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) 2002-2019 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} %(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=native: %(asm_cpu_native); \
  71   mcpu=power9: -mpwr9; \
  72   mcpu=power8: -mpwr8; \
  73   mcpu=power7: -mpwr7; \
  74   mcpu=power6x|mcpu=power6: -mpwr6; \
  75   mcpu=power5+: -mpwr5x; \
  76   mcpu=power5: -mpwr5; \
  77   mcpu=power4: -mpwr4; \
  78   mcpu=power3: -m620; \
  79   mcpu=powerpc: -mppc; \
  80   mcpu=rs64: -mppc; \
  81   mcpu=603: -m603; \
  82   mcpu=603e: -m603; \
  83   mcpu=604: -m604; \
  84   mcpu=604e: -m604; \
  85   mcpu=620: -m620; \
  86   mcpu=630: -m620; \
  87   mcpu=970|mcpu=G5: -m970; \
  88   !mcpu*: %{mvsx: -mpwr6; \
  89             maltivec: -m970; \
  90             maix64|mpowerpc64: -mppc64; \
  91             : %(asm_default)}} \
  92 -many"
  93
  94 #undef  ASM_DEFAULT_SPEC
  95 #define ASM_DEFAULT_SPEC "-mpwr4"
  96
  97 #undef TARGET_OS_CPP_BUILTINS
  98 #define TARGET_OS_CPP_BUILTINS()     \
  99   do                                 \
 100     {                                \
 101       builtin_define ("_AIX43");     \
 102       builtin_define ("_AIX51");     \
 103       builtin_define ("_AIX52");     \
 104       builtin_define ("_AIX53");     \
 105       builtin_define ("_AIX61");     \
 106       builtin_define ("_AIX71");     \
 107       TARGET_OS_AIX_CPP_BUILTINS (); \
 108     }                                \
 109   while (0)
 110
 111 #undef CPP_SPEC
 112 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}     \
 113   %{ansi: -D_ANSI_C_SOURCE}                     \
 114   %{maix64: -D__64BIT__}                        \
 115   %{mpe: -I%R/usr/lpp/ppe.poe/include}          \
 116   %{pthread: -D_THREAD_SAFE}"
 117
 118 /* The GNU C++ standard library requires that these macros be
 119    defined.  Synchronize with libstdc++ os_defines.h.  */
 120 #undef CPLUSPLUS_CPP_SPEC
 121 #define CPLUSPLUS_CPP_SPEC                      \
 122   "-D_ALL_SOURCE -D__COMPATMATH__               \
 123    %{maix64: -D__64BIT__}                       \
 124    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
 125    %{pthread: -D_THREAD_SAFE}"
 126
 127 #define RS6000_CPU(NAME, CPU, FLAGS)
 128 #include "rs6000-cpus.def"
 129 #undef RS6000_CPU
 130
 131 #undef  TARGET_DEFAULT
 132 #define TARGET_DEFAULT (MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF)
 133
 134 #undef  PROCESSOR_DEFAULT
 135 #define PROCESSOR_DEFAULT PROCESSOR_POWER7
 136 #undef  PROCESSOR_DEFAULT64
 137 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
 138
 139 /* AIX 7.1 kernel and assembler have necessary support for Altivec and VSX.  */
 140 #undef OS_MISSING_ALTIVEC
 141
 142 /* Define this macro as a C expression for the initializer of an
 143    array of string to tell the driver program which options are
 144    defaults for this target and thus do not need to be handled
 145    specially when using `MULTILIB_OPTIONS'.
 146
 147    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 148    the target makefile fragment or if none of the options listed in
 149    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 150
 151 #undef  MULTILIB_DEFAULTS
 152
 153 #undef LIB_SPEC
 154 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 155    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 156    %{!maix64:%{!shared:%{g*:-lg}}}\
 157    %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\
 158    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 159    %{pthread:-lpthreads} -lc"
 160
 161 #undef LINK_SPEC
 162 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
 163    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 164    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 165    %{mpe:-binitfini:poe_remote_main}"
 166
 167 #undef STARTFILE_SPEC
 168 #define STARTFILE_SPEC "%{!shared:\
 169    %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\
 170      %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\
 171        %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\
 172    %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s"
 173
 174 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 175
 176 #undef PTRDIFF_TYPE
 177 #define PTRDIFF_TYPE "long int"
 178
 179 /* Type used for wchar_t, as a string used in a declaration.  */
 180 #undef  WCHAR_TYPE
 181 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 182
 183 /* Width of wchar_t in bits.  */
 184 #undef  WCHAR_TYPE_SIZE
 185 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 186
 187 /* AIX 4.2 and above provides initialization and finalization function
 188    support from linker command line.  */
 189 #undef HAS_INIT_SECTION
 190 #define HAS_INIT_SECTION
 191
 192 #undef LD_INIT_SWITCH
 193 #define LD_INIT_SWITCH "-binitfini"
 194
 195 #ifndef _AIX52
 196 extern long long int    atoll(const char *);
 197 #endif
 198
 199 /* This target uses the aix64.opt file.  */
 200 #define TARGET_USES_AIX64_OPT 1
 201
 202 /* Large TOC Support */
 203 #ifdef HAVE_LD_LARGE_TOC
 204 #undef TARGET_CMODEL
 205 #define TARGET_CMODEL rs6000_current_cmodel
 206 #define SET_CMODEL(opt) rs6000_current_cmodel = opt
 207 #else
 208 #define SET_CMODEL(opt) do {} while (0)
 209 #endif
 210
 211 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
 212    but does not have crtbegin/end.  */
 213
 214 #define TARGET_AIX_VERSION 71
 215
 216 /* AIX 7.1 supports DWARF3 debugging, but XCOFF remains the default.  */
 217 #define DWARF2_DEBUGGING_INFO 1
 218 #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG
 219 #define DEBUG_INFO_SECTION      "0x10000"
 220 #define DEBUG_LINE_SECTION      "0x20000"
 221 #define DEBUG_PUBNAMES_SECTION  "0x30000"
 222 #define DEBUG_PUBTYPES_SECTION  "0x40000"
 223 #define DEBUG_ARANGES_SECTION   "0x50000"
 224 #define DEBUG_ABBREV_SECTION    "0x60000"
 225 #define DEBUG_STR_SECTION       "0x70000"
 226 #define DEBUG_RANGES_SECTION    "0x80000"
 227 #define DEBUG_LOC_SECTION       "0x90000"
 228 #define DEBUG_FRAME_SECTION     "0xA0000"
 229 #define DEBUG_MACINFO_SECTION   "0xB0000"
 230 #define DEBUG_MACRO_SECTION     "0xB0000"
 231