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* elf32-spu.c (spu_elf_object_p): New function.

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(elf_backend_object_p): Define.
	(build_stub): Correct second word of 8 byte overlay stubs.
	(spu_elf_relocate_section): Formatting.
This commit is contained in:
Alan Modra 2008-05-28 08:15:27 +00:00
parent ea56f9c264
commit 124b52c6d8
2 changed files with 67 additions and 25 deletions
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7
bfd/ChangeLog
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@ -1,3 +1,10 @@
2008-05-28 Alan Modra <amodra@bigpond.net.au>
* elf32-spu.c (spu_elf_object_p): New function.
(elf_backend_object_p): Define.
(build_stub): Correct second word of 8 byte overlay stubs.
(spu_elf_relocate_section): Formatting.
2008-05-24 Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
* elf.c (elfcore_write_register_note): New function.

85
bfd/elf32-spu.c
View file

@ -241,6 +241,44 @@ spu_elf_new_section_hook (bfd *abfd, asection *sec)
return _bfd_elf_new_section_hook (abfd, sec);
}
/* Set up overlay info for executables. */
static bfd_boolean
spu_elf_object_p (bfd *abfd)
{
if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0)
{
unsigned int i, num_ovl, num_buf;
Elf_Internal_Phdr *phdr = elf_tdata (abfd)->phdr;
Elf_Internal_Ehdr *ehdr = elf_elfheader (abfd);
Elf_Internal_Phdr *last_phdr = NULL;
for (num_buf = 0, num_ovl = 0, i = 0; i < ehdr->e_phnum; i++, phdr++)
if (phdr->p_type == PT_LOAD && (phdr->p_flags & PF_OVERLAY) != 0)
{
unsigned int j;
++num_ovl;
if (last_phdr == NULL
|| ((last_phdr->p_vaddr ^ phdr->p_vaddr) & 0x3ffff) != 0)
++num_buf;
last_phdr = phdr;
for (j = 1; j < elf_numsections (abfd); j++)
{
Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[j];
if (ELF_IS_SECTION_IN_SEGMENT_MEMORY (shdr, phdr))
{
asection *sec = shdr->bfd_section;
spu_elf_section_data (sec)->u.o.ovl_index = num_ovl;
spu_elf_section_data (sec)->u.o.ovl_buf = num_buf;
}
}
}
}
return TRUE;
}
/* Specially mark defined symbols named _EAR_* with BSF_KEEP so that
strip --strip-unneeded will not remove them. */
@ -965,7 +1003,7 @@ build_stub (struct spu_link_hash_table *htab,
bfd_put_32 (sec->owner, BRSL + ((val << 5) & 0x007fff80) + 75,
sec->contents + sec->size);
val = (dest & 0x3ffff) | (ovl << 14);
val = (dest & 0x3ffff) | (ovl << 18);
bfd_put_32 (sec->owner, val,
sec->contents + sec->size + 4);
}
@ -3916,6 +3954,7 @@ spu_elf_relocate_section (bfd *output_bfd,
bfd_reloc_status_type r;
bfd_boolean unresolved_reloc;
bfd_boolean warned;
enum _stub_type stub_type;
r_symndx = ELF32_R_SYM (rel->r_info);
r_type = ELF32_R_TYPE (rel->r_info);
@ -3996,35 +4035,30 @@ spu_elf_relocate_section (bfd *output_bfd,
/* If this symbol is in an overlay area, we may need to relocate
to the overlay stub. */
addend = rel->r_addend;
if (stubs)
if (stubs
&& (stub_type = needs_ovl_stub (h, sym, sec, input_section, rel,
contents, info)) != no_stub)
{
enum _stub_type stub_type;
unsigned int ovl = 0;
struct got_entry *g, **head;
stub_type = needs_ovl_stub (h, sym, sec, input_section, rel,
contents, info);
if (stub_type != no_stub)
{
unsigned int ovl = 0;
struct got_entry *g, **head;
if (stub_type != nonovl_stub)
ovl = (spu_elf_section_data (input_section->output_section)
->u.o.ovl_index);
if (stub_type != nonovl_stub)
ovl = (spu_elf_section_data (input_section->output_section)
->u.o.ovl_index);
if (h != NULL)
head = &h->got.glist;
else
head = elf_local_got_ents (input_bfd) + r_symndx;
if (h != NULL)
head = &h->got.glist;
else
head = elf_local_got_ents (input_bfd) + r_symndx;
for (g = *head; g != NULL; g = g->next)
if (g->addend == addend && (g->ovl == ovl || g->ovl == 0))
break;
if (g == NULL)
abort ();
for (g = *head; g != NULL; g = g->next)
if (g->addend == addend && (g->ovl == ovl || g->ovl == 0))
break;
if (g == NULL)
abort ();
relocation = g->stub_addr;
addend = 0;
}
relocation = g->stub_addr;
addend = 0;
}
r = _bfd_final_link_relocate (howto,
@ -4356,6 +4390,7 @@ spu_elf_modify_program_headers (bfd *abfd, struct bfd_link_info *info)
#define elf_backend_relocate_section spu_elf_relocate_section
#define elf_backend_symbol_processing spu_elf_backend_symbol_processing
#define elf_backend_link_output_symbol_hook spu_elf_output_symbol_hook
#define elf_backend_object_p spu_elf_object_p
#define bfd_elf32_new_section_hook spu_elf_new_section_hook
#define bfd_elf32_bfd_link_hash_table_create spu_elf_link_hash_table_create