diff options
Diffstat (limited to 'bfd/elf-bfd.h')
| -rw-r--r-- | bfd/elf-bfd.h | 89 |
1 files changed, 80 insertions, 9 deletions
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index 78e39d9..2fae2b4 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -235,11 +235,79 @@ enum elf_link_info_type ELF_INFO_TYPE_STABS, ELF_INFO_TYPE_MERGE, ELF_INFO_TYPE_EH_FRAME, - ELF_INFO_TYPE_EH_FRAME_HDR, ELF_INFO_TYPE_JUST_SYMS, ELF_INFO_TYPE_LAST }; +/* Structures used by the eh_frame optimization code. */ +struct cie_header +{ + unsigned int length; + unsigned int id; +}; + +struct cie +{ + 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; + struct elf_link_hash_entry *personality; + unsigned char per_encoding; + unsigned char lsda_encoding; + unsigned char fde_encoding; + unsigned char initial_insn_length; + unsigned char make_relative; + unsigned char make_lsda_relative; + unsigned char initial_instructions[50]; +}; + +struct eh_cie_fde +{ + unsigned int offset; + unsigned int size; + asection *sec; + 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; +}; + +struct eh_frame_sec_info +{ + unsigned int count; + unsigned int alloced; + struct eh_cie_fde entry[1]; +}; + +struct eh_frame_array_ent +{ + bfd_vma initial_loc; + bfd_vma fde; +}; + +struct eh_frame_hdr_info +{ + struct cie last_cie; + asection *last_cie_sec; + 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. */ + boolean table; +}; + /* Cached start, size and alignment of PT_TLS segment. */ struct elf_link_tls_segment { @@ -294,6 +362,9 @@ struct elf_link_hash_table /* A pointer to information used to merge SEC_MERGE sections. */ PTR merge_info; + /* Used by eh_frame code when editing .eh_frame. */ + struct eh_frame_hdr_info eh_info; + /* A linked list of local symbols to be added to .dynsym. */ struct elf_link_local_dynamic_entry *dynlocal; @@ -1118,12 +1189,12 @@ struct elf_obj_tdata include this field for a MIPS ELF target. */ asection **local_stubs; - /* Used to determine if the e_flags field has been initialized */ - boolean flags_init; - /* Used to determine if PT_GNU_EH_FRAME segment header should be created. */ - boolean eh_frame_hdr; + asection *eh_frame_hdr; + + /* Used to determine if the e_flags field has been initialized */ + boolean flags_init; /* Number of symbol version definitions we are about to emit. */ unsigned int cverdefs; @@ -1366,16 +1437,16 @@ extern void _bfd_elf_strtab_finalize PARAMS ((struct elf_strtab_hash *)); extern boolean _bfd_elf_discard_section_eh_frame - PARAMS ((bfd *, struct bfd_link_info *, asection *, asection *, + PARAMS ((bfd *, struct bfd_link_info *, asection *, boolean (*) (bfd_vma, PTR), struct elf_reloc_cookie *)); extern boolean _bfd_elf_discard_section_eh_frame_hdr - PARAMS ((bfd *, struct bfd_link_info *, asection *)); + PARAMS ((bfd *, struct bfd_link_info *)); extern bfd_vma _bfd_elf_eh_frame_section_offset PARAMS ((bfd *, asection *, bfd_vma)); extern boolean _bfd_elf_write_section_eh_frame - PARAMS ((bfd *, asection *, asection *, bfd_byte *)); + PARAMS ((bfd *, struct bfd_link_info *, asection *, bfd_byte *)); extern boolean _bfd_elf_write_section_eh_frame_hdr - PARAMS ((bfd *, asection *)); + PARAMS ((bfd *, struct bfd_link_info *)); extern boolean _bfd_elf_maybe_strip_eh_frame_hdr PARAMS ((struct bfd_link_info *)); |