mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-05 08:14:19 +08:00
ba75d1c55c
doc/bfdint.texi and comments in the aout and som code about this function are just wrong, and its name is not very apt. Better would be _bfd_mostly_destroy, and we certainly should not be saying anything about the possibility of later recreating anything lost by this function. What's more, if _bfd_free_cached_info is called when creating an archive map to reduce memory usage by throwing away symbols, the target _close_and_cleanup function won't have access to tdata or section bfd_user_data to tidy memory. This means most of the target _close_and_cleanup function won't do anything, and therefore sometimes will result in memory leaks. This patch fixes the documentation problems and moves most of the target _close_and_cleanup code to target _bfd_free_cached_info. Another notable change is that bfd_generic_bfd_free_cached_info is now defined as _bfd_free_cached_info rather than _bfd_bool_bfd_true, ie. the default now frees objalloc memory.
228 lines
9.1 KiB
C
228 lines
9.1 KiB
C
/* MIPS ELF specific backend routines.
|
|
Copyright (C) 2002-2023 Free Software Foundation, Inc.
|
|
|
|
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 3 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., 51 Franklin Street - Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
#include "elf/common.h"
|
|
#include "elf/internal.h"
|
|
#include "elf/mips.h"
|
|
|
|
enum reloc_check
|
|
{
|
|
check_std,
|
|
check_inplace,
|
|
check_shuffle
|
|
};
|
|
|
|
#ifndef MIPS_DEFAULT_R6
|
|
#define MIPS_DEFAULT_R6 0
|
|
#endif
|
|
|
|
struct ecoff_debug_info;
|
|
|
|
extern bool _bfd_mips_elf_mkobject
|
|
(bfd *);
|
|
extern bool _bfd_mips_elf_free_cached_info
|
|
(bfd *);
|
|
extern bool _bfd_mips_elf_new_section_hook
|
|
(bfd *, asection *);
|
|
extern void _bfd_mips_elf_symbol_processing
|
|
(bfd *, asymbol *);
|
|
extern unsigned int _bfd_mips_elf_eh_frame_address_size
|
|
(bfd *, const asection *);
|
|
extern bool _bfd_mips_elf_name_local_section_symbols
|
|
(bfd *);
|
|
extern bool _bfd_mips_elf_section_processing
|
|
(bfd *, Elf_Internal_Shdr *);
|
|
extern bool _bfd_mips_elf_section_from_shdr
|
|
(bfd *, Elf_Internal_Shdr *, const char *, int);
|
|
extern bool _bfd_mips_elf_fake_sections
|
|
(bfd *, Elf_Internal_Shdr *, asection *);
|
|
extern bool _bfd_mips_elf_section_from_bfd_section
|
|
(bfd *, asection *, int *);
|
|
extern bool _bfd_mips_elf_add_symbol_hook
|
|
(bfd *, struct bfd_link_info *, Elf_Internal_Sym *,
|
|
const char **, flagword *, asection **, bfd_vma *);
|
|
extern int _bfd_mips_elf_link_output_symbol_hook
|
|
(struct bfd_link_info *, const char *, Elf_Internal_Sym *,
|
|
asection *, struct elf_link_hash_entry *);
|
|
extern bool _bfd_mips_elf_create_dynamic_sections
|
|
(bfd *, struct bfd_link_info *);
|
|
extern bool _bfd_mips_elf_check_relocs
|
|
(bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
|
|
extern bool _bfd_mips_elf_adjust_dynamic_symbol
|
|
(struct bfd_link_info *, struct elf_link_hash_entry *);
|
|
extern bool _bfd_mips_elf_always_size_sections
|
|
(bfd *, struct bfd_link_info *);
|
|
extern bool _bfd_mips_elf_size_dynamic_sections
|
|
(bfd *, struct bfd_link_info *);
|
|
extern int _bfd_mips_elf_relocate_section
|
|
(bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
|
|
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
|
|
extern bool _bfd_mips_elf_finish_dynamic_symbol
|
|
(bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
|
|
Elf_Internal_Sym *);
|
|
extern bool _bfd_mips_vxworks_finish_dynamic_symbol
|
|
(bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
|
|
Elf_Internal_Sym *);
|
|
extern bool _bfd_mips_elf_finish_dynamic_sections
|
|
(bfd *, struct bfd_link_info *);
|
|
extern bool _bfd_mips_elf_sort_relocs_p
|
|
(asection *);
|
|
extern void _bfd_mips_final_write_processing
|
|
(bfd *);
|
|
extern bool _bfd_mips_elf_final_write_processing
|
|
(bfd *);
|
|
extern int _bfd_mips_elf_additional_program_headers
|
|
(bfd *, struct bfd_link_info *);
|
|
extern bool _bfd_mips_elf_modify_segment_map
|
|
(bfd *, struct bfd_link_info *);
|
|
extern asection * _bfd_mips_elf_gc_mark_hook
|
|
(asection *, struct bfd_link_info *, Elf_Internal_Rela *,
|
|
struct elf_link_hash_entry *, Elf_Internal_Sym *);
|
|
extern void _bfd_mips_elf_copy_indirect_symbol
|
|
(struct bfd_link_info *, struct elf_link_hash_entry *,
|
|
struct elf_link_hash_entry *);
|
|
extern void _bfd_mips_elf_hide_symbol
|
|
(struct bfd_link_info *, struct elf_link_hash_entry *, bool);
|
|
extern bool _bfd_mips_elf_ignore_discarded_relocs
|
|
(asection *);
|
|
extern bool _bfd_mips_elf_is_target_special_symbol
|
|
(bfd *abfd, asymbol *sym);
|
|
extern bool _bfd_mips_elf_find_nearest_line
|
|
(bfd *, asymbol **, asection *, bfd_vma,
|
|
const char **, const char **, unsigned int *, unsigned int *);
|
|
#define _bfd_mips_elf_find_nearest_line_with_alt \
|
|
_bfd_nosymbols_find_nearest_line_with_alt
|
|
extern bool _bfd_mips_elf_find_inliner_info
|
|
(bfd *, const char **, const char **, unsigned int *);
|
|
extern bool _bfd_mips_elf_set_section_contents
|
|
(bfd *, asection *, const void *, file_ptr, bfd_size_type);
|
|
extern bfd_byte *_bfd_elf_mips_get_relocated_section_contents
|
|
(bfd *, struct bfd_link_info *, struct bfd_link_order *,
|
|
bfd_byte *, bool, asymbol **);
|
|
extern bool _bfd_mips_elf_relax_section
|
|
(bfd *abfd, asection *sec, struct bfd_link_info *link_info,
|
|
bool *again);
|
|
extern struct bfd_link_hash_table *_bfd_mips_elf_link_hash_table_create
|
|
(bfd *);
|
|
extern struct bfd_link_hash_table *_bfd_mips_vxworks_link_hash_table_create
|
|
(bfd *);
|
|
extern bool _bfd_mips_elf_final_link
|
|
(bfd *, struct bfd_link_info *);
|
|
extern bool _bfd_mips_elf_merge_private_bfd_data
|
|
(bfd *, struct bfd_link_info *);
|
|
extern bool _bfd_mips_elf_set_private_flags
|
|
(bfd *, flagword);
|
|
extern const char * _bfd_mips_fp_abi_string
|
|
(int);
|
|
extern bool _bfd_mips_elf_print_private_bfd_data
|
|
(bfd *, void *);
|
|
extern bool _bfd_mips_elf_discard_info
|
|
(bfd *, struct elf_reloc_cookie *, struct bfd_link_info *);
|
|
extern bool _bfd_mips_elf_write_section
|
|
(bfd *, struct bfd_link_info *, asection *, bfd_byte *);
|
|
|
|
extern bool _bfd_mips_elf_read_ecoff_info
|
|
(bfd *, asection *, struct ecoff_debug_info *);
|
|
extern void _bfd_mips_elf_reloc_unshuffle
|
|
(bfd *, int, bool, bfd_byte *);
|
|
extern void _bfd_mips_elf_reloc_shuffle
|
|
(bfd *, int, bool, bfd_byte *);
|
|
extern bool _bfd_mips_reloc_offset_in_range
|
|
(bfd *, asection *, arelent *, enum reloc_check);
|
|
extern bfd_reloc_status_type _bfd_mips_elf_gprel16_with_gp
|
|
(bfd *, asymbol *, arelent *, asection *, bool, void *, bfd_vma);
|
|
extern bfd_reloc_status_type _bfd_mips_elf32_gprel16_reloc
|
|
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
|
|
extern bfd_reloc_status_type _bfd_mips_elf_hi16_reloc
|
|
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
|
|
extern bfd_reloc_status_type _bfd_mips_elf_got16_reloc
|
|
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
|
|
extern bfd_reloc_status_type _bfd_mips_elf_lo16_reloc
|
|
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
|
|
extern bfd_reloc_status_type _bfd_mips_elf_generic_reloc
|
|
(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
|
|
extern unsigned long _bfd_elf_mips_mach
|
|
(flagword);
|
|
extern bfd_vma _bfd_mips_elf_sign_extend
|
|
(bfd_vma, int);
|
|
extern void _bfd_mips_elf_merge_symbol_attribute
|
|
(struct elf_link_hash_entry *, unsigned int, bool, bool);
|
|
extern char *_bfd_mips_elf_get_target_dtag (bfd_vma);
|
|
extern bool _bfd_mips_elf_ignore_undef_symbol
|
|
(struct elf_link_hash_entry *);
|
|
extern void _bfd_mips_elf_use_plts_and_copy_relocs
|
|
(struct bfd_link_info *);
|
|
extern void _bfd_mips_elf_linker_flags
|
|
(struct bfd_link_info *, bool, bool, bool);
|
|
extern void _bfd_mips_elf_compact_branches
|
|
(struct bfd_link_info *, bool);
|
|
extern bool _bfd_mips_elf_init_stubs
|
|
(struct bfd_link_info *,
|
|
asection *(*) (const char *, asection *, asection *));
|
|
extern bfd_vma _bfd_mips_elf_plt_sym_val
|
|
(bfd_vma, const asection *, const arelent *rel);
|
|
extern long _bfd_mips_elf_get_synthetic_symtab
|
|
(bfd *, long, asymbol **, long, asymbol **, asymbol **);
|
|
extern bool _bfd_mips_elf_gc_mark_extra_sections
|
|
(struct bfd_link_info *, elf_gc_mark_hook_fn);
|
|
extern bool _bfd_mips_init_file_header
|
|
(bfd *abfd, struct bfd_link_info *link_info);
|
|
|
|
extern const struct bfd_elf_special_section _bfd_mips_elf_special_sections [];
|
|
|
|
extern bool _bfd_mips_elf_common_definition (Elf_Internal_Sym *);
|
|
|
|
extern int _bfd_mips_elf_compact_eh_encoding (struct bfd_link_info *);
|
|
extern int _bfd_mips_elf_cant_unwind_opcode (struct bfd_link_info *);
|
|
|
|
extern void _bfd_mips_elf_record_xhash_symbol
|
|
(struct elf_link_hash_entry *h, bfd_vma xlat_loc);
|
|
|
|
/* MIPS ABI flags data access. For the disassembler. */
|
|
extern struct elf_internal_abiflags_v0 *bfd_mips_elf_get_abiflags (bfd *);
|
|
|
|
static inline bool
|
|
gprel16_reloc_p (unsigned int r_type)
|
|
{
|
|
return (r_type == R_MIPS_GPREL16
|
|
|| r_type == R_MIPS16_GPREL
|
|
|| r_type == R_MICROMIPS_GPREL16
|
|
|| r_type == R_MICROMIPS_GPREL7_S2);
|
|
}
|
|
|
|
static inline bool
|
|
literal_reloc_p (int r_type)
|
|
{
|
|
return r_type == R_MIPS_LITERAL || r_type == R_MICROMIPS_LITERAL;
|
|
}
|
|
|
|
#define elf_backend_common_definition _bfd_mips_elf_common_definition
|
|
#define elf_backend_name_local_section_symbols \
|
|
_bfd_mips_elf_name_local_section_symbols
|
|
#define elf_backend_special_sections _bfd_mips_elf_special_sections
|
|
#define elf_backend_eh_frame_address_size _bfd_mips_elf_eh_frame_address_size
|
|
#define elf_backend_merge_symbol_attribute _bfd_mips_elf_merge_symbol_attribute
|
|
#define elf_backend_ignore_undef_symbol _bfd_mips_elf_ignore_undef_symbol
|
|
#define elf_backend_init_file_header _bfd_mips_init_file_header
|
|
#define elf_backend_compact_eh_encoding _bfd_mips_elf_compact_eh_encoding
|
|
#define elf_backend_cant_unwind_opcode _bfd_mips_elf_cant_unwind_opcode
|
|
#define elf_backend_record_xhash_symbol _bfd_mips_elf_record_xhash_symbol
|
|
#define elf_backend_always_renumber_dynsyms true
|