diff options
Diffstat (limited to 'bfd/elf32-openrisc.c')
| -rw-r--r-- | bfd/elf32-openrisc.c | 216 |
1 files changed, 86 insertions, 130 deletions
diff --git a/bfd/elf32-openrisc.c b/bfd/elf32-openrisc.c index 6220df3c073..b3d67bb82cf 100644 --- a/bfd/elf32-openrisc.c +++ b/bfd/elf32-openrisc.c @@ -1,22 +1,23 @@ /* OpenRISC-specific support for 32-bit ELF. - Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. Contributed by Johan Rydberg, jrydberg@opencores.org -This file is part of BFD, the Binary File Descriptor library. + This file is part of BFD, the Binary File Descriptor library. -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ + You should have received a copy of the GNU General Public License + 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" @@ -25,35 +26,8 @@ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. #include "elf/openrisc.h" #include "libiberty.h" -/* Forward declarations. */ - -static reloc_howto_type *openrisc_reloc_type_lookup - PARAMS ((bfd * , bfd_reloc_code_real_type)); -static void openrisc_info_to_howto_rela - PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); -static bfd_boolean openrisc_elf_relocate_section - PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, - Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); -static bfd_reloc_status_type openrisc_final_link_relocate - PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, - Elf_Internal_Rela *, bfd_vma)); -static bfd_boolean openrisc_elf_gc_sweep_hook - PARAMS ((bfd *, struct bfd_link_info *, asection *, - const Elf_Internal_Rela *)); -static asection * openrisc_elf_gc_mark_hook - PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, - struct elf_link_hash_entry *, Elf_Internal_Sym *)); -static bfd_boolean openrisc_elf_check_relocs - PARAMS ((bfd *, struct bfd_link_info *, asection *, - const Elf_Internal_Rela *)); -static bfd_boolean openrisc_elf_object_p - PARAMS ((bfd *)); -static void openrisc_elf_final_write_processing - PARAMS ((bfd *, bfd_boolean)); - - static reloc_howto_type openrisc_elf_howto_table[] = - { +{ /* This reloc does nothing. */ HOWTO (R_OPENRISC_NONE, /* type */ 0, /* rightshift */ @@ -172,7 +146,7 @@ static reloc_howto_type openrisc_elf_howto_table[] = 0xffffffff, /* dst_mask */ FALSE), /* pcrel_offset */ - /* GNU extension to record C++ vtable hierarchy */ + /* GNU extension to record C++ vtable hierarchy. */ HOWTO (R_OPENRISC_GNU_VTINHERIT, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ @@ -187,7 +161,7 @@ static reloc_howto_type openrisc_elf_howto_table[] = 0, /* dst_mask */ FALSE), /* pcrel_offset */ - /* GNU extension to record C++ vtable member usage */ + /* GNU extension to record C++ vtable member usage. */ HOWTO (R_OPENRISC_GNU_VTENTRY, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ @@ -206,29 +180,28 @@ static reloc_howto_type openrisc_elf_howto_table[] = /* Map BFD reloc types to OpenRISC ELF reloc types. */ struct openrisc_reloc_map - { - bfd_reloc_code_real_type bfd_reloc_val; - unsigned int openrisc_reloc_val; - }; +{ + bfd_reloc_code_real_type bfd_reloc_val; + unsigned int openrisc_reloc_val; +}; static const struct openrisc_reloc_map openrisc_reloc_map[] = - { - { BFD_RELOC_NONE, R_OPENRISC_NONE }, - { BFD_RELOC_32, R_OPENRISC_32 }, - { BFD_RELOC_16, R_OPENRISC_16 }, - { BFD_RELOC_8, R_OPENRISC_8 }, - { BFD_RELOC_OPENRISC_REL_26,R_OPENRISC_INSN_REL_26 }, - { BFD_RELOC_OPENRISC_ABS_26,R_OPENRISC_INSN_ABS_26 }, +{ + { BFD_RELOC_NONE, R_OPENRISC_NONE }, + { BFD_RELOC_32, R_OPENRISC_32 }, + { BFD_RELOC_16, R_OPENRISC_16 }, + { BFD_RELOC_8, R_OPENRISC_8 }, + { BFD_RELOC_OPENRISC_REL_26,R_OPENRISC_INSN_REL_26 }, + { BFD_RELOC_OPENRISC_ABS_26,R_OPENRISC_INSN_ABS_26 }, { BFD_RELOC_HI16, R_OPENRISC_HI_16_IN_INSN }, - { BFD_RELOC_LO16, R_OPENRISC_LO_16_IN_INSN }, - { BFD_RELOC_VTABLE_INHERIT, R_OPENRISC_GNU_VTINHERIT }, - { BFD_RELOC_VTABLE_ENTRY, R_OPENRISC_GNU_VTENTRY } - }; + { BFD_RELOC_LO16, R_OPENRISC_LO_16_IN_INSN }, + { BFD_RELOC_VTABLE_INHERIT, R_OPENRISC_GNU_VTINHERIT }, + { BFD_RELOC_VTABLE_ENTRY, R_OPENRISC_GNU_VTENTRY } +}; static reloc_howto_type * -openrisc_reloc_type_lookup (abfd, code) - bfd * abfd ATTRIBUTE_UNUSED; - bfd_reloc_code_real_type code; +openrisc_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, + bfd_reloc_code_real_type code) { unsigned int i; @@ -243,10 +216,9 @@ openrisc_reloc_type_lookup (abfd, code) /* Set the howto pointer for an OpenRISC ELF reloc. */ static void -openrisc_info_to_howto_rela (abfd, cache_ptr, dst) - bfd * abfd ATTRIBUTE_UNUSED; - arelent * cache_ptr; - Elf_Internal_Rela * dst; +openrisc_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED, + arelent * cache_ptr, + Elf_Internal_Rela * dst) { unsigned int r_type; @@ -259,14 +231,12 @@ openrisc_info_to_howto_rela (abfd, cache_ptr, dst) routines, but a few relocs, we have to do them ourselves. */ static bfd_reloc_status_type -openrisc_final_link_relocate (howto, input_bfd, input_section, contents, rel, - relocation) - reloc_howto_type *howto; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - Elf_Internal_Rela *rel; - bfd_vma relocation; +openrisc_final_link_relocate (reloc_howto_type *howto, + bfd *input_bfd, + asection *input_section, + bfd_byte *contents, + Elf_Internal_Rela *rel, + bfd_vma relocation) { bfd_reloc_status_type r = bfd_reloc_ok; @@ -319,16 +289,14 @@ openrisc_final_link_relocate (howto, input_bfd, input_section, contents, rel, accordingly. */ static bfd_boolean -openrisc_elf_relocate_section (output_bfd, info, input_bfd, input_section, - contents, relocs, local_syms, local_sections) - bfd *output_bfd; - struct bfd_link_info *info; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - Elf_Internal_Rela *relocs; - Elf_Internal_Sym *local_syms; - asection **local_sections; +openrisc_elf_relocate_section (bfd *output_bfd, + struct bfd_link_info *info, + bfd *input_bfd, + asection *input_section, + bfd_byte *contents, + Elf_Internal_Rela *relocs, + Elf_Internal_Sym *local_syms, + asection **local_sections) { Elf_Internal_Shdr *symtab_hdr; struct elf_link_hash_entry **sym_hashes; @@ -396,7 +364,7 @@ openrisc_elf_relocate_section (output_bfd, info, input_bfd, input_section, if (r != bfd_reloc_ok) { - const char *msg = (const char *) NULL; + const char *msg = NULL; switch (r) { @@ -444,38 +412,35 @@ openrisc_elf_relocate_section (output_bfd, info, input_bfd, input_section, relocation. */ static asection * -openrisc_elf_gc_mark_hook (sec, info, rel, h, sym) - asection *sec; - struct bfd_link_info *info ATTRIBUTE_UNUSED; - Elf_Internal_Rela *rel; - struct elf_link_hash_entry *h; - Elf_Internal_Sym *sym; +openrisc_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) { - if (h != NULL) + if (h == NULL) + return bfd_section_from_elf_index (sec->owner, sym->st_shndx); + + switch (ELF32_R_TYPE (rel->r_info)) { - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_OPENRISC_GNU_VTINHERIT: - case R_OPENRISC_GNU_VTENTRY: - break; + case R_OPENRISC_GNU_VTINHERIT: + case R_OPENRISC_GNU_VTENTRY: + break; - default: - switch (h->root.type) - { - case bfd_link_hash_defined: - case bfd_link_hash_defweak: - return h->root.u.def.section; + 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; + case bfd_link_hash_common: + return h->root.u.c.p->section; - default: - break; - } + default: + break; } } - else - return bfd_section_from_elf_index (sec->owner, sym->st_shndx); return NULL; } @@ -483,11 +448,10 @@ openrisc_elf_gc_mark_hook (sec, info, rel, h, sym) /* Update the got entry reference counts for the section being removed. */ static bfd_boolean -openrisc_elf_gc_sweep_hook (abfd, info, sec, relocs) - bfd *abfd ATTRIBUTE_UNUSED; - struct bfd_link_info *info ATTRIBUTE_UNUSED; - asection *sec ATTRIBUTE_UNUSED; - const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; +openrisc_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; } @@ -497,11 +461,10 @@ openrisc_elf_gc_sweep_hook (abfd, info, sec, relocs) virtual table relocs for gc. */ static bfd_boolean -openrisc_elf_check_relocs (abfd, info, sec, relocs) - bfd *abfd; - struct bfd_link_info *info; - asection *sec; - const Elf_Internal_Rela *relocs; +openrisc_elf_check_relocs (bfd *abfd, + struct bfd_link_info *info, + asection *sec, + const Elf_Internal_Rela *relocs) { Elf_Internal_Shdr *symtab_hdr; struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; @@ -559,24 +522,17 @@ openrisc_elf_check_relocs (abfd, info, sec, relocs) /* Set the right machine number. */ static bfd_boolean -openrisc_elf_object_p (abfd) - bfd *abfd; +openrisc_elf_object_p (bfd *abfd) { - switch (elf_elfheader (abfd)->e_flags & 0xf) - { - default: - (void) bfd_default_set_arch_mach (abfd, bfd_arch_openrisc, 0); - break; - } + bfd_default_set_arch_mach (abfd, bfd_arch_openrisc, 0); return TRUE; } /* Store the machine number in the flags field. */ static void -openrisc_elf_final_write_processing (abfd, linker) - bfd *abfd; - bfd_boolean linker ATTRIBUTE_UNUSED; +openrisc_elf_final_write_processing (bfd *abfd, + bfd_boolean linker ATTRIBUTE_UNUSED) { unsigned long val; |