diff options
Diffstat (limited to 'bfd/elf32-sparc.c')
-rw-r--r-- | bfd/elf32-sparc.c | 141 |
1 files changed, 11 insertions, 130 deletions
diff --git a/bfd/elf32-sparc.c b/bfd/elf32-sparc.c index e44922c..b0962cf 100644 --- a/bfd/elf32-sparc.c +++ b/bfd/elf32-sparc.c @@ -27,10 +27,6 @@ static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup PARAMS ((bfd *, bfd_reloc_code_real_type)); static void elf_info_to_howto PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); -static boolean elf32_sparc_create_dynamic_sections - PARAMS ((bfd *, struct bfd_link_info *)); -static boolean elf32_sparc_create_got_section - PARAMS ((bfd *, struct bfd_link_info *)); static boolean elf32_sparc_check_relocs PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *)); @@ -199,124 +195,6 @@ elf_info_to_howto (abfd, cache_ptr, dst) /* nop. */ #define PLT_ENTRY_WORD2 SPARC_NOP -/* Create dynamic sections when linking against a dynamic object. */ - -static boolean -elf32_sparc_create_dynamic_sections (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - flagword flags; - register asection *s; - struct elf_link_hash_entry *h; - - /* We need to create .plt, .rela.plt, .got, .dynbss, and .rela.bss - sections. */ - - flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY; - - s = bfd_make_section (abfd, ".plt"); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, flags | SEC_CODE) - || ! bfd_set_section_alignment (abfd, s, 2)) - return false; - - /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the - .plt section. */ - h = NULL; - if (! (_bfd_generic_link_add_one_symbol - (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, (bfd_vma) 0, - (const char *) NULL, false, get_elf_backend_data (abfd)->collect, - (struct bfd_link_hash_entry **) &h))) - return false; - h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; - h->type = STT_OBJECT; - - if (info->shared - && ! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; - - s = bfd_make_section (abfd, ".rela.plt"); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) - || ! bfd_set_section_alignment (abfd, s, 2)) - return false; - - if (! elf32_sparc_create_got_section (abfd, info)) - return false; - - /* The .dynbss section is a place to put symbols which are defined - by dynamic objects, are referenced by regular objects, and are - not functions. We must allocate space for them in the process - image and use a R_SPARC_COPY reloc to tell the dynamic linker to - initialize them at run time. The linker script puts the .dynbss - section into the .bss section of the final image. */ - s = bfd_make_section (abfd, ".dynbss"); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, SEC_ALLOC)) - return false; - - /* The .rela.bss section holds copy relocs. */ - if (! info->shared) - { - s = bfd_make_section (abfd, ".rela.bss"); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) - || ! bfd_set_section_alignment (abfd, s, 2)) - return false; - } - - return true; -} - -/* Create the .got section to hold the global offset table. */ - -static boolean -elf32_sparc_create_got_section (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - register asection *s; - struct elf_link_hash_entry *h; - - /* This function may be called more than once. */ - if (bfd_get_section_by_name (abfd, ".got") != NULL) - return true; - - s = bfd_make_section (abfd, ".got"); - if (s == NULL - || ! bfd_set_section_flags (abfd, s, - (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS - | SEC_IN_MEMORY)) - || ! bfd_set_section_alignment (abfd, s, 2)) - return false; - - /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got - section. We don't do this in the linker script because we don't - want to define the symbol if we are not creating a global offset - table. FIXME: The Solaris linker puts _GLOBAL_OFFSET_TABLE_ at - the start of the .got section, but when using the small PIC model - the .got is accessed using a signed 13 bit offset. Shouldn't - _GLOBAL_OFFSET_TABLE_ be located at .got + 4096? */ - h = NULL; - if (! (_bfd_generic_link_add_one_symbol - (info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL, s, (bfd_vma) 0, - (const char *) NULL, false, get_elf_backend_data (abfd)->collect, - (struct bfd_link_hash_entry **) &h))) - return false; - h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; - h->type = STT_OBJECT; - - if (info->shared - && ! bfd_elf32_link_record_dynamic_symbol (info, h)) - return false; - - /* The first global offset table entry is reserved. */ - s->_raw_size += 4; - - return true; -} - /* Look through the relocs for a section during the first phase, and allocate space in the global offset table or procedure linkage table. */ @@ -373,7 +251,7 @@ elf32_sparc_check_relocs (abfd, info, sec, relocs) { /* Create the .got section. */ elf_hash_table (info)->dynobj = dynobj = abfd; - if (! elf32_sparc_create_got_section (dynobj, info)) + if (! _bfd_elf_create_got_section (dynobj, info)) return false; } @@ -515,7 +393,7 @@ elf32_sparc_check_relocs (abfd, info, sec, relocs) { const char *name; - name = (elf_string_from_elf_section + name = (bfd_elf_string_from_elf_section (abfd, elf_elfheader (abfd)->e_shstrndx, elf_section_data (sec)->rel_hdr.sh_name)); @@ -1211,7 +1089,7 @@ elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section, { const char *name; - name = (elf_string_from_elf_section + name = (bfd_elf_string_from_elf_section (input_bfd, elf_elfheader (input_bfd)->e_shstrndx, elf_section_data (input_section)->rel_hdr.sh_name)); @@ -1308,9 +1186,9 @@ elf32_sparc_relocate_section (output_bfd, info, input_bfd, input_section, name = h->root.root.string; else { - name = elf_string_from_elf_section (input_bfd, - symtab_hdr->sh_link, - sym->st_name); + name = bfd_elf_string_from_elf_section (input_bfd, + symtab_hdr->sh_link, + sym->st_name); if (name == NULL) return false; if (*name == '\0') @@ -1568,7 +1446,7 @@ elf32_sparc_finish_dynamic_sections (output_bfd, info) sym.st_shndx = indx; bfd_elf32_swap_symbol_out (output_bfd, &sym, - ((Elf32_External_Sym *) sdynsym->contents +(char*) ((Elf32_External_Sym *) sdynsym->contents + elf_section_data (s)->dynindx)); } @@ -1587,7 +1465,7 @@ elf32_sparc_finish_dynamic_sections (output_bfd, info) #define ELF_MACHINE_CODE EM_SPARC #define ELF_MAXPAGESIZE 0x10000 #define elf_backend_create_dynamic_sections \ - elf32_sparc_create_dynamic_sections + _bfd_elf_create_dynamic_sections #define elf_backend_check_relocs elf32_sparc_check_relocs #define elf_backend_adjust_dynamic_symbol \ elf32_sparc_adjust_dynamic_symbol @@ -1598,5 +1476,8 @@ elf32_sparc_finish_dynamic_sections (output_bfd, info) elf32_sparc_finish_dynamic_symbol #define elf_backend_finish_dynamic_sections \ elf32_sparc_finish_dynamic_sections +#define elf_backend_want_got_plt 0 +#define elf_backend_plt_readonly 1 +#define elf_backend_want_plt_sym 1 #include "elf32-target.h" |