gcc/config/rs6000/aix53.h

   1 /* Definitions of target machine for GNU compiler,
   2    for IBM RS/6000 POWER running AIX V5.3.
   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       target_flags |= 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 } while (0);
  43
  44 #undef ASM_SPEC
  45 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
  46
  47 /* Common ASM definitions used by ASM_SPEC amongst the various targets for
  48    handling -mcpu=xxx switches.  There is a parallel list in driver-rs6000.c to
  49    provide the default assembler options if the user uses -mcpu=native, so if
  50    you make changes here, make them there also.  */
  51 #undef ASM_CPU_SPEC
  52 #define ASM_CPU_SPEC \
  53 "%{!mcpu*: %{!maix64: \
  54   %{mpowerpc64: -mppc64} \
  55   %{maltivec: -m970} \
  56   %{!maltivec: %{!mpowerpc64: %(asm_default)}}}} \
  57 %{mcpu=native: %(asm_cpu_native)} \
  58 %{mcpu=power3: -m620} \
  59 %{mcpu=power4: -mpwr4} \
  60 %{mcpu=power5: -mpwr5} \
  61 %{mcpu=power5+: -mpwr5x} \
  62 %{mcpu=power6: -mpwr6} \
  63 %{mcpu=power6x: -mpwr6} \
  64 %{mcpu=power7: -mpwr7} \
  65 %{mcpu=powerpc: -mppc} \
  66 %{mcpu=rs64a: -mppc} \
  67 %{mcpu=603: -m603} \
  68 %{mcpu=603e: -m603} \
  69 %{mcpu=604: -m604} \
  70 %{mcpu=604e: -m604} \
  71 %{mcpu=620: -m620} \
  72 %{mcpu=630: -m620} \
  73 %{mcpu=970: -m970} \
  74 %{mcpu=G5: -m970}"
  75
  76 #undef  ASM_DEFAULT_SPEC
  77 #define ASM_DEFAULT_SPEC "-mppc"
  78
  79 #undef TARGET_OS_CPP_BUILTINS
  80 #define TARGET_OS_CPP_BUILTINS()     \
  81   do                                 \
  82     {                                \
  83       builtin_define ("_AIX43");     \
  84       builtin_define ("_AIX51");     \
  85       builtin_define ("_AIX52");     \
  86       builtin_define ("_AIX53");     \
  87       TARGET_OS_AIX_CPP_BUILTINS (); \
  88     }                                \
  89   while (0)
  90
  91 #undef CPP_SPEC
  92 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}     \
  93   %{ansi: -D_ANSI_C_SOURCE}                     \
  94   %{maix64: -D__64BIT__}                        \
  95   %{mpe: -I%R/usr/lpp/ppe.poe/include}          \
  96   %{pthread: -D_THREAD_SAFE}"
  97
  98 /* The GNU C++ standard library requires that these macros be
  99    defined.  Synchronize with libstdc++ os_defines.h.  */
 100 #undef CPLUSPLUS_CPP_SPEC
 101 #define CPLUSPLUS_CPP_SPEC                      \
 102   "-D_ALL_SOURCE                                \
 103    %{maix64: -D__64BIT__}                       \
 104    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
 105    %{pthread: -D_THREAD_SAFE}"
 106
 107 #undef  TARGET_DEFAULT
 108 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
 109
 110 #undef  PROCESSOR_DEFAULT
 111 #define PROCESSOR_DEFAULT PROCESSOR_POWER5
 112 #undef  PROCESSOR_DEFAULT64
 113 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER5
 114
 115 /* Define this macro as a C expression for the initializer of an
 116    array of string to tell the driver program which options are
 117    defaults for this target and thus do not need to be handled
 118    specially when using `MULTILIB_OPTIONS'.
 119
 120    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 121    the target makefile fragment or if none of the options listed in
 122    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 123
 124 #undef  MULTILIB_DEFAULTS
 125
 126 #undef LIB_SPEC
 127 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 128    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 129    %{!maix64:%{!shared:%{g*:-lg}}}\
 130    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 131    %{pthread:-lpthreads} -lc"
 132
 133 #undef LINK_SPEC
 134 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 135    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 136    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 137    %{mpe:-binitfini:poe_remote_main}"
 138
 139 #undef STARTFILE_SPEC
 140 #define STARTFILE_SPEC "%{!shared:\
 141    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 142    %{!maix64:\
 143      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 144      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 145
 146 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 147
 148 #undef PTRDIFF_TYPE
 149 #define PTRDIFF_TYPE "long int"
 150
 151 /* Type used for wchar_t, as a string used in a declaration.  */
 152 #undef  WCHAR_TYPE
 153 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 154
 155 /* Width of wchar_t in bits.  */
 156 #undef  WCHAR_TYPE_SIZE
 157 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 158
 159 /* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
 160    and "cror 31,31,31" for POWER architecture.  */
 161
 162 #undef RS6000_CALL_GLUE
 163 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
 164
 165 /* AIX 4.2 and above provides initialization and finalization function
 166    support from linker command line.  */
 167 #undef HAS_INIT_SECTION
 168 #define HAS_INIT_SECTION
 169
 170 #undef LD_INIT_SWITCH
 171 #define LD_INIT_SWITCH "-binitfini"
 172
 173 /* AIX 5.2 has the float and long double forms of math functions.  */
 174 #undef TARGET_C99_FUNCTIONS
 175 #define TARGET_C99_FUNCTIONS  1
 176
 177 #ifndef _AIX52
 178 extern long long int    atoll(const char *);
 179 #endif
 180
 181 /* This target uses the aix64.opt file.  */
 182 #define TARGET_USES_AIX64_OPT 1
 183
 184 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
 185    but does not have crtbegin/end.  */
 186
 187 #define TARGET_USE_JCR_SECTION 0
 188
 189 #define TARGET_AIX_VERSION 53