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           }                                             \
  57         if (TARGET_ILP32)                               \
  58           builtin_define("_ILP32");                     \
  59 } while (0)
  60
  61 #undef CPP_SPEC
  62 #define CPP_SPEC \
  63   "%{mt|pthread:-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L}"
  64 /* aCC defines also -DRWSTD_MULTI_THREAD, -DRW_MULTI_THREAD.  These
  65    affect only aCC's C++ library (Rogue Wave-derived) which we do not
  66    use, and they violate the user's name space.  */
  67
  68 #undef  ASM_EXTRA_SPEC
  69 #define ASM_EXTRA_SPEC "%{milp32:-milp32} %{mlp64:-mlp64}"
  70
  71 #undef ENDFILE_SPEC
  72
  73 #undef STARTFILE_SPEC
  74 #define STARTFILE_SPEC "%{!shared:%{static:crt0%O%s}}"
  75
  76 #undef LINK_SPEC
  77 #define LINK_SPEC \
  78   "-z +Accept TypeMismatch \
  79    %{shared:-b} \
  80    %{!shared: \
  81      -u main \
  82      %{static:-noshared}}"
  83
  84 #undef  LIB_SPEC
  85 #define LIB_SPEC \
  86   "%{!shared: \
  87      %{mt|pthread:-lpthread} \
  88      %{p:%{!mlp64:-L/usr/lib/hpux32/libp} \
  89          %{mlp64:-L/usr/lib/hpux64/libp} -lprof} \
  90      %{pg:%{!mlp64:-L/usr/lib/hpux32/libp} \
  91           %{mlp64:-L/usr/lib/hpux64/libp} -lgprof} \
  92      %{!symbolic:-lc}}"
  93
  94 #define MULTILIB_DEFAULTS { "milp32" }
  95
  96 /* A C expression whose value is zero if pointers that need to be extended
  97    from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and
  98    greater then zero if they are zero-extended and less then zero if the
  99    ptr_extend instruction should be used.  */
 100
 101 #define POINTERS_EXTEND_UNSIGNED -1
 102
 103 #define JMP_BUF_SIZE  (8 * 76)
 104
 105 #undef TARGET_DEFAULT
 106 #define TARGET_DEFAULT \
 107   (MASK_DWARF2_ASM | MASK_BIG_ENDIAN | MASK_ILP32)
 108
 109 /* ??? Might not be needed anymore.  */
 110 #define MEMBER_TYPE_FORCES_BLK(FIELD, MODE) ((MODE) == TFmode)
 111
 112 /* ASM_OUTPUT_EXTERNAL_LIBCALL defaults to just a globalize_label call,
 113    but that doesn't put out the @function type information which causes
 114    shared library problems.  */
 115
 116 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
 117 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)                  \
 118 do {                                                            \
 119   (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0));     \
 120   ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function");  \
 121 } while (0)
 122
 123 #undef FUNCTION_ARG_PADDING
 124 #define FUNCTION_ARG_PADDING(MODE, TYPE) \
 125         ia64_hpux_function_arg_padding ((MODE), (TYPE))
 126
 127 #undef PAD_VARARGS_DOWN
 128 #define PAD_VARARGS_DOWN (!AGGREGATE_TYPE_P (type))
 129
 130 #define REGISTER_TARGET_PRAGMAS() \
 131   c_register_pragma (0, "builtin", ia64_hpux_handle_builtin_pragma)
 132
 133 /* Tell ia64.c that we are using the HP linker and we should delay output of
 134    function extern declarations so that we don't output them for functions
 135    which are never used (and may not be defined).  */
 136
 137 #undef TARGET_HPUX_LD
 138 #define TARGET_HPUX_LD  1
 139
 140 /* The HPUX dynamic linker objects to weak symbols with no
 141    definitions, so do not use them in gthr-posix.h.  */
 142 #define GTHREAD_USE_WEAK 0
 143
 144 /* Put out the needed function declarations at the end.  */
 145
 146 #define TARGET_ASM_FILE_END ia64_hpux_file_end
 147
 148 #undef CTORS_SECTION_ASM_OP
 149 #define CTORS_SECTION_ASM_OP  "\t.section\t.init_array,\t\"aw\",\"init_array\""
 150
 151 #undef DTORS_SECTION_ASM_OP
 152 #define DTORS_SECTION_ASM_OP  "\t.section\t.fini_array,\t\"aw\",\"fini_array\""
 153
 154 /* The init_array/fini_array technique does not permit the use of
 155    initialization priorities.  */
 156 #define SUPPORTS_INIT_PRIORITY 0
 157
 158 #undef READONLY_DATA_SECTION_ASM_OP
 159 #define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\""
 160
 161 #undef DATA_SECTION_ASM_OP
 162 #define DATA_SECTION_ASM_OP "\t.section\t.data,\t\"aw\",\t\"progbits\""
 163
 164 #undef SDATA_SECTION_ASM_OP
 165 #define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\t\"asw\",\t\"progbits\""
 166
 167 #undef BSS_SECTION_ASM_OP
 168 #define BSS_SECTION_ASM_OP "\t.section\t.bss,\t\"aw\",\t\"nobits\""
 169
 170 #undef SBSS_SECTION_ASM_OP
 171 #define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\t\"asw\",\t\"nobits\""
 172
 173 #undef TEXT_SECTION_ASM_OP
 174 #define TEXT_SECTION_ASM_OP "\t.section\t.text,\t\"ax\",\t\"progbits\""
 175
 176 /* It is illegal to have relocations in shared segments on HPUX.
 177    Pretend flag_pic is always set.  */
 178 #undef  TARGET_ASM_SELECT_SECTION
 179 #define TARGET_ASM_SELECT_SECTION  ia64_rwreloc_select_section
 180 #undef  TARGET_ASM_UNIQUE_SECTION
 181 #define TARGET_ASM_UNIQUE_SECTION  ia64_rwreloc_unique_section
 182 #undef  TARGET_ASM_SELECT_RTX_SECTION
 183 #define TARGET_ASM_SELECT_RTX_SECTION  ia64_rwreloc_select_rtx_section
 184 #define TARGET_RWRELOC  true
 185
 186 /* ia64 HPUX has the float and long double forms of math functions.  */
 187 #undef TARGET_C99_FUNCTIONS
 188 #define TARGET_C99_FUNCTIONS  1
 189
 190 #undef TARGET_INIT_LIBFUNCS
 191 #define TARGET_INIT_LIBFUNCS ia64_hpux_init_libfuncs
 192
 193 #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) ((MODE) == TFmode)
 194
 195 /* Put all *xf routines in libgcc, regardless of long double size.  */
 196 #undef LIBGCC2_HAS_XF_MODE
 197 #define LIBGCC2_HAS_XF_MODE 1
 198 #define XF_SIZE 64
 199
 200 /* Put all *tf routines in libgcc, regardless of long double size.  */
 201 #undef LIBGCC2_HAS_TF_MODE
 202 #define LIBGCC2_HAS_TF_MODE 1
 203 #define TF_SIZE 113
 204
 205 /* HP-UX headers are C++-compatible.  */
 206 #define NO_IMPLICIT_EXTERN_C
 207
 208 /* HP-UX uses PROFILE_HOOK instead of FUNCTION_PROFILER but we need a
 209    FUNCTION_PROFILER defined because its use is not ifdefed.  When using
 210    PROFILE_HOOK, the profile call comes after the prologue.  */
 211
 212 #undef FUNCTION_PROFILER
 213 #define FUNCTION_PROFILER(FILE, LABELNO) do { } while (0)
 214
 215 #undef PROFILE_HOOK
 216 #define PROFILE_HOOK(LABEL) ia64_profile_hook (LABEL)
 217
 218 #undef  PROFILE_BEFORE_PROLOGUE
 219
 220 #undef NO_PROFILE_COUNTERS
 221 #define NO_PROFILE_COUNTERS 0
 222
 223 #undef HANDLE_PRAGMA_PACK_PUSH_POP
 224 #define HANDLE_PRAGMA_PACK_PUSH_POP