gas/config/obj-elf.h

   1 /* ELF object file format.
   2    Copyright (C) 1992, 93, 94, 95, 1996 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 the Free
  18    Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  19    02111-1307, USA.  */
  20
  21
  22 /* HP PA-RISC support was contributed by the Center for Software Science
  23    at the University of Utah.  */
  24
  25 #ifndef _OBJ_ELF_H
  26 #define _OBJ_ELF_H
  27
  28 #define OBJ_ELF 1
  29
  30 #define OUTPUT_FLAVOR bfd_target_elf_flavour
  31
  32 #include <bfd.h>
  33
  34 #define BYTES_IN_WORD 4         /* for now */
  35 #include "bfd/elf-bfd.h"
  36
  37 /* Use this to keep track of .size expressions that involve differences
  38    that we can't compute yet.  */
  39 #define OBJ_SYMFIELD_TYPE expressionS *
  40
  41 /* Symbol fields used by the ELF back end.  */
  42 #define ELF_TARGET_SYMBOL_FIELDS int local:1;
  43
  44 /* Don't change this; change ELF_TARGET_SYMBOL_FIELDS instead.  */
  45 #define TARGET_SYMBOL_FIELDS ELF_TARGET_SYMBOL_FIELDS
  46
  47 #include "targ-cpu.h"
  48
  49 #ifndef FALSE
  50 #define FALSE 0
  51 #define TRUE  !FALSE
  52 #endif
  53
  54 /* should be conditional on address size! */
  55 #define elf_symbol(asymbol) ((elf_symbol_type *)(&(asymbol)->the_bfd))
  56
  57 #define S_GET_SIZE(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_size)
  58 #define S_SET_SIZE(S,V) \
  59   (elf_symbol((S)->bsym)->internal_elf_sym.st_size = (V))
  60
  61 #define S_GET_ALIGN(S) (elf_symbol ((S)->bsym)->internal_elf_sym.st_value)
  62 #define S_SET_ALIGN(S,V) \
  63   (elf_symbol ((S)->bsym)->internal_elf_sym.st_value = (V))
  64
  65 extern asection *gdb_section;
  66
  67 #define obj_frob_file() elf_frob_file()
  68
  69 extern void elf_frob_file PARAMS ((void));
  70 extern void elf_file_symbol PARAMS ((char *));
  71 #define obj_app_file elf_file_symbol
  72
  73 extern void obj_elf_section PARAMS ((int));
  74 extern void obj_elf_previous PARAMS ((int));
  75 extern void obj_elf_version PARAMS ((int));
  76
  77 /* BFD wants to write the udata field, which is a no-no for the
  78    globally defined sections.  */
  79 #define obj_sec_sym_ok_for_reloc(SEC)   ((SEC)->owner != 0)
  80
  81 /* When setting one symbol equal to another, by default we probably
  82    want them to have the same "size", whatever it means in the current
  83    context.  */
  84 #define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST,SRC) \
  85   S_SET_SIZE ((DEST), S_GET_SIZE (SRC))
  86
  87 /* Stabs go in a separate section.  */
  88 #define SEPARATE_STAB_SECTIONS 1
  89
  90 /* We need 12 bytes at the start of the section to hold some initial
  91    information.  */
  92 extern void obj_elf_init_stab_section PARAMS ((segT));
  93 #define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg)
  94
  95 /* For now, always set ECOFF_DEBUGGING for a MIPS target.  */
  96 #ifdef TC_MIPS
  97 #define ECOFF_DEBUGGING 1
  98 #endif
  99
 100 #if ECOFF_DEBUGGING
 101
 102 /* If we are generating ECOFF debugging information, we need some
 103    additional fields for each symbol.  */
 104 #undef TARGET_SYMBOL_FIELDS
 105 #define TARGET_SYMBOL_FIELDS \
 106   ELF_TARGET_SYMBOL_FIELDS \
 107   struct efdr *ecoff_file; \
 108   struct localsym *ecoff_symbol; \
 109   valueT ecoff_extern_size;
 110
 111 /* We smuggle stabs in ECOFF rather than using a separate section.
 112    The Irix linker can not handle a separate stabs section.  */
 113 #undef SEPARATE_STAB_SECTIONS
 114 #undef INIT_STAB_SECTION
 115 #define OBJ_PROCESS_STAB(seg, what, string, type, other, desc) \
 116   ecoff_stab ((seg), (what), (string), (type), (other), (desc))
 117
 118 #define OBJ_GENERATE_ASM_LINENO(filename, lineno) \
 119   ecoff_generate_asm_lineno ((filename), (lineno))
 120
 121 #endif /* ECOFF_DEBUGGING */
 122
 123 extern void elf_frob_symbol PARAMS ((struct symbol *, int *));
 124 #define obj_frob_symbol(symp, punt) elf_frob_symbol (symp, &punt)
 125
 126 extern void elf_pop_insert PARAMS ((void));
 127 #define obj_pop_insert()        elf_pop_insert()
 128
 129 #ifndef OBJ_MAYBE_ELF
 130 #define obj_ecoff_set_ext elf_ecoff_set_ext
 131 extern void elf_ecoff_set_ext ();
 132 #endif
 133
 134 #endif /* _OBJ_ELF_H */