Commit graph

2 commits

Author SHA1 Message Date
Alan Modra
a27e685fa0 Align .TOC. for PowerPC64
This change, with prerequisite 0e5fabeb, provides a toc base aligned
to 256 bytes rather than 8 bytes.  This is necessary for a minor gcc
optimisation, allowing use of d-form instructions to correctly access
toc-relative items larger than 8 bytes.

bfd/
	* elf64-ppc.c (TOC_BASE_ALIGN): Define.
	(ppc64_elf_next_toc_section): Align multi-got toc base.
	(ppc64_elf_set_toc): Likewise initial toc base and .TOC. symbol.
ld/
	* emulparams/elf64ppc.sh (GOT): Align.
ld/testsuite/
	* ld-powerpc/ambiguousv1b.d: Update for aligned .got.
	* ld-powerpc/defsym.d: Likewise.
	* ld-powerpc/elfv2-2exe.d: Likewise.
	* ld-powerpc/elfv2exe.d: Likewise.
	* ld-powerpc/elfv2so.d: Likewise.
	* ld-powerpc/relbrlt.d: Likewise.
	* ld-powerpc/tls.g: Likewise.
	* ld-powerpc/tlsexe.d: Likewise.
	* ld-powerpc/tlsexe.g: Likewise.
	* ld-powerpc/tlsexe.r: Likewise.
	* ld-powerpc/tlsexetoc.d: Likewise.
	* ld-powerpc/tlsexetoc.g: Likewise.
	* ld-powerpc/tlsexetoc.r: Likewise.
	* ld-powerpc/tlsso.d: Likewise.
	* ld-powerpc/tlsso.g: Likewise.
	* ld-powerpc/tlsso.r: Likewise.
	* ld-powerpc/tlstoc.g: Likewise.
	* ld-powerpc/tlstocso.d: Likewise.
	* ld-powerpc/tlstocso.g: Likewise.
	* ld-powerpc/tlstocso.r: Likewise.
	* ld-powerpc/tocopt.d: Likewise.
	* ld-powerpc/tocopt2.d: Likewise.
	* ld-powerpc/tocopt3.d: Likewise.
	* ld-powerpc/tocopt4.d: Likewise.
	* ld-powerpc/tocopt5.d: Likewise.
2015-04-23 09:49:19 +09:30
Alan Modra
45965137be Support R_PPC64_ADDR64_LOCAL
This adds support for "func@localentry", an expression that returns the
ELFv2 local entry point address of function "func".  I've excluded
dynamic relocation support because that obviously would require glibc
changes.

include/elf/
	* ppc64.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define.
bfd/
	* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_ADDR64_LOCAL entry.
	(ppc64_elf_reloc_type_lookup): Support R_PPC64_ADDR64_LOCAL.
	(ppc64_elf_check_relocs): Likewise.
	(ppc64_elf_relocate_section): Likewise.
	* Add BFD_RELOC_PPC64_ADDR64_LOCAL.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
gas/
	* config/tc-ppc.c (ppc_elf_suffix): Support @localentry.
	(md_apply_fix): Support R_PPC64_ADDR64_LOCAL.
ld/testsuite/
	* ld-powerpc/elfv2-2a.s, ld-powerpc/elfv2-2b.s: New files.
	* ld-powerpc/elfv2-2exe.d, ld-powerpc/elfv2-2so.d: New files.
	* ld-powerpc/powerpc.exp: Run new test.
elfcpp/
	* powerpc.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define.
gold/
	* powerpc.cc (Target_powerpc::Scan::local, global): Support
	R_PPC64_ADDR64_LOCAL.
	(Target_powerpc::Relocate::relocate): Likewise.
2014-03-05 19:57:39 +10:30