* elf64-mips.c: Extensive additions to provide better support for
writing files and for gas. * elf32-mips.c (_bfd_mips_elf_object_p): New function, broken out of mips_elf_object_p. (mips_elf32_object_p): Rename from mips_elf_object_p; call _bfd_mips_elf_object_p. (_bfd_mips_elf_final_write_processing): Rename from mips_elf_final_write_processing and make globally visible. (_bfd_mips_elf_fake_sections): Rename from mips_elf_fake_sections and make globally visible. (_bfd_mips_elf_section_from_bfd_section): Rename from mips_elf_section_from_bfd_section and make globally visible. (_bfd_mips_elf_section_processing): New function, broken out of mips_elf_section_processing. (mips_elf32_section_processing): Rename from mips_elf_section_processing; call _bfd_mips_elf_section_processing. (_bfd_mips_elf_symbol_processing): Rename from mips_elf_symbol_processing and make globally visible. (_bfd_mips_elf_read_ecoff_info): Rename from mips_elf_read_ecoff_info and make globally visible. (mips_elf32_ecoff_debug_swap): Rename from mips_elf_ecoff_debug_swap. * elf.c (_bfd_elf_symbol_from_bfd_symbol): Use asymbol rather than struct symbol_cache_entry. (_bfd_elf_validate_reloc): New function, moved in from elfcode.h:validate_reloc. * elfcode.h (validate_reloc): Remove; moved into elf.c and renamed to _bfd_elf_validate_reloc. Change all callers. * elf-bfd.h (bfd_section_from_shdr): Declare. (_bfd_elf_symbol_from_bfd_symbol): Declare. (_bfd_elf_validate_reloc): Declare. (_bfd_mips_elf_object_p): Declare. (_bfd_mips_elf_fake_sections): Declare. (_bfd_mips_elf_section_from_bfd_section): Declare. (_bfd_mips_elf_section_processing): Declare. (_bfd_mips_elf_symbol_processing): Declare. (_bfd_mips_elf_read_ecoff_info): Declare. (_bfd_mips_elf_final_write_processing): Declare. * elfxx-target.h (bfd_elfNN_get_reloc_upper_bound): Don't define if already defined.
This commit is contained in:
Ian Lance Taylor
parent
d0e1c80348
commit
0017655509
4 changed files with 431 additions and 73 deletions
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@ -1,5 +1,47 @@
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Thu May 30 12:38:49 1996 Ian Lance Taylor <ian@cygnus.com>
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* elf64-mips.c: Extensive additions to provide better support for
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writing files and for gas.
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* elf32-mips.c (_bfd_mips_elf_object_p): New function, broken out
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of mips_elf_object_p.
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(mips_elf32_object_p): Rename from mips_elf_object_p; call
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_bfd_mips_elf_object_p.
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(_bfd_mips_elf_final_write_processing): Rename from
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mips_elf_final_write_processing and make globally visible.
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(_bfd_mips_elf_fake_sections): Rename from
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mips_elf_fake_sections and make globally visible.
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(_bfd_mips_elf_section_from_bfd_section): Rename from
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mips_elf_section_from_bfd_section and make globally visible.
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(_bfd_mips_elf_section_processing): New function, broken out of
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mips_elf_section_processing.
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(mips_elf32_section_processing): Rename from
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mips_elf_section_processing; call
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_bfd_mips_elf_section_processing.
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(_bfd_mips_elf_symbol_processing): Rename from
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mips_elf_symbol_processing and make globally visible.
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(_bfd_mips_elf_read_ecoff_info): Rename from
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mips_elf_read_ecoff_info and make globally visible.
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(mips_elf32_ecoff_debug_swap): Rename from
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mips_elf_ecoff_debug_swap.
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* elf.c (_bfd_elf_symbol_from_bfd_symbol): Use asymbol rather than
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struct symbol_cache_entry.
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(_bfd_elf_validate_reloc): New function, moved in from
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elfcode.h:validate_reloc.
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* elfcode.h (validate_reloc): Remove; moved into elf.c and renamed
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to _bfd_elf_validate_reloc. Change all callers.
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* elf-bfd.h (bfd_section_from_shdr): Declare.
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(_bfd_elf_symbol_from_bfd_symbol): Declare.
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(_bfd_elf_validate_reloc): Declare.
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(_bfd_mips_elf_object_p): Declare.
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(_bfd_mips_elf_fake_sections): Declare.
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(_bfd_mips_elf_section_from_bfd_section): Declare.
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(_bfd_mips_elf_section_processing): Declare.
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(_bfd_mips_elf_symbol_processing): Declare.
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(_bfd_mips_elf_read_ecoff_info): Declare.
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(_bfd_mips_elf_final_write_processing): Declare.
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* elfxx-target.h (bfd_elfNN_get_reloc_upper_bound): Don't define
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if already defined.
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* elf32-mips.c (mips_elf_object_p): Handle E_MIPS_ARCH_4.
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(mips_elf_final_write_processing): Likewise.
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@ -718,6 +718,10 @@ extern boolean _bfd_elf_new_section_hook PARAMS ((bfd *, asection *));
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extern void _bfd_elf_no_info_to_howto PARAMS ((bfd *, arelent *,
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Elf_Internal_Rela *));
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extern boolean bfd_section_from_shdr PARAMS ((bfd *, unsigned int shindex));
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extern int _bfd_elf_symbol_from_bfd_symbol PARAMS ((bfd *, asymbol **));
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asection *bfd_section_from_elf_index PARAMS ((bfd *, unsigned int));
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boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
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struct bfd_link_info *));
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@ -733,6 +737,8 @@ file_ptr _bfd_elf_assign_file_position_for_section PARAMS ((Elf_Internal_Shdr *,
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file_ptr,
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boolean));
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extern boolean _bfd_elf_validate_reloc PARAMS ((bfd *, arelent *));
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boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
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struct bfd_link_info *));
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boolean _bfd_elf_create_got_section PARAMS ((bfd *,
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@ -876,7 +882,18 @@ extern boolean bfd_elf64_link_create_dynamic_sections
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/* MIPS ELF specific routines. */
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extern boolean _bfd_mips_elf_object_p PARAMS ((bfd *));
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extern boolean _bfd_mips_elf_section_from_shdr
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PARAMS ((bfd *, Elf_Internal_Shdr *, const char *));
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extern boolean _bfd_mips_elf_fake_sections
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PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
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extern boolean _bfd_mips_elf_section_from_bfd_section
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PARAMS ((bfd *, Elf_Internal_Shdr *, asection *, int *));
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extern boolean _bfd_mips_elf_section_processing
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PARAMS ((bfd *, Elf_Internal_Shdr *));
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extern void _bfd_mips_elf_symbol_processing PARAMS ((bfd *, asymbol *));
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extern boolean _bfd_mips_elf_read_ecoff_info
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PARAMS ((bfd *, asection *, struct ecoff_debug_info *));
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extern void _bfd_mips_elf_final_write_processing PARAMS ((bfd *, boolean));
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#endif /* _LIBELF_H_ */
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147
bfd/elf32-mips.c
147
bfd/elf32-mips.c
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@ -85,28 +85,19 @@ static void bfd_mips_elf32_swap_gptab_in
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static void bfd_mips_elf32_swap_gptab_out
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PARAMS ((bfd *, const Elf32_gptab *, Elf32_External_gptab *));
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static boolean mips_elf_sym_is_global PARAMS ((bfd *, asymbol *));
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static boolean mips_elf_object_p PARAMS ((bfd *));
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static boolean mips_elf32_object_p PARAMS ((bfd *));
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static boolean mips_elf_create_procedure_table
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PARAMS ((PTR, bfd *, struct bfd_link_info *, asection *,
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struct ecoff_debug_info *));
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static int mips_elf_additional_program_headers PARAMS ((bfd *));
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static boolean mips_elf_modify_segment_map PARAMS ((bfd *));
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static void mips_elf_final_write_processing
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PARAMS ((bfd *, boolean));
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static boolean mips_elf_set_private_flags PARAMS ((bfd *, flagword));
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static boolean mips_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
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static boolean mips_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
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static boolean mips_elf32_section_from_shdr
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PARAMS ((bfd *, Elf32_Internal_Shdr *, char *));
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static boolean mips_elf_fake_sections
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PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
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static boolean mips_elf_section_from_bfd_section
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PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *, int *));
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static boolean mips_elf_section_processing
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static boolean mips_elf32_section_processing
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PARAMS ((bfd *, Elf32_Internal_Shdr *));
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static void mips_elf_symbol_processing PARAMS ((bfd *, asymbol *));
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static boolean mips_elf_read_ecoff_info
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PARAMS ((bfd *, asection *, struct ecoff_debug_info *));
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static boolean mips_elf_is_local_label
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PARAMS ((bfd *, asymbol *));
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static boolean mips_elf_find_nearest_line
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@ -1445,10 +1436,11 @@ mips_elf_sym_is_global (abfd, sym)
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return (sym->flags & BSF_SECTION_SYM) == 0 ? true : false;
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}
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/* Set the right machine number for a MIPS ELF file. */
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/* Set the right machine number for a MIPS ELF file. This is used for
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both the 32-bit and the 64-bit ABI. */
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static boolean
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mips_elf_object_p (abfd)
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boolean
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_bfd_mips_elf_object_p (abfd)
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bfd *abfd;
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{
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switch (elf_elfheader (abfd)->e_flags & EF_MIPS_ARCH)
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@ -1471,21 +1463,30 @@ mips_elf_object_p (abfd)
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break;
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}
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return true;
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}
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/* Set the right machine number for a 32-bit MIPS ELF file. */
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static boolean
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mips_elf32_object_p (abfd)
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bfd *abfd;
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{
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/* Irix 5 is broken. Object file symbol tables are not always
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sorted correctly such that local symbols precede global symbols,
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and the sh_info field in the symbol table is not always right. */
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elf_bad_symtab (abfd) = true;
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return true;
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return _bfd_mips_elf_object_p (abfd);
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}
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/* The final processing done just before writing out a MIPS ELF object
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file. This gets the MIPS architecture right based on the machine
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number. */
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number. This is used by both the 32-bit and the 64-bit ABI. */
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/*ARGSUSED*/
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static void
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mips_elf_final_write_processing (abfd, linker)
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void
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_bfd_mips_elf_final_write_processing (abfd, linker)
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bfd *abfd;
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boolean linker;
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{
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@ -1767,10 +1768,11 @@ mips_elf32_section_from_shdr (abfd, hdr, name)
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}
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/* Set the correct type for a MIPS ELF section. We do this by the
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section name, which is a hack, but ought to work. */
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section name, which is a hack, but ought to work. This routine is
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used by both the 32-bit and the 64-bit ABI. */
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static boolean
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mips_elf_fake_sections (abfd, hdr, sec)
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boolean
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_bfd_mips_elf_fake_sections (abfd, hdr, sec)
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bfd *abfd;
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Elf32_Internal_Shdr *hdr;
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asection *sec;
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@ -1797,7 +1799,7 @@ mips_elf_fake_sections (abfd, hdr, sec)
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{
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hdr->sh_type = SHT_MIPS_GPTAB;
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hdr->sh_entsize = sizeof (Elf32_External_gptab);
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/* The sh_info field is set in mips_elf_final_write_processing. */
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/* The sh_info field is set in final_write_processing. */
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}
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else if (strcmp (name, ".ucode") == 0)
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hdr->sh_type = SHT_MIPS_UCODE;
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@ -1854,10 +1856,13 @@ mips_elf_fake_sections (abfd, hdr, sec)
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}
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/* Given a BFD section, try to locate the corresponding ELF section
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index. */
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index. This is used by both the 32-bit and the 64-bit ABI.
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Actually, it's not clear to me that the 64-bit ABI supports these,
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but for non-PIC objects we will certainly want support for at least
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the .scommon section. */
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static boolean
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mips_elf_section_from_bfd_section (abfd, hdr, sec, retval)
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boolean
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_bfd_mips_elf_section_from_bfd_section (abfd, hdr, sec, retval)
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bfd *abfd;
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Elf32_Internal_Shdr *hdr;
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asection *sec;
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@ -1878,30 +1883,15 @@ mips_elf_section_from_bfd_section (abfd, hdr, sec, retval)
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/* Work over a section just before writing it out. We update the GP
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value in the .reginfo section based on the value we are using.
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FIXME: We recognize sections that need the SHF_MIPS_GPREL flag by
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name; there has to be a better way. */
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This routine is used by both the 32-bit and the 64-bit ABI. FIXME:
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We recognize sections that need the SHF_MIPS_GPREL flag by name;
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there has to be a better way. */
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static boolean
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mips_elf_section_processing (abfd, hdr)
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boolean
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_bfd_mips_elf_section_processing (abfd, hdr)
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bfd *abfd;
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Elf32_Internal_Shdr *hdr;
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Elf_Internal_Shdr *hdr;
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{
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if (hdr->sh_type == SHT_MIPS_REGINFO)
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{
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bfd_byte buf[4];
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BFD_ASSERT (hdr->sh_size == sizeof (Elf32_External_RegInfo));
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BFD_ASSERT (hdr->contents == NULL);
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if (bfd_seek (abfd,
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hdr->sh_offset + sizeof (Elf32_External_RegInfo) - 4,
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SEEK_SET) == -1)
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return false;
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bfd_h_put_32 (abfd, (bfd_vma) elf_gp (abfd), buf);
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if (bfd_write (buf, (bfd_size_type) 1, (bfd_size_type) 4, abfd) != 4)
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return false;
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}
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if (hdr->bfd_section != NULL)
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{
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const char *name = bfd_get_section_name (abfd, hdr->bfd_section);
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@ -1942,6 +1932,34 @@ mips_elf_section_processing (abfd, hdr)
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return true;
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}
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/* Work over a section just before writing it out. We update the GP
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value in the .reginfo section based on the value we are using. The
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64 bit ABI does not use the .reginfo section. */
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static boolean
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mips_elf32_section_processing (abfd, hdr)
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bfd *abfd;
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Elf32_Internal_Shdr *hdr;
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{
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if (hdr->sh_type == SHT_MIPS_REGINFO)
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{
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bfd_byte buf[4];
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BFD_ASSERT (hdr->sh_size == sizeof (Elf32_External_RegInfo));
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BFD_ASSERT (hdr->contents == NULL);
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if (bfd_seek (abfd,
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hdr->sh_offset + sizeof (Elf32_External_RegInfo) - 4,
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SEEK_SET) == -1)
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return false;
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bfd_h_put_32 (abfd, (bfd_vma) elf_gp (abfd), buf);
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if (bfd_write (buf, (bfd_size_type) 1, (bfd_size_type) 4, abfd) != 4)
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return false;
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}
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return _bfd_mips_elf_section_processing (abfd, hdr);
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}
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/* MIPS ELF uses two common sections. One is the usual one, and the
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other is for small objects. All the small objects are kept
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@ -1971,10 +1989,11 @@ static asection *mips_elf_data_section_ptr;
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static asymbol mips_elf_data_symbol;
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static asymbol *mips_elf_data_symbol_ptr;
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/* Handle the special MIPS section numbers that a symbol may use. */
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/* Handle the special MIPS section numbers that a symbol may use.
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This is used for both the 32-bit and the 64-bit ABI. */
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static void
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mips_elf_symbol_processing (abfd, asym)
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void
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_bfd_mips_elf_symbol_processing (abfd, asym)
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bfd *abfd;
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asymbol *asym;
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{
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@ -2282,8 +2301,8 @@ ecoff_swap_rpdr_out (abfd, in, ex)
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/* Read ECOFF debugging information from a .mdebug section into a
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ecoff_debug_info structure. */
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static boolean
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mips_elf_read_ecoff_info (abfd, section, debug)
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boolean
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_bfd_mips_elf_read_ecoff_info (abfd, section, debug)
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bfd *abfd;
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asection *section;
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struct ecoff_debug_info *debug;
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@ -2433,7 +2452,7 @@ mips_elf_find_nearest_line (abfd, section, symbols, offset, filename_ptr,
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return false;
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}
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if (! mips_elf_read_ecoff_info (abfd, msec, &fi->d))
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if (! _bfd_mips_elf_read_ecoff_info (abfd, msec, &fi->d))
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{
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msec->flags = origflags;
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return false;
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@ -3176,7 +3195,7 @@ mips_elf_final_link (abfd, info)
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reginfo.ri_cprmask[3] |= sub.ri_cprmask[3];
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/* ri_gp_value is set by the function
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mips_elf_section_processing when the section is
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mips_elf32_section_processing when the section is
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finally written out. */
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/* Hack: reset the SEC_HAS_CONTENTS flag so that
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@ -3313,8 +3332,8 @@ mips_elf_final_link (abfd, info)
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/* The ECOFF linking code expects that we have already
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read in the debugging information and set up an
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ecoff_debug_info structure, so we do that now. */
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if (! mips_elf_read_ecoff_info (input_bfd, input_section,
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&input_debug))
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if (! _bfd_mips_elf_read_ecoff_info (input_bfd, input_section,
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&input_debug))
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return false;
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if (! (bfd_ecoff_debug_accumulate
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@ -5893,7 +5912,7 @@ error_return:
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/* ECOFF swapping routines. These are used when dealing with the
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.mdebug section, which is in the ECOFF debugging format. */
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static const struct ecoff_debug_swap mips_elf_ecoff_debug_swap =
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static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap =
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{
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/* Symbol table magic number. */
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magicSym,
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@ -5931,7 +5950,7 @@ static const struct ecoff_debug_swap mips_elf_ecoff_debug_swap =
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_bfd_ecoff_swap_tir_out,
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_bfd_ecoff_swap_rndx_out,
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/* Function to read in symbolic data. */
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mips_elf_read_ecoff_info
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_bfd_mips_elf_read_ecoff_info
|
||||
};
|
||||
|
||||
#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
|
||||
|
|
@ -5946,19 +5965,19 @@ static const struct ecoff_debug_swap mips_elf_ecoff_debug_swap =
|
|||
#define elf_info_to_howto 0
|
||||
#define elf_info_to_howto_rel mips_info_to_howto_rel
|
||||
#define elf_backend_sym_is_global mips_elf_sym_is_global
|
||||
#define elf_backend_object_p mips_elf_object_p
|
||||
#define elf_backend_object_p mips_elf32_object_p
|
||||
#define elf_backend_section_from_shdr mips_elf32_section_from_shdr
|
||||
#define elf_backend_fake_sections mips_elf_fake_sections
|
||||
#define elf_backend_fake_sections _bfd_mips_elf_fake_sections
|
||||
#define elf_backend_section_from_bfd_section \
|
||||
mips_elf_section_from_bfd_section
|
||||
#define elf_backend_section_processing mips_elf_section_processing
|
||||
#define elf_backend_symbol_processing mips_elf_symbol_processing
|
||||
_bfd_mips_elf_section_from_bfd_section
|
||||
#define elf_backend_section_processing mips_elf32_section_processing
|
||||
#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
|
||||
#define elf_backend_additional_program_headers \
|
||||
mips_elf_additional_program_headers
|
||||
#define elf_backend_modify_segment_map mips_elf_modify_segment_map
|
||||
#define elf_backend_final_write_processing \
|
||||
mips_elf_final_write_processing
|
||||
#define elf_backend_ecoff_debug_swap &mips_elf_ecoff_debug_swap
|
||||
_bfd_mips_elf_final_write_processing
|
||||
#define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
|
||||
|
||||
#define bfd_elf32_bfd_is_local_label mips_elf_is_local_label
|
||||
#define bfd_elf32_find_nearest_line mips_elf_find_nearest_line
|
||||
|
|
|
|||
298
bfd/elf64-mips.c
298
bfd/elf64-mips.c
|
|
@ -18,6 +18,12 @@ 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. */
|
||||
|
||||
/* This file supports the 64-bit MIPS ELF ABI.
|
||||
|
||||
The MIPS 64-bit ELF ABI uses an unusual reloc format. This file
|
||||
overrides the usual ELF reloc handling, and handles reading and
|
||||
writing the relocations here. */
|
||||
|
||||
#include "bfd.h"
|
||||
#include "sysdep.h"
|
||||
#include "libbfd.h"
|
||||
|
|
@ -26,11 +32,16 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|||
#include "elf-bfd.h"
|
||||
#include "elf/mips.h"
|
||||
|
||||
/* This file supports the 64-bit MIPS ELF ABI.
|
||||
|
||||
The MIPS 64-bit ELF ABI uses an unusual reloc format. This file
|
||||
overrides the usual ELF reloc handling, and handles reading and
|
||||
writing the relocations here. */
|
||||
/* Get the ECOFF swapping routines. The 64-bit ABI is not supposed to
|
||||
use ECOFF. However, we support it anyhow for an easier changeover. */
|
||||
#include "coff/sym.h"
|
||||
#include "coff/symconst.h"
|
||||
#include "coff/internal.h"
|
||||
#include "coff/ecoff.h"
|
||||
/* The 64 bit versions of the mdebug data structures are in alpha.h. */
|
||||
#include "coff/alpha.h"
|
||||
#define ECOFF_64
|
||||
#include "ecoffswap.h"
|
||||
|
||||
static void mips_elf64_swap_reloc_in
|
||||
PARAMS ((bfd *, const Elf64_Mips_External_Rel *,
|
||||
|
|
@ -38,14 +49,17 @@ static void mips_elf64_swap_reloc_in
|
|||
static void mips_elf64_swap_reloca_in
|
||||
PARAMS ((bfd *, const Elf64_Mips_External_Rela *,
|
||||
Elf64_Mips_Internal_Rela *));
|
||||
#if 0
|
||||
static void mips_elf64_swap_reloc_out
|
||||
PARAMS ((bfd *, const Elf64_Mips_Internal_Rel *,
|
||||
Elf64_Mips_External_Rel *));
|
||||
#endif
|
||||
static void mips_elf64_swap_reloca_out
|
||||
PARAMS ((bfd *, const Elf64_Mips_Internal_Rela *,
|
||||
Elf64_Mips_External_Rela *));
|
||||
static reloc_howto_type *mips_elf64_reloc_type_lookup
|
||||
PARAMS ((bfd *, bfd_reloc_code_real_type));
|
||||
static long mips_elf64_get_reloc_upper_bound PARAMS ((bfd *, asection *));
|
||||
static boolean mips_elf64_slurp_one_reloc_table
|
||||
PARAMS ((bfd *, asection *, asymbol **, const Elf_Internal_Shdr *));
|
||||
static boolean mips_elf64_slurp_reloc_table
|
||||
|
|
@ -94,7 +108,9 @@ enum mips_elf64_reloc_type
|
|||
R_MIPS_CALL_LO16 = 31,
|
||||
R_MIPS_SCN_DISP = 32,
|
||||
R_MIPS_REL16 = 33,
|
||||
R_MIPS_ADD_IMMEDIATE = 34
|
||||
R_MIPS_ADD_IMMEDIATE = 34,
|
||||
R_MIPS_PJUMP = 35,
|
||||
R_MIPS_RELGOT = 36
|
||||
};
|
||||
|
||||
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
|
||||
|
|
@ -615,6 +631,34 @@ static reloc_howto_type mips_elf64_howto_table_rel[] =
|
|||
false, /* partial_inplace */
|
||||
0, /* src_mask */
|
||||
0, /* dst_mask */
|
||||
false), /* pcrel_offset */
|
||||
|
||||
HOWTO (R_MIPS_PJUMP, /* type */
|
||||
0, /* rightshift */
|
||||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||||
0, /* bitsize */
|
||||
false, /* pc_relative */
|
||||
0, /* bitpos */
|
||||
complain_overflow_dont, /* complain_on_overflow */
|
||||
bfd_elf_generic_reloc, /* special_function */
|
||||
"R_MIPS_PJUMP", /* name */
|
||||
false, /* partial_inplace */
|
||||
0, /* src_mask */
|
||||
0, /* dst_mask */
|
||||
false), /* pcrel_offset */
|
||||
|
||||
HOWTO (R_MIPS_RELGOT, /* type */
|
||||
0, /* rightshift */
|
||||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||||
0, /* bitsize */
|
||||
false, /* pc_relative */
|
||||
0, /* bitpos */
|
||||
complain_overflow_dont, /* complain_on_overflow */
|
||||
bfd_elf_generic_reloc, /* special_function */
|
||||
"R_MIPS_RELGOT", /* name */
|
||||
false, /* partial_inplace */
|
||||
0, /* src_mask */
|
||||
0, /* dst_mask */
|
||||
false) /* pcrel_offset */
|
||||
};
|
||||
|
||||
|
|
@ -1124,6 +1168,34 @@ static reloc_howto_type mips_elf64_howto_table_rela[] =
|
|||
false, /* partial_inplace */
|
||||
0, /* src_mask */
|
||||
0, /* dst_mask */
|
||||
false), /* pcrel_offset */
|
||||
|
||||
HOWTO (R_MIPS_PJUMP, /* type */
|
||||
0, /* rightshift */
|
||||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||||
0, /* bitsize */
|
||||
false, /* pc_relative */
|
||||
0, /* bitpos */
|
||||
complain_overflow_dont, /* complain_on_overflow */
|
||||
bfd_elf_generic_reloc, /* special_function */
|
||||
"R_MIPS_PJUMP", /* name */
|
||||
false, /* partial_inplace */
|
||||
0, /* src_mask */
|
||||
0, /* dst_mask */
|
||||
false), /* pcrel_offset */
|
||||
|
||||
HOWTO (R_MIPS_RELGOT, /* type */
|
||||
0, /* rightshift */
|
||||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||||
0, /* bitsize */
|
||||
false, /* pc_relative */
|
||||
0, /* bitpos */
|
||||
complain_overflow_dont, /* complain_on_overflow */
|
||||
bfd_elf_generic_reloc, /* special_function */
|
||||
"R_MIPS_RELGOT", /* name */
|
||||
false, /* partial_inplace */
|
||||
0, /* src_mask */
|
||||
0, /* dst_mask */
|
||||
false) /* pcrel_offset */
|
||||
};
|
||||
|
||||
|
|
@ -1160,6 +1232,10 @@ mips_elf64_swap_reloca_in (abfd, src, dst)
|
|||
dst->r_addend = bfd_h_get_64 (abfd, (bfd_byte *) src->r_addend);
|
||||
}
|
||||
|
||||
#if 0
|
||||
|
||||
/* This is not currently used. */
|
||||
|
||||
/* Swap out a MIPS 64-bit Rel reloc. */
|
||||
|
||||
static void
|
||||
|
|
@ -1176,6 +1252,8 @@ mips_elf64_swap_reloc_out (abfd, src, dst)
|
|||
bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type);
|
||||
}
|
||||
|
||||
#endif /* 0 */
|
||||
|
||||
/* Swap out a MIPS 64-bit Rela reloc. */
|
||||
|
||||
static void
|
||||
|
|
@ -1247,6 +1325,17 @@ mips_elf64_reloc_type_lookup (abfd, code)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
/* Since each entry in an SHT_REL or SHT_RELA section can represent up
|
||||
to three relocs, we must tell the user to allocate more space. */
|
||||
|
||||
static long
|
||||
mips_elf64_get_reloc_upper_bound (abfd, sec)
|
||||
bfd *abfd;
|
||||
asection *sec;
|
||||
{
|
||||
return (sec->reloc_count * 3 + 1) * sizeof (arelent *);
|
||||
}
|
||||
|
||||
/* Read the relocations from one reloc section. */
|
||||
|
||||
static boolean
|
||||
|
|
@ -1495,8 +1584,145 @@ mips_elf64_write_relocs (abfd, sec, data)
|
|||
asection *sec;
|
||||
PTR data;
|
||||
{
|
||||
/* FIXME. */
|
||||
abort ();
|
||||
boolean *failedp = (boolean *) data;
|
||||
unsigned int count;
|
||||
Elf_Internal_Shdr *rela_hdr;
|
||||
Elf64_Mips_External_Rela *ext_rela;
|
||||
unsigned int idx;
|
||||
asymbol *last_sym = 0;
|
||||
int last_sym_idx = 0;
|
||||
|
||||
/* If we have already failed, don't do anything. */
|
||||
if (*failedp)
|
||||
return;
|
||||
|
||||
if ((sec->flags & SEC_RELOC) == 0)
|
||||
return;
|
||||
|
||||
/* The linker backend writes the relocs out itself, and sets the
|
||||
reloc_count field to zero to inhibit writing them here. Also,
|
||||
sometimes the SEC_RELOC flag gets set even when there aren't any
|
||||
relocs. */
|
||||
if (sec->reloc_count == 0)
|
||||
return;
|
||||
|
||||
/* We can combine up to three relocs that refer to the same address
|
||||
if the latter relocs have no associated symbol. */
|
||||
count = 0;
|
||||
for (idx = 0; idx < sec->reloc_count; idx++)
|
||||
{
|
||||
bfd_vma addr;
|
||||
unsigned int i;
|
||||
|
||||
++count;
|
||||
|
||||
addr = sec->orelocation[idx]->address;
|
||||
for (i = 0; i < 2; i++)
|
||||
{
|
||||
arelent *r;
|
||||
|
||||
if (idx + 1 >= sec->reloc_count)
|
||||
break;
|
||||
r = sec->orelocation[idx + 1];
|
||||
if (r->address != addr
|
||||
|| ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
|
||||
|| (*r->sym_ptr_ptr)->value != 0)
|
||||
break;
|
||||
|
||||
/* We can merge the reloc at IDX + 1 with the reloc at IDX. */
|
||||
|
||||
++idx;
|
||||
}
|
||||
}
|
||||
|
||||
rela_hdr = &elf_section_data (sec)->rel_hdr;
|
||||
|
||||
rela_hdr->sh_size = rela_hdr->sh_entsize * count;
|
||||
rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size);
|
||||
if (rela_hdr->contents == NULL)
|
||||
{
|
||||
*failedp = true;
|
||||
return;
|
||||
}
|
||||
|
||||
ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents;
|
||||
for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++)
|
||||
{
|
||||
arelent *ptr;
|
||||
Elf64_Mips_Internal_Rela int_rela;
|
||||
asymbol *sym;
|
||||
int n;
|
||||
unsigned int i;
|
||||
|
||||
ptr = sec->orelocation[idx];
|
||||
|
||||
/* The address of an ELF reloc is section relative for an object
|
||||
file, and absolute for an executable file or shared library.
|
||||
The address of a BFD reloc is always section relative. */
|
||||
if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
|
||||
int_rela.r_offset = ptr->address;
|
||||
else
|
||||
int_rela.r_offset = ptr->address + sec->vma;
|
||||
|
||||
sym = *ptr->sym_ptr_ptr;
|
||||
if (sym == last_sym)
|
||||
n = last_sym_idx;
|
||||
else
|
||||
{
|
||||
last_sym = sym;
|
||||
n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
|
||||
if (n < 0)
|
||||
{
|
||||
*failedp = true;
|
||||
return;
|
||||
}
|
||||
last_sym_idx = n;
|
||||
}
|
||||
|
||||
int_rela.r_sym = n;
|
||||
|
||||
int_rela.r_addend = ptr->addend;
|
||||
|
||||
int_rela.r_ssym = RSS_UNDEF;
|
||||
|
||||
if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
|
||||
&& ! _bfd_elf_validate_reloc (abfd, ptr))
|
||||
{
|
||||
*failedp = true;
|
||||
return;
|
||||
}
|
||||
|
||||
int_rela.r_type = ptr->howto->type;
|
||||
int_rela.r_type2 = (int) R_MIPS_NONE;
|
||||
int_rela.r_type3 = (int) R_MIPS_NONE;
|
||||
|
||||
for (i = 0; i < 2; i++)
|
||||
{
|
||||
arelent *r;
|
||||
|
||||
if (idx + 1 >= sec->reloc_count)
|
||||
break;
|
||||
r = sec->orelocation[idx + 1];
|
||||
if (r->address != ptr->address
|
||||
|| ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
|
||||
|| (*r->sym_ptr_ptr)->value != 0)
|
||||
break;
|
||||
|
||||
/* We can merge the reloc at IDX + 1 with the reloc at IDX. */
|
||||
|
||||
if (i == 0)
|
||||
int_rela.r_type2 = r->howto->type;
|
||||
else
|
||||
int_rela.r_type3 = r->howto->type;
|
||||
|
||||
++idx;
|
||||
}
|
||||
|
||||
mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela);
|
||||
}
|
||||
|
||||
BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents
|
||||
== count);
|
||||
}
|
||||
|
||||
/* Handle a 64-bit MIPS ELF specific section. */
|
||||
|
|
@ -1512,7 +1738,50 @@ mips_elf64_section_from_shdr (abfd, hdr, name)
|
|||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
/* ECOFF swapping routines. These are used when dealing with the
|
||||
.mdebug section, which is in the ECOFF debugging format. */
|
||||
static const struct ecoff_debug_swap mips_elf64_ecoff_debug_swap =
|
||||
{
|
||||
/* Symbol table magic number. */
|
||||
magicSym2,
|
||||
/* Alignment of debugging information. E.g., 4. */
|
||||
8,
|
||||
/* Sizes of external symbolic information. */
|
||||
sizeof (struct hdr_ext),
|
||||
sizeof (struct dnr_ext),
|
||||
sizeof (struct pdr_ext),
|
||||
sizeof (struct sym_ext),
|
||||
sizeof (struct opt_ext),
|
||||
sizeof (struct fdr_ext),
|
||||
sizeof (struct rfd_ext),
|
||||
sizeof (struct ext_ext),
|
||||
/* Functions to swap in external symbolic data. */
|
||||
ecoff_swap_hdr_in,
|
||||
ecoff_swap_dnr_in,
|
||||
ecoff_swap_pdr_in,
|
||||
ecoff_swap_sym_in,
|
||||
ecoff_swap_opt_in,
|
||||
ecoff_swap_fdr_in,
|
||||
ecoff_swap_rfd_in,
|
||||
ecoff_swap_ext_in,
|
||||
_bfd_ecoff_swap_tir_in,
|
||||
_bfd_ecoff_swap_rndx_in,
|
||||
/* Functions to swap out external symbolic data. */
|
||||
ecoff_swap_hdr_out,
|
||||
ecoff_swap_dnr_out,
|
||||
ecoff_swap_pdr_out,
|
||||
ecoff_swap_sym_out,
|
||||
ecoff_swap_opt_out,
|
||||
ecoff_swap_fdr_out,
|
||||
ecoff_swap_rfd_out,
|
||||
ecoff_swap_ext_out,
|
||||
_bfd_ecoff_swap_tir_out,
|
||||
_bfd_ecoff_swap_rndx_out,
|
||||
/* Function to read in symbolic data. */
|
||||
_bfd_mips_elf_read_ecoff_info
|
||||
};
|
||||
|
||||
/* Relocations in the 64 bit MIPS ELF ABI are more complex than in
|
||||
standard ELF. This structure is used to redirect the relocation
|
||||
handling routines. */
|
||||
|
|
@ -1548,7 +1817,18 @@ const struct elf_size_info mips_elf64_size_info =
|
|||
#define ELF_MACHINE_CODE EM_MIPS
|
||||
#define ELF_MAXPAGESIZE 0x1000
|
||||
#define elf_backend_size_info mips_elf64_size_info
|
||||
#define elf_backend_object_p _bfd_mips_elf_object_p
|
||||
#define elf_backend_section_from_shdr mips_elf64_section_from_shdr
|
||||
#define elf_backend_fake_sections _bfd_mips_elf_fake_sections
|
||||
#define elf_backend_section_from_bfd_section \
|
||||
_bfd_mips_elf_section_from_bfd_section
|
||||
#define elf_backend_section_processing _bfd_mips_elf_section_processing
|
||||
#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
|
||||
#define elf_backend_final_write_processing \
|
||||
_bfd_mips_elf_final_write_processing
|
||||
#define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap
|
||||
|
||||
#define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound
|
||||
#define bfd_elf64_bfd_reloc_type_lookup mips_elf64_reloc_type_lookup
|
||||
|
||||
#include "elf64-target.h"
|
||||
|
|
|
|||
Loading…
Reference in a new issue