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) 1998-2016 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       rs6000_isa_flags |= OPTION_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   %{!mpowerpc64: %(asm_default)} \
  53   %{mpowerpc64: -mppc64}}} \
  54 %{mcpu=power3: -m620} \
  55 %{mcpu=power4: -m620} \
  56 %{mcpu=powerpc: -mppc} \
  57 %{mcpu=rs64a: -mppc} \
  58 %{mcpu=601: -m601} \
  59 %{mcpu=602: -mppc} \
  60 %{mcpu=603: -m603} \
  61 %{mcpu=603e: -m603} \
  62 %{mcpu=604: -m604} \
  63 %{mcpu=604e: -m604} \
  64 %{mcpu=620: -m620} \
  65 %{mcpu=630: -m620}"
  66
  67 #undef  ASM_DEFAULT_SPEC
  68 #define ASM_DEFAULT_SPEC "-mppc"
  69
  70 #undef TARGET_OS_CPP_BUILTINS
  71 #define TARGET_OS_CPP_BUILTINS()     \
  72   do                                 \
  73     {                                \
  74       builtin_define ("_AIX43");     \
  75       TARGET_OS_AIX_CPP_BUILTINS (); \
  76     }                                \
  77   while (0)
  78
  79 #undef CPP_SPEC
  80 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
  81    %{ansi: -D_ANSI_C_SOURCE}\
  82    %{maix64: -D__64BIT__}\
  83    %{mpe: -I%R/usr/lpp/ppe.poe/include}\
  84    %{pthread: -D_THREAD_SAFE}"
  85
  86 /* The GNU C++ standard library requires that these macros be
  87    defined.  */
  88 #undef CPLUSPLUS_CPP_SPEC
  89 #define CPLUSPLUS_CPP_SPEC                      \
  90   "-D_ALL_SOURCE                                \
  91    %{maix64: -D__64BIT__}                       \
  92    %{mpe: -I%R/usr/lpp/ppe.poe/include}         \
  93    %{pthread: -D_THREAD_SAFE}"
  94
  95 #undef TARGET_DEFAULT
  96 #define TARGET_DEFAULT 0
  97
  98 #undef PROCESSOR_DEFAULT
  99 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e
 100
 101 /* AIX does not support Altivec.  */
 102 #undef  TARGET_ALTIVEC
 103 #define TARGET_ALTIVEC 0
 104 #undef  TARGET_ALTIVEC_ABI
 105 #define TARGET_ALTIVEC_ABI 0
 106 #undef  TARGET_EXTRA_BUILTINS
 107 #define TARGET_EXTRA_BUILTINS 0
 108
 109
 110 /* Define this macro as a C expression for the initializer of an
 111    array of string to tell the driver program which options are
 112    defaults for this target and thus do not need to be handled
 113    specially when using `MULTILIB_OPTIONS'.
 114
 115    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
 116    the target makefile fragment or if none of the options listed in
 117    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
 118
 119 #undef  MULTILIB_DEFAULTS
 120 #define MULTILIB_DEFAULTS { "mcpu=common" }
 121
 122 #undef LIB_SPEC
 123 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 124    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
 125    %{!maix64:%{!shared:%{g*:-lg}}}\
 126    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
 127    %{pthread:-L%R/usr/lib/threads -lpthreads -lc_r %R/usr/lib/libc.a}\
 128    %{!pthread:-lc}"
 129
 130 #undef LINK_SPEC
 131 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
 132    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
 133    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
 134    %{mpe:-binitfini:poe_remote_main}"
 135
 136 #undef STARTFILE_SPEC
 137 #define STARTFILE_SPEC "%{!shared:\
 138    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
 139    %{!maix64:\
 140      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
 141      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
 142
 143 /* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
 144
 145 #undef PTRDIFF_TYPE
 146 #define PTRDIFF_TYPE "long int"
 147
 148 /* AIX 4.2 and above provides initialization and finalization function
 149    support from linker command line.  */
 150 #undef HAS_INIT_SECTION
 151 #define HAS_INIT_SECTION
 152
 153 #undef LD_INIT_SWITCH
 154 #define LD_INIT_SWITCH "-binitfini"
 155
 156 /* The IBM AIX 4.x assembler doesn't support forward references in
 157    .set directives.  We handle this by deferring the output of .set
 158    directives to the end of the compilation unit.  */
 159 #define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) true
 160
 161 /* This target uses the aix64.opt file.  */
 162 #define TARGET_USES_AIX64_OPT 1
 163
 164 #define TARGET_AIX_VERSION 43
 165
 166 #undef TARGET_LIBC_HAS_FUNCTION
 167 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function