gas/config/obj-elf.h

   1 /* ELF object file format.
   2    Copyright (C) 1992, 1993 Free Software Foundation, Inc.
   3
   4    This file is part of GAS, the GNU Assembler.
   5
   6    GAS is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 1, or (at your option)
   9    any later version.
  10
  11    GAS is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GAS; see the file COPYING.  If not, write to
  18    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20
  21 /* HP PA-RISC support was contributed by the Center for Software Science
  22    at the University of Utah.  */
  23
  24 #ifndef _OBJ_ELF_H
  25 #define _OBJ_ELF_H
  26
  27 #define OBJ_ELF 1
  28
  29 #include <bfd.h>
  30
  31 #define BYTES_IN_WORD 4         /* for now */
  32 #include "../bfd/libelf.h"
  33
  34 /* Symbol fields used by the ELF back end.  */
  35 #define ELF_TARGET_SYMBOL_FIELDS int local:1; unsigned long sy_name_offset;
  36
  37 /* Don't change this; change ELF_TARGET_SYMBOL_FIELDS instead.  */
  38 #define TARGET_SYMBOL_FIELDS ELF_TARGET_SYMBOL_FIELDS
  39
  40 #include "targ-cpu.h"
  41
  42 #ifndef FALSE
  43 #define FALSE 0
  44 #define TRUE  !FALSE
  45 #endif
  46
  47 /* should be conditional on address size! */
  48 #define elf_symbol(asymbol) ((elf_symbol_type *)(&(asymbol)->the_bfd))
  49
  50 #define S_GET_SIZE(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_size)
  51 #define S_SET_SIZE(S,V) \
  52   (elf_symbol((S)->bsym)->internal_elf_sym.st_size = (V))
  53
  54 #define S_GET_ALIGN(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_value)
  55 #define S_SET_ALIGN(S,V) \
  56   (elf_symbol ((S)->bsym)->internal_elf_sym.st_value = (V))
  57
  58 extern asection *gdb_section;
  59
  60 /* Copy over the function bit and size of a forwarded symbol.  */
  61 #define obj_frob_forward_symbol(sym)                                    \
  62   (((sym)->bsym->flags |=                                               \
  63     ((sym)->sy_value.X_add_symbol->bsym->flags & BSF_FUNCTION)),        \
  64    S_SET_SIZE ((sym), S_GET_SIZE ((sym)->sy_value.X_add_symbol)))
  65
  66 #define obj_frob_file() elf_frob_file()
  67
  68 extern void elf_frob_file PARAMS ((void));
  69 extern void elf_file_symbol PARAMS ((char *));
  70
  71 extern void obj_elf_section PARAMS ((int));
  72 extern void obj_elf_previous PARAMS ((int));
  73 extern void obj_elf_version PARAMS ((int));
  74
  75 /* BFD wants to write the udata field, which is a no-no for the
  76    globally defined sections.  */
  77 #define obj_sec_sym_ok_for_reloc(SEC)   ((SEC)->owner != 0)
  78
  79 /* Stabs go in a separate section.  */
  80 #define SEPARATE_STAB_SECTIONS
  81
  82 /* We need 12 bytes at the start of the section to hold some initial
  83    information.  */
  84 extern void obj_elf_init_stab_section PARAMS ((segT));
  85 #define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg)
  86
  87 /* For now, always set ECOFF_DEBUGGING for a MIPS target.  */
  88 #ifdef TC_MIPS
  89 #define ECOFF_DEBUGGING
  90 #endif
  91
  92 #ifdef ECOFF_DEBUGGING
  93
  94 /* If we are generating ECOFF debugging information, we need some
  95    additional fields for each symbol.  */
  96 #undef TARGET_SYMBOL_FIELDS
  97 #define TARGET_SYMBOL_FIELDS \
  98   ELF_TARGET_SYMBOL_FIELDS \
  99   struct efdr *ecoff_file; \
 100   struct localsym *ecoff_symbol; \
 101   valueT ecoff_extern_size;
 102
 103 /* We smuggle stabs in ECOFF rather than using a separate section.
 104    The Irix linker can not handle a separate stabs section.  */
 105 #undef SEPARATE_STAB_SECTIONS
 106 #undef INIT_STAB_SECTION
 107 #define OBJ_PROCESS_STAB(what, string, type, other, desc) \
 108   ecoff_stab ((what), (string), (type), (other), (desc))
 109
 110 #define OBJ_GENERATE_ASM_LINENO(filename, lineno) \
 111   ecoff_generate_asm_lineno ((filename), (lineno))
 112
 113 /* ECOFF requires that we call the ecoff_frob_symbol hook.  */
 114 #define obj_frob_symbol(symp, punt) ecoff_frob_symbol (symp)
 115
 116 #endif /* ECOFF_DEBUGGING */
 117
 118 #endif /* _OBJ_ELF_H */