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2 Commits

Author SHA1 Message Date
Alan Modra
721956f4fe * 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.
 2002-05-01 02:34:20 +00:00
Alan Modra
5d1634d792 * elflink.c (_bfd_elf_create_dynamic_sections): Don't set SEC_CODE 
when plt_not_loaded.
	* elf64-ppc.c (ppc64_elf_create_dynamic_sections): No need to
	clear .plt SEC_CODE here.  Create .stub and correct .glink flags.
	(PLT_INITIAL_ENTRY_SIZE): Set to 24.
	(ppc64_elf_glink_code): Delete.
	(PPC64_ELF_GLINK_SIZE): Delete.
	(ADDIS_R12_R2, STD_R2_40R1, LD_R11_0R12, LD_R2_0R12, MTCTR_R11,
	BCTR, ADDIS_R12_R12_1, LD_R2_40R1, NOP, LI_R0_0, B_DOT, LIS_R0_0,
	ORI_R0_R0_0): Define.
	(PLT_CALL_STUB_SIZE, GLINK_CALL_STUB_SIZE): Define.
	(struct ppc_link_hash_table): Add sstub and plt_overflow.
	(ppc64_elf_link_hash_table_create): Init them.
	(ppc64_elf_check_relocs <R_PPC64_REL24>): Refcount .plt entry.
	Don't copy to shared lib.
	(ppc64_elf_check_relocs): Call bfd_set_error on errors.
	(ppc64_elf_gc_sweep_hook <R_PPC64_REL24>): Sweep plt refcount.
	(allocate_dynrelocs <plt>): Don't change function sym here.  Make
	room for .stub and .glink code.
	(ppc64_elf_size_dynamic_sections): Handle .stub.  Make entry for
	DT_PPC64_GLINK.
	(ppc64_elf_final_link): Rename to ppc64_elf_set_toc.  Don't call
	bfd_elf64_bfd_final_link.
	(bfd_elf64_bfd_final_link): Don't define.
	(ppc64_elf_size_stubs): New.
	(build_plt_stub): New.
	(build_one_stub): New.
	(ppc64_elf_build_stubs): New.
	(ppc64_elf_relocate_section <toc relocs>): Remove assert.
	(ppc64_elf_relocate_section): Don't copy R_PPC64_REL24 relocs.
	(ppc64_elf_finish_dynamic_symbol): Don't build stubs here.  Set
	DT_PPC64_GLINK entry.  Tweak DT_PLTGOT, DT_JMPREL, DT_PLTRELSZ in
	case output sections not separate.  Adjust DT_RELASZ to not
	include plt relocs.  Set reserved got entry.  Set got and plt
	entry size.
	(elf_backend_got_header_size): Set to 8.
	* elf64-ppc.h: New file.
 2002-01-16 05:50:03 +00:00