gcc/config/rs6000/aix72.h

   1 /* Definitions of target machine for GNU compiler,
   2    for IBM RS/6000 POWER running AIX V7.2.
   3    Copyright (C) 2002-2017 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*: -mpwr7}} \
  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       builtin_define ("_AIX72");     \
 111       TARGET_OS_AIX_CPP_BUILTINS (); \
 112     }                                \
 113   while (0)
 114
 115 #undef CPP_SPEC
 116 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}     \
 117   %{ansi: -D_ANSI_C_SOURCE}                     \
 118   %{maix64: -D__64BIT__}                        \
 119   %{mpe: -I%R/usr/lpp/ppe.poe/include}          \
 120   %{pthread: -D_THREAD_SAFE}"
 121
 122 /* The GNU C++ standard library requires that these macros be
 123    defined.  Synchronize with libstdc++ os_defines.h.  */
 124 #undef CPLUSPLUS_CPP_SPEC
 125 #define CPLUSPLUS_CPP_SPEC                      \
 126   "-D_ALL_SOURCE -D__COMPATMATH__               \
 127    %{maix64: -D__64BIT__}                       \
 128    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
 129    %{pthread: -D_THREAD_SAFE}"
 130
 131 #define RS6000_CPU(NAME, CPU, FLAGS)
 132 #include "rs6000-cpus.def"
 133 #undef RS6000_CPU
 134
 135 #undef  TARGET_DEFAULT
 136 #define TARGET_DEFAULT ISA_2_6_MASKS_EMBEDDED
 137
 138 #undef  PROCESSOR_DEFAULT
 139 #define PROCESSOR_DEFAULT PROCESSOR_POWER7
 140 #undef  PROCESSOR_DEFAULT64
 141 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
 142
 143 /* AIX 7.2 kernel and assembler have necessary support for Altivec and VSX.  */
 144 #undef OS_MISSING_ALTIVEC
 145
 146 /* Define this macro as a C expression for the initializer of an
 147    array of string to tell the driver program which options are
 148    defaults for this target and thus do not need to be handled
 149    specially when using `MULTILIB_OPTIONS'.
 150
 151    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 152    the target makefile fragment or if none of the options listed in
 153    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 154
 155 #undef  MULTILIB_DEFAULTS
 156
 157 #undef LIB_SPEC
 158 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 159    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 160    %{!maix64:%{!shared:%{g*:-lg}}}\
 161    %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\
 162    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 163    %{pthread:-lpthreads} -lc"
 164
 165 #undef LINK_SPEC
 166 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
 167    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 168    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 169    %{mpe:-binitfini:poe_remote_main}"
 170
 171 #undef STARTFILE_SPEC
 172 #define STARTFILE_SPEC "%{!shared:\
 173    %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\
 174      %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\
 175        %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\
 176    %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s"
 177
 178 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 179
 180 #undef PTRDIFF_TYPE
 181 #define PTRDIFF_TYPE "long int"
 182
 183 /* Type used for wchar_t, as a string used in a declaration.  */
 184 #undef  WCHAR_TYPE
 185 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 186
 187 /* Width of wchar_t in bits.  */
 188 #undef  WCHAR_TYPE_SIZE
 189 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 190
 191 /* AIX 4.2 and above provides initialization and finalization function
 192    support from linker command line.  */
 193 #undef HAS_INIT_SECTION
 194 #define HAS_INIT_SECTION
 195
 196 #undef LD_INIT_SWITCH
 197 #define LD_INIT_SWITCH "-binitfini"
 198
 199 #ifndef _AIX52
 200 extern long long int    atoll(const char *);
 201 #endif
 202
 203 /* This target uses the aix64.opt file.  */
 204 #define TARGET_USES_AIX64_OPT 1
 205
 206 /* Large TOC Support */
 207 #ifdef HAVE_LD_LARGE_TOC
 208 #undef TARGET_CMODEL
 209 #define TARGET_CMODEL rs6000_current_cmodel
 210 #define SET_CMODEL(opt) rs6000_current_cmodel = opt
 211 #else
 212 #define SET_CMODEL(opt) do {} while (0)
 213 #endif
 214
 215 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
 216    but does not have crtbegin/end.  */
 217
 218 #define TARGET_AIX_VERSION 72
 219
 220 /* AIX 7.2 supports DWARF3 debugging, but XCOFF remains the default.  */
 221 #define DWARF2_DEBUGGING_INFO 1
 222 #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG
 223 #define DEBUG_INFO_SECTION      "0x10000"
 224 #define DEBUG_LINE_SECTION      "0x20000"
 225 #define DEBUG_PUBNAMES_SECTION  "0x30000"
 226 #define DEBUG_PUBTYPES_SECTION  "0x40000"
 227 #define DEBUG_ARANGES_SECTION   "0x50000"
 228 #define DEBUG_ABBREV_SECTION    "0x60000"
 229 #define DEBUG_STR_SECTION       "0x70000"
 230 #define DEBUG_RANGES_SECTION    "0x80000"
 231 #define DEBUG_LOC_SECTION       "0x90000"
 232 #define DEBUG_FRAME_SECTION     "0xA0000"
 233 #define DEBUG_MACINFO_SECTION   "0xB0000"
 234 #define DEBUG_MACRO_SECTION     "0xB0000"
 235