gcc/config/rs6000/aix52.h

   1 /* Definitions of target machine for GNU compiler,
   2    for IBM RS/6000 POWER running AIX V5.2.
   3    Copyright (C) 2002, 2003, 2004, 2005 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 2, 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 COPYING.  If not, write to the
  20    Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  21    MA 02111-1307, USA.  */
  22
  23 /* Sometimes certain combinations of command options do not make sense
  24    on a particular target machine.  You can define a macro
  25    `OVERRIDE_OPTIONS' to take account of this.  This macro, if
  26    defined, is executed once just after all the command options have
  27    been parsed.
  28
  29    The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
  30    get control.  */
  31
  32 #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
  33 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
  34 do {                                                                    \
  35   if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS))               \
  36     {                                                                   \
  37       target_flags &= ~NON_POWERPC_MASKS;                               \
  38       warning (0, "-maix64 and POWER architecture are incompatible");   \
  39     }                                                                   \
  40   if (TARGET_64BIT && ! TARGET_POWERPC64)                               \
  41     {                                                                   \
  42       target_flags |= MASK_POWERPC64;                                   \
  43       warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
  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   %{mpowerpc64: -mppc64} \
  60   %{!mpower64: %(asm_default)}}} \
  61 %{mcpu=power3: -m620} \
  62 %{mcpu=power4: -m620} \
  63 %{mcpu=power5: -m620} \
  64 %{mcpu=powerpc: -mppc} \
  65 %{mcpu=rs64a: -mppc} \
  66 %{mcpu=603: -m603} \
  67 %{mcpu=603e: -m603} \
  68 %{mcpu=604: -m604} \
  69 %{mcpu=604e: -m604} \
  70 %{mcpu=620: -m620} \
  71 %{mcpu=630: -m620} \
  72 %{mcpu=970: -m620} \
  73 %{mcpu=G5: -m620}"
  74
  75 #undef  ASM_DEFAULT_SPEC
  76 #define ASM_DEFAULT_SPEC "-mppc"
  77
  78 #undef TARGET_OS_CPP_BUILTINS
  79 #define TARGET_OS_CPP_BUILTINS()     \
  80   do                                 \
  81     {                                \
  82       builtin_define ("_AIX43");     \
  83       builtin_define ("_AIX51");     \
  84       builtin_define ("_AIX52");     \
  85       TARGET_OS_AIX_CPP_BUILTINS (); \
  86     }                                \
  87   while (0)
  88
  89 #undef CPP_SPEC
  90 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}     \
  91   %{ansi: -D_ANSI_C_SOURCE}                     \
  92   %{maix64: -D__64BIT__}                        \
  93   %{mpe: -I/usr/lpp/ppe.poe/include}            \
  94   %{pthread: -D_THREAD_SAFE}"
  95
  96 /* The GNU C++ standard library requires that these macros be
  97    defined.  Synchronize with libstdc++ os_defines.h.  */
  98 #undef CPLUSPLUS_CPP_SPEC
  99 #define CPLUSPLUS_CPP_SPEC                      \
 100   "-D_ALL_SOURCE                                \
 101    %{maix64: -D__64BIT__}                       \
 102    %{mpe: -I/usr/lpp/ppe.poe/include}           \
 103    %{pthread: -D_THREAD_SAFE}"
 104
 105 #undef  TARGET_DEFAULT
 106 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
 107
 108 #undef  PROCESSOR_DEFAULT
 109 #define PROCESSOR_DEFAULT PROCESSOR_PPC630
 110 #undef  PROCESSOR_DEFAULT64
 111 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
 112
 113 #undef  TARGET_POWER
 114 #define TARGET_POWER 0
 115
 116 /* Define this macro as a C expression for the initializer of an
 117    array of string to tell the driver program which options are
 118    defaults for this target and thus do not need to be handled
 119    specially when using `MULTILIB_OPTIONS'.
 120
 121    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 122    the target makefile fragment or if none of the options listed in
 123    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 124
 125 #undef  MULTILIB_DEFAULTS
 126
 127 #undef LIB_SPEC
 128 #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
 129    %{p:-L/lib/profiled -L/usr/lib/profiled}\
 130    %{!maix64:%{!shared:%{g*:-lg}}}\
 131    %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 132    %{pthread:-lpthreads} -lc"
 133
 134 #undef LINK_SPEC
 135 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 136    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 137    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 138    %{mpe:-binitfini:poe_remote_main}"
 139
 140 #undef STARTFILE_SPEC
 141 #define STARTFILE_SPEC "%{!shared:\
 142    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 143    %{!maix64:\
 144      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 145      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 146
 147 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 148
 149 #undef PTRDIFF_TYPE
 150 #define PTRDIFF_TYPE "long int"
 151
 152 /* Type used for wchar_t, as a string used in a declaration.  */
 153 #undef  WCHAR_TYPE
 154 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 155
 156 /* Width of wchar_t in bits.  */
 157 #undef  WCHAR_TYPE_SIZE
 158 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 159
 160 /* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
 161    and "cror 31,31,31" for POWER architecture.  */
 162
 163 #undef RS6000_CALL_GLUE
 164 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
 165
 166 /* AIX 4.2 and above provides initialization and finalization function
 167    support from linker command line.  */
 168 #undef HAS_INIT_SECTION
 169 #define HAS_INIT_SECTION
 170
 171 #undef LD_INIT_SWITCH
 172 #define LD_INIT_SWITCH "-binitfini"
 173
 174 /* AIX 5.2 has the float and long double forms of math functions.  */
 175 #undef TARGET_C99_FUNCTIONS
 176 #define TARGET_C99_FUNCTIONS  1
 177
 178 #ifndef _AIX52
 179 extern long long int    atoll(const char *);
 180 #endif
 181
 182 /* This target uses the aix64.opt file.  */
 183 #define TARGET_USES_AIX64_OPT 1