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 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 -mppc64} %(asm_cpu)"
  64
  65 /* Common ASM definitions used by ASM_SPEC amonst the various targets
  66    for handling -mcpu=xxx switches.  */
  67 #undef ASM_CPU_SPEC
  68 #define ASM_CPU_SPEC \
  69 "%{!mcpu*: %{!maix64: \
  70   %{mpower: %{!mpower2: -mpwr}} \
  71   %{mpower2: -mpwr2} \
  72   %{mpowerpc*: %{!mpowerpc64: -mppc}} \
  73   %{mpowerpc64: -mppc64} \
  74   %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \
  75 %{mcpu=common: -mcom} \
  76 %{mcpu=power: -mpwr} \
  77 %{mcpu=power2: -mpwr2} \
  78 %{mcpu=powerpc: -mppc} \
  79 %{mcpu=rios: -mpwr} \
  80 %{mcpu=rios1: -mpwr} \
  81 %{mcpu=rios2: -mpwr2} \
  82 %{mcpu=rsc: -mpwr} \
  83 %{mcpu=rsc1: -mpwr} \
  84 %{mcpu=rs64a: -mppc} \
  85 %{mcpu=403: -mppc} \
  86 %{mcpu=505: -mppc} \
  87 %{mcpu=601: -m601} \
  88 %{mcpu=602: -mppc} \
  89 %{mcpu=603: -m603} \
  90 %{mcpu=603e: -m603} \
  91 %{mcpu=604: -m604} \
  92 %{mcpu=604e: -m604} \
  93 %{mcpu=620: -mppc} \
  94 %{mcpu=630: -mppc} \
  95 %{mcpu=821: -mppc} \
  96 %{mcpu=860: -mppc}"
  97
  98 #undef  ASM_DEFAULT_SPEC
  99 #define ASM_DEFAULT_SPEC "-mcom"
 100
 101 #undef CPP_PREDEFINES
 102 #define CPP_PREDEFINES "-D_IBMR2 -D_POWER -D_LONG_LONG \
 103 -D_AIX -D_AIX32 -D_AIX41 -D_AIX43 -D_AIX51 -Asystem=unix -Asystem=aix"
 104
 105 #undef CPP_SPEC
 106 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
 107   %{ansi: -D_ANSI_C_SOURCE}\
 108   %{!maix64: -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
 109   %{maix64: -D__64BIT__ -D_ARCH_PPC -D__LONG_MAX__=9223372036854775807L \
 110     -D__WCHAR_TYPE__=unsigned\\ int}\
 111   %{mpe: -I/usr/lpp/ppe.poe/include}\
 112   %{pthread: -D_THREAD_SAFE}\
 113   %(cpp_cpu)"
 114
 115 /* The GNU C++ standard library requires that these macros be
 116    defined.  */
 117 #undef CPLUSPLUS_CPP_SPEC
 118 #define CPLUSPLUS_CPP_SPEC                      \
 119   "-D_XOPEN_SOURCE=500                          \
 120    -D_XOPEN_SOURCE_EXTENDED=1                   \
 121    -D_LARGE_FILE_API                            \
 122    -D_ALL_SOURCE                                \
 123    %{!maix64: -D__WCHAR_TYPE__=short\\ unsigned\\ int}\
 124    %{maix64: -D__64BIT__ -D_ARCH_PPC -D__LONG_MAX__=9223372036854775807L \
 125      -D__WCHAR_TYPE__=unsigned\\ int}\
 126    %{mpe: -I/usr/lpp/ppe.poe/include}\
 127    %{pthread: -D_THREAD_SAFE}\
 128    %(cpp_cpu)"
 129
 130 /* Common CPP definitions used by CPP_SPEC among the various targets
 131    for handling -mcpu=xxx switches.  */
 132 #undef CPP_CPU_SPEC
 133 #define CPP_CPU_SPEC \
 134 "%{!mcpu*: %{!maix64: \
 135   %{mpower: %{!mpower2: -D_ARCH_PWR}} \
 136   %{mpower2: -D_ARCH_PWR2} \
 137   %{mpowerpc*: -D_ARCH_PPC} \
 138   %{!mpower*: %{!mpowerpc*: %(cpp_default)}}}} \
 139 %{mcpu=common: -D_ARCH_COM} \
 140 %{mcpu=power: -D_ARCH_PWR} \
 141 %{mcpu=power2: -D_ARCH_PWR2} \
 142 %{mcpu=powerpc: -D_ARCH_PPC} \
 143 %{mcpu=rios: -D_ARCH_PWR} \
 144 %{mcpu=rios1: -D_ARCH_PWR} \
 145 %{mcpu=rios2: -D_ARCH_PWR2} \
 146 %{mcpu=rsc: -D_ARCH_PWR} \
 147 %{mcpu=rsc1: -D_ARCH_PWR} \
 148 %{mcpu=rs64a: -D_ARCH_PPC} \
 149 %{mcpu=403: -D_ARCH_PPC} \
 150 %{mcpu=505: -D_ARCH_PPC} \
 151 %{mcpu=601: -D_ARCH_PPC -D_ARCH_PWR} \
 152 %{mcpu=602: -D_ARCH_PPC} \
 153 %{mcpu=603: -D_ARCH_PPC} \
 154 %{mcpu=603e: -D_ARCH_PPC} \
 155 %{mcpu=604: -D_ARCH_PPC} \
 156 %{mcpu=620: -D_ARCH_PPC} \
 157 %{mcpu=630: -D_ARCH_PPC} \
 158 %{mcpu=821: -D_ARCH_PPC} \
 159 %{mcpu=860: -D_ARCH_PPC}"
 160
 161 #undef  CPP_DEFAULT_SPEC
 162 #define CPP_DEFAULT_SPEC "-D_ARCH_COM"
 163
 164 #undef TARGET_DEFAULT
 165 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
 166
 167 #undef PROCESSOR_DEFAULT
 168 #define PROCESSOR_DEFAULT PROCESSOR_PPC604
 169
 170 /* Define this macro as a C expression for the initializer of an
 171    array of string to tell the driver program which options are
 172    defaults for this target and thus do not need to be handled
 173    specially when using `MULTILIB_OPTIONS'.
 174
 175    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 176    the target makefile fragment or if none of the options listed in
 177    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 178
 179 #undef  MULTILIB_DEFAULTS
 180 #define MULTILIB_DEFAULTS { "mcpu=common" }
 181
 182 #undef LIB_SPEC
 183 #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
 184    %{p:-L/lib/profiled -L/usr/lib/profiled}\
 185    %{!maix64:%{!shared:%{g*:-lg}}}\
 186    %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 187    %{pthread:-lpthreads} -lc"
 188
 189 #undef LINK_SPEC
 190 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 191    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 192    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}"
 193
 194 #undef STARTFILE_SPEC
 195 #define STARTFILE_SPEC "%{!shared:\
 196    %{mpe:%{pg:/usr/lpp/ppe.poe/lib/gcrt0.o}\
 197          %{!pg:%{p:/usr/lpp/ppe.poe/lib/mcrt0.o}\
 198                %{!p:/usr/lpp/ppe.poe/lib/crt0.o}}}\
 199    %{!mpe:\
 200      %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 201      %{!maix64:\
 202        %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 203        %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}}"
 204
 205 /* Since there are separate multilibs for pthreads, determine the
 206    thread model based on the command-line arguments.  */
 207 #define THREAD_MODEL_SPEC "%{pthread:posix}%{!pthread:single}"
 208
 209 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 210
 211 #undef PTRDIFF_TYPE
 212 #define PTRDIFF_TYPE "long int"
 213
 214 /* __WCHAR_TYPE__ is dynamic, so do not define it statically.  */
 215 #define NO_BUILTIN_WCHAR_TYPE
 216 #undef WCHAR_TYPE
 217 #undef WCHAR_TYPE_SIZE
 218
 219 /* Width of wchar_t in bits.  */
 220 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 221 #define MAX_WCHAR_TYPE_SIZE 32
 222
 223 /* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
 224    and "cror 31,31,31" for POWER architecture.  */
 225
 226 #undef RS6000_CALL_GLUE
 227 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
 228
 229 /* AIX 4.2 and above provides initialization and finalization function
 230    support from linker command line.  */
 231 #undef HAS_INIT_SECTION
 232 #define HAS_INIT_SECTION
 233
 234 #undef LD_INIT_SWITCH
 235 #define LD_INIT_SWITCH "-binitfini"