gcc/config/rs6000/aix61.h

   1 /* Definitions of target machine for GNU compiler,
   2    for IBM RS/6000 POWER running AIX V6.1.
   3    Copyright (C) 2002-2012 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=powerpc: -mppc} \
  84 %{mcpu=rs64a: -mppc} \
  85 %{mcpu=603: -m603} \
  86 %{mcpu=603e: -m603} \
  87 %{mcpu=604: -m604} \
  88 %{mcpu=604e: -m604} \
  89 %{mcpu=620: -m620} \
  90 %{mcpu=630: -m620} \
  91 %{mcpu=970: -m970} \
  92 %{mcpu=G5: -m970} \
  93 %{mvsx: %{!mcpu*: -mpwr6}} \
  94 -many"
  95
  96 #undef  ASM_DEFAULT_SPEC
  97 #define ASM_DEFAULT_SPEC "-mpwr4"
  98
  99 #undef TARGET_OS_CPP_BUILTINS
 100 #define TARGET_OS_CPP_BUILTINS()     \
 101   do                                 \
 102     {                                \
 103       builtin_define ("_AIX43");     \
 104       builtin_define ("_AIX51");     \
 105       builtin_define ("_AIX52");     \
 106       builtin_define ("_AIX53");     \
 107       builtin_define ("_AIX61");     \
 108       TARGET_OS_AIX_CPP_BUILTINS (); \
 109     }                                \
 110   while (0)
 111
 112 #undef CPP_SPEC
 113 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}     \
 114   %{ansi: -D_ANSI_C_SOURCE}                     \
 115   %{maix64: -D__64BIT__}                        \
 116   %{mpe: -I%R/usr/lpp/ppe.poe/include}          \
 117   %{pthread: -D_THREAD_SAFE}"
 118
 119 /* The GNU C++ standard library requires that these macros be
 120    defined.  Synchronize with libstdc++ os_defines.h.  */
 121 #undef CPLUSPLUS_CPP_SPEC
 122 #define CPLUSPLUS_CPP_SPEC                      \
 123   "-D_ALL_SOURCE -D__COMPATMATH__               \
 124    %{maix64: -D__64BIT__}                       \
 125    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
 126    %{pthread: -D_THREAD_SAFE}"
 127
 128 #undef  TARGET_DEFAULT
 129 #define TARGET_DEFAULT (MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF)
 130
 131 #undef  PROCESSOR_DEFAULT
 132 #define PROCESSOR_DEFAULT PROCESSOR_POWER7
 133 #undef  PROCESSOR_DEFAULT64
 134 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
 135
 136 /* Define this macro as a C expression for the initializer of an
 137    array of string to tell the driver program which options are
 138    defaults for this target and thus do not need to be handled
 139    specially when using `MULTILIB_OPTIONS'.
 140
 141    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 142    the target makefile fragment or if none of the options listed in
 143    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 144
 145 #undef  MULTILIB_DEFAULTS
 146
 147 #undef LIB_SPEC
 148 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 149    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 150    %{!maix64:%{!shared:%{g*:-lg}}}\
 151    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 152    %{pthread:-lpthreads} -lc"
 153
 154 #undef LINK_SPEC
 155 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 156    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 157    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 158    %{mpe:-binitfini:poe_remote_main}"
 159
 160 #undef STARTFILE_SPEC
 161 #define STARTFILE_SPEC "%{!shared:\
 162    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 163    %{!maix64:\
 164      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 165      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 166
 167 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 168
 169 #undef PTRDIFF_TYPE
 170 #define PTRDIFF_TYPE "long int"
 171
 172 /* Type used for wchar_t, as a string used in a declaration.  */
 173 #undef  WCHAR_TYPE
 174 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 175
 176 /* Width of wchar_t in bits.  */
 177 #undef  WCHAR_TYPE_SIZE
 178 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 179
 180 /* AIX 4.2 and above provides initialization and finalization function
 181    support from linker command line.  */
 182 #undef HAS_INIT_SECTION
 183 #define HAS_INIT_SECTION
 184
 185 #undef LD_INIT_SWITCH
 186 #define LD_INIT_SWITCH "-binitfini"
 187
 188 /* AIX 5.2 has the float and long double forms of math functions.  */
 189 #undef TARGET_C99_FUNCTIONS
 190 #define TARGET_C99_FUNCTIONS  1
 191
 192 #ifndef _AIX52
 193 extern long long int    atoll(const char *);
 194 #endif
 195
 196 /* This target uses the aix64.opt file.  */
 197 #define TARGET_USES_AIX64_OPT 1
 198
 199 /* Large TOC Support */
 200 #ifdef HAVE_LD_LARGE_TOC
 201 #undef TARGET_CMODEL
 202 #define TARGET_CMODEL rs6000_current_cmodel
 203 #define SET_CMODEL(opt) rs6000_current_cmodel = opt
 204 #else
 205 #define SET_CMODEL(opt) do {} while (0)
 206 #endif
 207
 208 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
 209    but does not have crtbegin/end.  */
 210
 211 #define TARGET_USE_JCR_SECTION 0
 212
 213 #define TARGET_AIX_VERSION 61