gcc/config/rs6000/aix51.h

   1 /* Definitions of target machine for GNU compiler,
   2    for IBM RS/6000 POWER running AIX V5.
   3    Copyright (C) 2001-2015 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_POWERPC64 && ! TARGET_64BIT)                               \
  33     {                                                                   \
  34       error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
  35     }                                                                   \
  36 } while (0);
  37
  38 #undef ASM_SPEC
  39 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
  40
  41 /* Common ASM definitions used by ASM_SPEC amongst the various targets
  42    for handling -mcpu=xxx switches.  */
  43 #undef ASM_CPU_SPEC
  44 #define ASM_CPU_SPEC \
  45 "%{!mcpu*: %{!maix64: \
  46   %{!mpowerpc64: %(asm_default)} \
  47   %{mpowerpc64: -mppc64}}} \
  48 %{mcpu=power3: -m620} \
  49 %{mcpu=power4: -m620} \
  50 %{mcpu=powerpc: -mppc} \
  51 %{mcpu=rs64a: -mppc} \
  52 %{mcpu=601: -m601} \
  53 %{mcpu=602: -mppc} \
  54 %{mcpu=603: -m603} \
  55 %{mcpu=603e: -m603} \
  56 %{mcpu=604: -m604} \
  57 %{mcpu=604e: -m604} \
  58 %{mcpu=620: -m620} \
  59 %{mcpu=630: -m620} \
  60 %{mcpu=970: -m620} \
  61 %{mcpu=G5: -m620}"
  62
  63 #undef  ASM_DEFAULT_SPEC
  64 #define ASM_DEFAULT_SPEC "-mppc"
  65
  66 #undef TARGET_OS_CPP_BUILTINS
  67 #define TARGET_OS_CPP_BUILTINS()     \
  68   do                                 \
  69     {                                \
  70       builtin_define ("_AIX43");     \
  71       builtin_define ("_AIX51");     \
  72       TARGET_OS_AIX_CPP_BUILTINS (); \
  73     }                                \
  74   while (0)
  75
  76 #undef CPP_SPEC
  77 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}     \
  78   %{ansi: -D_ANSI_C_SOURCE}                     \
  79   %{maix64: -D__64BIT__}                        \
  80   %{mpe: -I%R/usr/lpp/ppe.poe/include}          \
  81   %{pthread: -D_THREAD_SAFE}"
  82
  83 /* The GNU C++ standard library requires that these macros be
  84    defined.  */
  85 #undef CPLUSPLUS_CPP_SPEC
  86 #define CPLUSPLUS_CPP_SPEC                      \
  87   "-D_ALL_SOURCE                                \
  88    %{maix64: -D__64BIT__}                       \
  89    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
  90    %{pthread: -D_THREAD_SAFE}"
  91
  92 #undef TARGET_DEFAULT
  93 #define TARGET_DEFAULT 0
  94
  95 #undef PROCESSOR_DEFAULT
  96 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e
  97
  98 /* AIX does not support Altivec.  */
  99 #undef  TARGET_ALTIVEC
 100 #define TARGET_ALTIVEC 0
 101 #undef  TARGET_ALTIVEC_ABI
 102 #define TARGET_ALTIVEC_ABI 0
 103
 104 /* Define this macro as a C expression for the initializer of an
 105    array of string to tell the driver program which options are
 106    defaults for this target and thus do not need to be handled
 107    specially when using `MULTILIB_OPTIONS'.
 108
 109    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 110    the target makefile fragment or if none of the options listed in
 111    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 112
 113 #undef  MULTILIB_DEFAULTS
 114 #define MULTILIB_DEFAULTS { "mcpu=common" }
 115
 116 #undef LIB_SPEC
 117 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 118    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 119    %{!maix64:%{!shared:%{g*:-lg}}}\
 120    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 121    %{pthread:-lpthreads} -lc"
 122
 123 #undef LINK_SPEC
 124 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
 125    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 126    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 127    %{mpe:-binitfini:poe_remote_main}"
 128
 129 #undef STARTFILE_SPEC
 130 #define STARTFILE_SPEC "%{!shared:\
 131    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 132    %{!maix64:\
 133      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 134      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 135
 136 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 137
 138 #undef PTRDIFF_TYPE
 139 #define PTRDIFF_TYPE "long int"
 140
 141 /* Type used for wchar_t, as a string used in a declaration.  */
 142 #undef  WCHAR_TYPE
 143 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 144
 145 /* Width of wchar_t in bits.  */
 146 #undef  WCHAR_TYPE_SIZE
 147 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 148
 149 /* AIX 4.2 and above provides initialization and finalization function
 150    support from linker command line.  */
 151 #undef HAS_INIT_SECTION
 152 #define HAS_INIT_SECTION
 153
 154 #undef LD_INIT_SWITCH
 155 #define LD_INIT_SWITCH "-binitfini"
 156
 157 /* This target uses the aix64.opt file.  */
 158 #define TARGET_USES_AIX64_OPT 1
 159
 160 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
 161    but does not have crtbegin/end.  */
 162
 163 #define TARGET_USE_JCR_SECTION 0
 164
 165 #define TARGET_AIX_VERSION 51
 166
 167 #undef TARGET_LIBC_HAS_FUNCTION
 168 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function