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, 2003 Free Software Foundation, Inc.
   4    Contributed by David Edelsohn (edelsohn@gnu.org).
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2, or (at your option)
  11 any later version.
  12
  13 GNU CC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU CC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 59 Temple Place - Suite 330,
  21 Boston, MA 02111-1307, USA.  */
  22
  23
  24 /* AIX V5 and above support 64-bit executables.  */
  25 #undef  SUBSUBTARGET_SWITCHES
  26 #define SUBSUBTARGET_SWITCHES                                   \
  27   {"aix64",             MASK_64BIT | MASK_POWERPC64 | MASK_POWERPC,     \
  28    N_("Compile for 64-bit pointers") },                                 \
  29   {"aix32",             - (MASK_64BIT | MASK_POWERPC64),                \
  30    N_("Compile for 32-bit pointers") },                                 \
  31   {"pe",                0,                                              \
  32    N_("Support message passing with the Parallel Environment") },
  33
  34 /* Sometimes certain combinations of command options do not make sense
  35    on a particular target machine.  You can define a macro
  36    `OVERRIDE_OPTIONS' to take account of this.  This macro, if
  37    defined, is executed once just after all the command options have
  38    been parsed.
  39
  40    The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
  41    get control.  */
  42
  43 #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
  44 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
  45 do {                                                                    \
  46   if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS))               \
  47     {                                                                   \
  48       target_flags &= ~NON_POWERPC_MASKS;                               \
  49       warning ("-maix64 and POWER architecture are incompatible");      \
  50     }                                                                   \
  51   if (TARGET_64BIT && ! TARGET_POWERPC64)                               \
  52     {                                                                   \
  53       target_flags |= MASK_POWERPC64;                                   \
  54       warning ("-maix64 requires PowerPC64 architecture remain enabled"); \
  55     }                                                                   \
  56   if (TARGET_POWERPC64 && ! TARGET_64BIT)                               \
  57     {                                                                   \
  58       error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
  59     }                                                                   \
  60 } while (0);
  61
  62 #undef ASM_SPEC
  63 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
  64
  65 /* Common ASM definitions used by ASM_SPEC amongst the various targets
  66    for handling -mcpu=xxx switches.  */
  67 #undef ASM_CPU_SPEC
  68 #define ASM_CPU_SPEC \
  69 "%{!mcpu*: %{!maix64: \
  70   %{mpowerpc64: -mppc64} \
  71   %{!mpower64: %(asm_default)}}} \
  72 %{mcpu=power3: -m620} \
  73 %{mcpu=power4: -m620} \
  74 %{mcpu=powerpc: -mppc} \
  75 %{mcpu=rs64a: -mppc} \
  76 %{mcpu=603: -m603} \
  77 %{mcpu=603e: -m603} \
  78 %{mcpu=604: -m604} \
  79 %{mcpu=604e: -m604} \
  80 %{mcpu=620: -m620} \
  81 %{mcpu=630: -m620}"
  82
  83 #undef  ASM_DEFAULT_SPEC
  84 #define ASM_DEFAULT_SPEC "-mppc"
  85
  86 #undef TARGET_OS_CPP_BUILTINS
  87 #define TARGET_OS_CPP_BUILTINS()      \
  88   do                                  \
  89     {                                 \
  90       builtin_define ("_IBMR2");      \
  91       builtin_define ("_POWER");      \
  92       builtin_define ("_LONG_LONG");  \
  93       builtin_define ("_AIX");        \
  94       builtin_define ("_AIX32");      \
  95       builtin_define ("_AIX41");      \
  96       builtin_define ("_AIX43");      \
  97       builtin_define ("_AIX51");      \
  98       builtin_define ("_AIX52");      \
  99       builtin_assert ("system=unix"); \
 100       builtin_assert ("system=aix");  \
 101     }                                 \
 102   while (0)
 103
 104 #undef CPP_SPEC
 105 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}     \
 106   %{ansi: -D_ANSI_C_SOURCE}                     \
 107   %{maix64: -D__64BIT__}                        \
 108   %{mpe: -I/usr/lpp/ppe.poe/include}            \
 109   %{pthread: -D_THREAD_SAFE}"
 110
 111 /* The GNU C++ standard library requires that these macros be
 112    defined.  */
 113 #undef CPLUSPLUS_CPP_SPEC
 114 #define CPLUSPLUS_CPP_SPEC                      \
 115   "-D_XOPEN_SOURCE=500                          \
 116    -D_XOPEN_SOURCE_EXTENDED=1                   \
 117    -D_LARGE_FILE_API                            \
 118    -D_ALL_SOURCE                                \
 119    %{maix64: -D__64BIT__}                       \
 120    %{mpe: -I/usr/lpp/ppe.poe/include}           \
 121    %{pthread: -D_THREAD_SAFE}"
 122
 123 #undef  TARGET_DEFAULT
 124 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
 125
 126 #undef  PROCESSOR_DEFAULT
 127 #define PROCESSOR_DEFAULT PROCESSOR_PPC630
 128 #undef  PROCESSOR_DEFAULT64
 129 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
 130
 131 #undef  TARGET_POWER
 132 #define TARGET_POWER 0
 133
 134 /* Define this macro as a C expression for the initializer of an
 135    array of string to tell the driver program which options are
 136    defaults for this target and thus do not need to be handled
 137    specially when using `MULTILIB_OPTIONS'.
 138
 139    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 140    the target makefile fragment or if none of the options listed in
 141    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 142
 143 #undef  MULTILIB_DEFAULTS
 144
 145 #undef LIB_SPEC
 146 #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
 147    %{p:-L/lib/profiled -L/usr/lib/profiled}\
 148    %{!maix64:%{!shared:%{g*:-lg}}}\
 149    %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 150    %{pthread:-lpthreads} -lc"
 151
 152 #undef LINK_SPEC
 153 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 154    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 155    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 156    %{mpe:-binitfini:poe_remote_main}"
 157
 158 #undef STARTFILE_SPEC
 159 #define STARTFILE_SPEC "%{!shared:\
 160    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 161    %{!maix64:\
 162      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 163      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 164
 165 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 166
 167 #undef PTRDIFF_TYPE
 168 #define PTRDIFF_TYPE "long int"
 169
 170 /* Type used for wchar_t, as a string used in a declaration.  */
 171 #undef  WCHAR_TYPE
 172 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 173
 174 /* Width of wchar_t in bits.  */
 175 #undef  WCHAR_TYPE_SIZE
 176 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 177 #define MAX_WCHAR_TYPE_SIZE 32
 178
 179 /* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
 180    and "cror 31,31,31" for POWER architecture.  */
 181
 182 #undef RS6000_CALL_GLUE
 183 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
 184
 185 /* AIX 4.2 and above provides initialization and finalization function
 186    support from linker command line.  */
 187 #undef HAS_INIT_SECTION
 188 #define HAS_INIT_SECTION
 189
 190 #undef LD_INIT_SWITCH
 191 #define LD_INIT_SWITCH "-binitfini"