gcc/config/rs6000/aix72.h

   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 V7.2.
   4    Copyright (C) 2002-2024 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       TARGET_OS_AIX_CPP_BUILTINS (); \
 118     }                                \
 119   while (0)
 120
 121 #define CPP_SPEC32 ""
 122 #define CPP_SPEC64 "-D__64BIT__"
 123 #define CPP_SPEC_COMMON "%{posix: -D_POSIX_SOURCE} \
 124   %{ansi: -D_ANSI_C_SOURCE}                     \
 125   %{mpe: -I%R/usr/lpp/ppe.poe/include}          \
 126   %{pthread: -D_THREAD_SAFE}"
 127
 128 /* The GNU C++ standard library requires that these macros be
 129    defined.  Synchronize with libstdc++ os_defines.h.  */
 130 #define CPLUSPLUS_CPP_SPEC_COMMON               \
 131   "-D_ALL_SOURCE -D__COMPATMATH__               \
 132    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
 133    %{pthread: -D_THREAD_SAFE}"
 134
 135 #define RS6000_CPU(NAME, CPU, FLAGS)
 136 #include "rs6000-cpus.def"
 137 #undef RS6000_CPU
 138
 139 #undef  TARGET_DEFAULT
 140 #ifdef RS6000_BI_ARCH
 141 #define TARGET_DEFAULT (ISA_2_6_MASKS_SERVER | MASK_POWERPC64 | MASK_64BIT)
 142 #else
 143 #define TARGET_DEFAULT ISA_2_6_MASKS_SERVER
 144 #endif
 145
 146 #undef  PROCESSOR_DEFAULT
 147 #define PROCESSOR_DEFAULT PROCESSOR_POWER7
 148 #undef  PROCESSOR_DEFAULT64
 149 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
 150
 151 /* AIX 7.2 kernel and assembler have necessary support for Altivec and VSX.  */
 152 #undef OS_MISSING_ALTIVEC
 153
 154 /* Define this macro as a C expression for the initializer of an
 155    array of string to tell the driver program which options are
 156    defaults for this target and thus do not need to be handled
 157    specially when using `MULTILIB_OPTIONS'.
 158
 159    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 160    the target makefile fragment or if none of the options listed in
 161    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 162
 163 #undef MULTILIB_DEFAULTS
 164
 165 #define DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT)
 166
 167 #define LIB_SPEC32 "%{!shared:%{g*:-lg}}"
 168 #define LIB_SPEC64 ""
 169 #define LIB_SPEC_COMMON "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 170    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 171    %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\
 172    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 173    %{mlong-double-128:-lc128}\
 174    %{pthread:-lpthreads} -lc"
 175
 176 #define LINK_SPEC32 "%{!shared:%{g*: %(link_libg) }} -b32"
 177 #define LINK_SPEC64 "-b64"
 178 #define LINK_SPEC_COMMON "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
 179    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 180    %{mpe:-binitfini:poe_remote_main} "
 181
 182 #undef STARTFILE_SPEC
 183 #if DEFAULT_ARCH64_P
 184 #define STARTFILE_SPEC "%{!shared:\
 185    %{!maix32:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\
 186      %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\
 187        %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\
 188    %{!maix32:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\
 189      %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}"
 190 #else
 191 #define STARTFILE_SPEC "%{!shared:\
 192    %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\
 193      %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\
 194        %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\
 195    %{maix64:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\
 196      %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}"
 197 #endif
 198
 199
 200 #undef ASM_SPEC
 201 #undef CPP_SPEC
 202 #undef CPLUSPLUS_CPP_SPEC
 203 #undef LIB_SPEC
 204 #undef LINK_SPEC
 205
 206 #if DEFAULT_ARCH64_P
 207 #define ASM_SPEC "%{maix32:%(asm_spec32);:%(asm_spec64)} %(asm_spec_common)"
 208 #define CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cpp_spec_common)"
 209 #define CPLUSPLUS_CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cplusplus_cpp_spec_common)"
 210 #define LIB_SPEC "%{maix32:%(lib_spec32);:%(lib_spec64)} %(lib_spec_common)"
 211 #define LINK_SPEC "%{maix32:%(link_spec32);:%(link_spec64)} %(link_spec_common)"
 212 #else
 213 #define ASM_SPEC "%{maix64:%(asm_spec64);:%(asm_spec32)} %(asm_spec_common)"
 214 #define CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cpp_spec_common)"
 215 #define CPLUSPLUS_CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cplusplus_cpp_spec_common)"
 216 #define LIB_SPEC "%{maix64:%(lib_spec64);:%(lib_spec32)} %(lib_spec_common)"
 217 #define LINK_SPEC "%{maix64:%(link_spec64);:%(link_spec32)} %(link_spec_common)"
 218 #endif
 219
 220 #undef SUBTARGET_EXTRA_SPECS
 221 #define SUBTARGET_EXTRA_SPECS                                   \
 222   { "asm_spec_common",          ASM_SPEC_COMMON },              \
 223   { "asm_spec32",               ASM_SPEC32 },                   \
 224   { "asm_spec64",               ASM_SPEC64 },                   \
 225   { "cpp_spec_common",          CPP_SPEC_COMMON },              \
 226   { "cplusplus_cpp_spec_common", CPLUSPLUS_CPP_SPEC_COMMON },   \
 227   { "cpp_spec32",               CPP_SPEC32 },                   \
 228   { "cpp_spec64",               CPP_SPEC64 },                   \
 229   { "lib_spec_common",          LIB_SPEC_COMMON },              \
 230   { "lib_spec32",               LIB_SPEC32 },                   \
 231   { "lib_spec64",               LIB_SPEC64 },                   \
 232   { "link_spec_common",         LINK_SPEC_COMMON },             \
 233   { "link_spec32",              LINK_SPEC32 },                  \
 234   { "link_spec64",              LINK_SPEC64 },
 235
 236 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 237
 238 #undef PTRDIFF_TYPE
 239 #define PTRDIFF_TYPE "long int"
 240
 241 /* Type used for wchar_t, as a string used in a declaration.  */
 242 #undef  WCHAR_TYPE
 243 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 244
 245 /* Width of wchar_t in bits.  */
 246 #undef  WCHAR_TYPE_SIZE
 247 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 248
 249 /* AIX 4.2 and above provides initialization and finalization function
 250    support from linker command line.  */
 251 #undef HAS_INIT_SECTION
 252 #define HAS_INIT_SECTION
 253
 254 #undef LD_INIT_SWITCH
 255 #define LD_INIT_SWITCH "-binitfini"
 256
 257 #ifndef _AIX52
 258 extern long long int    atoll(const char *);
 259 #endif
 260
 261 /* This target uses the aix64.opt file.  */
 262 #define TARGET_USES_AIX64_OPT 1
 263
 264 /* Large TOC Support */
 265 #ifdef HAVE_LD_LARGE_TOC
 266 #undef TARGET_CMODEL
 267 #define TARGET_CMODEL rs6000_current_cmodel
 268 #define SET_CMODEL(opt) rs6000_current_cmodel = opt
 269 #else
 270 #define SET_CMODEL(opt) do {} while (0)
 271 #endif
 272
 273 /* System headers are not C++-aware.  */
 274 #define SYSTEM_IMPLICIT_EXTERN_C 1
 275
 276 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
 277    but does not have crtbegin/end.  */
 278
 279 #define TARGET_AIX_VERSION 72
 280
 281 /* AIX 7.2 supports DWARF3+ debugging.  */
 282 #define DWARF2_DEBUGGING_INFO 1
 283 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
 284 #define DEBUG_INFO_SECTION      "0x10000"
 285 #define DEBUG_LINE_SECTION      "0x20000"
 286 #define DEBUG_PUBNAMES_SECTION  "0x30000"
 287 #define DEBUG_PUBTYPES_SECTION  "0x40000"
 288 #define DEBUG_ARANGES_SECTION   "0x50000"
 289 #define DEBUG_ABBREV_SECTION    "0x60000"
 290 #define DEBUG_STR_SECTION       "0x70000"
 291 #define DEBUG_RANGES_SECTION    "0x80000"
 292 #define DEBUG_LOC_SECTION       "0x90000"
 293 #define DEBUG_FRAME_SECTION     "0xA0000"
 294 #define DEBUG_MACINFO_SECTION   "0xB0000"
 295 #define DEBUG_MACRO_SECTION     "0xB0000"
 296