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 /* AIX V5 and above support 64-bit executables.  */
  24 #undef  SUBSUBTARGET_SWITCHES
  25 #define SUBSUBTARGET_SWITCHES                                   \
  26   {"aix64",             MASK_64BIT | MASK_POWERPC64 | MASK_POWERPC,     \
  27    N_("Compile for 64-bit pointers") },                                 \
  28   {"aix32",             - (MASK_64BIT | MASK_POWERPC64),                \
  29    N_("Compile for 32-bit pointers") },                                 \
  30   {"pe",                0,                                              \
  31    N_("Support message passing with the Parallel Environment") },
  32
  33 /* Sometimes certain combinations of command options do not make sense
  34    on a particular target machine.  You can define a macro
  35    `OVERRIDE_OPTIONS' to take account of this.  This macro, if
  36    defined, is executed once just after all the command options have
  37    been parsed.
  38
  39    The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
  40    get control.  */
  41
  42 #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
  43 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
  44 do {                                                                    \
  45   if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS))               \
  46     {                                                                   \
  47       target_flags &= ~NON_POWERPC_MASKS;                               \
  48       warning ("-maix64 and POWER architecture are incompatible");      \
  49     }                                                                   \
  50   if (TARGET_64BIT && ! TARGET_POWERPC64)                               \
  51     {                                                                   \
  52       target_flags |= MASK_POWERPC64;                                   \
  53       warning ("-maix64 requires PowerPC64 architecture remain enabled"); \
  54     }                                                                   \
  55   if (TARGET_POWERPC64 && ! TARGET_64BIT)                               \
  56     {                                                                   \
  57       error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
  58     }                                                                   \
  59 } while (0);
  60
  61 #undef ASM_SPEC
  62 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
  63
  64 /* Common ASM definitions used by ASM_SPEC amongst the various targets
  65    for handling -mcpu=xxx switches.  */
  66 #undef ASM_CPU_SPEC
  67 #define ASM_CPU_SPEC \
  68 "%{!mcpu*: %{!maix64: \
  69   %{mpowerpc64: -mppc64} \
  70   %{!mpower64: %(asm_default)}}} \
  71 %{mcpu=power3: -m620} \
  72 %{mcpu=power4: -m620} \
  73 %{mcpu=powerpc: -mppc} \
  74 %{mcpu=rs64a: -mppc} \
  75 %{mcpu=603: -m603} \
  76 %{mcpu=603e: -m603} \
  77 %{mcpu=604: -m604} \
  78 %{mcpu=604e: -m604} \
  79 %{mcpu=620: -m620} \
  80 %{mcpu=630: -m620} \
  81 %{mcpu=970: -m620} \
  82 %{mcpu=G5: -m620}"
  83
  84 #undef  ASM_DEFAULT_SPEC
  85 #define ASM_DEFAULT_SPEC "-mppc"
  86
  87 #undef TARGET_OS_CPP_BUILTINS
  88 #define TARGET_OS_CPP_BUILTINS()     \
  89   do                                 \
  90     {                                \
  91       builtin_define ("_AIX43");     \
  92       builtin_define ("_AIX51");     \
  93       builtin_define ("_AIX52");     \
  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.  Synchronize with libstdc++ os_defines.h.  */
 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_POWERPC | MASK_NEW_MNEMONICS)
 116
 117 #undef  PROCESSOR_DEFAULT
 118 #define PROCESSOR_DEFAULT PROCESSOR_PPC630
 119 #undef  PROCESSOR_DEFAULT64
 120 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
 121
 122 #undef  TARGET_POWER
 123 #define TARGET_POWER 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
 136 #undef LIB_SPEC
 137 #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
 138    %{p:-L/lib/profiled -L/usr/lib/profiled}\
 139    %{!maix64:%{!shared:%{g*:-lg}}}\
 140    %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 141    %{pthread:-lpthreads} -lc"
 142
 143 #undef LINK_SPEC
 144 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 145    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 146    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 147    %{mpe:-binitfini:poe_remote_main}"
 148
 149 #undef STARTFILE_SPEC
 150 #define STARTFILE_SPEC "%{!shared:\
 151    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 152    %{!maix64:\
 153      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 154      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 155
 156 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 157
 158 #undef PTRDIFF_TYPE
 159 #define PTRDIFF_TYPE "long int"
 160
 161 /* Type used for wchar_t, as a string used in a declaration.  */
 162 #undef  WCHAR_TYPE
 163 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
 164
 165 /* Width of wchar_t in bits.  */
 166 #undef  WCHAR_TYPE_SIZE
 167 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
 168
 169 /* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
 170    and "cror 31,31,31" for POWER architecture.  */
 171
 172 #undef RS6000_CALL_GLUE
 173 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
 174
 175 /* AIX 4.2 and above provides initialization and finalization function
 176    support from linker command line.  */
 177 #undef HAS_INIT_SECTION
 178 #define HAS_INIT_SECTION
 179
 180 #undef LD_INIT_SWITCH
 181 #define LD_INIT_SWITCH "-binitfini"
 182
 183 /* AIX 5.2 has the float and long double forms of math functions.  */
 184 #undef TARGET_C99_FUNCTIONS
 185 #define TARGET_C99_FUNCTIONS  1
 186
 187 #ifndef _AIX52
 188 extern long long int    atoll(const char *);
 189 #endif