/* BFD back-end data structures for ELF files.
Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
- 2002, 2003 Free Software Foundation, Inc.
+ 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _LIBELF_H_
#define _LIBELF_H_ 1
not visible outside this DSO. */
long dynindx;
- /* String table index in .dynstr if this is a dynamic symbol. */
- unsigned long dynstr_index;
-
- /* Hash value of the name computed using the ELF hash function. */
- unsigned long elf_hash_value;
-
- /* 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;
-
- /* Version information. */
- union
- {
- /* This field is used for a symbol which is not defined in a
- regular object. It points to the version information read in
- from the dynamic object. */
- Elf_Internal_Verdef *verdef;
- /* This field is used for a symbol which is defined in a regular
- object. It is set up in size_dynamic_sections. It points to
- the version information we should write out for this symbol. */
- struct bfd_elf_version_tree *vertree;
- } verinfo;
-
- /* Virtual table entry use information. This array is nominally of size
- size/sizeof(target_void_pointer), though we have to be able to assume
- and track a size while the symbol is still undefined. It is indexed
- via offset/sizeof(target_void_pointer). */
- size_t vtable_entries_size;
- bfd_boolean *vtable_entries_used;
-
- /* Virtual table derivation info. */
- struct elf_link_hash_entry *vtable_parent;
-
/* If this symbol requires an entry in the global offset table, the
processor specific backend uses this field to track usage and
final offset. Two schemes are supported: The first assumes that
bfd_size_type size;
/* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */
- char type;
+ unsigned int type : 8;
/* Symbol st_other value, symbol visibility. */
- unsigned char other;
+ unsigned int other : 8;
- /* Some flags; legal values follow. */
- unsigned short elf_link_hash_flags;
/* Symbol is referenced by a non-shared object. */
-#define ELF_LINK_HASH_REF_REGULAR 01
+ unsigned int ref_regular : 1;
/* Symbol is defined by a non-shared object. */
-#define ELF_LINK_HASH_DEF_REGULAR 02
+ unsigned int def_regular : 1;
/* Symbol is referenced by a shared object. */
-#define ELF_LINK_HASH_REF_DYNAMIC 04
+ unsigned int ref_dynamic : 1;
/* Symbol is defined by a shared object. */
-#define ELF_LINK_HASH_DEF_DYNAMIC 010
+ unsigned int def_dynamic : 1;
/* Symbol has a non-weak reference from a non-shared object. */
-#define ELF_LINK_HASH_REF_REGULAR_NONWEAK 020
+ unsigned int ref_regular_nonweak : 1;
/* Dynamic symbol has been adjustd. */
-#define ELF_LINK_HASH_DYNAMIC_ADJUSTED 040
+ unsigned int dynamic_adjusted : 1;
/* Symbol needs a copy reloc. */
-#define ELF_LINK_HASH_NEEDS_COPY 0100
+ unsigned int needs_copy : 1;
/* Symbol needs a procedure linkage table entry. */
-#define ELF_LINK_HASH_NEEDS_PLT 0200
+ unsigned int needs_plt : 1;
/* Symbol appears in a non-ELF input file. */
-#define ELF_LINK_NON_ELF 0400
+ unsigned int non_elf : 1;
/* Symbol should be marked as hidden in the version information. */
-#define ELF_LINK_HIDDEN 01000
+ unsigned int hidden : 1;
/* Symbol was forced to local scope due to a version script file. */
-#define ELF_LINK_FORCED_LOCAL 02000
+ unsigned int forced_local : 1;
/* Symbol was marked during garbage collection. */
-#define ELF_LINK_HASH_MARK 04000
+ unsigned int mark : 1;
/* Symbol is referenced by a non-GOT/non-PLT relocation. This is
not currently set by all the backends. */
-#define ELF_LINK_NON_GOT_REF 010000
- /* Symbol has a definition in a shared object. */
-#define ELF_LINK_DYNAMIC_DEF 020000
+ unsigned int non_got_ref : 1;
+ /* Symbol has a definition in a shared object.
+ FIXME: There is no real need for this field if def_dynamic is never
+ cleared and all places that test def_dynamic also test def_regular. */
+ unsigned int dynamic_def : 1;
/* Symbol is weak in all shared objects. */
-#define ELF_LINK_DYNAMIC_WEAK 040000
+ unsigned int dynamic_weak : 1;
+ /* Symbol is referenced with a relocation where C/C++ pointer equality
+ matters. */
+ unsigned int pointer_equality_needed : 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;
+
+ /* Hash value of the name computed using the ELF hash function.
+ Used part way through size_dynamic_sections, after we've finished
+ with weakdefs. */
+ unsigned long elf_hash_value;
+ } u;
+
+ /* Version information. */
+ union
+ {
+ /* This field is used for a symbol which is not defined in a
+ regular object. It points to the version information read in
+ from the dynamic object. */
+ Elf_Internal_Verdef *verdef;
+ /* This field is used for a symbol which is defined in a regular
+ object. It is set up in size_dynamic_sections. It points to
+ the version information we should write out for this symbol. */
+ struct bfd_elf_version_tree *vertree;
+ } verinfo;
+
+ struct
+ {
+ /* Virtual table entry use information. This array is nominally of size
+ size/sizeof(target_void_pointer), though we have to be able to assume
+ and track a size while the symbol is still undefined. It is indexed
+ via offset/sizeof(target_void_pointer). */
+ size_t size;
+ bfd_boolean *used;
+
+ /* Virtual table derivation info. */
+ struct elf_link_hash_entry *parent;
+ } *vtable;
};
/* Will references to this symbol always reference the symbol
#define SYMBOL_CALLS_LOCAL(INFO, H) \
_bfd_elf_symbol_refs_local_p (H, INFO, 1)
+/* Common symbols that are turned into definitions don't have the
+ DEF_REGULAR flag set, so they might appear to be undefined. */
+#define ELF_COMMON_DEF_P(H) \
+ (!(H)->def_regular \
+ && !(H)->def_dynamic \
+ && (H)->root.type == bfd_link_hash_defined)
+
/* Records local symbols to be emitted in the dynamic symbol table. */
struct elf_link_local_dynamic_entry
{
struct cie_header hdr;
unsigned char version;
- unsigned char augmentation[20];
- unsigned int code_align;
- int data_align;
- unsigned int ra_column;
- unsigned int augmentation_size;
+ char augmentation[20];
+ bfd_vma code_align;
+ bfd_signed_vma data_align;
+ bfd_vma ra_column;
+ bfd_vma augmentation_size;
struct elf_link_hash_entry *personality;
unsigned char per_encoding;
unsigned char lsda_encoding;
struct eh_cie_fde
{
- unsigned int offset;
+ /* For FDEs, this points to the CIE used. */
+ struct eh_cie_fde *cie_inf;
unsigned int size;
- asection *sec;
+ unsigned int offset;
unsigned int new_offset;
unsigned char fde_encoding;
unsigned char lsda_encoding;
unsigned char lsda_offset;
- unsigned char cie : 1;
- unsigned char removed : 1;
- unsigned char make_relative : 1;
- unsigned char make_lsda_relative : 1;
- unsigned char per_encoding_relative : 1;
+ unsigned int cie : 1;
+ unsigned int removed : 1;
+ unsigned int add_augmentation_size : 1;
+ unsigned int add_fde_encoding : 1;
+ unsigned int make_relative : 1;
+ unsigned int make_lsda_relative : 1;
+ unsigned int need_lsda_relative : 1;
+ unsigned int per_encoding_relative : 1;
};
struct eh_frame_sec_info
{
struct cie last_cie;
asection *last_cie_sec;
+ struct eh_cie_fde *last_cie_inf;
asection *hdr_sec;
- unsigned int last_cie_offset;
unsigned int fde_count, array_count;
struct eh_frame_array_ent *array;
/* TRUE if .eh_frame_hdr should contain the sorted search table.
We build it if we successfully read all .eh_frame input sections
and recognize them. */
bfd_boolean table;
+ bfd_boolean offsets_adjusted;
};
/* ELF linker hash table. */
/* The value to use when initialising got.refcount/offset and
plt.refcount/offset in an elf_link_hash_entry. Set to zero when
- the values are refcounts. Set to init_offset in
- size_dynamic_sections when the values may be offsets. */
- union gotplt_union init_refcount;
+ the values are refcounts. Set to init_got_offset/init_plt_offset
+ in size_dynamic_sections when the values may be offsets. */
+ union gotplt_union init_got_refcount;
+ union gotplt_union init_plt_refcount;
/* The value to use for got.refcount/offset and plt.refcount/offset
when the values may be offsets. Normally (bfd_vma) -1. */
- union gotplt_union init_offset;
+ union gotplt_union init_got_offset;
+ union gotplt_union init_plt_offset;
/* The number of symbols found in the link which must be put into
the .dynsym section. */
/* The _GLOBAL_OFFSET_TABLE_ symbol. */
struct elf_link_hash_entry *hgot;
- /* A pointer to information used to link stabs in sections. */
- void *stab_info;
-
/* A pointer to information used to merge SEC_MERGE sections. */
void *merge_info;
+ /* Used to link stabs in sections. */
+ struct stab_info stab_info;
+
/* Used by eh_frame code when editing .eh_frame. */
struct eh_frame_hdr_info eh_info;
/* A linked list of BFD's loaded in the link. */
struct elf_link_loaded_list *loaded;
+
+ /* True if this target has relocatable executables, so needs dynamic
+ section symbols. */
+ bfd_boolean is_relocatable_executable;
};
/* Look up an entry in an ELF linker hash table. */
#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. */
size_t locsymcount;
size_t extsymoff;
struct elf_link_hash_entry **sym_hashes;
+ int r_sym_shift;
bfd_boolean bad_symtab;
};
/* The maximum page size for this backend. */
bfd_vma maxpagesize;
+ /* The minimum page size for this backend. An input object will not be
+ considered page aligned unless its sections are correctly aligned for
+ pages at least this large. May be smaller than maxpagesize. */
+ bfd_vma minpagesize;
+
+ /* The BFD flags applied to sections created for dynamic linking. */
+ flagword dynamic_sec_flags;
+
/* A function to translate an ELF RELA relocation to a BFD arelent
structure. */
void (*elf_info_to_howto)
bfd_boolean (*elf_backend_symbol_table_processing)
(bfd *, elf_symbol_type *, unsigned int);
- /* A function to set the type of the info field. Processor-specific
+ /* A function to set the type of the info field. Processor-specific
types should be handled here. */
int (*elf_backend_get_symbol_type)
(Elf_Internal_Sym *, int);
+ /* A function to return the linker hash table entry of a symbol that
+ might be satisfied by an archive symbol. */
+ struct elf_link_hash_entry * (*elf_backend_archive_symbol_lookup)
+ (bfd *, struct bfd_link_info *, const char *);
+
+ /* 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
/* A function to handle unusual section types when creating BFD
sections from ELF sections. */
bfd_boolean (*elf_backend_section_from_shdr)
- (bfd *, Elf_Internal_Shdr *, const char *);
+ (bfd *, Elf_Internal_Shdr *, const char *, int);
- /* A function to convert machine dependent section header flags to
+ /* A function to convert machine dependent ELF section header flags to
BFD internal section header flags. */
bfd_boolean (*elf_backend_section_flags)
- (flagword *, Elf_Internal_Shdr *);
+ (flagword *, const Elf_Internal_Shdr *);
+
+ /* A function that returns a struct containing ELF section flags and
+ type for the given BFD section. */
+ const struct bfd_elf_special_section * (*get_sec_type_attr)
+ (bfd *, asection *);
/* A function to handle unusual program segment types when creating BFD
sections from ELF program segments. */
bfd_boolean (*elf_backend_section_from_phdr)
- (bfd *, Elf_Internal_Phdr *, int);
+ (bfd *, Elf_Internal_Phdr *, int, const char *);
/* A function to set up the ELF section header for a BFD section in
preparation for writing it out. This is where the flags and type
indices, and must set at least *FLAGS and *SEC for each processor
dependent case; failure to do so will cause a link error. */
bfd_boolean (*elf_add_symbol_hook)
- (bfd *abfd, struct bfd_link_info *info, const Elf_Internal_Sym *,
+ (bfd *abfd, struct bfd_link_info *info, 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. */
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.
bfd_boolean (*elf_backend_create_dynamic_sections)
(bfd *abfd, struct bfd_link_info *info);
+ /* When creating a shared library, determine whether to omit the
+ dynamic symbol for the section. */
+ bfd_boolean (*elf_backend_omit_section_dynsym)
+ (bfd *output_bfd, struct bfd_link_info *info, asection *osec);
+
/* 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
(bfd *abfd, struct bfd_link_info *info, asection *o,
const Elf_Internal_Rela *relocs);
+ /* 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
+ to any custom directives in the bfd. */
+ bfd_boolean (*check_directives)
+ (bfd *abfd, struct bfd_link_info *info);
+
/* 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
/* 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
/* 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 *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *);
+ (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *,
+ struct elf_link_hash_entry **);
/* Count relocations. Not called for relocatable links
or if all relocs are being preserved in the output. */
bfd_boolean (*elf_backend_ignore_discarded_relocs)
(asection *);
+ /* This function returns the width of FDE pointers in bytes, or 0 if
+ that can't be determined for some reason. The default definition
+ goes by the bfd's EI_CLASS. */
+ unsigned int (*elf_backend_eh_frame_address_size)
+ (bfd *, 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)
see elf.c, elfcode.h. */
bfd *(*elf_backend_bfd_from_remote_memory)
(bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep,
- int (*target_read_memory) (bfd_vma vma, char *myaddr, int len));
+ int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr, int len));
+
+ /* This function is used by `_bfd_elf_get_synthetic_symtab';
+ see elf.c. */
+ bfd_vma (*plt_sym_val) (bfd_vma, const asection *, const arelent *);
+
+ /* Used to handle bad SHF_LINK_ORDER input. */
+ bfd_error_handler_type link_order_error_handler;
+
+ /* Name of the PLT relocation section. */
+ const char *relplt_name;
/* Alternate EM_xxxx machine codes for this backend. */
int elf_machine_alt1;
const struct elf_size_info *s;
- /* An array of target specific special section map. */
+ /* An array of target specific special sections. */
const struct bfd_elf_special_section *special_sections;
- /* offset of the _GLOBAL_OFFSET_TABLE_ symbol from the start of the
- .got section */
- bfd_vma got_symbol_offset;
-
/* 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;
/* The number of relocations currently assigned to REL_HDR2. */
unsigned int rel_count2;
- /* The ELF section number of this section. Only used for an output
- file. */
+ /* The ELF section number of this section. */
int this_idx;
/* The ELF section number of the reloc section indicated by
no dynamic symbol for this section. */
int dynindx;
+ /* A pointer to the linked-to section for SHF_LINK_ORDER. */
+ asection *linked_to;
+
/* 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;
struct bfd_symbol *id;
} group;
+ /* Optional information about section group; NULL if it doesn't
+ belongs to any section group. */
+ asection *sec_group;
+
/* A linked list of sections in the group. Circular when used by
the linker. */
asection *next_in_group;
void *sec_info;
};
-#define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd)
+#define elf_section_data(sec) ((struct bfd_elf_section_data*)(sec)->used_by_bfd)
+#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_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)
+#define elf_sec_group(sec) (elf_section_data(sec)->sec_group)
/* Return TRUE if section has been discarded. */
#define elf_discarded_section(sec) \
(!bfd_is_abs_section (sec) \
&& bfd_is_abs_section ((sec)->output_section) \
- && sec->sec_info_type != ELF_INFO_TYPE_MERGE \
- && sec->sec_info_type != ELF_INFO_TYPE_JUST_SYMS)
+ && (sec)->sec_info_type != ELF_INFO_TYPE_MERGE \
+ && (sec)->sec_info_type != ELF_INFO_TYPE_JUST_SYMS)
#define get_elf_backend_data(abfd) \
((const struct elf_backend_data *) (abfd)->xvec->backend_data)
bfd_vma gp; /* The gp value */
unsigned int gp_size; /* The gp size */
- Elf_Internal_Shdr **group_sect_ptr;
- int num_group;
-
/* Information grabbed from an elf core file. */
int core_signal;
int core_pid;
char* core_program;
char* core_command;
- /* This is set to TRUE if the object was created by the backend
- linker. */
- bfd_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. */
one. */
const char *dt_name;
- /* When a reference in a regular object is resolved by a shared
- object is loaded into via the DT_NEEDED entries by the linker
- ELF emulation code, we need to add the shared object to the
- DT_NEEDED list of the resulting binary to indicate the dependency
- as if the -l option is passed to the linker. This field holds the
- name of the loaded shared object. */
- const char *dt_soname;
-
- /* 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. */
- bfd_boolean bad_symtab;
-
/* Records the result of `get_program_header_size'. */
bfd_size_type program_header_size;
created. */
asection *eh_frame_hdr;
- /* Used to determine if the e_flags field has been initialized */
- bfd_boolean flags_init;
+ Elf_Internal_Shdr **group_sect_ptr;
+ int num_group;
/* Number of symbol version definitions we are about to emit. */
unsigned int cverdefs;
unsigned int cverrefs;
/* Segment flags for the PT_GNU_STACK segment. */
- unsigned int stack_flags;
+ unsigned int stack_flags;
+
+ /* Should the PT_GNU_RELRO segment be emitted? */
+ bfd_boolean relro;
/* Symbol version definitions in external objects. */
Elf_Internal_Verdef *verdef;
asymbol *elf_text_symbol;
asection *elf_data_section;
asection *elf_text_section;
+
+ /* Whether a dyanmic object was specified normally on the linker
+ command line, or was specified when --as-needed was in effect,
+ or was found via a DT_NEEDED entry. */
+ enum dynamic_lib_link_class dyn_lib_class;
+
+ /* This is set to TRUE if the object was created by the backend
+ linker. */
+ bfd_boolean linker;
+
+ /* 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. */
+ bfd_boolean bad_symtab;
+
+ /* Used to determine if the e_flags field has been initialized */
+ bfd_boolean flags_init;
};
#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
#define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got.offsets)
#define elf_local_got_ents(bfd) (elf_tdata(bfd) -> local_got.ents)
#define elf_dt_name(bfd) (elf_tdata(bfd) -> dt_name)
-#define elf_dt_soname(bfd) (elf_tdata(bfd) -> dt_soname)
+#define elf_dyn_lib_class(bfd) (elf_tdata(bfd) -> dyn_lib_class)
#define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab)
#define elf_flags_init(bfd) (elf_tdata(bfd) -> flags_init)
\f
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 const char *bfd_elf_local_sym_name
- (bfd *, Elf_Internal_Sym *);
+extern const char *bfd_elf_sym_name
+ (bfd *, Elf_Internal_Shdr *, Elf_Internal_Sym *, asection *);
extern bfd_boolean _bfd_elf_copy_private_bfd_data
(bfd *, bfd *);
extern void bfd_elf_print_symbol
(bfd *, void *, asymbol *, bfd_print_symbol_type);
-#define elf_string_from_elf_strtab(abfd, strindex) \
- bfd_elf_string_from_elf_section (abfd, elf_elfheader(abfd)->e_shstrndx, \
- strindex)
-
-#define bfd_elf32_print_symbol bfd_elf_print_symbol
-#define bfd_elf64_print_symbol bfd_elf_print_symbol
-
extern void _bfd_elf_sprintf_vma
(bfd *, char *, bfd_vma);
extern void _bfd_elf_fprintf_vma
(bfd *, void *, bfd_vma);
+extern unsigned int _bfd_elf_eh_frame_address_size
+ (bfd *, asection *);
+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
extern Elf_Internal_Shdr *bfd_elf_find_section
(bfd *, char *);
extern bfd_boolean _bfd_elf_make_section_from_shdr
- (bfd *, Elf_Internal_Shdr *, const char *);
+ (bfd *, Elf_Internal_Shdr *, const char *, int);
extern bfd_boolean _bfd_elf_make_section_from_phdr
(bfd *, Elf_Internal_Phdr *, int, const char *);
extern struct bfd_hash_entry *_bfd_elf_link_hash_newfunc
struct bfd_hash_entry *(*)
(struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
extern bfd_boolean _bfd_elf_slurp_version_tables
- (bfd *);
+ (bfd *, bfd_boolean);
extern bfd_boolean _bfd_elf_merge_sections
(bfd *, struct bfd_link_info *);
-extern bfd_boolean bfd_elf_discard_group
+extern bfd_boolean bfd_elf_is_group_section
+ (bfd *, const struct bfd_section *);
+extern void _bfd_elf_section_already_linked
(bfd *, struct bfd_section *);
extern void bfd_elf_set_group_contents
(bfd *, asection *, void *);
+extern asection *_bfd_elf_check_kept_section
+ (asection *);
extern void _bfd_elf_link_just_syms
(asection *, struct bfd_link_info *);
+extern bfd_boolean _bfd_elf_copy_private_header_data
+ (bfd *, bfd *);
extern bfd_boolean _bfd_elf_copy_private_symbol_data
(bfd *, asymbol *, bfd *, asymbol *);
extern bfd_boolean _bfd_elf_copy_private_section_data
(bfd *);
extern long _bfd_elf_canonicalize_dynamic_symtab
(bfd *, asymbol **);
+extern long _bfd_elf_get_synthetic_symtab
+ (bfd *, long, asymbol **, long, asymbol **, asymbol **);
extern long _bfd_elf_get_reloc_upper_bound
(bfd *, sec_ptr);
extern long _bfd_elf_canonicalize_reloc
extern bfd_boolean _bfd_elf_find_nearest_line
(bfd *, asection *, asymbol **, bfd_vma, const char **, const char **,
unsigned int *);
+extern bfd_boolean _bfd_elf_find_line
+ (bfd *, asymbol **, asymbol *, const char **, unsigned int *);
+#define _bfd_generic_find_line _bfd_elf_find_line
+extern bfd_boolean _bfd_elf_find_inliner_info
+ (bfd *, const char **, const char **, unsigned int *);
#define _bfd_elf_read_minisymbols _bfd_generic_read_minisymbols
#define _bfd_elf_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
extern int _bfd_elf_sizeof_headers
(bfd *, asection *);
extern bfd_boolean _bfd_elf_init_reloc_shdr
(bfd *, Elf_Internal_Shdr *, asection *, bfd_boolean);
+extern const struct bfd_elf_special_section *_bfd_elf_get_special_section
+ (const char *, const struct bfd_elf_special_section *, unsigned int);
extern const struct bfd_elf_special_section *_bfd_elf_get_sec_type_attr
- (bfd *, const char *);
+ (bfd *, asection *);
/* If the target doesn't have reloc handling written yet: */
extern void _bfd_elf_no_info_to_howto
extern bfd_boolean _bfd_elf_discard_section_eh_frame_hdr
(bfd *, struct bfd_link_info *);
extern bfd_vma _bfd_elf_eh_frame_section_offset
- (bfd *, asection *, bfd_vma);
+ (bfd *, struct bfd_link_info *, asection *, bfd_vma);
extern bfd_boolean _bfd_elf_write_section_eh_frame
(bfd *, struct bfd_link_info *, asection *, bfd_byte *);
extern bfd_boolean _bfd_elf_write_section_eh_frame_hdr
extern bfd_boolean _bfd_elf_merge_symbol
(bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *,
- asection **, bfd_vma *, struct elf_link_hash_entry **, bfd_boolean *,
- bfd_boolean *, bfd_boolean *, bfd_boolean *, bfd_boolean);
+ asection **, bfd_vma *, unsigned int *,
+ struct elf_link_hash_entry **, bfd_boolean *,
+ bfd_boolean *, bfd_boolean *, bfd_boolean *);
extern bfd_boolean _bfd_elf_add_default_symbol
(bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
const char *, Elf_Internal_Sym *, asection **, bfd_vma *,
- bfd_boolean *, bfd_boolean, bfd_boolean);
+ bfd_boolean *, bfd_boolean);
extern bfd_boolean _bfd_elf_export_symbol
(struct elf_link_hash_entry *, void *);
extern bfd_boolean _bfd_elf_link_assign_sym_version
(struct elf_link_hash_entry *, void *);
-extern bfd_boolean _bfd_elf_link_record_dynamic_symbol
- (struct bfd_link_info *, struct elf_link_hash_entry *);
extern long _bfd_elf_link_lookup_local_dynindx
(struct bfd_link_info *, bfd *, long);
extern bfd_boolean _bfd_elf_compute_section_file_positions
extern bfd_boolean _bfd_elf_link_create_dynamic_sections
(bfd *, struct bfd_link_info *);
+extern bfd_boolean _bfd_elf_link_omit_section_dynsym
+ (bfd *, struct bfd_link_info *, asection *);
extern bfd_boolean _bfd_elf_create_dynamic_sections
(bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_elf_create_got_section
(bfd *, struct bfd_link_info *);
-extern unsigned long _bfd_elf_link_renumber_dynsyms
- (bfd *, struct bfd_link_info *);
extern bfd_boolean _bfd_elfcore_make_pseudosection
(bfd *, char *, size_t, ufile_ptr);
(bfd *, Elf_Internal_Shdr *, asection *);
extern bfd_boolean _bfd_elf_link_output_relocs
- (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *);
+ (bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *,
+ struct elf_link_hash_entry **);
extern bfd_boolean _bfd_elf_fix_symbol_flags
(struct elf_link_hash_entry *, struct elf_info_failed *);
extern bfd_boolean _bfd_elf_symbol_refs_local_p
(struct elf_link_hash_entry *, struct bfd_link_info *, bfd_boolean);
+extern bfd_boolean bfd_elf_match_symbols_in_sections
+ (asection *sec1, asection *sec2);
+
+extern bfd_boolean _bfd_elf_setup_group_pointers
+ (bfd *);
+
extern const bfd_target *bfd_elf32_object_p
(bfd *);
extern const bfd_target *bfd_elf32_core_file_p
extern bfd_boolean bfd_elf32_core_file_matches_executable_p
(bfd *, bfd *);
-extern bfd_boolean bfd_elf32_bfd_link_add_symbols
- (bfd *, struct bfd_link_info *);
-extern bfd_boolean bfd_elf32_bfd_final_link
- (bfd *, struct bfd_link_info *);
-
extern void bfd_elf32_swap_symbol_in
(bfd *, const void *, const void *, Elf_Internal_Sym *);
extern void bfd_elf32_swap_symbol_out
(bfd *, asection *, void *);
extern bfd_boolean bfd_elf32_slurp_reloc_table
(bfd *, asection *, asymbol **, bfd_boolean);
-extern bfd_boolean bfd_elf32_add_dynamic_entry
- (struct bfd_link_info *, bfd_vma, bfd_vma);
extern const bfd_target *bfd_elf64_object_p
(bfd *);
(bfd *);
extern bfd_boolean bfd_elf64_core_file_matches_executable_p
(bfd *, bfd *);
-extern bfd_boolean bfd_elf64_bfd_link_add_symbols
- (bfd *, struct bfd_link_info *);
-extern bfd_boolean bfd_elf64_bfd_final_link
- (bfd *, struct bfd_link_info *);
extern void bfd_elf64_swap_symbol_in
(bfd *, const void *, const void *, Elf_Internal_Sym *);
(bfd *, asection *, void *);
extern bfd_boolean bfd_elf64_slurp_reloc_table
(bfd *, asection *, asymbol **, bfd_boolean);
-extern bfd_boolean bfd_elf64_add_dynamic_entry
+
+extern struct elf_link_hash_entry *_bfd_elf_archive_symbol_lookup
+ (bfd *, struct bfd_link_info *, const char *);
+extern bfd_boolean bfd_elf_link_add_symbols
+ (bfd *, struct bfd_link_info *);
+extern bfd_boolean _bfd_elf_add_dynamic_entry
(struct bfd_link_info *, bfd_vma, bfd_vma);
-#define bfd_elf32_link_record_dynamic_symbol \
- _bfd_elf_link_record_dynamic_symbol
-#define bfd_elf64_link_record_dynamic_symbol \
- _bfd_elf_link_record_dynamic_symbol
+extern bfd_boolean bfd_elf_link_record_dynamic_symbol
+ (struct bfd_link_info *, struct elf_link_hash_entry *);
-extern int elf_link_record_local_dynamic_symbol
+extern int bfd_elf_link_record_local_dynamic_symbol
(struct bfd_link_info *, bfd *, long);
-#define _bfd_elf32_link_record_local_dynamic_symbol \
- elf_link_record_local_dynamic_symbol
-#define _bfd_elf64_link_record_local_dynamic_symbol \
- elf_link_record_local_dynamic_symbol
extern bfd_boolean _bfd_elf_close_and_cleanup
(bfd *);
+
+extern void _bfd_dwarf2_cleanup_debug_info
+ (bfd *);
+
extern bfd_reloc_status_type _bfd_elf_rel_vtable_reloc_fn
(bfd *, arelent *, struct bfd_symbol *, void *,
asection *, bfd *, char **);
-extern bfd_boolean _bfd_elf32_gc_sections
- (bfd *, struct bfd_link_info *);
-extern bfd_boolean _bfd_elf32_gc_common_finalize_got_offsets
+extern bfd_boolean bfd_elf_final_link
(bfd *, struct bfd_link_info *);
-extern bfd_boolean _bfd_elf32_gc_common_final_link
+
+extern bfd_boolean bfd_elf_gc_sections
(bfd *, struct bfd_link_info *);
-extern bfd_boolean _bfd_elf32_gc_record_vtinherit
+
+extern bfd_boolean bfd_elf_gc_record_vtinherit
(bfd *, asection *, struct elf_link_hash_entry *, bfd_vma);
-extern bfd_boolean _bfd_elf32_gc_record_vtentry
+
+extern bfd_boolean bfd_elf_gc_record_vtentry
(bfd *, asection *, struct elf_link_hash_entry *, bfd_vma);
-extern bfd_boolean _bfd_elf64_gc_sections
- (bfd *, struct bfd_link_info *);
-extern bfd_boolean _bfd_elf64_gc_common_finalize_got_offsets
+extern bfd_boolean _bfd_elf_gc_mark
+ (struct bfd_link_info *, asection *,
+ asection * (*) (asection *, struct bfd_link_info *, Elf_Internal_Rela *,
+ struct elf_link_hash_entry *, Elf_Internal_Sym *));
+
+extern bfd_boolean bfd_elf_gc_common_finalize_got_offsets
(bfd *, struct bfd_link_info *);
-extern bfd_boolean _bfd_elf64_gc_common_final_link
+
+extern bfd_boolean bfd_elf_gc_common_final_link
(bfd *, struct bfd_link_info *);
-extern bfd_boolean _bfd_elf64_gc_record_vtinherit
- (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma);
-extern bfd_boolean _bfd_elf64_gc_record_vtentry
- (bfd *, asection *, struct elf_link_hash_entry *, bfd_vma);
-extern bfd_boolean _bfd_elf32_reloc_symbol_deleted_p
- (bfd_vma, void *);
-extern bfd_boolean _bfd_elf64_reloc_symbol_deleted_p
+extern bfd_boolean bfd_elf_reloc_symbol_deleted_p
(bfd_vma, void *);
+extern struct elf_segment_map *
+_bfd_elf_make_dynamic_segment
+ (bfd *, asection *);
+
/* Exported interface for writing elf corefile notes. */
extern char *elfcore_write_note
(bfd *, char *, int *, const char *, int, const void *, int);
extern bfd *_bfd_elf32_bfd_from_remote_memory
(bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep,
- int (*target_read_memory) (bfd_vma, char *, int));
+ int (*target_read_memory) (bfd_vma, bfd_byte *, int));
extern bfd *_bfd_elf64_bfd_from_remote_memory
(bfd *templ, bfd_vma ehdr_vma, bfd_vma *loadbasep,
- int (*target_read_memory) (bfd_vma, char *, int));
+ int (*target_read_memory) (bfd_vma, bfd_byte *, int));
/* SH ELF specific routine. */
extern bfd_boolean _sh_elf_set_mach_from_flags
(bfd *);
+/* 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
+ about initializing any .plt and .got entries in relocate_section. */
+#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
+ ((DYN) \
+ && ((SHARED) || !(H)->forced_local) \
+ && ((H)->dynindx != -1 || (H)->forced_local))
+
/* This macro is to avoid lots of duplicated code in the body
of xxx_relocate_section() in the various elfxx-xxxx.c files. */
-#define RELOC_FOR_GLOBAL_SYMBOL(h, sym_hashes, r_symndx, symtab_hdr, relocation, sec, unresolved_reloc, info, warned) \
- do \
- { \
- /* It seems this can happen with erroneous or unsupported \
- input (mixing a.out and elf in an archive, for example.) */ \
- if (sym_hashes == NULL) \
- return FALSE; \
- \
- h = sym_hashes[r_symndx - symtab_hdr->sh_info]; \
- \
- while (h->root.type == bfd_link_hash_indirect \
- || h->root.type == bfd_link_hash_warning) \
- h = (struct elf_link_hash_entry *) h->root.u.i.link; \
- \
- warned = FALSE; \
- unresolved_reloc = FALSE; \
- relocation = 0; \
- if (h->root.type == bfd_link_hash_defined \
- || h->root.type == bfd_link_hash_defweak) \
- { \
- sec = h->root.u.def.section; \
- if (sec == NULL \
- || sec->output_section == NULL) \
- /* Set a flag that will be cleared later if we find a \
- relocation value for this symbol. output_section \
- is typically NULL for symbols satisfied by a shared \
- library. */ \
- unresolved_reloc = TRUE; \
- else \
- relocation = (h->root.u.def.value \
- + sec->output_section->vma \
- + sec->output_offset); \
- } \
- else if (h->root.type == bfd_link_hash_undefweak) \
- ; \
- else if (!info->executable \
- && info->unresolved_syms_in_objects == RM_IGNORE \
- && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) \
- ; \
- else \
- { \
- if (! info->callbacks->undefined_symbol \
- (info, h->root.root.string, input_bfd, \
- input_section, rel->r_offset, \
- ((info->shared && info->unresolved_syms_in_shared_libs == RM_GENERATE_ERROR) \
- || (!info->shared && info->unresolved_syms_in_objects == RM_GENERATE_ERROR) \
- || ELF_ST_VISIBILITY (h->other)) \
- )) \
- return FALSE; \
- warned = TRUE; \
- } \
- } \
+#define RELOC_FOR_GLOBAL_SYMBOL(info, input_bfd, input_section, rel, \
+ r_symndx, symtab_hdr, sym_hashes, \
+ h, sec, relocation, \
+ unresolved_reloc, warned) \
+ do \
+ { \
+ /* It seems this can happen with erroneous or unsupported \
+ input (mixing a.out and elf in an archive, for example.) */ \
+ if (sym_hashes == NULL) \
+ return FALSE; \
+ \
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info]; \
+ \
+ while (h->root.type == bfd_link_hash_indirect \
+ || h->root.type == bfd_link_hash_warning) \
+ h = (struct elf_link_hash_entry *) h->root.u.i.link; \
+ \
+ warned = FALSE; \
+ unresolved_reloc = FALSE; \
+ relocation = 0; \
+ if (h->root.type == bfd_link_hash_defined \
+ || h->root.type == bfd_link_hash_defweak) \
+ { \
+ sec = h->root.u.def.section; \
+ if (sec == NULL \
+ || sec->output_section == NULL) \
+ /* Set a flag that will be cleared later if we find a \
+ relocation value for this symbol. output_section \
+ is typically NULL for symbols satisfied by a shared \
+ library. */ \
+ unresolved_reloc = TRUE; \
+ else \
+ relocation = (h->root.u.def.value \
+ + sec->output_section->vma \
+ + sec->output_offset); \
+ } \
+ else if (h->root.type == bfd_link_hash_undefweak) \
+ ; \
+ else if (info->unresolved_syms_in_objects == RM_IGNORE \
+ && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) \
+ ; \
+ else \
+ { \
+ bfd_boolean err; \
+ err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR \
+ || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT); \
+ if (!info->callbacks->undefined_symbol (info, \
+ h->root.root.string, \
+ input_bfd, \
+ input_section, \
+ rel->r_offset, err)) \
+ return FALSE; \
+ warned = TRUE; \
+ } \
+ } \
while (0)
#endif /* _LIBELF_H_ */
projects / deliverable / binutils-gdb.git / blobdiff