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2017-01-07[GOLD] powerpc.cc tidiesAlan Modra1-38/+28
Plus some paranoia in symval_for_branch. We shouldn't get there with dynamic symbols, but if we ever did the static_cast to Powerpc_relobj would be wrong. * powerpc.cc: Use shorter equivalent elfcpp typedef for Reltype and reloc_size throughout. (Target_powerpc::symval_for_branch): Exclude dynamic symbols. (Target_powerpc::Scan::local): Use local var r_sym. (Target_powerpc::Scan::global: Likewise. (Target_powerpc::Relocate::relocate): Delete shadowing r_sym.
2017-01-02Update year range in copyright notice of all files.Alan Modra1-1/+1
2016-12-08[GOLD] Don't assert in powerpc stub_tableAlan Modra1-2/+2
A branch in a non-exec section that needs a stub can lead to this assertion. * powerpc.cc (Powerpc_relobj::stub_table): Return NULL rather then asserting.
2016-12-07[GOLD] PowerPC --stub-group-multiAlan Modra1-19/+30
Adds a new option, defaulting to off, that allows a group of stubs to serve multiple output sections. Prior to this patch powerpc gold allowed this unconditionally, which is a little unsafe with clever code that discards/reuses sections at runtime. * options.h (--stub-group-multi): New PowerPC option. * powerpc.cc (Stub_control): Add multi_os_ var and param to constructor. Sort start_ var later. Comment State. (Stub_control::can_add_to_stub_group): Heed multi_os_. (Target_powerpc::group_sections): Update.
2016-12-07[GOLD] powerpc64le-linux fails to link large Linux kernelAlan Modra1-76/+51
Gold attaches stubs to an existing section in contrast to ld.bfd which inserts a new section for stubs. If we want stubs before branches, then the stubs must be added to the previous section. Adding to the previous section is a disaster if there is a large gap between the previous section and the group. PR gold/20878 * powerpc.cc (Stub_control): Replace stubs_always_before_branch_ with stubs_always_after_branch_, group_end_addr_ with group_start_addr_. (Stub_control::can_add_to_stub_group): Rewrite to suit scanning sections by increasing address. (Target_powerpc::group_sections): Scan that way. Delete corner case. * options.h (--stub-group-size): Update help string.
2016-12-07[GOLD] PowerPC stub debugAlan Modra1-11/+27
Some more debug output, and a little hardening. * powerpc.cc (Stub_table_owner): Provide constructor. (Powerpc_relobj::set_stub_table): Resize fill with -1. (Target_powerpc::Branch_info::make_stub): Provide target debug output on returning false.
2016-12-01Fix internal error when relaxing branches to STT_SECTION symbols.Cary Coutant1-0/+2
gold/ PR gold/20807 * aarch64.cc (Target_aarch64::scan_reloc_section_for_stubs): Handle section symbols correctly. * arm.cc (Target_arm): Likewise. * powerpc.cc (Target_powerpc): Likewise.
2016-10-06[GOLD] two more fall-through commentsAlan Modra1-0/+1
* powerpc.cc (Target_powerpc::Relocate::relocate): Add fall through comment. * tilegx.cc (Target_tilegx::Relocate::relocate): Likewise.
2016-10-06[GOLD] -Wimplicit-fallthrough warning fixesAlan Modra1-2/+13
* aarch64.cc: Spell fall through comments as "// Fall through.". * arm.cc: Likewise. * mips.cc: Likewise. * powerpc.cc: Likewise. * s390.cc: Likewise. * sparc.cc: Likewise. * x86_64.cc: Likewise. * powerpc.cc (Target_powerpc::Relocate::relocate): Add missing fall through comments. * sparc.cc: (Target_sparc::Scan::global): Likewise. (Target_sparc::Relocate::relocate): Likewise. * tilegx.cc (Target_tilegx::Relocate::relocate): Likewise. * resolve.cc (symbol_to_bits): Add missing break.
2016-08-31[GOLD] Further tidy to powerpc can_add_to_stub_groupAlan Modra1-19/+20
This patch adds a little more debug output, and replaces two variables with one, tracking current max group size by group_size_ rather than by has14_. * powerpc.cc (class Stub_control): Delete stub14_group_size_ and has14_. Add group_size_. (Stub_control::can_add_to_stub_group): Adjust to suit. Print debug info when switching to adding sections before stubs.
2016-08-31[GOLD] Add debug output for powerpc section groupingAlan Modra1-0/+9
* debug.h (DEBUG_TARGET): New. (DEBUG_ALL): Add DEBUG_TARGET. (gold_debug): Delete FORMAT param. * powerpc.cc (Stub_control::can_add_to_stub_group): Print debug ourput.
2016-08-30[GOLD] correct grouping of stubsAlan Modra1-33/+70
This patch rewrites the rather obscure can_add_to_stub_group, fixing a problem with the handling of sections containing conditional external branches. When a section group contains any such section, the group size needs to be limited to a much smaller size than groups with only non-conditional external branches. PR 20523 * powerpc.cc (class Stub_control): Add has14_. Comment owner_. (Stub_control::can_add_to_stub_group): Correct grouping of sections containing 14-bit external branches. When returning false, set state_ to reflect the fact that we have one section for the next group. Rewrite most of function for clarity. Add and expand comments. (Target_powerpc::do_relax): Print stub group size retry in hex.
2016-08-28PR gold/20529 - relaxing loop never ends.Han Shen1-3/+24
gold/ChangeLog 2016-08-26 Han Shen <shenhan@google.com> * powerpc.cc (Stub_table::min_size_threshold_): New member to limit size. (Stub_table::set_min_size_threshold): New member function. (Stub_table::set_address_and_size): Add code to only allow size increase. (Target_powerpc::do_relax): Add code to record last size.
2016-02-04Fix "PowerPC64 ELFv2 entry code" for big-endianAlan Modra1-1/+1
bfd/ * elf64-ppc.c (ppc64_elf_relocate_section): Adjust last patch for big-endian. gold/ * powerpc.cc (relocate): Adjust last patch for big-endian.
2016-02-02PowerPC64 ELFv2 entry codeAlan Modra1-0/+1
This tightens the condition under which ld optimizes PIC entry code to non-PIC. bfd/ * elf64-ppc.c (ppc64_elf_relocate_section): Further restrict ELFv2 entry optimization. gold/ * powerpc.cc (relocate): Further restrict ELFv2 entry optimization.
2016-01-11Refactor gold to enable support for MIPS-64 relocation format.Cary Coutant1-22/+85
For MIPS-64, the r_info field in the relocation format is replaced by several individual fields, including r_sym and r_type. To enable support for this format, I've refactored target-independent code to remove almost all uses of the r_info field. (I've left alone a couple of routines used only for incremental linking, which I can update if/when the MIPS target adds support for incremental linking.) For routines that are already templated on a Classify_reloc class (namely, gc_process_relocs, relocate_section, and relocate_relocs), I've extended the Classify_reloc interface to include sh_type (which no longer needs to be a separate template parameter) as well as get_r_sym() and get_r_type() methods for extracting the r_sym and r_type fields. For scan_relocatable_relocs, I've extended the Default_scan_relocatable_relocs class by converting it to a class template with Classify_reloc as a template parameter. For the remaining routines that need to access r_sym, I've added a virtual Target::get_r_sym() method with an override for the MIPS target. In elfcpp, I've added Mips64_rel, etc., accessor classes and corresponding internal data structures. The MIPS target uses these new classes within its own Mips_classify_reloc class. The Mips64_ accessor classes also expose the r_ssym, r_type2, and r_type3 fields from the relocation. These changes should be functionally the same for all but the MIPS target. elfcpp/ * elfcpp.h (Mips64_rel, Mips64_rel_write): New classes. (Mips64_rela, Mips64_rela_write): New classes. * elfcpp_internal.h (Mips64_rel_data, Mips64_rela_data): New structs. gold/ * gc.h (get_embedded_addend_size): Remove sh_type parameter. (gc_process_relocs): Remove sh_type template parameter. Use Classify_reloc to access r_sym, r_type, and r_addend fields. * object.h (Sized_relobj_file::split_stack_adjust): Add target parameter. (Sized_relobj_file::split_stack_adjust_reltype): Likewise. * reloc-types.h (Reloc_types::copy_reloc_addend): (SHT_REL and SHT_RELA specializations) Remove. * reloc.cc (Emit_relocs_strategy): Rename and move to target-reloc.h. (Sized_relobj_file::emit_relocs_scan): Call Target::emit_relocs_scan(). (Sized_relobj_file::emit_relocs_scan_reltype): Remove. (Sized_relobj_file::split_stack_adjust): Add target parameter. Adjust all callers. (Sized_relobj_file::split_stack_adjust_reltype): Likewise. Call Target::get_r_sym() to get r_sym field from relocations. (Track_relocs::next_symndx): Call Target::get_r_sym(). * target-reloc.h (scan_relocs): Remove sh_type template parameter; add Classify_reloc template parameter. Use for accessing r_sym and r_type. (relocate_section): Likewise. (Default_classify_reloc): New class (renamed and moved from reloc.cc). (Default_scan_relocatable_relocs): Remove sh_type template parameter. (Default_scan_relocatable_relocs::Reltype): New typedef. (Default_scan_relocatable_relocs::reloc_size): New const. (Default_scan_relocatable_relocs::sh_type): New const. (Default_scan_relocatable_relocs::get_r_sym): New method. (Default_scan_relocatable_relocs::get_r_type): New method. (Default_emit_relocs_strategy): New class. (scan_relocatable_relocs): Replace sh_type template parameter with Scan_relocatable_relocs class. Use it to access r_sym and r_type fields. (relocate_relocs): Replace sh_type template parameter with Classify_reloc class. Use it to access r_sym and r_type fields. * target.h (Target::is_call_to_non_split): Replace r_type parameter with pointer to relocation. Adjust all callers. (Target::do_is_call_to_non_split): Likewise. (Target::emit_relocs_scan): New virtual method. (Sized_target::get_r_sym): New virtual method. * target.cc (Target::do_is_call_to_non_split): Replace r_type parameter with pointer to relocation. * aarch64.cc (Target_aarch64::emit_relocs_scan): New method. (Target_aarch64::Relocatable_size_for_reloc): Remove. (Target_aarch64::gc_process_relocs): Use Default_classify_reloc. (Target_aarch64::scan_relocs): Likewise. (Target_aarch64::relocate_section): Likewise. (Target_aarch64::Relocatable_size_for_reloc::get_size_for_reloc): Remove. (Target_aarch64::scan_relocatable_relocs): Use Default_classify_reloc. (Target_aarch64::relocate_relocs): Use Default_classify_reloc. * arm.cc (Target_arm::Arm_scan_relocatable_relocs): Remove sh_type template parameter. (Target_arm::emit_relocs_scan): New method. (Target_arm::Relocatable_size_for_reloc): Replace with... (Target_arm::Classify_reloc): ...this. (Target_arm::gc_process_relocs): Use Classify_reloc. (Target_arm::scan_relocs): Likewise. (Target_arm::relocate_section): Likewise. (Target_arm::scan_relocatable_relocs): Likewise. (Target_arm::relocate_relocs): Likewise. * i386.cc (Target_i386::emit_relocs_scan): New method. (Target_i386::Relocatable_size_for_reloc): Replace with... (Target_i386::Classify_reloc): ...this. (Target_i386::gc_process_relocs): Use Classify_reloc. (Target_i386::scan_relocs): Likewise. (Target_i386::relocate_section): Likewise. (Target_i386::scan_relocatable_relocs): Likewise. (Target_i386::relocate_relocs): Likewise. * mips.cc (Mips_scan_relocatable_relocs): Remove sh_type template parameter. (Mips_reloc_types): New class template. (Mips_classify_reloc): New class template. (Target_mips::Reltype): New typedef. (Target_mips::Relatype): New typedef. (Target_mips::emit_relocs_scan): New method. (Target_mips::get_r_sym): New method. (Target_mips::Relocatable_size_for_reloc): Replace with Mips_classify_reloc. (Target_mips::copy_reloc): Use Mips_classify_reloc. (Target_mips::gc_process_relocs): Likewise. (Target_mips::scan_relocs): Likewise. (Target_mips::relocate_section): Likewise. (Target_mips::scan_relocatable_relocs): Likewise. (Target_mips::relocate_relocs): Likewise. (mips_get_size_for_reloc): New function, factored out from Relocatable_size_for_reloc::get_size_for_reloc. (Target_mips::Scan::local): Use Mips_classify_reloc. (Target_mips::Scan::global): Likewise. (Target_mips::Relocate::relocate): Likewise. * powerpc.cc (Target_powerpc::emit_relocs_scan): New method. (Target_powerpc::Relocatable_size_for_reloc): Remove. (Target_powerpc::gc_process_relocs): Use Default_classify_reloc. (Target_powerpc::scan_relocs): Likewise. (Target_powerpc::relocate_section): Likewise. (Powerpc_scan_relocatable_reloc): Convert to class template. (Powerpc_scan_relocatable_reloc::Reltype): New typedef. (Powerpc_scan_relocatable_reloc::reloc_size): New const. (Powerpc_scan_relocatable_reloc::sh_type): New const. (Powerpc_scan_relocatable_reloc::get_r_sym): New method. (Powerpc_scan_relocatable_reloc::get_r_type): New method. (Target_powerpc::scan_relocatable_relocs): Use Powerpc_scan_relocatable_reloc. (Target_powerpc::relocate_relocs): Use Default_classify_reloc. * s390.cc (Target_s390::emit_relocs_scan): New method. (Target_s390::Relocatable_size_for_reloc): Remove. (Target_s390::gc_process_relocs): Use Default_classify_reloc. (Target_s390::scan_relocs): Likewise. (Target_s390::relocate_section): Likewise. (Target_s390::Relocatable_size_for_reloc::get_size_for_reloc): Remove. (Target_s390::scan_relocatable_relocs): Use Default_classify_reloc. (Target_s390::relocate_relocs): Use Default_classify_reloc. * sparc.cc (Target_sparc::emit_relocs_scan): New method. (Target_sparc::Relocatable_size_for_reloc): Remove. (Target_sparc::gc_process_relocs): Use Default_classify_reloc. (Target_sparc::scan_relocs): Likewise. (Target_sparc::relocate_section): Likewise. (Target_sparc::Relocatable_size_for_reloc::get_size_for_reloc): Remove. (Target_sparc::scan_relocatable_relocs): Use Default_classify_reloc. (Target_sparc::relocate_relocs): Use Default_classify_reloc. * tilegx.cc (Target_tilegx::emit_relocs_scan): New method. (Target_tilegx::Relocatable_size_for_reloc): Remove. (Target_tilegx::gc_process_relocs): Use Default_classify_reloc. (Target_tilegx::scan_relocs): Likewise. (Target_tilegx::relocate_section): Likewise. (Target_tilegx::Relocatable_size_for_reloc::get_size_for_reloc): Remove. (Target_tilegx::scan_relocatable_relocs): Use Default_classify_reloc. (Target_tilegx::relocate_relocs): Use Default_classify_reloc. * x86_64.cc (Target_x86_64::emit_relocs_scan): New method. (Target_x86_64::Relocatable_size_for_reloc): Remove. (Target_x86_64::gc_process_relocs): Use Default_classify_reloc. (Target_x86_64::scan_relocs): Likewise. (Target_x86_64::relocate_section): Likewise. (Target_x86_64::Relocatable_size_for_reloc::get_size_for_reloc): Remove. (Target_x86_64::scan_relocatable_relocs): Use Default_classify_reloc. (Target_x86_64::relocate_relocs): Use Default_classify_reloc. * testsuite/testfile.cc (Target_test::emit_relocs_scan): New method.
2016-01-01Copyright update for binutilsAlan Modra1-1/+1
2015-12-11Pass relocations to Target::do_calls_non_split.Cary Coutant1-1/+5
gold/ * target.h (Target::calls_non_split): Add prelocs, reloc_count parameters. (Target::do_calls_non_split): Likewise. * target.cc (Target::do_calls_non_split): Likewise. * reloc.cc (Sized_relobj_file::split_stack_adjust_reltype): Adjust call to Target::calls_non_split. * i386.cc (Target_i386::do_calls_non_split): Add prelocs, reloc_count parameters. * powerpc.cc (Target_powerpc::do_calls_non_split): Likewise. * x86_64.cc (Target_x86_64::do_calls_non_split): Likewise.
2015-12-09[GOLD] PowerPC style fixAlan Modra1-22/+27
* powerpc.cc (Target_powerpc::Relocate::relocate): New constant d_offset. Use throughout. (Target_powerpc::relocate_relocs): Likewise.
2015-12-09[GOLD] Edit PowerPC64 ELFv2 function entry codeAlan Modra1-2/+66
In an fixed position executable, the entry code does not need to be PIC and can thus lose a dependency on r12. * powerpc.cc (Target_powerpc::Relocate::relocate): Edit ELFv2 entry code. (Target_powerpc::relocate_relocs): Edit relocs to suit.
2015-12-09[GOLD] Relocate::relocate() paramsAlan Modra1-12/+9
Some linker code editing needs to change multiple insns. In some cases multiple relocations are involved and it is not sufficient to make the changes independently as relocations are processed, because doing so might lead to a partial edit. So in order to safely edit we need all the relocations available in relocate(). Also, to emit edited relocs corresponding to the edited code sequence we need some way to pass information from relocate() to relocate_relocs(), particularly if the edit depends on insns. We can't modify input relocs in relocate() as they are mmapped PROT_READ, nor it is particularly clean to write relocs to the output at that stage. So add a Relocatable_relocs* field to relinfo to mark edited relocs. Given that relocate is passed the raw reloc pointer, it makes sense to remove the rel/rela parameter and r_type too. However, that means the mips relocate() needs to know whether SHT_REL or SHT_RELA relocs are being processed. So add a rel_type for mips, which also has the benefit of removing relocate() overloading there. This patch adds the infrastructure without making use of it. Note that relinfo->rr will be NULL if not outputting relocations. * object.h (struct Relocate_info): Add "rr". * reloc.h (Relocatable_relocs::set_strategy): New accessor. * reloc.cc (Sized_relobj_file::do_relocate_sections): Init relinfo.rr for relocate_section and relocate_relocs. * powerpc.cc (relocate): Add rel_type and preloc parameters. Delete rela and r_type params, instead recalculate these from preloc. (relocate_relocs): Delete Relocatable_relocs* param, instead use relinfo->rr. * aarch64.cc: Likewise. * arm.cc: Likewise. * i386.cc: Likewise. * mips.cc: Likewise. * s390.cc: Likewise. * sparc.cc: Likewise. * target.h: Likewise. * tilegx.cc: Likewise. * x86_64.cc: Likewise. * testsuite/testfile.cc: Likewise. * target-reloc.h (relocate_section): Adjust to suit. (apply_relocation, relocate_relocs): Likewise.
2015-12-07[GOLD] R_PPC64_ENTRY supportAlan Modra1-0/+47
elfcpp/ * powerpc.h (R_PPC64_ENTRY): Define. gold/ * powerpc.cc (add_2_2_12, ld_2_12, lis_2): Define. (Target_powerpc::Scan::local, global): Handle R_PPC64_ENTRY. (Target_powerpc::Relocate::relocate): Edit code at R_PPC64_ENTRY.
2015-11-25[GOLD] Align PowerPC64 GOTAlan Modra1-1/+4
As done in a27e685f for bfd ld. * powerpc.cc (Output_data_got_powerpc::Output_data_got_powerpc): Align to 256 byte boundary.
2015-11-19[GOLD] PowerPC TOC16 and GOT16 relocs are relativeAlan Modra1-2/+1
* powerpc.cc (Target_powerpc::Scan::get_reference_flags): Correct GOT16 and TOC16 relocs to RELATIVE_REF.
2015-11-11Add assembler, disassembler and linker support for power9.Peter Bergner1-5/+64
include/opcode/ * ppc.h (PPC_OPCODE_POWER9): New define. (PPC_OPCODE_VSX3): Likewise. opcodes/ * ppc-dis.c (ppc_opts): Add "power9" and "pwr9" entries. Add PPC_OPCODE_VSX3 to the vsx entry. (powerpc_init_dialect): Set default dialect to power9. * ppc-opc.c (insert_dcmxs, extract_dcmxs, insert_dxd, extract_dxd, insert_dxdn, extract_dxdn, insert_l0, extract_l0, insert_l1, extract_l1 insert_xtq6, extract_xtq6): New static functions. (insert_esync): Test for illegal L operand value. (DCMX, DCMXS, DXD, NDXD, L0, L1, RC, FC, UIM6, X_R, RIC, PRS, XSQ6, XTQ6, LRAND, IMM8, DQX, DQX_MASK, DX, DX_MASK, VXVAPS_MASK, VXVA,XVA, XX2VA, XVARC, XBF_MASK, XX2UIM4_MASK, XX2BFD_MASK, XX2DCMXS_MASK, XVA_MASK, XRLA_MASK, XBFRARB_MASK, XLRAND_MASK, POWER9, PPCVEC3, PPCVSX3): New defines. (powerpc_opcodes) <ps_cmpu0, ps_cmpo0, ps_cmpu1, ps_cmpo1, fcmpu, fcmpo, ftdiv, ftsqrt>: Use XBF_MASK. <mcrxr>: Use XBFRARB_MASK. <addpcis, bcdcfn., bcdcfsq., bcdcfz., bcdcpsgn., bcdctn., bcdctsq., bcdctz., bcds., bcdsetsgn., bcdsr., bcdtrunc., bcdus., bcdutrunc., cmpeqb, cmprb, cnttzd, cnttzd., cnttzw, cnttzw., copy, copy_first, cp_abort, darn, dtstsfi, dtstsfiq, extswsli, extswsli., ldat, ldmx, lwat, lxsd, lxsibzx, lxsihzx, lxssp, lxv, lxvb16x, lxvh8x, lxvl, lxvll, lxvwsx, lxvx, maddhd, maddhdu, maddld, mcrxrx, mfvsrld, modsd, modsw, modud, moduw, msgsync, mtvsrdd, mtvsrws, paste, paste., paste_last, rmieg, setb, slbieg, slbsync, stdat, stop, stwat, stxsd, stxsibx, stxsihx, stxssp, stxv, stxvb16x, stxvh8x, stxvl, stxvll, stxvx, subpcis, urfid, vbpermd, vclzlsbb, vcmpneb, vcmpneb., vcmpneh, vcmpneh., vcmpnew, vcmpnew., vcmpnezb, vcmpnezb., vcmpnezh, vcmpnezh., vcmpnezw, vcmpnezw., vctzb, vctzd, vctzh, vctzlsbb, vctzw, vextractd, vextractub, vextractuh, vextractuw, vextsb2d, vextsb2w, vextsh2d, vextsh2w, vextsw2d, vextublx, vextubrx, vextuhlx, vextuhrx, vextuwlx, vextuwrx, vinsertb, vinsertd, vinserth, vinsertw, vmul10cuq, vmul10ecuq, vmul10euq, vmul10uq, vnegd, vnegw, vpermr, vprtybd, vprtybq, vprtybw, vrldmi, vrldnm, vrlwmi, vrlwnm, vslv, vsrv, wait, xsabsqp, xsaddqp, xsaddqpo, xscmpeqdp, xscmpexpdp, xscmpexpqp, xscmpgedp, xscmpgtdp, xscmpnedp, xscmpoqp, xscmpuqp, xscpsgnqp, xscvdphp, xscvdpqp, xscvhpdp, xscvqpdp, xscvqpdpo, xscvqpsdz, xscvqpswz, xscvqpudz, xscvqpuwz, xscvsdqp, xscvudqp, xsdivqp, xsdivqpo, xsiexpdp, xsiexpqp, xsmaddqp, xsmaddqpo, xsmaxcdp, xsmaxjdp, xsmincdp, xsminjdp, xsmsubqp, xsmsubqpo, xsmulqp, xsmulqpo, xsnabsqp, xsnegqp, xsnmaddqp, xsnmaddqpo, xsnmsubqp, xsnmsubqpo, xsrqpi, xsrqpix, xsrqpxp, xssqrtqp, xssqrtqpo, xssubqp, xssubqpo, xststdcdp, xststdcqp, xststdcsp, xsxexpdp, xsxexpqp, xsxsigdp, xsxsigqp, xvcmpnedp, xvcmpnedp., xvcmpnesp, xvcmpnesp., xvcvhpsp, xvcvsphp, xviexpdp, xviexpsp, xvtstdcdp, xvtstdcsp, xvxexpdp, xvxexpsp, xvxsigdp, xvxsigsp, xxbrd, xxbrh, xxbrq, xxbrw, xxextractuw, xxinsertw, xxperm, xxpermr, xxspltib>: New instructions. <doze, nap, sleep, rvwinkle, waitasec, lxvx, stxvx>: Disable on POWER9. <tlbiel, tlbie, sync, slbmfev, slbmfee>: Add additional operands. include/elf/ * ppc.h (R_PPC_REL16DX_HA): New reloction. * ppc64.h (R_PPC64_REL16DX_HA): Likewise. bfd/ * elf32-ppc.c (ppc_elf_howto_raw): Add R_PPC_REL16DX_HA. (ppc_elf_reloc_type_lookup): Handle R_PPC_REL16DX_HA. (ppc_elf_addr16_ha_reloc): Likewise. (ppc_elf_check_relocs): Likewise. (ppc_elf_relocate_section): Likewise. (is_insn_dq_form): Handle lxv and stxv instructions. * elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_REL16DX_HA. (ppc64_elf_reloc_type_lookup): Handle R_PPC64_REL16DX_HA. (ppc64_elf_ha_reloc): Likewise. (ppc64_elf_check_relocs): Likewise. (ppc64_elf_relocate_section): Likewise. * bfd-in2.h: Regenerate. * libbfd.h: Likewise. * reloc.c (BFD_RELOC_PPC_REL16DX_HA): New. elfcpp/ * powerpc.h (R_POWERPC_REL16DX_HA): Define. gas/ * doc/as.texinfo (Target PowerPC): Document -mpower9 and -mpwr9. * doc/c-ppc.texi (PowerPC-Opts): Likewise. * config/tc-ppc.c (md_show_usage): Likewise. (md_assemble): Handle BFD_RELOC_PPC_REL16DX_HA. (md_apply_fix): Likewise. (ppc_handle_align): Handle power9's group ending nop. gas/testsuite/ * gas/ppc/altivec3.s: New test. * gas/ppc/altivec3.d: Likewise. * gas/ppc/vsx3.s: Likewise. * gas/ppc/vsx3.d: Likewise. * gas/ppc/power9.s: Likewise. * gas/ppc/power9.d: Likewise. * gas/ppc/ppc.exp: Run them. * gas/ppc/power8.s <lxvx, lxvd2x, stxvx, stxvd2x>: Add new tests. * gas/ppc/power8.d: Likewise. * gas/ppc/vsx.s: <lxvx, stxvx>: Rename invalid mnemonics ... <lxvd2x, stxvd2x>: ...to this. * gas/ppc/vsx.d: Likewise. gold/ * gold/powerpc.cc (Powerpc_relocate_functions::addr16_dq): New function. (Powerpc_relocate_functions::addr16dx_ha): Likewise. (Target_powerpc::Scan::local): Handle R_POWERPC_REL16DX_HA. (Target_powerpc::Scan::global): Likewise. (Target_powerpc::Relocate::relocate): Likewise. ld/testsuite/ * ld-powerpc/addpcis.d: New test. * ld-powerpc/addpcis.s: New test. * ld-powerpc/powerpc.exp: Run it.
2015-11-09Remove unnecessary target dependencies on relocation format.Cary Coutant1-1/+4
2015-11-09 Cary Coutant <ccoutant@gmail.com> Vladimir Radosavljevic <Vladimir.Radosavljevic@imgtec.com> gold/ * copy-relocs.h (Copy_relocs::copy_reloc): Replace reloc parameter with type, offset, addend. (Copy_relocs::save): Likewise. * copy-relocs.cc (Copy_relocs::copy_reloc): Likewise. (Copy_relocs::save): Likewise. * aarch64.cc (Target_aarch64::copy_reloc): Pass r_type, r_offset, and r_addend to Copy_relocs::copy_reloc. * arm.cc (Target_arm::copy_reloc): Likewise. * i386.cc (Target_i386::copy_reloc): Likewise. * mips.cc (Target_mips::copy_reloc): Likewise. * powerpc.cc (Target_powerpc::copy_reloc): Likewise. * s390.cc (Target_s390::copy_reloc): Likewise. * sparc.cc (Target_sparc::copy_reloc): Likewise. * tilegx.cc (Target_tilegx::copy_reloc): Likewise. * x86_64.cc (Target_x86_64::copy_reloc): Likewise.
2015-10-28Support 64-bit entry size in SHT_HASH (for s390).Marcin Kościelnicki1-4/+8
gold/ * dynobj.cc (Dynobj::create_elf_hash_table): Create hash table with target-specific entry size. (Dynobj::sized_create_elf_hash_table): Add size template parameter. * dynobj.h (Dynobj::sized_create_elf_hash_table): Likewise. * layout.cc (Layout::create_dynamic_symtab): Set entsize to hash_entry_size. * target.h (Target::hash_entry_size): New method. (Target::Target_info::hash_entry_size): New data member. * aarch64.cc (Target_aarch64::aarch64_info): Add hash_entry_size. * arm.cc (Target_arm::arm_info): Likewise. (Target_arm_nacl::arm_nacl_info): Likewise. * i386.cc (Target_i386::i386_info): Likewise. (Target_i386_nacl::i386_nacl_info): Likewise. (Target_iamcu::iamcu_info): Likewise. * mips.cc (Target_mips::mips_info): Likewise. (Target_mips_nacl::mips_nacl_info): Likewise. * powerpc.cc (Target_powerpc::powerpc_info): Likewise. * sparc.cc (Target_sparc::sparc_info): Likewise. * tilegx.cc (Target_tilegx::tilegx_info): Likewise. * x86_64.cc (Target_x86_64::x86_64_info): Likewise. (Target_x86_64_nacl::x86_64_nacl_info): Likewise. * testsuite/testfile.cc (Target_test::test_target_info): Likewise.
2015-09-02[GOLD] ppc64 out-of-line register save/restore functionsAlan Modra1-17/+69
Gold version of a4b6fadd. Don't emit long branch or plt branch stubs to save/restore functions. Copy them instead. PR 18878 * powerpc.cc (Target_powerpc): Add savres_section_ and accessor. (Target_powerpc::Branch_info::make_stub): Determine whether long branch stub is for save/restore function. (Branch_stub_ent): Add save_res_, and extra parm to constructor. (Stub_table): Add need_save_res_. (Stub_table:clear_stubs): Clear need_save_res_. (Stub_table:set_address_and_size): Add save/restore section size. (Stub_table::add_long_branch_entry): Add save_res param. Set need_save_res_, but don't add space for save/restore stubs. (Stub_table::find_long_branch_entry): Return offset to local copy of save/restore func. (Stub_table::do_write): Don't output save/restore stubs. Instead copy the save/restore functions. (Output_data_save_res:contents): New accessor. (Target_powerpc::define_save_restore_funcs): Set savres_section_.
2015-08-20gold --emit-relocsAlan Modra1-2/+4
A symbol value in an ELF final linked binary is absolute, in contrast to a relocatable object file where the value is section relative. For --emit-relocs it is therefore incorrect to use the value of a section symbol as the addend when adjusting relocs against input section symbols to output section symbols. PR gold/18846 * target-reloc.h (relocate_relocs <RELOC_ADJUST_FOR_SECTION_RELA>): Subtract os->address() from addend. * powerpc.cc (relocate_relocs): Likewise.
2015-05-16[GOLD] Add PowerPC64 -fsplit-stack supportAlan Modra1-2/+120
PowerPC64 ELFv1 requires a tweak to find_functions in order to return code addresses, rather than OPD entry addresses. * reloc.cc (Sized_relobj_file::find_functions): Use function_location. * powerpc.cc (Target_powerpc::do_calls_non_split): New function. (addi_12_1, addis_2_12, addis_12_1, cmpld_7_12_0): New constants. (lis_0): Rename from lis_0_0.
2015-05-02Change Section_id type to use Relobj* instead of Object*.Cary Coutant1-6/+6
2015-04-29 Cary Coutant <cary@google.com> Rafael Ávila de Espíndola <rafael.espindola@gmail.com> gold/ * gc.h (Garbage_collection::is_section_garbage): Change Object* to Relobj*. (Garbage_collection::add_reference): Likewise. (Garbage_collection::gc_process_relocs): Likewise. Don't push object/shndx pair onto *secvec for dynamic objects. Don't follow relocations pointing to dynamic objects for GC. * icf.cc (Icf::find_identical_sections): Change Object* to Relobj*. (Icf::unfold_section): Likewise. (Icf::is_section_folded): Likewise. (Icf::get_folded_section): Likewise. * icf.h: (Icf::get_folded_section): Likewise. (Icf::unfold_section): Likewise. (Icf::is_section_folded): Likewise. (Icf::section_has_function_pointers): Likewise. (Icf::set_section_has_function_pointers): Likewise. * object.h (Section_id): Likewise. (Const_section_id): Likewise. * output.cc (Output_section::update_section_layout): Likewise. * output.h: (Output_section_lookup_maps::find_relaxed_input_section): Likewise. * plugin.cc (update_section_order): Likewise. (unique_segment_for_sections): Likewise. * powerpc.cc (Powerpc_relobj::add_reference): Likewise. (Target_powerpc::do_gc_add_reference): Likewise. (Target_powerpc::gc_process_relocs): Likewise. (Target_powerpc::do_gc_add_reference): Likewise. * symtab.cc (Symbol_table::is_section_folded): Likewise. (Symbol_table::gc_mark_symbol): Likewise. * symtab.h: (Symbol_table::is_section_folded): Likewise. * target.h: (Sized_target::gc_add_reference): Likewise. (Sized_target::do_gc_add_reference): Likewise.
2015-04-28Tidy PowerPC gold find_global_entry usesAlan Modra1-17/+25
Completely removing the assert probably wasn't the best idea, so reinstate it for allocated sections. Also cope with debug info potentially referring to a missing plt call stub. And a tidy. find_global_entry now returns an Address, so make temps holding the return value of type Address, and compare against invalid_address. * powerpc.cc (Target_powerpc::do_dynsym_value): Use Address rather than unsigned int for find_global_entry result temp. Compare against invalid_address. (Target_powerpc::do_plt_address_for_global): Likewise. (Target_powerpc::Relocate::relocate): Likewise. Don't assert on plt call stub existence for debug info. Do assert for plt and global entry stub existence if an alloc section.
2015-04-28PowerPC gold assertion on missing global entry stubAlan Modra1-3/+6
Global entry stubs are used on ELFv2 to provide addresses for functions not defined in a non-PIC executable but whose address is taken, in much the same way as PLT stub code is used on other targets to provide function addresses. We don't want to insert a global entry stub just because (bogus) debug info refers to the address of a non-local function, but we also don't want gold to die. * powerpc.cc (Target_powerpc::Relocate::relocate): Don't assert on missing global entry stub due to bogus debug info.
2015-04-17Use LIFO instead of FIFO to implement gc's transitive closure.Rafael Ávila de Espíndola1-2/+3
FIFO is harder to implement and has less locality than LIFO. It is also not necessary to implement a transitive closure, a LIFO works just as well.
2015-03-24PR18147, relocation overflow when --unresolved-symbols=ignore-allAlan Modra1-1/+1
If ignoring unresolved symbols, ignore reloc overflows too. If not ignoring unresolved symbols we will report an error about the symbol being undefined, making any report about reloc overflow superfluous. PR18147 * powerpc.cc (Target_powerpc::Relocate::relocate): Don't report relocation errors for branches to strong undefined symbols.
2015-02-24PowerPC64 GOLD: complain on misaligned _DS relocsAlan Modra1-3/+4
PR 18010 * powerpc.cc (Powerpc_relocate_functions::addr16_ds): Always complain if value is not a multiple of four. (Target_powerpc::Relocate::relocate): Correct handling of R_POWERPC_GOT_TPREL16 and R_POWERPC_GOT_TPREL16_LO for ppc64.
2015-02-18Fix gold error: hidden symbol '...' is not defined locallyAlan Modra1-0/+1
Found when applying relocs in .debug that reference removed functions. PR 17954 * powerpc.cc (Global_symbol_visitor_opd::operator()): Set default visibility.
2015-01-29Correct GOLD PowerPC64 local-dynamic TLS linker optimizationAlan Modra1-6/+10
Similar to b86ac8e3 * powerpc.cc (Target_powerpc::Relocate::relocate): Correct GOT_TLSLD and GOT_TLSGD to LE optimization.
2015-01-22[GOLD] Correct powerpc64 ifunc plt entry testAlan Modra1-4/+4
Found when attempting to build an ELFv2 Linux kernel. We don't generally need a plt entry for ELFv2 got relocs, only on ifunc, just like ppc32. * powerpc.cc (Target_powerpc::Scan::local <got relocs>): Correct condition for need of ifunc plt entry. (Target_powerpc::Scan::global <got relocs>): Likewise.
2015-01-02ChangeLog rotatation and copyright year updateAlan Modra1-1/+1
2014-12-22gold/Cary Coutant1-1/+2
* powerpc.cc (Target_powerpc::relocate): Fix overflow check.
2014-12-04PowerPC gold, fix 32-bit branch address arithmeticAlan Modra1-5/+6
Mixing 64-bit and 32-bit types led to the wrong promotions. Keep calculation in same type. Also fix a case where PLTREL25 reloc addend should be ignored. * Powerpc.cc (Target_powerpc::Branch_info::make_stub): Ignore addend of PLTREL24 reloc when not generating a plt stub. Make max_branch_offset an "Address". (Stub_table::can_read_stub): Make max_branch_offset an "Address". (Target_powerpc::Relocate::relocate): Likewise.
2014-12-04powerpc gold, work around pr17670Alan Modra1-23/+31
pr17670 is about an assert triggering on a branch to an undefined weak symbol, the symbol being undefined due to dropping its comdat group section. (Well sort of. The symbol is actually defined in an .opd section which isn't part of the group, but the code section the opd entry points at is dropped.) So don't assert. Also, don't make long branch stubs to such symbols, and arrange to have target-reloc.h code warn when applying relocs that use the sym. PR 17670 * symtab.cc (Symbol::set_undefined): Remove assertion. * powerpc.cc (Target_powerpc::symval_for_branch): Don't assert on symbols defined in discarded sections, instead return false. Rearrange params, update all callers. (Target_powerpc::Branch_info::make_stub): Don't make stubs for branches to syms in discarded sections. (Global_symbol_visitor_opd::operator()): Set discarded opd syms undefined and flag as discarded. (Target_powerpc::Relocate::relocate): Localize variable.
2014-12-04powerpc gold, fix pr17566Alan Modra1-3/+17
Code stolen from arm.cc. PR 17566 * powerpc.cc (Target_powerpc::Scan::local): Use add_local_section when adding dynamic relocations against section symbols.
2014-11-26Retry powerpc gold stub grouping when groups prove too largeAlan Modra1-132/+211
An unusually large number of stubs can result in the default section group size being too large; sections plus stubs exceed the range of a branch. Restarting the relaxation pass with a smaller group size can sometimes help. * powerpc.cc (struct Stub_table_owner): New. (Powerpc_relobj): Rename stub_table_ to stub_table_index_, an unsigned int vector. Update all references. (powerpc_relobj::set_stub_table): Take an unsigned int param rather than a Stub_table. Update callers. (Powerpc_relobj::clear_stub_table): New function. (Target_powerpc): Add relax_failed_, relax_fail_count_ and stub_group_size_ vars. (Target_powerpc::new_stub_table): Delete. (max_branch_delta): New function, extracted from.. (Target_powerpc::Relocate::relocate): ..here.. (Target_powerpc::Branch_info::make_stub): ..and here. Return status on whether stub created successfully. (Stub_control::Stub_control): Add "no_size_errors" param. Move default sizing to.. (Target_powerpc::do_relax): ..here. Init stub_group_size_ and reduce on relax failure. (Target_powerpc::group_sections): Add "no_size_errors" param. Use stub_group_size_. Set up group info in a temp vector, before building Stub_table vector. Account for input sections possibly already converted to relaxed sections. (Stub_table::init): Delete. Merge into.. (Stub_table::Stub_table): ..here. (Stub_table::can_reach_stub): New function. (Stub_table::add_plt_call_entry): Add "from" parameter and return true iff stub could be reached. (Stub_table::add_long_branch_entry): Similarly. Add "r_type" param too. (Stub_table::clear_stubs): Add "all" param.
2014-11-26[GOLD] PowerPC relaxation corner caseAlan Modra1-0/+9
It's possible for the section grouping code to decide that the last section looked at (the first section by address) doesn't fit into a group. In one case that section is already a group owner and that is handled correctly. In other cases the section should be put into its own group. Like this: * powerpc.cc (Stub_control::set_output_and_owner): New function. (Target_powerpc::group_sections): Use it.
2014-11-21PPC gold doesn't check for overflow properlyAlan Modra1-4/+4
* powerpc.cc (Target_powerpc::Relocate::relocate): Correct test for undefined weaks.
2014-11-20PPC gold doesn't check for overflow properlyAlan Modra1-37/+49
Corrects overflow test for rel14, addr14, rel24, addr24 branch relocs, and prints an information message to give a hint as to how a branch that can't reach a stub might be cured. bfd/ * elf64-ppc.c (group_sections): Init stub14_group_size from --stub-group-size parameter divided by 1024. gold/ * powerpc.cc (Stub_control::Stub_control): Init stub14_group_size_ from --stub-group-size parameter divided by 1024. (Powerpc_relocate_functions::rela, rela_ua): Add fieldsize template parameter. Update all uses. (Target_powerpc::Relocate::relocate): Rename has_plt_value to has_stub_value. Set for long branches. Don't report overflow for branch to undefined weak symbols. Print info message on overflowing branch to stub.
2014-11-20Default powerpc64 to --plt-thread-safe for GoAlan Modra1-0/+2
Go is multi-threaded, so use thread-safe plt stubs. __go_go doesn't actually start threads, but is a convenient libgo function with a reasonably unique name that is called by all Go executables. (Threads are started by a static function of libgo, runtime_newosproc, called by a whole lot of global functions, including runtime_starttheworld and runtime_main.) bfd/ * elf64-ppc.c (ppc64_elf_size_stubs): Add __go_go to thread_starters. gold/ * powerpc.cc (Target_powerpc::do_relax): Add __go_go to thread_starters.
2014-10-22[GOLD] Add gcc-4.9 libgomp symbols requiring --plt-thread-safe for power7Alan Modra1-0/+6
As for bfd.ld. Refer 2300b5a14 * powerpc.cc (do_relax): Add gcc-4.9 libgomp functions to thread_starter.
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