diff options
Diffstat (limited to 'bfd/elf64-mips.c')
| -rw-r--r-- | bfd/elf64-mips.c | 165 |
1 files changed, 47 insertions, 118 deletions
diff --git a/bfd/elf64-mips.c b/bfd/elf64-mips.c index 79b172f..0e388ef 100644 --- a/bfd/elf64-mips.c +++ b/bfd/elf64-mips.c @@ -1,6 +1,8 @@ /* MIPS-specific support for 64-bit ELF Copyright 1996, 1997, 1998, 1999 Free Software Foundation, Inc. Ian Lance Taylor, Cygnus Support + Linker support added by Mark Mitchell, CodeSourcery, LLC. + <mark@codesourcery.com> This file is part of BFD, the Binary File Descriptor library. @@ -74,10 +76,6 @@ static boolean mips_elf64_slurp_one_reloc_table static boolean mips_elf64_slurp_reloc_table PARAMS ((bfd *, asection *, asymbol **, boolean)); static void mips_elf64_write_relocs PARAMS ((bfd *, asection *, PTR)); -static boolean mips_elf64_section_from_shdr - PARAMS ((bfd *, Elf_Internal_Shdr *, char *)); -static boolean mips_elf64_section_processing - PARAMS ((bfd *, Elf_Internal_Shdr *)); static boolean mips_elf64_slurp_armap PARAMS ((bfd *)); static boolean mips_elf64_write_armap PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); @@ -86,6 +84,9 @@ static boolean mips_elf64_write_armap from smaller values. Start with zero, widen, *then* decrement. */ #define MINUS_ONE (((bfd_vma)0) - 1) +/* The number of local .got entries we reserve. */ +#define MIPS_RESERVED_GOTNO (2) + /* The relocation table used for SHT_REL sections. */ static reloc_howto_type mips_elf64_howto_table_rel[] = @@ -1814,115 +1815,6 @@ mips_elf64_write_relocs (abfd, sec, data) == count); } -/* Handle a 64-bit MIPS ELF specific section. */ - -static boolean -mips_elf64_section_from_shdr (abfd, hdr, name) - bfd *abfd; - Elf_Internal_Shdr *hdr; - char *name; -{ - if (! _bfd_mips_elf_section_from_shdr (abfd, hdr, name)) - return false; - - /* For a SHT_MIPS_OPTIONS section, look for a ODK_REGINFO entry, and - set the gp value based on what we find. We may see both - SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS/ODK_REGINFO; in that case, - they should agree. */ - if (hdr->sh_type == SHT_MIPS_OPTIONS) - { - bfd_byte *contents, *l, *lend; - - contents = (bfd_byte *) bfd_malloc (hdr->sh_size); - if (contents == NULL) - return false; - if (! bfd_get_section_contents (abfd, hdr->bfd_section, contents, - (file_ptr) 0, hdr->sh_size)) - { - free (contents); - return false; - } - l = contents; - lend = contents + hdr->sh_size; - while (l + sizeof (Elf_External_Options) <= lend) - { - Elf_Internal_Options intopt; - - bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l, - &intopt); - if (intopt.kind == ODK_REGINFO) - { - Elf64_Internal_RegInfo intreg; - - bfd_mips_elf64_swap_reginfo_in - (abfd, - ((Elf64_External_RegInfo *) - (l + sizeof (Elf_External_Options))), - &intreg); - elf_gp (abfd) = intreg.ri_gp_value; - } - l += intopt.size; - } - free (contents); - } - - return true; -} - -/* Work over a section just before writing it out. We update the GP - value in the SHT_MIPS_OPTIONS section based on the value we are - using. */ - -static boolean -mips_elf64_section_processing (abfd, hdr) - bfd *abfd; - Elf_Internal_Shdr *hdr; -{ - if (hdr->sh_type == SHT_MIPS_OPTIONS - && hdr->bfd_section != NULL - && elf_section_data (hdr->bfd_section) != NULL - && elf_section_data (hdr->bfd_section)->tdata != NULL) - { - bfd_byte *contents, *l, *lend; - - /* We stored the section contents in the elf_section_data tdata - field in the set_section_contents routine. We save the - section contents so that we don't have to read them again. - At this point we know that elf_gp is set, so we can look - through the section contents to see if there is an - ODK_REGINFO structure. */ - - contents = (bfd_byte *) elf_section_data (hdr->bfd_section)->tdata; - l = contents; - lend = contents + hdr->sh_size; - while (l + sizeof (Elf_External_Options) <= lend) - { - Elf_Internal_Options intopt; - - bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l, - &intopt); - if (intopt.kind == ODK_REGINFO) - { - bfd_byte buf[8]; - - if (bfd_seek (abfd, - (hdr->sh_offset - + (l - contents) - + sizeof (Elf_External_Options) - + (sizeof (Elf64_External_RegInfo) - 8)), - SEEK_SET) == -1) - return false; - bfd_h_put_64 (abfd, elf_gp (abfd), buf); - if (bfd_write (buf, 1, 8, abfd) != 8) - return false; - } - l += intopt.size; - } - } - - return _bfd_mips_elf_section_processing (abfd, hdr); -} - /* Irix 6 defines a brand new archive map format, so that they can have archives more than 4 GB in size. */ @@ -2215,29 +2107,66 @@ const struct elf_size_info mips_elf64_size_info = #define TARGET_BIG_NAME "elf64-bigmips" #define ELF_ARCH bfd_arch_mips #define ELF_MACHINE_CODE EM_MIPS + #define ELF_MAXPAGESIZE 0x1000 + +#define elf_backend_collect true +#define elf_backend_type_change_ok true +#define elf_backend_can_gc_sections true #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_section_from_shdr _bfd_mips_elf_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 mips_elf64_section_processing +#define elf_backend_section_processing _bfd_mips_elf_section_processing #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing +#define elf_backend_additional_program_headers \ + _bfd_mips_elf_additional_program_headers +#define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map #define elf_backend_final_write_processing \ _bfd_mips_elf_final_write_processing #define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap - +#define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook +#define elf_backend_create_dynamic_sections \ + _bfd_mips_elf_create_dynamic_sections +#define elf_backend_check_relocs _bfd_mips_elf_check_relocs +#define elf_backend_adjust_dynamic_symbol \ + _bfd_mips_elf_adjust_dynamic_symbol +#define elf_backend_always_size_sections \ + _bfd_mips_elf_always_size_sections +#define elf_backend_size_dynamic_sections \ + _bfd_mips_elf_size_dynamic_sections +#define elf_backend_relocate_section _bfd_mips_elf_relocate_section +#define elf_backend_link_output_symbol_hook \ + _bfd_mips_elf_link_output_symbol_hook +#define elf_backend_finish_dynamic_symbol \ + _bfd_mips_elf_finish_dynamic_symbol +#define elf_backend_finish_dynamic_sections \ + _bfd_mips_elf_finish_dynamic_sections +#define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook +#define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook +#define elf_backend_got_header_size (4*MIPS_RESERVED_GOTNO) +#define elf_backend_plt_header_size 0 + +/* We don't set bfd_elf64_bfd_is_local_label_name because the 32-bit + MIPS-specific function only applies to IRIX5, which had no 64-bit + ABI. */ #define bfd_elf64_find_nearest_line _bfd_mips_elf_find_nearest_line -#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 #define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents +#define bfd_elf64_bfd_link_hash_table_create \ + _bfd_mips_elf_link_hash_table_create +#define bfd_elf64_bfd_final_link _bfd_mips_elf_final_link #define bfd_elf64_bfd_copy_private_bfd_data \ _bfd_mips_elf_copy_private_bfd_data #define bfd_elf64_bfd_merge_private_bfd_data \ _bfd_mips_elf_merge_private_bfd_data #define bfd_elf64_bfd_set_private_flags _bfd_mips_elf_set_private_flags +#define bfd_elf64_bfd_print_private_bfd_data \ + _bfd_mips_elf_print_private_bfd_data +#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 #define bfd_elf64_archive_functions #define bfd_elf64_archive_slurp_armap mips_elf64_slurp_armap #define bfd_elf64_archive_slurp_extended_name_table \ |