/* BFD back-end for National Semiconductor's CR16 ELF
- Copyright 2007, 2008, 2009 Free Software Foundation, Inc.
+ Copyright 2007, 2008, 2009, 2010, 2012 Free Software Foundation, Inc.
Written by M R Swami Reddy.
This file is part of BFD, the Binary File Descriptor library.
linking with -Bsymbolic. We store the information in a field
extending the regular ELF linker hash table. */
-struct elf32_cr16_link_hash_entry {
+struct elf32_cr16_link_hash_entry
+{
/* The basic elf link hash table entry. */
struct elf_link_hash_entry root;
bfd_vma value;
};
-/* We derive a hash table from the main elf linker hash table so
- we can store state variables and a secondary hash table without
- resorting to global variables. */
-struct elf32_cr16_link_hash_table {
- /* The main hash table. */
- struct elf_link_hash_table root;
-
- /* A hash table for static functions. We could derive a new hash table
- instead of using the full elf32_cr16_link_hash_table if we wanted
- to save some memory. */
- struct elf32_cr16_link_hash_table *static_hash_table;
-
- /* Random linker state flags. */
-#define CR16_HASH_ENTRIES_INITIALIZED 0x1
- char flags;
-};
-
-/* For CR16 linker hash table. */
-
-/* Get the CR16 ELF linker hash table from a link_info structure. */
-
-#define elf32_cr16_hash_table(p) \
- ((struct elf32_cr16_link_hash_table *) ((p)->hash))
-
-#define elf32_cr16_link_hash_traverse(table, func, info) \
- (elf_link_hash_traverse \
- (&(table)->root, \
- (bfd_boolean (*) ((struct elf_link_hash_entry *, void *))) (func), (info)))
-
/* cr16_reloc_map array maps BFD relocation enum into a CRGAS relocation type. */
struct cr16_reloc_map
unsigned short r_type = howto->type;
bfd_byte *hit_data = contents + offset;
bfd_vma reloc_bits, check, Rvalue1;
-
bfd * dynobj;
- bfd_vma * local_got_offsets;
- asection * sgot;
dynobj = elf_hash_table (info)->dynobj;
- local_got_offsets = elf_local_got_offsets (input_bfd);
-
- sgot = NULL;
-
switch (r_type)
{
unsigned int sec_shndx;
bfd_byte *contents;
Elf_Internal_Rela *irel, *irelend;
- Elf_Internal_Rela *irelalign;
bfd_vma toaddr;
Elf_Internal_Sym *isym;
Elf_Internal_Sym *isymend;
contents = elf_section_data (sec)->this_hdr.contents;
- /* The deletion must stop at the next ALIGN reloc for an aligment
- power larger than the number of bytes we are deleting. */
- irelalign = NULL;
toaddr = sec->size;
irel = elf_section_data (sec)->relocs;
struct elf_link_hash_entry **sym_hashes;
Elf_Internal_Rela *rel, *relend;
- if (info->relocatable)
- return TRUE;
-
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
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 (sec != NULL && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
if (info->relocatable)
continue;
static struct bfd_link_hash_table *
elf32_cr16_link_hash_table_create (bfd *abfd)
{
- struct elf32_cr16_link_hash_table *ret;
- bfd_size_type amt = sizeof (struct elf32_cr16_link_hash_table);
+ struct elf_link_hash_table *ret;
+ bfd_size_type amt = sizeof (struct elf_link_hash_table);
- ret = (struct elf32_cr16_link_hash_table *) bfd_malloc (amt);
- if (ret == (struct elf32_cr16_link_hash_table *) NULL)
+ ret = (struct elf_link_hash_table *) bfd_malloc (amt);
+ if (ret == (struct elf_link_hash_table *) NULL)
return NULL;
- if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
+ if (!_bfd_elf_link_hash_table_init (ret, abfd,
elf32_cr16_link_hash_newfunc,
- sizeof (struct elf32_cr16_link_hash_entry)))
+ sizeof (struct elf32_cr16_link_hash_entry),
+ GENERIC_ELF_DATA))
{
free (ret);
return NULL;
}
- ret->flags = 0;
- amt = sizeof (struct elf_link_hash_table);
- ret->static_hash_table
- = (struct elf32_cr16_link_hash_table *) bfd_malloc (amt);
- if (ret->static_hash_table == NULL)
- {
- free (ret);
- return NULL;
- }
-
- if (!_bfd_elf_link_hash_table_init (&ret->static_hash_table->root, abfd,
- elf32_cr16_link_hash_newfunc,
- sizeof (struct elf32_cr16_link_hash_entry)))
- {
- free (ret->static_hash_table);
- free (ret);
- return NULL;
- }
- return &ret->root.root;
+ return &ret->root;
}
/* Free an cr16 ELF linker hash table. */
static void
elf32_cr16_link_hash_table_free (struct bfd_link_hash_table *hash)
{
- struct elf32_cr16_link_hash_table *ret
- = (struct elf32_cr16_link_hash_table *) hash;
+ struct elf_link_hash_table *ret
+ = (struct elf_link_hash_table *) hash;
- _bfd_generic_link_hash_table_free
- ((struct bfd_link_hash_table *) ret->static_hash_table);
_bfd_generic_link_hash_table_free
((struct bfd_link_hash_table *) ret);
}
static asection *
elf32_cr16_gc_mark_hook (asection *sec,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- Elf_Internal_Rela *rel ATTRIBUTE_UNUSED,
+ 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 (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:
- 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 (!h->non_got_ref)
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
copy the initial value out of the dynamic object and into the
runtime process image. We need to remember the offset into the
.rela.bss section we are going to use. */
- if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
+ if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
{
asection * srel;
projects / deliverable / binutils-gdb.git / blobdiff