Commit graph

13 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
71a39c98f8 Change plt stubs to have destination in r12.
This change is to support the new ELFv2 ABI, which uses the value in
r12 on function entry to calculate the got/toc pointer.

bfd/
	* elf64-ppc.c (build_plt_stub): Switch stubs to use r11 as base
	reg and r12 as destination.
	(ppc_build_one_stub): Likewise.
	(ppc64_elf_build_stubs): Likewise for glink.
ld/testsuite/
	* ld-powerpc/tls.s: Add proper .opd entry for _start.
	* ld-powerpc/tlstoc.s: Likewise.
	* ld-powerpc/relbrlt.d: Update for changed stubs.
	* ld-powerpc/tls.d: Update for changed stubs and _start .opd entry.
	* 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.d: Likewise.
	* ld-powerpc/tlstoc.g: Likewise.
	* ld-powerpc/tlstocso.d: Likewise.
	* ld-powerpc/tlstocso.g: Likewise.
	* ld-powerpc/tlstocso.r: Likewise.
2013-10-30 13:35:47 +10:30
Alan Modra
ed6b7ef4bc * ld-powerpc/powerpc.exp: Modify emulation option passed to ld
when little-endian.
	* ld-powerpc/apuinfo-nul.rd: Update for le output.
	* ld-powerpc/apuinfo.rd: Likewise.
	* ld-powerpc/plt1.d: Likewise.
	* ld-powerpc/relax.d: Likewise.
	* ld-powerpc/relaxr.d: Likewise.
	* ld-powerpc/sdadyn.d: Likewise.
	* ld-powerpc/tls.d: Likewise.
	* ld-powerpc/tls.g: Likewise.
	* ld-powerpc/tls.t: Likewise.
	* ld-powerpc/tls32.d: Likewise.
	* ld-powerpc/tls32.g: Likewise.
	* ld-powerpc/tls32.t: Likewise.
	* ld-powerpc/tlsexe.d: Likewise.
	* ld-powerpc/tlsexe.g: Likewise.
	* ld-powerpc/tlsexe.r: Likewise.
	* ld-powerpc/tlsexe.t: Likewise.
	* ld-powerpc/tlsexe32.d: Likewise.
	* ld-powerpc/tlsexe32.g: Likewise.
	* ld-powerpc/tlsexe32.r: Likewise.
	* ld-powerpc/tlsexe32.t: Likewise.
	* ld-powerpc/tlsexetoc.d: Likewise.
	* ld-powerpc/tlsexetoc.g: Likewise.
	* ld-powerpc/tlsexetoc.r: Likewise.
	* ld-powerpc/tlsexetoc.t: Likewise.
	* ld-powerpc/tlsmark.d: Likewise.
	* ld-powerpc/tlsmark32.d: Likewise.
	* ld-powerpc/tlsopt1.d: Likewise.
	* ld-powerpc/tlsopt1_32.d: Likewise.
	* ld-powerpc/tlsopt2.d: Likewise.
	* ld-powerpc/tlsopt2_32.d: Likewise.
	* ld-powerpc/tlsopt3.d: Likewise.
	* ld-powerpc/tlsopt3_32.d: Likewise.
	* ld-powerpc/tlsopt4.d: Likewise.
	* ld-powerpc/tlsopt4_32.d: Likewise.
	* ld-powerpc/tlsso.d: Likewise.
	* ld-powerpc/tlsso.g: Likewise.
	* ld-powerpc/tlsso.r: Likewise.
	* ld-powerpc/tlsso.t: Likewise.
	* ld-powerpc/tlsso32.d: Likewise.
	* ld-powerpc/tlsso32.g: Likewise.
	* ld-powerpc/tlsso32.r: Likewise.
	* ld-powerpc/tlsso32.t: Likewise.
	* ld-powerpc/tlstoc.d: Likewise.
	* ld-powerpc/tlstoc.g: Likewise.
	* ld-powerpc/tlstoc.t: Likewise.
	* ld-powerpc/tlstocso.d: Likewise.
	* ld-powerpc/tlstocso.g: Likewise.
	* ld-powerpc/tlstocso.t: Likewise.
	* ld-powerpc/tocopt.out: Likewise.
2012-10-29 09:25:53 +00:00
Alan Modra
bd518033e9 ld/
* emultempl/ppc64elf.em (ppc_add_stub_section): Align to 32 bytes.
ld/testsuite/
	* ld-powerpc/relbrlt.d: Update for stub alignment change.
	* ld-powerpc/tlsexe.g: Likewise.
	* ld-powerpc/tlsexe.r: Likewise.
	* ld-powerpc/tlsexetoc.g: Likewise.
	* ld-powerpc/tlsexetoc.r: Likewise.
	* ld-powerpc/tlsso.g: Likewise.
	* ld-powerpc/tlsso.r: Likewise.
2011-10-10 09:05:41 +00:00
Alan Modra
9df0ef5fe7 bfd/
* elf64-ppc.c (struct ppc_link_hash_table): Add plt_static_chain.
	(build_plt_stub): Add plt_static_chain param, don't load r11 if false.
	(build_tls_get_addr_stub): Likewise.
	(ppc_build_one_stub): Update calls to above.
	(ppc_size_one_stub): Adjust stub size.
	(ppc64_elf_size_stubs): Add plt_static_chain param, save to htab.
	* elf64-ppc.h (ppc64_elf_size_stubs): Update prototype.
ld/
	* emultempl/ppc64elf.em (plt_static_chain): New var.
	(gld${EMULATION_NAME}_after_allocation): Pass to ppc64_elf_size_stubs.
	(PARSE_AND_LIST_PROLOGUE, PARSE_AND_LIST_LONGOPTS,
	PARSE_AND_LIST_OPTIONS, PARSE_AND_LIST_ARGS_CASES): Handle
	--plt-static-chain and --no-plt-static-chain.
ld/testsuite/
	* ld-powerpc/tlsexe.d, * ld-powerpc/tlsexe.g. *ld-powerpc/tlsexe.r,
	* ld-powerpc/tlsexetoc.d, * ld-powerpc/tlsexetoc.g,
	* ld-powerpc/tlsexetoc.r, * ld-powerpc/tlsso.d,
	* ld-powerpc/tlstocso.d: Update for plt stub change.
2011-07-14 03:28:22 +00:00
Alan Modra
a7f2871e66 include/elf/
* ppc.h (DT_PPC_TLSOPT): Define.
	* ppc64.h (DT_PPC64_TLSOPT): Define.
bfd/
	* elf32-ppc.c (TLS_GET_ADDR_GLINK_SIZE): Define.
	(ADD_3_12_2, BEQLR, CMPWI_11_0, LWZ_11_3, LWZ_12_3): Define.
	(MR_0_3, MR_3_0): Define.
	(struct ppc_elf_link_hash_table): Add no_tls_get_addr_opt.
	(ppc_elf_select_plt_layout): Save emit_stub_syms param earlier.
	(ppc_elf_tls_setup): Add no_tls_get_addr_opt param and save to hash
	table.  Check for presense of __tls_get_addr_opt
	(allocate_dynrelocs): Increase glink entry size for __tls_get_addr.
	(ppc_elf_size_dynamic_sections): Add DT_PPC_TLS_OPT tag.
	(write_glink_stub): Add param p.
	(ppc_elf_relocate_section): Adjust write_glink_stub call.
	(ppc_elf_finish_dynamic_symbol): Emit special glink call stub for
	__tls_get_addr.
	* elf32-ppc.h (ppc_elf_tls_setup): Update prototype.
	* elf64-ppc.c (struct ppc_link_hash_table): Add no_tls_get_addr_opt.
	(ppc64_elf_tls_setup): Add no_tls_get_addr_opt param and save to hash
	table.  Check for presense of __tls_get_addr_opt.
	(ppc64_elf_size_dynamic_sections): Add DT_PPC64_TLS_OPT tag.
	(LD_R11_0R3, LD_R12_0R3, MR_R0_R3, CMPDI_R11_0, ADD_R3_R12_R13,
	BEQLR, MR_R3_R0, MFLR_R11, STD_R11_0R1, BCTRL, LD_R11_0R1,
	LD_R2_0R1, MTLR_R11): Define.
	(build_tls_get_addr_stub): New function.
	(ppc_build_one_stub): Call it.
	(ppc_size_one_stub): Add extra size for __tls_get_addr stub.
	(ppc64_elf_relocate_section): Don't change nop to ld 2,40(1) for
	__tls_get_addr plt call.
	* elf64-ppc.h (ppc64_elf_tls_setup): Update prototype.
binutils/
	* readelf.c (get_ppc_dynamic_type): Add TLSOPT.
	(get_ppc64_dynamic_type): Likewise.
ld/
	* emultempl/ppc32elf.em (no_tls_get_addr_opt): New var.
	(ppc_before_allocation): Pass to ppc_elf_tls_setup.
	(OPTION_NO_TLS_GET_ADDR_OPT): Define.  Redefine other options in
	terms of previous option.
	(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS): Add
	--no-tls-get-addr-optimize.
	(PARSE_AND_LIST_ARGS_CASES): Handle it.
	* emultempl/ppc64elf.em (no_tls_get_addr_opt): New var.
	(ppc_before_allocation): Pass to ppc64_elf_tls_setup.
	(OPTION_NO_TLS_GET_ADDR_OPT): Define.
	(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS): Add
	--no-tls-get-addr-optimize.
	(PARSE_AND_LIST_ARGS_CASES): Handle it.
ld/testsuite/
	* ld-powerpc/tlslib.s: Delete dot-symbol entry syms.  Add
	__tls_get_addr_opt.
	* ld-powerpc/tlslib32.s: Add __tls_get_addr_opt.
	* ld-powerpc/oldtlslib.s: New file, old-abi version of tlslib.s.
	* ld-powerpc/powerpc.exp: Build old-abi library and use it in
	two new link tests.
	* ld-powerpc/tlsexe.d: Update for new __tls_get_addr stub.
	* ld-powerpc/tlsexe.g, * ld-powerpc/tlsexe.r, *ld-powerpc/tlsexe32.d,
	* ld-powerpc/tlsexe32.g, * ld-powerpc/tlsexe32.r,
	* ld-powerpc/tlsexetoc.d, * ld-powerpc/tlsexetoc.g,
	* ld-powerpc/tlsexetoc.r: Likewise.
2009-09-21 11:51:02 +00:00
Alan Modra
ac2df442ac bfd/
* elf64-ppc.c (ADDI_R12_R12, LD_R11_0R2, LD_R2_0R2): Define.
	Update stub comments.
	(build_plt_stub): Build two variants, one without "addis".
	(ppc_build_one_stub): Build stubs without "addis" if possible.
	(ppc_size_one_stub): Size new stubs.
ld/testsuite/
	* ld-powerpc/relbrlt.s (.text.pad2): Adjust space.
	* ld-powerpc/relbrlt.d: Update.
	* ld-powerpc/tlsexe.d: Update.
	* ld-powerpc/tlsexe.g: Update.
	* ld-powerpc/tlsexe.r: Update.
	* ld-powerpc/tlsexetoc.d: Update.
	* ld-powerpc/tlsexetoc.g: Update.
	* ld-powerpc/tlsexetoc.r: Update.
	* ld-powerpc/tlsso.d: Update.
	* ld-powerpc/tlsso.g: Update.
	* ld-powerpc/tlsso.r: Update.
	* ld-powerpc/tlstocso.d: Update.
	* ld-powerpc/tlstocso.g: Update.
2007-08-13 00:20:59 +00:00
Alan Modra
85167a847e Adjust for dynamic sym changes. 2005-08-15 15:39:48 +00:00
Alan Modra
e7b679ebc0 * ld-powerpc/tlsexe.g: Update.
* ld-powerpc/tlsexe.r: Update.
	* ld-powerpc/tlsexetoc.g: Update.
	* ld-powerpc/tlsexetoc.r: Update.
2005-03-05 11:56:48 +00:00
Alan Modra
89b16ee576 * ld-powerpc/tlsexe.d: Update for changed handling of invalid LD
relocs.
	* ld-powerpc/tlsexe.g: Likewise.
	* ld-powerpc/tlsexe.r: Likewise.
	* ld-powerpc/tlsexe.t: Likewise.
2003-02-18 12:54:56 +00:00
Alan Modra
5502cb9fb4 * ld-powerpc/tlsexe.g: Update for 2003-02-14 elf64-ppc.c change. 2003-02-17 22:49:53 +00:00
Alan Modra
ac8b6cc0b0 * ld-powerpc/tlslib.s: Give .__tls_get_addr function type.
* ld-powerpc/tlsexe.d: Update for changed handling of (invalid) ld var
	in dynamic lib.
	* ld-powerpc/tlsexe.g: Likewise.
	* ld-powerpc/tlsexe.r: Likewise.
	* ld-powerpc/tlsexe.t: Likewise.
	* ld-powerpc/tlsexetoc.d: Likewise.
	* ld-powerpc/tlsexetoc.g: Likewise.
	* ld-powerpc/tlsexetoc.r: Likewise.
	* ld-powerpc/tlsexetoc.t: Likewise.
2003-02-09 04:37:04 +00:00
Alan Modra
266fb68310 new ppc64 tls tests 2003-02-04 14:52:11 +00:00