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 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 /* Enable AIX XL compiler calling convention breakage compatibility.  */
  25 #define MASK_XL_CALL            0x40000000
  26 #define TARGET_XL_CALL          (target_flags & MASK_XL_CALL)
  27 #undef  SUBTARGET_SWITCHES
  28 #define SUBTARGET_SWITCHES                                      \
  29   {"aix64",             MASK_64BIT | MASK_POWERPC64 | MASK_POWERPC}, \
  30   {"aix32",             - (MASK_64BIT | MASK_POWERPC64)},       \
  31   {"xl-call",           MASK_XL_CALL},                          \
  32   {"no-xl-call",        - MASK_XL_CALL},                        \
  33   {"threads",           0},                                     \
  34   {"pe",                0},
  35
  36 /* Sometimes certain combinations of command options do not make sense
  37    on a particular target machine.  You can define a macro
  38    `OVERRIDE_OPTIONS' to take account of this.  This macro, if
  39    defined, is executed once just after all the command options have
  40    been parsed.
  41
  42    The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
  43    get control.  */
  44
  45 #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2 | MASK_STRING)
  46 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
  47 do {                                                                    \
  48   if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS))               \
  49     {                                                                   \
  50       target_flags &= ~NON_POWERPC_MASKS;                               \
  51       warning ("-maix64 and POWER architecture are incompatible.");     \
  52     }                                                                   \
  53   if (TARGET_64BIT && ! (target_flags & MASK_POWERPC64))                \
  54     {                                                                   \
  55       target_flags |= MASK_POWERPC64;                                   \
  56       warning ("-maix64 requires PowerPC64 architecture remain enabled."); \
  57     }                                                                   \
  58 } while (0);
  59
  60 #include "rs6000/rs6000.h"
  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=403: -mppc} \
  85 %{mcpu=505: -mppc} \
  86 %{mcpu=601: -m601} \
  87 %{mcpu=602: -mppc} \
  88 %{mcpu=603: -m603} \
  89 %{mcpu=603e: -m603} \
  90 %{mcpu=604: -m604} \
  91 %{mcpu=604e: -m604} \
  92 %{mcpu=620: -mppc} \
  93 %{mcpu=821: -mppc} \
  94 %{mcpu=860: -mppc}"
  95
  96 #undef  ASM_DEFAULT_SPEC
  97 #define ASM_DEFAULT_SPEC "-mcom"
  98
  99 #undef CPP_PREDEFINES
 100 #define CPP_PREDEFINES "-D_IBMR2 -D_POWER -D_AIX -D_AIX32 -D_AIX41 -D_AIX43 \
 101 -D_LONG_LONG -Asystem(unix) -Asystem(aix)"
 102
 103 #undef CPP_SPEC
 104 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
 105    %{maix64: -D__64BIT__ -D_ARCH_PPC}\
 106    %{mpe: -I/usr/lpp/ppe.poe/include}\
 107    %{mthreads: -D_THREAD_SAFE}\
 108    %(cpp_cpu)"
 109
 110 /* Common CPP definitions used by CPP_SPEC among the various targets
 111    for handling -mcpu=xxx switches.  */
 112 #undef CPP_CPU_SPEC
 113 #define CPP_CPU_SPEC \
 114 "%{!mcpu*: %{!maix64: \
 115   %{mpower: %{!mpower2: -D_ARCH_PWR}} \
 116   %{mpower2: -D_ARCH_PWR2} \
 117   %{mpowerpc*: -D_ARCH_PPC} \
 118   %{!mpower*: %{!mpowerpc*: %(cpp_default)}}}} \
 119 %{mcpu=common: -D_ARCH_COM} \
 120 %{mcpu=power: -D_ARCH_PWR} \
 121 %{mcpu=power2: -D_ARCH_PWR2} \
 122 %{mcpu=powerpc: -D_ARCH_PPC} \
 123 %{mcpu=rios: -D_ARCH_PWR} \
 124 %{mcpu=rios1: -D_ARCH_PWR} \
 125 %{mcpu=rios2: -D_ARCH_PWR2} \
 126 %{mcpu=rsc: -D_ARCH_PWR} \
 127 %{mcpu=rsc1: -D_ARCH_PWR} \
 128 %{mcpu=403: -D_ARCH_PPC} \
 129 %{mcpu=505: -D_ARCH_PPC} \
 130 %{mcpu=601: -D_ARCH_PPC -D_ARCH_PWR} \
 131 %{mcpu=602: -D_ARCH_PPC} \
 132 %{mcpu=603: -D_ARCH_PPC} \
 133 %{mcpu=603e: -D_ARCH_PPC} \
 134 %{mcpu=604: -D_ARCH_PPC} \
 135 %{mcpu=620: -D_ARCH_PPC} \
 136 %{mcpu=821: -D_ARCH_PPC} \
 137 %{mcpu=860: -D_ARCH_PPC}"
 138
 139 #undef  CPP_DEFAULT_SPEC
 140 #define CPP_DEFAULT_SPEC "-D_ARCH_COM"
 141
 142 #undef TARGET_DEFAULT
 143 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
 144
 145 #undef PROCESSOR_DEFAULT
 146 #define PROCESSOR_DEFAULT PROCESSOR_PPC604
 147
 148 /* Define this macro as a C expression for the initializer of an
 149    array of string to tell the driver program which options are
 150    defaults for this target and thus do not need to be handled
 151    specially when using `MULTILIB_OPTIONS'.
 152
 153    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 154    the target makefile fragment or if none of the options listed in
 155    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 156
 157 #undef  MULTILIB_DEFAULTS
 158 #define MULTILIB_DEFAULTS { "mcpu=common" }
 159
 160 /* These are not necessary when we pass -u to the assembler, and undefining
 161    them saves a great deal of space in object files.  */
 162
 163 #undef ASM_OUTPUT_EXTERNAL
 164 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
 165 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)   \
 166 { rtx _symref = XEXP (DECL_RTL (DECL), 0);      \
 167   if ((TREE_CODE (DECL) == VAR_DECL             \
 168        || TREE_CODE (DECL) == FUNCTION_DECL)    \
 169       && (NAME)[strlen (NAME) - 1] != ']')      \
 170     {                                           \
 171       char *_name = (char *) permalloc (strlen (XSTR (_symref, 0)) + 5); \
 172       strcpy (_name, XSTR (_symref, 0));        \
 173       strcat (_name, TREE_CODE (DECL) == FUNCTION_DECL ? "[DS]" : "[RW]"); \
 174       XSTR (_symref, 0) = _name;                \
 175     }                                           \
 176 }
 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    %{mthreads:-L/usr/lib/threads -lpthreads -lc_r /usr/lib/libc.a}\
 184    %{!mthreads:-lc}"
 185
 186 #undef LINK_SPEC
 187 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 188    %{static:-bnso %(link_syscalls) } %{!maix64:%{!shared:%{g*: %(link_libg) }}}\
 189    %{shared:-bM:SRE %{!e:-bnoentry}} %{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        %{mthreads:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 200        %{!mthreads:%{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