gcc/config/rs6000/aix71.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 V7.1.
   4    Copyright (C) 2002-2023 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 (OPTION_MASK_PPC_GPOPT | OPTION_MASK_PPC_GFXOPT \
 141                         | OPTION_MASK_MFCRF | MASK_POWERPC64 | MASK_64BIT)
 142 #else
 143 #define TARGET_DEFAULT (OPTION_MASK_PPC_GPOPT | OPTION_MASK_PPC_GFXOPT \
 144                         | OPTION_MASK_MFCRF)
 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 7.1 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 /* System headers are not C++-aware.  */
 275 #define SYSTEM_IMPLICIT_EXTERN_C 1
 276
 277 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
 278    but does not have crtbegin/end.  */
 279
 280 #define TARGET_AIX_VERSION 71
 281
 282 /* AIX 7.1 supports DWARF3+ debugging.  */
 283 #define DWARF2_DEBUGGING_INFO 1
 284 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
 285 #define DEBUG_INFO_SECTION      "0x10000"
 286 #define DEBUG_LINE_SECTION      "0x20000"
 287 #define DEBUG_PUBNAMES_SECTION  "0x30000"
 288 #define DEBUG_PUBTYPES_SECTION  "0x40000"
 289 #define DEBUG_ARANGES_SECTION   "0x50000"
 290 #define DEBUG_ABBREV_SECTION    "0x60000"
 291 #define DEBUG_STR_SECTION       "0x70000"
 292 #define DEBUG_RANGES_SECTION    "0x80000"
 293 #define DEBUG_LOC_SECTION       "0x90000"
 294 #define DEBUG_FRAME_SECTION     "0xA0000"
 295 #define DEBUG_MACINFO_SECTION   "0xB0000"
 296 #define DEBUG_MACRO_SECTION     "0xB0000"
 297