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 V7.1. 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 "-mpwr4" 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 TARGET_OS_AIX_CPP_BUILTINS (); \ 117 } \ 118 while (0) 119 120 #define CPP_SPEC32 "" 121 #define CPP_SPEC64 "-D__64BIT__" 122 #define CPP_SPEC_COMMON "%{posix: -D_POSIX_SOURCE} \ 123 %{ansi: -D_ANSI_C_SOURCE} \ 124 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 125 %{pthread: -D_THREAD_SAFE}" 126 127 /* The GNU C++ standard library requires that these macros be 128 defined. Synchronize with libstdc++ os_defines.h. */ 129 #define CPLUSPLUS_CPP_SPEC_COMMON \ 130 "-D_ALL_SOURCE -D__COMPATMATH__ \ 131 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 132 %{pthread: -D_THREAD_SAFE}" 133 134 #define RS6000_CPU(NAME, CPU, FLAGS) 135 #include "rs6000-cpus.def" 136 #undef RS6000_CPU 137 138 #undef TARGET_DEFAULT 139 #ifdef RS6000_BI_ARCH 140 #define TARGET_DEFAULT (MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF | MASK_POWERPC64 | MASK_64BIT) 141 #else 142 #define TARGET_DEFAULT (MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF) 143 #endif 144 145 #undef PROCESSOR_DEFAULT 146 #define PROCESSOR_DEFAULT PROCESSOR_POWER7 147 #undef PROCESSOR_DEFAULT64 148 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7 149 150 /* AIX 7.1 kernel and assembler have necessary support for Altivec and VSX. */ 151 #undef OS_MISSING_ALTIVEC 152 153 /* Define this macro as a C expression for the initializer of an 154 array of string to tell the driver program which options are 155 defaults for this target and thus do not need to be handled 156 specially when using `MULTILIB_OPTIONS'. 157 158 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 159 the target makefile fragment or if none of the options listed in 160 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 161 162 #undef MULTILIB_DEFAULTS 163 164 #define DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT) 165 166 #define LIB_SPEC32 "%{!shared:%{g*:-lg}}" 167 #define LIB_SPEC64 "" 168 #define LIB_SPEC_COMMON "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 169 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 170 %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\ 171 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 172 %{mlong-double-128:-lc128}\ 173 %{pthread:-lpthreads} -lc" 174 175 #define LINK_SPEC32 "%{!shared:%{g*: %(link_libg) }} -b32" 176 #define LINK_SPEC64 "-b64" 177 #define LINK_SPEC_COMMON "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\ 178 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 179 %{mpe:-binitfini:poe_remote_main} " 180 181 #undef STARTFILE_SPEC 182 #if DEFAULT_ARCH64_P 183 #define STARTFILE_SPEC "%{!shared:\ 184 %{!maix32:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\ 185 %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\ 186 %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\ 187 %{!maix32:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\ 188 %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}" 189 #else 190 #define STARTFILE_SPEC "%{!shared:\ 191 %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\ 192 %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\ 193 %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\ 194 %{maix64:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\ 195 %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}" 196 #endif 197 198 199 #undef ASM_SPEC 200 #undef CPP_SPEC 201 #undef CPLUSPLUS_CPP_SPEC 202 #undef LIB_SPEC 203 #undef LINK_SPEC 204 205 #if DEFAULT_ARCH64_P 206 #define ASM_SPEC "%{maix32:%(asm_spec32);:%(asm_spec64)} %(asm_spec_common)" 207 #define CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cpp_spec_common)" 208 #define CPLUSPLUS_CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cplusplus_cpp_spec_common)" 209 #define LIB_SPEC "%{maix32:%(lib_spec32);:%(lib_spec64)} %(lib_spec_common)" 210 #define LINK_SPEC "%{maix32:%(link_spec32);:%(link_spec64)} %(link_spec_common)" 211 #else 212 #define ASM_SPEC "%{maix64:%(asm_spec64);:%(asm_spec32)} %(asm_spec_common)" 213 #define CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cpp_spec_common)" 214 #define CPLUSPLUS_CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cplusplus_cpp_spec_common)" 215 #define LIB_SPEC "%{maix64:%(lib_spec64);:%(lib_spec32)} %(lib_spec_common)" 216 #define LINK_SPEC "%{maix64:%(link_spec64);:%(link_spec32)} %(link_spec_common)" 217 #endif 218 219 #undef SUBTARGET_EXTRA_SPECS 220 #define SUBTARGET_EXTRA_SPECS \ 221 { "asm_spec_common", ASM_SPEC_COMMON }, \ 222 { "asm_spec32", ASM_SPEC32 }, \ 223 { "asm_spec64", ASM_SPEC64 }, \ 224 { "cpp_spec_common", CPP_SPEC_COMMON }, \ 225 { "cplusplus_cpp_spec_common", CPLUSPLUS_CPP_SPEC_COMMON }, \ 226 { "cpp_spec32", CPP_SPEC32 }, \ 227 { "cpp_spec64", CPP_SPEC64 }, \ 228 { "lib_spec_common", LIB_SPEC_COMMON }, \ 229 { "lib_spec32", LIB_SPEC32 }, \ 230 { "lib_spec64", LIB_SPEC64 }, \ 231 { "link_spec_common", LINK_SPEC_COMMON }, \ 232 { "link_spec32", LINK_SPEC32 }, \ 233 { "link_spec64", LINK_SPEC64 }, 234 235 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 236 237 #undef PTRDIFF_TYPE 238 #define PTRDIFF_TYPE "long int" 239 240 /* Type used for wchar_t, as a string used in a declaration. */ 241 #undef WCHAR_TYPE 242 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") 243 244 /* Width of wchar_t in bits. */ 245 #undef WCHAR_TYPE_SIZE 246 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) 247 248 /* AIX 4.2 and above provides initialization and finalization function 249 support from linker command line. */ 250 #undef HAS_INIT_SECTION 251 #define HAS_INIT_SECTION 252 253 #undef LD_INIT_SWITCH 254 #define LD_INIT_SWITCH "-binitfini" 255 256 #ifndef _AIX52 257 extern long long int atoll(const char *); 258 #endif 259 260 /* This target uses the aix64.opt file. */ 261 #define TARGET_USES_AIX64_OPT 1 262 263 /* Large TOC Support */ 264 #ifdef HAVE_LD_LARGE_TOC 265 #undef TARGET_CMODEL 266 #define TARGET_CMODEL rs6000_current_cmodel 267 #define SET_CMODEL(opt) rs6000_current_cmodel = opt 268 #else 269 #define SET_CMODEL(opt) do {} while (0) 270 #endif 271 272 /* System headers are not C++-aware. */ 273 #define SYSTEM_IMPLICIT_EXTERN_C 1 274 275 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, 276 but does not have crtbegin/end. */ 277 278 #define TARGET_AIX_VERSION 71 279 280 /* AIX 7.1 supports DWARF3+ debugging. */ 281 #define DWARF2_DEBUGGING_INFO 1 282 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG 283 #define DEBUG_INFO_SECTION "0x10000" 284 #define DEBUG_LINE_SECTION "0x20000" 285 #define DEBUG_PUBNAMES_SECTION "0x30000" 286 #define DEBUG_PUBTYPES_SECTION "0x40000" 287 #define DEBUG_ARANGES_SECTION "0x50000" 288 #define DEBUG_ABBREV_SECTION "0x60000" 289 #define DEBUG_STR_SECTION "0x70000" 290 #define DEBUG_RANGES_SECTION "0x80000" 291 #define DEBUG_LOC_SECTION "0x90000" 292 #define DEBUG_FRAME_SECTION "0xA0000" 293 #define DEBUG_MACINFO_SECTION "0xB0000" 294 #define DEBUG_MACRO_SECTION "0xB0000" 295 296