mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-12-03 09:41:26 +00:00
8d12f138ea
routines. * ecoff.c (ecoff_clear_output_flags, ecoff_rel, ecoff_dump_seclet, ecoff_add_string, ecoff_get_debug): Removed. Functionality now in ecofflink.c. (ecoff_get_extr, ecoff_set_index): New functions. (ecoff_slurp_symbolic_info): Don't save raw_size. (ecoff_bfd_seclet_link): Rewrote to use ecofflink.c functions. (ecoff_compute_section_file_positions): Don't set EXEC_P just because there is a start address. (ecoff_write_object_contents): Handle external symbols here. Use ecofflink.c functions to write out debugging information. * elf32-mips.c (mips_elf_read_ecoff_info, mips_elf_get_extr, mips_elf_set_index): New functions. (mips_elf_seclet_link): Discard empty sections, the .options section and .gptab sections. Handle linking .mdebug section. * libecoff.h (ecoff_data_type): Removed raw_size and ifdbase. * libelf.h (elf_symbol_type): Added mips_extr to tc_data union. * bfd-in.h: Added prototypes for routines in ecofflink.c (some are called by gas, so they are public). * bfd-in2.h: Rebuilt. * Makefile.in (BFD_LIBS): Added ecofflink.o. (CFILES): Added ecofflink.c. (ecofflink.o): New target. Rebuilt dependencies.
326 lines
12 KiB
C
326 lines
12 KiB
C
/* BFD back-end data structures for ELF files.
|
|
Copyright (C) 1992, 1993 Free Software Foundation, Inc.
|
|
Written by Cygnus Support.
|
|
|
|
This file is part of BFD, the Binary File Descriptor library.
|
|
|
|
This program 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 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
#ifndef _LIBELF_H_
|
|
#define _LIBELF_H_ 1
|
|
|
|
#include "elf/common.h"
|
|
#include "elf/internal.h"
|
|
#include "elf/external.h"
|
|
|
|
/* If size isn't specified as 64 or 32, NAME macro should fail. */
|
|
#ifndef NAME
|
|
#if ARCH_SIZE==64
|
|
#define NAME(x,y) CAT4(x,64,_,y)
|
|
#endif
|
|
#if ARCH_SIZE==32
|
|
#define NAME(x,y) CAT4(x,32,_,y)
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef NAME
|
|
#define NAME(x,y) CAT4(x,NOSIZE,_,y)
|
|
#endif
|
|
|
|
#define ElfNAME(X) NAME(Elf,X)
|
|
#define elfNAME(X) NAME(elf,X)
|
|
|
|
/* Information held for an ELF symbol. The first field is the
|
|
corresponding asymbol. Every symbol is an ELF file is actually a
|
|
pointer to this structure, although it is often handled as a
|
|
pointer to an asymbol. */
|
|
|
|
typedef struct
|
|
{
|
|
/* The BFD symbol. */
|
|
asymbol symbol;
|
|
/* ELF symbol information. */
|
|
Elf_Internal_Sym internal_elf_sym;
|
|
/* Backend specific information. */
|
|
union
|
|
{
|
|
unsigned int hppa_arg_reloc;
|
|
struct ecoff_extr *mips_extr;
|
|
PTR any;
|
|
}
|
|
tc_data;
|
|
} elf_symbol_type;
|
|
|
|
/* Constant information held for an ELF backend. */
|
|
|
|
struct elf_backend_data
|
|
{
|
|
/* Whether the backend uses REL or RELA relocations. FIXME: some
|
|
ELF backends use both. When we need to support one, this whole
|
|
approach will need to be changed. */
|
|
int use_rela_p;
|
|
|
|
/* Whether this backend is 64 bits or not. FIXME: Who cares? */
|
|
int elf_64_p;
|
|
|
|
/* The architecture for this backend. */
|
|
enum bfd_architecture arch;
|
|
|
|
/* The ELF machine code (EM_xxxx) for this backend. */
|
|
int elf_machine_code;
|
|
|
|
/* The maximum page size for this backend. */
|
|
bfd_vma maxpagesize;
|
|
|
|
/* A function to translate an ELF RELA relocation to a BFD arelent
|
|
structure. */
|
|
void (*elf_info_to_howto) PARAMS ((bfd *, arelent *,
|
|
Elf_Internal_Rela *));
|
|
|
|
/* A function to translate an ELF REL relocation to a BFD arelent
|
|
structure. */
|
|
void (*elf_info_to_howto_rel) PARAMS ((bfd *, arelent *,
|
|
Elf_Internal_Rel *));
|
|
|
|
/* A function to determine whether a symbol is global when
|
|
partitioning the symbol table into local and global symbols.
|
|
This should be NULL for most targets, in which case the correct
|
|
thing will be done. MIPS ELF, at least on the Irix 5, has
|
|
special requirements. */
|
|
boolean (*elf_backend_sym_is_global) PARAMS ((bfd *, asymbol *));
|
|
|
|
/* The remaining functions are hooks which are called only if they
|
|
are not NULL. */
|
|
|
|
/* A function to permit a backend specific check on whether a
|
|
particular BFD format is relevant for an object file, and to
|
|
permit the backend to set any global information it wishes. When
|
|
this is called elf_elfheader is set, but anything else should be
|
|
used with caution. If this returns false, the check_format
|
|
routine will return a wrong_format error. */
|
|
boolean (*elf_backend_object_p) PARAMS ((bfd *));
|
|
|
|
/* A function to do additional symbol processing when reading the
|
|
ELF symbol table. This is where any processor-specific special
|
|
section indices are handled. */
|
|
void (*elf_backend_symbol_processing) PARAMS ((bfd *, asymbol *));
|
|
|
|
/* A function to do additional symbol processing after reading the
|
|
entire ELF symbol table. */
|
|
boolean (*elf_backend_symbol_table_processing) PARAMS ((bfd *,
|
|
elf_symbol_type *,
|
|
int));
|
|
|
|
/* A function to do additional processing on the ELF section header
|
|
just before writing it out. This is used to set the flags and
|
|
type fields for some sections, or to actually write out data for
|
|
unusual sections. */
|
|
boolean (*elf_backend_section_processing) PARAMS ((bfd *,
|
|
Elf32_Internal_Shdr *));
|
|
|
|
/* A function to handle unusual section types when creating BFD
|
|
sections from ELF sections. */
|
|
boolean (*elf_backend_section_from_shdr) PARAMS ((bfd *,
|
|
Elf32_Internal_Shdr *,
|
|
char *));
|
|
|
|
/* A function to set up the ELF section header for a BFD section in
|
|
preparation for writing it out. This is where the flags and type
|
|
fields are set for unusual sections. */
|
|
boolean (*elf_backend_fake_sections) PARAMS ((bfd *, Elf32_Internal_Shdr *,
|
|
asection *));
|
|
|
|
/* A function to get the ELF section index for a BFD section. If
|
|
this returns true, the section was found. If it is a normal ELF
|
|
section, *RETVAL should be left unchanged. If it is not a normal
|
|
ELF section *RETVAL should be set to the SHN_xxxx index. */
|
|
boolean (*elf_backend_section_from_bfd_section)
|
|
PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *, int *retval));
|
|
|
|
/* A function to do any final processing needed for the ELF file
|
|
before writing it out. */
|
|
void (*elf_backend_final_write_processing) PARAMS ((bfd *));
|
|
|
|
/* The swapping table to use when dealing with ECOFF information.
|
|
Used for the MIPS ELF .mdebug section. */
|
|
const struct ecoff_debug_swap *elf_backend_ecoff_debug_swap;
|
|
};
|
|
|
|
struct elf_sym_extra
|
|
{
|
|
int elf_sym_num; /* sym# after locals/globals are reordered */
|
|
};
|
|
|
|
typedef struct elf_sym_extra Elf_Sym_Extra;
|
|
|
|
struct bfd_elf_section_data {
|
|
Elf_Internal_Shdr this_hdr;
|
|
Elf_Internal_Shdr rel_hdr;
|
|
int this_idx, rel_idx;
|
|
};
|
|
#define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd)
|
|
#define shdr_name(abfd,shdr) (elf_shstrtab (abfd)->tab + (shdr)->sh_name)
|
|
|
|
#define get_elf_backend_data(abfd) \
|
|
((struct elf_backend_data *) (abfd)->xvec->backend_data)
|
|
|
|
struct strtab
|
|
{
|
|
char *tab;
|
|
int nentries;
|
|
int length;
|
|
};
|
|
|
|
/* Some private data is stashed away for future use using the tdata pointer
|
|
in the bfd structure. */
|
|
|
|
struct elf_obj_tdata
|
|
{
|
|
Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */
|
|
Elf_Internal_Shdr **elf_sect_ptr;
|
|
Elf_Internal_Phdr *phdr;
|
|
struct strtab *strtab_ptr;
|
|
int num_locals;
|
|
int num_globals;
|
|
Elf_Internal_Sym *internal_syms;
|
|
elf_symbol_type *symbols; /* elf_symbol_type */
|
|
Elf_Sym_Extra *sym_extra;
|
|
asymbol **section_syms; /* STT_SECTION symbols for each section */
|
|
int num_section_syms; /* number of section_syms allocated */
|
|
Elf_Internal_Shdr symtab_hdr;
|
|
Elf_Internal_Shdr shstrtab_hdr;
|
|
Elf_Internal_Shdr strtab_hdr;
|
|
int symtab_section, shstrtab_section, strtab_section;
|
|
file_ptr next_file_pos;
|
|
void *prstatus; /* The raw /proc prstatus structure */
|
|
void *prpsinfo; /* The raw /proc prpsinfo structure */
|
|
bfd_vma gp; /* The gp value (MIPS only, for now) */
|
|
int gp_size; /* The gp size (MIPS only, for now) */
|
|
};
|
|
|
|
#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
|
|
#define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header)
|
|
#define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr)
|
|
#define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr)
|
|
#define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
|
|
#define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals)
|
|
#define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals)
|
|
#define elf_sym_extra(bfd) (elf_tdata(bfd) -> sym_extra)
|
|
#define elf_section_syms(bfd) (elf_tdata(bfd) -> section_syms)
|
|
#define elf_num_section_syms(bfd) (elf_tdata(bfd) -> num_section_syms)
|
|
#define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo)
|
|
#define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus)
|
|
#define obj_symbols(bfd) (elf_tdata(bfd) -> symbols)
|
|
#define obj_internal_syms(bfd) (elf_tdata(bfd) -> internal_syms)
|
|
#define elf_gp(bfd) (elf_tdata(bfd) -> gp)
|
|
#define elf_gp_size(bfd) (elf_tdata(bfd) -> gp_size)
|
|
|
|
extern char * elf_string_from_elf_section PARAMS ((bfd *, unsigned, unsigned));
|
|
extern char * elf_get_str_section PARAMS ((bfd *, unsigned));
|
|
|
|
#define bfd_elf32_mkobject bfd_elf_mkobject
|
|
#define bfd_elf64_mkobject bfd_elf_mkobject
|
|
#define elf_mkobject bfd_elf_mkobject
|
|
|
|
extern unsigned long bfd_elf_hash PARAMS ((CONST unsigned char *));
|
|
|
|
extern bfd_reloc_status_type bfd_elf_generic_reloc PARAMS ((bfd *,
|
|
arelent *,
|
|
asymbol *,
|
|
PTR,
|
|
asection *,
|
|
bfd *));
|
|
extern boolean bfd_elf_mkobject PARAMS ((bfd *));
|
|
extern Elf_Internal_Shdr *bfd_elf_find_section PARAMS ((bfd *, char *));
|
|
|
|
extern boolean bfd_elf32_write_object_contents PARAMS ((bfd *));
|
|
extern boolean bfd_elf64_write_object_contents PARAMS ((bfd *));
|
|
|
|
extern bfd_target *bfd_elf32_object_p PARAMS ((bfd *));
|
|
extern bfd_target *bfd_elf32_core_file_p PARAMS ((bfd *));
|
|
extern char *bfd_elf32_core_file_failing_command PARAMS ((bfd *));
|
|
extern int bfd_elf32_core_file_failing_signal PARAMS ((bfd *));
|
|
extern boolean bfd_elf32_core_file_matches_executable_p PARAMS ((bfd *,
|
|
bfd *));
|
|
extern boolean bfd_elf32_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
|
|
file_ptr,
|
|
bfd_size_type));
|
|
|
|
extern unsigned int bfd_elf32_get_symtab_upper_bound PARAMS ((bfd *));
|
|
extern unsigned int bfd_elf32_get_symtab PARAMS ((bfd *, asymbol **));
|
|
extern unsigned int bfd_elf32_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
|
|
extern unsigned int bfd_elf32_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
|
|
arelent **,
|
|
asymbol **));
|
|
extern asymbol *bfd_elf32_make_empty_symbol PARAMS ((bfd *));
|
|
extern void bfd_elf32_print_symbol PARAMS ((bfd *, PTR, asymbol *,
|
|
bfd_print_symbol_type));
|
|
extern void bfd_elf32_get_symbol_info PARAMS ((bfd *, asymbol *,
|
|
symbol_info *));
|
|
extern alent *bfd_elf32_get_lineno PARAMS ((bfd *, asymbol *));
|
|
extern boolean bfd_elf32_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
|
|
unsigned long));
|
|
extern boolean bfd_elf32_find_nearest_line PARAMS ((bfd *, asection *,
|
|
asymbol **,
|
|
bfd_vma, CONST char **,
|
|
CONST char **,
|
|
unsigned int *));
|
|
extern int bfd_elf32_sizeof_headers PARAMS ((bfd *, boolean));
|
|
extern void bfd_elf32__write_relocs PARAMS ((bfd *, asection *, PTR));
|
|
extern boolean bfd_elf32_new_section_hook PARAMS ((bfd *, asection *));
|
|
|
|
/* If the target doesn't have reloc handling written yet: */
|
|
extern void bfd_elf32_no_info_to_howto PARAMS ((bfd *, arelent *,
|
|
Elf32_Internal_Rela *));
|
|
|
|
extern bfd_target *bfd_elf64_object_p PARAMS ((bfd *));
|
|
extern bfd_target *bfd_elf64_core_file_p PARAMS ((bfd *));
|
|
extern char *bfd_elf64_core_file_failing_command PARAMS ((bfd *));
|
|
extern int bfd_elf64_core_file_failing_signal PARAMS ((bfd *));
|
|
extern boolean bfd_elf64_core_file_matches_executable_p PARAMS ((bfd *,
|
|
bfd *));
|
|
extern boolean bfd_elf64_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
|
|
file_ptr,
|
|
bfd_size_type));
|
|
|
|
extern unsigned int bfd_elf64_get_symtab_upper_bound PARAMS ((bfd *));
|
|
extern unsigned int bfd_elf64_get_symtab PARAMS ((bfd *, asymbol **));
|
|
extern unsigned int bfd_elf64_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
|
|
extern unsigned int bfd_elf64_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
|
|
arelent **,
|
|
asymbol **));
|
|
extern asymbol *bfd_elf64_make_empty_symbol PARAMS ((bfd *));
|
|
extern void bfd_elf64_print_symbol PARAMS ((bfd *, PTR, asymbol *,
|
|
bfd_print_symbol_type));
|
|
extern void bfd_elf64_get_symbol_info PARAMS ((bfd *, asymbol *,
|
|
symbol_info *));
|
|
extern alent *bfd_elf64_get_lineno PARAMS ((bfd *, asymbol *));
|
|
extern boolean bfd_elf64_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
|
|
unsigned long));
|
|
extern boolean bfd_elf64_find_nearest_line PARAMS ((bfd *, asection *,
|
|
asymbol **,
|
|
bfd_vma, CONST char **,
|
|
CONST char **,
|
|
unsigned int *));
|
|
extern int bfd_elf64_sizeof_headers PARAMS ((bfd *, boolean));
|
|
extern void bfd_elf64__write_relocs PARAMS ((bfd *, asection *, PTR));
|
|
extern boolean bfd_elf64_new_section_hook PARAMS ((bfd *, asection *));
|
|
|
|
/* If the target doesn't have reloc handling written yet: */
|
|
extern void bfd_elf64_no_info_to_howto PARAMS ((bfd *, arelent *,
|
|
Elf64_Internal_Rela *));
|
|
|
|
#endif /* _LIBELF_H_ */
|