gcc/config/i386/openbsdelf.h

   1 /* Configuration for an OpenBSD i386 target.
   2
   3    Copyright (C) 2005-2024 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
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #define TARGET_OS_CPP_BUILTINS()                \
  22   do                                            \
  23     {                                           \
  24         OPENBSD_OS_CPP_BUILTINS();              \
  25     }                                           \
  26   while (0)
  27
  28 #undef DEBUGGER_REGNO
  29 #define DEBUGGER_REGNO(n) \
  30   (TARGET_64BIT ? debugger64_register_map[n] : svr4_debugger_register_map[n])
  31
  32 /* This must agree with <machine/_types.h>.  */
  33 #undef SIZE_TYPE
  34 #define SIZE_TYPE "long unsigned int"
  35
  36 #undef PTRDIFF_TYPE
  37 #define PTRDIFF_TYPE "long int"
  38
  39 #undef WCHAR_TYPE
  40 #define WCHAR_TYPE "int"
  41
  42 #undef WCHAR_TYPE_SIZE
  43 #define WCHAR_TYPE_SIZE 32
  44
  45 #undef WINT_TYPE
  46 #define WINT_TYPE "int"
  47
  48 /* Don't default to pcc-struct-return, because gcc is the only compiler, and
  49    we want to retain compatibility with older gcc versions.  */
  50
  51 #undef DEFAULT_PCC_STRUCT_RETURN
  52 #define DEFAULT_PCC_STRUCT_RETURN 0
  53
  54 /* Override the default comment-starter of "/".  */
  55 #undef ASM_COMMENT_START
  56 #define ASM_COMMENT_START "#"
  57
  58 #undef ASM_APP_ON
  59 #define ASM_APP_ON "#APP\n"
  60
  61 #undef ASM_APP_OFF
  62 #define ASM_APP_OFF "#NO_APP\n"
  63
  64 #define SUBALIGN_LOG 3
  65
  66 /* OpenBSD's profiler recovers all information from the stack pointer.
  67    The icky part is not here, but in <machine/profile.h>.  */
  68 #undef FUNCTION_PROFILER
  69 #define FUNCTION_PROFILER(FILE, LABELNO)  \
  70   fputs (flag_pic ? "\tcall __mcount@PLT\n" : "\tcall __mcount\n", FILE);
  71
  72 #undef LINK_SPEC
  73 #define LINK_SPEC \
  74   "%{!shared:%{!nostdlib:%{!r:%{!e*:-e __start}}}} \
  75    %{shared:-shared} %{R*} \
  76    %{static:-Bstatic} \
  77    %{!static:-Bdynamic} \
  78    %{assert*} \
  79    -dynamic-linker /usr/libexec/ld.so"
  80
  81 #undef STARTFILE_SPEC
  82 #define STARTFILE_SPEC "\
  83         %{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \
  84         crtbegin%O%s} %{shared:crtbeginS%O%s}"
  85
  86 #undef ENDFILE_SPEC
  87 #define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}"
  88
  89 #define OBSD_HAS_CORRECT_SPECS
  90
  91 #define HAVE_ENABLE_EXECUTE_STACK