Alan Modra
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066f4018ae
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PowerPC64 GOT indirect to GOT relative optimisation
This implements an optimisation that converts sequences like
addis r9,r2,sym@got@ha
ld r3,sym@got@l(r9)
to
addis r9,r2,sym@toc@ha
addi r3,r9,sym@toc@l
when "sym" is locally defined and can't be overridden.
bfd/
* elf64-ppc.c (struct ppc64_elf_obj_tdata): Add has_gotrel.
(struct _ppc64_elf_section_data): Likewise.
(ppc64_elf_check_relocs): Set above fields.
(ppc64_elf_edit_toc): Add a pass over GOT relocs.
(ppc64_elf_relocate_section): Edit GOT indirect to GOT relative
when possible.
ld/
* testsuite/ld-powerpc/elfv2exe.d: Update.
* testsuite/ld-powerpc/elfv2so.d: Update.
* testsuite/ld-powerpc/tocopt.d: Update.
* testsuite/ld-powerpc/tocopt.s: Update.
* testsuite/ld-powerpc/tocopt5.d: Update.
* testsuite/ld-powerpc/tocopt5.s: Update.
* testsuite/ld-powerpc/tocopt7.d: Update.
* testsuite/ld-powerpc/tocopt7.s: Update.
* testsuite/ld-powerpc/tocopt8.d: Update.
* testsuite/ld-powerpc/tocopt8.s: Update.
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2019-04-30 22:09:54 +09:30 |
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