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tile: Mark __tls_get_addr in gc_mark_hook

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TLS_GD_CALL relocations implicitly reference __tls_get_addr.  Since
elf_gc_mark_hook is called before check_relocs now, we need to call
_bfd_generic_link_add_one_symbol to mark __tls_get_addr for garbage
collection.

	* elf32-tilepro.c (tilepro_elf_gc_mark_hook): Call
	_bfd_generic_link_add_one_symbol to mark __tls_get_addr.
	* elfxx-tilegx.c (tilegx_elf_gc_mark_hook): Likewise.
This commit is contained in:
H.J. Lu 2017-10-18 15:46:57 -07:00
parent 8dfa5d5a63
commit 8e35405853
3 changed files with 26 additions and 4 deletions
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6
bfd/ChangeLog
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@ -1,3 +1,9 @@
2017-10-18 H.J. Lu <hongjiu.lu@intel.com>
* elf32-tilepro.c (tilepro_elf_gc_mark_hook): Call
_bfd_generic_link_add_one_symbol to mark __tls_get_addr.
* elfxx-tilegx.c (tilegx_elf_gc_mark_hook): Likewise.
2017-10-17 H.J. Lu <hongjiu.lu@intel.com>
* elf32-microblaze.c (microblaze_elf_check_relocs): Check for

12
bfd/elf32-tilepro.c
View File

@ -1864,6 +1864,8 @@ tilepro_elf_gc_mark_hook (asection *sec,
dealing with TLS optimization, ought to be !bfd_link_executable (info). */
if (bfd_link_pic (info))
{
struct bfd_link_hash_entry *bh;
switch (ELF32_R_TYPE (rel->r_info))
{
case R_TILEPRO_TLS_GD_CALL:
@ -1872,8 +1874,14 @@ tilepro_elf_gc_mark_hook (asection *sec,
on this reloc, so the real symbol and section will be
gc marked when processing the other reloc. That lets
us handle __tls_get_addr here. */
h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
FALSE, FALSE, TRUE);
bh = NULL;
if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
"__tls_get_addr", 0,
bfd_und_section_ptr,
0, NULL, FALSE,
FALSE, &bh))
return NULL;
h = (struct elf_link_hash_entry *) bh;
BFD_ASSERT (h != NULL);
h->mark = 1;
if (h->u.weakdef != NULL)

12
bfd/elfxx-tilegx.c
View File

@ -2103,6 +2103,8 @@ tilegx_elf_gc_mark_hook (asection *sec,
dealing with TLS optimization, ought to be !bfd_link_executable (info). */
if (bfd_link_pic (info))
{
struct bfd_link_hash_entry *bh;
switch (TILEGX_ELF_R_TYPE (rel->r_info))
{
case R_TILEGX_TLS_GD_CALL:
@ -2111,8 +2113,14 @@ tilegx_elf_gc_mark_hook (asection *sec,
on this reloc, so the real symbol and section will be
gc marked when processing the other reloc. That lets
us handle __tls_get_addr here. */
h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
FALSE, FALSE, TRUE);
bh = NULL;
if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
"__tls_get_addr", 0,
bfd_und_section_ptr,
0, NULL, FALSE,
FALSE, &bh))
return NULL;
h = (struct elf_link_hash_entry *) bh;
BFD_ASSERT (h != NULL);
h->mark = 1;
if (h->u.weakdef != NULL)