/* BFD back-end data structures for ELF files.
- Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 1999 Free Software
+ Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 1999, 2000 Free Software
Foundation, Inc.
Written by Cygnus Support.
/* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */
char type;
- /* Symbol st_other value. */
+ /* Symbol st_other value, symbol visibility. */
unsigned char other;
/* Hash value of the name computed using the ELF hash function. */
#define ELF_LINK_FORCED_LOCAL 02000
/* Symbol was marked during garbage collection. */
#define ELF_LINK_HASH_MARK 04000
+ /* 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
};
/* Records local symbols to be emitted in the dynamic symbol table. */
PTR stab_info;
/* A linked list of local symbols to be added to .dynsym. */
struct elf_link_local_dynamic_entry *dynlocal;
+ /* A linked list of DT_RPATH/DT_RUNPATH names found in dynamic
+ objects included in the link. */
+ struct bfd_link_needed_list *runpath;
};
/* Look up an entry in an ELF linker hash table. */
/* The maximum page size for this backend. */
bfd_vma maxpagesize;
- /* This is true if the linker should act like collect and gather
- global constructors and destructors by name. This is true for
- MIPS ELF because the Irix 5 tools can not handle the .init
- section. */
- boolean collect;
-
- /* This is true if the linker should ignore changes to the type of a
- symbol. This is true for MIPS ELF because some Irix 5 objects
- record undefined functions as STT_OBJECT although the definitions
- are STT_FUNC. */
- boolean type_change_ok;
-
/* A function to translate an ELF RELA relocation to a BFD arelent
structure. */
void (*elf_info_to_howto) PARAMS ((bfd *, arelent *,
/* A function to set the type of the info field. Processor-specific
types should be handled here. */
- int (*elf_backend_get_symbol_type) PARAMS (( Elf_Internal_Sym *, int));
-
+ int (*elf_backend_get_symbol_type) PARAMS (( Elf_Internal_Sym *, int));
+
/* 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
Elf32_Internal_Shdr *,
char *));
+ /* A function to convert machine dependent section header flags to
+ BFD internal section header flags. */
+ boolean (*elf_backend_section_flags) PARAMS ((flagword *,
+ Elf32_Internal_Shdr *));
+
+ /* A function to handle unusual program segment types when creating BFD
+ sections from ELF program segments. */
+ boolean (*elf_backend_section_from_phdr) PARAMS ((bfd *,
+ Elf32_Internal_Phdr *,
+ int));
+
/* 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
fields are set for unusual sections. */
boolean (*) PARAMS ((PTR, const char *,
Elf_Internal_Sym *, asection *))));
+ /* Copy any information related to dynamic linking from a pre-existing
+ symbol IND to a newly created symbol DIR. */
+ void (*elf_backend_copy_indirect_symbol)
+ PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *));
+
+ /* Modify any information related to dynamic linking such that the
+ symbol is not exported. */
+ void (*elf_backend_hide_symbol)
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
+
/* The swapping table to use when dealing with ECOFF information.
Used for the MIPS ELF .mdebug section. */
const struct ecoff_debug_swap *elf_backend_ecoff_debug_swap;
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
+ MIPS ELF because the Irix 5 tools can not handle the .init
+ section. */
+ unsigned collect : 1;
+
+ /* This is true if the linker should ignore changes to the type of a
+ symbol. This is true for MIPS ELF because some Irix 5 objects
+ record undefined functions as STT_OBJECT although the definitions
+ are STT_FUNC. */
+ unsigned type_change_ok : 1;
+
/* Whether the backend may use REL relocations. (Some backends use
both REL and RELA relocations, and this flag is set for those
backends.) */
unsigned may_use_rel_p : 1;
-
+
/* Whether the backend may use RELA relocations. (Some backends use
both REL and RELA relocations, and this flag is set for those
backends.) */
/* Whether the default relocation type is RELA. If a backend with
this flag set wants REL relocations for a particular section,
it must note that explicitly. Similarly, if this flag is clear,
- and the backend wants RELA relocations for a particular
- section. */
+ and the backend wants RELA relocations for a particular
+ section. */
unsigned default_use_rela_p : 1;
+ /* True if addresses "naturally" sign extend. This is used when
+ swapping in from Elf32 when BFD64. */
+ unsigned sign_extend_vma : 1;
+
unsigned want_got_plt : 1;
unsigned plt_readonly : 1;
unsigned want_plt_sym : 1;
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
struct dwarf1_debug *dwarf1_find_line_info;
/* A place to stash dwarf2 info for this bfd. */
- struct dwarf2_debug *dwarf2_find_line_info;
+ PTR dwarf2_find_line_info;
/* An array of stub sections indexed by symbol number, used by the
MIPS ELF linker. FIXME: We should figure out some way to only
/* Linker sections that we are interested in. */
struct elf_linker_section *linker_section[ (int)LINKER_SECTION_MAX ];
+
+ /* The Irix 5 support uses two virtual sections, which represent
+ text/data symbols defined in dynamic objects. */
+ asymbol *elf_data_symbol;
+ asymbol *elf_text_symbol;
+ asection *elf_data_section;
+ asection *elf_text_section;
};
#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
#define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got.offsets)
#define elf_local_ptr_offsets(bfd) (elf_tdata(bfd) -> linker_section_pointers)
#define elf_dt_name(bfd) (elf_tdata(bfd) -> dt_name)
+#define elf_dt_soname(bfd) (elf_tdata(bfd) -> dt_soname)
#define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab)
#define elf_flags_init(bfd) (elf_tdata(bfd) -> flags_init)
#define elf_linker_section(bfd,n) (elf_tdata(bfd) -> linker_section[(int)n])
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 boolean _bfd_elf_make_section_from_phdr
+ PARAMS ((bfd *abfd, Elf_Internal_Phdr *hdr, int index, const char *typename));
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 void _bfd_elf_link_hash_copy_indirect
+ PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *));
+extern void _bfd_elf_link_hash_hide_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
extern boolean _bfd_elf_link_hash_table_init
PARAMS ((struct elf_link_hash_table *, bfd *,
struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
unsigned long));
extern boolean _bfd_elf_find_nearest_line PARAMS ((bfd *, asection *,
asymbol **,
- bfd_vma, CONST char **,
- CONST char **,
+ bfd_vma, 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 PARAMS ((bfd *, boolean));
extern boolean _bfd_elf_new_section_hook PARAMS ((bfd *, asection *));
-extern boolean _bfd_elf_init_reloc_shdr
+extern boolean _bfd_elf_init_reloc_shdr
PARAMS ((bfd *, Elf_Internal_Shdr *, asection *, boolean));
/* If the target doesn't have reloc handling written yet: */
extern boolean bfd_elf32_write_shdrs_and_ehdr PARAMS ((bfd *));
extern int bfd_elf32_write_out_phdrs
PARAMS ((bfd *, const Elf_Internal_Phdr *, int));
+extern void bfd_elf32_write_relocs
+ PARAMS ((bfd *, asection *, PTR));
+extern boolean bfd_elf32_slurp_reloc_table
+ PARAMS ((bfd *, asection *, asymbol **, boolean));
extern boolean bfd_elf32_add_dynamic_entry
PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma));
extern boolean bfd_elf32_link_create_dynamic_sections
extern boolean bfd_elf64_write_shdrs_and_ehdr PARAMS ((bfd *));
extern int bfd_elf64_write_out_phdrs
PARAMS ((bfd *, const Elf_Internal_Phdr *, int));
+extern void bfd_elf64_write_relocs
+ PARAMS ((bfd *, asection *, PTR));
+extern boolean bfd_elf64_slurp_reloc_table
+ PARAMS ((bfd *, asection *, asymbol **, boolean));
extern boolean bfd_elf64_add_dynamic_entry
PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma));
extern boolean bfd_elf64_link_create_dynamic_sections
Elf_Internal_Sym *));
extern boolean _bfd_mips_elf_finish_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
-extern asection * _bfd_mips_elf_gc_mark_hook
+extern asection * _bfd_mips_elf_gc_mark_hook
PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
struct elf_link_hash_entry *, Elf_Internal_Sym *));
-extern boolean _bfd_mips_elf_gc_sweep_hook
- PARAMS ((bfd *, struct bfd_link_info *, asection *,
+extern boolean _bfd_mips_elf_gc_sweep_hook
+ PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
extern boolean _bfd_mips_elf_always_size_sections
PARAMS ((bfd *, struct bfd_link_info *));
const Elf_Internal_Rela *));
extern struct bfd_link_hash_table *_bfd_mips_elf_link_hash_table_create
PARAMS ((bfd *));
-extern boolean _bfd_mips_elf_print_private_bfd_data
+extern boolean _bfd_mips_elf_print_private_bfd_data
PARAMS ((bfd *, PTR));
extern boolean _bfd_mips_elf_link_output_symbol_hook
PARAMS ((bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *,
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
+/* SH ELF specific routine. */
+
+extern boolean _sh_elf_set_mach_from_flags PARAMS ((bfd *));
+
#endif /* _LIBELF_H_ */
projects / deliverable / binutils-gdb.git / blobdiff