gcc/config/rs6000/aix43.h

   1 /* Definitions of target machine for GNU compiler,
   2    for IBM RS/6000 POWER running AIX version 4.3.
   3    Copyright (C) 1998, 1999, 2000, 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 4.3 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_AIX -D_AIX32 -D_AIX41 -D_AIX43 \
 103 -D_LONG_LONG -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__64BIT__ -D_ARCH_PPC -D__LONG_MAX__=9223372036854775807L}\
 109    %{mpe: -I/usr/lpp/ppe.poe/include}\
 110    %{pthread: -D_THREAD_SAFE}\
 111    %(cpp_cpu)"
 112
 113 /* The GNU C++ standard library requires that these macros be
 114    defined.  */
 115 #undef CPLUSPLUS_CPP_SPEC
 116 #define CPLUSPLUS_CPP_SPEC                      \
 117   "-D_XOPEN_SOURCE=500                          \
 118    -D_XOPEN_SOURCE_EXTENDED=1                   \
 119    -D_LARGE_FILE_API                            \
 120    -D_ALL_SOURCE                                \
 121    %{maix64: -D__64BIT__ -D_ARCH_PPC -D__LONG_MAX__=9223372036854775807L}\
 122    %{mpe: -I/usr/lpp/ppe.poe/include}\
 123    %{pthread: -D_THREAD_SAFE}\
 124    %(cpp_cpu)"
 125
 126 /* Common CPP definitions used by CPP_SPEC among the various targets
 127    for handling -mcpu=xxx switches.  */
 128 #undef CPP_CPU_SPEC
 129 #define CPP_CPU_SPEC \
 130 "%{!mcpu*: %{!maix64: \
 131   %{mpower: %{!mpower2: -D_ARCH_PWR}} \
 132   %{mpower2: -D_ARCH_PWR2} \
 133   %{mpowerpc*: -D_ARCH_PPC} \
 134   %{!mpower*: %{!mpowerpc*: %(cpp_default)}}}} \
 135 %{mcpu=common: -D_ARCH_COM} \
 136 %{mcpu=power: -D_ARCH_PWR} \
 137 %{mcpu=power2: -D_ARCH_PWR2} \
 138 %{mcpu=powerpc: -D_ARCH_PPC} \
 139 %{mcpu=rios: -D_ARCH_PWR} \
 140 %{mcpu=rios1: -D_ARCH_PWR} \
 141 %{mcpu=rios2: -D_ARCH_PWR2} \
 142 %{mcpu=rsc: -D_ARCH_PWR} \
 143 %{mcpu=rsc1: -D_ARCH_PWR} \
 144 %{mcpu=rs64a: -D_ARCH_PPC} \
 145 %{mcpu=403: -D_ARCH_PPC} \
 146 %{mcpu=505: -D_ARCH_PPC} \
 147 %{mcpu=601: -D_ARCH_PPC -D_ARCH_PWR} \
 148 %{mcpu=602: -D_ARCH_PPC} \
 149 %{mcpu=603: -D_ARCH_PPC} \
 150 %{mcpu=603e: -D_ARCH_PPC} \
 151 %{mcpu=604: -D_ARCH_PPC} \
 152 %{mcpu=620: -D_ARCH_PPC} \
 153 %{mcpu=630: -D_ARCH_PPC} \
 154 %{mcpu=821: -D_ARCH_PPC} \
 155 %{mcpu=860: -D_ARCH_PPC}"
 156
 157 #undef  CPP_DEFAULT_SPEC
 158 #define CPP_DEFAULT_SPEC "-D_ARCH_COM"
 159
 160 #undef TARGET_DEFAULT
 161 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
 162
 163 #undef PROCESSOR_DEFAULT
 164 #define PROCESSOR_DEFAULT PROCESSOR_PPC604
 165
 166 /* Define this macro as a C expression for the initializer of an
 167    array of string to tell the driver program which options are
 168    defaults for this target and thus do not need to be handled
 169    specially when using `MULTILIB_OPTIONS'.
 170
 171    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 172    the target makefile fragment or if none of the options listed in
 173    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 174
 175 #undef  MULTILIB_DEFAULTS
 176 #define MULTILIB_DEFAULTS { "mcpu=common" }
 177
 178 #undef LIB_SPEC
 179 #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
 180    %{p:-L/lib/profiled -L/usr/lib/profiled}\
 181    %{!maix64:%{!shared:%{g*:-lg}}}\
 182    %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 183    %{pthread:-L/usr/lib/threads -lpthreads -lc_r /usr/lib/libc.a}\
 184    %{!pthread:-lc}"
 185
 186 #undef LINK_SPEC
 187 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 188    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 189    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}"
 190
 191 #undef STARTFILE_SPEC
 192 #define STARTFILE_SPEC "%{!shared:\
 193    %{mpe:%{pg:/usr/lpp/ppe.poe/lib/gcrt0.o}\
 194          %{!pg:%{p:/usr/lpp/ppe.poe/lib/mcrt0.o}\
 195                %{!p:/usr/lpp/ppe.poe/lib/crt0.o}}}\
 196    %{!mpe:\
 197      %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 198      %{!maix64:\
 199        %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 200        %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}}"
 201
 202 /* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 203
 204 #undef PTRDIFF_TYPE
 205 #define PTRDIFF_TYPE "long int"
 206
 207 /* AIX 4 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
 208    and "cror 31,31,31" for POWER architecture.  */
 209
 210 #undef RS6000_CALL_GLUE
 211 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
 212
 213 /* AIX 4.2 and above provides initialization and finalization function
 214    support from linker command line.  */
 215 #undef HAS_INIT_SECTION
 216 #define HAS_INIT_SECTION
 217
 218 #undef LD_INIT_SWITCH
 219 #define LD_INIT_SWITCH "-binitfini"