/* VAX series support for 32-bit ELF
Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005 Free Software Foundation, Inc.
+ 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
Contributed by Matt Thomas <matt@3am-software.com>.
This file is part of BFD, the Binary File Descriptor library.
static struct bfd_link_hash_table *elf_vax_link_hash_table_create (bfd *);
static bfd_boolean elf_vax_check_relocs (bfd *, struct bfd_link_info *,
asection *, const Elf_Internal_Rela *);
-static asection *elf_vax_gc_mark_hook (asection *, struct bfd_link_info *,
- Elf_Internal_Rela *,
- struct elf_link_hash_entry *,
- Elf_Internal_Sym *);
-static bfd_boolean elf_vax_gc_sweep_hook (bfd *, struct bfd_link_info *,
- asection *,
- const Elf_Internal_Rela *);
static bfd_boolean elf_vax_adjust_dynamic_symbol (struct bfd_link_info *,
struct elf_link_hash_entry *);
static bfd_boolean elf_vax_size_dynamic_sections (bfd *, struct bfd_link_info *);
return 0;
}
+static reloc_howto_type *
+reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++)
+ if (howto_table[i].name != NULL
+ && strcasecmp (howto_table[i].name, r_name) == 0)
+ return &howto_table[i];
+
+ return NULL;
+}
+
#define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup reloc_name_lookup
#define ELF_ARCH bfd_arch_vax
/* end code generated by elf.el */
\f
if (ret == NULL)
return NULL;
- if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
- elf_vax_link_hash_newfunc))
+ if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
+ elf_vax_link_hash_newfunc,
+ sizeof (struct elf_vax_link_hash_entry)))
{
free (ret);
return NULL;
if (name == NULL)
return FALSE;
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
+ BFD_ASSERT (CONST_STRNEQ (name, ".rela")
&& strcmp (bfd_get_section_name (abfd, sec),
name + 5) == 0);
static asection *
elf_vax_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_VAX_GNU_VTINHERIT:
- case R_VAX_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;
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+ case R_VAX_GNU_VTINHERIT:
+ case R_VAX_GNU_VTENTRY:
+ return NULL;
+ }
+
+ return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
/* Update the got entry reference counts for the section being removed. */
if (info->shared)
return TRUE;
+ if (h->size == 0)
+ {
+ (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
+ h->root.root.string);
+ return TRUE;
+ }
+
/* We must allocate the symbol in our .dynbss section, which will
become part of the .bss section of the executable. There will be
an entry for this symbol in the .dynsym section. The dynamic
for (s = dynobj->sections; s != NULL; s = s->next)
{
const char *name;
- bfd_boolean strip;
if ((s->flags & SEC_LINKER_CREATED) == 0)
continue;
of the dynobj section names depend upon the input files. */
name = bfd_get_section_name (dynobj, s);
- strip = FALSE;
-
if (strcmp (name, ".plt") == 0)
{
- if (s->size == 0)
- {
- /* Strip this section if we don't need it; see the
- comment below. */
- strip = TRUE;
- }
- else
- {
- /* Remember whether there is a PLT. */
- plt = TRUE;
- }
+ /* Remember whether there is a PLT. */
+ plt = s->size != 0;
}
- else if (strncmp (name, ".rela", 5) == 0)
+ else if (CONST_STRNEQ (name, ".rela"))
{
- if (s->size == 0)
- {
- /* If we don't need this section, strip it from the
- output file. This is mostly to handle .rela.bss and
- .rela.plt. We must create both sections in
- create_dynamic_sections, because they must be created
- before the linker maps input sections to output
- sections. The linker does that before
- adjust_dynamic_symbol is called, and it is that
- function which decides whether anything needs to go
- into these sections. */
- strip = TRUE;
- }
- else
+ if (s->size != 0)
{
asection *target;
s->reloc_count = 0;
}
}
- else if (strncmp (name, ".got", 4) != 0)
+ else if (! CONST_STRNEQ (name, ".got")
+ && strcmp (name, ".dynbss") != 0)
{
/* It's not one of our sections, so don't allocate space. */
continue;
}
- if (strip)
+ if (s->size == 0)
{
+ /* If we don't need this section, strip it from the
+ output file. This is mostly to handle .rela.bss and
+ .rela.plt. We must create both sections in
+ create_dynamic_sections, because they must be created
+ before the linker maps input sections to output
+ sections. The linker does that before
+ adjust_dynamic_symbol is called, and it is that
+ function which decides whether anything needs to go
+ into these sections. */
s->flags |= SEC_EXCLUDE;
continue;
}
+ if ((s->flags & SEC_HAS_CONTENTS) == 0)
+ continue;
+
/* Allocate memory for the section contents. */
s->contents = (bfd_byte *) bfd_alloc (dynobj, s->size);
- if (s->contents == NULL && s->size != 0)
+ if (s->contents == NULL)
return FALSE;
}
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
- 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);
}
howto = howto_table + r_type;
- /* This is a final link. */
r_symndx = ELF32_R_SYM (rel->r_info);
h = NULL;
sym = NULL;
relocation = 0;
}
+ 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_VAX_GOT32:
&& ((r_type != R_VAX_PC8
&& r_type != R_VAX_PC16
&& r_type != R_VAX_PC32)
- || (!info->symbolic
- || !h->def_regular)))
+ || ((input_section->flags & SEC_CODE)
+ && (!info->symbolic
+ || (!h->def_regular && h->type != STT_SECTION)))))
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
if (name == NULL)
return FALSE;
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
+ BFD_ASSERT (CONST_STRNEQ (name, ".rela")
&& strcmp (bfd_get_section_name (input_bfd,
input_section),
name + 5) == 0);
{
asection *osec;
+ /* We are turning this relocation into one
+ against a section symbol. It would be
+ proper to subtract the symbol's value,
+ osec->vma, from the emitted reloc addend,
+ but ld.so expects buggy relocs. */
osec = sec->output_section;
indx = elf_section_data (osec)->dynindx;
- BFD_ASSERT (indx > 0);
+ if (indx == 0)
+ {
+ struct elf_link_hash_table *htab;
+ htab = elf_hash_table (info);
+ osec = htab->text_index_section;
+ indx = elf_section_data (osec)->dynindx;
+ }
+ BFD_ASSERT (indx != 0);
}
outrel.r_info = ELF32_R_INFO (indx, r_type);
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
- || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
+ || h == elf_hash_table (info)->hgot)
sym->st_shndx = SHN_ABS;
return TRUE;
elf_vax_adjust_dynamic_symbol
#define elf_backend_size_dynamic_sections \
elf_vax_size_dynamic_sections
+#define elf_backend_init_index_section _bfd_elf_init_1_index_section
#define elf_backend_relocate_section elf_vax_relocate_section
#define elf_backend_finish_dynamic_symbol \
elf_vax_finish_dynamic_symbol
projects / deliverable / binutils-gdb.git / blobdiff