gcc/config/rs6000/aix71.h

   1 /* Definitions of target machine for GNU compiler,
   2    for IBM RS/6000 POWER running AIX V7.1.
   3    Copyright (C) 2002-2018 Free Software Foundation, Inc.
   4    Contributed by David Edelsohn (edelsohn@gnu.org).
   5
   6    This file is part of GCC.
   7
   8    GCC is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published
  10    by the Free Software Foundation; either version 3, or (at your
  11    option) any later version.
  12
  13    GCC is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GCC; see the file COPYING3.  If not see
  20    <http://www.gnu.org/licenses/>.  */
  21
  22 /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
  23    get control in TARGET_OPTION_OVERRIDE.  */
  24
  25 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
  26 do {                                                                    \
  27   if (TARGET_64BIT && ! TARGET_POWERPC64)                               \
  28     {                                                                   \
  29       rs6000_isa_flags |= OPTION_MASK_POWERPC64;                        \
  30       warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
  31     }                                                                   \
  32   if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128)                      \
  33     {                                                                   \
  34       rs6000_long_double_type_size = 64;                                \
  35       if (global_options_set.x_rs6000_long_double_type_size)            \
  36         warning (0, "soft-float and long-double-128 are incompatible"); \
  37     }                                                                   \
  38   if (TARGET_POWERPC64 && ! TARGET_64BIT)                               \
  39     {                                                                   \
  40       error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
  41     }                                                                   \
  42   if ((rs6000_isa_flags_explicit                                        \
  43        & OPTION_MASK_MINIMAL_TOC) != 0)                                 \
  44     {                                                                   \
  45       if (global_options_set.x_rs6000_current_cmodel                    \
  46           && rs6000_current_cmodel != CMODEL_SMALL)                     \
  47         error ("-mcmodel incompatible with other toc options");         \
  48       SET_CMODEL (CMODEL_SMALL);                                        \
  49     }                                                                   \
  50   if (rs6000_current_cmodel != CMODEL_SMALL)                            \
  51     {                                                                   \
  52       TARGET_NO_FP_IN_TOC = 0;                                          \
  53       TARGET_NO_SUM_IN_TOC = 0;                                         \
  54     }                                                                   \
  55   if (rs6000_current_cmodel == CMODEL_MEDIUM)                           \
  56     {                                                                   \
  57       rs6000_current_cmodel = CMODEL_LARGE;                             \
  58     }                                                                   \
  59 } while (0)
  60
  61 #undef ASM_SPEC
  62 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
  63
  64 /* Common ASM definitions used by ASM_SPEC amongst the various targets for
  65    handling -mcpu=xxx switches.  There is a parallel list in driver-rs6000.c to
  66    provide the default assembler options if the user uses -mcpu=native, so if
  67    you make changes here, make them there also.  */
  68 #undef ASM_CPU_SPEC
  69 #define ASM_CPU_SPEC \
  70 "%{!mcpu*: %{!maix64: \
  71   %{mpowerpc64: -mppc64} \
  72   %{maltivec: -m970} \
  73   %{!maltivec: %{!mpowerpc64: %(asm_default)}}}} \
  74 %{mcpu=native: %(asm_cpu_native)} \
  75 %{mcpu=power3: -m620} \
  76 %{mcpu=power4: -mpwr4} \
  77 %{mcpu=power5: -mpwr5} \
  78 %{mcpu=power5+: -mpwr5x} \
  79 %{mcpu=power6: -mpwr6} \
  80 %{mcpu=power6x: -mpwr6} \
  81 %{mcpu=power7: -mpwr7} \
  82 %{mcpu=power8: -mpwr8} \
  83 %{mcpu=power9: -mpwr9} \
  84 %{mcpu=powerpc: -mppc} \
  85 %{mcpu=rs64a: -mppc} \
  86 %{mcpu=603: -m603} \
  87 %{mcpu=603e: -m603} \
  88 %{mcpu=604: -m604} \
  89 %{mcpu=604e: -m604} \
  90 %{mcpu=620: -m620} \
  91 %{mcpu=630: -m620} \
  92 %{mcpu=970: -m970} \
  93 %{mcpu=G5: -m970} \
  94 %{mvsx: %{!mcpu*: -mpwr6}} \
  95 -many"
  96
  97 #undef  ASM_DEFAULT_SPEC
  98 #define ASM_DEFAULT_SPEC "-mpwr4"
  99
 100 #undef TARGET_OS_CPP_BUILTINS
 101 #define TARGET_OS_CPP_BUILTINS()     \
 102   do                                 \
 103     {                                \
 104       builtin_define ("_AIX43");     \
 105       builtin_define ("_AIX51");     \
 106       builtin_define ("_AIX52");     \
 107       builtin_define ("_AIX53");     \
 108       builtin_define ("_AIX61");     \
 109       builtin_define ("_AIX71");     \
 110       TARGET_OS_AIX_CPP_BUILTINS (); \
 111     }                                \
 112   while (0)
 113
 114 #undef CPP_SPEC
 115 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}     \
 116   %{ansi: -D_ANSI_C_SOURCE}                     \
 117   %{maix64: -D__64BIT__}                        \
 118   %{mpe: -I%R/usr/lpp/ppe.poe/include}          \
 119   %{pthread: -D_THREAD_SAFE}"
 120
 121 /* The GNU C++ standard library requires that these macros be
 122    defined.  Synchronize with libstdc++ os_defines.h.  */
 123 #undef CPLUSPLUS_CPP_SPEC
 124 #define CPLUSPLUS_CPP_SPEC                      \
 125   "-D_ALL_SOURCE -D__COMPATMATH__               \
 126    %{maix64: -D__64BIT__}                       \
 127    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
 128    %{pthread: -D_THREAD_SAFE}"
 129
 130 #define RS6000_CPU(NAME, CPU, FLAGS)
 131 #include "rs6000-cpus.def"
 132 #undef RS6000_CPU
 133
 134 #undef  TARGET_DEFAULT
 135 #define TARGET_DEFAULT (MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF)
 136
 137 #undef  PROCESSOR_DEFAULT
 138 #define PROCESSOR_DEFAULT PROCESSOR_POWER7
 139 #undef  PROCESSOR_DEFAULT64
 140 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
 141
 142 /* AIX 7.1 kernel and assembler have necessary support for Altivec and VSX.  */
 143 #undef OS_MISSING_ALTIVEC
 144
 145 /* Define this macro as a C expression for the initializer of an
 146    array of string to tell the driver program which options are
 147    defaults for this target and thus do not need to be handled
 148    specially when using `MULTILIB_OPTIONS'.
 149
 150    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 151    the target makefile fragment or if none of the options listed in
 152    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 153
 154 #undef  MULTILIB_DEFAULTS
 155
 156 #undef LIB_SPEC
 157 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 158    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 159    %{!maix64:%{!shared:%{g*:-lg}}}\
 160    %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\
 161    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 162    %{pthread:-lpthreads} -lc"
 163
 164 #undef LINK_SPEC
 165 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
 166    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 167    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 168    %{mpe:-binitfini:poe_remote_main}"
 169
 170 #undef STARTFILE_SPEC
 171 #define STARTFILE_SPEC "%{!shared:\
 172    %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\
 173      %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\
 174        %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\
 175    %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s"
 176
 177 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 178
 179 #undef PTRDIFF_TYPE
 180 #define PTRDIFF_TYPE "long int"
 181
 182 /* Type used for wchar_t, as a string used in a declaration.  */
 183 #undef  WCHAR_TYPE
 184 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 185
 186 /* Width of wchar_t in bits.  */
 187 #undef  WCHAR_TYPE_SIZE
 188 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 189
 190 /* AIX 4.2 and above provides initialization and finalization function
 191    support from linker command line.  */
 192 #undef HAS_INIT_SECTION
 193 #define HAS_INIT_SECTION
 194
 195 #undef LD_INIT_SWITCH
 196 #define LD_INIT_SWITCH "-binitfini"
 197
 198 #ifndef _AIX52
 199 extern long long int    atoll(const char *);
 200 #endif
 201
 202 /* This target uses the aix64.opt file.  */
 203 #define TARGET_USES_AIX64_OPT 1
 204
 205 /* Large TOC Support */
 206 #ifdef HAVE_LD_LARGE_TOC
 207 #undef TARGET_CMODEL
 208 #define TARGET_CMODEL rs6000_current_cmodel
 209 #define SET_CMODEL(opt) rs6000_current_cmodel = opt
 210 #else
 211 #define SET_CMODEL(opt) do {} while (0)
 212 #endif
 213
 214 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
 215    but does not have crtbegin/end.  */
 216
 217 #define TARGET_AIX_VERSION 71
 218
 219 /* AIX 7.1 supports DWARF3 debugging, but XCOFF remains the default.  */
 220 #define DWARF2_DEBUGGING_INFO 1
 221 #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG
 222 #define DEBUG_INFO_SECTION      "0x10000"
 223 #define DEBUG_LINE_SECTION      "0x20000"
 224 #define DEBUG_PUBNAMES_SECTION  "0x30000"
 225 #define DEBUG_PUBTYPES_SECTION  "0x40000"
 226 #define DEBUG_ARANGES_SECTION   "0x50000"
 227 #define DEBUG_ABBREV_SECTION    "0x60000"
 228 #define DEBUG_STR_SECTION       "0x70000"
 229 #define DEBUG_RANGES_SECTION    "0x80000"
 230 #define DEBUG_LOC_SECTION       "0x90000"
 231 #define DEBUG_FRAME_SECTION     "0xA0000"
 232 #define DEBUG_MACINFO_SECTION   "0xB0000"
 233 #define DEBUG_MACRO_SECTION     "0xB0000"
 234