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, 2006,
   4    2007, 2009, 2010 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 3, 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 COPYING3.  If not see
  21    <http://www.gnu.org/licenses/>.  */
  22
  23 /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
  24    get control in TARGET_OPTION_OVERRIDE.  */
  25
  26 #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
  27 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
  28 do {                                                                    \
  29   if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS))               \
  30     {                                                                   \
  31       target_flags &= ~NON_POWERPC_MASKS;                               \
  32       warning (0, "-maix64 and POWER architecture are incompatible");   \
  33     }                                                                   \
  34   if (TARGET_64BIT && ! TARGET_POWERPC64)                               \
  35     {                                                                   \
  36       target_flags |= MASK_POWERPC64;                                   \
  37       warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
  38     }                                                                   \
  39   if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128)                      \
  40     {                                                                   \
  41       rs6000_long_double_type_size = 64;                                \
  42       if (rs6000_explicit_options.long_double)                          \
  43         warning (0, "soft-float and long-double-128 are incompatible"); \
  44     }                                                                   \
  45   if (TARGET_POWERPC64 && ! TARGET_64BIT)                               \
  46     {                                                                   \
  47       error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
  48     }                                                                   \
  49 } while (0);
  50
  51 #undef ASM_SPEC
  52 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
  53
  54 /* Common ASM definitions used by ASM_SPEC amongst the various targets
  55    for handling -mcpu=xxx switches.  */
  56 #undef ASM_CPU_SPEC
  57 #define ASM_CPU_SPEC \
  58 "%{!mcpu*: %{!maix64: \
  59   %{mpower: %{!mpower2: -mpwr}} \
  60   %{mpower2: -mpwr2} \
  61   %{mpowerpc*: %{!mpowerpc64: -mppc}} \
  62   %{mpowerpc64: -mppc64} \
  63   %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \
  64 %{mcpu=common: -mcom} \
  65 %{mcpu=power: -mpwr} \
  66 %{mcpu=power2: -mpwr2} \
  67 %{mcpu=power3: -m620} \
  68 %{mcpu=power4: -m620} \
  69 %{mcpu=powerpc: -mppc} \
  70 %{mcpu=rios: -mpwr} \
  71 %{mcpu=rios1: -mpwr} \
  72 %{mcpu=rios2: -mpwr2} \
  73 %{mcpu=rsc: -mpwr} \
  74 %{mcpu=rsc1: -mpwr} \
  75 %{mcpu=rs64a: -mppc} \
  76 %{mcpu=601: -m601} \
  77 %{mcpu=602: -mppc} \
  78 %{mcpu=603: -m603} \
  79 %{mcpu=603e: -m603} \
  80 %{mcpu=604: -m604} \
  81 %{mcpu=604e: -m604} \
  82 %{mcpu=620: -m620} \
  83 %{mcpu=630: -m620}"
  84
  85 #undef  ASM_DEFAULT_SPEC
  86 #define ASM_DEFAULT_SPEC "-mcom"
  87
  88 #undef TARGET_OS_CPP_BUILTINS
  89 #define TARGET_OS_CPP_BUILTINS()     \
  90   do                                 \
  91     {                                \
  92       builtin_define ("_AIX43");     \
  93       TARGET_OS_AIX_CPP_BUILTINS (); \
  94     }                                \
  95   while (0)
  96
  97 #undef CPP_SPEC
  98 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
  99    %{ansi: -D_ANSI_C_SOURCE}\
 100    %{maix64: -D__64BIT__}\
 101    %{mpe: -I%R/usr/lpp/ppe.poe/include}\
 102    %{pthread: -D_THREAD_SAFE}"
 103
 104 /* The GNU C++ standard library requires that these macros be
 105    defined.  */
 106 #undef CPLUSPLUS_CPP_SPEC
 107 #define CPLUSPLUS_CPP_SPEC                      \
 108   "-D_ALL_SOURCE                                \
 109    %{maix64: -D__64BIT__}                       \
 110    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
 111    %{pthread: -D_THREAD_SAFE}"
 112
 113 #undef TARGET_DEFAULT
 114 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
 115
 116 #undef PROCESSOR_DEFAULT
 117 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e
 118
 119 /* AIX does not support Altivec.  */
 120 #undef  TARGET_ALTIVEC
 121 #define TARGET_ALTIVEC 0
 122 #undef  TARGET_ALTIVEC_ABI
 123 #define TARGET_ALTIVEC_ABI 0
 124
 125 /* Define this macro as a C expression for the initializer of an
 126    array of string to tell the driver program which options are
 127    defaults for this target and thus do not need to be handled
 128    specially when using `MULTILIB_OPTIONS'.
 129
 130    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 131    the target makefile fragment or if none of the options listed in
 132    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 133
 134 #undef  MULTILIB_DEFAULTS
 135 #define MULTILIB_DEFAULTS { "mcpu=common" }
 136
 137 #undef LIB_SPEC
 138 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 139    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 140    %{!maix64:%{!shared:%{g*:-lg}}}\
 141    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 142    %{pthread:-L%R/usr/lib/threads -lpthreads -lc_r %R/usr/lib/libc.a}\
 143    %{!pthread:-lc}"
 144
 145 #undef LINK_SPEC
 146 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 147    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 148    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 149    %{mpe:-binitfini:poe_remote_main}"
 150
 151 #undef STARTFILE_SPEC
 152 #define STARTFILE_SPEC "%{!shared:\
 153    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 154    %{!maix64:\
 155      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 156      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 157
 158 /* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 159
 160 #undef PTRDIFF_TYPE
 161 #define PTRDIFF_TYPE "long int"
 162
 163 /* AIX 4 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
 164    and "cror 31,31,31" for POWER architecture.  */
 165
 166 #undef RS6000_CALL_GLUE
 167 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
 168
 169 /* AIX 4.2 and above provides initialization and finalization function
 170    support from linker command line.  */
 171 #undef HAS_INIT_SECTION
 172 #define HAS_INIT_SECTION
 173
 174 #undef LD_INIT_SWITCH
 175 #define LD_INIT_SWITCH "-binitfini"
 176
 177 /* The IBM AIX 4.x assembler doesn't support forward references in
 178    .set directives.  We handle this by deferring the output of .set
 179    directives to the end of the compilation unit.  */
 180 #define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) true
 181
 182 /* This target uses the aix64.opt file.  */
 183 #define TARGET_USES_AIX64_OPT 1
 184
 185 #define TARGET_AIX_VERSION 43