perl library 5911 (which may not exist yet). 5912 */ 5913 5914 # include "inline.h" 5915 #endif 5916 5917 #include "overload.h" 5918 5919 END_EXTERN_C 5920 5921 struct am_table { 5922 U8 flags; 5923 U8 fallback; 5924 U16 spare; 5925 U32 was_ok_sub; 5926 CV* table[NofAMmeth]; 5927 }; 5928 struct am_table_short { 5929 U8 flags; 5930 U8 fallback; 5931 U16 spare; 5932 U32 was_ok_sub; 5933 }; 5934 typedef struct am_table AMT; 5935 typedef struct am_table_short AMTS; 5936 5937 #define AMGfallNEVER 1 5938 #define AMGfallNO 2 5939 #define AMGfallYES 3 5940 5941 #define AMTf_AMAGIC 1 5942 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC) 5943 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC) 5944 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC) 5945 5946 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg)) 5947 5948 /* 5949 * some compilers like to redefine cos et alia as faster 5950 * (and less accurate?) versions called F_cos et cetera (Quidquid 5951 * latine dictum sit, altum viditur.) This trick collides with 5952 * the Perl overloading (amg). The following #defines fool both. 5953 */ 5954 5955 #ifdef _FASTMATH 5956 # ifdef atan2 5957 # define F_atan2_amg atan2_amg 5958 # endif 5959 # ifdef cos 5960 # define F_cos_amg cos_amg 5961 # endif 5962 # ifdef exp 5963 # define F_exp_amg exp_amg 5964 # endif 5965 # ifdef log 5966 # define F_log_amg log_amg 5967 # endif 5968 # ifdef pow 5969 # define F_pow_amg pow_amg 5970 # endif 5971 # ifdef sin 5972 # define F_sin_amg sin_amg 5973 # endif 5974 # ifdef sqrt 5975 # define F_sqrt_amg sqrt_amg 5976 # endif 5977 #endif /* _FASTMATH */ 5978 5979 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \ 5980 PERLDBf_NOOPT | PERLDBf_INTER | \ 5981 PERLDBf_SUBLINE| PERLDBf_SINGLE| \ 5982 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \ 5983 PERLDBf_SAVESRC) 5984 /* No _NONAME, _GOTO */ 5985 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */ 5986 #define PERLDBf_LINE 0x02 /* Keep line # */ 5987 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */ 5988 #define PERLDBf_INTER 0x08 /* Preserve more data for 5989 later inspections */ 5990 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */ 5991 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */ 5992 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */ 5993 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */ 5994 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */ 5995 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */ 5996 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */ 5997 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */ 5998 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */ 5999 6000 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB) 6001 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE) 6002 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT) 6003 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER) 6004 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE) 6005 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE) 6006 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME) 6007 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO) 6008 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL) 6009 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON) 6010 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC) 6011 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS) 6012 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID) 6013 6014 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC)) 6015 6016 #ifdef USE_ITHREADS 6017 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex) 6018 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex) 6019 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex) 6020 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex) 6021 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex) 6022 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex) 6023 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex) 6024 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex) 6025 #else 6026 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP 6027 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP 6028 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP 6029 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP 6030 # define USER_PROP_MUTEX_INIT NOOP 6031 # define USER_PROP_MUTEX_LOCK NOOP 6032 # define USER_PROP_MUTEX_UNLOCK NOOP 6033 # define USER_PROP_MUTEX_TERM NOOP 6034 #endif 6035 6036 #ifdef USE_LOCALE /* These locale things are all subject to change */ 6037 6038 /* Returns TRUE if the plain locale pragma without a parameter is in effect. 6039 * */ 6040 # define IN_LOCALE_RUNTIME (PL_curcop \ 6041 && CopHINTS_get(PL_curcop) & HINT_LOCALE) 6042 6043 /* Returns TRUE if either form of the locale pragma is in effect */ 6044 # define IN_SOME_LOCALE_FORM_RUNTIME \ 6045 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL)) 6046 6047 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE) 6048 # define IN_SOME_LOCALE_FORM_COMPILETIME \ 6049 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL)) 6050 6051 # define IN_LOCALE \ 6052 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME) 6053 # define IN_SOME_LOCALE_FORM \ 6054 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \ 6055 : IN_SOME_LOCALE_FORM_RUNTIME) 6056 6057 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME 6058 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME 6059 6060 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL) 6061 # define IN_LC_PARTIAL_RUNTIME \ 6062 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL) 6063 6064 # define IN_LC_COMPILETIME(category) \ 6065 ( IN_LC_ALL_COMPILETIME \ 6066 || ( IN_LC_PARTIAL_COMPILETIME \ 6067 && Perl__is_in_locale_category(aTHX_ TRUE, (category)))) 6068 # define IN_LC_RUNTIME(category) \ 6069 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \ 6070 && Perl__is_in_locale_category(aTHX_ FALSE, (category)))) 6071 # define IN_LC(category) \ 6072 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category)) 6073 6074 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE) 6075 6076 /* This internal macro should be called from places that operate under 6077 * locale rules. It there is a problem with the current locale that 6078 * hasn't been raised yet, it will output a warning this time. Because 6079 * this will so rarely be true, there is no point to optimize for time; 6080 * instead it makes sense to minimize space used and do all the work in 6081 * the rarely called function */ 6082 # ifdef USE_LOCALE_CTYPE 6083 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \ 6084 STMT_START { \ 6085 if (UNLIKELY(PL_warn_locale)) { \ 6086 Perl__warn_problematic_locale(); \ 6087 } \ 6088 } STMT_END 6089 # else 6090 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE 6091 # endif 6092 6093 6094 /* These two internal macros are called when a warning should be raised, 6095 * and will do so if enabled. The first takes a single code point 6096 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded 6097 * string, and an end position which it won't try to read past */ 6098 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \ 6099 STMT_START { \ 6100 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \ 6101 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \ 6102 "Wide character (U+%" UVXf ") in %s",\ 6103 (UV) cp, OP_DESC(PL_op)); \ 6104 } \ 6105 } STMT_END 6106 6107 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \ 6108 STMT_START { /* Check if to warn before doing the conversion work */\ 6109 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \ 6110 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \ 6111 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \ 6112 "Wide character (U+%" UVXf ") in %s", \ 6113 (cp == 0) \ 6114 ? UNICODE_REPLACEMENT \ 6115 : (UV) cp, \ 6116 OP_DESC(PL_op)); \ 6117 } \ 6118 } STMT_END 6119 6120 # endif /* PERL_CORE or PERL_IN_XSUB_RE */ 6121 #else /* No locale usage */ 6122 # define IN_LOCALE_RUNTIME 0 6123 # define IN_SOME_LOCALE_FORM_RUNTIME 0 6124 # define IN_LOCALE_COMPILETIME 0 6125 # define IN_SOME_LOCALE_FORM_COMPILETIME 0 6126 # define IN_LOCALE 0 6127 # define IN_SOME_LOCALE_FORM 0 6128 # define IN_LC_ALL_COMPILETIME 0 6129 # define IN_LC_ALL_RUNTIME 0 6130 # define IN_LC_PARTIAL_COMPILETIME 0 6131 # define IN_LC_PARTIAL_RUNTIME 0 6132 # define IN_LC_COMPILETIME(category) 0 6133 # define IN_LC_RUNTIME(category) 0 6134 # define IN_LC(category) 0 6135 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE 6136 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) 6137 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c) 6138 #endif 6139 6140 6141 /* Locale/thread synchronization macros. These aren't needed if using 6142 * thread-safe locale operations, except if something is broken */ 6143 #if defined(USE_LOCALE) \ 6144 && defined(USE_ITHREADS) \ 6145 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV)) 6146 6147 /* We have a locale object holding the 'C' locale for Posix 2008 */ 6148 # ifndef USE_POSIX_2008_LOCALE 6149 # define _LOCALE_TERM_POSIX_2008 NOOP 6150 # else 6151 # define _LOCALE_TERM_POSIX_2008 \ 6152 STMT_START { \ 6153 if (PL_C_locale_obj) { \ 6154 /* Make sure we aren't using the locale \ 6155 * space we are about to free */ \ 6156 uselocale(LC_GLOBAL_LOCALE); \ 6157 freelocale(PL_C_locale_obj); \ 6158 PL_C_locale_obj = (locale_t) NULL; \ 6159 } \ 6160 } STMT_END 6161 # endif 6162 6163 /* This is used as a generic lock for locale operations. For example this is 6164 * used when calling nl_langinfo() so that another thread won't zap the 6165 * contents of its buffer before it gets saved; and it's called when changing 6166 * the locale of LC_MESSAGES. On some systems the latter can cause the 6167 * nl_langinfo buffer to be zapped under a race condition. 6168 * 6169 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock 6170 * should be contained entirely within the locked portion of LC_NUMERIC. This 6171 * mutex should be used only in very short sections of code, while 6172 * LC_NUMERIC_LOCK may span more operations. By always following this 6173 * convention, deadlock should be impossible. But if necessary, the two 6174 * mutexes could be combined. 6175 * 6176 * Actually, the two macros just below with the '_V' suffixes are used in just 6177 * a few places where there is a broken localeconv(), but otherwise things are 6178 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and 6179 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */ 6180 # define LOCALE_LOCK_V \ 6181 STMT_START { \ 6182 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6183 "%s: %d: locking locale\n", __FILE__, __LINE__)); \ 6184 MUTEX_LOCK(&PL_locale_mutex); \ 6185 } STMT_END 6186 # define LOCALE_UNLOCK_V \ 6187 STMT_START { \ 6188 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6189 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \ 6190 MUTEX_UNLOCK(&PL_locale_mutex); \ 6191 } STMT_END 6192 6193 /* On windows, we just need the mutex for LOCALE_LOCK */ 6194 # ifdef TS_W32_BROKEN_LOCALECONV 6195 # define LOCALE_LOCK NOOP 6196 # define LOCALE_UNLOCK NOOP 6197 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex); 6198 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex) 6199 # define LC_NUMERIC_LOCK(cond) 6200 # define LC_NUMERIC_UNLOCK 6201 # else 6202 # define LOCALE_LOCK LOCALE_LOCK_V 6203 # define LOCALE_UNLOCK LOCALE_UNLOCK_V 6204 6205 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008) 6206 * systems */ 6207 # define LOCALE_INIT STMT_START { \ 6208 MUTEX_INIT(&PL_locale_mutex); \ 6209 MUTEX_INIT(&PL_lc_numeric_mutex); \ 6210 } STMT_END 6211 6212 # define LOCALE_TERM STMT_START { \ 6213 MUTEX_DESTROY(&PL_locale_mutex); \ 6214 MUTEX_DESTROY(&PL_lc_numeric_mutex); \ 6215 _LOCALE_TERM_POSIX_2008; \ 6216 } STMT_END 6217 6218 /* This mutex is used to create critical sections where we want the 6219 * LC_NUMERIC locale to be locked into either the C (standard) locale, or 6220 * the underlying locale, so that other threads interrupting this one don't 6221 * change it to the wrong state before we've had a chance to complete our 6222 * operation. It can stay locked over an entire printf operation, for 6223 * example. And so is made distinct from the LOCALE_LOCK mutex. 6224 * 6225 * This simulates kind of a general semaphore. The current thread will 6226 * lock the mutex if the per-thread variable is zero, and then increments 6227 * that variable. Each corresponding UNLOCK decrements the variable until 6228 * it is 0, at which point it actually unlocks the mutex. Since the 6229 * variable is per-thread, there is no race with other threads. 6230 * 6231 * The single argument is a condition to test for, and if true, to panic, 6232 * as this would be an attempt to complement the LC_NUMERIC state, and 6233 * we're not supposed to because it's locked. 6234 * 6235 * Clang improperly gives warnings for this, if not silenced: 6236 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks 6237 * */ 6238 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \ 6239 CLANG_DIAG_IGNORE(-Wthread-safety) \ 6240 STMT_START { \ 6241 if (PL_lc_numeric_mutex_depth <= 0) { \ 6242 MUTEX_LOCK(&PL_lc_numeric_mutex); \ 6243 PL_lc_numeric_mutex_depth = 1; \ 6244 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6245 "%s: %d: locking lc_numeric; depth=1\n", \ 6246 __FILE__, __LINE__)); \ 6247 } \ 6248 else { \ 6249 PL_lc_numeric_mutex_depth++; \ 6250 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6251 "%s: %d: avoided lc_numeric_lock; depth=%d\n", \ 6252 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \ 6253 if (cond_to_panic_if_already_locked) { \ 6254 Perl_croak_nocontext("panic: %s: %d: Trying to change" \ 6255 " LC_NUMERIC incompatibly", \ 6256 __FILE__, __LINE__); \ 6257 } \ 6258 } \ 6259 } STMT_END 6260 6261 # define LC_NUMERIC_UNLOCK \ 6262 STMT_START { \ 6263 if (PL_lc_numeric_mutex_depth <= 1) { \ 6264 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \ 6265 PL_lc_numeric_mutex_depth = 0; \ 6266 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6267 "%s: %d: unlocking lc_numeric; depth=0\n", \ 6268 __FILE__, __LINE__)); \ 6269 } \ 6270 else { \ 6271 PL_lc_numeric_mutex_depth--; \ 6272 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6273 "%s: %d: avoided lc_numeric_unlock; depth=%d\n", \ 6274 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \ 6275 } \ 6276 } STMT_END \ 6277 CLANG_DIAG_RESTORE 6278 6279 # endif /* End of needs locking LC_NUMERIC */ 6280 #else /* Below is no locale sync needed */ 6281 # define LOCALE_INIT 6282 # define LOCALE_LOCK 6283 # define LOCALE_LOCK_V 6284 # define LOCALE_UNLOCK 6285 # define LOCALE_UNLOCK_V 6286 # define LC_NUMERIC_LOCK(cond) 6287 # define LC_NUMERIC_UNLOCK 6288 # define LOCALE_TERM 6289 #endif 6290 6291 #ifdef USE_LOCALE_NUMERIC 6292 6293 /* These macros are for toggling between the underlying locale (UNDERLYING or 6294 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C 6295 * locale if the underlying locale is indistinguishable from it in the numeric 6296 * operations used by Perl, namely the decimal point, and even the thousands 6297 * separator.) 6298 6299 =head1 Locale-related functions and macros 6300 6301 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION 6302 6303 This macro should be used as a statement. It declares a private variable 6304 (whose name begins with an underscore) that is needed by the other macros in 6305 this section. Failing to include this correctly should lead to a syntax error. 6306 For compatibility with C89 C compilers it should be placed in a block before 6307 any executable statements. 6308 6309 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING 6310 6311 This is used by XS code that that is C<LC_NUMERIC> locale-aware to force the 6312 locale for category C<LC_NUMERIC> to be what perl thinks is the current 6313 underlying locale. (The perl interpreter could be wrong about what the 6314 underlying locale actually is if some C or XS code has called the C library 6315 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling 6316 this macro will update perl's records.) 6317 6318 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 6319 declare at compile time a private variable used by this macro. This macro 6320 should be called as a single statement, not an expression, but with an empty 6321 argument list, like this: 6322 6323 { 6324 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6325 ... 6326 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING(); 6327 ... 6328 RESTORE_LC_NUMERIC(); 6329 ... 6330 } 6331 6332 The private variable is used to save the current locale state, so 6333 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it. 6334 6335 On threaded perls not operating with thread-safe functionality, this macro uses 6336 a mutex to force a critical section. Therefore the matching RESTORE should be 6337 close by, and guaranteed to be called. 6338 6339 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED 6340 6341 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware. 6342 This locale category is generally kept set to a locale where the decimal radix 6343 character is a dot, and the separator between groups of digits is empty. This 6344 is because most XS code that reads floating point numbers is expecting them to 6345 have this syntax. 6346 6347 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be 6348 aware of locale if the call to the XS or C code from the Perl program is 6349 from within the scope of a S<C<use locale>>; or to ignore locale if the call is 6350 instead from outside such scope. 6351 6352 This macro is the start of wrapping the C or XS code; the wrap ending is done 6353 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise 6354 the state can be changed that will adversely affect other XS code. 6355 6356 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 6357 declare at compile time a private variable used by this macro. This macro 6358 should be called as a single statement, not an expression, but with an empty 6359 argument list, like this: 6360 6361 { 6362 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6363 ... 6364 STORE_LC_NUMERIC_SET_TO_NEEDED(); 6365 ... 6366 RESTORE_LC_NUMERIC(); 6367 ... 6368 } 6369 6370 On threaded perls not operating with thread-safe functionality, this macro uses 6371 a mutex to force a critical section. Therefore the matching RESTORE should be 6372 close by, and guaranteed to be called. 6373 6374 =for apidoc Am|void|RESTORE_LC_NUMERIC 6375 6376 This is used in conjunction with one of the macros 6377 L</STORE_LC_NUMERIC_SET_TO_NEEDED> 6378 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the 6379 C<LC_NUMERIC> state. 6380 6381 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 6382 declare at compile time a private variable used by this macro and the two 6383 C<STORE> ones. This macro should be called as a single statement, not an 6384 expression, but with an empty argument list, like this: 6385 6386 { 6387 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6388 ... 6389 RESTORE_LC_NUMERIC(); 6390 ... 6391 } 6392 6393 =cut 6394 6395 */ 6396 6397 /* If the underlying numeric locale has a non-dot decimal point or has a 6398 * non-empty floating point thousands separator, the current locale is instead 6399 * generally kept in the C locale instead of that underlying locale. The 6400 * current status is known by looking at two words. One is non-zero if the 6401 * current numeric locale is the standard C/POSIX one or is indistinguishable 6402 * from C. The other is non-zero if the current locale is the underlying 6403 * locale. Both can be non-zero if, as often happens, the underlying locale is 6404 * C or indistinguishable from it. 6405 * 6406 * khw believes the reason for the variables instead of the bits in a single 6407 * word is to avoid having to have masking instructions. */ 6408 6409 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard) 6410 6411 /* We can lock the category to stay in the C locale, making requests to the 6412 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2. 6413 * */ 6414 # define _NOT_IN_NUMERIC_UNDERLYING \ 6415 (! PL_numeric_underlying && PL_numeric_standard < 2) 6416 6417 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \ 6418 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL 6419 6420 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \ 6421 STMT_START { \ 6422 LC_NUMERIC_LOCK( \ 6423 ( ( IN_LC(LC_NUMERIC) && _NOT_IN_NUMERIC_UNDERLYING) \ 6424 || (! IN_LC(LC_NUMERIC) && _NOT_IN_NUMERIC_STANDARD)));\ 6425 if (IN_LC(LC_NUMERIC)) { \ 6426 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 6427 Perl_set_numeric_underlying(aTHX); \ 6428 _restore_LC_NUMERIC_function \ 6429 = &Perl_set_numeric_standard; \ 6430 } \ 6431 } \ 6432 else { \ 6433 if (_NOT_IN_NUMERIC_STANDARD) { \ 6434 Perl_set_numeric_standard(aTHX); \ 6435 _restore_LC_NUMERIC_function \ 6436 = &Perl_set_numeric_underlying; \ 6437 } \ 6438 } \ 6439 } STMT_END 6440 6441 # define RESTORE_LC_NUMERIC() \ 6442 STMT_START { \ 6443 if (_restore_LC_NUMERIC_function) { \ 6444 _restore_LC_NUMERIC_function(aTHX); \ 6445 } \ 6446 LC_NUMERIC_UNLOCK; \ 6447 } STMT_END 6448 6449 /* The next two macros set unconditionally. These should be rarely used, and 6450 * only after being sure that this is what is needed */ 6451 # define SET_NUMERIC_STANDARD() \ 6452 STMT_START { \ 6453 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6454 "%s: %d: lc_numeric standard=%d\n", \ 6455 __FILE__, __LINE__, PL_numeric_standard)); \ 6456 Perl_set_numeric_standard(aTHX); \ 6457 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6458 "%s: %d: lc_numeric standard=%d\n", \ 6459 __FILE__, __LINE__, PL_numeric_standard)); \ 6460 } STMT_END 6461 6462 # define SET_NUMERIC_UNDERLYING() \ 6463 STMT_START { \ 6464 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 6465 Perl_set_numeric_underlying(aTHX); \ 6466 } \ 6467 } STMT_END 6468 6469 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with 6470 * the RESTORE_foo ones called to switch back, but only if need be */ 6471 # define STORE_LC_NUMERIC_SET_STANDARD() \ 6472 STMT_START { \ 6473 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \ 6474 if (_NOT_IN_NUMERIC_STANDARD) { \ 6475 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\ 6476 Perl_set_numeric_standard(aTHX); \ 6477 } \ 6478 } STMT_END 6479 6480 /* Rarely, we want to change to the underlying locale even outside of 'use 6481 * locale'. This is principally in the POSIX:: functions */ 6482 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \ 6483 STMT_START { \ 6484 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \ 6485 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 6486 Perl_set_numeric_underlying(aTHX); \ 6487 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \ 6488 } \ 6489 } STMT_END 6490 6491 /* Lock/unlock to the C locale until unlock is called. This needs to be 6492 * recursively callable. [perl #128207] */ 6493 # define LOCK_LC_NUMERIC_STANDARD() \ 6494 STMT_START { \ 6495 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6496 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \ 6497 __FILE__, __LINE__, PL_numeric_standard + 1)); \ 6498 __ASSERT_(PL_numeric_standard) \ 6499 PL_numeric_standard++; \ 6500 } STMT_END 6501 6502 # define UNLOCK_LC_NUMERIC_STANDARD() \ 6503 STMT_START { \ 6504 if (PL_numeric_standard > 1) { \ 6505 PL_numeric_standard--; \ 6506 } \ 6507 else { \ 6508 assert(0); \ 6509 } \ 6510 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6511 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \ 6512 __FILE__, __LINE__, PL_numeric_standard)); \ 6513 } STMT_END 6514 6515 #else /* !USE_LOCALE_NUMERIC */ 6516 6517 # define SET_NUMERIC_STANDARD() 6518 # define SET_NUMERIC_UNDERLYING() 6519 # define IS_NUMERIC_RADIX(a, b) (0) 6520 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION 6521 # define STORE_LC_NUMERIC_SET_STANDARD() 6522 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() 6523 # define STORE_LC_NUMERIC_SET_TO_NEEDED() 6524 # define RESTORE_LC_NUMERIC() 6525 # define LOCK_LC_NUMERIC_STANDARD() 6526 # define UNLOCK_LC_NUMERIC_STANDARD() 6527 6528 #endif /* !USE_LOCALE_NUMERIC */ 6529 6530 #define Atof my_atof 6531 #define Strtod my_strtod 6532 6533 #if defined(HAS_STRTOD) \ 6534 || defined(USE_QUADMATH) \ 6535 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \ 6536 && defined(USE_LONG_DOUBLE)) 6537 # define Perl_strtod Strtod 6538 #endif 6539 6540 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \ 6541 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6542 # ifdef __hpux 6543 # define strtoll __strtoll /* secret handshake */ 6544 # endif 6545 # if defined(WIN64) && defined(_MSC_VER) 6546 # define strtoll _strtoi64 /* secret handshake */ 6547 # endif 6548 # if !defined(Strtol) && defined(HAS_STRTOLL) 6549 # define Strtol strtoll 6550 # endif 6551 # if !defined(Strtol) && defined(HAS_STRTOQ) 6552 # define Strtol strtoq 6553 # endif 6554 /* is there atoq() anywhere? */ 6555 #endif 6556 #if !defined(Strtol) && defined(HAS_STRTOL) 6557 # define Strtol strtol 6558 #endif 6559 #ifndef Atol 6560 /* It would be more fashionable to use Strtol() to define atol() 6561 * (as is done for Atoul(), see below) but for backward compatibility 6562 * we just assume atol(). */ 6563 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \ 6564 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6565 # ifdef WIN64 6566 # define atoll _atoi64 /* secret handshake */ 6567 # endif 6568 # define Atol atoll 6569 # else 6570 # define Atol atol 6571 # endif 6572 #endif 6573 6574 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \ 6575 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6576 # ifdef __hpux 6577 # define strtoull __strtoull /* secret handshake */ 6578 # endif 6579 # if defined(WIN64) && defined(_MSC_VER) 6580 # define strtoull _strtoui64 /* secret handshake */ 6581 # endif 6582 # if !defined(Strtoul) && defined(HAS_STRTOULL) 6583 # define Strtoul strtoull 6584 # endif 6585 # if !defined(Strtoul) && defined(HAS_STRTOUQ) 6586 # define Strtoul strtouq 6587 # endif 6588 /* is there atouq() anywhere? */ 6589 #endif 6590 #if !defined(Strtoul) && defined(HAS_STRTOUL) 6591 # define Strtoul strtoul 6592 #endif 6593 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */ 6594 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b)) 6595 #endif 6596 #ifndef Atoul 6597 # define Atoul(s) Strtoul(s, NULL, 10) 6598 #endif 6599 6600 #ifndef PERL_SCRIPT_MODE 6601 #define PERL_SCRIPT_MODE "r" 6602 #endif 6603 6604 /* not used. Kept as a NOOP for backcompat */ 6605 #define PERL_STACK_OVERFLOW_CHECK() NOOP 6606 6607 /* 6608 * Some nonpreemptive operating systems find it convenient to 6609 * check for asynchronous conditions after each op execution. 6610 * Keep this check simple, or it may slow down execution 6611 * massively. 6612 */ 6613 6614 #ifndef PERL_MICRO 6615 # ifndef PERL_ASYNC_CHECK 6616 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX) 6617 # endif 6618 #endif 6619 6620 #ifndef PERL_ASYNC_CHECK 6621 # define PERL_ASYNC_CHECK() NOOP 6622 #endif 6623 6624 /* 6625 * On some operating systems, a memory allocation may succeed, 6626 * but put the process too close to the system's comfort limit. 6627 * In this case, PERL_ALLOC_CHECK frees the pointer and sets 6628 * it to NULL. 6629 */ 6630 #ifndef PERL_ALLOC_CHECK 6631 #define PERL_ALLOC_CHECK(p) NOOP 6632 #endif 6633 6634 #ifdef HAS_SEM 6635 # include <sys/ipc.h> 6636 # include <sys/sem.h> 6637 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */ 6638 union semun { 6639 int val; 6640 struct semid_ds *buf; 6641 unsigned short *array; 6642 }; 6643 # endif 6644 # ifdef USE_SEMCTL_SEMUN 6645 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC 6646 union gccbug_semun { 6647 int val; 6648 struct semid_ds *buf; 6649 unsigned short *array; 6650 char __dummy[5]; 6651 }; 6652 # define semun gccbug_semun 6653 # endif 6654 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun) 6655 # elif defined(USE_SEMCTL_SEMID_DS) 6656 # ifdef EXTRA_F_IN_SEMUN_BUF 6657 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff) 6658 # else 6659 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf) 6660 # endif 6661 # endif 6662 #endif 6663 6664 /* 6665 * Boilerplate macros for initializing and accessing interpreter-local 6666 * data from C. All statics in extensions should be reworked to use 6667 * this, if you want to make the extension thread-safe. See 6668 * ext/XS/APItest/APItest.xs for an example of the use of these macros, 6669 * and perlxs.pod for more. 6670 * 6671 * Code that uses these macros is responsible for the following: 6672 * 1. #define MY_CXT_KEY to a unique string, e.g. 6673 * "DynaLoader::_guts" XS_VERSION 6674 * XXX in the current implementation, this string is ignored. 6675 * 2. Declare a typedef named my_cxt_t that is a structure that contains 6676 * all the data that needs to be interpreter-local. 6677 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t. 6678 * 4. Use the MY_CXT_INIT macro such that it is called exactly once 6679 * (typically put in the BOOT: section). 6680 * 5. Use the members of the my_cxt_t structure everywhere as 6681 * MY_CXT.member. 6682 * 6. Use the dMY_CXT macro (a declaration) in all the functions that 6683 * access MY_CXT. 6684 */ 6685 6686 #if defined(PERL_IMPLICIT_CONTEXT) 6687 6688 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure, 6689 * right after the definition (i.e. at file scope). The non-threads 6690 * case below uses it to declare the data as static. */ 6691 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 6692 # define START_MY_CXT 6693 # define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY) 6694 # define MY_CXT_INIT_ARG MY_CXT_KEY 6695 # else 6696 # define START_MY_CXT static int my_cxt_index = -1; 6697 # define MY_CXT_INDEX my_cxt_index 6698 # define MY_CXT_INIT_ARG &my_cxt_index 6699 # endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */ 6700 6701 /* Creates and zeroes the per-interpreter data. 6702 * (We allocate my_cxtp in a Perl SV so that it will be released when 6703 * the interpreter goes away.) */ 6704 # define MY_CXT_INIT \ 6705 my_cxt_t *my_cxtp = \ 6706 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \ 6707 PERL_UNUSED_VAR(my_cxtp) 6708 # define MY_CXT_INIT_INTERP(my_perl) \ 6709 my_cxt_t *my_cxtp = \ 6710 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \ 6711 PERL_UNUSED_VAR(my_cxtp) 6712 6713 /* This declaration should be used within all functions that use the 6714 * interpreter-local data. */ 6715 # define dMY_CXT \ 6716 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX] 6717 # define dMY_CXT_INTERP(my_perl) \ 6718 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX] 6719 6720 /* Clones the per-interpreter data. */ 6721 # define MY_CXT_CLONE \ 6722 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\ 6723 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \ 6724 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \ 6725 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t); 6726 6727 6728 6729 /* This macro must be used to access members of the my_cxt_t structure. 6730 * e.g. MY_CXT.some_data */ 6731 # define MY_CXT (*my_cxtp) 6732 6733 /* Judicious use of these macros can reduce the number of times dMY_CXT 6734 * is used. Use is similar to pTHX, aTHX etc. */ 6735 # define pMY_CXT my_cxt_t *my_cxtp 6736 # define pMY_CXT_ pMY_CXT, 6737 # define _pMY_CXT ,pMY_CXT 6738 # define aMY_CXT my_cxtp 6739 # define aMY_CXT_ aMY_CXT, 6740 # define _aMY_CXT ,aMY_CXT 6741 6742 #else /* PERL_IMPLICIT_CONTEXT */ 6743 6744 # define START_MY_CXT static my_cxt_t my_cxt; 6745 # define dMY_CXT_SV dNOOP 6746 # define dMY_CXT dNOOP 6747 # define dMY_CXT_INTERP(my_perl) dNOOP 6748 # define MY_CXT_INIT NOOP 6749 # define MY_CXT_CLONE NOOP 6750 # define MY_CXT my_cxt 6751 6752 # define pMY_CXT void 6753 # define pMY_CXT_ 6754 # define _pMY_CXT 6755 # define aMY_CXT 6756 # define aMY_CXT_ 6757 # define _aMY_CXT 6758 6759 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */ 6760 6761 #ifdef I_FCNTL 6762 # include <fcntl.h> 6763 #endif 6764 6765 #ifdef __Lynx__ 6766 # include <fcntl.h> 6767 #endif 6768 6769 #ifdef __amigaos4__ 6770 # undef FD_CLOEXEC /* a lie in AmigaOS */ 6771 #endif 6772 6773 #ifdef I_SYS_FILE 6774 # include <sys/file.h> 6775 #endif 6776 6777 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO) 6778 int flock(int fd, int op); 6779 #endif 6780 6781 #ifndef O_RDONLY 6782 /* Assume UNIX defaults */ 6783 # define O_RDONLY 0000 6784 # define O_WRONLY 0001 6785 # define O_RDWR 0002 6786 # define O_CREAT 0100 6787 #endif 6788 6789 #ifndef O_BINARY 6790 # define O_BINARY 0 6791 #endif 6792 6793 #ifndef O_TEXT 6794 # define O_TEXT 0 6795 #endif 6796 6797 #if O_TEXT != O_BINARY 6798 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop, 6799 * that is, you are somehow DOSish. */ 6800 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__) 6801 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect; 6802 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */ 6803 /* VOS has O_TEXT != O_BINARY, and they have effect, 6804 * but VOS always uses LF, never CRLF. */ 6805 /* If you have O_TEXT different from your O_BINARY but you still are 6806 * not a CRLF shop. */ 6807 # undef PERLIO_USING_CRLF 6808 # else 6809 /* If you really are DOSish. */ 6810 # define PERLIO_USING_CRLF 1 6811 # endif 6812 #endif 6813 6814 #ifdef I_LIBUTIL 6815 # include <libutil.h> /* setproctitle() in some FreeBSDs */ 6816 #endif 6817 6818 #ifndef EXEC_ARGV_CAST 6819 #define EXEC_ARGV_CAST(x) (char **)x 6820 #endif 6821 6822 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not 6823 int). value returned in pointed- 6824 to UV */ 6825 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */ 6826 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */ 6827 #define IS_NUMBER_NEG 0x08 /* leading minus sign */ 6828 #define IS_NUMBER_INFINITY 0x10 /* this is big */ 6829 #define IS_NUMBER_NAN 0x20 /* this is not */ 6830 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */ 6831 6832 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send) 6833 6834 /* Input flags: */ 6835 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */ 6836 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */ 6837 #define PERL_SCAN_SILENT_ILLDIGIT 0x04 /* grok_??? not warn about illegal digits */ 6838 #define PERL_SCAN_SILENT_NON_PORTABLE 0x08 /* grok_??? not warn about very large 6839 numbers which are <= UV_MAX */ 6840 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing 6841 and set IS_NUMBER_TRAILING */ 6842 6843 /* Output flags: */ 6844 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x02 /* should this merge with above? */ 6845 6846 /* to let user control profiling */ 6847 #ifdef PERL_GPROF_CONTROL 6848 extern void moncontrol(int); 6849 #define PERL_GPROF_MONCONTROL(x) moncontrol(x) 6850 #else 6851 #define PERL_GPROF_MONCONTROL(x) 6852 #endif 6853 6854 #ifdef UNDER_CE 6855 #include "wince.h" 6856 #endif 6857 6858 /* ISO 6429 NEL - C1 control NExt Line */ 6859 /* See http://www.unicode.org/unicode/reports/tr13/ */ 6860 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE 6861 6862 #ifndef PIPESOCK_MODE 6863 # define PIPESOCK_MODE 6864 #endif 6865 6866 #ifndef SOCKET_OPEN_MODE 6867 # define SOCKET_OPEN_MODE PIPESOCK_MODE 6868 #endif 6869 6870 #ifndef PIPE_OPEN_MODE 6871 # define PIPE_OPEN_MODE PIPESOCK_MODE 6872 #endif 6873 6874 #define PERL_MAGIC_UTF8_CACHESIZE 2 6875 6876 #define PERL_UNICODE_STDIN_FLAG 0x0001 6877 #define PERL_UNICODE_STDOUT_FLAG 0x0002 6878 #define PERL_UNICODE_STDERR_FLAG 0x0004 6879 #define PERL_UNICODE_IN_FLAG 0x0008 6880 #define PERL_UNICODE_OUT_FLAG 0x0010 6881 #define PERL_UNICODE_ARGV_FLAG 0x0020 6882 #define PERL_UNICODE_LOCALE_FLAG 0x0040 6883 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */ 6884 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100 6885 6886 #define PERL_UNICODE_STD_FLAG \ 6887 (PERL_UNICODE_STDIN_FLAG | \ 6888 PERL_UNICODE_STDOUT_FLAG | \ 6889 PERL_UNICODE_STDERR_FLAG) 6890 6891 #define PERL_UNICODE_INOUT_FLAG \ 6892 (PERL_UNICODE_IN_FLAG | \ 6893 PERL_UNICODE_OUT_FLAG) 6894 6895 #define PERL_UNICODE_DEFAULT_FLAGS \ 6896 (PERL_UNICODE_STD_FLAG | \ 6897 PERL_UNICODE_INOUT_FLAG | \ 6898 PERL_UNICODE_LOCALE_FLAG) 6899 6900 #define PERL_UNICODE_ALL_FLAGS 0x01ff 6901 6902 #define PERL_UNICODE_STDIN 'I' 6903 #define PERL_UNICODE_STDOUT 'O' 6904 #define PERL_UNICODE_STDERR 'E' 6905 #define PERL_UNICODE_STD 'S' 6906 #define PERL_UNICODE_IN 'i' 6907 #define PERL_UNICODE_OUT 'o' 6908 #define PERL_UNICODE_INOUT 'D' 6909 #define PERL_UNICODE_ARGV 'A' 6910 #define PERL_UNICODE_LOCALE 'L' 6911 #define PERL_UNICODE_WIDESYSCALLS 'W' 6912 #define PERL_UNICODE_UTF8CACHEASSERT 'a' 6913 6914 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001 6915 6916 /* Use instead of abs() since abs() forces its argument to be an int, 6917 * but also beware since this evaluates its argument twice, so no x++. */ 6918 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x)) 6919 6920 #if defined(__DECC) && defined(__osf__) 6921 #pragma message disable (mainparm) /* Perl uses the envp in main(). */ 6922 #endif 6923 6924 #define do_open(g, n, l, a, rm, rp, sf) \ 6925 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0) 6926 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION 6927 # define do_exec(cmd) do_exec3(cmd,0,0) 6928 #endif 6929 #ifdef OS2 6930 # define do_aexec Perl_do_aexec 6931 #else 6932 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0) 6933 #endif 6934 6935 /* check embedded \0 characters in pathnames passed to syscalls, 6936 but allow one ending \0 */ 6937 #define IS_SAFE_SYSCALL(p, len, what, op_name) (S_is_safe_syscall(aTHX_ (p), (len), (what), (op_name))) 6938 6939 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name)) 6940 6941 #if defined(OEMVS) || defined(__amigaos4__) 6942 #define NO_ENV_ARRAY_IN_MAIN 6943 #endif 6944 6945 /* These are used by Perl_pv_escape() and Perl_pv_pretty() 6946 * are here so that they are available throughout the core 6947 * NOTE that even though some are for _escape and some for _pretty 6948 * there must not be any clashes as the flags from _pretty are 6949 * passed straight through to _escape. 6950 */ 6951 6952 #define PERL_PV_ESCAPE_QUOTE 0x000001 6953 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE 6954 6955 #define PERL_PV_PRETTY_ELLIPSES 0x000002 6956 #define PERL_PV_PRETTY_LTGT 0x000004 6957 #define PERL_PV_PRETTY_EXACTSIZE 0x000008 6958 6959 #define PERL_PV_ESCAPE_UNI 0x000100 6960 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200 6961 #define PERL_PV_ESCAPE_NONASCII 0x000400 6962 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800 6963 6964 #define PERL_PV_ESCAPE_ALL 0x001000 6965 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000 6966 #define PERL_PV_ESCAPE_NOCLEAR 0x004000 6967 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR 6968 #define PERL_PV_ESCAPE_RE 0x008000 6969 6970 #define PERL_PV_ESCAPE_DWIM 0x010000 6971 6972 6973 /* used by pv_display in dump.c*/ 6974 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE 6975 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII 6976 6977 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \ 6978 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \ 6979 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT 6980 # define DOUBLE_IS_VAX_FLOAT 6981 #else 6982 # define DOUBLE_IS_IEEE_FORMAT 6983 #endif 6984 6985 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \ 6986 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \ 6987 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 6988 # define DOUBLE_LITTLE_ENDIAN 6989 #endif 6990 6991 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \ 6992 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \ 6993 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 6994 # define DOUBLE_BIG_ENDIAN 6995 #endif 6996 6997 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \ 6998 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 6999 # define DOUBLE_MIX_ENDIAN 7000 #endif 7001 7002 /* The VAX fp formats are neither consistently little-endian nor 7003 * big-endian, and neither are they really IEEE-mixed endian like 7004 * the mixed-endian ARM IEEE formats (with swapped bytes). 7005 * Ultimately, the VAX format came from the PDP-11. 7006 * 7007 * The ordering of the parts in VAX floats is quite vexing. 7008 * In the below the fraction_n are the mantissa bits. 7009 * 7010 * The fraction_1 is the most significant (numbering as by DEC/Digital), 7011 * while the rightmost bit in each fraction is the least significant: 7012 * in other words, big-endian bit order within the fractions. 7013 * 7014 * The fraction segments themselves would be big-endianly, except that 7015 * within 32 bit segments the less significant half comes first, the more 7016 * significant after, except that in the format H (used for long doubles) 7017 * the first fraction segment is alone, because the exponent is wider. 7018 * This means for example that both the most and the least significant 7019 * bits can be in the middle of the floats, not at either end. 7020 * 7021 * References: 7022 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm 7023 * http://www.quadibloc.com/comp/cp0201.htm 7024 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html 7025 * (somebody at HP should be fired for the URLs) 7026 * 7027 * F fraction_2:16 sign:1 exp:8 fraction_1:7 7028 * (exponent bias 128, hidden first one-bit) 7029 * 7030 * D fraction_2:16 sign:1 exp:8 fraction_1:7 7031 * fraction_4:16 fraction_3:16 7032 * (exponent bias 128, hidden first one-bit) 7033 * 7034 * G fraction_2:16 sign:1 exp:11 fraction_1:4 7035 * fraction_4:16 fraction_3:16 7036 * (exponent bias 1024, hidden first one-bit) 7037 * 7038 * H fraction_1:16 sign:1 exp:15 7039 * fraction_3:16 fraction_2:16 7040 * fraction_5:16 fraction_4:16 7041 * fraction_7:16 fraction_6:16 7042 * (exponent bias 16384, hidden first one-bit) 7043 * (available only on VAX, and only on Fortran?) 7044 * 7045 * The formats S, T and X are available on the Alpha (and Itanium, 7046 * also known as I64/IA64) and are equivalent with the IEEE-754 formats 7047 * binary32, binary64, and binary128 (commonly: float, double, long double). 7048 * 7049 * S sign:1 exp:8 mantissa:23 7050 * (exponent bias 127, hidden first one-bit) 7051 * 7052 * T sign:1 exp:11 mantissa:52 7053 * (exponent bias 1022, hidden first one-bit) 7054 * 7055 * X sign:1 exp:15 mantissa:112 7056 * (exponent bias 16382, hidden first one-bit) 7057 * 7058 */ 7059 7060 #ifdef DOUBLE_IS_VAX_FLOAT 7061 # define DOUBLE_VAX_ENDIAN 7062 #endif 7063 7064 #ifdef DOUBLE_IS_IEEE_FORMAT 7065 /* All the basic IEEE formats have the implicit bit, 7066 * except for the x86 80-bit extended formats, which will undef this. 7067 * Also note that the IEEE 754 subnormals (formerly known as denormals) 7068 * do not have the implicit bit of one. */ 7069 # define NV_IMPLICIT_BIT 7070 #endif 7071 7072 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE 7073 7074 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \ 7075 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 7076 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 7077 # define LONGDOUBLE_LITTLE_ENDIAN 7078 # endif 7079 7080 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \ 7081 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \ 7082 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 7083 # define LONGDOUBLE_BIG_ENDIAN 7084 # endif 7085 7086 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 7087 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7088 # define LONGDOUBLE_MIX_ENDIAN 7089 # endif 7090 7091 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 7092 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 7093 # define LONGDOUBLE_X86_80_BIT 7094 # ifdef USE_LONG_DOUBLE 7095 # undef NV_IMPLICIT_BIT 7096 # define NV_X86_80_BIT 7097 # endif 7098 # endif 7099 7100 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \ 7101 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \ 7102 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 7103 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7104 # define LONGDOUBLE_DOUBLEDOUBLE 7105 # endif 7106 7107 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT 7108 # define LONGDOUBLE_VAX_ENDIAN 7109 # endif 7110 7111 #endif /* LONG_DOUBLEKIND */ 7112 7113 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */ 7114 # if defined(DOUBLE_LITTLE_ENDIAN) 7115 # define NV_LITTLE_ENDIAN 7116 # elif defined(DOUBLE_BIG_ENDIAN) 7117 # define NV_BIG_ENDIAN 7118 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */ 7119 # define NV_MIX_ENDIAN 7120 # endif 7121 #elif NVSIZE == DOUBLESIZE 7122 # ifdef DOUBLE_LITTLE_ENDIAN 7123 # define NV_LITTLE_ENDIAN 7124 # endif 7125 # ifdef DOUBLE_BIG_ENDIAN 7126 # define NV_BIG_ENDIAN 7127 # endif 7128 # ifdef DOUBLE_MIX_ENDIAN 7129 # define NV_MIX_ENDIAN 7130 # endif 7131 # ifdef DOUBLE_VAX_ENDIAN 7132 # define NV_VAX_ENDIAN 7133 # endif 7134 #elif NVSIZE == LONG_DOUBLESIZE 7135 # ifdef LONGDOUBLE_LITTLE_ENDIAN 7136 # define NV_LITTLE_ENDIAN 7137 # endif 7138 # ifdef LONGDOUBLE_BIG_ENDIAN 7139 # define NV_BIG_ENDIAN 7140 # endif 7141 # ifdef LONGDOUBLE_MIX_ENDIAN 7142 # define NV_MIX_ENDIAN 7143 # endif 7144 # ifdef LONGDOUBLE_VAX_ENDIAN 7145 # define NV_VAX_ENDIAN 7146 # endif 7147 #endif 7148 7149 /* We have somehow managed not to define the denormal/subnormal 7150 * detection. 7151 * 7152 * This may happen if the compiler doesn't expose the C99 math like 7153 * the fpclassify() without some special switches. Perl tries to 7154 * stay C89, so for example -std=c99 is not an option. 7155 * 7156 * The Perl_isinf() and Perl_isnan() should have been defined even if 7157 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes 7158 * from the C89 DBL_MIN or moral equivalent. */ 7159 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN) 7160 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN) 7161 #endif 7162 7163 /* This is not a great fallback: subnormals tests will fail, 7164 * but at least Perl will link and 99.999% of tests will work. */ 7165 #if !defined(Perl_fp_class_denorm) 7166 # define Perl_fp_class_denorm(x) FALSE 7167 #endif 7168 7169 #ifdef DOUBLE_IS_IEEE_FORMAT 7170 # define DOUBLE_HAS_INF 7171 # define DOUBLE_HAS_NAN 7172 #endif 7173 7174 #ifdef DOUBLE_HAS_NAN 7175 7176 START_EXTERN_C 7177 7178 #ifdef DOINIT 7179 7180 /* PL_inf and PL_nan initialization. 7181 * 7182 * For inf and nan initialization the ultimate fallback is dividing 7183 * one or zero by zero: however, some compilers will warn or even fail 7184 * on divide-by-zero, but hopefully something earlier will work. 7185 * 7186 * If you are thinking of using HUGE_VAL for infinity, or using 7187 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)), 7188 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX, 7189 * and the math functions might be just generating DBL_MAX, or even zero. 7190 * 7191 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF). 7192 * Though logically correct, some compilers (like Visual C 2003) 7193 * falsely misoptimize that to zero (x-x is always zero, right?) 7194 * 7195 * Finally, note that not all floating point formats define Inf (or NaN). 7196 * For the infinity a large number may be used instead. Operations that 7197 * under the IEEE floating point would return Inf or NaN may return 7198 * either large numbers (positive or negative), or they may cause 7199 * a floating point exception or some other fault. 7200 */ 7201 7202 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */ 7203 GCC_DIAG_IGNORE_DECL(-Wc++-compat); 7204 7205 # ifdef USE_QUADMATH 7206 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time 7207 * constant. */ 7208 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q }; 7209 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES) 7210 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } }; 7211 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES) 7212 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } }; 7213 # else 7214 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE) 7215 # if defined(LDBL_INFINITY) 7216 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY }; 7217 # elif defined(LDBL_INF) 7218 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF }; 7219 # elif defined(INFINITY) 7220 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY }; 7221 # elif defined(INF) 7222 INFNAN_NV_U8_DECL PL_inf = { (NV)INF }; 7223 # else 7224 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */ 7225 # endif 7226 # else 7227 # if defined(DBL_INFINITY) 7228 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY }; 7229 # elif defined(DBL_INF) 7230 INFNAN_NV_U8_DECL PL_inf = { DBL_INF }; 7231 # elif defined(INFINITY) /* C99 */ 7232 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY }; 7233 # elif defined(INF) 7234 INFNAN_NV_U8_DECL PL_inf = { (NV)INF }; 7235 # else 7236 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */ 7237 # endif 7238 # endif 7239 # endif 7240 7241 # ifdef USE_QUADMATH 7242 /* Cannot use nanq("0") for PL_nan because not a compile-time 7243 * constant. */ 7244 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q }; 7245 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES) 7246 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } }; 7247 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES) 7248 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } }; 7249 # else 7250 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE) 7251 # if defined(LDBL_NAN) 7252 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN }; 7253 # elif defined(LDBL_QNAN) 7254 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN }; 7255 # elif defined(NAN) 7256 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN }; 7257 # else 7258 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */ 7259 # endif 7260 # else 7261 # if defined(DBL_NAN) 7262 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN }; 7263 # elif defined(DBL_QNAN) 7264 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN }; 7265 # elif defined(NAN) /* C99 */ 7266 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN }; 7267 # else 7268 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */ 7269 # endif 7270 # endif 7271 # endif 7272 7273 GCC_DIAG_RESTORE_DECL; 7274 7275 #else 7276 7277 INFNAN_NV_U8_DECL PL_inf; 7278 INFNAN_NV_U8_DECL PL_nan; 7279 7280 #endif 7281 7282 END_EXTERN_C 7283 7284 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h), 7285 * we will define NV_INF/NV_NAN as the nv part of the global const 7286 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN 7287 * might not be a compile-time constant, in which case it cannot be 7288 * used to initialize PL_inf/PL_nan above. */ 7289 #ifndef NV_INF 7290 # define NV_INF PL_inf.nv 7291 #endif 7292 #ifndef NV_NAN 7293 # define NV_NAN PL_nan.nv 7294 #endif 7295 7296 /* NaNs (not-a-numbers) can carry payload bits, in addition to 7297 * "nan-ness". Part of the payload is the quiet/signaling bit. 7298 * To back up a bit (harhar): 7299 * 7300 * For IEEE 754 64-bit formats [1]: 7301 * 7302 * s 000 (mantissa all-zero) zero 7303 * s 000 (mantissa non-zero) subnormals (denormals) 7304 * s 001 ... 7fe normals 7305 * s 7ff q nan 7306 * 7307 * For IEEE 754 128-bit formats: 7308 * 7309 * s 0000 (mantissa all-zero) zero 7310 * s 0000 (mantissa non-zero) subnormals (denormals) 7311 * s 0001 ... 7ffe normals 7312 * s 7fff q nan 7313 * 7314 * [1] this looks like big-endian, but applies equally to little-endian. 7315 * 7316 * s = Sign bit. Yes, zeros and nans can have negative sign, 7317 * the interpretation is application-specific. 7318 * 7319 * q = Quietness bit, the interpretation is platform-specific. 7320 * Most platforms have the most significant bit being one 7321 * meaning quiet, but some (older mips, hppa) have the msb 7322 * being one meaning signaling. Note that the above means 7323 * that on most platforms there cannot be signaling nan with 7324 * zero payload because that is identical with infinity; 7325 * while conversely on older mips/hppa there cannot be a quiet nan 7326 * because that is identical with infinity. 7327 * 7328 * Moreover, whether there is any behavioral difference 7329 * between quiet and signaling NaNs, depends on the platform. 7330 * 7331 * x86 80-bit extended precision is different, the mantissa bits: 7332 * 7333 * 63 62 61 30387+ pre-387 visual c 7334 * -------- ---- -------- -------- 7335 * 0 0 0 invalid infinity 7336 * 0 0 1 invalid snan 7337 * 0 1 0 invalid snan 7338 * 0 1 1 invalid snan 7339 * 1 0 0 infinity snan 1.#INF 7340 * 1 0 1 snan 1.#SNAN 7341 * 1 1 0 qnan -1.#IND (x86 chooses this to negative) 7342 * 1 1 1 qnan 1.#QNAN 7343 * 7344 * This means that in this format there are 61 bits available 7345 * for the nan payload. 7346 * 7347 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87 7348 * simply cannot preserve the bit. You can either use the 80-bit 7349 * extended precision (long double, -Duselongdouble), or use x86-64. 7350 * 7351 * In all platforms, the payload bytes (and bits, some of them are 7352 * often in a partial byte) themselves can be either all zero (x86), 7353 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double 7354 * or in a double-double, the first half of the payload can follow the 7355 * native double, while in the second half the payload can be all 7356 * zeros. (Therefore the mask for payload bits is not necessarily 7357 * identical to bit complement of the NaN.) Another way of putting 7358 * this: the payload for the default NaN might not be zero. 7359 * 7360 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits 7361 * being 'packaged' in either 12 or 16 bytes) can be whatever random 7362 * garbage. 7363 * 7364 * Furthermore, the semantics of the sign bit on NaNs are platform-specific. 7365 * On normal floats, the sign bit being on means negative. But this may, 7366 * or may not, be reverted on NaNs: in other words, the default NaN might 7367 * have the sign bit on, and therefore look like negative if you look 7368 * at it at the bit level. 7369 * 7370 * NaN payloads are not propagated even on copies, or in arithmetics. 7371 * They *might* be, according to some rules, on your particular 7372 * cpu/os/compiler/libraries, but no guarantees. 7373 * 7374 * To summarize, on most platforms, and for 64-bit doubles 7375 * (using big-endian ordering here): 7376 * 7377 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet 7378 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet 7379 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling 7380 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling 7381 * 7382 * The C99 nan() is supposed to generate *quiet* NaNs. 7383 * 7384 * Note the asymmetry: 7385 * The 7FF0000000000000 is positive infinity, 7386 * the FFF0000000000000 is negative infinity. 7387 */ 7388 7389 /* NVMANTBITS is the number of _real_ mantissa bits in an NV. 7390 * For the standard IEEE 754 fp this number is usually one less that 7391 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't 7392 * real. For the 80-bit extended precision formats (x86*), the number 7393 * of mantissa bits... depends. For normal floats, it's 64. But for 7394 * the inf/nan, it's different (zero for inf, 61 for nan). 7395 * NVMANTBITS works for normal floats. */ 7396 7397 /* We do not want to include the quiet/signaling bit. */ 7398 #define NV_NAN_BITS (NVMANTBITS - 1) 7399 7400 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE 7401 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7402 # define NV_NAN_QS_BYTE_OFFSET 13 7403 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7404 # define NV_NAN_QS_BYTE_OFFSET 2 7405 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN 7406 # define NV_NAN_QS_BYTE_OFFSET 7 7407 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 7408 # define NV_NAN_QS_BYTE_OFFSET 2 7409 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 7410 # define NV_NAN_QS_BYTE_OFFSET 13 7411 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 7412 # define NV_NAN_QS_BYTE_OFFSET 1 7413 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE 7414 # define NV_NAN_QS_BYTE_OFFSET 9 7415 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7416 # define NV_NAN_QS_BYTE_OFFSET 6 7417 # else 7418 # error "Unexpected long double format" 7419 # endif 7420 #else 7421 # ifdef USE_QUADMATH 7422 # ifdef NV_LITTLE_ENDIAN 7423 # define NV_NAN_QS_BYTE_OFFSET 13 7424 # elif defined(NV_BIG_ENDIAN) 7425 # define NV_NAN_QS_BYTE_OFFSET 2 7426 # else 7427 # error "Unexpected quadmath format" 7428 # endif 7429 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN 7430 # define NV_NAN_QS_BYTE_OFFSET 2 7431 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN 7432 # define NV_NAN_QS_BYTE_OFFSET 1 7433 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN 7434 # define NV_NAN_QS_BYTE_OFFSET 6 7435 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN 7436 # define NV_NAN_QS_BYTE_OFFSET 1 7437 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7438 # define NV_NAN_QS_BYTE_OFFSET 13 7439 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7440 # define NV_NAN_QS_BYTE_OFFSET 2 7441 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE 7442 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */ 7443 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 7444 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */ 7445 # else 7446 /* For example the VAX formats should never 7447 * get here because they do not have NaN. */ 7448 # error "Unexpected double format" 7449 # endif 7450 #endif 7451 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */ 7452 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET]) 7453 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET 7454 * for the quiet/signaling */ 7455 #if defined(USE_LONG_DOUBLE) && \ 7456 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 7457 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN) 7458 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */ 7459 #elif defined(USE_LONG_DOUBLE) && \ 7460 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \ 7461 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \ 7462 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 7463 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE) 7464 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */ 7465 #else 7466 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */ 7467 #endif 7468 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT)) 7469 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV 7470 * (bytes ordered big-endianly) for the quiet/signaling bit 7471 * for the quiet/signaling */ 7472 #define NV_NAN_QS_BIT_OFFSET \ 7473 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT)) 7474 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being 7475 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined) 7476 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */ 7477 #define NV_NAN_QS_QUIET \ 7478 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT) 7479 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET)) 7480 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT) 7481 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN, 7482 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN. 7483 * Note however that these do not check whether the nvp is a NaN. */ 7484 #define NV_NAN_IS_QUIET(nvp) \ 7485 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0)) 7486 #define NV_NAN_IS_SIGNALING(nvp) \ 7487 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT)) 7488 #define NV_NAN_SET_QUIET(nvp) \ 7489 (NV_NAN_QS_QUIET ? \ 7490 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \ 7491 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT)) 7492 #define NV_NAN_SET_SIGNALING(nvp) \ 7493 (NV_NAN_QS_QUIET ? \ 7494 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \ 7495 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT)) 7496 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT) 7497 7498 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits. 7499 * 7500 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes. 7501 * 0xFF means "don't go here".*/ 7502 7503 /* Shorthands to avoid typoses. */ 7504 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \ 7505 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 7506 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \ 7507 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7508 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \ 7509 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7 7510 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \ 7511 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0 7512 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \ 7513 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7514 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00 7515 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \ 7516 NV_NAN_PAYLOAD_PERM_0_TO_7, \ 7517 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF 7518 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \ 7519 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7520 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7521 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \ 7522 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \ 7523 NV_NAN_PAYLOAD_PERM_7_TO_0 7524 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \ 7525 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00 7526 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \ 7527 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF 7528 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \ 7529 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7530 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \ 7531 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0 7532 7533 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE 7534 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7535 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 7536 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 7537 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7538 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 7539 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 7540 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN 7541 # if LONG_DOUBLESIZE == 10 7542 # define NV_NAN_PAYLOAD_MASK \ 7543 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7544 0x00, 0x00 7545 # define NV_NAN_PAYLOAD_PERM \ 7546 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF 7547 # elif LONG_DOUBLESIZE == 12 7548 # define NV_NAN_PAYLOAD_MASK \ 7549 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7550 0x00, 0x00, 0x00, 0x00 7551 # define NV_NAN_PAYLOAD_PERM \ 7552 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF 7553 # elif LONG_DOUBLESIZE == 16 7554 # define NV_NAN_PAYLOAD_MASK \ 7555 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7556 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 7557 # define NV_NAN_PAYLOAD_PERM \ 7558 NV_NAN_PAYLOAD_PERM_0_TO_7, \ 7559 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF 7560 # else 7561 # error "Unexpected x86 80-bit little-endian long double format" 7562 # endif 7563 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 7564 # if LONG_DOUBLESIZE == 10 7565 # define NV_NAN_PAYLOAD_MASK \ 7566 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7567 0xff, 0xff 7568 # define NV_NAN_PAYLOAD_PERM \ 7569 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF 7570 # elif LONG_DOUBLESIZE == 12 7571 # define NV_NAN_PAYLOAD_MASK \ 7572 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7573 0xff, 0xff, 0x00, 0x00 7574 # define NV_NAN_PAYLOAD_PERM \ 7575 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF 7576 # elif LONG_DOUBLESIZE == 16 7577 # define NV_NAN_PAYLOAD_MASK \ 7578 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7579 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 7580 # define NV_NAN_PAYLOAD_PERM \ 7581 NV_NAN_PAYLOAD_PERM_7_TO_0, \ 7582 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF 7583 # else 7584 # error "Unexpected x86 80-bit big-endian long double format" 7585 # endif 7586 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 7587 /* For double-double we assume only the first double (in LE or BE terms) 7588 * is used for NaN. */ 7589 # define NV_NAN_PAYLOAD_MASK \ 7590 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 7591 # define NV_NAN_PAYLOAD_PERM \ 7592 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 7593 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 7594 # define NV_NAN_PAYLOAD_MASK \ 7595 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 7596 # define NV_NAN_PAYLOAD_PERM \ 7597 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 7598 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE 7599 # define NV_NAN_PAYLOAD_MASK \ 7600 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 7601 # define NV_NAN_PAYLOAD_PERM \ 7602 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 7603 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7604 # define NV_NAN_PAYLOAD_MASK \ 7605 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 7606 # define NV_NAN_PAYLOAD_PERM \ 7607 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 7608 # else 7609 # error "Unexpected long double format" 7610 # endif 7611 #else 7612 # ifdef USE_QUADMATH /* quadmath is not long double */ 7613 # ifdef NV_LITTLE_ENDIAN 7614 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 7615 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 7616 # elif defined(NV_BIG_ENDIAN) 7617 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 7618 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 7619 # else 7620 # error "Unexpected quadmath format" 7621 # endif 7622 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN 7623 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00 7624 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF 7625 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN 7626 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff 7627 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0 7628 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN 7629 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 7630 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 7631 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN 7632 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 7633 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 7634 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7635 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 7636 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 7637 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7638 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 7639 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 7640 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE 7641 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff 7642 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3 7643 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 7644 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff 7645 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4 7646 # else 7647 # error "Unexpected double format" 7648 # endif 7649 #endif 7650 7651 #endif /* DOUBLE_HAS_NAN */ 7652 7653 7654 /* 7655 7656 (KEEP THIS LAST IN perl.h!) 7657 7658 Mention 7659 7660 NV_PRESERVES_UV 7661 7662 HAS_MKSTEMP 7663 HAS_MKSTEMPS 7664 HAS_MKDTEMP 7665 7666 HAS_GETCWD 7667 7668 HAS_MMAP 7669 HAS_MPROTECT 7670 HAS_MSYNC 7671 HAS_MADVISE 7672 HAS_MUNMAP 7673 I_SYSMMAN 7674 Mmap_t 7675 7676 NVef 7677 NVff 7678 NVgf 7679 7680 HAS_UALARM 7681 HAS_USLEEP 7682 7683 HAS_SETITIMER 7684 HAS_GETITIMER 7685 7686 HAS_SENDMSG 7687 HAS_RECVMSG 7688 HAS_READV 7689 HAS_WRITEV 7690 I_SYSUIO 7691 HAS_STRUCT_MSGHDR 7692 HAS_STRUCT_CMSGHDR 7693 7694 HAS_NL_LANGINFO 7695 7696 HAS_DIRFD 7697 7698 so that Configure picks them up. 7699 7700 (KEEP THIS LAST IN perl.h!) 7701 7702 */ 7703 7704 #endif /* Include guard */ 7705 7706 /* 7707 * ex: set ts=8 sts=4 sw=4 et: 7708 */ 7709