diff options
Diffstat (limited to 'bfd/elf32-iq2000.c')
| -rw-r--r-- | bfd/elf32-iq2000.c | 111 |
1 files changed, 59 insertions, 52 deletions
diff --git a/bfd/elf32-iq2000.c b/bfd/elf32-iq2000.c index 146dcaaecaf4..160c996e6041 100644 --- a/bfd/elf32-iq2000.c +++ b/bfd/elf32-iq2000.c @@ -1,5 +1,6 @@ /* IQ2000-specific support for 32-bit ELF. - Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc. + Copyright (C) 2003, 2004, 2005, 2006, 2007 + Free Software Foundation, Inc. This file is part of BFD, the Binary File Descriptor library. @@ -17,8 +18,8 @@ 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 "elf-bfd.h" #include "elf/iq2000.h" @@ -349,6 +350,26 @@ iq2000_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, return NULL; } +static reloc_howto_type * +iq2000_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) +{ + unsigned int i; + + for (i = 0; + i < (sizeof (iq2000_elf_howto_table) + / sizeof (iq2000_elf_howto_table[0])); + i++) + if (iq2000_elf_howto_table[i].name != NULL + && strcasecmp (iq2000_elf_howto_table[i].name, r_name) == 0) + return &iq2000_elf_howto_table[i]; + + if (strcasecmp (iq2000_elf_vtinherit_howto.name, r_name) == 0) + return &iq2000_elf_vtinherit_howto; + if (strcasecmp (iq2000_elf_vtentry_howto.name, r_name) == 0) + return &iq2000_elf_vtentry_howto; + + return NULL; +} /* Perform a single relocation. By default we use the standard BFD routines. */ @@ -452,9 +473,9 @@ iq2000_elf_check_relocs (bfd *abfd, case R_IQ2000_32: /* For debug section, change to special harvard-aware relocations. */ - if (memcmp (sec->name, ".debug", 6) == 0 - || memcmp (sec->name, ".stab", 5) == 0 - || memcmp (sec->name, ".eh_frame", 9) == 0) + if (CONST_STRNEQ (sec->name, ".debug") + || CONST_STRNEQ (sec->name, ".stab") + || CONST_STRNEQ (sec->name, ".eh_frame")) { ((Elf_Internal_Rela *) rel)->r_info = ELF32_R_INFO (ELF32_R_SYM (rel->r_info), R_IQ2000_32_DEBUG); @@ -521,9 +542,6 @@ iq2000_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED, Elf_Internal_Rela * rel; Elf_Internal_Rela * relend; - if (info->relocatable) - return TRUE; - symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; sym_hashes = elf_sym_hashes (input_bfd); relend = relocs + input_section->reloc_count; @@ -548,7 +566,6 @@ iq2000_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED, r_symndx = ELF32_R_SYM (rel->r_info); - /* This is a final link. */ howto = iq2000_elf_howto_table + ELF32_R_TYPE (rel->r_info); h = NULL; sym = NULL; @@ -579,6 +596,20 @@ iq2000_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED, name = h->root.root.string; } + 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) + continue; + switch (r_type) { case R_IQ2000_HI16: @@ -642,53 +673,25 @@ iq2000_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED, } -/* Update the got entry reference counts for the section being - removed. */ - -static bfd_boolean -iq2000_elf_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) -{ - return TRUE; -} - /* Return the section that should be marked against GC for a given relocation. */ static asection * -iq2000_elf_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) +iq2000_elf_gc_mark_hook (asection *sec, + struct bfd_link_info *info, + Elf_Internal_Rela *rel, + struct elf_link_hash_entry *h, + Elf_Internal_Sym *sym) { - if (h == NULL) - return bfd_section_from_elf_index (sec->owner, sym->st_shndx); - - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_IQ2000_GNU_VTINHERIT: - case R_IQ2000_GNU_VTENTRY: - break; - - 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; - } - } - - return NULL; + if (h != NULL) + switch (ELF32_R_TYPE (rel->r_info)) + { + case R_IQ2000_GNU_VTINHERIT: + case R_IQ2000_GNU_VTENTRY: + return NULL; + } + + return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); } @@ -733,6 +736,10 @@ iq2000_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd) elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; elf_flags_init (obfd) = TRUE; + + /* Copy object attributes. */ + _bfd_elf_copy_obj_attributes (ibfd, obfd); + return TRUE; } @@ -874,7 +881,6 @@ iq2000_elf_object_p (bfd *abfd) #define elf_info_to_howto iq2000_info_to_howto_rela #define elf_backend_relocate_section iq2000_elf_relocate_section #define elf_backend_gc_mark_hook iq2000_elf_gc_mark_hook -#define elf_backend_gc_sweep_hook iq2000_elf_gc_sweep_hook #define elf_backend_check_relocs iq2000_elf_check_relocs #define elf_backend_object_p iq2000_elf_object_p #define elf_backend_rela_normal 1 @@ -882,6 +888,7 @@ iq2000_elf_object_p (bfd *abfd) #define elf_backend_can_gc_sections 1 #define bfd_elf32_bfd_reloc_type_lookup iq2000_reloc_type_lookup +#define bfd_elf32_bfd_reloc_name_lookup iq2000_reloc_name_lookup #define bfd_elf32_bfd_set_private_flags iq2000_elf_set_private_flags #define bfd_elf32_bfd_copy_private_bfd_data iq2000_elf_copy_private_bfd_data #define bfd_elf32_bfd_merge_private_bfd_data iq2000_elf_merge_private_bfd_data |