/* Symbol size. */
bfd_size_type size;
- /* Symbol alignment (common symbols only). */
- bfd_size_type align;
-
/* Symbol index as a dynamic symbol. Initialized to -1, and remains
-1 if this is not a dynamic symbol. */
long dynindx;
one. Otherwise it is NULL. */
struct elf_link_hash_entry *weakdef;
+ /* If this symbol requires an entry in the global offset table, the
+ processor specific backend uses this field to hold the offset
+ into the .got section. If this field is -1, then the symbol does
+ not require a global offset table entry. */
+ bfd_vma got_offset;
+
+ /* If this symbol requires an entry in the procedure linkage table,
+ the processor specific backend uses these two fields to hold the
+ offset into the procedure linkage section and the offset into the
+ .got section. If plt_offset is -1, then the symbol does not
+ require an entry in the procedure linkage table. */
+ bfd_vma plt_offset;
+
/* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */
char type;
#define ELF_LINK_HASH_REF_DYNAMIC 04
/* Symbol is defined by a shared object. */
#define ELF_LINK_HASH_DEF_DYNAMIC 010
- /* Symbol is referenced by two or more shared objects. */
-#define ELF_LINK_HASH_REF_DYNAMIC_MULTIPLE 020
- /* Symbol is defined by two or more shared objects. */
-#define ELF_LINK_HASH_DEF_DYNAMIC_MULTIPLE 040
/* Dynamic symbol has been adjustd. */
-#define ELF_LINK_HASH_DYNAMIC_ADJUSTED 0100
+#define ELF_LINK_HASH_DYNAMIC_ADJUSTED 020
+ /* Symbol is defined as weak. */
+#define ELF_LINK_HASH_DEFINED_WEAK 040
+ /* Symbol needs a copy reloc. */
+#define ELF_LINK_HASH_NEEDS_COPY 0100
};
/* ELF linker hash table. */
const Elf_Internal_Sym *, const char **name,
flagword *flags, asection **sec, bfd_vma *value));
+ /* If this field is not NULL, it is called by the elf_link_output_sym
+ phase of a link for each symbol which will appear in the object file. */
+ boolean (*elf_backend_link_output_symbol_hook)
+ PARAMS ((bfd *, struct bfd_link_info *info, const char *,
+ Elf_Internal_Sym *, asection *));
+
/* The CREATE_DYNAMIC_SECTIONS function is called by the ELF backend
linker the first time it encounters a dynamic object in the link.
This function must create any sections required for dynamic
boolean (*elf_backend_create_dynamic_sections)
PARAMS ((bfd *abfd, struct bfd_link_info *info));
+ /* 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
+ relocs are always passed as Rela structures; if the section
+ actually uses Rel structures, the r_addend field will always be
+ zero. */
+ boolean (*check_relocs)
+ PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *o,
+ const Elf_Internal_Rela *relocs));
+
/* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend
linker for every symbol which is defined by a dynamic object and
referenced by a regular object. This is called after all the
PARAMS ((bfd *output_bfd, struct bfd_link_info *info,
bfd *input_bfd, asection *input_section, bfd_byte *contents,
Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms,
- asection **local_sections));
+ asection **local_sections, char *output_names));
/* The FINISH_DYNAMIC_SYMBOL function is called by the ELF backend
linker just before it writes a symbol out to the .dynsym section.
/* A function to do any beginning processing needed for the ELF file
before building the ELF headers and computing file positions. */
- void (*elf_backend_begin_write_processing) PARAMS ((bfd *));
+ void (*elf_backend_begin_write_processing)
+ PARAMS ((bfd *, struct bfd_link_info *));
/* A function to do any final processing needed for the ELF file
- before writing it out. */
- void (*elf_backend_final_write_processing) PARAMS ((bfd *));
+ 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)
+ PARAMS ((bfd *, boolean linker));
/* The swapping table to use when dealing with ECOFF information.
Used for the MIPS ELF .mdebug section. */
typedef struct elf_sym_extra Elf_Sym_Extra;
+/* Information stored for each BFD section in an ELF file. This
+ structure is allocated by elf_new_section_hook. */
+
struct bfd_elf_section_data {
+ /* The ELF header for this section. */
Elf_Internal_Shdr this_hdr;
+ /* The ELF header for the reloc section associated with this
+ section, if any. */
Elf_Internal_Shdr rel_hdr;
- int this_idx, rel_idx;
+ /* The ELF section number of this section. Only used for an output
+ file. */
+ int this_idx;
+ /* The ELF section number of the reloc section associated with this
+ section, if any. Only used for an output file. */
+ int rel_idx;
+ /* Used by the backend linker to store the symbol hash table entries
+ associated with relocs against global symbols. */
struct elf_link_hash_entry **rel_hashes;
+ /* A pointer to the swapped relocs. If the section uses REL relocs,
+ rather than RELA, all the r_addend fields will be zero. This
+ pointer may be NULL. It is used by the backend linker. */
+ Elf_Internal_Rela *relocs;
};
+
#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)
bfd_vma gp; /* The gp value (MIPS only, for now) */
int gp_size; /* The gp size (MIPS only, for now) */
+ /* This is set to true if the object was created by the backend
+ linker. */
+ boolean linker;
+
/* A mapping from external symbols to entries in the linker hash
table, used when linking. This is indexed by the symbol index
minus the sh_info field of the symbol table header. */
struct elf_link_hash_entry **sym_hashes;
+
+ /* A mapping from local symbols to offsets into the global offset
+ table, used when linking. This is indexed by the symbol index. */
+ bfd_vma *local_got_offsets;
+
+ /* The linker ELF emulation code needs to let the backend ELF linker
+ know what filename should be used for a dynamic object if the
+ dynamic object is found using a search. This field is used to
+ hold that information. */
+ const char *dt_needed_name;
+
+ /* 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
+ sh_info field in the symbol table header, and always read all the
+ symbols. */
+ boolean bad_symtab;
};
#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
#define elf_gp(bfd) (elf_tdata(bfd) -> gp)
#define elf_gp_size(bfd) (elf_tdata(bfd) -> gp_size)
#define elf_sym_hashes(bfd) (elf_tdata(bfd) -> sym_hashes)
+#define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got_offsets)
+#define elf_dt_needed_name(bfd) (elf_tdata(bfd) -> dt_needed_name)
+#define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab)
\f
extern char * elf_string_from_elf_section PARAMS ((bfd *, unsigned, unsigned));
extern char * elf_get_str_section PARAMS ((bfd *, unsigned));
+extern void bfd_elf_print_symbol PARAMS ((bfd *, PTR, asymbol *,
+ bfd_print_symbol_type));
+
+#define bfd_elf32_print_symbol bfd_elf_print_symbol
+#define bfd_elf64_print_symbol bfd_elf_print_symbol
#define bfd_elf32_mkobject bfd_elf_mkobject
#define bfd_elf64_mkobject bfd_elf_mkobject
#define elf_mkobject bfd_elf_mkobject
char **));
extern boolean bfd_elf_mkobject PARAMS ((bfd *));
extern Elf_Internal_Shdr *bfd_elf_find_section PARAMS ((bfd *, char *));
-
+extern boolean _bfd_elf_make_section_from_shdr
+ PARAMS ((bfd *abfd, Elf_Internal_Shdr *hdr, const char *name));
+extern struct bfd_hash_entry *_bfd_elf_link_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
extern struct bfd_link_hash_table *_bfd_elf_link_hash_table_create
PARAMS ((bfd *));
+extern boolean _bfd_elf_link_hash_table_init
+ PARAMS ((struct elf_link_hash_table *, bfd *,
+ struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
+ struct bfd_hash_table *,
+ const 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 const bfd_target *bfd_elf32_object_p PARAMS ((bfd *));
+extern const 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 *,
extern long 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_bfd_final_link
PARAMS ((bfd *, struct bfd_link_info *));
+extern void bfd_elf32_swap_symbol_in
+ PARAMS ((bfd *, Elf32_External_Sym *, Elf_Internal_Sym *));
+extern void bfd_elf32_swap_symbol_out
+ PARAMS ((bfd *, Elf_Internal_Sym *, Elf32_External_Sym *));
extern void bfd_elf32_swap_reloc_in
PARAMS ((bfd *, Elf32_External_Rel *, Elf_Internal_Rel *));
extern void bfd_elf32_swap_reloc_out
PARAMS ((bfd *, const Elf_Internal_Dyn *, Elf32_External_Dyn *));
extern boolean bfd_elf32_add_dynamic_entry
PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma));
+extern boolean bfd_elf32_link_create_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+extern boolean bfd_elf32_link_record_dynamic_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
/* 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 const bfd_target *bfd_elf64_object_p PARAMS ((bfd *));
+extern const 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 *,
extern long 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_bfd_final_link
PARAMS ((bfd *, struct bfd_link_info *));
+extern void bfd_elf64_swap_symbol_in
+ PARAMS ((bfd *, Elf64_External_Sym *, Elf_Internal_Sym *));
+extern void bfd_elf64_swap_symbol_out
+ PARAMS ((bfd *, Elf_Internal_Sym *, Elf64_External_Sym *));
extern void bfd_elf64_swap_reloc_in
PARAMS ((bfd *, Elf64_External_Rel *, Elf_Internal_Rel *));
extern void bfd_elf64_swap_reloc_out
PARAMS ((bfd *, const Elf_Internal_Dyn *, Elf64_External_Dyn *));
extern boolean bfd_elf64_add_dynamic_entry
PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma));
+extern boolean bfd_elf64_link_create_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+extern boolean bfd_elf64_link_record_dynamic_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
/* If the target doesn't have reloc handling written yet: */
extern void bfd_elf64_no_info_to_howto PARAMS ((bfd *, arelent *,
projects / deliverable / binutils-gdb.git / blobdiff