/* BFD back-end data structures for ELF files.
- Copyright (C) 1992-2021 Free Software Foundation, Inc.
+ Copyright (C) 1992-2022 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
#ifndef _LIBELF_H_
#define _LIBELF_H_ 1
+#include <stdlib.h>
+
#include "elf/common.h"
#include "elf/external.h"
#include "elf/internal.h"
_bfd_elf_symbol_refs_local_p (H, INFO, 1)
/* Whether an undefined weak symbol should resolve to its link-time
- value, even in PIC or PIE objects. */
+ value, even in PIC or PIE objects. The linker_def test is to
+ handle symbols like __ehdr_start that may be undefweak in early
+ stages of linking but are guaranteed to be defined later. */
#define UNDEFWEAK_NO_DYNAMIC_RELOC(INFO, H) \
((H)->root.type == bfd_link_hash_undefweak \
+ && !(H)->root.linker_def \
&& (ELF_ST_VISIBILITY ((H)->other) != STV_DEFAULT \
|| (INFO)->dynamic_undefined_weak == 0))
{
AARCH64_ELF_DATA = 1,
ALPHA_ELF_DATA,
+ AMDGCN_ELF_DATA,
ARC_ELF_DATA,
ARM_ELF_DATA,
AVR_ELF_DATA,
I386_ELF_DATA,
IA64_ELF_DATA,
LM32_ELF_DATA,
+ LARCH_ELF_DATA,
M32R_ELF_DATA,
M68HC11_ELF_DATA,
M68K_ELF_DATA,
{
Elf_Internal_Sym sym;
unsigned long dest_index;
- unsigned long destshndx_index;
};
struct bfd_link_needed_list
/* TRUE if DT_JMPREL is a required dynamic tag. */
bool dt_jmprel_required;
+ /* TRUE when we are handling DT_NEEDED entries. */
+ bool handling_dt_needed;
+
/* The BFD used to hold special sections created by the linker.
This will be the first BFD found which requires these sections to
be created. */
section. */
struct elf_strtab_hash *dynstr;
- /* The number of symbol strings found in the link which must be put
- into the .strtab section. */
- bfd_size_type strtabcount;
-
/* The array size of the symbol string table, which becomes the
.strtab section. */
bfd_size_type strtabsize;
asection *irelplt;
asection *irelifunc;
asection *dynsym;
+ asection *srelrdyn;
};
/* Returns TRUE if the hash table is a struct elf_link_hash_table. */
/* The common page size for this backend. */
bfd_vma commonpagesize;
- /* The value of commonpagesize to use when -z relro for this backend. */
- bfd_vma relropagesize;
+ /* The p_align value for this backend. If it is set, p_align of
+ PT_LOAD alignment will be to p_align by default. */
+ bfd_vma p_align;
/* The BFD flags applied to sections created for dynamic linking. */
flagword dynamic_sec_flags;
that CHECK_RELOCS will properly process them. PR 4424. */
bool (*relocs_compatible) (const bfd_target *, const bfd_target *);
- /* The CHECK_RELOCS function is called by the add_symbols phase of
- the ELF backend linker. It is called once for each section with
- relocs of an object file, just after the symbols for the object
- file have been added to the global linker hash table. The
- function must look through the relocs and do any special handling
- required. This generally means allocating space in the global
- offset table, and perhaps allocating space for a reloc. The
+ /* The CHECK_RELOCS function is called after all input files have been
+ opened. It is called once for each section with relocs of an object
+ file. The function must look through the relocs and do any special
+ handling required. This generally means allocating space in the
+ global offset table, and perhaps allocating space for a reloc. The
relocs are always passed as Rela structures; if the section
actually uses Rel structures, the r_addend field will always be
zero. */
(bfd *abfd, struct bfd_link_info *info, asection *o,
const Elf_Internal_Rela *relocs);
+ /* The SIZE_RELATIVE_RELOCS function is called to size relative
+ relocations when mappig sections to segments. */
+ bool (*size_relative_relocs)
+ (struct bfd_link_info *info, bool *need_layout);
+
+ /* The FINISH_RELATIVE_RELOCS function is called to finish relative
+ relocations in bfd_elf_final_link. */
+ bool (*finish_relative_relocs)
+ (struct bfd_link_info *info);
+
/* The CHECK_DIRECTIVES function is called once per input file by
the add_symbols phase of the ELF backend linker. The function
must inspect the bfd and create any additional symbols according
#define LEAST_KNOWN_OBJ_ATTRIBUTE 2
/* The maximum number of known object attributes for any target. */
-#define NUM_KNOWN_OBJ_ATTRIBUTES 71
+#define NUM_KNOWN_OBJ_ATTRIBUTES 77
/* The value of an object attribute. The type indicates whether the attribute
holds and integer, a string, or both. It can also indicate that there can
/* STT_SECTION symbols for each section */
asymbol **section_syms;
- /* Used to determine if PT_GNU_EH_FRAME segment header should be
- created. */
- asection *eh_frame_hdr;
-
/* NT_GNU_BUILD_ID note type info. */
struct
{
/* Linker information. */
struct bfd_link_info *link_info;
- int num_section_syms;
+ unsigned int num_section_syms;
unsigned int shstrtab_section, strtab_section;
/* Segment flags for the PT_GNU_STACK segment. */
property. */
unsigned int has_no_copy_on_protected : 1;
+ /* Whether if the bfd contains the
+ GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS property. */
+ unsigned int has_indirect_extern_access : 1;
+
/* Irix 5 often screws up the symbol table, sorting local symbols
after global symbols. This flag is set if the symbol table in
this BFD appears to be screwed up. If it is, we ignore the
symbols. */
unsigned int bad_symtab : 1;
+ /* Set if DT_FLAGS_1 has DF_1_PIE set. */
+ unsigned int is_pie : 1;
+
/* Information grabbed from an elf core file. */
struct core_elf_obj_tdata *core;
#define elf_seg_map(bfd) (elf_tdata(bfd) -> o->seg_map)
#define elf_link_info(bfd) (elf_tdata(bfd) -> o->link_info)
#define elf_next_file_pos(bfd) (elf_tdata(bfd) -> o->next_file_pos)
-#define elf_eh_frame_hdr(bfd) (elf_tdata(bfd) -> o->eh_frame_hdr)
#define elf_stack_flags(bfd) (elf_tdata(bfd) -> o->stack_flags)
#define elf_shstrtab(bfd) (elf_tdata(bfd) -> o->strtab_ptr)
#define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
#define elf_properties(bfd) (elf_tdata (bfd) -> properties)
#define elf_has_no_copy_on_protected(bfd) \
(elf_tdata(bfd) -> has_no_copy_on_protected)
+#define elf_has_indirect_extern_access(bfd) \
+ (elf_tdata(bfd) -> has_indirect_extern_access)
\f
extern void _bfd_elf_swap_verdef_in
(bfd *, const Elf_External_Verdef *, Elf_Internal_Verdef *);
extern bool _bfd_elf_adjust_eh_frame_global_symbol
(struct elf_link_hash_entry *, void *);
extern bool _bfd_elf_discard_section_eh_frame_hdr
- (bfd *, struct bfd_link_info *);
+ (struct bfd_link_info *);
extern bfd_vma _bfd_elf_eh_frame_section_offset
(bfd *, struct bfd_link_info *, asection *, bfd_vma);
extern bool _bfd_elf_write_section_eh_frame
extern Elf_Internal_Rela *_bfd_elf_link_read_relocs
(bfd *, asection *, void *, Elf_Internal_Rela *, bool);
+extern Elf_Internal_Rela *_bfd_elf_link_info_read_relocs
+ (bfd *, struct bfd_link_info *, asection *, void *, Elf_Internal_Rela *,
+ bool);
extern bool _bfd_elf_link_output_relocs
(bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *,
(bfd *, struct bfd_link_info *);
extern bool _bfd_elf_link_check_relocs
(bfd *, struct bfd_link_info *);
+extern bool _bfd_elf_link_iterate_on_relocs
+ (bfd *, struct bfd_link_info *,
+ bool (*) (bfd *, struct bfd_link_info *, asection *,
+ const Elf_Internal_Rela *));
extern bool bfd_elf_link_record_dynamic_symbol
(struct bfd_link_info *, struct elf_link_hash_entry *);
(bfd *, asection *);
extern bool _bfd_elf_map_sections_to_segments
- (bfd *, struct bfd_link_info *);
+ (bfd *, struct bfd_link_info *, bool *);
extern bool _bfd_elf_is_function_type (unsigned int);
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_xstatereg
(bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_x86_segbases
+ (bfd *, char *, int *, const void *, int);
extern char *elfcore_write_ppc_vmx
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_ppc_vsx
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_aarch_pauth
(bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_aarch_mte
+ (bfd *, char *, int *, const void *, int);
extern char *elfcore_write_arc_v2
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_riscv_csr
(bfd *, char *, int *, const char *, const void *, int);
extern char *elfcore_write_file_note
(bfd *, char *, int *, const void*, int);
+extern char *elfcore_write_loongarch_cpucfg
+ (bfd *, char *, int *, const void*, int);
+extern char *elfcore_write_loongarch_lbt
+ (bfd *, char *, int *, const void*, int);
+extern char *elfcore_write_loongarch_lsx
+ (bfd *, char *, int *, const void*, int);
+extern char *elfcore_write_loongarch_lasx
+ (bfd *, char *, int *, const void*, int);
/* Internal structure which holds information to be included in the
PRPSINFO section of Linux core files.
projects / binutils-gdb.git / blobdiff