diff options
Diffstat (limited to 'bfd/elf32-cr16c.c')
| -rw-r--r-- | bfd/elf32-cr16c.c | 110 |
1 files changed, 39 insertions, 71 deletions
diff --git a/bfd/elf32-cr16c.c b/bfd/elf32-cr16c.c index ec7199b26943..3a1db7e87647 100644 --- a/bfd/elf32-cr16c.c +++ b/bfd/elf32-cr16c.c @@ -1,5 +1,5 @@ /* BFD back-end for National Semiconductor's CR16C ELF - Copyright 2004, 2005 Free Software Foundation, Inc. + Copyright 2004, 2005, 2006, 2007 Free Software Foundation, Inc. This file is part of BFD, the Binary File Descriptor library. @@ -17,8 +17,8 @@ along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ -#include "bfd.h" #include "sysdep.h" +#include "bfd.h" #include "libbfd.h" #include "bfdlink.h" #include "elf/cr16c.h" @@ -150,6 +150,20 @@ elf_cr16c_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, return 0; } +static reloc_howto_type * +elf_cr16c_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, + const char *r_name) +{ + unsigned int i; + + for (i = 0; i < sizeof (elf_howto_table) / sizeof (elf_howto_table[0]); i++) + if (elf_howto_table[i].name != NULL + && strcasecmp (elf_howto_table[i].name, r_name) == 0) + return &elf_howto_table[i]; + + return NULL; +} + static void elf_cr16c_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr ATTRIBUTE_UNUSED, @@ -692,26 +706,6 @@ elf32_cr16c_relocate_section (bfd *output_bfd, r_type = ELF32_R_TYPE (rel->r_info); howto = elf_howto_table + r_type; - if (info->relocatable) - { - /* This is a relocatable link. We don't have to change - anything, unless the reloc is against a section symbol, - in which case we have to adjust according to where the - section symbol winds up in the output section. */ - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) - { - sec = local_sections[r_symndx]; - rel->r_addend += sec->output_offset + sym->st_value; - } - } - - continue; - } - - /* This is a final link. */ h = NULL; sym = NULL; sec = NULL; @@ -731,6 +725,28 @@ elf32_cr16c_relocate_section (bfd *output_bfd, unresolved_reloc, warned); } + if (sec != NULL && elf_discarded_section (sec)) + { + /* For relocs against symbols from removed linkonce sections, + or sections discarded by a linker script, we just want the + section contents zeroed. Avoid any special processing. */ + _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); + rel->r_info = 0; + rel->r_addend = 0; + continue; + } + + if (info->relocatable) + { + /* This is a relocatable link. We don't have to change + anything, unless the reloc is against a section symbol, + in which case we have to adjust according to where the + section symbol winds up in the output section. */ + if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION) + rel->r_addend += sec->output_offset; + continue; + } + r = cr16c_elf_final_link_relocate (howto, input_bfd, output_bfd, input_section, contents, rel->r_offset, @@ -798,53 +814,6 @@ elf32_cr16c_relocate_section (bfd *output_bfd, return TRUE; } -static asection * -elf32_cr16c_gc_mark_hook (asection *sec, - struct bfd_link_info *info ATTRIBUTE_UNUSED, - Elf_Internal_Rela *rel, - struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym) -{ - if (h != NULL) - { - switch (ELF32_R_TYPE (rel->r_info)) - { - - default: - switch (h->root.type) - { - case bfd_link_hash_defined: - case bfd_link_hash_defweak: - return h->root.u.def.section; - - case bfd_link_hash_common: - return h->root.u.c.p->section; - - default: - break; - } - } - } - else - { - return bfd_section_from_elf_index (sec->owner, sym->st_shndx); - } - - return NULL; -} - -/* Update the got entry reference counts for the section being removed. */ - -static bfd_boolean -elf32_cr16c_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info ATTRIBUTE_UNUSED, - asection *sec ATTRIBUTE_UNUSED, - const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED) -{ - /* We don't support garbage collection of GOT and PLT relocs yet. */ - return TRUE; -} - /* CR16C ELF uses three common sections: One is for default common symbols (placed in usual common section). Second is for near common symbols (placed in "ncommon" section). @@ -988,11 +957,10 @@ elf32_cr16c_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED #define elf_symbol_leading_char '_' #define bfd_elf32_bfd_reloc_type_lookup elf_cr16c_reloc_type_lookup +#define bfd_elf32_bfd_reloc_name_lookup elf_cr16c_reloc_name_lookup #define elf_info_to_howto elf_cr16c_info_to_howto #define elf_info_to_howto_rel elf_cr16c_info_to_howto_rel #define elf_backend_relocate_section elf32_cr16c_relocate_section -#define elf_backend_gc_mark_hook elf32_cr16c_gc_mark_hook -#define elf_backend_gc_sweep_hook elf32_cr16c_gc_sweep_hook #define elf_backend_symbol_processing elf32_cr16c_symbol_processing #define elf_backend_section_from_bfd_section elf32_cr16c_section_from_bfd_section #define elf_backend_add_symbol_hook elf32_cr16c_add_symbol_hook |