gcc/config/ia64/hpux.h

   1 /* Definitions of target machine GNU compiler.  IA-64 version.
   2    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
   3    Free Software Foundation, Inc.
   4    Contributed by Steve Ellcey <sje@cup.hp.com> and
   5                   Reva Cuthbertson <reva@cup.hp.com>
   6
   7 This file is part of GCC.
   8
   9 GCC is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2, or (at your option)
  12 any later version.
  13
  14 GCC is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public 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 COPYING.  If not, write to
  21 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  22 Boston, MA 02110-1301, USA.  */
  23
  24 /* This macro is a C statement to print on `stderr' a string describing the
  25    particular machine description choice.  */
  26
  27 #define TARGET_VERSION fprintf (stderr, " (IA-64) HP-UX");
  28
  29 /* Enable HPUX ABI quirks.  */
  30 #undef  TARGET_HPUX
  31 #define TARGET_HPUX 1
  32
  33 #undef WCHAR_TYPE
  34 #define WCHAR_TYPE "unsigned int"
  35
  36 #undef WCHAR_TYPE_SIZE
  37 #define WCHAR_TYPE_SIZE 32
  38
  39 /* Target OS builtins.  */
  40 #define TARGET_OS_CPP_BUILTINS()                        \
  41 do {                                                    \
  42         builtin_assert("system=hpux");                  \
  43         builtin_assert("system=posix");                 \
  44         builtin_assert("system=unix");                  \
  45         builtin_define_std("hpux");                     \
  46         builtin_define_std("unix");                     \
  47         builtin_define("__IA64__");                     \
  48         builtin_define("_LONGLONG");                    \
  49         builtin_define("_INCLUDE_LONGLONG");            \
  50         builtin_define("_UINT128_T");                   \
  51         if (c_dialect_cxx () || !flag_iso)              \
  52           {                                             \
  53             builtin_define("_HPUX_SOURCE");             \
  54             builtin_define("__STDC_EXT__");             \
  55             builtin_define("__STDCPP__");               \
  56             builtin_define("_INCLUDE__STDC_A1_SOURCE"); \
  57           }                                             \
  58         if (TARGET_ILP32)                               \
  59           builtin_define("_ILP32");                     \
  60 } while (0)
  61
  62 #undef CPP_SPEC
  63 #define CPP_SPEC \
  64   "%{mt|pthread:-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L}"
  65 /* aCC defines also -DRWSTD_MULTI_THREAD, -DRW_MULTI_THREAD.  These
  66    affect only aCC's C++ library (Rogue Wave-derived) which we do not
  67    use, and they violate the user's name space.  */
  68
  69 #undef  ASM_EXTRA_SPEC
  70 #define ASM_EXTRA_SPEC "%{milp32:-milp32} %{mlp64:-mlp64}"
  71
  72 #undef ENDFILE_SPEC
  73
  74 #undef STARTFILE_SPEC
  75 #define STARTFILE_SPEC "%{!shared:%{static:crt0%O%s} \
  76                           %{mlp64:/usr/lib/hpux64/unix98%O%s} \
  77                           %{!mlp64:/usr/lib/hpux32/unix98%O%s}}"
  78
  79 #undef LINK_SPEC
  80 #define LINK_SPEC \
  81   "-z +Accept TypeMismatch \
  82    %{shared:-b} \
  83    %{!shared: \
  84      -u main \
  85      %{static:-noshared}}"
  86
  87 #undef  LIB_SPEC
  88 #define LIB_SPEC \
  89   "%{!shared: \
  90      %{mt|pthread:-lpthread} \
  91      %{p:%{!mlp64:-L/usr/lib/hpux32/libp} \
  92          %{mlp64:-L/usr/lib/hpux64/libp} -lprof} \
  93      %{pg:%{!mlp64:-L/usr/lib/hpux32/libp} \
  94           %{mlp64:-L/usr/lib/hpux64/libp} -lgprof} \
  95      %{!symbolic:-lc}}"
  96
  97 #define MULTILIB_DEFAULTS { "milp32" }
  98
  99 /* A C expression whose value is zero if pointers that need to be extended
 100    from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and
 101    greater then zero if they are zero-extended and less then zero if the
 102    ptr_extend instruction should be used.  */
 103
 104 #define POINTERS_EXTEND_UNSIGNED -1
 105
 106 #define JMP_BUF_SIZE  (8 * 76)
 107
 108 #undef TARGET_DEFAULT
 109 #define TARGET_DEFAULT \
 110   (MASK_DWARF2_ASM | MASK_BIG_ENDIAN | MASK_ILP32)
 111
 112 /* ??? Might not be needed anymore.  */
 113 #define MEMBER_TYPE_FORCES_BLK(FIELD, MODE) ((MODE) == TFmode)
 114
 115 /* ASM_OUTPUT_EXTERNAL_LIBCALL defaults to just a globalize_label call,
 116    but that doesn't put out the @function type information which causes
 117    shared library problems.  */
 118
 119 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
 120 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)                  \
 121 do {                                                            \
 122   (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0));     \
 123   ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function");  \
 124 } while (0)
 125
 126 #undef FUNCTION_ARG_PADDING
 127 #define FUNCTION_ARG_PADDING(MODE, TYPE) \
 128         ia64_hpux_function_arg_padding ((MODE), (TYPE))
 129
 130 #undef PAD_VARARGS_DOWN
 131 #define PAD_VARARGS_DOWN (!AGGREGATE_TYPE_P (type))
 132
 133 #define REGISTER_TARGET_PRAGMAS() \
 134   c_register_pragma (0, "builtin", ia64_hpux_handle_builtin_pragma)
 135
 136 /* Tell ia64.c that we are using the HP linker and we should delay output of
 137    function extern declarations so that we don't output them for functions
 138    which are never used (and may not be defined).  */
 139
 140 #undef TARGET_HPUX_LD
 141 #define TARGET_HPUX_LD  1
 142
 143 /* The HPUX dynamic linker objects to weak symbols with no
 144    definitions, so do not use them in gthr-posix.h.  */
 145 #define GTHREAD_USE_WEAK 0
 146
 147 #undef CTORS_SECTION_ASM_OP
 148 #define CTORS_SECTION_ASM_OP  "\t.section\t.init_array,\t\"aw\",\"init_array\""
 149
 150 #undef DTORS_SECTION_ASM_OP
 151 #define DTORS_SECTION_ASM_OP  "\t.section\t.fini_array,\t\"aw\",\"fini_array\""
 152
 153 /* The init_array/fini_array technique does not permit the use of
 154    initialization priorities.  */
 155 #define SUPPORTS_INIT_PRIORITY 0
 156
 157 #undef READONLY_DATA_SECTION_ASM_OP
 158 #define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\""
 159
 160 #undef DATA_SECTION_ASM_OP
 161 #define DATA_SECTION_ASM_OP "\t.section\t.data,\t\"aw\",\t\"progbits\""
 162
 163 #undef SDATA_SECTION_ASM_OP
 164 #define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\t\"asw\",\t\"progbits\""
 165
 166 #undef BSS_SECTION_ASM_OP
 167 #define BSS_SECTION_ASM_OP "\t.section\t.bss,\t\"aw\",\t\"nobits\""
 168
 169 #undef SBSS_SECTION_ASM_OP
 170 #define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\t\"asw\",\t\"nobits\""
 171
 172 #undef TEXT_SECTION_ASM_OP
 173 #define TEXT_SECTION_ASM_OP "\t.section\t.text,\t\"ax\",\t\"progbits\""
 174
 175 /* It is illegal to have relocations in shared segments on HPUX.
 176    Pretend flag_pic is always set.  */
 177 #undef  TARGET_ASM_SELECT_SECTION
 178 #define TARGET_ASM_SELECT_SECTION  ia64_rwreloc_select_section
 179 #undef  TARGET_ASM_UNIQUE_SECTION
 180 #define TARGET_ASM_UNIQUE_SECTION  ia64_rwreloc_unique_section
 181 #undef  TARGET_ASM_SELECT_RTX_SECTION
 182 #define TARGET_ASM_SELECT_RTX_SECTION  ia64_rwreloc_select_rtx_section
 183 #define TARGET_RWRELOC  true
 184
 185 /* ia64 HPUX has the float and long double forms of math functions.  */
 186 #undef TARGET_C99_FUNCTIONS
 187 #define TARGET_C99_FUNCTIONS  1
 188
 189 #undef TARGET_INIT_LIBFUNCS
 190 #define TARGET_INIT_LIBFUNCS ia64_hpux_init_libfuncs
 191
 192 #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) ((MODE) == TFmode)
 193
 194 /* Put all *xf routines in libgcc, regardless of long double size.  */
 195 #undef LIBGCC2_HAS_XF_MODE
 196 #define LIBGCC2_HAS_XF_MODE 1
 197 #define XF_SIZE 64
 198
 199 /* Put all *tf routines in libgcc, regardless of long double size.  */
 200 #undef LIBGCC2_HAS_TF_MODE
 201 #define LIBGCC2_HAS_TF_MODE 1
 202 #define TF_SIZE 113
 203
 204 /* HP-UX headers are C++-compatible.  */
 205 #define NO_IMPLICIT_EXTERN_C
 206
 207 /* HP-UX uses PROFILE_HOOK instead of FUNCTION_PROFILER but we need a
 208    FUNCTION_PROFILER defined because its use is not ifdefed.  When using
 209    PROFILE_HOOK, the profile call comes after the prologue.  */
 210
 211 #undef FUNCTION_PROFILER
 212 #define FUNCTION_PROFILER(FILE, LABELNO) do { } while (0)
 213
 214 #undef PROFILE_HOOK
 215 #define PROFILE_HOOK(LABEL) ia64_profile_hook (LABEL)
 216
 217 #undef  PROFILE_BEFORE_PROLOGUE
 218
 219 #undef NO_PROFILE_COUNTERS
 220 #define NO_PROFILE_COUNTERS 0
 221
 222 #undef HANDLE_PRAGMA_PACK_PUSH_POP
 223 #define HANDLE_PRAGMA_PACK_PUSH_POP