/* BFD back-end data structures for ELF files.
- Copyright (C) 1992-2017 Free Software Foundation, Inc.
+ Copyright (C) 1992-2020 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
/* Same, but tracks a procedure linkage table entry. */
union gotplt_union plt;
- /* Symbol size. */
+ /* Symbol size. NB: All fields starting from here are cleared by
+ _bfd_elf_link_hash_newfunc. */
bfd_size_type size;
+ /* Track dynamic relocs copied for this symbol. */
+ struct elf_dyn_relocs *dyn_relocs;
+
/* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */
unsigned int type : 8;
/* Symbol is __start_SECNAME or __stop_SECNAME to mark section
SECNAME. */
unsigned int start_stop : 1;
+ /* Symbol is or was a weak defined symbol from a dynamic object with
+ a strong defined symbol alias. U.ALIAS points to a list of aliases,
+ the definition having is_weakalias clear. */
+ unsigned int is_weakalias : 1;
/* String table index in .dynstr if this is a dynamic symbol. */
unsigned long dynstr_index;
union
{
- /* If this is a weak defined symbol from a dynamic object, this
- field points to a defined symbol with the same value, if there is
- one. Otherwise it is NULL. */
- struct elf_link_hash_entry *weakdef;
+ /* Points to a circular list of non-function symbol aliases. */
+ struct elf_link_hash_entry *alias;
/* Hash value of the name computed using the ELF hash function.
Used part way through size_dynamic_sections, after we've finished
- with weakdefs. */
+ with aliases. */
unsigned long elf_hash_value;
} u;
} u2;
};
+/* Return the strong definition for a weak symbol with aliases. */
+
+static inline struct elf_link_hash_entry *
+weakdef (struct elf_link_hash_entry *h)
+{
+ while (h->is_weakalias)
+ h = h->u.alias;
+ return h;
+}
+
/* Will references to this symbol always reference the symbol
in this object? */
#define SYMBOL_REFERENCES_LOCAL(INFO, H) \
.eh_frame input section that contains the CIE. */
union {
struct cie *full_cie;
- struct eh_cie_fde *merged_with;
- asection *sec;
+ struct eh_cie_fde *merged_with;
+ asection *sec;
} u;
/* The offset of the personality data from the start of the CIE,
AVR_ELF_DATA,
BFIN_ELF_DATA,
CRIS_ELF_DATA,
+ CSKY_ELF_DATA,
FRV_ELF_DATA,
HPPA32_ELF_DATA,
HPPA64_ELF_DATA,
TIC6X_ELF_DATA,
X86_64_ELF_DATA,
XTENSA_ELF_DATA,
- XGATE_ELF_DATA,
TILEGX_ELF_DATA,
TILEPRO_ELF_DATA,
RISCV_ELF_DATA,
unsigned long destshndx_index;
};
+struct bfd_link_needed_list
+{
+ struct bfd_link_needed_list *next;
+ bfd *by;
+ const char *name;
+};
+
/* ELF linker hash table. */
struct elf_link_hash_table
when linking against or generating a shared object. */
bfd_boolean dynamic_sections_created;
+ /* Whether dynamic relocations are present. */
+ bfd_boolean dynamic_relocs;
+
/* True if this target has relocatable executables, so needs dynamic
section symbols. */
bfd_boolean is_relocatable_executable;
/* Cached first output tls section and size of PT_TLS segment. */
asection *tls_sec;
- bfd_size_type tls_size;
+ bfd_size_type tls_size; /* Bytes. */
- /* A linked list of BFD's loaded in the link. */
- struct elf_link_loaded_list *loaded;
+ /* A linked list of dynamic BFD's loaded in the link. */
+ struct elf_link_loaded_list *dyn_loaded;
/* Short-cuts to get to dynamic linker sections. */
asection *sgot;
#define elf_hash_table_id(table) ((table) -> hash_table_id)
/* Returns TRUE if the hash table is a struct elf_link_hash_table. */
-#define is_elf_hash_table(htab) \
+#define is_elf_hash_table(htab) \
(((struct bfd_link_hash_table *) (htab))->type == bfd_link_elf_hash_table)
/* Used by bfd_sym_from_r_symndx to cache a small number of local
};
#define elf_symbol_from(ABFD,S) \
- (((S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \
- && (S)->the_bfd->tdata.elf_obj_data != 0) \
- ? (elf_symbol_type *) (S) \
- : 0)
+ (((S)->the_bfd != NULL \
+ && (S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \
+ && (S)->the_bfd->tdata.elf_obj_data != 0) \
+ ? (elf_symbol_type *) (S) \
+ : 0)
enum elf_reloc_type_class {
reloc_class_normal,
/* 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 BFD flags applied to sections created for dynamic linking. */
flagword dynamic_sec_flags;
const void *arch_data;
/* A function to translate an ELF RELA relocation to a BFD arelent
- structure. */
- void (*elf_info_to_howto)
+ structure. Returns TRUE upon success, FALSE otherwise. */
+ bfd_boolean (*elf_info_to_howto)
(bfd *, arelent *, Elf_Internal_Rela *);
/* A function to translate an ELF REL relocation to a BFD arelent
- structure. */
- void (*elf_info_to_howto_rel)
+ structure. Returns TRUE upon success, FALSE otherwise. */
+ bfd_boolean (*elf_info_to_howto_rel)
(bfd *, arelent *, Elf_Internal_Rela *);
/* A function to determine whether a symbol is global when
/* A function to convert machine dependent ELF section header flags to
BFD internal section header flags. */
bfd_boolean (*elf_backend_section_flags)
- (flagword *, const Elf_Internal_Shdr *);
+ (const Elf_Internal_Shdr *);
/* A function that returns a struct containing ELF section flags and
type for the given BFD section. */
bfd_boolean (*elf_backend_size_dynamic_sections)
(bfd *output_bfd, struct bfd_link_info *info);
+ /* The STRIP_ZERO_SIZED_DYNAMIC_SECTIONS function is called by the
+ ELF backend linker to strip zero-sized dynamic sections after
+ the section sizes have been set. */
+ bfd_boolean (*elf_backend_strip_zero_sized_dynamic_sections)
+ (struct bfd_link_info *info);
+
/* Set TEXT_INDEX_SECTION and DATA_INDEX_SECTION, the output sections
we keep to use as a base for relocs and symbols. */
void (*elf_backend_init_index_section)
(bfd *, struct bfd_link_info *);
/* A function to do any final processing needed for the ELF file
- before writing it out. The LINKER argument is TRUE if this BFD
- was created by the ELF backend linker. */
- void (*elf_backend_final_write_processing)
- (bfd *, bfd_boolean linker);
+ before writing it out. */
+ bfd_boolean (*elf_backend_final_write_processing)
+ (bfd *);
/* This function is called by get_program_header_size. It should
return the number of additional program segments which this BFD
/* This function is called to modify program headers just before
they are written. */
- bfd_boolean (*elf_backend_modify_program_headers)
+ bfd_boolean (*elf_backend_modify_headers)
(bfd *, struct bfd_link_info *);
/* This function is called to see if the PHDR header should be
bfd_boolean (*gc_mark_extra_sections)
(struct bfd_link_info *, elf_gc_mark_hook_fn);
- /* This function, if defined, is called during the sweep phase of gc
- in order that a backend might update any data structures it might
- be maintaining. */
- bfd_boolean (*gc_sweep_hook)
- (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
-
- /* This function, if defined, is called after the ELF headers have
- been created. This allows for things like the OS and ABI versions
- to be changed. */
- void (*elf_backend_post_process_headers)
+ /* This function is called to initialise ELF file header info.
+ Customised versions can modify things like the OS and ABI version. */
+ bfd_boolean (*elf_backend_init_file_header)
(bfd *, struct bfd_link_info *);
/* This function, if defined, prints a symbol to file and returns the
(bfd *);
reloc_howto_type *(*elf_backend_mips_rtype_to_howto)
- (unsigned int, bfd_boolean);
+ (bfd *, unsigned int, bfd_boolean);
/* The swapping table to use when dealing with ECOFF information.
Used for the MIPS ELF .mdebug section. */
int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr,
bfd_size_type len));
+ bfd_boolean (*elf_backend_core_find_build_id) (bfd *, bfd_vma);
+
/* This function is used by `_bfd_elf_get_synthetic_symtab';
see elf.c. */
bfd_vma (*plt_sym_val) (bfd_vma, const asection *, const arelent *);
/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
bfd_boolean (*elf_hash_symbol) (struct elf_link_hash_entry *);
+ /* If non-NULL, called to register the location of XLAT_LOC within
+ .MIPS.xhash at which real final dynindx for H will be written.
+ If XLAT_LOC is zero, the symbol is not included in
+ .MIPS.xhash and no dynindx will be written. */
+ void (*record_xhash_symbol)
+ (struct elf_link_hash_entry *h, bfd_vma xlat_loc);
+
/* Return TRUE if type is a function symbol type. */
bfd_boolean (*is_function_type) (unsigned int type);
bfd_boolean (*elf_backend_copy_special_section_fields)
(const bfd *ibfd, bfd *obfd, const Elf_Internal_Shdr *isection,
Elf_Internal_Shdr *osection);
-
+
/* Used to handle bad SHF_LINK_ORDER input. */
void (*link_order_error_handler) (const char *, ...);
unsigned int);
/* Merge GNU properties. Return TRUE if property is updated. */
- bfd_boolean (*merge_gnu_properties) (struct bfd_link_info *, bfd *,
+ bfd_boolean (*merge_gnu_properties) (struct bfd_link_info *, bfd *, bfd *,
elf_property *, elf_property *);
/* Set up GNU properties. */
bfd *(*setup_gnu_properties) (struct bfd_link_info *);
+ /* Fix up GNU properties. */
+ void (*fixup_gnu_properties) (struct bfd_link_info *,
+ elf_property_list **);
+
/* Encoding used for compact EH tables. */
int (*compact_eh_encoding) (struct bfd_link_info *);
/* Opcode representing no unwind. */
int (*cant_unwind_opcode) (struct bfd_link_info *);
+ /* Called when emitting an ELF symbol whoes input version had an
+ ST_SHNDX field set to a value in the range SHN_LOPROC..SHN_HIOS.
+ Returns the value to be installed in the ST_SHNDX field of the
+ emitted symbol. If not defined, the value is left unchanged. */
+ unsigned int (*symbol_section_index) (bfd *, elf_symbol_type *);
+
+ /* Called when a section has extra reloc sections. */
+ bfd_boolean (*init_secondary_reloc_section) (bfd *, Elf_Internal_Shdr *,
+ const char *, unsigned int);
+
+ /* Called when after loading the normal relocs for a section. */
+ bfd_boolean (*slurp_secondary_relocs) (bfd *, asection *, asymbol **);
+
+ /* Called after writing the normal relocs for a section. */
+ bfd_boolean (*write_secondary_relocs) (bfd *, asection *);
+
/* This is non-zero if static TLS segments require a special alignment. */
unsigned static_tls_alignment;
#define elf_linked_to_section(sec) (elf_section_data(sec)->linked_to)
#define elf_section_type(sec) (elf_section_data(sec)->this_hdr.sh_type)
#define elf_section_flags(sec) (elf_section_data(sec)->this_hdr.sh_flags)
+#define elf_section_info(sec) (elf_section_data(sec)->this_hdr.sh_info)
#define elf_group_name(sec) (elf_section_data(sec)->group.name)
#define elf_group_id(sec) (elf_section_data(sec)->group.id)
#define elf_next_in_group(sec) (elf_section_data(sec)->next_in_group)
/* 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
- be no default (i.e. all values must be written to file, even zero). */
+ be no default (i.e. all values must be written to file, even zero), or
+ that the value is in error and should not be written to file. */
typedef struct obj_attribute
{
#define ATTR_TYPE_FLAG_INT_VAL (1 << 0)
#define ATTR_TYPE_FLAG_STR_VAL (1 << 1)
#define ATTR_TYPE_FLAG_NO_DEFAULT (1 << 2)
+#define ATTR_TYPE_FLAG_ERROR (1 << 3)
#define ATTR_TYPE_HAS_INT_VAL(TYPE) ((TYPE) & ATTR_TYPE_FLAG_INT_VAL)
#define ATTR_TYPE_HAS_STR_VAL(TYPE) ((TYPE) & ATTR_TYPE_FLAG_STR_VAL)
#define ATTR_TYPE_HAS_NO_DEFAULT(TYPE) ((TYPE) & ATTR_TYPE_FLAG_NO_DEFAULT)
+#define ATTR_TYPE_HAS_ERROR(TYPE) ((TYPE) & ATTR_TYPE_FLAG_ERROR)
int type;
unsigned int i;
/* Segment flags for the PT_GNU_STACK segment. */
unsigned int stack_flags;
- /* This is set to TRUE if the object was created by the backend
- linker. */
- bfd_boolean linker;
-
/* Used to determine if the e_flags field has been initialized */
bfd_boolean flags_init;
};
-/* Indicate if the bfd contains symbols that have the STT_GNU_IFUNC
- symbol type or STB_GNU_UNIQUE binding. Used to set the osabi
- field in the ELF header structure. */
-enum elf_gnu_symbols
+/* Indicate if the bfd contains SHF_GNU_MBIND sections or symbols that
+ have the STT_GNU_IFUNC symbol type or STB_GNU_UNIQUE binding. Used
+ to set the osabi field in the ELF header structure. */
+enum elf_gnu_osabi
{
- elf_gnu_symbol_none = 0,
- elf_gnu_symbol_any = 1 << 0,
- elf_gnu_symbol_ifunc = (elf_gnu_symbol_any | 1 << 1),
- elf_gnu_symbol_unique = (elf_gnu_symbol_any | 1 << 2),
- elf_gnu_symbol_all = (elf_gnu_symbol_ifunc | elf_gnu_symbol_unique)
+ elf_gnu_osabi_mbind = 1 << 0,
+ elf_gnu_osabi_ifunc = 1 << 1,
+ elf_gnu_osabi_unique = 1 << 2,
};
typedef struct elf_section_list
{
- Elf_Internal_Shdr hdr;
- unsigned int ndx;
+ Elf_Internal_Shdr hdr;
+ unsigned int ndx;
struct elf_section_list * next;
} elf_section_list;
+enum dynamic_lib_link_class {
+ DYN_NORMAL = 0,
+ DYN_AS_NEEDED = 1,
+ DYN_DT_NEEDED = 2,
+ DYN_NO_ADD_NEEDED = 4,
+ DYN_NO_NEEDED = 8
+};
+
/* Some private data is stashed away for future use using the tdata pointer
in the bfd structure. */
struct sdt_note *sdt_note_head;
Elf_Internal_Shdr **group_sect_ptr;
- int num_group;
+ unsigned int num_group;
+
+ /* Index into group_sect_ptr, updated by setup_group when finding a
+ section's group. Used to optimize subsequent group searches. */
+ unsigned int group_search_offset;
unsigned int symtab_section, dynsymtab_section;
unsigned int dynversym_section, dynverdef_section, dynverref_section;
or was found via a DT_NEEDED entry. */
ENUM_BITFIELD (dynamic_lib_link_class) dyn_lib_class : 4;
- /* Whether if the bfd contains symbols that have the STT_GNU_IFUNC
- symbol type or STB_GNU_UNIQUE binding. */
- ENUM_BITFIELD (elf_gnu_symbols) has_gnu_symbols : 3;
+ /* Whether the bfd uses OS specific bits that require ELFOSABI_GNU. */
+ ENUM_BITFIELD (elf_gnu_osabi) has_gnu_osabi : 3;
/* Whether if the bfd contains the GNU_PROPERTY_NO_COPY_ON_PROTECTED
property. */
#define elf_seg_map(bfd) (elf_tdata(bfd) -> o->seg_map)
#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_linker(bfd) (elf_tdata(bfd) -> o->linker)
#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)
extern Elf_Internal_Sym *bfd_elf_get_elf_syms
(bfd *, Elf_Internal_Shdr *, size_t, size_t, Elf_Internal_Sym *, void *,
Elf_External_Sym_Shndx *);
+extern char * bfd_elf_get_str_section (bfd *, unsigned int);
extern const char *bfd_elf_sym_name
(bfd *, Elf_Internal_Shdr *, Elf_Internal_Sym *, asection *);
extern bfd_boolean _bfd_elf_print_private_bfd_data
(bfd *, void *);
const char * _bfd_elf_get_symbol_version_string
- (bfd *, asymbol *, bfd_boolean *);
+ (bfd *, asymbol *, bfd_boolean, bfd_boolean *);
extern void bfd_elf_print_symbol
(bfd *, void *, asymbol *, bfd_print_symbol_type);
struct elf_link_hash_entry *);
extern void _bfd_elf_link_hash_hide_symbol
(struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean);
+extern void _bfd_elf_link_hide_symbol
+ (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *);
extern bfd_boolean _bfd_elf_link_hash_fixup_symbol
(struct bfd_link_info *, struct elf_link_hash_entry *);
extern bfd_boolean _bfd_elf_link_hash_table_init
(bfd *, const asection *, bfd *, const asection *);
extern bfd_boolean bfd_elf_is_group_section
(bfd *, const struct bfd_section *);
+extern const char *bfd_elf_group_name
+ (bfd *, const struct bfd_section *);
extern bfd_boolean _bfd_elf_section_already_linked
(bfd *, asection *, struct bfd_link_info *);
extern void bfd_elf_set_group_contents
extern const struct bfd_elf_special_section *_bfd_elf_get_sec_type_attr
(bfd *, asection *);
+extern bfd_boolean _bfd_elf_link_hide_sym_by_version
+ (struct bfd_link_info *, struct elf_link_hash_entry *);
+
/* If the target doesn't have reloc handling written yet: */
-extern void _bfd_elf_no_info_to_howto
+extern bfd_boolean _bfd_elf_no_info_to_howto
(bfd *, arelent *, Elf_Internal_Rela *);
extern bfd_boolean bfd_section_from_shdr
(struct elf_strtab_hash *, void *);
extern bfd_size_type _bfd_elf_strtab_size
(struct elf_strtab_hash *);
+extern bfd_size_type _bfd_elf_strtab_len
+ (struct elf_strtab_hash *);
extern bfd_size_type _bfd_elf_strtab_offset
(struct elf_strtab_hash *, size_t);
+extern const char * _bfd_elf_strtab_str
+ (struct elf_strtab_hash *, size_t idx, bfd_size_type *offset);
extern bfd_boolean _bfd_elf_strtab_emit
(bfd *, struct elf_strtab_hash *);
extern void _bfd_elf_strtab_finalize
(bfd *, struct bfd_link_info *);
extern file_ptr _bfd_elf_assign_file_position_for_section
(Elf_Internal_Shdr *, file_ptr, bfd_boolean);
+extern bfd_boolean _bfd_elf_modify_headers
+ (bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_elf_validate_reloc
(bfd *, arelent *);
+extern bfd_boolean bfd_elf_record_link_assignment
+ (bfd *, struct bfd_link_info *, const char *, bfd_boolean,
+ bfd_boolean);
+extern bfd_boolean bfd_elf_stack_segment_size (bfd *, struct bfd_link_info *,
+ const char *, bfd_vma);
+extern bfd_boolean bfd_elf_size_dynamic_sections
+ (bfd *, const char *, const char *, const char *, const char *, const char *,
+ const char * const *, struct bfd_link_info *, struct bfd_section **);
+extern bfd_boolean bfd_elf_size_dynsym_hash_dynstr
+ (bfd *, struct bfd_link_info *);
+extern bfd_boolean bfd_elf_get_bfd_needed_list
+ (bfd *, struct bfd_link_needed_list **);
+extern struct bfd_link_needed_list *bfd_elf_get_needed_list
+ (bfd *, struct bfd_link_info *);
+extern void bfd_elf_set_dt_needed_name
+ (bfd *, const char *);
+extern const char *bfd_elf_get_dt_soname
+ (bfd *);
+extern void bfd_elf_set_dyn_lib_class
+ (bfd *, enum dynamic_lib_link_class);
+extern int bfd_elf_get_dyn_lib_class
+ (bfd *);
+extern struct bfd_link_needed_list *bfd_elf_get_runpath_list
+ (bfd *, struct bfd_link_info *);
+extern int bfd_elf_discard_info
+ (bfd *, struct bfd_link_info *);
+extern unsigned int _bfd_elf_default_action_discarded
+ (struct bfd_section *);
+extern struct bfd_section *_bfd_elf_tls_setup
+ (bfd *, struct bfd_link_info *);
+
extern bfd_boolean _bfd_elf_link_create_dynamic_sections
(bfd *, struct bfd_link_info *);
-extern bfd_boolean _bfd_elf_link_omit_section_dynsym
+extern bfd_boolean _bfd_elf_omit_section_dynsym_default
+ (bfd *, struct bfd_link_info *, asection *);
+extern bfd_boolean _bfd_elf_omit_section_dynsym_all
(bfd *, struct bfd_link_info *, asection *);
extern bfd_boolean _bfd_elf_create_dynamic_sections
(bfd *, struct bfd_link_info *);
extern struct bfd_link_hash_entry *bfd_elf_define_start_stop
(struct bfd_link_info *, const char *, asection *);
-extern void _bfd_elf_post_process_headers (bfd * , struct bfd_link_info *);
+extern bfd_boolean _bfd_elf_init_file_header (bfd *, struct bfd_link_info *);
-extern const bfd_target *bfd_elf32_object_p
+extern bfd_boolean _bfd_elf_final_write_processing (bfd *);
+
+extern bfd_cleanup bfd_elf32_object_p
(bfd *);
-extern const bfd_target *bfd_elf32_core_file_p
+extern bfd_cleanup bfd_elf32_core_file_p
(bfd *);
extern char *bfd_elf32_core_file_failing_command
(bfd *);
(bfd *, bfd *);
extern int bfd_elf32_core_file_pid
(bfd *);
+extern bfd_boolean _bfd_elf32_core_find_build_id
+ (bfd *, bfd_vma);
extern bfd_boolean bfd_elf32_swap_symbol_in
(bfd *, const void *, const void *, Elf_Internal_Sym *);
extern bfd_boolean bfd_elf32_slurp_reloc_table
(bfd *, asection *, asymbol **, bfd_boolean);
-extern const bfd_target *bfd_elf64_object_p
+extern bfd_cleanup bfd_elf64_object_p
(bfd *);
-extern const bfd_target *bfd_elf64_core_file_p
+extern bfd_cleanup bfd_elf64_core_file_p
(bfd *);
extern char *bfd_elf64_core_file_failing_command
(bfd *);
(bfd *, bfd *);
extern int bfd_elf64_core_file_pid
(bfd *);
+extern bfd_boolean _bfd_elf64_core_find_build_id
+ (bfd *, bfd_vma);
extern bfd_boolean bfd_elf64_swap_symbol_in
(bfd *, const void *, const void *, Elf_Internal_Sym *);
(bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_elf_add_dynamic_entry
(struct bfd_link_info *, bfd_vma, bfd_vma);
+extern bfd_boolean _bfd_elf_strip_zero_sized_dynamic_sections
+ (struct bfd_link_info *);
+extern int bfd_elf_add_dt_needed_tag
+ (bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_elf_link_check_relocs
(bfd *, struct bfd_link_info *);
/* PowerPC elf_object_p tweak. */
extern bfd_boolean _bfd_elf_ppc_set_arch (bfd *);
/* PowerPC .gnu.attributes handling common to both 32-bit and 64-bit. */
-extern void _bfd_elf_ppc_merge_fp_attributes (bfd *, struct bfd_link_info *);
+extern bfd_boolean _bfd_elf_ppc_merge_fp_attributes
+ (bfd *, struct bfd_link_info *);
+
+/* Return an upper bound on the number of bytes required to store a
+ copy of ABFD's program header table entries. Return -1 if an error
+ occurs; bfd_get_error will return an appropriate code. */
+extern long bfd_get_elf_phdr_upper_bound
+ (bfd *abfd);
+
+/* Copy ABFD's program header table entries to *PHDRS. The entries
+ will be stored as an array of Elf_Internal_Phdr structures, as
+ defined in include/elf/internal.h. To find out how large the
+ buffer needs to be, call bfd_get_elf_phdr_upper_bound.
+
+ Return the number of program header table entries read, or -1 if an
+ error occurs; bfd_get_error will return an appropriate code. */
+extern int bfd_get_elf_phdrs
+ (bfd *abfd, void *phdrs);
/* Exported interface for writing elf corefile notes. */
extern char *elfcore_write_note
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_ppc_vsx
(bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tar
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_ppr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_dscr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_ebb
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_pmu
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cgpr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cfpr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cvmx
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cvsx
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_spr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_ctar
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cppr
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_ppc_tm_cdscr
+ (bfd *, char *, int *, const void *, int);
extern char *elfcore_write_s390_timer
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_s390_todcmp
(bfd *, char *, int *, const void *, int);
extern char *elfcore_write_aarch_hw_watch
(bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_aarch_sve
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_aarch_pauth
+ (bfd *, char *, int *, const void *, int);
+extern char *elfcore_write_arc_v2
+ (bfd *, char *, int *, const void *, int);
extern char *elfcore_write_lwpstatus
(bfd *, char *, int *, long, int, const void *);
extern char *elfcore_write_register_note
extern bfd_boolean _bfd_elf_merge_unknown_attribute_low (bfd *, bfd *, int);
extern bfd_boolean _bfd_elf_merge_unknown_attribute_list (bfd *, bfd *);
extern Elf_Internal_Shdr *_bfd_elf_single_rel_hdr (asection *sec);
+extern bfd_boolean elf_read_notes (bfd *, file_ptr, bfd_size_type, size_t);
extern bfd_boolean _bfd_elf_parse_gnu_properties
(bfd *, Elf_Internal_Note *);
(bfd *, unsigned int, unsigned int);
extern bfd *_bfd_elf_link_setup_gnu_properties
(struct bfd_link_info *);
+extern bfd_size_type _bfd_elf_convert_gnu_property_size
+ (bfd *, bfd *);
+extern bfd_boolean _bfd_elf_convert_gnu_properties
+ (bfd *, asection *, bfd *, bfd_byte **, bfd_size_type *);
/* The linker may need to keep track of the number of relocs that it
decides to copy as dynamic relocs in check_relocs for each symbol.
extern bfd_vma elf32_r_info (bfd_vma, bfd_vma);
extern bfd_vma elf32_r_sym (bfd_vma);
+extern bfd_boolean is_debuginfo_file (bfd *);
+
+
+extern bfd_boolean _bfd_elf_init_secondary_reloc_section
+ (bfd *, Elf_Internal_Shdr *, const char *, unsigned int);
+extern bfd_boolean _bfd_elf_slurp_secondary_reloc_section
+ (bfd *, asection *, asymbol **);
+extern bfd_boolean _bfd_elf_copy_special_section_fields
+ (const bfd *, bfd *, const Elf_Internal_Shdr *, Elf_Internal_Shdr *);
+extern bfd_boolean _bfd_elf_write_secondary_reloc_section
+ (bfd *, asection *);
+extern unsigned int _bfd_elf_symbol_section_index
+ (bfd *, elf_symbol_type *);
+
+extern asection *_bfd_elf_readonly_dynrelocs
+ (struct elf_link_hash_entry *);
+extern bfd_boolean _bfd_elf_maybe_set_textrel
+ (struct elf_link_hash_entry *, void *);
+
/* Large common section. */
extern asection _bfd_elf_large_com_section;
/* Hash for local symbol with the first section id, ID, in the input
file and the local symbol index, SYM. */
#define ELF_LOCAL_SYMBOL_HASH(ID, SYM) \
- (((((ID) & 0xff) << 24) | (((ID) & 0xff00) << 8)) \
- ^ (SYM) ^ ((ID) >> 16))
+ (((((ID) & 0xffU) << 24) | (((ID) & 0xff00) << 8)) \
+ ^ (SYM) ^ (((ID) & 0xffff0000U) >> 16))
/* This is the condition under which finish_dynamic_symbol will be called.
If our finish_dynamic_symbol isn't called, we'll need to do something
else if (!bfd_link_relocatable (info)) \
{ \
bfd_boolean err; \
- err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR \
- || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT); \
+ err = (info->unresolved_syms_in_objects == RM_DIAGNOSE && \
+ !info->warn_unresolved_syms) \
+ || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT; \
(*info->callbacks->undefined_symbol) (info, \
h->root.root.string, \
input_bfd, \
{ \
int i_; \
_bfd_clear_contents (howto, input_bfd, input_section, \
- contents + rel[index].r_offset); \
+ contents, rel[index].r_offset); \
\
if (bfd_link_relocatable (info) \
&& (input_section->flags & SEC_DEBUGGING)) \
|| (H)->start_stop \
|| ((INFO)->dynamic && !(H)->dynamic)))
+/* Determine if a section contains CTF data, using its name. */
+static inline bfd_boolean
+bfd_section_is_ctf (const asection *sec)
+{
+ const char *name = bfd_section_name (sec);
+ return strncmp (name, ".ctf", 4) == 0 && (name[4] == 0 || name[4] == '.');
+}
+
#ifdef __cplusplus
}
#endif
projects / deliverable / binutils-gdb.git / blobdiff