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2017-08-30PowerPC TPREL16_HA/LO reloc optimizationAlan Modra1-0/+6
In the TLS GD/LD to LE optimization, ld replaces a sequence like addi 3,2,x@got@tlsgd R_PPC64_GOT_TLSGD16 x bl __tls_get_addr(x@tlsgd) R_PPC64_TLSGD x R_PPC64_REL24 __tls_get_addr nop with addis 3,13,x@tprel@ha R_PPC64_TPREL16_HA x addi 3,3,x@tprel@l R_PPC64_TPREL16_LO x nop When the tprel offset is small, this can be further optimized to nop addi 3,13,x@tprel nop bfd/ * elf64-ppc.c (struct ppc_link_hash_table): Add do_tls_opt. (ppc64_elf_tls_optimize): Set it. (ppc64_elf_relocate_section): Nop addis on TPREL16_HA, and convert insn on TPREL16_LO and TPREL16_LO_DS relocs to use r13 when addis would add zero. * elf32-ppc.c (struct ppc_elf_link_hash_table): Add do_tls_opt. (ppc_elf_tls_optimize): Set it. (ppc_elf_relocate_section): Nop addis on TPREL16_HA, and convert insn on TPREL16_LO relocs to use r2 when addis would add zero. gold/ * powerpc.cc (Target_powerpc::Relocate::relocate): Nop addis on TPREL16_HA, and convert insn on TPREL16_LO and TPREL16_LO_DS relocs to use r2/r13 when addis would add zero. ld/ * testsuite/ld-powerpc/tls.s: Add calls with tls markers. * testsuite/ld-powerpc/tls32.s: Likewise. * testsuite/ld-powerpc/powerpc.exp: Run tls marker tests. * testsuite/ld-powerpc/tls.d: Adjust for TPREL16_HA/LO optimization. * testsuite/ld-powerpc/tlsexe.d: Likewise. * testsuite/ld-powerpc/tlsexetoc.d: Likewise. * testsuite/ld-powerpc/tlsld.d: Likewise. * testsuite/ld-powerpc/tlsmark.d: Likewise. * testsuite/ld-powerpc/tlsopt4.d: Likewise. * testsuite/ld-powerpc/tlstoc.d: Likewise.
2017-08-29[GOLD] PowerPC tls_get_addr_optimizeAlan Modra1-0/+41
This implements the special __tls_get_addr_opt call stub for powerpc gold that returns __thread variable addresses without actually making a call to __tls_get_addr in most cases. Shared libraries that are loaded at program load time (ie. dlopen is not used) have a known layout for their __thread variables, and thus DTPMOD64/DPTREL64 pairs describing those variables can be set up by ld.so for the __tls_get_addr_opt call stub fast exit. Ref https://sourceware.org/ml/libc-alpha/2015-03/msg00626.html I really, really wish I'd used a differently versioned __tls_get_addr symbol than the base symbol to indicate glibc support for the optimized call, rather than having glibc export __tls_get_addr_opt. A lot of the messing around here, flipping symbols from __tls_get_addr to __tls_get_addr_opt, is caused by that decision. About the only benefit is that a user can see at a glance that their disassembled code is calling __tls_get_addr via the fancy call stub.. Anyway, we need references to __tls_get_addr to seem like they were to __tls_get_addr_opt, and in cases like the tsan interceptor, a definition of __tls_get_addr to seem like one of __tls_get_addr_opt as well. That's the reason for Symbol::clear_in_reg and Symbol_table::clone, and why symbols are substituted in Scan::global and other places dealing with dynamic linking. elfcpp/ * elfcpp.h (DT_PPC_OPT): Define. * powerpc.h (PPC_OPT_TLS): Define. gold/ * options.h (tls_get_addr_optimize): New option. * symtab.h (Symbol::clear_in_reg, clone): New functions. (Sized_symbol::clone): New function. (Symbol_table::clone): New function. * resolve.cc (Symbol::clone, Sized_symbol::clone): New functions. * powerpc.cc (Target_powerpc::has_tls_get_addr_opt_, tls_get_addr_, tls_get_addr_opt_): New vars. (Target_powerpc::tls_get_addr_opt, tls_get_addr, is_tls_get_addr_opt, replace_tls_get_addr, set_has_tls_get_addr_opt, stk_linker): New functions. (Target_powerpc::Track_tls::maybe_skip_tls_get_addr_call): Add target param. Update callers. Compare symbols rather than names. (Target_powerpc::do_define_standard_symbols): Init tls_get_addr_ and tls_get_addr_opt_. (Target_powerpc::Branch_info::mark_pltcall): Translate tls_get_addr sym to tls_get_addr_opt. (Target_powerpc::Branch_info::make_stub): Likewise. (Stub_table::define_stub_syms): Likewise. (Target_powerpc::Scan::global): Likewise. (Target_powerpc::Relocate::relocate): Likewise. (add_3_12_2, add_3_12_13, bctrl, beqlr, cmpdi_11_0, cmpwi_11_0, ld_11_1, ld_11_3, ld_12_3, lwz_11_3, lwz_12_3, mr_0_3, mr_3_0, mtlr_11, std_11_1): New constants. (Stub_table::eh_frame_added_): Delete. (Stub_table::tls_get_addr_opt_bctrl_, plt_fde_len_, plt_fde_): New vars. (Stub_table::init_plt_fde): New functions. (Stub_table::add_eh_frame, replace_eh_frame): Move definition out of line. Init and use plt_fde_. (Stub_table::plt_call_size): Return size for tls_get_addr stub. Extract alignment code to.. (Stub_table::plt_call_align): ..this new function. Adjust all callers. (Stub_table::add_plt_call_entry): Set has_tls_get_addr_opt and tls_get_addr_opt_bctrl, and align after that. (Stub_table::do_write): Write out tls_get_addr stub. (Target_powerpc::do_finalize_sections): Emit DT_PPC_OPT PPC_OPT_TLS/PPC64_OPT_TLS bit. (Target_powerpc::Relocate::relocate): Don't check for or modify nop following bl for tls_get_addr stub.
2017-08-29[GOLD] Reduce size of class SymbolAlan Modra1-0/+14
On 64-bit targets there is a 32-bit hole in symbol->u_, and another due to symbol flags exceeding 32 bits. By splitting the union, the total size of the class reduces by one 64-bit word. * symtab.h (Symbol): Split u_ into u1_ and u2_. Adjust accessors to suit. Move plt_offset_ before got_offsets_. * symtab.cc (Symbol::init_fields): Adjust for union change. (Symbol::init_base_output_data): Likewise. (Symbol::init_base_output_segment): Likewise. (Symbol::allocate_base_common): Likewise. (Symbol::output_section): Likewise. (Symbol::set_output_section): Likewise. (Symbol::set_output_segment): Likewise. * resolve.cc (Symbol::override_base): Likewise. (Symbol::override_base_with_special): Likewise.
2017-08-28Fix bad offset calculation for R_AARCH64_TLSDESC_* relocs.Igor Kudrin1-0/+10
If a custom linker script with an unexpected relative layout of .got and .got.plt sections was used, gold might produce a wrong offset when applying R_AARCH64_TLSDESC_* relocations. This patch fixes the issue by calculating "got_tlsdesc_offset" in a more direct way. gold/ * aarch64.cc (Target_aarch64::Relocate::relocate_tls): Make got_tlsdesc_offset signed and fix its calculation. * testsuite/Makefile.am (aarch64_tlsdesc): New test. * testsuite/Makefile.in: Regenerate. * testsuite/aarch64_tlsdesc.s: New test source file. * testsuite/aarch64_tlsdesc.sh: New test script. * testsuite/aarch64_tlsdesc.t: New test linker script.
2017-08-28[GOLD] Symbol flag for PowerPC64 localentry:0 trackingAlan Modra1-0/+16
This patch provides a flag for PowerPC64 ELFv2 use in class Symbol, and modifies Sized_target::resolve to return whether the symbol has been resolved. If not, normal processing continues. I use this for PowerPC64 ELFv2 to keep track of whether a symbol has any definition with non-zero localentry, in order to disable --plt-localentry for that symbol. PR 21847 * powerpc.cc (Target_powerpc::is_elfv2_localentry0): Test non_zero_localentry. (Target_powerpc::resolve): New function. (powerpc_info): Set has_resolve for 64-bit. * target.h (Sized_target::resolve): Return bool. * resolve.cc (Symbol_table::resolve): Continue with normal processing when target resolve returns false. * symtab.h (Symbol::non_zero_localentry, set_non_zero_localentry): New accessors. (Symbol::non_zero_localentry_): New flag bit. * symtab.cc (Symbol::init_fields): Init non_zero_localentry_.
2017-08-08Add configure flag to enable gnu hash style by default.Romain Geissler1-0/+8
ld/ * configure.ac: Add --enable-default-hash-style option. * ldmain.c (main): Set link_info.emit_hash to DEFAULT_EMIT_SYSV_HASH. Set link_info.emit_gnu_hash to DEFAULT_EMIT_GNU_HASH. * configure: Regenerate. * config.in: Regenerate. gold/ * configure.ac: Add --enable-default-hash-style option. * options.h (hash_style): Use DEFAULT_HASH_STYLE as default value. * configure: Regenerate. * config.in: Regenerate.
2017-08-03Add --no-relax option.James Clarke1-0/+5
gold/ * options.h (General_options): Set a non-NULL second help string argument for relax to allow --no-relax.
2017-08-01[GOLD] PowerPC recreate eh_frame for stubs on each relax passAlan Modra1-0/+13
There is a very small but non-zero probability that a stub group contains stubs on one relax pass, but does not on the next. In that case we would get an FDE covering a zero length address range. (Actually, it's even worse. Alignment padding for stubs can mean the address for the non-existent stubs is past the end of the original section to which stubs are attached, and due to the way do_plt_fde_location calculates the length we can get a negative length.) Fixing this properly requires removing the FDE. Also, I have been implementing the __tls_get_addr_opt support for gold, and that stub needs something other than the default FDE. The necessary FDE will depend on the offset to the __tls_get_addr_opt stub, which of course can change during relaxation. That means at the very least, rewriting the FDE on each pass, possibly changing the FDE size. I think that is better done by completely recreating PLT eh_frame FDEs. * ehframe.cc (Fde::operator==): New. (Cie::remove_fde, Eh_frame::remove_ehframe_for_plt): New. * ehframe.h (Fde::operator==): Declare. (Cie::remove_fde, Eh_frame::remove_ehframe_for_plt): Likewise. * layout.cc (Layout::remove_eh_frame_for_plt): New. * layout.h (Layout::remove_eh_frame_for_plt): Declare. * powerpc.cc (Target_powerpc::do_relax): Remove old eh_frame FDEs. (Stub_table::add_eh_frame): Delete eh_frame_added_ condition. Don't add eh_frame for empty stub section. (Stub_table::remove_eh_frame): New.
2017-07-31[GOLD] PowerPC --no-tls-optimizeAlan Modra1-0/+13
This adds a --no-tls-optimize option for people who want to keep __tls_get_addr calls in an executable rather than optimizing such code sequences to IE/LE. Also tidy some formatting errors, rename a variable to better reflect its use, and tweak two functions that create pairs of GOT entries to first check whether the GOT entry already exists before potentially inserting the header via reserve(2). Without the check it is possible to waste one GOT entry. * options.h (no_tls_optimize): New powerpc option. * powerpc.cc (Target_powerpc::abiversion, set_abiversion): Formatting. (Target_powerpc::stk_toc): Formatting, fix comment. (Target_powerpc::Track_tls::tls_get_addr_state): Rename from tls_get_addr. (Target_powerpc::optimize_tls_gd, optimize_tls_ld, optimize_tls_ie): Return TLSOPT_NONE when !tls_optimize. (Target_powerpc::add_global_pair_with_rel): Check for existing reloc before reserving. (Target_powerpc::add_local_tls_pair): Likewise.
2017-07-31PR 21847, PowerPC64 --plt-localentry againAlan Modra1-0/+5
This makes ld warn about --plt-localentry if a version of glibc without the necessary ld.so checks is detected, and revises the documentation. bfd/ * elf64-ppc.c (ppc64_elf_tls_setup): Warn on --plt-localentry without ld.so checks. gold/ * powerpc.cc (Target_powerpc::scan_relocs): Warn on --plt-localentry without ld.so checks. ld/ * ld.texinfo (plt-localentry): Revise.
2017-07-29PR 21847, Don't default PowerPC64 to --plt-localentryAlan Modra1-0/+6
The big comment in ppc64_elf_tls_setup says why. I've also added some code to the bfd linker that catches the -lpthread -lc symbol differences and disable generation of optimized call stubs even when --plt-localentry is activated. Gold doesn't yet have that. PR 21847 bfd/ * elf64-ppc.c (struct ppc_link_hash_entry): Add non_zero_localentry. (ppc64_elf_merge_symbol): Set non_zero_localentry. (is_elfv2_localentry0): Test non_zero_localentry. (ppc64_elf_tls_setup): Default to --no-plt-localentry. gold/ * powerpc.cc (Target_powerpc::scan_relocs): Default to --no-plt-localentry. ld/ * ld.texinfo (plt-localentry): Document.
2017-07-28gold: Add put_ch_reserved to 64-bit Chdr_writeH.J. Lu1-0/+6
The 64-bit ELF compression header has a reserved field. It should be cleared to avoid random bits in it. elfcpp/ PR gold/21857 * elfcpp.h (Chdr_write): Add put_ch_reserved. (Chdr_write<64, true>::put_ch_reserved): New. (Chdr_write<64, false>::put_ch_reserved): Likewise. gold/ PR gold/21857 * compressed_output.cc (Output_compressed_section::set_final_data_size): Call put_ch_reserved to clear the reserved field for 64-bit ELF.
2017-07-26Gold: Fix mips.cc for GCC 4.2H.J. Lu1-0/+5
GCC 4.2 fails to compile "(uint64_t) 0x800080008000" with error: integer constant is too large for ‘long’ type This patch adds "llu" suffix to 0x800080008000 for GCC 4.2. * mips.cc (Mips_relocate_functions): Add "llu" suffix to 0x800080008000.
2017-07-23Correct eh_frame info for __glink_PLTresolveAlan Modra1-0/+7
My PPC64_OPT_LOCALENTRY patch of June 1, git commit f378ab099d, and the later gold change, git commit 7ee7ff7015, added an insn in __glink_PLTresolve which needs a corresponding adjustment in the eh_frame info for asynchronous exceptions to unwind correctly. It would have been OK for both ABIs to use +5 for the advance before restore of LR, since we can put the DW_CFA_restore_extended on any insn after the actual restore and before the r12/r0 copy is clobbered, but it's slightly better to delay as much as possible. There are then more addresses where fewer CFA program insns are executed. bfd/ * elf64-ppc.c (ppc64_elf_size_stubs): Correct advance to restore of LR. gold/ * powerpc.cc (glink_eh_frame_fde_64v2): Correct advance to restore of LR. (glink_eh_frame_fde_64v1): Advance to restore of LR at latest possible insn.
2017-07-18Fix spelling typos.Yuri Chornovian1-0/+9
2017-07-12Add missing gold/ChangeLog entry.Cary Coutant1-0/+12
2017-07-12Update PO filesAlan Modra1-0/+13
bfd/ * po/es.po: Update from translationproject.org/latest/bfd/. * po/fi.po: Likewise. * po/fr.po: Likewise. * po/id.po: Likewise. * po/ja.po: Likewise. * po/ro.po: Likewise. * po/ru.po: Likewise. * po/sr.po: Likewise. * po/sv.po: Likewise. * po/tr.po: Likewise. * po/uk.po: Likewise. * po/vi.po: Likewise. * po/zh_CN.po: Likewise. * po/hr.po: New file from translationproject.org. * configure.ac (ALL_LINGUAS): Add hr. Sort. * configure: Regenerate. binutils/ * po/bg.po: Update from translationproject.org/latest/binutils/. * po/ca.po: Likewise. * po/da.po: Likewise. * po/es.po: Likewise. * po/fi.po: Likewise. * po/fr.po: Likewise. * po/hr.po: Likewise. * po/id.po: Likewise. * po/it.po: Likewise. * po/ja.po: Likewise. * po/ro.po: Likewise. * po/ru.po: Likewise. * po/sk.po: Likewise. * po/sr.po: Likewise. * po/sv.po: Likewise. * po/tr.po: Likewise. * po/uk.po: Likewise. * po/vi.po: Likewise. * po/zh_CN.po: Likewise. * po/zh_TW.po: Likewise. gas/ * po/es.po: Update from translationproject.org/latest/gas/. * po/fi.po: Likewise. * po/fr.po: Likewise. * po/id.po: Likewise. * po/ja.po: Likewise. * po/ru.po: Likewise. * po/sv.po: Likewise. * po/tr.po: Likewise. * po/uk.po: Likewise. * po/zh_CN.po: Likewise. gold/ * po/es.po: Update from translationproject.org/latest/gold/. * po/fi.po: Likewise. * po/fr.po: Likewise. * po/id.po: Likewise. * po/it.po: Likewise. * po/vi.po: Likewise. * po/zh_CN.po: Likewise. * po/ja.po: New file from translationproject.org. * po/sv.po: Likewise. * po/uk.po: Likewise. gprof/ * po/bg.po: Update from translationproject.org/latest/gprof/. * po/da.po: Likewise. * po/de.po: Likewise. * po/eo.po: Likewise. * po/es.po: Likewise. * po/fi.po: Likewise. * po/fr.po: Likewise. * po/ga.po: Likewise. * po/hu.po: Likewise. * po/id.po: Likewise. * po/it.po: Likewise. * po/ja.po: Likewise. * po/ms.po: Likewise. * po/nl.po: Likewise. * po/pt_BR.po: Likewise. * po/ro.po: Likewise. * po/ru.po: Likewise. * po/sr.po: Likewise. * po/sv.po: Likewise. * po/tr.po: Likewise. * po/uk.po: Likewise. * po/vi.po: Likewise. ld/ * po/bg.po: Update from translationproject.org/latest/ld/. * po/da.po: Likewise. * po/es.po: Likewise. * po/fi.po: Likewise. * po/fr.po: Likewise. * po/id.po: Likewise. * po/it.po: Likewise. * po/ja.po: Likewise. * po/tr.po: Likewise. * po/uk.po: Likewise. * po/vi.po: Likewise. * po/zh_CN.po: Likewise. * po/zh_TW.po: Likewise. * po/de.po: New file from translationproject.org. * po/ru.po: Likewise. * configure.ac (ALL_LINGUAS): Add de, ru. Sort. * configure: Regenerate. opcodes/ * po/da.po: Update from translationproject.org/latest/opcodes/. * po/de.po: Likewise. * po/es.po: Likewise. * po/fi.po: Likewise. * po/fr.po: Likewise. * po/id.po: Likewise. * po/it.po: Likewise. * po/nl.po: Likewise. * po/pt_BR.po: Likewise. * po/ro.po: Likewise. * po/sv.po: Likewise. * po/tr.po: Likewise. * po/uk.po: Likewise. * po/vi.po: Likewise. * po/zh_CN.po: Likewise.
2017-06-23[GOLD] PowerPC64 localentry:0 plt call optimizationAlan Modra1-0/+19
elfcpp/ * elfcpp.h (DT_PPC64_OPT): Define. * powerpc.h (PPC64_OPT_TLS, PPC64_OPT_MULTI_TOC, PPC64_OPT_LOCALENTRY): Define. gold/ * options.h (General_options): Add plt_localentry. * powerpc.cc (Target_powerpc::st_other): New function. (Target_powerpc::plt_localentry0_, plt_localentry0_init_, has_localentry0_): New vars. (Target_powerpc::plt_localentry0, set_has_localentry0, is_elfv2_localentry0): New functions. (Target_powerpc::Branch_info::mark_pltcall): Don't set tocsave or return true for localentry:0 calls. (Stub_table::Plt_stub_ent::localentry0_): New var. (Stub_table::add_plt_call_entry): Set localentry0_ and has_localentry0_. Don't set r2save_ for localentry:0 calls. (Output_data_glink::do_write): Save r2 in __glink_PLTresolve for elfv2. (Target_powerpc::scan_relocs): Default plt_localentry0_. (Target_powerpc::do_finalize_sections): Set DT_PPC64_OPT. (Target_powerpc::Relocate::relocate): Don't require nop following calls for localentry:0 plt calls, and don't change nop.
2017-06-23[GOLD] PowerPC64 tocsaveAlan Modra1-0/+20
This adds support to gold for the tocsave relocs already supported by ld.bfd. R_PPC64_TOCSAVE relocs are part of a scheme to move r2 saves to the prologue of a function rather than in each plt call stub. We don't want a compiler to always emit the r2 save, as this would be wasted if the calls turned out to be local. See the tocsave*.s in ld/testsuite/ld-powerpc/. * powerpc.cc (Target_powerpc::tocsave_loc_): New var. (Target_powerpc::mark_pltcall, add_tocsave, tocsave_loc): New functions. (Target_powerpc::Branch_info::tocsave_): New var. (Target_powerpc::Branch_info::mark_pltcall): New function. (Target_powerpc::Branch_info::make_stub): Pass tocsave_ to add_plt_call_entry. (Stub_table::Plt_stub_ent): Make public. Add r2save_. (Stub_table::add_plt_call_entry): Add bool tocsave_ param. Set r2save_. (Stub_table::find_plt_call_entry): Return Plt_stub_ent*. Adjust use throughout. (Stub_table::do_write): Conditionally output r2 save in plt stubs. (Target_powerpc::Scan::local): Handle R_PPC64_TOCSAVE. (Target_powerpc::Scan::global): Likewise. (Target_powerpc::Relocate::relocate): Skip r2 save in plt call stub with tocsave reloc. Replace header tocsave nop with r2 save. * symtab.h (struct Symbol_location_hash): Make public.
2017-06-21[GOLD] PowerPC move plt indx_ out of unordered map keyAlan Modra1-0/+8
I was lazy when adding indx_ to Plt_stub_ent. The field isn't part of the key, so ought to be part of the mapped type. Make it so. * powerpc.cc (Plt_stub_key): Rename from Plt_stub_ent. Remove indx_. (Plt_stub_key_hash): Rename from Plt_stub_ent_hash. (struct Plt_stub_ent): New. (Plt_stub_entries): Map from Plt_stub_key to Plt_stub_ent. Adjust use throughout file.
2017-06-202017-06-20 Eric Christopher <echristo@gmail.com>Eric Christopher1-0/+9
* aarch64.cc (scan_reloc_for_stub): Use plt_address_for_global to calculate the symbol value. (scan_reloc_section_for_stubs): Allow stubs to be created for section symbols. (maybe_apply_stub): Handle creating stubs for weak symbols to match the code in scan_reloc_for_stub.
2017-06-20[GOLD] Avoid duplicate PLT stub symbols on ppc32James Clarke1-0/+5
If two objects are compiled with -fPIC or -fPIE and call the same function, two different PLT entries are created, one for each object, but the same stub symbol name is used for both. * powerpc.cc (Stub_table::define_stub_syms): Always include object's uniq_ value.
2017-06-152017-06-15 Eric Christopher <echristo@gmail.com>Eric Christopher1-0/+4
* aarch64.cc: Fix a few typos and grammar-os.
2017-06-15[GOLD] Don't install branch-to-stub for TLS relaxed ERRATUM 843419 sequences ↵Jiong Wang1-0/+6
on AArch64 TLS relaxation may change erratum 843419 sequences that those offending ADRP instructions actually transformed into other instructions in which case there is erratum 843419 risk anymore that we should avoid installing unnecessary branch-to-stub. gold/ * aarch64.cc (Insn_utilities::is_mrs_tpidr_el0): New method. (AArch64_relobj<size, big_endian>::try_fix_erratum_843419_optimized): Return ture for some TLS relaxed sequences.
2017-06-072017-06-07 Eric Christopher <echristo@gmail.com>Eric Christopher1-0/+8
* aarch64.cc (maybe_apply_stub): Add debug logging for looking up stubs to undefined symbols and early return rather than fail to look them up. (scan_reloc_for_stub): Add debug logging for no stub creation for undefined symbols.
2017-05-23PR21503, Gold doesn't create linker stub symbols on ppc64Alan Modra1-0/+21
PR 21503 * options.h: Add --emit-stub-syms option. * powerpc.cc (object_id): New. (Powerpc_relobj): Add uniq_ and accessor. Sort variables for better packing. (Powerpc_dynobj): Sort variables for better packing. (Target_powerpc::define_local): New function. (Target_powerpc::group_sections): Pass stub table size to Stub_table constructor. (Target_powerpc::do_relax): Define stub and glink symbols. (Stub_table): Add uniq_ variable, and id param to constructor. (Stub_table::Plt_stub_ent): Add indx_ variable. (Stub_table::Branch_stub_entries): Move typedef earlier. (Stub_table::branch_stub_size): Replace "to" parameter with a Branch_stub_entries iterator. (Stub_table::add_long_branch_entry): Adjust to suit. (Stub_table::add_plt_call_entry): Set indx_. (Stub_table::define_stub_syms): New function.
2017-05-152017-05-15 Eric Christopher <echristo@gmail.com>Eric Christopher1-0/+6
* layout.cc (Layout::segment_precedes): Add a case for testing pointer equality when determining which segment precedes another.
2017-05-13Fix assertion failure relaxing TLS for position-independent executables.James Clarke1-0/+8
gold/ PR gold/21444 * gold.cc (Target_sparc::Relocate::relocate_tls): Local variables are final for position-independent executables. This has to be consistent with Target_sparc::Scan::local otherwise they will disagree as to whether local-exec is used.
2017-05-12Fix misplacement of a relaxed section on AArch64.Igor Kudrin1-0/+13
gold/ChangeLog PR gold/21430 * aarch64.cc (AArch64_relobj::convert_input_section_to_relaxed_section): Set the section offset to -1ULL. (Target_aarch64::relocate_section): Adjust the view in case of a relaxed input section. * testsuite/Makefile.am (pr21430): New test. * testsuite/Makefile.in: Regenerate * testsuite/pr21430.s: New test source file. * testsuite/pr21430.sh: New test script.
2017-04-27[GOLD] testsuite/plugin_section_order.c fixAlan Modra1-0/+4
* testsuite/plugin_section_order.c (onload): Add missing break.
2017-03-15Mips: Fix TLS LDM GOT entry.Vladimir Radosavljevic1-0/+7
gold/ * mips.cc (Mips_got_entry::hash()): Shift addend to reduce possibility of collisions. (Mips_got_entry::equals): Fix case for GOT_TLS_LDM entries.
2017-03-15Mips: Omit empty objects for merging processor-specific data.Vladimir Radosavljevic1-0/+12
gold/ * mips.cc (Mips_relobj::merge_processor_specific_data_): New data member. (Mips_relobj::merge_processor_specific_data): New method. (Mips_relobj::do_read_symbols): Set merge_processor_specific_data_ to false, only if the input file is a binary or if object has no contents except the section name string table and an empty symbol table with the undefined symbol. (Target_mips::do_finalize_sections): Refactor. Skip empty object files for merging processor-specific data.
2017-03-15Mips: Add support for resolving multiple consecutive relocations.Vladimir Radosavljevic1-0/+8
gold/ * mips.cc (Target_mips::Relocate::calculated_value_): New data member. (Target_mips::Relocate::calculate_only_): Likewise. (Target_mips::Relocate::relocate): Handle multiple consecutive relocations with the same offset.
2017-03-15Remove redundant checks for relocatable link (MIPS).Vladimir Radosavljevic1-15/+21
gold/ * mips.cc (Target_mips::Relocate::relocate): Remove redundant checks for relocatable link. (Mips_relocate_functions::reljalr): Likewise.
2017-03-15Add support for .MIPS.options section.Vladimir Radosavljevic1-0/+5
gold/ * mips.cc (class Mips_output_section_options): New class. (Target_mips::do_make_output_section): New method.
2017-03-15Improve relocation overflow errors on MIPS.Vladimir Radosavljevic1-0/+8
gold/ * mips.cc (Mips_relocate_functions::rel26): Don't print relocation overflow error message. (Target_mips::relocate_special_relocatable): Improve relocation overflow error message. (Target_mips::Relocate::relocate): Likewise.
2017-03-15Correct the definition of _gp and _GLOBAL_OFFSET_TABLE_ symbols for MIPS.Vladimir Radosavljevic1-0/+11
gold/ * mips.cc (symbol_refs_local): Return false if a symbol is from a dynamic object. (Target_mips::got_section): Make _GLOBAL_OFFSET_TABLE_ STV_HIDDEN. (Target_mips::set_gp): Refactor. Make _gp STT_NOTYPE and STB_LOCAL. (Target_mips::do_finalize_sections): Set _gp after all the checks for creating .got are done. (Target_mips::Scan::global): Remove unused code.
2017-02-22PowerPC ld segfault on script discarding dynamic sectionsAlan Modra1-0/+6
bfd/ * elf64-ppc.c (ppc64_elf_finish_dynamic_sections): Don't segfault on .got or .plt output section being discarded by script. * elf32-ppc.c (ppc_elf_finish_dynamic_sections): Likewise. Move vxworks splt temp. gold/ * powerpc.cc (Target_powerpc::make_iplt_section): Check that output_section exists before attempting add_output_section_data. (Target_powerpc::make_brlt_section): Likewise.
2017-02-15Don't give an internal error for unsupported relocations.Vladimir Radosavljevic1-10/+15
gold/ * mips.cc (Target_mips::Scan::get_reference_flags): Remove gold_unreachable from default case.
2017-02-15Add support for R_MIPS_HIGHER/HIGHEST, R_MICROMIPS_HIGHER/HIGHEST relocations.Vladimir Radosavljevic1-0/+14
2017-02-15 Vladimir Radosavljevic <Vladimir.Radosavljevic@imgtec.com> PR gold/21111 * mips.cc (Mips_relocate_functions::relhigher): New method. (Mips_relocate_functions::relhighest): Likewise. (mips_get_size_for_reloc): Add support for relocs: R_MIPS_HIGHER and R_MIPS_HIGHEST. (Target_mips::Scan::local): Add support for relocs: R_MIPS_HIGHER, R_MIPS_HIGHEST, R_MICROMIPS_HIGHER and R_MICROMIPS_HIGHEST. (Target_mips::Scan::global): Likewise. (Target_mips::Scan::get_reference_flags): Likewise. (Target_mips::Relocate::relocate): Call static methods for resolving HIGHER and HIGHEST relocations.
2017-02-15Improved support for --icf=safe when used with -pie.Rahul Chaudhry1-0/+14
gold/ * x86_64.cc (Target_x86_64::do_can_check_for_function_pointers): Return true even when building pie binaries. (Target_x86_64::possible_function_pointer_reloc): Check opcode for R_X86_64_PC32 relocations. (Target_x86_64::local_reloc_may_be_function_pointer): Pass extra arguments to local_reloc_may_be_function_pointer. (Target_x86_64::global_reloc_may_be_function_pointer): Likewise. * gc.h (gc_process_relocs): Add check for STT_FUNC. * testsuite/Makefile.am (icf_safe_pie_test): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/icf_safe_pie_test.sh: New shell script.
2017-02-03[GOLD] PowerPC64 TOC indirect to TOC relative segfaultAlan Modra1-0/+5
* powerpc.cc (Powerpc_relobj::make_toc_relative): Don't crash when no .toc section exists.
2017-01-31Don't allow mov-to-lea optimization for __ehdr_start.Cary Coutant1-0/+7
gold/ PR gold/21090 * x86_64.cc (Target_x86_64::can_convert_mov_to_lea): Add check for predefined symbol. (Target_x86_64::Relocate::relocate): Fix formatting.
2017-01-23Add -e to test scripts where necessary.Rahul Chaudhry1-0/+6
gold/ * testsuite/icf_safe_so_test.sh: Use "set -e". * testsuite/icf_safe_test.sh: Likewise. * testsuite/icf_test.sh: Likewise.
2017-01-23Make the sh_info field of .rel.plt point to .plt (MIPS).Vladimir Radosavljevic1-0/+7
gold/ * mips.cc (Mips_output_data_plt::rel_plt): Remove const from return type. (Target_mips::make_plt_entry): Make the sh_info field of .rel.plt point to .plt.
2017-01-23Fix MIPS GOT when global symbols are forced to local visibility.Vladimir Radosavljevic1-0/+8
gold/ PR gold/21054 * mips.cc (Mips_got_info::record_global_got_symbol): Don't add symbol to the dynamic symbol table if it is forced to local visibility. (Target_mips::do_finalize_sections): Don't add __RLD_MAP symbol to the dynamic symbol table if it is forced to local visibility.
2017-01-20Fix problem in aarch64 gold sources uncovered by Coverty - using sizeof on a ↵Nick Clifton1-0/+5
pointer instead of an array. * aarch64.cc (Stub_template_repertoire): Change ST_E_835769_INSNS from a pointer to an array.
2017-01-13Gold: Fix build with GCC 4.2H.J. Lu1-0/+6
PR gold/21040 * powerpc.cc (Powerpc_relobj<size, big_endian>::make_toc_relative): Cast 0x80008000 to uint64_t.
2017-01-12Fix incorrect byte counts.Cary Coutant1-0/+4
gold/ * object.cc (Sized_relobj_file): Fix byte counts for calls to memmem.
2017-01-11Fix more compile errors with GCC 4.2.Cary Coutant1-0/+10
gold/ PR gold/21040 * x86_64.cc (Output_data_plt_x86_64_bnd::do_fill_first_plt_entry): Remove unnecessary 'typename' keyword. (Output_data_plt_x86_64_bnd::do_fill_plt_entry): Likewise. (Output_data_plt_x86_64_bnd::fill_aplt_entry): Likewise. (Output_data_plt_x86_64_bnd::do_fill_tlsdesc_entry): Likewise. (Output_data_plt_x86_64_bnd::do_write): Likewise.
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