gcc/config/i386/netbsd-elf.h

   1 /* Definitions of target machine for GCC,
   2    for i386/ELF NetBSD systems.
   3    Copyright (C) 2001-2022 Free Software Foundation, Inc.
   4    Contributed by matthew green <mrg@eterna.com.au>
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 #define TARGET_OS_CPP_BUILTINS()                \
  23   do                                            \
  24     {                                           \
  25       NETBSD_OS_CPP_BUILTINS_ELF();             \
  26     }                                           \
  27   while (0)
  28
  29
  30 /* Extra specs needed for NetBSD/i386 ELF.  */
  31
  32 #undef SUBTARGET_EXTRA_SPECS
  33 #define SUBTARGET_EXTRA_SPECS                   \
  34   { "netbsd_cpp_spec", NETBSD_CPP_SPEC },       \
  35   { "netbsd_entry_point", NETBSD_ENTRY_POINT },
  36
  37
  38 /* Provide a LINK_SPEC appropriate for a NetBSD/i386 ELF target.  */
  39
  40 #undef LINK_SPEC
  41 #define LINK_SPEC NETBSD_LINK_SPEC_ELF
  42
  43 #define NETBSD_ENTRY_POINT "__start"
  44
  45
  46 /* Provide a CPP_SPEC appropriate for NetBSD.  */
  47
  48 #undef CPP_SPEC
  49 #define CPP_SPEC "%(netbsd_cpp_spec)"
  50
  51
  52 /* Make gcc agree with <machine/ansi.h> */
  53
  54 #undef SIZE_TYPE
  55 #define SIZE_TYPE "unsigned int"
  56
  57 #undef PTRDIFF_TYPE
  58 #define PTRDIFF_TYPE "int"
  59
  60 #undef ASM_APP_ON
  61 #define ASM_APP_ON "#APP\n"
  62
  63 #undef ASM_APP_OFF
  64 #define ASM_APP_OFF "#NO_APP\n"
  65
  66 #undef ASM_COMMENT_START
  67 #define ASM_COMMENT_START "#"
  68
  69 #undef DBX_REGISTER_NUMBER
  70 #define DBX_REGISTER_NUMBER(n)  svr4_dbx_register_map[n]
  71
  72
  73 /* Output assembler code to FILE to call the profiler.  */
  74
  75 #undef NO_PROFILE_COUNTERS
  76 #define NO_PROFILE_COUNTERS     1
  77
  78 #undef FUNCTION_PROFILER
  79 #define FUNCTION_PROFILER(FILE, LABELNO)                                \
  80 {                                                                       \
  81   if (flag_pic)                                                         \
  82     fprintf (FILE, "\tcall __mcount@PLT\n");                            \
  83   else                                                                  \
  84     fprintf (FILE, "\tcall __mcount\n");                                \
  85 }
  86
  87
  88 #undef HAS_INIT_SECTION
  89
  90 /* This is how we tell the assembler that two symbols have the same value.  */
  91
  92 #define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \
  93   do { assemble_name(FILE, NAME1);       \
  94        fputs(" = ", FILE);               \
  95        assemble_name(FILE, NAME2);       \
  96        fputc('\n', FILE); } while (0)
  97
  98 /* We always use gas here, so we don't worry about ECOFF assembler
  99    problems.  */
 100 #undef TARGET_GAS
 101 #define TARGET_GAS      1
 102
 103 /* Default to pcc-struct-return, because this is the ELF abi and
 104    we don't care about compatibility with older gcc versions.  */
 105 #define DEFAULT_PCC_STRUCT_RETURN 1
 106
 107 #define HAVE_ENABLE_EXECUTE_STACK