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, 2007
   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 3, 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 COPYING3.  If not see
  21 <http://www.gnu.org/licenses/>.  */
  22
  23 /* This macro is a C statement to print on `stderr' a string describing the
  24    particular machine description choice.  */
  25
  26 #define TARGET_VERSION fprintf (stderr, " (IA-64) HP-UX");
  27
  28 /* Enable HPUX ABI quirks.  */
  29 #undef  TARGET_HPUX
  30 #define TARGET_HPUX 1
  31
  32 #undef WCHAR_TYPE
  33 #define WCHAR_TYPE "unsigned int"
  34
  35 #undef WCHAR_TYPE_SIZE
  36 #define WCHAR_TYPE_SIZE 32
  37
  38 /* Target OS builtins.  */
  39 #define TARGET_OS_CPP_BUILTINS()                        \
  40 do {                                                    \
  41         builtin_assert("system=hpux");                  \
  42         builtin_assert("system=posix");                 \
  43         builtin_assert("system=unix");                  \
  44         builtin_define_std("hpux");                     \
  45         builtin_define_std("unix");                     \
  46         builtin_define("__IA64__");                     \
  47         builtin_define("_LONGLONG");                    \
  48         builtin_define("_INCLUDE_LONGLONG");            \
  49         builtin_define("_UINT128_T");                   \
  50         if (c_dialect_cxx () || !flag_iso)              \
  51           {                                             \
  52             builtin_define("_HPUX_SOURCE");             \
  53             builtin_define("__STDC_EXT__");             \
  54             builtin_define("__STDCPP__");               \
  55             builtin_define("_INCLUDE__STDC_A1_SOURCE"); \
  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                           %{mlp64:/usr/lib/hpux64/unix98%O%s} \
  76                           %{!mlp64:/usr/lib/hpux32/unix98%O%s}}"
  77
  78 #undef LINK_SPEC
  79 #define LINK_SPEC \
  80   "-z +Accept TypeMismatch \
  81    %{shared:-b} \
  82    %{!shared: \
  83      -u main \
  84      %{static:-noshared}}"
  85
  86 #undef  LIB_SPEC
  87 #define LIB_SPEC \
  88   "%{!shared: \
  89      %{mt|pthread:-lpthread} \
  90      %{p:%{!mlp64:-L/usr/lib/hpux32/libp} \
  91          %{mlp64:-L/usr/lib/hpux64/libp} -lprof} \
  92      %{pg:%{!mlp64:-L/usr/lib/hpux32/libp} \
  93           %{mlp64:-L/usr/lib/hpux64/libp} -lgprof} \
  94      %{!symbolic:-lc}}"
  95
  96 #define MULTILIB_DEFAULTS { "milp32" }
  97
  98 /* A C expression whose value is zero if pointers that need to be extended
  99    from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and
 100    greater then zero if they are zero-extended and less then zero if the
 101    ptr_extend instruction should be used.  */
 102
 103 #define POINTERS_EXTEND_UNSIGNED -1
 104
 105 #define JMP_BUF_SIZE  (8 * 76)
 106
 107 #undef TARGET_DEFAULT
 108 #define TARGET_DEFAULT \
 109   (MASK_DWARF2_ASM | MASK_BIG_ENDIAN | MASK_ILP32)
 110
 111 /* ??? Might not be needed anymore.  */
 112 #define MEMBER_TYPE_FORCES_BLK(FIELD, MODE) ((MODE) == TFmode)
 113
 114 /* ASM_OUTPUT_EXTERNAL_LIBCALL defaults to just a globalize_label call,
 115    but that doesn't put out the @function type information which causes
 116    shared library problems.  */
 117
 118 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
 119 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)                  \
 120 do {                                                            \
 121   (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0));     \
 122   ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function");  \
 123 } while (0)
 124
 125 #undef FUNCTION_ARG_PADDING
 126 #define FUNCTION_ARG_PADDING(MODE, TYPE) \
 127         ia64_hpux_function_arg_padding ((MODE), (TYPE))
 128
 129 #undef PAD_VARARGS_DOWN
 130 #define PAD_VARARGS_DOWN (!AGGREGATE_TYPE_P (type))
 131
 132 #define REGISTER_TARGET_PRAGMAS() \
 133   c_register_pragma (0, "builtin", ia64_hpux_handle_builtin_pragma)
 134
 135 /* Tell ia64.c that we are using the HP linker and we should delay output of
 136    function extern declarations so that we don't output them for functions
 137    which are never used (and may not be defined).  */
 138
 139 #undef TARGET_HPUX_LD
 140 #define TARGET_HPUX_LD  1
 141
 142 /* The HPUX dynamic linker objects to weak symbols with no
 143    definitions, so do not use them in gthr-posix.h.  */
 144 #define GTHREAD_USE_WEAK 0
 145
 146 #undef CTORS_SECTION_ASM_OP
 147 #define CTORS_SECTION_ASM_OP  "\t.section\t.init_array,\t\"aw\",\"init_array\""
 148
 149 #undef DTORS_SECTION_ASM_OP
 150 #define DTORS_SECTION_ASM_OP  "\t.section\t.fini_array,\t\"aw\",\"fini_array\""
 151
 152 /* The init_array/fini_array technique does not permit the use of
 153    initialization priorities.  */
 154 #define SUPPORTS_INIT_PRIORITY 0
 155
 156 #undef READONLY_DATA_SECTION_ASM_OP
 157 #define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\""
 158
 159 #undef DATA_SECTION_ASM_OP
 160 #define DATA_SECTION_ASM_OP "\t.section\t.data,\t\"aw\",\t\"progbits\""
 161
 162 #undef SDATA_SECTION_ASM_OP
 163 #define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\t\"asw\",\t\"progbits\""
 164
 165 #undef BSS_SECTION_ASM_OP
 166 #define BSS_SECTION_ASM_OP "\t.section\t.bss,\t\"aw\",\t\"nobits\""
 167
 168 #undef SBSS_SECTION_ASM_OP
 169 #define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\t\"asw\",\t\"nobits\""
 170
 171 #undef TEXT_SECTION_ASM_OP
 172 #define TEXT_SECTION_ASM_OP "\t.section\t.text,\t\"ax\",\t\"progbits\""
 173
 174 /* It is illegal to have relocations in shared segments on HPUX.
 175    Pretend flag_pic is always set.  */
 176 #undef  TARGET_ASM_RELOC_RW_MASK
 177 #define TARGET_ASM_RELOC_RW_MASK  ia64_hpux_reloc_rw_mask
 178
 179 /* ia64 HPUX has the float and long double forms of math functions.  */
 180 #undef TARGET_C99_FUNCTIONS
 181 #define TARGET_C99_FUNCTIONS  1
 182
 183 #undef TARGET_INIT_LIBFUNCS
 184 #define TARGET_INIT_LIBFUNCS ia64_hpux_init_libfuncs
 185
 186 #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) ((MODE) == TFmode)
 187
 188 /* Put all *xf routines in libgcc, regardless of long double size.  */
 189 #undef LIBGCC2_HAS_XF_MODE
 190 #define LIBGCC2_HAS_XF_MODE 1
 191 #define XF_SIZE 64
 192
 193 /* Put all *tf routines in libgcc, regardless of long double size.  */
 194 #undef LIBGCC2_HAS_TF_MODE
 195 #define LIBGCC2_HAS_TF_MODE 1
 196 #define TF_SIZE 113
 197
 198 /* HP-UX headers are C++-compatible.  */
 199 #define NO_IMPLICIT_EXTERN_C
 200
 201 /* HP-UX uses PROFILE_HOOK instead of FUNCTION_PROFILER but we need a
 202    FUNCTION_PROFILER defined because its use is not ifdefed.  When using
 203    PROFILE_HOOK, the profile call comes after the prologue.  */
 204
 205 #undef FUNCTION_PROFILER
 206 #define FUNCTION_PROFILER(FILE, LABELNO) do { } while (0)
 207
 208 #undef PROFILE_HOOK
 209 #define PROFILE_HOOK(LABEL) ia64_profile_hook (LABEL)
 210
 211 #undef  PROFILE_BEFORE_PROLOGUE
 212
 213 #undef NO_PROFILE_COUNTERS
 214 #define NO_PROFILE_COUNTERS 0
 215
 216 #undef HANDLE_PRAGMA_PACK_PUSH_POP
 217 #define HANDLE_PRAGMA_PACK_PUSH_POP