1 // SPDX-License-Identifier: GPL-3.0-or-later 2 /* Definitions of target machine for GNU compiler, 3 for IBM RS/6000 POWER running AIX V7.3. 4 Copyright (C) 2002-2022 Free Software Foundation, Inc. 5 Contributed by David Edelsohn (edelsohn@gnu.org). 6 7 This file is part of GCC. 8 9 GCC is free software; you can redistribute it and/or modify it 10 under the terms of the GNU General Public License as published 11 by the Free Software Foundation; either version 3, or (at your 12 option) any later version. 13 14 GCC is distributed in the hope that it will be useful, but WITHOUT 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 17 License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with GCC; see the file COPYING3. If not see 21 <http://www.gnu.org/licenses/>. */ 22 23 /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to 24 get control in TARGET_OPTION_OVERRIDE. */ 25 26 #define SUBTARGET_OVERRIDE_OPTIONS \ 27 do { \ 28 if (TARGET_64BIT && ! TARGET_POWERPC64) \ 29 { \ 30 rs6000_isa_flags |= OPTION_MASK_POWERPC64; \ 31 warning (0, "%<-maix64%> requires PowerPC64 architecture remain enabled"); \ 32 } \ 33 if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \ 34 { \ 35 rs6000_long_double_type_size = 64; \ 36 if (OPTION_SET_P (rs6000_long_double_type_size)) \ 37 warning (0, "%<soft-float%> and long-double-128 are incompatible"); \ 38 } \ 39 if (TARGET_POWERPC64 && ! TARGET_64BIT) \ 40 { \ 41 error ("%<-maix64%> required: 64-bit computation with 32-bit addressing not yet supported"); \ 42 } \ 43 if ((rs6000_isa_flags_explicit \ 44 & OPTION_MASK_MINIMAL_TOC) != 0) \ 45 { \ 46 if (OPTION_SET_P (rs6000_current_cmodel) \ 47 && rs6000_current_cmodel != CMODEL_SMALL) \ 48 error ("%<-mcmodel%> incompatible with other toc options"); \ 49 SET_CMODEL (CMODEL_SMALL); \ 50 } \ 51 if (rs6000_current_cmodel != CMODEL_SMALL) \ 52 { \ 53 TARGET_NO_FP_IN_TOC = 1; \ 54 TARGET_NO_SUM_IN_TOC = 1; \ 55 } \ 56 if (rs6000_current_cmodel == CMODEL_MEDIUM) \ 57 { \ 58 rs6000_current_cmodel = CMODEL_LARGE; \ 59 } \ 60 if (! strcmp (lang_hooks.name, "GNU Go") \ 61 && TARGET_32BIT) \ 62 { \ 63 /* aix/ppc doesn't support -mvsx and -maltivec with Go */ \ 64 rs6000_isa_flags &= ~(OPTION_MASK_VSX | OPTION_MASK_ALTIVEC); \ 65 } \ 66 if (!OPTION_SET_P (dwarf_version)) \ 67 /* AIX only supports DWARF 4. */ \ 68 dwarf_version = 4; \ 69 } while (0) 70 71 #define ASM_SPEC32 "-a32" 72 #define ASM_SPEC64 "-a64" 73 #define ASM_SPEC_COMMON "-u %(asm_cpu)" 74 75 /* Common ASM definitions used by ASM_SPEC amongst the various targets for 76 handling -mcpu=xxx switches. There is a parallel list in driver-rs6000.cc to 77 provide the default assembler options if the user uses -mcpu=native, so if 78 you make changes here, make them there also. */ 79 #undef ASM_CPU_SPEC 80 #define ASM_CPU_SPEC \ 81 "%{mcpu=native: %(asm_cpu_native); \ 82 mcpu=power10: -mpwr10; \ 83 mcpu=power9: -mpwr9; \ 84 mcpu=power8: -mpwr8; \ 85 mcpu=power7: -mpwr7; \ 86 mcpu=power6x|mcpu=power6: -mpwr6; \ 87 mcpu=power5+: -mpwr5x; \ 88 mcpu=power5: -mpwr5; \ 89 mcpu=power4: -mpwr4; \ 90 mcpu=power3: -m620; \ 91 mcpu=powerpc: -mppc; \ 92 mcpu=rs64: -mppc; \ 93 mcpu=603: -m603; \ 94 mcpu=603e: -m603; \ 95 mcpu=604: -m604; \ 96 mcpu=604e: -m604; \ 97 mcpu=620: -m620; \ 98 mcpu=630: -m620; \ 99 mcpu=970|mcpu=G5: -m970; \ 100 !mcpu*: %(asm_default)} \ 101 -many" 102 103 #undef ASM_DEFAULT_SPEC 104 #define ASM_DEFAULT_SPEC "-mpwr7" 105 106 #undef TARGET_OS_CPP_BUILTINS 107 #define TARGET_OS_CPP_BUILTINS() \ 108 do \ 109 { \ 110 builtin_define ("_AIX43"); \ 111 builtin_define ("_AIX51"); \ 112 builtin_define ("_AIX52"); \ 113 builtin_define ("_AIX53"); \ 114 builtin_define ("_AIX61"); \ 115 builtin_define ("_AIX71"); \ 116 builtin_define ("_AIX72"); \ 117 builtin_define ("_AIX73"); \ 118 TARGET_OS_AIX_CPP_BUILTINS (); \ 119 } \ 120 while (0) 121 122 #define CPP_SPEC32 "" 123 #define CPP_SPEC64 "-D__64BIT__" 124 #define CPP_SPEC_COMMON "%{posix: -D_POSIX_SOURCE} \ 125 %{ansi: -D_ANSI_C_SOURCE} \ 126 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 127 %{pthread: -D_THREAD_SAFE}" 128 129 /* The GNU C++ standard library requires that these macros be 130 defined. Synchronize with libstdc++ os_defines.h. */ 131 #define CPLUSPLUS_CPP_SPEC_COMMON \ 132 "-D_ALL_SOURCE -D__COMPATMATH__ \ 133 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 134 %{pthread: -D_THREAD_SAFE}" 135 136 #define RS6000_CPU(NAME, CPU, FLAGS) 137 #include "rs6000-cpus.def" 138 #undef RS6000_CPU 139 140 #undef TARGET_DEFAULT 141 #ifdef RS6000_BI_ARCH 142 #define TARGET_DEFAULT (ISA_2_6_MASKS_EMBEDDED | MASK_POWERPC64 | MASK_64BIT) 143 #else 144 #define TARGET_DEFAULT ISA_2_6_MASKS_EMBEDDED 145 #endif 146 147 #undef PROCESSOR_DEFAULT 148 #define PROCESSOR_DEFAULT PROCESSOR_POWER7 149 #undef PROCESSOR_DEFAULT64 150 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7 151 152 /* AIX 7.2 kernel and assembler have necessary support for Altivec and VSX. */ 153 #undef OS_MISSING_ALTIVEC 154 155 /* Define this macro as a C expression for the initializer of an 156 array of string to tell the driver program which options are 157 defaults for this target and thus do not need to be handled 158 specially when using `MULTILIB_OPTIONS'. 159 160 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 161 the target makefile fragment or if none of the options listed in 162 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 163 164 #undef MULTILIB_DEFAULTS 165 166 #define DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT) 167 168 #define LIB_SPEC32 "%{!shared:%{g*:-lg}}" 169 #define LIB_SPEC64 "" 170 #define LIB_SPEC_COMMON "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 171 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 172 %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\ 173 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 174 %{mlong-double-128:-lc128}\ 175 %{pthread:-lpthreads} -lc" 176 177 #define LINK_SPEC32 "%{!shared:%{g*: %(link_libg) }} -b32" 178 #define LINK_SPEC64 "-b64" 179 #define LINK_SPEC_COMMON "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\ 180 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 181 %{mpe:-binitfini:poe_remote_main} " 182 183 #undef STARTFILE_SPEC 184 #if DEFAULT_ARCH64_P 185 #define STARTFILE_SPEC "%{!shared:\ 186 %{!maix32:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\ 187 %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\ 188 %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\ 189 %{!maix32:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\ 190 %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}" 191 #else 192 #define STARTFILE_SPEC "%{!shared:\ 193 %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\ 194 %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\ 195 %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\ 196 %{maix64:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\ 197 %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}" 198 #endif 199 200 201 #undef ASM_SPEC 202 #undef CPP_SPEC 203 #undef CPLUSPLUS_CPP_SPEC 204 #undef LIB_SPEC 205 #undef LINK_SPEC 206 207 #if DEFAULT_ARCH64_P 208 #define ASM_SPEC "%{maix32:%(asm_spec32);:%(asm_spec64)} %(asm_spec_common)" 209 #define CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cpp_spec_common)" 210 #define CPLUSPLUS_CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cplusplus_cpp_spec_common)" 211 #define LIB_SPEC "%{maix32:%(lib_spec32);:%(lib_spec64)} %(lib_spec_common)" 212 #define LINK_SPEC "%{maix32:%(link_spec32);:%(link_spec64)} %(link_spec_common)" 213 #else 214 #define ASM_SPEC "%{maix64:%(asm_spec64);:%(asm_spec32)} %(asm_spec_common)" 215 #define CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cpp_spec_common)" 216 #define CPLUSPLUS_CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cplusplus_cpp_spec_common)" 217 #define LIB_SPEC "%{maix64:%(lib_spec64);:%(lib_spec32)} %(lib_spec_common)" 218 #define LINK_SPEC "%{maix64:%(link_spec64);:%(link_spec32)} %(link_spec_common)" 219 #endif 220 221 #undef SUBTARGET_EXTRA_SPECS 222 #define SUBTARGET_EXTRA_SPECS \ 223 { "asm_spec_common", ASM_SPEC_COMMON }, \ 224 { "asm_spec32", ASM_SPEC32 }, \ 225 { "asm_spec64", ASM_SPEC64 }, \ 226 { "cpp_spec_common", CPP_SPEC_COMMON }, \ 227 { "cplusplus_cpp_spec_common", CPLUSPLUS_CPP_SPEC_COMMON }, \ 228 { "cpp_spec32", CPP_SPEC32 }, \ 229 { "cpp_spec64", CPP_SPEC64 }, \ 230 { "lib_spec_common", LIB_SPEC_COMMON }, \ 231 { "lib_spec32", LIB_SPEC32 }, \ 232 { "lib_spec64", LIB_SPEC64 }, \ 233 { "link_spec_common", LINK_SPEC_COMMON }, \ 234 { "link_spec32", LINK_SPEC32 }, \ 235 { "link_spec64", LINK_SPEC64 }, 236 237 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 238 239 #undef PTRDIFF_TYPE 240 #define PTRDIFF_TYPE "long int" 241 242 /* Type used for wchar_t, as a string used in a declaration. */ 243 #undef WCHAR_TYPE 244 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") 245 246 /* Width of wchar_t in bits. */ 247 #undef WCHAR_TYPE_SIZE 248 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) 249 250 /* AIX 4.2 and above provides initialization and finalization function 251 support from linker command line. */ 252 #undef HAS_INIT_SECTION 253 #define HAS_INIT_SECTION 254 255 #undef LD_INIT_SWITCH 256 #define LD_INIT_SWITCH "-binitfini" 257 258 #ifndef _AIX52 259 extern long long int atoll(const char *); 260 #endif 261 262 /* This target uses the aix64.opt file. */ 263 #define TARGET_USES_AIX64_OPT 1 264 265 /* Large TOC Support */ 266 #ifdef HAVE_LD_LARGE_TOC 267 #undef TARGET_CMODEL 268 #define TARGET_CMODEL rs6000_current_cmodel 269 #define SET_CMODEL(opt) rs6000_current_cmodel = opt 270 #else 271 #define SET_CMODEL(opt) do {} while (0) 272 #endif 273 274 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, 275 but does not have crtbegin/end. */ 276 277 #define TARGET_AIX_VERSION 73 278 279 /* AIX 7.2 supports DWARF3+ debugging. */ 280 #define DWARF2_DEBUGGING_INFO 1 281 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG 282 #define DEBUG_INFO_SECTION "0x10000" 283 #define DEBUG_LINE_SECTION "0x20000" 284 #define DEBUG_PUBNAMES_SECTION "0x30000" 285 #define DEBUG_PUBTYPES_SECTION "0x40000" 286 #define DEBUG_ARANGES_SECTION "0x50000" 287 #define DEBUG_ABBREV_SECTION "0x60000" 288 #define DEBUG_STR_SECTION "0x70000" 289 #define DEBUG_RANGES_SECTION "0x80000" 290 #define DEBUG_LOC_SECTION "0x90000" 291 #define DEBUG_FRAME_SECTION "0xA0000" 292 #define DEBUG_MACINFO_SECTION "0xB0000" 293 #define DEBUG_MACRO_SECTION "0xB0000" 294 295