gcc/config/ia64/linux.h

   1 /* Definitions for ia64-linux target.
   2
   3 Copyright (C) 2000-2024 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 3, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 Under Section 7 of GPL version 3, you are granted additional
  18 permissions described in the GCC Runtime Library Exception, version
  19 3.1, as published by the Free Software Foundation.
  20
  21 You should have received a copy of the GNU General Public License and
  22 a copy of the GCC Runtime Library Exception along with this program;
  23 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 <http://www.gnu.org/licenses/>.  */
  25
  26 /* This is for -profile to use -lc_p instead of -lc.  */
  27 #undef CC1_SPEC
  28 #define CC1_SPEC "%{profile:-p} %{G*}"
  29
  30 /* Target OS builtins.  */
  31 #define TARGET_OS_CPP_BUILTINS()                \
  32 do {                                            \
  33         GNU_USER_TARGET_OS_CPP_BUILTINS();      \
  34         builtin_define("_LONGLONG");            \
  35 } while (0)
  36
  37 /* Need to override linux.h STARTFILE_SPEC, since it has crtbeginT.o in.  */
  38 #undef STARTFILE_SPEC
  39 #ifdef HAVE_LD_PIE
  40 #define STARTFILE_SPEC \
  41   "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}}\
  42    crti.o%s %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
  43 #else
  44 #define STARTFILE_SPEC \
  45   "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}}\
  46    crti.o%s %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
  47 #endif
  48
  49 /* Similar to standard Linux, but adding -ffast-math support.  */
  50 #undef  ENDFILE_SPEC
  51 #define ENDFILE_SPEC \
  52   "%{Ofast|ffast-math|funsafe-math-optimizations:%{!shared:crtfastmath.o%s}} \
  53    %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
  54
  55 /* Define this for shared library support because it isn't in the main
  56    linux.h file.  */
  57
  58 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-ia64.so.2"
  59
  60 #undef LINK_SPEC
  61 #define LINK_SPEC "\
  62   %{shared:-shared} \
  63   %{!shared: \
  64     %{!static: \
  65       %{rdynamic:-export-dynamic} \
  66       -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
  67       %{static:-static}}"
  68
  69 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
  70
  71 #define JMP_BUF_SIZE  76
  72
  73 /* Override linux.h LINK_EH_SPEC definition.
  74    Signalize that because we have fde-glibc, we don't need all C shared libs
  75    linked against -lgcc_s.  */
  76 #undef LINK_EH_SPEC
  77 #define LINK_EH_SPEC ""
  78
  79 #undef TARGET_INIT_LIBFUNCS
  80 #define TARGET_INIT_LIBFUNCS ia64_soft_fp_init_libfuncs
  81
  82 /* Define this to be nonzero if static stack checking is supported.  */
  83 #define STACK_CHECK_STATIC_BUILTIN 1