/* ADI Blackfin BFD support for 32-bit ELF.
- Copyright 2005, 2006 Free Software Foundation, Inc.
+ Copyright 2005, 2006, 2007 Free Software Foundation, Inc.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ 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/bfin.h"
else
cache_ptr->howto = (reloc_howto_type *) NULL;
-
}
+
/* Given a BFD reloc type, return the howto. */
static reloc_howto_type *
bfin_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
return (reloc_howto_type *) NULL;
+}
+static reloc_howto_type *
+bfin_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < (sizeof (bfin_howto_table)
+ / sizeof (bfin_howto_table[0]));
+ i++)
+ if (bfin_howto_table[i].name != NULL
+ && strcasecmp (bfin_howto_table[i].name, r_name) == 0)
+ return &bfin_howto_table[i];
+
+ for (i = 0;
+ i < (sizeof (bfin_gnuext_howto_table)
+ / sizeof (bfin_gnuext_howto_table[0]));
+ i++)
+ if (bfin_gnuext_howto_table[i].name != NULL
+ && strcasecmp (bfin_gnuext_howto_table[i].name, r_name) == 0)
+ return &bfin_gnuext_howto_table[i];
+
+ return NULL;
}
+
/* Given a bfin relocation type, return the howto. */
static reloc_howto_type *
bfin_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN];
return (reloc_howto_type *) NULL;
-
}
/* Return TRUE if the name is a local label.
check_segment[2];
int silence_segment_error = !(info->shared || info->pie);
- 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;
|| r_type == R_BFIN_GNU_VTENTRY)
continue;
- /* This is a final link. */
r_symndx = ELF32_R_SYM (rel->r_info);
howto = bfin_reloc_type_lookup (input_bfd, r_type);
if (howto == NULL)
}
else
{
- h = sym_hashes [r_symndx - symtab_hdr->sh_info];
+ bfd_boolean warned;
+ bfd_boolean unresolved_reloc;
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned);
+ osec = sec;
+ }
- 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 ((h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- && ! BFINFDPIC_SYM_LOCAL (info, h))
- {
- sec = NULL;
- relocation = 0;
- }
- else
- if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- sec = h->root.u.def.section;
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
- }
- else if (h->root.type == bfd_link_hash_undefweak)
- {
- relocation = 0;
- }
- else if (info->unresolved_syms_in_objects == RM_IGNORE
- && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
- relocation = 0;
- else
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset,
- (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
- || ELF_ST_VISIBILITY (h->other)))))
- return FALSE;
- relocation = 0;
- }
- osec = sec;
+ if (info->relocatable)
+ continue;
+
+ if (h != NULL
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && !BFINFDPIC_SYM_LOCAL (info, h))
+ {
+ osec = sec = NULL;
+ relocation = 0;
}
switch (r_type)
Elf_Internal_Rela *relend;
int i = 0;
- if (info->relocatable)
- return TRUE;
-
dynobj = elf_hash_table (info)->dynobj;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
else
{
bfd_boolean warned;
- h = NULL;
+
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
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)
+ continue;
+
address = rel->r_offset;
/* Then, process normally. */
static asection *
bfin_gc_mark_hook (asection * sec,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info,
Elf_Internal_Rela * rel,
struct elf_link_hash_entry *h,
Elf_Internal_Sym * sym)
{
if (h != NULL)
- {
- switch (ELF32_R_TYPE (rel->r_info))
- {
-
- case R_BFIN_GNU_VTINHERIT:
- case R_BFIN_GNU_VTENTRY:
- break;
-
- default:
- switch (h->root.type)
- {
- default:
- break;
-
- 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;
- }
- }
- }
- 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. */
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_BFIN_GNU_VTINHERIT:
+ case R_BFIN_GNU_VTENTRY:
+ return NULL;
+ }
-static bfd_boolean
-bfinfdpic_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 _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
/* Update the got entry reference counts for the section being removed. */
if (!info->relocatable)
{
struct elf_link_hash_entry *h;
- asection *sec;
/* Force a PT_GNU_STACK segment to be created. */
if (! elf_tdata (output_bfd)->stack_flags)
h->def_regular = 1;
h->type = STT_OBJECT;
}
-
- /* Create a stack section, and set its alignment. */
- sec = bfd_make_section (output_bfd, ".stack");
-
- if (sec == NULL
- || ! bfd_set_section_alignment (output_bfd, sec, 3))
- return FALSE;
}
return TRUE;
}
static bfd_boolean
-elf32_bfinfdpic_modify_segment_map (bfd *output_bfd,
- struct bfd_link_info *info)
+elf32_bfinfdpic_modify_program_headers (bfd *output_bfd,
+ struct bfd_link_info *info)
{
+ struct elf_obj_tdata *tdata = elf_tdata (output_bfd);
struct elf_segment_map *m;
+ Elf_Internal_Phdr *p;
/* objcopy and strip preserve what's already there using
elf32_bfinfdpic_copy_private_bfd_data (). */
if (! info)
return TRUE;
- for (m = elf_tdata (output_bfd)->segment_map; m != NULL; m = m->next)
+ for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
if (m->p_type == PT_GNU_STACK)
break;
if (m)
{
- asection *sec = bfd_get_section_by_name (output_bfd, ".stack");
struct elf_link_hash_entry *h;
- if (sec)
+ /* Obtain the pointer to the __stacksize symbol. */
+ h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
+ FALSE, FALSE, FALSE);
+ if (h)
{
- /* Obtain the pointer to the __stacksize symbol. */
- h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
- FALSE, FALSE, FALSE);
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *)h->root.u.i.link;
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
BFD_ASSERT (h->root.type == bfd_link_hash_defined);
+ }
- /* Set the section size from the symbol value. We
- intentionally ignore the symbol section. */
- if (h->root.type == bfd_link_hash_defined)
- sec->size = h->root.u.def.value;
- else
- sec->size = DEFAULT_STACK_SIZE;
+ /* Set the header p_memsz from the symbol value. We
+ intentionally ignore the symbol section. */
+ if (h && h->root.type == bfd_link_hash_defined)
+ p->p_memsz = h->root.u.def.value;
+ else
+ p->p_memsz = DEFAULT_STACK_SIZE;
- /* Add the stack section to the PT_GNU_STACK segment,
- such that its size and alignment requirements make it
- to the segment. */
- if (m->count == 0)
- {
- m->sections[m->count] = sec;
- m->count++;
- }
- }
+ p->p_align = 8;
}
return TRUE;
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;
}
strip = FALSE;
- if (strncmp (name, ".rela", 5) == 0)
+ if (CONST_STRNEQ (name, ".rela"))
{
if (s->size == 0)
{
s->reloc_count = 0;
}
}
- else if (strncmp (name, ".got", 4) != 0)
+ else if (! CONST_STRNEQ (name, ".got"))
{
/* It's not one of our sections, so don't allocate space. */
continue;
#define elf_symbol_leading_char '_'
#define bfd_elf32_bfd_reloc_type_lookup bfin_bfd_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup \
+ bfin_bfd_reloc_name_lookup
#define elf_info_to_howto bfin_info_to_howto
#define elf_info_to_howto_rel 0
#define elf_backend_object_p elf32_bfin_object_p
#define elf32_bed elf32_bfinfdpic_bed
#undef elf_backend_gc_sweep_hook
-#define elf_backend_gc_sweep_hook bfinfdpic_gc_sweep_hook
#undef elf_backend_got_header_size
#define elf_backend_got_header_size 0
#undef elf_backend_always_size_sections
#define elf_backend_always_size_sections \
elf32_bfinfdpic_always_size_sections
-#undef elf_backend_modify_segment_map
-#define elf_backend_modify_segment_map \
- elf32_bfinfdpic_modify_segment_map
+#undef elf_backend_modify_program_headers
+#define elf_backend_modify_program_headers \
+ elf32_bfinfdpic_modify_program_headers
#undef bfd_elf32_bfd_copy_private_bfd_data
#define bfd_elf32_bfd_copy_private_bfd_data \
elf32_bfinfdpic_copy_private_bfd_data