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* elf64-ppc.c (CROR_151515, CROR_313131): Define. 

(ppc64_elf_relocate_section): Use them.  Don't look for plt calls
	on R_PPC64_ADDR24 relocs.  Require a nop or no link reg on plt
	call branches.  Correct undefined weak destination.
	(ppc64_elf_func_desc_adjust): Always create at least one blr in
	.sfpr, and correct case where either only savef* or restf* is
	needed.

	Long branch stubs, multiple stub sections.
	* elf64-ppc.h (ppc64_elf_setup_section_lists): Declare.
	(ppc64_elf_next_input_section): Declare.
	* elf64-ppc.c: Move linker-only prototypes.
	(STUB_SUFFIX): Define.
	(enum ppc_stub_type): New.
	(struct ppc_stub_hash_entry): New.
	(struct ppc_branch_hash_entry): New.
	(struct ppc_link_hash_entry): Add stub_cache, oh.
	(struct ppc_link_hash_table): Add stub_hash_table etc.  Remove
	sstub.  Add sbrlt, srelbrlt, has_14bit_branch, stub_iteration.
	Rename plt_overflow to stub_error.
	(ppc_stub_hash_lookup): Define.
	(ppc_branch_hash_lookup): Define.
	(stub_hash_newfunc): New function.
	(branch_hash_newfunc): New function.
	(link_hash_newfunc): Init new fields.
	(ppc64_elf_link_hash_table_create): Likewise.
	(ppc64_elf_link_hash_table_free): New function.
	(ppc_stub_name): New function.
	(ppc_get_stub_entry): New function.
	(ppc_add_stub): New function.
	(create_linkage_sections): Use bfd_make_section_anyway.  Create
	.branch_lt and .rela.branch_lt sections.  Don't create .stub.
	(ppc64_elf_check_relocs): Set has_14bit_branch on R_PPC64_REL14*,
	and set up for plt call stubs.  Link func and func desc syms.
	(ppc64_elf_gc_sweep_hook): Handle REL14* as per REL24.
	(func_desc_adjust): Avoid hash lookup when func desc sym available
	via shortcut, and set links when processing.
	(ppc64_elf_hide_symbol): Likewise.
	(allocate_dynrelocs): Don't allocate stub section here.
	(ppc64_elf_size_dynamic_sections): Handle sbrlt and srelbrlt.
	Remove sstub code.
	(ppc_type_of_stub): New function.
	(build_one_stub): Delete.
	(ppc_build_one_stub): New function.
	(ppc_size_one_stub): New function.
	(ppc64_elf_setup_section_lists): New function.
	(ppc64_elf_next_input_section): New function.
	(group_sections): New function.
	(get_local_syms): New function.
	(ppc64_elf_size_stubs): Rewrite.
	(ppc64_elf_build_stubs): Rewrite.
	(ppc64_elf_relocate_section): Look up stub entry for REL24
	relocs.  Don't propagate REL14* to dynamic objects.  Look for long
	branch stubs if REL14* or REL24 relocs won't reach.
	(bfd_elf64_bfd_link_hash_table_free): Define.
This commit is contained in:
Alan Modra 2002-05-01 02:34:20 +00:00
parent 7d4a12d20f
commit 721956f4fe
3 changed files with 1648 additions and 369 deletions
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58
bfd/ChangeLog
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@ -1,3 +1,61 @@
2002-05-01 Alan Modra <amodra@bigpond.net.au>
* elf64-ppc.c (CROR_151515, CROR_313131): Define.
(ppc64_elf_relocate_section): Use them. Don't look for plt calls
on R_PPC64_ADDR24 relocs. Require a nop or no link reg on plt
call branches. Correct undefined weak destination.
(ppc64_elf_func_desc_adjust): Always create at least one blr in
.sfpr, and correct case where either only savef* or restf* is
needed.
Long branch stubs, multiple stub sections.
* elf64-ppc.h (ppc64_elf_setup_section_lists): Declare.
(ppc64_elf_next_input_section): Declare.
* elf64-ppc.c: Move linker-only prototypes.
(STUB_SUFFIX): Define.
(enum ppc_stub_type): New.
(struct ppc_stub_hash_entry): New.
(struct ppc_branch_hash_entry): New.
(struct ppc_link_hash_entry): Add stub_cache, oh.
(struct ppc_link_hash_table): Add stub_hash_table etc. Remove
sstub. Add sbrlt, srelbrlt, has_14bit_branch, stub_iteration.
Rename plt_overflow to stub_error.
(ppc_stub_hash_lookup): Define.
(ppc_branch_hash_lookup): Define.
(stub_hash_newfunc): New function.
(branch_hash_newfunc): New function.
(link_hash_newfunc): Init new fields.
(ppc64_elf_link_hash_table_create): Likewise.
(ppc64_elf_link_hash_table_free): New function.
(ppc_stub_name): New function.
(ppc_get_stub_entry): New function.
(ppc_add_stub): New function.
(create_linkage_sections): Use bfd_make_section_anyway. Create
.branch_lt and .rela.branch_lt sections. Don't create .stub.
(ppc64_elf_check_relocs): Set has_14bit_branch on R_PPC64_REL14*,
and set up for plt call stubs. Link func and func desc syms.
(ppc64_elf_gc_sweep_hook): Handle REL14* as per REL24.
(func_desc_adjust): Avoid hash lookup when func desc sym available
via shortcut, and set links when processing.
(ppc64_elf_hide_symbol): Likewise.
(allocate_dynrelocs): Don't allocate stub section here.
(ppc64_elf_size_dynamic_sections): Handle sbrlt and srelbrlt.
Remove sstub code.
(ppc_type_of_stub): New function.
(build_one_stub): Delete.
(ppc_build_one_stub): New function.
(ppc_size_one_stub): New function.
(ppc64_elf_setup_section_lists): New function.
(ppc64_elf_next_input_section): New function.
(group_sections): New function.
(get_local_syms): New function.
(ppc64_elf_size_stubs): Rewrite.
(ppc64_elf_build_stubs): Rewrite.
(ppc64_elf_relocate_section): Look up stub entry for REL24
relocs. Don't propagate REL14* to dynamic objects. Look for long
branch stubs if REL14* or REL24 relocs won't reach.
(bfd_elf64_bfd_link_hash_table_free): Define.
2002-04-30 Mark Mitchell <mark@codesourcery.com>
* bfd/config.bfd: Add support for powerpc-*-windiss.

1945
bfd/elf64-ppc.c
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14
bfd/elf64-ppc.h
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@ -17,6 +17,14 @@ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
boolean ppc64_elf_set_toc PARAMS ((bfd *, struct bfd_link_info *));
boolean ppc64_elf_size_stubs PARAMS ((bfd *, struct bfd_link_info *, int *));
boolean ppc64_elf_build_stubs PARAMS ((bfd *, struct bfd_link_info *));
boolean ppc64_elf_set_toc
PARAMS ((bfd *, struct bfd_link_info *));
int ppc64_elf_setup_section_lists
PARAMS ((bfd *, struct bfd_link_info *));
void ppc64_elf_next_input_section
PARAMS ((bfd *, struct bfd_link_info *, asection *));
boolean ppc64_elf_size_stubs
PARAMS ((bfd *, bfd *, struct bfd_link_info *, bfd_signed_vma,
asection *(*) (const char *, asection *), void (*) (void)));
boolean ppc64_elf_build_stubs
PARAMS ((struct bfd_link_info *));