old-autovect-branch/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, 2003, 2004, 2005
   4    Free Software Foundation, Inc.
   5    Contributed by David Edelsohn (edelsohn@gnu.org).
   6
   7    This file is part of GCC.
   8
   9    GCC is free software; you can redistribute it and/or modify it
  10    under the terms of the GNU General Public License as published
  11    by the Free Software Foundation; either version 2, or (at your
  12    option) any later version.
  13
  14    GCC is distributed in the hope that it will be useful, but WITHOUT
  15    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  16    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  17    License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with GCC; see the file COPYING.  If not, write to the
  21    Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
  22    MA 02110-1301, USA.  */
  23
  24 /* Sometimes certain combinations of command options do not make sense
  25    on a particular target machine.  You can define a macro
  26    `OVERRIDE_OPTIONS' to take account of this.  This macro, if
  27    defined, is executed once just after all the command options have
  28    been parsed.
  29
  30    The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
  31    get control.  */
  32
  33 #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
  34 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
  35 do {                                                                    \
  36   if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS))               \
  37     {                                                                   \
  38       target_flags &= ~NON_POWERPC_MASKS;                               \
  39       warning (0, "-maix64 and POWER architecture are incompatible");   \
  40     }                                                                   \
  41   if (TARGET_64BIT && ! TARGET_POWERPC64)                               \
  42     {                                                                   \
  43       target_flags |= MASK_POWERPC64;                                   \
  44       warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
  45     }                                                                   \
  46   if (TARGET_POWERPC64 && ! TARGET_64BIT)                               \
  47     {                                                                   \
  48       error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
  49     }                                                                   \
  50 } while (0);
  51
  52 #undef ASM_SPEC
  53 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
  54
  55 /* Common ASM definitions used by ASM_SPEC amongst the various targets
  56    for handling -mcpu=xxx switches.  */
  57 #undef ASM_CPU_SPEC
  58 #define ASM_CPU_SPEC \
  59 "%{!mcpu*: %{!maix64: \
  60   %{mpower: %{!mpower2: -mpwr}} \
  61   %{mpower2: -mpwr2} \
  62   %{mpowerpc*: %{!mpowerpc64: -mppc}} \
  63   %{mpowerpc64: -mppc64} \
  64   %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \
  65 %{mcpu=common: -mcom} \
  66 %{mcpu=power: -mpwr} \
  67 %{mcpu=power2: -mpwr2} \
  68 %{mcpu=power3: -m620} \
  69 %{mcpu=power4: -m620} \
  70 %{mcpu=powerpc: -mppc} \
  71 %{mcpu=rios: -mpwr} \
  72 %{mcpu=rios1: -mpwr} \
  73 %{mcpu=rios2: -mpwr2} \
  74 %{mcpu=rsc: -mpwr} \
  75 %{mcpu=rsc1: -mpwr} \
  76 %{mcpu=rs64a: -mppc} \
  77 %{mcpu=601: -m601} \
  78 %{mcpu=602: -mppc} \
  79 %{mcpu=603: -m603} \
  80 %{mcpu=603e: -m603} \
  81 %{mcpu=604: -m604} \
  82 %{mcpu=604e: -m604} \
  83 %{mcpu=620: -m620} \
  84 %{mcpu=630: -m620}"
  85
  86 #undef  ASM_DEFAULT_SPEC
  87 #define ASM_DEFAULT_SPEC "-mcom"
  88
  89 #undef TARGET_OS_CPP_BUILTINS
  90 #define TARGET_OS_CPP_BUILTINS()     \
  91   do                                 \
  92     {                                \
  93       builtin_define ("_AIX43");     \
  94       TARGET_OS_AIX_CPP_BUILTINS (); \
  95     }                                \
  96   while (0)
  97
  98 #undef CPP_SPEC
  99 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
 100    %{ansi: -D_ANSI_C_SOURCE}\
 101    %{maix64: -D__64BIT__}\
 102    %{mpe: -I/usr/lpp/ppe.poe/include}\
 103    %{pthread: -D_THREAD_SAFE}"
 104
 105 /* The GNU C++ standard library requires that these macros be
 106    defined.  */
 107 #undef CPLUSPLUS_CPP_SPEC
 108 #define CPLUSPLUS_CPP_SPEC                      \
 109   "-D_ALL_SOURCE                                \
 110    %{maix64: -D__64BIT__}                       \
 111    %{mpe: -I/usr/lpp/ppe.poe/include}           \
 112    %{pthread: -D_THREAD_SAFE}"
 113
 114 #undef TARGET_DEFAULT
 115 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
 116
 117 #undef PROCESSOR_DEFAULT
 118 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e
 119
 120 /* Define this macro as a C expression for the initializer of an
 121    array of string to tell the driver program which options are
 122    defaults for this target and thus do not need to be handled
 123    specially when using `MULTILIB_OPTIONS'.
 124
 125    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 126    the target makefile fragment or if none of the options listed in
 127    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 128
 129 #undef  MULTILIB_DEFAULTS
 130 #define MULTILIB_DEFAULTS { "mcpu=common" }
 131
 132 #undef LIB_SPEC
 133 #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
 134    %{p:-L/lib/profiled -L/usr/lib/profiled}\
 135    %{!maix64:%{!shared:%{g*:-lg}}}\
 136    %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 137    %{pthread:-L/usr/lib/threads -lpthreads -lc_r /usr/lib/libc.a}\
 138    %{!pthread:-lc}"
 139
 140 #undef LINK_SPEC
 141 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 142    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 143    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 144    %{mpe:-binitfini:poe_remote_main}"
 145
 146 #undef STARTFILE_SPEC
 147 #define STARTFILE_SPEC "%{!shared:\
 148    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 149    %{!maix64:\
 150      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 151      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 152
 153 /* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 154
 155 #undef PTRDIFF_TYPE
 156 #define PTRDIFF_TYPE "long int"
 157
 158 /* AIX 4 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
 159    and "cror 31,31,31" for POWER architecture.  */
 160
 161 #undef RS6000_CALL_GLUE
 162 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
 163
 164 /* AIX 4.2 and above provides initialization and finalization function
 165    support from linker command line.  */
 166 #undef HAS_INIT_SECTION
 167 #define HAS_INIT_SECTION
 168
 169 #undef LD_INIT_SWITCH
 170 #define LD_INIT_SWITCH "-binitfini"
 171
 172 /* The IBM AIX 4.x assembler doesn't support forward references in
 173    .set directives.  We handle this by deferring the output of .set
 174    directives to the end of the compilation unit.  */
 175 #define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) true
 176
 177 /* This target uses the aix64.opt file.  */
 178 #define TARGET_USES_AIX64_OPT 1