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) 1998-2012 Free Software Foundation, Inc.
   4    Contributed by David Edelsohn (edelsohn@gnu.org).
   5
   6    This file is part of GCC.
   7
   8    GCC is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published
  10    by the Free Software Foundation; either version 3, or (at your
  11    option) any later version.
  12
  13    GCC is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GCC; see the file COPYING3.  If not see
  20    <http://www.gnu.org/licenses/>.  */
  21
  22 /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
  23    get control in TARGET_OPTION_OVERRIDE.  */
  24
  25 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
  26 do {                                                                    \
  27   if (TARGET_64BIT && ! TARGET_POWERPC64)                               \
  28     {                                                                   \
  29       target_flags |= MASK_POWERPC64;                                   \
  30       warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
  31     }                                                                   \
  32   if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128)                      \
  33     {                                                                   \
  34       rs6000_long_double_type_size = 64;                                \
  35       if (global_options_set.x_rs6000_long_double_type_size)            \
  36         warning (0, "soft-float and long-double-128 are incompatible"); \
  37     }                                                                   \
  38   if (TARGET_POWERPC64 && ! TARGET_64BIT)                               \
  39     {                                                                   \
  40       error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
  41     }                                                                   \
  42 } while (0);
  43
  44 #undef ASM_SPEC
  45 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
  46
  47 /* Common ASM definitions used by ASM_SPEC amongst the various targets
  48    for handling -mcpu=xxx switches.  */
  49 #undef ASM_CPU_SPEC
  50 #define ASM_CPU_SPEC \
  51 "%{!mcpu*: %{!maix64: \
  52   %{mpowerpc*: %{!mpowerpc64: -mppc}} \
  53   %{mpowerpc64: -mppc64} \
  54   %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \
  55 %{mcpu=common: -mcom} \
  56 %{mcpu=power3: -m620} \
  57 %{mcpu=power4: -m620} \
  58 %{mcpu=powerpc: -mppc} \
  59 %{mcpu=rs64a: -mppc} \
  60 %{mcpu=601: -m601} \
  61 %{mcpu=602: -mppc} \
  62 %{mcpu=603: -m603} \
  63 %{mcpu=603e: -m603} \
  64 %{mcpu=604: -m604} \
  65 %{mcpu=604e: -m604} \
  66 %{mcpu=620: -m620} \
  67 %{mcpu=630: -m620}"
  68
  69 #undef  ASM_DEFAULT_SPEC
  70 #define ASM_DEFAULT_SPEC "-mcom"
  71
  72 #undef TARGET_OS_CPP_BUILTINS
  73 #define TARGET_OS_CPP_BUILTINS()     \
  74   do                                 \
  75     {                                \
  76       builtin_define ("_AIX43");     \
  77       TARGET_OS_AIX_CPP_BUILTINS (); \
  78     }                                \
  79   while (0)
  80
  81 #undef CPP_SPEC
  82 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
  83    %{ansi: -D_ANSI_C_SOURCE}\
  84    %{maix64: -D__64BIT__}\
  85    %{mpe: -I%R/usr/lpp/ppe.poe/include}\
  86    %{pthread: -D_THREAD_SAFE}"
  87
  88 /* The GNU C++ standard library requires that these macros be
  89    defined.  */
  90 #undef CPLUSPLUS_CPP_SPEC
  91 #define CPLUSPLUS_CPP_SPEC                      \
  92   "-D_ALL_SOURCE                                \
  93    %{maix64: -D__64BIT__}                       \
  94    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
  95    %{pthread: -D_THREAD_SAFE}"
  96
  97 #undef TARGET_DEFAULT
  98 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
  99
 100 #undef PROCESSOR_DEFAULT
 101 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e
 102
 103 /* AIX does not support Altivec.  */
 104 #undef  TARGET_ALTIVEC
 105 #define TARGET_ALTIVEC 0
 106 #undef  TARGET_ALTIVEC_ABI
 107 #define TARGET_ALTIVEC_ABI 0
 108
 109 /* Define this macro as a C expression for the initializer of an
 110    array of string to tell the driver program which options are
 111    defaults for this target and thus do not need to be handled
 112    specially when using `MULTILIB_OPTIONS'.
 113
 114    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 115    the target makefile fragment or if none of the options listed in
 116    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 117
 118 #undef  MULTILIB_DEFAULTS
 119 #define MULTILIB_DEFAULTS { "mcpu=common" }
 120
 121 #undef LIB_SPEC
 122 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 123    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 124    %{!maix64:%{!shared:%{g*:-lg}}}\
 125    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 126    %{pthread:-L%R/usr/lib/threads -lpthreads -lc_r %R/usr/lib/libc.a}\
 127    %{!pthread:-lc}"
 128
 129 #undef LINK_SPEC
 130 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 131    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 132    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 133    %{mpe:-binitfini:poe_remote_main}"
 134
 135 #undef STARTFILE_SPEC
 136 #define STARTFILE_SPEC "%{!shared:\
 137    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 138    %{!maix64:\
 139      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 140      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 141
 142 /* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 143
 144 #undef PTRDIFF_TYPE
 145 #define PTRDIFF_TYPE "long int"
 146
 147 /* AIX 4 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
 148    and "cror 31,31,31" for POWER architecture.  */
 149
 150 #undef RS6000_CALL_GLUE
 151 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
 152
 153 /* AIX 4.2 and above provides initialization and finalization function
 154    support from linker command line.  */
 155 #undef HAS_INIT_SECTION
 156 #define HAS_INIT_SECTION
 157
 158 #undef LD_INIT_SWITCH
 159 #define LD_INIT_SWITCH "-binitfini"
 160
 161 /* The IBM AIX 4.x assembler doesn't support forward references in
 162    .set directives.  We handle this by deferring the output of .set
 163    directives to the end of the compilation unit.  */
 164 #define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) true
 165
 166 /* This target uses the aix64.opt file.  */
 167 #define TARGET_USES_AIX64_OPT 1
 168
 169 #define TARGET_AIX_VERSION 43