236 lines
6.4 KiB
C
236 lines
6.4 KiB
C
/* ELF object file format.
|
|
Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 99, 2000
|
|
Free Software Foundation, Inc.
|
|
|
|
This file is part of GAS, the GNU Assembler.
|
|
|
|
GAS is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 1, or (at your option)
|
|
any later version.
|
|
|
|
GAS is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GAS; see the file COPYING. If not, write to the Free
|
|
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
|
02111-1307, USA. */
|
|
|
|
|
|
/* HP PA-RISC support was contributed by the Center for Software Science
|
|
at the University of Utah. */
|
|
|
|
#ifndef _OBJ_ELF_H
|
|
#define _OBJ_ELF_H
|
|
|
|
#define OBJ_ELF 1
|
|
|
|
#ifndef OUTPUT_FLAVOR
|
|
#define OUTPUT_FLAVOR bfd_target_elf_flavour
|
|
#endif
|
|
|
|
#include <bfd.h>
|
|
|
|
#define BYTES_IN_WORD 4 /* for now */
|
|
#include "bfd/elf-bfd.h"
|
|
|
|
#include "targ-cpu.h"
|
|
|
|
#ifdef TC_ALPHA
|
|
#define ECOFF_DEBUGGING alpha_flag_mdebug
|
|
extern int alpha_flag_mdebug;
|
|
#endif
|
|
|
|
/* For now, always set ECOFF_DEBUGGING for a MIPS target. */
|
|
#ifdef TC_MIPS
|
|
#ifdef MIPS_STABS_ELF
|
|
#define ECOFF_DEBUGGING 0
|
|
#else
|
|
#define ECOFF_DEBUGGING 1
|
|
#endif /* MIPS_STABS_ELF */
|
|
#endif /* TC_MIPS */
|
|
|
|
#ifdef OBJ_MAYBE_ECOFF
|
|
#ifndef ECOFF_DEBUGGING
|
|
#define ECOFF_DEBUGGING 1
|
|
#endif
|
|
#endif
|
|
|
|
/* Additional information we keep for each symbol. */
|
|
struct elf_obj_sy
|
|
{
|
|
/* Whether the symbol has been marked as local. */
|
|
int local;
|
|
|
|
/* Use this to keep track of .size expressions that involve
|
|
differences that we can't compute yet. */
|
|
expressionS *size;
|
|
|
|
/* The name specified by the .symver directive. */
|
|
char *versioned_name;
|
|
|
|
#ifdef ECOFF_DEBUGGING
|
|
/* If we are generating ECOFF debugging information, we need some
|
|
additional fields for each symbol. */
|
|
struct efdr *ecoff_file;
|
|
struct localsym *ecoff_symbol;
|
|
valueT ecoff_extern_size;
|
|
#endif
|
|
};
|
|
|
|
#define OBJ_SYMFIELD_TYPE struct elf_obj_sy
|
|
|
|
#ifndef FALSE
|
|
#define FALSE 0
|
|
#define TRUE !FALSE
|
|
#endif
|
|
|
|
#define obj_begin() elf_begin ()
|
|
extern void elf_begin PARAMS ((void));
|
|
|
|
/* should be conditional on address size! */
|
|
#define elf_symbol(asymbol) ((elf_symbol_type *)(&(asymbol)->the_bfd))
|
|
|
|
#ifndef S_GET_SIZE
|
|
#define S_GET_SIZE(S) \
|
|
(elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_size)
|
|
#endif
|
|
#ifndef S_SET_SIZE
|
|
#define S_SET_SIZE(S,V) \
|
|
(elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_size = (V))
|
|
#endif
|
|
|
|
#ifndef S_GET_ALIGN
|
|
#define S_GET_ALIGN(S) \
|
|
(elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value)
|
|
#endif
|
|
#ifndef S_SET_ALIGN
|
|
#define S_SET_ALIGN(S,V) \
|
|
(elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value = (V))
|
|
#endif
|
|
|
|
int elf_s_get_other PARAMS ((symbolS *));
|
|
#ifndef S_GET_OTHER
|
|
#define S_GET_OTHER(S) (elf_s_get_other (S))
|
|
#endif
|
|
#ifndef S_SET_OTHER
|
|
#define S_SET_OTHER(S,V) \
|
|
(elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_other = (V))
|
|
#endif
|
|
|
|
extern asection *gdb_section;
|
|
|
|
#ifndef obj_frob_file
|
|
#define obj_frob_file elf_frob_file
|
|
#endif
|
|
extern void elf_frob_file PARAMS ((void));
|
|
|
|
#ifndef obj_frob_file_after_relocs
|
|
#define obj_frob_file_after_relocs elf_frob_file_after_relocs
|
|
#endif
|
|
extern void elf_frob_file_after_relocs PARAMS ((void));
|
|
|
|
#define obj_app_file elf_file_symbol
|
|
extern void elf_file_symbol PARAMS ((char *));
|
|
|
|
extern void obj_elf_section_change_hook PARAMS ((void));
|
|
|
|
extern void obj_elf_section PARAMS ((int));
|
|
extern void obj_elf_previous PARAMS ((int));
|
|
extern void obj_elf_version PARAMS ((int));
|
|
extern void obj_elf_common PARAMS ((int));
|
|
extern void obj_elf_data PARAMS ((int));
|
|
extern void obj_elf_text PARAMS ((int));
|
|
|
|
/* BFD wants to write the udata field, which is a no-no for the
|
|
globally defined sections. */
|
|
#ifndef obj_sec_sym_ok_for_reloc
|
|
#define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0)
|
|
#endif
|
|
|
|
void elf_obj_read_begin_hook PARAMS ((void));
|
|
#ifndef obj_read_begin_hook
|
|
#define obj_read_begin_hook elf_obj_read_begin_hook
|
|
#endif
|
|
|
|
void elf_obj_symbol_new_hook PARAMS ((symbolS *));
|
|
#ifndef obj_symbol_new_hook
|
|
#define obj_symbol_new_hook elf_obj_symbol_new_hook
|
|
#endif
|
|
|
|
/* When setting one symbol equal to another, by default we probably
|
|
want them to have the same "size", whatever it means in the current
|
|
context. */
|
|
#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
|
|
#define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST,SRC) \
|
|
do \
|
|
{ \
|
|
struct elf_obj_sy *srcelf = symbol_get_obj (SRC); \
|
|
struct elf_obj_sy *destelf = symbol_get_obj (DEST); \
|
|
if (srcelf->size) \
|
|
{ \
|
|
if (destelf->size == NULL) \
|
|
destelf->size = \
|
|
(expressionS *) xmalloc (sizeof (expressionS)); \
|
|
*destelf->size = *srcelf->size; \
|
|
} \
|
|
else \
|
|
{ \
|
|
if (destelf->size != NULL) \
|
|
free (destelf->size); \
|
|
destelf->size = NULL; \
|
|
} \
|
|
S_SET_SIZE ((DEST), S_GET_SIZE (SRC)); \
|
|
S_SET_OTHER ((DEST), S_GET_OTHER (SRC)); \
|
|
} \
|
|
while (0)
|
|
#endif
|
|
|
|
/* Stabs go in a separate section. */
|
|
#define SEPARATE_STAB_SECTIONS 1
|
|
|
|
/* We need 12 bytes at the start of the section to hold some initial
|
|
information. */
|
|
extern void obj_elf_init_stab_section PARAMS ((segT));
|
|
#define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg)
|
|
|
|
#ifdef ECOFF_DEBUGGING
|
|
/* We smuggle stabs in ECOFF rather than using a separate section.
|
|
The Irix linker can not handle a separate stabs section. */
|
|
|
|
#undef SEPARATE_STAB_SECTIONS
|
|
#define SEPARATE_STAB_SECTIONS (!ECOFF_DEBUGGING)
|
|
|
|
#undef INIT_STAB_SECTION
|
|
#define INIT_STAB_SECTION(seg) \
|
|
((void)(ECOFF_DEBUGGING ? 0 : (obj_elf_init_stab_section (seg), 0)))
|
|
|
|
#undef OBJ_PROCESS_STAB
|
|
#define OBJ_PROCESS_STAB(seg, what, string, type, other, desc) \
|
|
if (ECOFF_DEBUGGING) \
|
|
ecoff_stab ((seg), (what), (string), (type), (other), (desc))
|
|
#endif /* ECOFF_DEBUGGING */
|
|
|
|
extern void elf_frob_symbol PARAMS ((symbolS *, int *));
|
|
#ifndef obj_frob_symbol
|
|
#define obj_frob_symbol(symp, punt) elf_frob_symbol (symp, &punt)
|
|
#endif
|
|
|
|
extern void elf_pop_insert PARAMS ((void));
|
|
#ifndef obj_pop_insert
|
|
#define obj_pop_insert() elf_pop_insert()
|
|
#endif
|
|
|
|
#ifndef OBJ_MAYBE_ELF
|
|
#define obj_ecoff_set_ext elf_ecoff_set_ext
|
|
#ifdef ANSI_PROTOTYPES
|
|
struct ecoff_extr;
|
|
#endif
|
|
extern void elf_ecoff_set_ext PARAMS ((symbolS *, struct ecoff_extr *));
|
|
#endif
|
|
|
|
#endif /* _OBJ_ELF_H */
|