gcc/config/xtensa/elf.h

   1 /* Xtensa/Elf configuration.
   2    Derived from the configuration for GCC for Intel i386 running Linux.
   3    Copyright (C) 2001 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 2, 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 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22 #define TARGET_OS_CPP_BUILTINS()                                \
  23   do {                                                          \
  24     builtin_define ("__ELF__");                                 \
  25   } while (0)
  26
  27 #define TARGET_SECTION_TYPE_FLAGS xtensa_multibss_section_type_flags
  28
  29 /* Don't assume anything about the header files. */
  30 #define NO_IMPLICIT_EXTERN_C
  31
  32 #undef ASM_APP_ON
  33 #define ASM_APP_ON "#APP\n"
  34
  35 #undef ASM_APP_OFF
  36 #define ASM_APP_OFF "#NO_APP\n"
  37
  38 #undef MD_EXEC_PREFIX
  39 #undef MD_STARTFILE_PREFIX
  40
  41 #undef TARGET_VERSION
  42 #define TARGET_VERSION fputs (" (Xtensa/ELF)", stderr);
  43
  44 #undef SIZE_TYPE
  45 #define SIZE_TYPE "unsigned int"
  46
  47 #undef PTRDIFF_TYPE
  48 #define PTRDIFF_TYPE "int"
  49
  50 #undef WCHAR_TYPE
  51 #define WCHAR_TYPE "int"
  52
  53 #undef WCHAR_TYPE_SIZE
  54 #define WCHAR_TYPE_SIZE BITS_PER_WORD
  55
  56 #undef ASM_SPEC
  57 #define ASM_SPEC "%{v} %{mno-density:--no-density} \
  58                   %{mtext-section-literals:--text-section-literals} \
  59                   %{mno-text-section-literals:--no-text-section-literals} \
  60                   %{mtarget-align:--target-align} \
  61                   %{mno-target-align:--no-target-align} \
  62                   %{mlongcalls:--longcalls} \
  63                   %{mno-longcalls:--no-longcalls}"
  64
  65 #undef ASM_FINAL_SPEC
  66
  67 #undef LIB_SPEC
  68 #define LIB_SPEC "-lc -lsim -lc -lhandlers-sim"
  69
  70 #undef STARTFILE_SPEC
  71 #define STARTFILE_SPEC "crt1-sim%O%s crti%O%s crtbegin%O%s _vectors%O%s"
  72
  73 #undef ENDFILE_SPEC
  74 #define ENDFILE_SPEC "crtend%O%s crtn%O%s"
  75
  76 #undef LINK_SPEC
  77 #define LINK_SPEC \
  78  "%{shared:-shared} \
  79   %{!shared: \
  80     %{!static: \
  81       %{rdynamic:-export-dynamic} \
  82     %{static:-static}}}"
  83
  84 /* Local compiler-generated symbols must have a prefix that the assembler
  85    understands.   By default, this is $, although some targets (e.g.,
  86    NetBSD-ELF) need to override this. */
  87
  88 #ifndef LOCAL_LABEL_PREFIX
  89 #define LOCAL_LABEL_PREFIX      "."
  90 #endif
  91
  92 /* By default, external symbols do not have an underscore prepended. */
  93
  94 #ifndef USER_LABEL_PREFIX
  95 #define USER_LABEL_PREFIX       ""
  96 #endif
  97
  98 /* Define this macro if the assembler does not accept the character
  99    "." in label names.  By default constructors and destructors in G++
 100    have names that use ".".  If this macro is defined, these names
 101    are rewritten to avoid ".". */
 102 #define NO_DOT_IN_LABEL
 103
 104 /* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
 105    doesn't allow $ in symbol names.  */
 106 #undef NO_DOLLAR_IN_LABEL
 107
 108 /* Do not force "-fpic" for this target.  */
 109 #define XTENSA_ALWAYS_PIC 0
 110
 111 /* Redefine the standard ELF version of ASM_DECLARE_FUNCTION_SIZE to
 112    allow adding the ".end literal_prefix" directive at the end of the
 113    function.  */
 114 #undef ASM_DECLARE_FUNCTION_SIZE
 115 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)            \
 116   do                                                            \
 117     {                                                           \
 118       if (!flag_inhibit_size_directive)                         \
 119         ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME);                 \
 120       XTENSA_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL);          \
 121     }                                                           \
 122   while (0)