#define ELF_LINK_DYNAMIC_DEF 020000
/* Symbol is weak in all shared objects. */
#define ELF_LINK_DYNAMIC_WEAK 040000
+ /* Symbol is referenced with a relocation where C/C++ pointer equality
+ matters. */
+#define ELF_LINK_POINTER_EQUALITY_NEEDED 0100000
};
/* Will references to this symbol always reference the symbol
bfd_boolean table;
};
-/* Cached start, size and alignment of PT_TLS segment. */
-struct elf_link_tls_segment
-{
- bfd_vma start;
- bfd_size_type size;
- unsigned int align;
-};
-
/* ELF linker hash table. */
struct elf_link_hash_table
objects included in the link. */
struct bfd_link_needed_list *runpath;
- /* Cached start, size and alignment of PT_TLS segment. */
- struct elf_link_tls_segment *tls_segment;
+ /* Cached first output tls section and size of PT_TLS segment. */
+ asection *tls_sec;
+ bfd_size_type tls_size;
/* A linked list of BFD's loaded in the link. */
struct elf_link_loaded_list *loaded;
#define elf_hash_table(p) ((struct elf_link_hash_table *) ((p)->hash))
/* Returns TRUE if the hash table is a struct elf_link_hash_table. */
-#define is_elf_hash_table(p) \
- ((p)->hash->type == bfd_link_elf_hash_table)
+#define is_elf_hash_table(htab) \
+ (((struct bfd_link_hash_table *) (htab))->type == bfd_link_elf_hash_table)
/* Used by bfd_section_from_r_symndx to cache a small number of local
symbol to section mappings. */
struct bfd_elf_special_section
{
const char *prefix;
- size_t prefix_length;
- const char *suffix;
- size_t suffix_length;
+ int prefix_length;
+ /* 0 means name must match PREFIX exactly.
+ -1 means name must start with PREFIX followed by an arbitrary string.
+ -2 means name must match PREFIX exactly or consist of PREFIX followed
+ by a dot then anything.
+ > 0 means name must start with the first PREFIX_LENGTH chars of
+ PREFIX and finish with the last SUFFIX_LENGTH chars of PREFIX. */
+ int suffix_length;
int type;
- int attributes;
+ int attr;
};
struct elf_backend_data
int (*elf_backend_get_symbol_type)
(Elf_Internal_Sym *, int);
+ /* Return true if local section symbols should have a non-null st_name.
+ NULL implies false. */
+ bfd_boolean (*elf_backend_name_local_section_symbols)
+ (bfd *);
+
/* A function to do additional processing on the ELF section header
just before writing it out. This is used to set the flags and
type fields for some sections, or to actually write out data for
/* 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. */
bfd_boolean (*elf_backend_link_output_symbol_hook)
- (bfd *, struct bfd_link_info *info, const char *, Elf_Internal_Sym *,
- asection *);
+ (struct bfd_link_info *info, const char *, Elf_Internal_Sym *,
+ asection *, struct elf_link_hash_entry *);
/* 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 is called to modify an existing segment map in a
backend specific fashion. */
bfd_boolean (*elf_backend_modify_segment_map)
- (bfd *);
+ (bfd *, struct bfd_link_info *);
/* This function is called during section gc to discover the section a
particular relocation refers to. */
(bfd *, void *, asymbol *);
/* This function, if defined, is called after all local symbols and
- global symbols converted to locals are emited into the symtab
+ global symbols converted to locals are emitted into the symtab
section. It allows the backend to emit special global symbols
not handled in the hash table. */
bfd_boolean (*elf_backend_output_arch_syms)
(bfd *, struct bfd_link_info *, void *,
- bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *));
+ bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *,
+ struct elf_link_hash_entry *));
/* Copy any information related to dynamic linking from a pre-existing
symbol to a newly created symbol. Also called to copy flags and
void (*elf_backend_hide_symbol)
(struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean);
+ /* Merge the backend specific symbol attribute. */
+ void (*elf_backend_merge_symbol_attribute)
+ (struct elf_link_hash_entry *, const Elf_Internal_Sym *, bfd_boolean,
+ bfd_boolean);
+
/* Emit relocations. Overrides default routine for emitting relocs,
except during a relocatable link, or if all relocs are being emitted. */
bfd_boolean (*elf_backend_emit_relocs)
bfd_boolean (*elf_backend_ignore_discarded_relocs)
(asection *);
+ /* These functions tell elf-eh-frame whether to attempt to turn
+ absolute or lsda encodings into pc-relative ones. The default
+ definition enables these transformations. */
+ bfd_boolean (*elf_backend_can_make_relative_eh_frame)
+ (bfd *, struct bfd_link_info *, asection *);
+ bfd_boolean (*elf_backend_can_make_lsda_relative_eh_frame)
+ (bfd *, struct bfd_link_info *, asection *);
+
+ /* This function returns an encoding after computing the encoded
+ value (and storing it in ENCODED) for the given OFFSET into OSEC,
+ to be stored in at LOC_OFFSET into the LOC_SEC input section.
+ The default definition chooses a 32-bit PC-relative encoding. */
+ bfd_byte (*elf_backend_encode_eh_address)
+ (bfd *abfd, struct bfd_link_info *info,
+ asection *osec, bfd_vma offset,
+ asection *loc_sec, bfd_vma loc_offset,
+ bfd_vma *encoded);
+
/* This function, if defined, may write out the given section.
Returns TRUE if it did so and FALSE if the caller should. */
bfd_boolean (*elf_backend_write_section)
.got section */
bfd_vma got_symbol_offset;
- /* The size in bytes of the headers for the GOT and PLT. This includes
- the so-called reserved entries on some systems. */
+ /* The size in bytes of the header for the GOT. This includes the
+ so-called reserved entries on some systems. */
bfd_vma got_header_size;
- bfd_vma plt_header_size;
/* This is TRUE if the linker should act like collect and gather
global constructors and destructors by name. This is TRUE for
const char *name;
/* Group signature sym, if this is the SHT_GROUP section. */
- struct symbol_cache_entry *id;
+ struct bfd_symbol *id;
} group;
/* A linked list of sections in the group. Circular when used by
extern void _bfd_elf_fprintf_vma
(bfd *, void *, bfd_vma);
+extern bfd_byte _bfd_elf_encode_eh_address
+ (bfd *abfd, struct bfd_link_info *info, asection *osec, bfd_vma offset,
+ asection *loc_sec, bfd_vma loc_offset, bfd_vma *encoded);
+extern bfd_boolean _bfd_elf_can_make_relative
+ (bfd *input_bfd, struct bfd_link_info *info, asection *eh_frame_section);
+
extern enum elf_reloc_type_class _bfd_elf_reloc_type_class
(const Elf_Internal_Rela *);
extern bfd_vma _bfd_elf_rela_local_sym
- (bfd *, Elf_Internal_Sym *, asection *, Elf_Internal_Rela *);
+ (bfd *, Elf_Internal_Sym *, asection **, Elf_Internal_Rela *);
extern bfd_vma _bfd_elf_rel_local_sym
(bfd *, Elf_Internal_Sym *, asection **, bfd_vma);
extern bfd_vma _bfd_elf_section_offset
extern bfd_boolean _bfd_elf_merge_sections
(bfd *, struct bfd_link_info *);
extern bfd_boolean bfd_elf_discard_group
- (bfd *, struct sec *);
+ (bfd *, struct bfd_section *);
extern void bfd_elf_set_group_contents
(bfd *, asection *, void *);
extern void _bfd_elf_link_just_syms
extern bfd_boolean _bfd_elf_write_corefile_contents
(bfd *);
extern bfd_boolean _bfd_elf_set_section_contents
- (bfd *, sec_ptr, void *, file_ptr, bfd_size_type);
+ (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type);
extern long _bfd_elf_get_symtab_upper_bound
(bfd *);
-extern long _bfd_elf_get_symtab
+extern long _bfd_elf_canonicalize_symtab
(bfd *, asymbol **);
extern long _bfd_elf_get_dynamic_symtab_upper_bound
(bfd *);
(bfd *, asection *);
extern bfd_boolean _bfd_elf_init_reloc_shdr
(bfd *, Elf_Internal_Shdr *, asection *, bfd_boolean);
-extern bfd_boolean _bfd_elf_get_sec_type_attr
- (bfd *, const char *, int *, int *);
+extern const struct bfd_elf_special_section *_bfd_elf_get_sec_type_attr
+ (bfd *, const char *);
/* If the target doesn't have reloc handling written yet: */
extern void _bfd_elf_no_info_to_howto
extern bfd_boolean _bfd_elf_close_and_cleanup
(bfd *);
extern bfd_reloc_status_type _bfd_elf_rel_vtable_reloc_fn
- (bfd *, arelent *, struct symbol_cache_entry *, void *,
+ (bfd *, arelent *, struct bfd_symbol *, void *,
asection *, bfd *, char **);
extern bfd_boolean _bfd_elf32_gc_sections
projects / deliverable / binutils-gdb.git / blobdiff