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2015-12-10ld -r doesn't need plugin for slim lto objectH.J. Lu2-1/+8
Plugin isn't required on slim lto object for relocatable link. PR ld/19317 * symtab.cc (Symbol_table::add_from_relobj): Don't complain plugin needed to handle slim lto object for relocatable link.
2015-12-09[GOLD] PowerPC style fixAlan Modra2-22/+33
* 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 Modra2-2/+72
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 Modra16-229/+146
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 Modra2-0/+53
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.
2015-12-03Take addend into account when making GOT entries for local symbols.Vladimir Radosavljevic5-27/+244
gold/ * object.cc (Sized_relobj::do_for_all_local_got_entries): Use Local_got_entry_key for searching in local_got_offsets_. * object.h (class Local_got_entry_key): New class. (Relobj::local_has_got_offset): New overloaded method. (Relobj::local_got_offset): Likewise. (Relobj::set_local_got_offset): Likewise. (Relobj::do_local_has_got_offset): Add addend argument. (Relobj::do_local_got_offset): Likewise. (Relobj::do_set_local_got_offset): Likewise. (Sized_relobj::do_local_has_got_offset): Add addend argument, and use Local_got_entry_key for searching through local_got_offsets_. (Sized_relobj::do_local_got_offset): Likewise. (Sized_relobj::do_set_local_got_offset): Likewise. (Sized_relobj::Local_got_offsets): Change type of the key from unsigned int to Local_got_entry_key, and add hash and equal_to. * output.cc (Got_entry::write): Take addend into account for calculating value of the local symbol for GOT. (Output_data_got::add_local): New definition of overloaded method. (Output_data_got::add_local_with_rel): Likewise. (Output_data_got::add_local_pair_with_rel): Likewise. * output.h (Output_data_got::add_local): New declaration of overloaded method.
2015-11-25Adjust local symbol value in relocatable link to be relative to section.Cary Coutant2-2/+12
gold/ PR gold/19291 * object.cc (Sized_relobj_file::write_local_symbols): If relocatable, subtract section address from symbol value.
2015-11-25[GOLD] Align PowerPC64 GOTAlan Modra2-1/+9
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 Modra2-2/+6
* powerpc.cc (Target_powerpc::Scan::get_reference_flags): Correct GOT16 and TOC16 relocs to RELATIVE_REF.
2015-11-14Fix problem where bss symbols for copy relocations are marked local.Cary Coutant2-2/+10
gold/ PR gold/19244 PR gold/18548 * symtab.cc (Symbol_table::do_define_in_output_data): Check for forced local symbols only for predefined symbols.
2015-11-11Add assembler, disassembler and linker support for power9.Peter Bergner2-5/+73
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.
2015-11-09Recognize .pdr debug sections.Vladimir Radosavljevic2-1/+7
gold/ * layout.h (Layout::is_debug_info_section): Recognize .pdr debug sections.
2015-11-09Remove unnecessary target dependencies on relocation format.Cary Coutant12-23/+78
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.
2015-11-05Revert patch for PR 19119, which led to PR 19172 and 19197.Cary Coutant3-11/+12
Gold does not support all the emulations that Gnu ld does, and supports only one spelling per target. The -m option is used only in the rare case where there are no ELF input files, and we produce an empty output file. In those cases, users are expected to supply a -m option naming one of the supported emulations. In the many cases where a build script provides an unnecessary -m option naming an emulation that gold does not support, we will simply ignore the option, as we did before the reverted patch. gold/ PR gold/19119 PR gold/19172 PR gold/19197 Revert commit 6457197210144f50a696097c0d308d81d46d5510: 2015-10-16 H.J. Lu <hongjiu.lu@intel.com> * options.h (General_options): Remove "obsolete" from -m. * parameters.cc (set_parameters_target): Check if input target is compatible with output emulation set by "-m emulation".
2015-11-05Add aarch64-specific --no-apply-dynamic-relocs option.Cary Coutant3-0/+37
With --no-apply-dynamic-relocs on aarch64 targets, gold will not apply link-time values for absolute relocations that become dynamic relocations. This provides a workaround for broken Android dynamic linkers that use the link-time value as an extra addend to the relocation. gold/ PR gold/19163 * aarch64.cc (Target_aarch64::Relocate::relocate): Don't apply certain relocations if --no-apply-dynamic-relocs is set. * options.h (--apply-dynamic-relocs): New aarch64-specific option.
2015-11-03[GOLD] Regenerate POTFILES.in to add s390.ccAlan Modra2-0/+5
* po/POTFILES.in: Regenerate.
2015-10-30Updated (simplified) Chinese translations for ld, bfd, binutils and gold.Nick Clifton2-0/+3603
* po/zh_CN.po: Updated (simplified) Chinese translation.
2015-10-29Make GOT entry size target-dependentH.J. Lu4-4/+33
The GOT entry size is target-dependent. This patch adds a got_entry_size function to Sized_target class so that a target can provide a value different from default. PR gold/19184 * incremental.cc (Got_plt_view_info): Add got_entry_size. (Local_got_offset_visitor::visit): Replace got_entry_size_ with info_.got_entry_size. (Local_got_offset_visitor::got_entry_size_): Removed. (Global_got_offset_visitor::visit): Replace got_entry_size_ with info_.got_entry_size. (Global_got_offset_visitor::got_entry_size_): Removed. (Output_section_incremental_inputs::write_got_plt): Initialize view_info.got_entry_size. * target.h (Sized_target::got_entry_size): New virtual function. * x86_64.cc (Target_x86_64::got_entry_size): New function.
2015-10-28Add __attribute__((__aligned__(1))) to unaligned symbols from scripts (for ↵Marcin Kościelnicki5-14/+28
s390). gold/ * testsuite/binary_test.cc: Add __attribute__((aligned(1))). * testsuite/script_test_12a.c: Likewise. * testsuite/script_test_1a.cc: Likewise. * testsuite/script_test_2.cc: Likewise.
2015-10-28Make debug_msg.sh more open-minded about line numbers (needed for s390).Marcin Kościelnicki2-19/+23
gold/ * testsuite/debug_msg.sh: Accept more fuzz in line numbers.
2015-10-28Fix empty string alignment in .rodata.str*Marcin Kościelnicki2-3/+11
gold/ PR gold/18959 * stringpool.cc (Stringpool_template::new_key_offset): Align all strings, even zero-length. (Stringpool_template::set_string_offsets):
2015-10-28Add s390 backend.Marcin Kościelnicki8-7/+4380
elfcpp/ * s390.h: New file. gold/ * s390.cc: New file. * Makefile.am (TARGETSOURCES): Add s390.cc. (ALL_TARGETOBJS): Add s390.o. * Makefile.in: Regenerate. * configure.ac: Add s390 support. * configure: Regenerate. * configure.tgt: Add s390-*-* and s390x-*-*. * testsuite/icf_safe_test.sh (arch_specific_safe_fold): Add s390 support.
2015-10-28Add 64-bit archive support.Marcin Kościelnicki3-6/+38
gold/ * archive.cc (Archive::sym64name): New const. (Archive::setup): Add support for SYM64 armap. (Archive::read_armap): Likewise. (Archive::interpret_header): Likewise. (Archive::const_iterator::read_next_header): Likewise. * archive.h (Archive::sym64name): New const. (Archive::read_armap): Add mapsize template parameter.
2015-10-28Support 64-bit entry size in SHT_HASH (for s390).Marcin Kościelnicki14-46/+134
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.
2015-10-28Check R_386_GOT32/R_386_GOT32X without base registerH.J. Lu2-2/+32
The R_386_GOT32 and R_386_GOT32X relocations may be used without base register: movl bar@GOT, %eax Its calculation is G + A, instead of G + A - GOT, and it can only used to generate non-PIC executable. Include the .got.plt section address for R_386_GOT32 and R_386_GOT32X relocations without base register. Don't allow R_386_GOT32 and R_386_GOT32X relocations without base register when making a PIC output. PR gold/19177 * i386.cc (Target_i386::Relocate::relocate): Check R_386_GOT32 and R_386_GOT32X relocations without base register.
2015-10-27Patch for PR gold/19042 - unsupported reloc 311/312.Han Shen2-0/+30
gold/ * aarch64.cc (Target_aarch64::Scan::local): Add support for reloc 311/312.
2015-10-22Gold: Don't fail on R_X86_64_[REX_]GOTPCRELX relocationsH.J. Lu2-2/+31
This patch updates gold to treat the R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX relocations proposed in https://groups.google.com/forum/#!topic/x86-64-abi/n9AWHogmVY0 the same as R_X86_64_GOTPCREL. FIXME: Gold should perform the transformations as suggested. elfcpp/ * x86_64.h (R_X86_64_GOTPCRELX): New. (R_X86_64_REX_GOTPCRELX): Likewise. gold/ * x86_64.cc (Target_x86_64<size>::Scan::get_reference_flags): Treat R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX the same as R_X86_64_GOTPCREL. (Target_x86_64<size>::Scan::local): Likewise. (Target_x86_64<size>::Scan::possible_function_pointer_reloc): Likewise. (Target_x86_64<size>::Scan::global): Likewise. (Target_x86_64<size>::Relocate::relocate): Likewise. (Target_x86_64<size>::Relocatable_size_for_reloc::get_size_for_reloc): Likewise.
2015-10-22Gold: Don't fail on R_386_GOT32X relocationH.J. Lu2-0/+17
This patch updates gold to treat the R_386_GOT32X relocation proposed in https://groups.google.com/forum/#!topic/ia32-abi/GbJJskkid4I the same as R_386_GOT32. FIXME: Gold should perform the transformations as suggested. elfcpp/ * i386.h (R_386_GOT32X): New. gold/ * i386.cc (Target_i386::Scan::get_reference_flags(): Treat R_386_GOT32X the same as R_386_GOT32. (Target_i386::Scan::local): Likewise. (Target_i386::Scan::possible_function_pointer_reloc): Likewise. (Target_i386::Scan::global): Likewise. (Target_i386::Relocate::relocate): Likewise. (Target_i386::Relocatable_size_for_reloc::get_size_for_reloc): Likewise.
2015-10-20Feed right input object to x86_64_mov_to_lea1[12]H.J. Lu3-4/+12
x86_64_mov_to_lea1.o is a 64-bit x86-64 object and x86_64_mov_to_lea2.o is a 32-bit x86-64 object. x86_64_mov_to_lea11 should use x86_64_mov_to_lea2.o and x86_64_mov_to_lea12 should use x86_64_mov_to_lea1.o. * testsuite/Makefile.am (x86_64_mov_to_lea11): Replace x86_64_mov_to_lea1.o with x86_64_mov_to_lea2.o. (x86_64_mov_to_lea12): Replace x86_64_mov_to_lea2.o with x86_64_mov_to_lea1.o. * testsuite/Makefile.in: Regenerated.
2015-10-16Don't ignore "-m emulation" command line optionH.J. Lu3-1/+18
Gold shouldn't ignore "-m emulation" command line option, which may lead to incorrect output. PR gold/19119 * options.h (General_options): Remove "obsolete" from -m. * parameters.cc (set_parameters_target): Check if input target is compatible with output emulation set by "-m emulation".
2015-10-13Add EM_IAMCU support to goldH.J. Lu2-0/+64
elfcpp/ PR gold/19118 * elfcpp.h (EM): Add EM_IAMCU. gold/ PR gold/19118 * i386.cc (Target_iamcu): New class. (Target_selector_iamcu): Likewise. (Target_iamcu::iamcu_info): New variable. (target_selector_iamcu): Likewise.
2015-10-07gold: fix ABI pagesize for aarch64Andreas Schwab2-4/+8
* aarch64.cc (aarch64_info): Set abi_pagesize to 64K.
2015-10-06Fix bug when applying R_SPARC_GOTDATA_OP* relocations to local symbols.Cary Coutant2-9/+16
When applying a GOTDATA_OP* relocation to a local symbol, the addend is being applied after getting the value of the symbol. When the relocation refers to a merge section, however, the addend must be provided when computing the symbol value, since the contents of the section may have been rearranged. gold/ PR gold/18855 * sparc.cc (Sparc_relocate_functions::gdop_hix22): Remove addend parameter. (Sparc_relocate_functions::gdop_lox10): Likewise. (Target_sparc::Relocate::relocate): Use addend when computing symbol value for R_SPARC_GOTDATA_OP*.
2015-09-07Fix internal error caused by IFUNC patch.Cary Coutant3-9/+16
The previous commit to fix PR gold/18886 converted STT_IFUNC to STT_FUNC when resolving to a symbol defined in a shared library. This leads to an internal error if the shared library symbol is seen first, as we do not convert the symbol at all. We need to override the STT_IFUNC in add_from_dynobj() instead of in override_base(). gold/ PR gold/18930 PR gold/18886 * resolve.cc (Symbol::override_base): Don't convert IFUNC symbols here. * symtab.cc (Symbol_table::add_from_dynobj): Convert them here instead.
2015-09-02Turn IFUNC symbols from shared libraries into normal FUNC symbolsH.J. Lu3-5/+16
Turn IFUNC symbols from shared libraries into normal FUNC symbols when we are resolving symbol references, instead of when we are writing out the symbol table. PR gold/18886 * resolve.cc (Symbol::override_base): Turn IFUNC symbols from shared libraries into normal FUNC symbols. * symtab.cc (Symbol_table::sized_write_symbol): Assert IFUNC symbols aren't from shared libraries.
2015-09-02[GOLD] ppc64 out-of-line register save/restore functionsAlan Modra2-17/+88
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_.
2015-08-26Fix problem where script specified both address and region for a section.Cary Coutant3-19/+54
If a script specifies both address and region for an output section declaration, gold ignores the region specification. This can lead to bogus "moves backward" errors. This patch fixes gold so that if a section specifies both address and region, it will place the section at the specified address in the region, and update the location counter within the region. gold/ PR gold/18847 * script-sections.cc (Memory_region::set_address): New method. (Script_sections::find_memory_region): Add explicit_only parameter. (Output_section_definition::set_section_addresses): Handle case where script specifies both address and vma region. * script-sections.h (Script_sections::find_memory_region): Add explicit_only parameter.
2015-08-25Fix --no-as-needed when shared library is listed twice on the command line.Cary Coutant3-3/+25
When a shared library is listed twice on the command line, the linker ignores the second mention. If the first mention is in the scope of an --as-needed option, and the second one is under the scope of a --no-as-needed option, the --no-as-needed should take effect, but doesn't. This patch keeps track of the objects we've already seen, and updates the --as-needed flag so that if a shared object is ever seen with --no-as-needed, it will be marked as such. gold/ PR gold/18859 * object.cc (Input_objects::add_object): Store objects in a map, indexed by soname; update as-needed flag when necessary. * object.h (Object::clear_as_needed): New method. (Input_objects::so_names_): Change from set to map.
2015-08-25Fix internal error in gold when script uses section address in assignment.Cary Coutant4-14/+53
When processing assignment expressions in a linker script, gold processes absolute assignments early, but when one of those assignments involves the address of a section that has not yet been finalized, we get an internal error in address. This patch fixes the problem by gracefully returning from expression evaluation even if the address is not yet valid, and deferring the assignment in such a case. gold/ PR gold/14746 * expression.cc (Expression::Expression_eval_info): Add is_valid_pointer field. (Expression::eval_maybe_dot): Add is_valid_pointer parameter. Adjust all callers. (Addr_expression::value_from_output_section): Check whether address is valid. * script.cc (Symbol_assignment::set_if_absolute): Defer assignment if evaluation failed due to address that is not yet valid. * script.h: (Expression::eval_maybe_dot): Add is_valid_pointer parameter.
2015-08-25Fix regression introduced by fix for PR 18703.Cary Coutant2-15/+23
When a user object overrides a versioned definition in a shared object, it's possible to trigger an internal error because the versioned definition we saw didn't override the unversioned definition. This was introduced by the fix for PR 18703. This patch fixes the problem by reordering the tests so that we do not check ret->is_default() until we're confident that the symbol is in fact versioned. gold/ PR gold/18866 PR gold/18703 * symtab.cc (Symbol_table): Reorder conditions to avoid internal error.
2015-08-20gold --emit-relocsAlan Modra3-4/+15
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.
2015-08-18Fix symbol versioning problems in PR 18703.Cary Coutant11-21/+171
If a symbol is defined with ".symver foo,foo@VER", the assembler creates two symbols in the object: one unversioned, and one with the (non-default) version "VER". If foo is listed in a version script, gold would then make the first of those symbols the default version, and would ignore the second symbol as a duplicate, without making it a non-default version. While this is arguably reasonable behavior, it doesn't match Gnu ld behavior, so this patch fixes that by allowing the second definition to override the first by resetting the "default version" indication. Several test cases from the Gnu ld testsuite also exposed another related problem, where a symbol defined with ".symver foo,foo@", placed into a shared library, is not handled properly by gold. This patch also fixes that case, binding the symbol to the base version. gold/ PR gold/18703 * dynobj.cc (Versions::record_version): Handle symbol defined with base version. (Versions::symbol_section_contents): Likewise. * symtab.h (Symbol::set_is_not_default): New class method. (Symbol_table::resolve): Add is_default_version parameter. (Symbol_table::should_override): Likewise. * resolve.cc (Symbol_table::resolve): Add is_default_version parameter, and pass to should_override. Adjust all callers and explicit instantiations. (Symbol_table::should_override): Add is_default_value parameter; allow default version in a dynamic object to override existing definition from same object. * symtab.cc (Symbol_table::add_from_object): Handle case where same symbol is defined as unversioned and non-default version in the same object. * testsuite/Makefile.am (ver_test_13): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/ver_test_4.cc: Add test for symbol with base version. * testsuite/ver_test_4.sh: Likewise. * testsuite/ver_test_13.c: New source file. * testsuite/ver_test_13.script: New version script. * testsuite/ver_test_13.sh: New test case.
2015-08-12[MIPS] Map 'move' to 'or'.Simon Dardis2-16/+26
The MIPS assembly idiom 'move' now maps to the 'or' machine instruction. This change affects microMIPS, MIPS32, MIPS64. 2015-08-12 Simon Dardis <simon.dardis@imgtec.com> opcodes/ * micromips-opc.c (micromips_opcodes): Re-order table so that move based on 'or' is first. * mips-opc.c (mips_builtin_opcodes): Ditto. bfd/ * elfxx-mips.c (STUB_MOVE): Change to use 'or' only. (mips_o32_exec_plt0_entry, mips_n32_exec_plt0_entry, mips_n64_exec_plt0_entry, micromips_insn32_o32_exec_plt0_entry): Update to use 'or' instead of 'addu/daddu'. (_bfd_mips_elf_finish_dynamic_symbol): Update usage of STUB_MOVE. (move_insns_32): Reorder table. gas/ * config/tc-mips.c (move_register): Change to use 'or' only. (s_cpload, s_cpsetup, s_cprestore, s_cpreturn): Update to use or for move. gas/testsuite/ * gas/mips/elf-rel23.d: Update test. * gas/mips/elf-rel23.d: Ditto. * gas/mips/elf-rel23a.d: Ditto. * gas/mips/elf-rel23b.d: Ditto. * gas/mips/elf_e_flags1.d: Ditto. * gas/mips/elf_e_flags2.d: Ditto. * gas/mips/elf_e_flags3.d: Ditto. * gas/mips/elf_e_flags4.d: Ditto. * gas/mips/loc-swap-dis.d: Ditto. * gas/mips/micromips-insn32.d: Ditto. * gas/mips/micromips-noinsn32.d: Ditto. * gas/mips/micromips-trap.d: Ditto. * gas/mips/micromips.d: Ditto. * gas/mips/mips-abi32-pic.d: Ditto. * gas/mips/mips-abi32.d: Ditto. * gas/mips/mips-gp32-fp32-pic.d: Ditto. * gas/mips/mips-gp32-fp32.d: Ditto. * gas/mips/mips-gp32-fp64-pic.d: Ditto. * gas/mips/mips-gp32-fp64.d: Ditto. * gas/mips/mips-gp64-fp32-pic.d: Ditto. * gas/mips/mips-gp64-fp32.d: Ditto. * gas/mips/mips-gp64-fp64-pic.d: Ditto. * gas/mips/mips-gp64-fp64.d: Ditto. * gas/mips/mipsr6@loc-swap-dis.d: Ditto. * gas/mips/tls-o32.d: Ditto. * gas/mips/uld2-eb.d: Ditto. * gas/mips/uld2-el.d: Ditto. * gas/mips/ulw2-eb-ilocks.d: Ditto. * gas/mips/ulw2-eb.d: Ditto. * gas/mips/ulw2-el-ilocks.d: Ditto. * gas/mips/ulw2-el.d: Ditto. * gas/mips/move.d: New test. * gas/mips/move.s: Ditto. * gas/mips/micromips32-move.d: Ditto. * gas/mips/micromips32-move.s: Ditto. * gas/mips/mips.exp: Run the new tests. gold/ * mips.cc (plt0_entry_o32, plt0_entry_n32, plt0_entry_n64, lazy_stub_normal_1, lazy_stub_normal_1_n64, lazy_stub_normal_2, lazy_stub_normal_2_n64, lazy_stub_big, lazy_stub_big_n64, lazy_stub_micromips32_normal_1_n64, lazy_stub_micromips32_normal_2_n64, lazy_stub_micromips32_big, lazy_stub_micromips32_big_n64): Update to use 'or' for move instead of 'addu/daddu'. ld/testsuite/ * ld-mips-elf/compressed-plt-1-n32-mips16.od: Update test. * ld-mips-elf/compressed-plt-1-n32-umips.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-mips16-got.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-mips16-only.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-mips16-word.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-mips16.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-se.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-umips-got.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-umips-word.od: Ditto. * ld-mips-elf/compressed-plt-1-o32-umips.od: Ditto. * ld-mips-elf/jalx-2.dd: Ditto. * ld-mips-elf/mips16-pic-3.dd: Ditto. * ld-mips-elf/pic-and-nonpic-3a.dd: Ditto. * ld-mips-elf/pic-and-nonpic-3b.dd: Ditto. * ld-mips-elf/pic-and-nonpic-5b.dd: Ditto. * ld-mips-elf/pic-and-nonpic-6-n32.dd: Ditto. * ld-mips-elf/pic-and-nonpic-6-o32.dd: Ditto. * ld-mips-elf/stub-dynsym-1-10000.d: Ditto. * ld-mips-elf/stub-dynsym-1-2fe80.d: Ditto. * ld-mips-elf/stub-dynsym-1-7fff.d: Ditto. * ld-mips-elf/stub-dynsym-1-8000.d: Ditto. * ld-mips-elf/stub-dynsym-1-fff0.d: Ditto. * ld-mips-elf/tlsbin-o32.d: Ditto. * ld-mips-elf/tlsdyn-o32-1.d: Ditto. * ld-mips-elf/tlsdyn-o32-2.d: Ditto. * ld-mips-elf/tlsdyn-o32-3.d: Ditto. * ld-mips-elf/tlsdyn-o32.d: Ditto. * ld-mips-elf/tlslib-o32.d: Ditto.
2015-07-27Regenerate configure filesH.J. Lu2-2/+6
bfd/ * configure: Regenerated. binutils/ * configure: Regenerated. gas/ * configure: Regenerated. gold/ * configure: Regenerated. gprof/ * configure: Regenerated. ld/ * configure: Regenerated. opcodes/ * configure: Regenerated.
2015-07-26Make arm_unaligned_reloc test less sensitive to disassembler output format.Doug Kwan3-14/+22
2015-07-24Remove leading/trailing white spaces in ChangeLogH.J. Lu1-56/+56
2015-07-232015-07-23 Ian Coolidge <icoolidge@google.com>Han Shen3-3/+15
Plumb --pic-veneer option for gold. gold/ChangeLog: * arm.cc (Reloc_stub::stub_type_for_reloc): Plumb to stub generation. * options.h (General_options): Add --pic-veneer option.
2015-07-22Don't compare symbol addresses directlyH.J. Lu9-25/+127
GCC 5 will fold symbol address comparison, assuming each symbol has a different address, which leads to abort. We should use separate functions to compare symbol address. PR gold/18663 * testsuite/Makefile.am (script_test_1_SOURCES): Set to script_test_1a.cc script_test_1b.cc. (script_test_11_r.o): Replace script_test_11.o with script_test_11a.o script_test_11b.o. (script_test_11.o): Removed. (script_test_11a.o): New. (script_test_11b.o): Likewise. * testsuite/Makefile.in: Regenerated. * testsuite/script_test_1.h: New file. * testsuite/script_test_1b.cc: Likewise. * testsuite/script_test_11.h: Likewise. * testsuite/script_test_11b.c: Likewise. * testsuite/script_test_1.cc: Renamed to ... * testsuite/script_test_1a.cc: This. Include "script_test_1.h". (main): Call check_int and check_ptr. * testsuite/script_test_11.c: Renamed to ... * testsuite/script_test_11a.c: This. Include "script_test_11.h". (main): Call ptr_equal.
2015-07-22Mark global with hidden attributeH.J. Lu4-3/+10
GCC 5 will generate a relocation for protected symbol: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248 when compiling for a shared library. It is undefined to access protected symbol in IFUNC selector function inside a shared library. PR gold/18628 * testsuite/ifuncdep2.c (global): Change protected to hidden. * testsuite/ifuncmod1.c (global): Likewise. * testsuite/ifuncmod5.c (global): Likewise.
2015-07-22GOLD aarch64 warning fixAlan Modra2-1/+5
aarch64.cc:2026:50: error: integer overflow in expression [-Werror=overflow] Insntype adr_insn = adrp_insn & ((1 << 31) - 1); * aarch64.cc (try_fix_erratum_843419_optimized): Warning fix.
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