darlinghq/darling-gdb
1
0
Fork 0
mirror of https://github.com/darlinghq/darling-gdb.git synced 2024-11-24 04:29:49 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
c5e92cca56
darling-gdb/bfd/mach-o-target.c
Alan Modra caa4096e84 Don't call bfd_link_hash_table_free 
Freeing the linker hash table is a royal pain.  It can't be freed
before the _bfd_write_contents call in bfd_close, because some target
bfd_write_contents functions access the hash table.  It can't be freed
after bfd_close either, since bfd_alloc memory holding side data
structures disappears (PR17047).  Clearly the only place it can be freed
is actually in bfd_close.  This patch doesn't do that, but kills off
the existing means of freeing the hash table via a bfd target xvec call.

bfd/
	PR 17047
	* targets.c (BFD_JUMP_TABLE): Delete NAME##_bfd_link_hash_table_free.
	(struct bfd_target <_bfd_link_hash_table_free>): Delete.
	* bfd.c (bfd_link_hash_table_free): Don't define.
	* aout-adobe.c, * aout-target.h, * aout-tic30.c, * binary.c, * bout.c,
	* coff64-rs6000.c, * coffcode.h, * elf-m10300.c, * elf32-arm.c,
	* elf32-avr.c, * elf32-hppa.c, * elf32-i386.c, * elf32-m68hc11.c,
	* elf32-m68hc12.c, * elf32-m68k.c, * elf32-metag.c, * elf32-nios2.c,
	* elf32-sparc.c, * elf32-xgate.c, * elf64-ia64-vms.c, * elf64-ppc.c,
	* elf64-sparc.c, * elf64-x86-64.c, * elfnn-aarch64.c, * elfnn-ia64.c,
	* elfxx-target.h, * i386msdos.c, * i386os9k.c, * ieee.c, * ihex.c,
	* libbfd-in.h, * libecoff.h, * mach-o-target.c, * mmo.c,
	* nlm-target.h, * oasys.c, * pef.c, * plugin.c, * ppcboot.c, * som.c,
	* srec.c, * tekhex.c, * verilog.c, * versados.c, * vms-alpha.c,
	* xsym.c: Don't define various link_hash_table_free defines, and
	remove from bfd_target vars.  Temporarily reference some of the
	target link_hash_table_free functions to avoid warnings.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
ld/
	PR 17047
	* ldlang.c (output_bfd_hash_table_free_fn): Delete.
	(open_output): Don't set it..
	* ldmain.c (ld_cleanup): ..or call it.
2014-06-13 19:11:29 +09:30

190 lines
7.3 KiB
C
Raw Blame History

/* Mach-O support for BFD.
Copyright (C) 1999-2014 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. */
/* Define generic entry points here so that we don't need to duplicate the
defines in every target. But define once as this file may be included
several times. */
#ifndef MACH_O_TARGET_COMMON_DEFINED
#define MACH_O_TARGET_COMMON_DEFINED
#define bfd_mach_o_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define bfd_mach_o_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
#define bfd_mach_o_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data
#define bfd_mach_o_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define bfd_mach_o_bfd_is_local_label_name bfd_generic_is_local_label_name
#define bfd_mach_o_get_lineno _bfd_nosymbols_get_lineno
#define bfd_mach_o_find_inliner_info _bfd_nosymbols_find_inliner_info
#define bfd_mach_o_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
#define bfd_mach_o_read_minisymbols _bfd_generic_read_minisymbols
#define bfd_mach_o_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
#define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
#define bfd_mach_o_bfd_relax_section bfd_generic_relax_section
#define bfd_mach_o_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
#define bfd_mach_o_bfd_link_add_symbols _bfd_generic_link_add_symbols
#define bfd_mach_o_bfd_link_just_syms _bfd_generic_link_just_syms
#define bfd_mach_o_bfd_copy_link_hash_symbol_type \
_bfd_generic_copy_link_hash_symbol_type
#define bfd_mach_o_bfd_final_link _bfd_generic_final_link
#define bfd_mach_o_bfd_link_split_section _bfd_generic_link_split_section
#define bfd_mach_o_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
#define bfd_mach_o_bfd_set_private_flags bfd_mach_o_bfd_set_private_flags
#define bfd_mach_o_get_section_contents _bfd_generic_get_section_contents
#define bfd_mach_o_bfd_gc_sections bfd_generic_gc_sections
#define bfd_mach_o_bfd_lookup_section_flags bfd_generic_lookup_section_flags
#define bfd_mach_o_bfd_merge_sections bfd_generic_merge_sections
#define bfd_mach_o_bfd_is_group_section bfd_generic_is_group_section
#define bfd_mach_o_bfd_discard_group bfd_generic_discard_group
#define bfd_mach_o_section_already_linked _bfd_generic_section_already_linked
#define bfd_mach_o_bfd_define_common_symbol bfd_generic_define_common_symbol
#define bfd_mach_o_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
#define bfd_mach_o_core_file_matches_executable_p generic_core_file_matches_executable_p
#define bfd_mach_o_core_file_pid _bfd_nocore_core_file_pid
#define bfd_mach_o_get_dynamic_symtab_upper_bound bfd_mach_o_get_symtab_upper_bound
#define bfd_mach_o_canonicalize_dynamic_symtab bfd_mach_o_canonicalize_symtab
#define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend)
#endif /* MACH_O_TARGET_COMMON_DEFINED */
#ifndef TARGET_NAME
#error TARGET_NAME must be defined
#endif /* TARGET_NAME */
#ifndef TARGET_STRING
#error TARGET_STRING must be defined
#endif /* TARGET_STRING */
#ifndef TARGET_ARCHITECTURE
#error TARGET_ARCHITECTURE must be defined
#endif /* TARGET_ARCHITECTURE */
#ifndef TARGET_BIG_ENDIAN
#error TARGET_BIG_ENDIAN must be defined
#endif /* TARGET_BIG_ENDIAN */
#ifndef TARGET_ARCHIVE
#error TARGET_ARCHIVE must be defined
#endif /* TARGET_ARCHIVE */
#ifndef TARGET_PAGESIZE
#error TARGET_PAGESIZE must be defined
#endif
#if ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN))
#error Mach-O fat files must always be big-endian.
#endif /* ((TARGET_ARCHIVE) && (! TARGET_BIG_ENDIAN)) */
static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
{
TARGET_ARCHITECTURE,
TARGET_PAGESIZE,
bfd_mach_o_swap_reloc_in,
bfd_mach_o_swap_reloc_out,
bfd_mach_o_print_thread,
bfd_mach_o_tgt_seg_table,
bfd_mach_o_section_type_valid_for_tgt
};
const bfd_target TARGET_NAME =
{
TARGET_STRING, /* Name. */
bfd_target_mach_o_flavour,
#if TARGET_BIG_ENDIAN
BFD_ENDIAN_BIG, /* Target byte order. */
BFD_ENDIAN_BIG, /* Target headers byte order. */
#else
BFD_ENDIAN_LITTLE, /* Target byte order. */
BFD_ENDIAN_LITTLE, /* Target headers byte order. */
#endif
(HAS_RELOC | EXEC_P | /* Object flags. */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
(SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
| SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
'_', /* symbol_leading_char. */
' ', /* ar_pad_char. */
16, /* ar_max_namelen. */
TARGET_PRIORITY, /* match priority. */
#if TARGET_BIG_ENDIAN
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Hdrs. */
#else
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
#endif /* TARGET_BIG_ENDIAN */
{ /* bfd_check_format. */
#if TARGET_ARCHIVE
_bfd_dummy_target,
_bfd_dummy_target,
bfd_mach_o_archive_p,
_bfd_dummy_target,
#else
_bfd_dummy_target,
bfd_mach_o_object_p,
bfd_generic_archive_p,
bfd_mach_o_core_p
#endif
},
{ /* bfd_set_format. */
bfd_false,
bfd_mach_o_mkobject,
_bfd_generic_mkarchive,
bfd_mach_o_mkobject,
},
{ /* bfd_write_contents. */
bfd_false,
bfd_mach_o_write_contents,
_bfd_write_archive_contents,
bfd_mach_o_write_contents,
},
BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
BFD_JUMP_TABLE_COPY (bfd_mach_o),
BFD_JUMP_TABLE_CORE (bfd_mach_o),
#if TARGET_ARCHIVE
BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
#else
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44),
#endif
BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
BFD_JUMP_TABLE_WRITE (bfd_mach_o),
BFD_JUMP_TABLE_LINK (bfd_mach_o),
BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o),
/* Alternative endian target. */
NULL,
/* Back-end data. */
&TARGET_NAME_BACKEND
};
Reference in New Issue View Git Blame Copy Permalink