gcc/config/sh/elf.h

   1 /* Definitions of target machine for gcc for Renesas / SuperH SH using ELF.
   2    Copyright (C) 1996-2017 Free Software Foundation, Inc.
   3    Contributed by Ian Lance Taylor <ian@cygnus.com>.
   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 /* Let sh.c know this is ELF.  */
  22 #undef TARGET_ELF
  23 #define TARGET_ELF 1
  24
  25 /* Generate DWARF2 debugging information and make it the default.  */
  26 #define DWARF2_DEBUGGING_INFO 1
  27
  28 #undef PREFERRED_DEBUGGING_TYPE
  29 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
  30
  31 /* Use a more compact format for line information.  */
  32 #define DWARF2_ASM_LINE_DEBUG_INFO 1
  33
  34 #undef WCHAR_TYPE
  35 #define WCHAR_TYPE SH_ELF_WCHAR_TYPE
  36
  37 #undef WCHAR_TYPE_SIZE
  38 #define WCHAR_TYPE_SIZE 32
  39
  40
  41 /* The prefix to add to user-visible assembler symbols.  */
  42 #undef LOCAL_LABEL_PREFIX
  43 #define LOCAL_LABEL_PREFIX "."
  44
  45 #undef SIZE_TYPE
  46 #define SIZE_TYPE ("unsigned int")
  47
  48 #undef PTRDIFF_TYPE
  49 #define PTRDIFF_TYPE ("int")
  50
  51 /* Pass -ml and -mrelax to the assembler and linker.  */
  52 #undef ASM_SPEC
  53 #define ASM_SPEC SH_ASM_SPEC
  54
  55 #undef LINK_SPEC
  56 #define LINK_SPEC SH_LINK_SPEC
  57 #undef LINK_EMUL_PREFIX
  58 #if TARGET_ENDIAN_DEFAULT == MASK_LITTLE_ENDIAN
  59 #define LINK_EMUL_PREFIX "sh%{!mb:l}elf"
  60 #else
  61 #define LINK_EMUL_PREFIX "sh%{ml:l}elf"
  62 #endif
  63
  64 #define DBX_REGISTER_NUMBER(REGNO) SH_DBX_REGISTER_NUMBER (REGNO)
  65
  66 #undef ASM_GENERATE_INTERNAL_LABEL
  67 #define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \
  68   sprintf ((STRING), "*%s%s%ld", LOCAL_LABEL_PREFIX, (PREFIX), (long)(NUM))
  69
  70 #define DBX_LINES_FUNCTION_RELATIVE 1
  71 #define DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END
  72
  73 #undef STARTFILE_SPEC
  74 #define STARTFILE_SPEC \
  75   "%{!shared: crt1.o%s} crti.o%s \
  76    %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
  77
  78 #undef ENDFILE_SPEC
  79 #define ENDFILE_SPEC \
  80   "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
  81
  82 #undef LIB_SPEC
  83 #define LIB_SPEC "-lc"
  84
  85 /* ASM_OUTPUT_CASE_LABEL is defined in elfos.h.  With it,
  86    a redundant .align was generated.  */
  87 #undef  ASM_OUTPUT_CASE_LABEL