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1) _SDA_BASE_ and _SDA2_BASE_ and defined automatically, in a similar
manner to the way _GLOBAL_OFFSET_TABLE_ is handled. It's a little
more complicated to remove the symbols because _SDA_BASE_ needs to
be there if either .sdata or .sbss is present, and similarly for
_SDA2_BASE.
2) The linker created .sdata and .sdata2 sections used for
R_PPC_EMB_SDAI16 and R_PPC_EMB_SDA2I16 pointers are created early.
Nowadays we strip unneeded sections from the output, so it isn't
necessary to delay creating the sections.
3) The output section for targets of various SDA relocs is now checked
as per the ABI(s). We previously allowed .sdata.foo and similar,
most likely because at some stage we were checking input sections.
Also, the patch fixes a long-standing bug in size_input_sections
that affects the values of symbols defined in stripped input
sections.
PR 16952
bfd/
* elf32-ppc.c (ppc_elf_create_linker_section): Move earlier.
Remove redundant setting of htab->elf.dynobj. Don't align.
Define .sdata symbols using _bfd_elf_define_linkage_sym.
(ppc_elf_create_glink): Call ppc_elf_create_linker_section.
(create_sdata_sym): Delete.
(elf_allocate_pointer_linker_section): Rename from
elf_create_pointer_linker_section. Align section.
(ppc_elf_check_relocs): Don't call ppc_elf_creat_linker_section
directly here, or create_sdata_sym. Set ref_regular on _SDA_BASE_
and _SDA2_BASE_.
(ppc_elf_size_dynamic_sections): Remove ATTRIBUTE_UNUSED on param.
Remove unnecessary tests on _SDA_BASE_ sym.
(maybe_strip_sdasym, ppc_elf_maybe_strip_sdata_syms): New functions.
(ppc_elf_relocate_section): Tighten SDA reloc symbol section checks.
* elf32-ppc.h (ppc_elf_set_sdata_syms): Delete.
(ppc_elf_maybe_strip_sdata_syms): Declare.
ld/
* emulparams/elf32ppccommon.sh (_SDA_BASE_, _SDA2_BASE_): Delete.
* emultempl/ppc32elf.em (ppc_before_allocation): Call
ppc_elf_maybe_strip_sdata_syms.
* ldlang.c (size_input_section): Correct output_offset value
for excluded input sections.
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The Linux kernel builds modules using ld -r. These might need the
ppc476 workaround, so enable it for ld -r if sections have sufficient
alignment to tell location within a page.
bfd/
* elf32-ppc.c (ppc_elf_relax_section): Enable ppc476 workaround
for ld -r, when code sections are sufficiently aligned.
* elf32-ppc.h (struct ppc_elf_params): Delete pagesize. Add
pagesize_p2.
ld/
* emultempl/ppc32elf.em (pagesize): New static var.
(ppc_after_open_output): Set params.pagesize_p2 from pagesize.
(PARSE_AND_LIST_ARGS_CASES): Adjust to use pagesize.
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This implements a work-around for an icache bug on 476 that can cause
execution of stale instructions when control falls through from one
page to the next. The idea is to prevent such fall-through by
replacing the last instruction on a page with a branch to a patch
area containing the instruction, then branch to the next page.
The patch also fixes a number of bugs in the existing support for long
branch trampolines.
bfd/
* elf32-ppc.c (struct ppc_elf_link_hash_table): Add params.
Delete emit_stub_syms, no_tls_get_addr_opt. Update all uses.
(ppc_elf_link_params): New function.
(ppc_elf_create_glink): Align .glink to 64 bytes for ppc476
workaround.
(ppc_elf_select_plt_layout): Remove plt_style and emit_stub_syms
parameters. Use htab->params instead.
(ppc_elf_tls_setup): Remove no_tls_get_addr_opt parameter.
(ppc_elf_size_dynamic_sections): Align __glink_PLTresolve to
64 bytes for ppc476 workaround.
(struct ppc_elf_relax_info): New.
(ppc_elf_relax_section): Exclude linker created sections and
those too small to hold one instruction. Don't add another
branch around trampolines on later relax passes. Don't
generate trampolines for undefined symbols when !relocatable,
nor for plugin symbols. Allocate space for ppc476 workaround
patch area. Free fixups on error return path.
(ppc_elf_relocate_section): Handle ppc476 workaround patching.
* elf32-ppc.h (struct ppc_elf_params): New.
(ppc_elf_select_plt_layout, ppc_elf_tls_setup): Update prototype.
(ppc_elf_link_params): Declare.
* section.c (SEC_INFO_TYPE_TARGET): Define.
* bfd-in2.h: Regenerate.
ld/
* emultempl/ppc32elf.em (no_tls_get_addr_opt, emit_stub_syms)
plt_style): Delete. Adjust all refs to instead use..
(params): ..this. New variable.
(ppc_after_open_output): New function. Tweak params and pass to
ppc_elf_link_params.
(ppc_after_open): Adjust ppc_elf_select_plt_layout call.
(ppc_before_allocation): Adjust ppc_elf_tls_setup call. Enable
relaxation for ppc476 workaround.
(PARSE_AND_LIST_*): Add --{no-,}ppc476-workaround support.
(LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS): Define.
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* elf32-ppc.h (has_vle_insns, is_ppc_vle): Delete.
(has_tls_reloc, has_tls_get_addr_call): Move back to..
* elf32-ppc.c: ..here.
(ppc_elf_section_flags, elf_backend_section_flags): Delete.
(ppc_elf_modify_segment_map): Use ELF sh_flags to detect VLE sections.
opcodes/
* ppc-dis.c: Don't include elf32-ppc.h, do include elf/ppc.h.
(get_powerpc_dialect): Detect VLE sections from ELF sh_flags.
ld/testsuite/
* ld-powerpc/vle.ld: New.
* ld-powerpc/powerpc.exp (vle reloc tests): Link using vle.ld.
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* elf32-ppc.c (has_tls_reloc, has_tls_get_addr_call, has_vle_insns,
is_ppc_vle): Move to..
* elf32-ppc.h: ..here, making is_ppc_vle a macro.
opcodes/
* ppc_dis.c: Don't include elf/ppc.h.
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2012-05-14 Catherine Moore <clm@codesourcery.com>
* NEWS: Mention PowerPC VLE port.
2012-05-14 James Lemke <jwlemke@codesourcery.com>
Catherine Moore <clm@codesourcery.com>
bfd/
* bfd.c (bfd_lookup_section_flags): Add section parm.
* ecoff.c (bfd_debug_section): Remove flag_info initializer.
* elf-bfd.h (bfd_elf_section_data): Move in section_flag_info.
(bfd_elf_lookup_section_flags): Add section parm.
* elf32-ppc.c (is_ppc_vle): New function.
(ppc_elf_modify_segment_map): New function.
(elf_backend_modify_segment_map): Define.
(has_vle_insns): New define.
* elf32-ppc.h (ppc_elf_modify_segment_map): Declare.
* elflink.c (bfd_elf_lookup_section_flags): Add return value & parm.
Move in logic to omit / include a section.
* libbfd-in.h (bfd_link_info): Add section parm.
(bfd_generic_lookup_section_flags): Likewise.
* reloc.c (bfd_generic_lookup_section_flags): Likewise.
* section.c (bfd_section): Move out section_flag_info.
(BFD_FAKE_SECTION): Remove flag_info initializer.
* targets.c (_bfd_lookup_section_flags): Add section parm.
2012-05-14 Catherine Moore <clm@codesourcery.com>
bfd/
* archures.c (bfd_mach_ppc_vle): New.
* bfd-in2.h: Regenerated.
* cpu-powerpc.c (bfd_powerpc_archs): New entry for vle.
* elf32-ppc.c (split16_format_type): New enumeration.
(ppc_elf_vle_split16): New function.
(HOWTO): Add entries for R_PPC_VLE relocations.
(ppc_elf_reloc_type_lookup): Handle PPC_VLE relocations.
(ppc_elf_section_flags): New function.
(ppc_elf_lookup_section_flags): New function.
(ppc_elf_section_processing): New function.
(ppc_elf_check_relocs): Handle PPC_VLE relocations.
(ppc_elf_relocation_section): Likewise.
(elf_backend_lookup_section_flags_hook): Define.
(elf_backend_section_flags): Define.
(elf_backend_section_processing): Define.
* elf32-ppc.h (ppc_elf_section_processing): Declare.
* libbfd.h: Regenerated.
* reloc.c (BFD_RELOC_PPC_VLE_REL8, BFD_RELOC_PPC_VLE_REL15,
BFD_RELOC_PPC_VLE_REL24, BFD_RELOC_PPC_VLE_LO16A,
BFD_RELOC_PPC_VLE_LO16D, BFD_RELOC_PPC_VLE_HI16A,
BFD_RELOC_PPC_VLE_HI16D, BFD_RELOC_PPC_VLE_HA16A,
BFD_RELOC_PPC_VLE_HA16D, BFD_RELOC_PPC_VLE_SDA21,
BFD_RELOC_PPC_VLE_SDA21_LO, BFD_RELOC_PPC_VLE_SDAREL_LO16A,
BFD_RELOC_PPC_VLE_SDAREL_LO16D, BFD_RELOC_PPC_VLE_SDAREL_HI16A,
BFD_RELOC_PPC_VLE_SDAREL_HI16D, BFD_RELOC_PPC_VLE_SDAREL_HA16A,
BFD_RELOC_PPC_VLE_SDAREL_HA16D): New bfd relocations.
2012-05-14 James Lemke <jwlemke@codesourcery.com>
gas/
* config/tc-ppc.c (insn_validate): New func of existing code to call..
(ppc_setup_opcodes): ..from 2 places here.
Revise for second (VLE) opcode table.
Add #ifdef'd code to print opcode tables.
2012-05-14 James Lemke <jwlemke@codesourcery.com>
gas/
* config/tc-ppc.c (ppc_setup_opcodes): Allow out-of-order
for the VLE conditional branches.
2012-05-14 Catherine Moore <clm@codesourcery.com>
Maciej W. Rozycki <macro@codesourcery.com>
Rhonda Wittels <rhonda@codesourcery.com>
gas/
* config/tc-ppc.c (PPC_VLE_SPLIT16A): New macro.
(PPC_VLE_SPLIT16D): New macro.
(PPC_VLE_LO16A): New macro.
(PPC_VLE_LO16D): New macro.
(PPC_VLE_HI16A): New macro.
(PPC_VLE_HI16D): New macro.
(PPC_VLE_HA16A): New macro.
(PPC_VLE_HA16D): New macro.
(PPC_APUINFO_VLE): New definition.
(md_chars_to_number): New function.
(md_parse_option): Check for combinations of little
endian and -mvle.
(md_show_usage): Document -mvle.
(ppc_arch): Recognize VLE.
(ppc_mach): Recognize bfd_mach_ppc_vle.
(ppc_setup_opcodes): Print the opcode table if
* config/tc-ppc.h (ppc_frag_check): Declare.
* doc/c-ppc.texi: Document -mvle.
* NEWS: Mention PowerPC VLE port.
2012-05-14 Catherine Moore <clm@codesourcery.com>
gas/
* config/tc-ppc.h (ppc_dw2_line_min_insn_length): Declare.
(DWARF2_LINE_MIN_INSN_LENGTH): Redefine.
* config/tc-ppc.c (ppc_dw2_line_min_insn_length): New.
* dwarf2dbg.c (scale_addr_delta): Handle values of 1
for DWARF2_LINE_MIN_INSN_LENGTH.
2012-05-14 Catherine Moore <clm@codesourcery.com>
Maciej W. Rozycki <macro@codesourcery.com>
Rhonda Wittels <rhonda@codesourcery.com>
gas/testsuite/
* gas/ppc/ppc.exp: Run new tests.
* gas/ppc/vle-reloc.d: New test.
* gas/ppc/vle-reloc.s: New test.
* gas/ppc/vle-simple-1.d: New test.
* gas/ppc/vle-simple-1.s: New test.
* gas/ppc/vle-simple-2.d: New test.
* gas/ppc/vle-simple-2.s: New test.
* gas/ppc/vle-simple-3.d: New test.
* gas/ppc/vle-simple-3.s: New test.
* gas/ppc/vle-simple-4.d: New test.
* gas/ppc/vle-simple-4.s: New test.
* gas/ppc/vle-simple-5.d: New test.
* gas/ppc/vle-simple-5.s: New test.
* gas/ppc/vle-simple-6.d: New test.
* gas/ppc/vle-simple-6.s: New test.
* gas/ppc/vle.d: New test.
* gas/ppc/vle.s: New test.
2012-05-14 James Lemke <jwlemke@codesourcery.com>
include/elf/
* ppc.h (SEC_PPC_VLE): Remove.
2012-05-14 Catherine Moore <clm@codesourcery.com>
James Lemke <jwlemke@codesourcery.com>
include/elf/
* ppc.h (R_PPC_VLE_REL8): New reloction.
(R_PPC_VLE_REL15): Likewise.
(R_PPC_VLE_REL24): Likewise.
(R_PPC_VLE_LO16A): Likewise.
(R_PPC_VLE_LO16D): Likewise.
(R_PPC_VLE_HI16A): Likewise.
(R_PPC_VLE_HI16D): Likewise.
(R_PPC_VLE_HA16A): Likewise.
(R_PPC_VLE_HA16D): Likewise.
(R_PPC_VLE_SDA21): Likewise.
(R_PPC_VLE_SDA21_LO): Likewise.
(R_PPC_VLE_SDAREL_LO16A): Likewise.
(R_PPC_VLE_SDAREL_LO16D): Likewise.
(R_PPC_VLE_SDAREL_HI16A): Likewise.
(R_PPC_VLE_SDAREL_HI16D): Likewise.
(R_PPC_VLE_SDAREL_HA16A): Likewise.
(R_PPC_VLE_SDAREL_HA16D): Likewise.
(SEC_PPC_VLE): Remove.
(PF_PPC_VLE): New program header flag.
(SHF_PPC_VLE): New section header flag.
(vle_opcodes, vle_num_opcodes): New.
(VLE_OP): New macro.
(VLE_OP_TO_SEG): New macro.
2012-05-14 Catherine Moore <clm@codesourcery.com>
Maciej W. Rozycki <macro@codesourcery.com>
Rhonda Wittels <rhonda@codesourcery.com>
include/opcode/
* ppc.h (PPC_OPCODE_VLE): New definition.
(PPC_OP_SA): New macro.
(PPC_OP_SE_VLE): New macro.
(PPC_OP): Use a variable shift amount.
(powerpc_operand): Update comments.
(PPC_OPSHIFT_INV): New macro.
(PPC_OPERAND_CR): Replace with...
(PPC_OPERAND_CR_BIT): ...this and
(PPC_OPERAND_CR_REG): ...this.
2012-05-14 James Lemke <jwlemke@codesourcery.com>
ld/
* ldlang.c (walk_wild_consider_section): Don't copy section_flag_list.
Pass it to callback.
(walk_wild_section_general): Pass section_flag_list to callback.
(lang_add_section): Add sflag_list parm.
Move out logic to keep / omit a section & call bfd_lookup_section_flags.
(output_section_callback_fast): Add sflag_list parm.
Add new parm to lang_add_section calls.
(output_section_callback): Likewise.
(check_section_callback): Add sflag_list parm.
(lang_place_orphans): Add new parm to lang_add_section calls.
(gc_section_callback): Add sflag_list parm.
(find_relro_section_callback): Likewise.
* ldlang.h (callback_t): Add flag_info parm.
(lang_add_section): Add sflag_list parm.
* emultempl/armelf.em (elf32_arm_add_stub_section):
Add lang_add_section parm.
* emultempl/beos.em (gld*_place_orphan): Likewise.
* emultempl/elf32.em (gld*_place_orphan): Likewise.
* emultempl/hppaelf.em (hppaelf_add_stub_section): Likewise.
* emultempl/m68hc1xelf.em (m68hc11elf_add_stub_section): Likewise.
* emultempl/mipself.em (mips_add_stub_section): Likewise.
* emultempl/mmo.em (mmo_place_orphan): Likewise.
* emultempl/pe.em (gld_*_place_orphan): Likewise.
* emultempl/pep.em (gld_*_place_orphan): Likewise.
* emultempl/ppc64elf.em (ppc_add_stub_section): Likewise.
* emultempl/spuelf.em (spu_place_special_section): Likewise.
* emultempl/vms.em (vms_place_orphan): Likewise.
2012-05-14 James Lemke <jwlemke@codesourcery.com>
ld/testsuite/
* ld-powerpc/powerpc.exp: Create ppceabitests.
* ld-powerpc/vle-multiseg.s: New.
* ld-powerpc/vle-multiseg-1.d: New.
* ld-powerpc/vle-multiseg-1.ld: New.
* ld-powerpc/vle-multiseg-2.d: New.
* ld-powerpc/vle-multiseg-2.ld: New.
* ld-powerpc/vle-multiseg-3.d: New.
* ld-powerpc/vle-multiseg-3.ld: New.
* ld-powerpc/vle-multiseg-4.d: New.
* ld-powerpc/vle-multiseg-4.ld: New.
* ld-powerpc/vle-multiseg-5.d: New.
* ld-powerpc/vle-multiseg-5.ld: New.
* ld-powerpc/vle-multiseg-6.d: New.
* ld-powerpc/vle-multiseg-6.ld: New.
* ld-powerpc/vle-multiseg-6a.s: New.
* ld-powerpc/vle-multiseg-6b.s: New.
* ld-powerpc/vle-multiseg-6c.s: New.
* ld-powerpc/vle-multiseg-6d.s: New.
* ld-powerpc/powerpc.exp: Run new tests.
2012-05-14 Catherine Moore <clm@codesourcery.com>
ld/
* NEWS: Mention PowerPC VLE port.
2012-05-14 Catherine Moore <clm@codesourcery.com>
ld/testsuite/
* ld-powerpc/apuinfo.rd: Update for VLE.
* ld-powerpc/vle-reloc-1.d: New.
* ld-powerpc/vle-reloc-1.s: New.
* ld-powerpc/vle-reloc-2.d: New.
* ld-powerpc/vle-reloc-2.s: New.
* ld-powerpc/vle-reloc-3.d: New.
* ld-powerpc/vle-reloc-3.s: New.
* ld-powerpc/vle-reloc-def-1.s: New.
* ld-powerpc/vle-reloc-def-2.s: New.
* ld-powerpc/vle-reloc-def-3.s: New.
2012-05-14 James Lemke <jwlemke@codesourcery.com>
opcodes/
* ppc-dis.c (get_powerpc_dialect): Use is_ppc_vle.
(PPC_OPCD_SEGS, VLE_OPCD_SEGS): New defines.
(vle_opcd_indices): New array.
(lookup_vle): New function.
(disassemble_init_powerpc): Revise for second (VLE) opcode table.
(print_insn_powerpc): Likewise.
* ppc-opc.c: Likewise.
2012-05-14 Catherine Moore <clm@codesourcery.com>
Maciej W. Rozycki <macro@codesourcery.com>
Rhonda Wittels <rhonda@codesourcery.com>
Nathan Froyd <froydnj@codesourcery.com>
opcodes/
* ppc-opc.c (insert_arx, extract_arx): New functions.
(insert_ary, extract_ary): New functions.
(insert_li20, extract_li20): New functions.
(insert_rx, extract_rx): New functions.
(insert_ry, extract_ry): New functions.
(insert_sci8, extract_sci8): New functions.
(insert_sci8n, extract_sci8n): New functions.
(insert_sd4h, extract_sd4h): New functions.
(insert_sd4w, extract_sd4w): New functions.
(insert_vlesi, extract_vlesi): New functions.
(insert_vlensi, extract_vlensi): New functions.
(insert_vleui, extract_vleui): New functions.
(insert_vleil, extract_vleil): New functions.
(BI_MASK, BB_MASK, BT): Use PPC_OPERAND_CR_BIT.
(BI16, BI32, BO32, B8): New.
(B15, B24, CRD32, CRS): New.
(CRD, OBF, BFA, CR, CRFS): Use PPC_OPERAND_CR_REG.
(DB, IMM20, RD, Rx, ARX, RY, RZ): New.
(ARY, SCLSCI8, SCLSCI8N, SE_SD, SE_SDH): New.
(SH6_MASK): Use PPC_OPSHIFT_INV.
(SI8, UI5, OIMM5, UI7, BO16): New.
(VLESIMM, VLENSIMM, VLEUIMM, VLEUIMML): New.
(XT6, XA6, XB6, XB6S, XC6): Use PPC_OPSHIFT_INV.
(ALLOW8_SPRG): New.
(insert_sprg, extract_sprg): Check ALLOW8_SPRG.
(OPVUP, OPVUP_MASK OPVUP): New
(BD8, BD8_MASK, BD8IO, BD8IO_MASK): New.
(EBD8IO, EBD8IO1_MASK, EBD8IO2_MASK, EBD8IO3_MASK): New.
(BD15, BD15_MASK, EBD15, EBD15_MASK, EBD15BI, EBD15BI_MASK): New.
(BD24,BD24_MASK, C_LK, C_LK_MASK, C, C_MASK): New.
(IA16, IA16_MASK, I16A, I16A_MASK, I16L, I16L_MASK): New.
(IM7, IM7_MASK, LI20, LI20_MASK, SCI8, SCI8_MASK): New.
(SCI8BF, SCI8BF_MASK, SD4, SD4_MASK): New.
(SE_IM5, SE_IM5_MASK): New.
(SE_R, SE_R_MASK, SE_RR, SE_RR_MASK): New.
(EX, EX_MASK, BO16F, BO16T, BO32F, BO32T): New.
(BO32DNZ, BO32DZ): New.
(NO371, PPCSPE, PPCISEL, PPCEFS, MULHW): Include PPC_OPCODE_VLE.
(PPCVLE): New.
(powerpc_opcodes): Add new VLE instructions. Update existing
instruction to include PPCVLE if supported.
* ppc-dis.c (ppc_opts): Add vle entry.
(get_powerpc_dialect): New function.
(powerpc_init_dialect): VLE support.
(print_insn_big_powerpc): Call get_powerpc_dialect.
(print_insn_little_powerpc): Likewise.
(operand_value_powerpc): Handle negative shift counts.
(print_insn_powerpc): Handle 2-byte instruction lengths.
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* 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.
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* elf32-ppc.h (ppc_elf_select_plt_layout): Update prototype.
(enum ppc_elf_plt_type): Move from..
* elf32-ppc.c: ..here.
(struct ppc_elf_obj_tdata): Add makes_plt_call and has_rel16.
(struct ppc_elf_link_hash_table): Reorder. Add old_bfd. Delete
can_use_new_plt. Make is_vxworks a bitfield.
(ppc_elf_link_hash_table_create): Don't clear is_vxworks (again).
(ppc_elf_check_relocs): Update setting of reloc flags. Set old_bfd.
(ppc_elf_select_plt_layout): Modify parameters. Use bfd reloc
flags to better detect object files needing old bss-style plt.
Allow secure plt to be used without rel16 relocs being detected.
Warn if secure plt request cannot be allowed.
ld/
* emultempl/ppc32elf.em (plt_style): New variable.
(old_plt): Delete.
(ppc_after_open): Adjust ppc_elf_select_plt_layout call.
(PARSE_AND_LIST_PROLOGUE): Define OPTION_NEW_PLT, renumber
OPTION_OLD_PLT, OPTION_OLD_GOT and OPTION_STUBSYMS.
(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS): Add secure-plt.
(PARSE_AND_LIST_ARGS_CASES): Handle OPTION_NEW_PLT.
* ld.texinfo (--secure-plt): Document.
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* elf32-ppc.c (struct ppc_elf_link_hash_table): Add emit_stub_syms.
(ppc_elf_select_plt_layout): Add emit_stub_syms param, save to htab.
(add_stub_sym): New function.
(allocate_dynrelocs): Call add_stub_sym.
(ppc_elf_size_dynamic_sections): Emit __glink and __glink_PLTresolve
when emit_stub_syms.
* elf32-ppc.h (ppc_elf_select_plt_layout): Update prototype.
ld/
* emultempl/ppc32elf.em (emit_stub_syms): New var.
(ppc_after_open): Pass it to ppc_elf_select_plt_layout.
(PARSE_AND_LIST_PROLOGUE <OPTION_STUBSYMS>): Define.
(PARSE_AND_LIST_LONGOPTS): Add emit-stub-syms.
(PARSE_AND_LIST_OPTIONS): Describe emit-stub-syms.
(PARSE_AND_LIST_OPTIONS): Handle it.
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* elf32-ppc.c (ppc_elf_set_sdata_syms): Return void. Remove hack
for zero size sections. Don't set .sbss syms here.
* elf32-ppc.h (ppc_elf_set_sdata_syms): Adjust prototype.
ld/
* emultempl/elf32.em (gld*_provide_init_fini_syms): Prototype.
(gld*_before_allocation): Call ldemul_do_assignments rather than
gld*_provide_init_fini_syms directly.
* emultempl/ppc32elf.em (gld*_after_allocation): Delete.
(ppc_do_assignments): New function.
(LDEMUL_AFTER_ALLOCATION): Don't define.
(LDEMUL_DO_ASSIGNMENTS): Define.
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(BFD_RELOC_HI16_S_PCREL, BFD_RELOC_LO16_PCREL): Define.
* elf32-ppc.c (GLINK_PLTRESOLVE, GLINK_ENTRY_SIZE): Define.
(CROR_151515, CROR_313131): Delete.
(ADDIS_11_11, ADDI_11_11, SUB_11_11_30, ADD_0_11_11, ADD_11_0_11,
LWZ_0_4_30, MTCTR_0, LWZ_12_8_30, BCTR, ADDIS_11_30,
LWZU_0_X_11): Define.
(ppc_elf_howto_raw): Add R_PPC_REL16, R_PPC_REL16_LO, R_PPC_REL16_HI
and R_PPC_REL16_HA entries.
(ppc_elf_reloc_type_lookup): Convert new bfd reloc types.
(ppc_elf_addr16_ha_reloc): Also handle R_PPC_REL16_HA.
(struct ppc_elf_link_hash_table): Add glink, glink_pltresolve,
new_plt, and old_plt.
(ppc_elf_create_dynamic_sections): Create .glink section.
(ppc_elf_check_relocs): Set new_plt and old_plt.
(ppc_elf_select_plt_layout): New function.
(ppc_elf_tls_setup): Set plt output section elf type and flags.
(allocate_got): Handle differences between old and new got layout.
(allocate_dynrelocs): Likewise for plt.
(ppc_elf_size_dynamic_sections): Likewise. Allocate memory for
.glink. Don't allocate memory for old bss .plt. Emit DT_PPC_GLINK.
(ppc_elf_relax_section): Rename ppc_info to htab. Handle .glink
destination of R_PPC_PLTREL24 relocs.
(ppc_elf_relocate_section): Handle new relocs and changed destination
of R_PPC_PLTREL24.
(ppc_elf_finish_dynamic_symbol): Init new style plt and handle
differences in layout.
(ppc_elf_finish_dynamic_sections): Set DT_PPC_GLINK value. Don't
put a blrl in new got. Write glink contents.
* elf32-ppc.h (ppc_elf_select_plt_layout): Declare.
* libbfd.h: Regenerate.
* bfd-in2.h: Regenerate.
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* elf32-ppc.c (struct elf_linker_section): Remove sym_hash and
sym_offset. Add name, bss_name, sym_name, sym_val.
(struct ppc_elf_link_hash_table): Remove sdata and sdata2 pointers.
Add sdata array of elf_linker_section_t.
(ppc_elf_link_hash_table_create): Set name, sym_name, and bss_name.
(enum elf_linker_section_enum): Delete.
(ppc_elf_create_linker_section): Rewrite. Don't create syms here.
(ppc_elf_check_relocs): Delay ppc_elf_create_linker_section until
the special sections are needed. Adjust htab->sdata refs.
Ensure dynobj is set in sreloc code.
(ppc_elf_size_dynamic_sections): Strip sdata sections.
(ppc_elf_set_sdata_syms): New function.
(elf_finish_pointer_linker_section): Use 0x8000 for sym_offset.
(ppc_elf_relocate_section): Adjust references to htab->sdata. Use
sym_val instead of sym_hash.
* elf32-ppc.h (ppc_elf_set_sdata_syms): Declare.
ld/
* emultempl/ppc32elf.em (gld${EMULATION_NAME}_after_allocation): New
function.
(LDEMUL_AFTER_ALLOCATION): Define.
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* bfd-in2.h: Regenerate.
* elf-bfd.h (struct elf_link_tls_segment): Delete.
(struct elf_link_hash_table): Add tls_sec and tls_size.
* elf.c (_bfd_elf_link_hash_table_init): Init tls_sec and tls_size.
* elflink.c (_bfd_elf_tls_setup): New function.
* elflink.h (struct elf_final_link_info): Remove first_tls_sec.
(elf_bfd_final_link): Don't set first_tls_sec here. Update code
saving tls segment info, round segment size up.
(elf_link_output_extsym): Adjust code using tls segment info.
(elf_link_input_bfd): Likewise.
* elf32-i386.c (dtpoff_base, tpoff): Likewise.
* elf32-s390.c (dtpoff_base, tpoff): Likewise.
* elf32-sh.c (dtpoff_base, tpoff): Likewise.
* elf32-sparc.c (dtpoff_base, tpoff): Likewise.
* elf64-s390.c (dtpoff_base, tpoff): Likewise.
* elf64-x86-64.c (dtpoff_base, tpoff): Likewise.
* elfxx-ia64.c (elfNN_ia64_tprel_base): Likewise.
(elfNN_ia64_dtprel_base): Likewise.
* elf64-alpha.c (alpha_get_dtprel_base): Likewise.
(alpha_get_tprel_base): Likewise.
(struct alpha_relax_info): Remove tls_segment.
(elf64_alpha_relax_got_load): Adjust invocation of
alpha_get_dtprel_base and alpha_get_tprel_base.
(elf64_alpha_relax_tls_get_addr): Likewise.
(elf64_alpha_relax_section): Likewise.
(elf64_alpha_relocate_section): Likewise.
(elf64_alpha_relax_find_tls_segment): Delete.
* elf32-ppc.c (struct ppc_elf_link_hash_table): Remove tls_sec.
(ppc_elf_tls_setup): Call _bfd_elf_tls_setup. Return section.
(ppc_elf_relocate_section): Adjust to use elf.tls_sec.
* elf32-ppc.h (ppc_elf_tls_setup): Update.
* elf64-ppc.c (struct ppc_link_hash_table): Remove tls_sec.
(ppc64_elf_tls_setup): Call _bfd_elf_tls_setup. Return section.
(ppc64_elf_tls_optimize): Adjust to use elf.tls_sec.
(ppc64_elf_relocate_section): Likewise.
* elf64-ppc.h (ppc64_elf_tls_setup): Update.
* emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation): Call
_bfd_elf_tls_setup.
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prototypes and casts. Replace PTR with void *. Formatting.
* elf32-ppc.c: Likewise. Break long strings too.
(ppc_elf_relax_section): Use enum elf_ppc_reloc_type for r_type.
(ppc_elf_unhandled_reloc): Internationalize error message.
* elf32-ppc.h: Remove PARAMS.
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* elf32-ppc.c: Include elf32-ppc.h.
(NOP, CROR_151515, CROR_313131, TP_OFFSET, DTP_OFFSET): Define.
(struct ppc_elf_link_hash_entry): Rename "root" to "elf". Adjust uses.
Add "tls_mask" field.
(TLS_GD, TLS_LD, TLS_TPREL, TLS_DTPREL, TLS_TLS, TLS_TPRELGD): Define.
(struct ppc_elf_link_hash_table): Rename "root" to "elf". Adjust uses.
Add got, relgot, plt, relplt, dynbss, relbss, dynsbss, relsbss,
sdata, sdata2, tls_sec, tls_get_addr, tlsld_got fields.
Make use of htab shortcuts throughout file.
(ppc_elf_link_hash_newfunc): Init tls_mask field.
(ppc_elf_link_hash_table_create): Init new fields.
(ppc_elf_copy_indirect_symbol): Copy tls_mask.
(ppc_elf_howto_raw): Add tls relocs.
(ppc_elf_reloc_type_lookup): Handle them.
(ppc_elf_unhandled_reloc): New function.
(ppc_elf_create_got): Stash got section pointer in hash table,
return status. Make .rela.got too.
(ppc_elf_create_dynamic_sections): Stash section pointers in htab.
(ppc_elf_adjust_dynamic_symbol): Only set up copy relocs when
NON_GOT_REF set. Don't allocate space in .plt here..
(allocate_dynrelocs): ..do so here instead, properly ref-counting and
not allocating plt entries unnecessarily. Allocate got entries here.
(WILL_CALL_FINISH_DYNAMIC_SYMBOL): Define.
(ppc_elf_size_dynamic_sections): Allocate local got entries. Pass
"info" during allocate_dynrelocs hash traversal. Use htab section
shortcuts rather than searching for named sections. Get rid of
"plt" and "strip" booleans.
(update_local_sym_info, bad_shared_reloc): New functions.
(ppc_elf_check_relocs): Handle TLS relocs. Move .rela.got creation to
ppc_elf_create_got. Don't mark got or plt reloc syms dynamic, do so
in allocate_dynreloc. Use update_local_sym_info and bad_shared_reloc.
Disallow R_PPC_EMB_RELSDA, R_PPC_EMB_NADDR32, R_PPC_EMB_NADDR16,
R_PPC_EMB_NADDR16_LO, R_PPC_EMB_NADDR16_HI and R_PPC_EMB_NADDR16_HA
in shared libs. R_PPC_PLTREL32 is a plt reloc too. Refcount all
relocs that might use a plt entry. Set NON_GOT_REF too.
Enumerate all do-nothing relocs.
(ppc_elf_gc_sweep_hook): Simplify removal of dynrelocs. Handle
tls relocs and all plt relocs.
(ppc_elf_tls_setup, ppc_elf_tls_optimize): New functions.
(ppc_elf_finish_dynamic_symbol): Don't build got entries here.
(ppc_elf_finish_dynamic_sections): Rewrite tag code using htab
shortcuts.
(ppc_elf_relocate_section): Tidy. Handle TLS relocs. Use
bfd_elf_local_sym_name. Simplify unresolved reloc code. Build got
entries and got relocs here. Warn on non-zero got reloc addend.
Split out branch taken/not taken reloc code into a separate switch
and correct offset calculation. Allow BRTAKEN/BRNTAKEN dynamic relocs.
Split out HA reloc adjustments to separate switch statement. Don't
warn on reloc overflow if we've already warned about undefined.
Don't rebuild sym name when reporting errors. Report all possible
errors from _bfd_final_link_relocate.
(bfd_elf32_bfd_final_link): Don't define.
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