gcc/config/rs6000/aix52.h

   1 /* Definitions of target machine for GNU compiler,
   2    for IBM RS/6000 POWER running AIX V5.2.
   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
  48    for handling -mcpu=xxx switches.  */
  49 #undef ASM_CPU_SPEC
  50 #define ASM_CPU_SPEC \
  51 "%{!mcpu*: %{!maix64: \
  52   %{mpowerpc64: -mppc64} \
  53   %{!mpowerpc64: %(asm_default)}}} \
  54 %{mcpu=power3: -m620} \
  55 %{mcpu=power4: -m620} \
  56 %{mcpu=power5: -m620} \
  57 %{mcpu=power5+: -m620} \
  58 %{mcpu=power6: -m620} \
  59 %{mcpu=power6x: -m620} \
  60 %{mcpu=powerpc: -mppc} \
  61 %{mcpu=rs64a: -mppc} \
  62 %{mcpu=603: -m603} \
  63 %{mcpu=603e: -m603} \
  64 %{mcpu=604: -m604} \
  65 %{mcpu=604e: -m604} \
  66 %{mcpu=620: -m620} \
  67 %{mcpu=630: -m620} \
  68 %{mcpu=970: -m620} \
  69 %{mcpu=G5: -m620}"
  70
  71 #undef  ASM_DEFAULT_SPEC
  72 #define ASM_DEFAULT_SPEC "-mppc"
  73
  74 #undef TARGET_OS_CPP_BUILTINS
  75 #define TARGET_OS_CPP_BUILTINS()     \
  76   do                                 \
  77     {                                \
  78       builtin_define ("_AIX43");     \
  79       builtin_define ("_AIX51");     \
  80       builtin_define ("_AIX52");     \
  81       TARGET_OS_AIX_CPP_BUILTINS (); \
  82     }                                \
  83   while (0)
  84
  85 #undef CPP_SPEC
  86 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}     \
  87   %{ansi: -D_ANSI_C_SOURCE}                     \
  88   %{maix64: -D__64BIT__}                        \
  89   %{mpe: -I%R/usr/lpp/ppe.poe/include}          \
  90   %{pthread: -D_THREAD_SAFE}"
  91
  92 /* The GNU C++ standard library requires that these macros be
  93    defined.  Synchronize with libstdc++ os_defines.h.  */
  94 #undef CPLUSPLUS_CPP_SPEC
  95 #define CPLUSPLUS_CPP_SPEC                      \
  96   "-D_ALL_SOURCE                                \
  97    %{maix64: -D__64BIT__}                       \
  98    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
  99    %{pthread: -D_THREAD_SAFE}"
 100
 101 #undef  TARGET_DEFAULT
 102 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
 103
 104 #undef  PROCESSOR_DEFAULT
 105 #define PROCESSOR_DEFAULT PROCESSOR_POWER4
 106 #undef  PROCESSOR_DEFAULT64
 107 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
 108
 109 /* AIX does not support Altivec.  */
 110 #undef  TARGET_ALTIVEC
 111 #define TARGET_ALTIVEC 0
 112 #undef  TARGET_ALTIVEC_ABI
 113 #define TARGET_ALTIVEC_ABI 0
 114 #undef  TARGET_EXTRA_BUILTINS
 115 #define TARGET_EXTRA_BUILTINS 0
 116
 117 /* Define this macro as a C expression for the initializer of an
 118    array of string to tell the driver program which options are
 119    defaults for this target and thus do not need to be handled
 120    specially when using `MULTILIB_OPTIONS'.
 121
 122    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 123    the target makefile fragment or if none of the options listed in
 124    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 125
 126 #undef  MULTILIB_DEFAULTS
 127
 128 #undef LIB_SPEC
 129 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 130    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 131    %{!maix64:%{!shared:%{g*:-lg}}}\
 132    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 133    %{pthread:-lpthreads} -lc"
 134
 135 #undef LINK_SPEC
 136 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 137    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 138    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 139    %{mpe:-binitfini:poe_remote_main}"
 140
 141 #undef STARTFILE_SPEC
 142 #define STARTFILE_SPEC "%{!shared:\
 143    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 144    %{!maix64:\
 145      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 146      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 147
 148 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 149
 150 #undef PTRDIFF_TYPE
 151 #define PTRDIFF_TYPE "long int"
 152
 153 /* Type used for wchar_t, as a string used in a declaration.  */
 154 #undef  WCHAR_TYPE
 155 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 156
 157 /* Width of wchar_t in bits.  */
 158 #undef  WCHAR_TYPE_SIZE
 159 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 160
 161 /* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
 162    and "cror 31,31,31" for POWER architecture.  */
 163
 164 #undef RS6000_CALL_GLUE
 165 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
 166
 167 /* AIX 4.2 and above provides initialization and finalization function
 168    support from linker command line.  */
 169 #undef HAS_INIT_SECTION
 170 #define HAS_INIT_SECTION
 171
 172 #undef LD_INIT_SWITCH
 173 #define LD_INIT_SWITCH "-binitfini"
 174
 175 /* AIX 5.2 has the float and long double forms of math functions.  */
 176 #undef TARGET_C99_FUNCTIONS
 177 #define TARGET_C99_FUNCTIONS  1
 178
 179 #ifndef _AIX52
 180 extern long long int    atoll(const char *);
 181 #endif
 182
 183 /* This target uses the aix64.opt file.  */
 184 #define TARGET_USES_AIX64_OPT 1
 185
 186 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
 187    but does not have crtbegin/end.  */
 188
 189 #define TARGET_USE_JCR_SECTION 0
 190
 191 #define TARGET_AIX_VERSION 52