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2017-11-07readelf ngettext fixesAlan Modra148-164/+164
This patch is a first pass at fixing readelf message pluralization. I've deliberately not fixed the "out of memory" errors since it's very unlikely that they will ever be complaining about not being able to allocate for a single entry, and a few others where the size is very unlikely to be 1 byte. Then there are messages like this one: "Out of %lu items there are %zu bucket clashes (longest of %zu entries).\n" I suppose this could be split into three parts, "Of %lu items ", "there are %zu bucket clashes ", and "(longest of %zu entries).\n", each part being printed separately, but that might not be ideal for sentence construction in other languages. For now I'm punting on this one. Changes to readelf output require lots of testsuite adjustment.. binutils/ * dwarf.c (read_uleb128): Properly pluralize messages. (display_debug_lines_raw, display_debug_loc): Likewise. (display_debug_names, process_cu_tu_index): Likewise. * od-macho.c (dump_code_signature_superblob): Likewise. * readelf.c (process_program_headers): Likewise. (process_section_header, process_relocs): Likewise. (hppa_process_unwind, arm_process_unwind): Likewise. (process_dynamic_section, process_version_sections): Likewise. (process_symbol_table, process_syminfo): Likewise. (apply_relocations, process_mips_specific): Likewise. (process_gnu_liblist, process_notes_at): Likewise. (process_archive): Likewise. * testsuite/binutils-all/dw2-1.W, * testsuite/binutils-all/dw2-3.W, * testsuite/binutils-all/dw2-3gabi.W, * testsuite/binutils-all/dw5.S, * testsuite/binutils-all/dw5.W, * testsuite/binutils-all/i386/compressed-1a.d, * testsuite/binutils-all/libdw2-compressedgabi.out, * testsuite/binutils-all/objdump.W, * testsuite/binutils-all/readelf.r, * testsuite/binutils-all/readelf.r-64, * testsuite/binutils-all/x86-64/compressed-1a.d: Update for pluralization fixes. gas/ * testsuite/gas/arm/got_prel.d, * testsuite/gas/elf/dwarf2-1.d, * testsuite/gas/elf/dwarf2-2.d, * testsuite/gas/elf/dwarf2-3.d, * testsuite/gas/elf/dwarf2-5.d, * testsuite/gas/elf/dwarf2-6.d, * testsuite/gas/i386/debug1.d, * testsuite/gas/i386/dw2-compress-1.d, * testsuite/gas/i386/dw2-compress-3a.d, * testsuite/gas/i386/dw2-compress-3b.d, * testsuite/gas/i386/dw2-compressed-1.d, * testsuite/gas/i386/dw2-compressed-3a.d, * testsuite/gas/i386/dw2-compressed-3b.d, * testsuite/gas/i386/ilp32/x86-64-localpic.d, * testsuite/gas/i386/localpic.d, * testsuite/gas/i386/x86-64-localpic.d, * testsuite/gas/ia64/pr13167.d, * testsuite/gas/mips/loc-swap-2.d, * testsuite/gas/mips/loc-swap.d, * testsuite/gas/mips/micromips@loc-swap-2.d, * testsuite/gas/mips/micromips@loc-swap.d, * testsuite/gas/mips/mips16-dwarf2-n32.d, * testsuite/gas/mips/mips16-dwarf2.d, * testsuite/gas/mips/mips16@loc-swap-2.d, * testsuite/gas/mips/mips16@loc-swap.d, * testsuite/gas/mips/mips16e@loc-swap.d, * testsuite/gas/mmix/bspec-1.d, * testsuite/gas/mmix/bspec-2.d, * testsuite/gas/tic6x/unwind-1.d, * testsuite/gas/tic6x/unwind-2.d, * testsuite/gas/tic6x/unwind-3.d: Update for pluralization fixes. ld/ * testsuite/ld-aarch64/ifunc-13.d, * testsuite/ld-aarch64/ifunc-15.d, * testsuite/ld-aarch64/ifunc-20.d, * testsuite/ld-alpha/tlsbin.rd, * testsuite/ld-alpha/tlspic.rd, * testsuite/ld-arm/ifunc-3.rd, * testsuite/ld-arm/ifunc-9.rd, * testsuite/ld-arm/unwind-mix.d, * testsuite/ld-arm/unwind-rel.d, * testsuite/ld-cris/hiddef1.d, * testsuite/ld-cris/libdso-13.d, * testsuite/ld-cris/libdso-2.d, * testsuite/ld-cris/pr16044.d, * testsuite/ld-cris/tls-local-63.d, * testsuite/ld-cris/tls-local-64.d, * testsuite/ld-cris/tls-und-38.d, * testsuite/ld-cris/tls-und-42.d, * testsuite/ld-cris/tls-und-46.d, * testsuite/ld-cris/tls-und-50.d, * testsuite/ld-cris/weakref3.d, * testsuite/ld-cris/weakref4.d, * testsuite/ld-elf/comm-data2r.rd, * testsuite/ld-elf/discard1.d, * testsuite/ld-elf/discard2.d, * testsuite/ld-elf/pr19539.d, * testsuite/ld-elf/pr22374-1.r, * testsuite/ld-elf/pr22374-2.r, * testsuite/ld-i386/combreloc.d, * testsuite/ld-i386/emit-relocs-nacl.rd, * testsuite/ld-i386/emit-relocs.rd, * testsuite/ld-i386/pr13302.d, * testsuite/ld-i386/pr17709-nacl.rd, * testsuite/ld-i386/pr17709.rd, * testsuite/ld-i386/pr19539.d, * testsuite/ld-i386/pr19615.d, * testsuite/ld-i386/pr19636-1a.d, * testsuite/ld-i386/pr19636-1e.d, * testsuite/ld-i386/pr19636-1f.d, * testsuite/ld-i386/pr19636-2a.d, * testsuite/ld-i386/pr19636-2b.d, * testsuite/ld-i386/pr19636-2d-nacl.d, * testsuite/ld-i386/pr19636-2e-nacl.d, * testsuite/ld-i386/pr19636-3a.d, * testsuite/ld-i386/pr19636-3d.d, * testsuite/ld-i386/pr19636-3e.d, * testsuite/ld-i386/pr19636-4a.d, * testsuite/ld-i386/pr19645.d, * testsuite/ld-i386/pr19827-nacl.rd, * testsuite/ld-i386/pr19827.rd, * testsuite/ld-i386/pr20253-4a.d, * testsuite/ld-i386/pr20253-4b.d, * testsuite/ld-i386/pr20253-5.d, * testsuite/ld-i386/tlsbin-nacl.rd, * testsuite/ld-i386/tlsbin.rd, * testsuite/ld-i386/tlspic-nacl.rd, * testsuite/ld-i386/tlspic.rd, * testsuite/ld-i386/undefweakb.d, * testsuite/ld-ia64/tlsbin.rd, * testsuite/ld-ia64/tlspic.rd, * testsuite/ld-ifunc/ifunc-13-i386.d, * testsuite/ld-ifunc/ifunc-13-x86-64.d, * testsuite/ld-ifunc/ifunc-15-i386.d, * testsuite/ld-ifunc/ifunc-15-x86-64.d, * testsuite/ld-ifunc/ifunc-20-i386.d, * testsuite/ld-ifunc/ifunc-20-x86-64.d, * testsuite/ld-ifunc/ifunc-23a-x86.d, * testsuite/ld-ifunc/ifunc-23b-x86.d, * testsuite/ld-ifunc/ifunc-23c-x86.d, * testsuite/ld-ifunc/ifunc-24a-x86.d, * testsuite/ld-ifunc/ifunc-24b-x86.d, * testsuite/ld-ifunc/ifunc-24c-x86.d, * testsuite/ld-ifunc/ifunc-25a-x86.d, * testsuite/ld-ifunc/ifunc-25b-x86.d, * testsuite/ld-ifunc/ifunc-25c-x86.d, * testsuite/ld-m68k/got-1.d, * testsuite/ld-mips-elf/vxworks1.rd, * testsuite/ld-powerpc/ambiguousv1.d, * testsuite/ld-powerpc/ambiguousv1b.d, * testsuite/ld-powerpc/ambiguousv2.d, * testsuite/ld-powerpc/ambiguousv2b.d, * testsuite/ld-powerpc/tlsexe.r, * testsuite/ld-powerpc/tlsexe32.r, * testsuite/ld-powerpc/tlsexetoc.r, * testsuite/ld-powerpc/tlsso.r, * testsuite/ld-powerpc/tlsso32.r, * testsuite/ld-powerpc/tlstocso.r, * testsuite/ld-powerpc/vle-multiseg-1.d, * testsuite/ld-powerpc/vle-multiseg-2.d, * testsuite/ld-powerpc/vle-multiseg-3.d, * testsuite/ld-s390/tlsbin.rd, * testsuite/ld-s390/tlsbin_64.rd, * testsuite/ld-s390/tlspic.rd, * testsuite/ld-s390/tlspic_64.rd, * testsuite/ld-sh/ld-r-1.d, * testsuite/ld-sh/sh64/gotplt.d, * testsuite/ld-sh/shared-1.d, * testsuite/ld-sh/tlsbin-2.d, * testsuite/ld-sh/tlspic-2.d, * testsuite/ld-sparc/gotop32.rd, * testsuite/ld-sparc/gotop64.rd, * testsuite/ld-sparc/tlssunpic32.rd, * testsuite/ld-sparc/tlssunpic64.rd, * testsuite/ld-sparc/vxworks1-lib.rd, * testsuite/ld-tic6x/shlib-app-1.rd, * testsuite/ld-tic6x/shlib-app-1b.rd, * testsuite/ld-tic6x/shlib-app-1r.rd, * testsuite/ld-tic6x/shlib-app-1rb.rd, * testsuite/ld-tic6x/shlib-noindex.rd, * testsuite/ld-vax-elf/export-class-data.rd, * testsuite/ld-x86-64/pr13082-1a.d, * testsuite/ld-x86-64/pr13082-1b.d, * testsuite/ld-x86-64/pr13082-2a.d, * testsuite/ld-x86-64/pr13082-2b.d, * testsuite/ld-x86-64/pr13082-3a.d, * testsuite/ld-x86-64/pr13082-3c.d, * testsuite/ld-x86-64/pr13082-4a.d, * testsuite/ld-x86-64/pr13082-5a.d, * testsuite/ld-x86-64/pr13082-5b.d, * testsuite/ld-x86-64/pr13082-6a.d, * testsuite/ld-x86-64/pr13082-6b.d, * testsuite/ld-x86-64/pr17709-nacl.rd, * testsuite/ld-x86-64/pr17709.rd, * testsuite/ld-x86-64/pr19539a.d, * testsuite/ld-x86-64/pr19539b.d, * testsuite/ld-x86-64/pr19615.d, * testsuite/ld-x86-64/pr19636-1a.d, * testsuite/ld-x86-64/pr19636-1d.d, * testsuite/ld-x86-64/pr19636-1e.d, * testsuite/ld-x86-64/pr19636-2a.d, * testsuite/ld-x86-64/pr19636-2e.d, * testsuite/ld-x86-64/pr19636-2f.d, * testsuite/ld-x86-64/pr19636-3a.d, * testsuite/ld-x86-64/pr19645.d, * testsuite/ld-x86-64/pr19807-2b.d, * testsuite/ld-x86-64/pr19807-2d.d, * testsuite/ld-x86-64/pr19827-nacl.rd, * testsuite/ld-x86-64/pr19827.rd, * testsuite/ld-x86-64/pr20253-4a.d, * testsuite/ld-x86-64/pr20253-4b.d, * testsuite/ld-x86-64/pr20253-4d.d, * testsuite/ld-x86-64/pr20253-4e.d, * testsuite/ld-x86-64/pr20253-5a.d, * testsuite/ld-x86-64/pr20253-5b.d, * testsuite/ld-x86-64/tlsbin-nacl.rd, * testsuite/ld-x86-64/tlsbin.rd, * testsuite/ld-x86-64/tlspic-nacl.rd, * testsuite/ld-x86-64/tlspic.rd, * testsuite/ld-x86-64/tlspic2-nacl.rd: Update for pluralization fixes.
2017-11-01PR22374, PowerPC unnecessary PLT entriesAlan Modra1-5/+0
We don't need a PLT entry when function pointer initialization in a read/write section is the only reference to a given function symbol. This patch prevents the unnecessary PLT entry, and ensures no dynamic relocs are emitted when UNDEFWEAK_NO_DYNAMIC_RELOC says so. bfd/ PR 22374 * elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Don't create a plt entry when just a dynamic reloc can serve. Ensure no dynamic relocations when UNDEFWEAK_NO_DYNAMIC_RELOC by setting non_got_ref. Expand and move the non_got_ref comment. * elf64-ppc.c (ppc64_elf_adjust_dynamic_symbol): Likewise. ld/ * testsuite/ld-powerpc/ambiguousv2.d: Remove FIXME.
2017-11-01PR22374 testcase, function pointer references in .dataAlan Modra5-0/+30
Function pointer references in .data ought to use a dynamic reloc. There shouldn't be any need for a PLT entry and definitely no copy reloc. This test fails on quite a few targets, but isn't something that anyone should worry about too much. It's really just a missed optimization. PR 22374 * testsuite/ld-elf/pr22374a.s, * testsuite/ld-elf/pr22374b.s, * testsuite/ld-elf/pr22374-1.r, * testsuite/ld-elf/pr22374-2.r: New test. * testsuite/ld-elf/elf.exp: Run it.
2017-11-01Tidy elf.expAlan Modra1-36/+23
* testsuite/ld-elf/elf.exp: Merge some conditionals, a better name than "shared library for next test", and use xfail arg of run_ld_link_tests in a few places.
2017-10-26[PR21703]Adjust pr21703 tests on various targets.Renlin Li3-9/+34
xfail tests for certain targets. Check shared library support for shared test. Relax pr21703-r.sd and pr21703-shared.sd with additional "#..." pattern lines. ld/ * testsuite/ld-elf/elf.exp: xfail pr21703 tests on specific targets. Only run shared lib test for targets which support it. * testsuite/ld-elf/pr21703-r.sd: Adjust the expected output. * testsuite/ld-elf/pr21703-shared.sd: Likewise.
2017-10-26As Alan predicted at ↵James Greenhalgh3-29/+29
https://sourceware.org/ml/binutils/2017-10/msg00137.html the values in some Arm tests need updating after recent changes. These looked a bit spooky at first, but they are just a difference in the order we emit veneers and far jumps, so are not so scary after all. Checked with an arm-none-eabi tester and an arm-none-linux-gnueabi tester with no issues. * testsuite/ld-arm/cortex-a8-far.d: Update expected disassembly. * testsuite/ld-arm/farcall-group-size2: Likewise. * testsuite/ld-arm/farcall-group.d: Likewise.
2017-10-25Allow for __gnu_lto_slim prefixed with extra "_"Alan Modra2-2/+2
Some targets prefix global symbols with "_". bfd/ * archive.c (_bfd_compute_and_write_armap): Match "__gnu_lto_slim" optionally prefixed with "_". * linker.c (_bfd_generic_link_add_one_symbol): Likewise. binutils/ * nm.c (filter_symbols): Match "__gnu_lto_slim" optionally prefixed with "_". gold/ * symtab.cc (Symbol_table::add_from_relobj): Match "__gnu_lto_slim" optionally prefixed with "_". ld/ * testsuite/ld-plugin/lto-3r.d: Match "__gnu_lto_v" optionally prefixed with "_". * testsuite/ld-plugin/lto-5r.d: Likewise.
2017-10-25testsuite/ld-riscv-elf/ld-riscv-elf.exp: Fix typo for istarget.Hans-Peter Nilsson1-1/+1
2017-10-24RISC-V: Only relax to C.LUI when imm != 0 and rd != 0/2Andrew Waterman3-0/+46
This matches the ISA specification. This also adds two tests: one to make sure the assembler rejects invalid 'c.lui's, and one to make sure we only relax valid 'c.lui's. bfd/ChangeLog 2017-10-24 Andrew Waterman <andrew@sifive.com> * elfnn-riscv.c (_bfd_riscv_relax_lui): Don't relax to c.lui when rd is x0. include/ChangeLog 2017-10-24 Andrew Waterman <andrew@sifive.com> * opcode/riscv.h (VALID_RVC_LUI_IMM): c.lui can't load the immediate 0. gas/ChangeLog 2017-10-24 Andrew Waterman <andrew@sifive.com> * testsuite/gas/riscv/c-lui-fail.d: New testcase. gas/testsuite/gas/riscv/c-lui-fail.l: Likewise. gas/testsuite/gas/riscv/c-lui-fail.s: Likewise. gas/testsuite/gas/riscv/riscv.exp: Likewise. ld/ChangeLog 2017-10-24 Andrew Waterman <andrew@sifive.com> * ld/testsuite/ld-riscv-elf/c-lui.d: New testcase. ld/testsuite/ld-riscv-elf/c-lui.s: Likewise. ld/testsuite/ld-riscv-elf/ld-riscv-elf.exp: New test suite.
2017-10-24[BFD][PR21703]Override the new defined symbol with the old normal symbol ↵Renlin Li9-0/+79
when --allow-multiple-definition is provided. The behavior of _bfd_elf_merge_symbol and _bfd_generic_link_add_one_symbol is inconsistent. In multiple definition case, _bfd_elf_merge_symbol decided to override the old symbol definition with the new defintion, (size, type, target data) In _bfd_generic_link_add_one_symbol, it simply return without doing anything because of allow-multiple-definition is provided. This leaves the symbol in a wrong state. Here, following the documentation, I made this patch to force the old definition override the new definition if the old symbol is not dynamic or weak. Because, in those two cases, it's expected to do some merge. I have checked that, those two cases are properly handled. bfd/ PR ld/21703 * elflink.c (_bfd_elf_merge_symbol): Handle multiple definition case. ld/ PR ld/21703 * testsuite/ld-elf/elf.exp: Run new tests. * testsuite/ld-elf/pr21703-1.s: New. * testsuite/ld-elf/pr21703-2.s: New. * testsuite/ld-elf/pr21703-3.s: New. * testsuite/ld-elf/pr21703-4.s: New. * testsuite/ld-elf/pr21703-r.sd: New. * testsuite/ld-elf/pr21703-shared.sd: New. * testsuite/ld-elf/pr21703.sd: New. * testsuite/ld-elf/pr21703.ver: New.
2017-10-23Make sure that undefined symbols added to the linker command line via the -u ↵Nick Clifton3-8/+20
option appear in the output executable, if they have not been resolved. PR 22319 bfd * elflink.c (elf_link_output_extsym): Keep global undefined symbols if they have been marked as needed. ld * testsuite/ld-elf/pr22310.s: New test source file. * testsuite/ld-elf/pr22310.d: New test driver. * testsuite/ld-mmix/undef-3.d: Update expected output from readelf.
2017-10-21PR ld/21233Hans-Peter Nilsson1-6/+0
* testsuite/ld-elf/shared.exp: Remove kfails. The test-cases started passing with 5c3261b0e834647c, "ELF: Call check_relocs after opening all inputs". The lists could now be re-concatenated (see other run_ld_link_tests calls in shared.exp), but are for now left separate to simplify future kfail/xfailing.
2017-10-20Add a compile-time test for PR ld/22269H.J. Lu3-0/+26
This compile-time test requires a target C compiler to run. It fails on many targets where ELF backend linkers fail to check undefined weak symbol in static PIE via UNDEFWEAK_NO_DYNAMIC_RELOC. PR ld/22269 * testsuite/ld-elf/pr22269-1.rd: New file. * testsuite/ld-elf/pr22269-1.c: Likewise. * testsuite/ld-elf/shared.exp: Run pr22269-1.
2017-10-16ELF: Call check_relocs after opening all inputsH.J. Lu8-89/+44
For all ELF targers, call check_relocs after opening all inputs and garbage collection. Since the symbol resolution is known, check_relocs can be simplified. Also garbage collection doesn't need to undo what check_relocs has done for symbols which have been garbage collected. Since ELF targets never see the removed sections, gc_sweep_hook can be removed from elf_backend_data and we can avoid GOT/PLT with garbage collection now. Set link_info.check_relocs_after_open_input to TRUE for all linker targets which use ELF linker and update garbage collection tests to remove unused GOT section. ldemul_after_check_relocs is added for powerpc to support --secure-plt, --bss-plt and --sdata-got. Tested natively without regressions on i686, x86-64 and x32. Tested cross binutils on x86-64 without regressions for aarch64-linux, alpha-linux, arm-linux, bfin-elf, cr16-elf, cris-elf, crx-elf, frv-linux, hppa64-linux, hppa-linux, ia64-linux, lm32-elf, m32r-elf, m68k-linux, mcore-elf, metag-elf, microblaze-linux, mips-linux, mmix, mn10300-elf, nds32le-linux, nios2-linux, or1k-elf, powerpc64-linux, powerpc-linux, riscv32-linux, riscv64-linux, s390-linux, s390x-linux, score-elf, sh3-linux, sparc64-linux, sparc-linux, tic6x-elf, tilegx-linux, tilepro-linux, vax-linux, x86_64-mingw32 and xtensa-linux. bfd/ * elf-bfd.h (elf_backend_data): Remove gc_sweep_hook. * elf32-arm.c (elf32_arm_gc_sweep_hook): Removed. (elf_backend_gc_sweep_hook): Likewise. * elf32-bfin.c (bfin_gc_sweep_hook): Likewise. (bfinfdpic_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-cr16.c (elf32_cr16_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-cris.c (cris_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-hppa.c (elf32_hppa_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-lm32.c (lm32_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-m32r.c (m32r_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-m68k.c (elf_m68k_got_entry): Remove elf_m68k_gc_sweep_hook from comments. (elf_m68k_remove_got_entry_type): Removed. (elf_m68k_find_got_entry_ptr): Likewise. (elf_m68k_remove_got_entry): Likewise. (elf_m68k_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-mcore.c (mcore_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-metag.c (elf_metag_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-microblaze.c (elf_backend_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-mips.c (elf_backend_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-nds32.c (nds32_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-nios2.c (nios2_elf32_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-or1k.c (or1k_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-ppc.c (ppc_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-s390.c (elf_s390_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-sparc.c (elf_backend_gc_sweep_hook): Likewise. * elf32-tic6x.c (elf32_tic6x_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-tilegx.c (elf_backend_gc_sweep_hook): Likewise. * elf32-tilepro.c (tilepro_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-vax.c (elf_vax_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf32-xtensa.c (elf_xtensa_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf64-alpha.c (elf64_alpha_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf64-mips.c (elf_backend_gc_sweep_hook): Likewise. * elf64-mmix.c (mmix_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf64-ppc.c (elf_backend_gc_sweep_hook): Likewise. (ppc64_elf_gc_sweep_hook): Likewise. * elf64-s390.c (elf_s390_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elf64-sparc.c (elf_backend_gc_sweep_hook): Likewise. * elf64-tilegx.c (elf_backend_gc_sweep_hook): Likewise. * elflink.c (elf_link_add_object_symbols): Don't call _bfd_elf_link_check_relocs here. (gc_sweep_hook_fn): Removed. (elf_gc_sweep): Remove gc_sweep_hook. * elfnn-aarch64.c (elfNN_aarch64_gc_sweep_hook): Removed. (elf_backend_gc_sweep_hook): Likewise. * elfnn-riscv.c (riscv_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elfxx-mips.c (_bfd_mips_elf_gc_sweep_hook): Likewise. * elfxx-mips.h (_bfd_mips_elf_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise. * elfxx-sparc.c (_bfd_sparc_elf_gc_sweep_hook): Likewise. * elfxx-sparc.h (_bfd_sparc_elf_gc_sweep_hook): Likewise. * elfxx-target.h (elf_backend_gc_sweep_hook): Likewise. (elfNN_bed): Remove elf_backend_gc_sweep_hook. * elfxx-tilegx.c (tilegx_elf_gc_sweep_hook): Removed. * elfxx-tilegx.h (tilegx_elf_gc_sweep_hook): Likewise. ld/ * emulparams/elf32_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Removed. * emulparams/elf_i386_be.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_i386_chaos.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_i386_ldso.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_i386_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_iamcu.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_k1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_l1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/i386lynx.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/i386moss.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/i386nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/i386nw.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shelf.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shelf32.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shelf_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shlelf32_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shlelf_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/shlelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emultempl/aarch64elf.em (gld${EMULATION_NAME}_before_parse): Set link_info.check_relocs_after_open_input to TRUE. * emultempl/armelf.em (gld${EMULATION_NAME}_before_parse): Likewise. * emultempl/scoreelf.em (gld${EMULATION_NAME}_before_parse): Likewise. * emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add after_parse_default. * emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/gld960.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/gld960c.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/lnk960.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/m68kcoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/sunos.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/vanilla.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Always set link_info.check_relocs_after_open_input to TRUE. (ld_${EMULATION_NAME}_emulation): Add $LDEMUL_AFTER_CHECK_RELOCS. * emultempl/linux.em (gld${EMULATION_NAME}_before_parse): Set link_info.check_relocs_after_open_input to TRUE. (ld_${EMULATION_NAME}_emulation): Add after_check_relocs_default. * emultempl/mmix-elfnmmo.em (mmix_before_parse): New function. (LDEMUL_BEFORE_PARSE): New. * emultempl/mmixelf.em (elfmmix_before_parse): Replace gld${EMULATION_NAME}_before_parse with mmix_before_parse. * emultempl/ppc32elf.em (ppc_after_open): Renamed to ... (ppc_after_check_relocs): This. Call after_check_relocs_default instead of gld${EMULATION_NAME}_after_open. (LDEMUL_AFTER_OPEN): Removed. (LDEMUL_AFTER_CHECK_RELOCS): New. * ldemul.c (ldemul_after_check_relocs): New. (after_check_relocs_default): Likewise. * ldemul.h (ldemul_after_check_relocs): Likewise. (after_check_relocs_default): Likewise. (ld_emulation_xfer_struct): Add after_check_relocs. * ldlang.c (lang_process): Call ldemul_after_check_relocs after lang_check_relocs. * testsuite/ld-aarch64/gc-got-relocs.d: Don't expect GOT section. * testsuite/ld-aarch64/gc-tls-relocs.d: Likewise. * testsuite/ld-cris/tls-gc-68.d: Likewise. * testsuite/ld-cris/tls-gc-69.d: Likewise. * testsuite/ld-cris/tls-gc-70.d: Likewise. * testsuite/ld-cris/tls-gc-75.d: Likewise. * testsuite/ld-cris/tls-gc-79.d: Likewise. * testsuite/ld-mmix/bpo-10.d: Don't expect .MMIX.reg_contents section.
2017-10-14cris: Check UNDEFWEAK_NO_DYNAMIC_RELOCH.J. Lu1-10/+8
Don't generate dynamic relocation against weak undefined symbol if it is resolved to zero. FIXME: UNDEFWEAK_NO_DYNAMIC_RELOC may need to be checked in more places. bfd/ PR ld/22269 * elf32-cris.c (cris_elf_relocate_section): Don't generate dynamic relocation if UNDEFWEAK_NO_DYNAMIC_RELOC is true. (cris_elf_check_relocs): Don't allocate dynamic relocation if UNDEFWEAK_NO_DYNAMIC_RELOC is true. ld/ PR ld/22269 * testsuite/ld-cris/weakhiddso.d: Update and remove R_CRIS_NONE.
2017-10-14PR22263 testcaseAlan Modra2-3/+6
A number of targets need dynamic relocs in PIEs for reasons other than relocating thread variables. The PR is about text relocations, and, reading between the lines, unnecessary dynamic tprel relocations. Change the test to check for those conditions rather than no dynamic relocations PR ld/22263 * testsuite/ld-elf/tls.exp: Link with -z text. * testsuite/ld-elf/pr22263-1.rd: Test for tprel relocs.
2017-10-12Add a compile-time test for PR ld/22263H.J. Lu4-0/+72
This compile-time test requires a target C compiler to run. It fails on many targets where ELF backend linkers incorrectly check bfd_link_pic for TLS relocations, which should check bfd_link_executable instead. PR ld/22263 * testsuite/ld-elf/pr22263-1.rd: New file. * testsuite/ld-elf/pr22263-1a.c: Likewise. * testsuite/ld-elf/pr22263-1b.c: Likewise. * testsuite/ld-elf/tls.exp: Likewise.
2017-10-12Force the AArch64 linker backend to refuse to link when it encounters ↵Nick Clifton2-14/+28
unresoleable relocations. * reloc.c (enum bfd_reloc_status): Start values at 2. * bfd-in2.h: Regenerate. * elfnn-aarch64.c (aarch64_relocate): Invert sense of function, so that a TRUE return indicates success. Compare the result of calling _bfd_aarch64_elf_put_addend against bfd_reloc_ok. (build_one_stub): Change sense of tests against aarch64_relocate return value. (elfNN_aarch64_tls_relax): Return bfd_reloc_notsupported, rather than FALSE, when an error is detected. (elfNN_aarch64_final_link_relocate): Likewise. * testsuite/ld-aarch64/pcrel_pic_defined.d: Expect errors not warnings. Expect errors about unsupported relocations. * testsuite/ld-aarch64/pcrel_pic_undefined.d: Likewise.
2017-10-12ld: Update tests for warning of "-z dynamic-undefined-weak ignored"H.J. Lu8-9/+17
Update tests to expect warning of "-z dynamic-undefined-weak ignored" from commit 22b1ee183d19a92cc57859c04307d31c06792d13 Author: Alan Modra <amodra@gmail.com> Date: Thu Oct 12 13:19:10 2017 +1030 Set dynamic_undefined_weak to zero for static PIEs * testsuite/ld-elf/pr22269b.d: Expect warning of "-z dynamic-undefined-weak ignored". * testsuite/ld-i386/pr19636-1j.d: Likewise. * testsuite/ld-i386/pr19636-1k.d: Likewise. * testsuite/ld-i386/pr19636-1l.d: Likewise. * testsuite/ld-x86-64/pr19636-2j.d: Likewise. * testsuite/ld-x86-64/pr19636-2k.d: Likewise. * testsuite/ld-x86-64/pr19636-2l.d: Likewise. * testsuite/ld-x86-64/pr19636-2m.d: Likewise.
2017-10-11Add 2 testcases for PR ld/22269H.J. Lu3-0/+33
Since undefined weak symbols in static PIE are always resolved to 0 at run-time, linker should resolve them as 0 at link-time, regardless of whether "-z dynamic-undefined-weak" is used. "-z dynamic-undefined-weak" only makes undefined weak symbols dynamic, but doesn't change undefined weak symbol resolution in static PIE at link-time. These tests currently pass on x86, but fails on many other targets. The framework to resolve weak symbols in static PE at link-time is posted at https://sourceware.org/ml/binutils/2017-10/msg00087.html which requires users/hjl/check_relocs branch to call check_relocs after opening all inputs. I will submit backend patches for failling targets after merging users/hjl/check_relocs branch next. * PR ld/22269 * testsuite/ld-elf/pr22269.s: New file. * testsuite/ld-elf/pr22269a.d: Likewise. * testsuite/ld-elf/pr22269b.d: Likewise.
2017-10-11x86: Run PR ld/19636 tests with -z dynamic-undefined-weakH.J. Lu14-0/+171
"-z dynamic-undefined-weak" makes undefined weak symbols dynamic, but undefined weak symbols are still resolved to 0 at link-time if there is no dynamic linker in executable. * testsuite/ld-i386/i386.exp: Run pr19636-1j, pr19636-1k, pr19636-1l, pr19636-3h and pr19636-3i. * testsuite/ld-i386/pr19636-1j.d: New file. * testsuite/ld-i386/pr19636-1k.d: Likewise. * testsuite/ld-i386/pr19636-1l.d: Likewise. * testsuite/ld-i386/pr19636-3h.d: Likewise. * testsuite/ld-i386/pr19636-3i.d: Likewise. * testsuite/ld-x86-64/pr19636-1h.d: Likewise. * testsuite/ld-x86-64/pr19636-1i.d: Likewise. * testsuite/ld-x86-64/pr19636-1j.d: Likewise. * testsuite/ld-x86-64/pr19636-2j.d: Likewise. * testsuite/ld-x86-64/pr19636-2k.d: Likewise. * testsuite/ld-x86-64/pr19636-2l.d: Likewise. * testsuite/ld-x86-64/pr19636-2m.d: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run pr19636-1h, pr19636-1i, pr19636-1j, pr19636-2j, pr19636-2k, pr19636-2l and pr19636-2m.
2017-10-10[ARM] PR ld/21402, only override the symbol dynamic decision on undefined ↵Renlin Li3-15/+12
weak symbol. Similar as aarch64 backend, arm backend only overrides the decision on undefined weak symbols. arm backend part already emits necessary relative relocation for this case. bfd/ PR ld/21402 * elf32-arm.c (allocate_dynrelocs_for_symbol): Only make undefined weak symbols into dynamic. ld/ PR ld/21402 * testsuite/ld-arm/tls-app.d: Update address. * testsuite/ld-arm/tls-app.r: Remove relocations. * testsuite/ld-arm/unresolved-1-dyn.d: Update.
2017-10-09Fix link time warning message when running the srec linker tests.Nick Clifton1-1/+1
* testsuite/ld-srec/srec.exp (run_srec_test): Set start address.
2017-10-09Fix compile time warning message when running the PR19874 linker test.Nick Clifton1-1/+1
PR ld/19874 * testsuite/ld-x86-64/pr19784c.c (bar): Change return type to void.
2017-10-09ld: Don't allow '~' as the first char in symbol nameH.J. Lu4-0/+22
Don't allow '~' as the first character in symbol name in linker script. PR ld/22267 * ldlex.l (SYMBOLNAMECHAR1) New. (DEFSYMEXP): Replace FILENAMECHAR1 with SYMBOLNAMECHAR1. (EXPRESSION): Likewise. * testsuite/ld-scripts/expr.exp: Run pr22267. * testsuite/ld-scripts/pr22267.d: New file. * testsuite/ld-scripts/pr22267.s: Likewise. * testsuite/ld-scripts/pr22267.t: Likewise.
2017-10-07ld-elf/merge.d: Don't expect to fail for sparcH.J. Lu1-1/+1
It passed with cross binutils to sparc-linux and sparc64-linux. * testsuite/ld-elf/merge.d: Don't expect to fail for sparc.
2017-10-05Change readelf so that when --wide is active a relocation's full name is ↵Nick Clifton1-1/+1
displayed. PR 22262 binutils* readelf.c (dump_relocations): Do not truncate reloc names when displaying output in wide mode. ld * testsuite/ld-powerpc/relocsort.d: Update expected output (for longer reloc names).
2017-10-05PR21167, relocation sections not included in groupsAlan Modra1-4/+5
This fixes a wart I've known about for years, but haven't done anything about because BFD treats relocation sections as an adjunct to the section they relocate. SHF_GROUP on the section thus implicitly applies to its relocation section(s), but it is an error that the reloc sections aren't part of the group. Like many patches to gas, this wasn't as straightforward as it could be due to a number of backends, i386, cr16 and others, removing relocs in tc_get_reloc rather than marking them as "done" earlier in md_apply_reloc. So it isn't possible for the group support to reliably detect the presence of relocs by looking at fixups earlier than write_relocs. However the group support needs to create signature symbols, and that must be done before the symbol table is frozen, before write_relocs. So split off the group sizing from elf_adjust_symtab and put it in elf_frob_file_after_relocs. bfd/ PR 21167 * elf.c (_bfd_elf_setup_sections): Don't trim reloc sections from groups. (_bfd_elf_init_reloc_shdr): Pass sec_hdr, use it to copy SHF_GROUP flag from section. (elf_fake_sections): Adjust calls. Exit immediately on failure. (bfd_elf_set_group_contents): Add associated reloc section indices to group contents gas/ PR 21167 * config/obj-elf.c (struct group_list): Delete elt_count. (groups): New static. (build_group_lists): Don't count elements. (elf_adjust_symtab): Use groups rather than auto list. Set up pointer from group member to SHT_GROUP section. Don't size SHT_GROUP section or clean up here.. (elf_frob_file_after_relocs): ..do so here instead. * testsuite/gas/arc/jli-1.d, * testsuite/gas/elf/groupautob.d, * testsuite/gas/mips/compact-eh-eb-2.d, * testsuite/gas/mips/compact-eh-eb-5.d, * testsuite/gas/mips/compact-eh-el-2.d, * testsuite/gas/mips/compact-eh-el-5.d: Adjust. ld/ PR 21167 * testsuite/ld-elf/group9b.d: Adjust for relocs included in group.
2017-09-30Add a test for PR binutils/21978H.J. Lu4-0/+12
PR binutils/21978 * testsuite/ld-elf/pr21978.od: New file. * testsuite/ld-elf/pr21978a.c: Likewise. * testsuite/ld-elf/pr21978b.c: Likewise. * testsuite/ld-elf/shared.exp: Run PR binutils/21978 test.
2017-09-28Skip the PR 14918 linker test for ARM targets.Nick Clifton1-3/+13
I am applying a patch that has been lying around in the Fedora binutils sources for a while. It skips the PR14918 linker test for ARM based targets. This test checks that libgcc is not included in a link of an empty executable. This works for most targets, but on the ARM the crt1.o startup code calls __libc_csu_init which is in /usr/lib/libc_nonshared.a(elf-init.oS). This in turn needs __aeabi_unwind_cpp_pr0@@GCC_3.5 which is provided by libgcc_s.so.1, and so the test fails.
2017-09-28PR22220, BFD linker wrongly marks symbols as PREVAILING_DEF_IRONLYAlan Modra5-0/+39
non_ir_ref_dynamic wasn't being set in the case where we have a versioned dynamic symbol definition with a non-versioned matching IR symbol. bfd/ PR 22220 * elflink.c (_bfd_elf_merge_symbol): Set non_ir_ref_dynamic in a case where plugin_notice isn't called. ld/ * testsuite/ld-plugin/pr22220.h, * testsuite/ld-plugin/pr22220lib.cc, * testsuite/ld-plugin/pr22220lib.ver, * testsuite/ld-plugin/pr22220main.cc: New test. * testsuite/ld-plugin/lto.exp: Run it.
2017-09-26LD/testsuite: Fix undefined symbol tests for MIPS and S+core targetsMaciej W. Rozycki1-3/+23
Fix commit 647d4de92e06 ("Test undefined symbols in shared libraries") and remove "undefined symbols in shared lib (dyn reloc)" test failures for MIPS and S+core targets. This test assumes 3 dynamic relocation entries, however the respective psABIs define an extra single dummy *_NONE relocation at the beginning of the dynamic relocation table, which results in test output like the following for MIPS: Relocation section '.rel.dyn' at offset 0x33c contains 4 entries: Offset Info Type Sym.Value Sym. Name 00000000 00000000 R_MIPS_NONE 00010364 00000903 R_MIPS_REL32 00000000 undef_pfun 00010360 00000a03 R_MIPS_REL32 00000000 undef_data 00010368 00000b03 R_MIPS_REL32 00000000 undef_notype and S+core: Relocation section '.rel.dyn' at offset 0x274 contains 4 entries: Offset Info Type Sym.Value Sym. Name 00000000 00000000 R_SCORE_NONE 5ffe0464 00000e12 R_SCORE_REL32 00000000 undef_notype 5ffe045c 00000f12 R_SCORE_REL32 00000000 undef_data 5ffe0460 00001012 R_SCORE_REL32 00000000 undef_pfun targets respectively, and also n64 MIPS targets pad relocation triplets they use with extra *_NONE relocations, resulting in output like this: Relocation section '.rel.dyn' at offset 0x4c0 contains 4 entries: Offset Info Type Sym. Value Sym. Name 000000000000 000000000000 R_MIPS_NONE Type2: R_MIPS_NONE Type3: R_MIPS_NONE 000000010508 000900001203 R_MIPS_REL32 0000000000000000 undef_pfun Type2: R_MIPS_64 Type3: R_MIPS_NONE 000000010500 000a00001203 R_MIPS_REL32 0000000000000000 undef_data Type2: R_MIPS_64 Type3: R_MIPS_NONE 000000010510 000b00001203 R_MIPS_REL32 0000000000000000 undef_notype Type2: R_MIPS_64 Type3: R_MIPS_NONE Expect the right number of *_NONE relocations then, and adjust the total number of relocations expected accordingly. ld/ * testsuite/ld-undefined/undefined.exp: Correct the dyn reloc test for MIPS and S+core targets.
2017-09-22Add a test for PR ld/22150H.J. Lu5-0/+50
PR ld/22150 * testsuite/ld-elf/pr22150.vd: New file. * testsuite/ld-elf/pr22150.ver: Likewise. * testsuite/ld-elf/pr22150a.s: Likewise. * testsuite/ld-elf/pr22150b.s: Likewise. * testsuite/ld-elf/shared.exp: Run PR ld/22150 tests.
2017-09-21Reduce excessive .eh_frame alignment for powerpcAlan Modra1-6/+2
PowerPC64 .cfi directives use DW_EH_PE_sdata4 encoding for .eh_frame, so there is no real reason why .eh_frame should be 8 byte aligned. gas/ * config/tc-ppc.h (EH_FRAME_ALIGNMENT): Define. ld/ * testsuite/ld-powerpc/tlsopt5.wf: Update for reduced alignment.
2017-09-15PR22118, Incorrectly-capitalized regexpAlan Modra1-1/+1
PR 22118 * testsuite/ld-aarch64/erratum843419.d: Correct regexp.
2017-09-14globalaudit.rd: Allow additional bits in DT_FLAGS_1H.J. Lu1-1/+1
With -PIE on x86-64, we get 0x000000006ffffffb (FLAGS_1) Flags: GLOBAUDIT PIE We should allow additional bits in DT_FLAGS_1. PR ld/22139 * testsuite/ld-elf/globalaudit.rd: Allow additional bits in DT_FLAGS_1.
2017-09-14x86: Cache section contents and relocationsH.J. Lu6-0/+48
bfd/ PR ld/22135 * elf32-i386.c (elf_i386_convert_load_reloc): Add an argument to indicate if conversion is performed. (elf_i386_check_relocs): Cache section contents and relocations if conversion is performed. * elf64-x86-64.c (elf_x86_64_check_relocs): Cache section contents and relocations if conversion is performed. ld/ PR ld/22135 * testsuite/ld-i386/i386.exp: Run pr22135. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-i386/pr22135.d: New file. * testsuite/ld-i386/pr22135.s: Likewise. * testsuite/ld-x86-64/pr22135.d: Likewise. * testsuite/ld-x86-64/pr22135.s: Likewise.
2017-09-10PowerPC64 --plt-alignAlan Modra3-14/+18
This changes the PowerPC64 --plt-align option to perform the usual alignment of code as suggested by its name, as well as the previous behaviour of padding so as to reduce boundary crossing. The old behaviour is had by using a negative parameter. The default is also changed to align plt stub code by default to 32 byte boundaries, the point being to get better bctr branch prediction on power8 and power9 hardware. bfd/ * elf64-ppp.c (plt_stub_pad): Handle positive and negative plt_stub_align. ld/ * ld.texinfo (--plt-align): Describe new behaviour of option. * emultempl/ppc64elf.em (params): Default plt_stub_align to 5. * testsuite/ld-powerpc/powerpc.exp: Pass --no-plt-align for selected tests. * testsuite/ld-powerpc/relbrlt.d: Pass --no-plt-align. * testsuite/ld-powerpc/elfv2so.d: Adjust expected output.
2017-09-09x86: Properly handle __ehdr_startH.J. Lu16-0/+140
After _bfd_i386_elf_convert_load and _bfd_x86_64_elf_convert_load are removed, elf_i386_convert_load_reloc and elf_x86_64_convert_load_reloc see __ehdr_start as an undefined symbol when they are called from check_relocs to convert GOT relocations against local symbols. But __ehdr_start will be defined as a hidden symbol by linker at the later stage if it is referenced. This patch marks __ehdr_start as a defined local symbol at the start of check_relocs if it is referenced and not defined. bfd/ PR ld/22115 * elf32-i386.c (elf_i386_convert_load_reloc): Check linker_def. Don't use UNDEFINED_WEAK_RESOLVED_TO_ZERO. * elf64-x86-64.c (elf_x86_64_convert_load_reloc): Check linker_def. Don't use UNDEFINED_WEAK_RESOLVED_TO_ZERO. * elfxx-x86.c (_bfd_x86_elf_link_check_relocs): Set local_ref and linker_def on __ehdr_start if it is referenced and not defined. (_bfd_x86_elf_link_symbol_references_local): Also set local_ref and return TRUE when building executable, if a symbol has non-GOT/non-PLT relocations in text section or there is no dynamic linker. * elfxx-x86.h (elf_x86_link_hash_entry): Add linker_def. ld/ PR ld/22115 * ld-i386/i386.exp: Run PR ld/22115 tests, * ld/testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-i386/pr22115-1.s: New file. * testsuite/ld-i386/pr22115-1a.d: Likewise. * testsuite/ld-i386/pr22115-1b.d: Likewise. * testsuite/ld-i386/pr22115-1c.d: Likewise. * testsuite/ld-i386/pr22115-1d.d: Likewise. * testsuite/ld-x86-64/pr22115-1.s: Likewise. * testsuite/ld-x86-64/pr22115-1a-x32.d: Likewise. * testsuite/ld-x86-64/pr22115-1a.d: Likewise. * testsuite/ld-x86-64/pr22115-1b-x32.d: Likewise. * testsuite/ld-x86-64/pr22115-1b.d: Likewise. * testsuite/ld-x86-64/pr22115-1c-x32.d: Likewise. * testsuite/ld-x86-64/pr22115-1c.d: Likewise. * testsuite/ld-x86-64/pr22115-1d-x32.d: Likewise. * testsuite/ld-x86-64/pr22115-1d.d: Likewise.
2017-09-06x86-64: Add R_X86_64_converted_reloc_bitH.J. Lu4-6/+4
Add R_X86_64_converted_reloc_bit to relocation type to indicate if a relocation is converted from a GOTPCREL relocation. Linker now generates failed to convert GOTPCREL relocation; relink with --no-relax for all cases, including relocations against local symbols. bfd/ * elf64-x86-64.c (R_X86_64_converted_reloc_bit): New. (elf_x86_64_info_to_howto): Get the real relocation type by masking out R_X86_64_converted_reloc_bit. (elf_x86_64_check_tls_transition): Get the real relocation type by masking out R_X86_64_converted_reloc_bit. (elf_x86_64_convert_load_reloc): Set R_X86_64_converted_reloc_bit instead of setting converted_reloc. (elf_x86_64_relocate_section): Check R_X86_64_converted_reloc_bit instead of converted_reloc. Get the real relocation type by masking out R_X86_64_converted_reloc_bit. (elf_x86_64_link_setup_gnu_properties): Verify that the value of R_X86_64_converted_reloc_bit is valid. * elfxx-x86.h (converted_reloc): Removed. ld/ * testsuite/ld-x86-64/pr19609-2a.d: Updated. * testsuite/ld-x86-64/pr19609-2b.d: Likewise. * testsuite/ld-x86-64/pr19609-4a.d: Likewise. * testsuite/ld-x86-64/pr19609-4c.d: Likewise.
2017-09-05x86-64: Properly set converted_relocH.J. Lu3-3/+3
Linker now generates failed to convert GOTPCREL relocation; relink with --no-relax for more cases. bfd/ * elf64-x86-64.c (elf_x86_64_convert_load_reloc): Properly set converted_reloc. ld/ * testsuite/ld-x86-64/pr19609-5d.d: Updated. * testsuite/ld-x86-64/pr19609-7a.d: Likewise. * testsuite/ld-x86-64/pr19609-7c.d: Likewise.
2017-09-05x86-64: Improve GOTPCREL relocation conversionH.J. Lu2-3/+3
When GOTPCREL relocation conversion leads to relocation overflow, we may get a mysterious linker message, like relocation truncated to fit: R_X86_64_32S against symbol `foo' This patch changes the linker message to failed to convert GOTPCREL relocation; relink with --no-relax bfd/ * elf64-x86-64.c (elf_x86_64_convert_load_reloc): Remove the sec argument. Don't check relocation overflow. Avoid relocation overflow if --no-relax is used. Set converted_reloc on symbol if a GOTPCREL relocation is converted. (elf_x86_64_relocate_section): Issue a fatal error and suggest --no-relax if GOTPCREL relocation conversion leads to relocation overflow. * elfxx-x86.h (elf_x86_link_hash_entry): Add converted_reloc. ld/ * testsuite/ld-x86-64/pr19609-4e.d: Updated. * testsuite/ld-x86-64/pr19609-6a.d: Likewise.
2017-09-03x86-64: Set tlsdesc_plt if GOT_TLS_GDESC_P is trueH.J. Lu3-0/+87
We need to set tlsdesc_plt for x86-64 if GOT_TLS_GDESC_P is true when allocating dynamic relocations so that _bfd_x86_elf_size_dynamic_sections will generate TLSDESC_PLT and TLSDESC_GOT in x86-64 output. bfd/ PR ld/22071 * elfxx-x86.c (elf_x86_allocate_dynrelocs): Set tlsdesc_plt for x86-64 if GOT_TLS_GDESC_P is true. ld/ PR ld/22071 * testsuite/ld-x86-64/pr22071.d: New file. * testsuite/ld-x86-64/pr22071.s: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run pr22071.
2017-09-01x86-64: Check ELF_COMMON_DEF_P for common symbolsH.J. Lu3-0/+70
bfd/ PR ld/22064 * elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Check ELF_COMMON_DEF_P for common symbols. ld/ PR ld/22064 * testsuite/ld-x86-64/pr22064a.S: New file. * testsuite/ld-x86-64/pr22064b.c: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run PR ld/22064 test.
2017-09-01x86: Correct unwind information for the second PLTH.J. Lu22-49/+522
For i386, generate unwind information for the second PLT. For x32, correct alignment of .eh_frame section for the second PLT. bfd/ PR ld/22061 * elf32-i386.c (elf_i386_link_setup_gnu_properties): Create .eh_frame section for the second PLT. * elf64-x86-64.c (elf_x86_64_link_setup_gnu_properties): Correct alignment of .eh_frame section for the second PLT. ld/ PR ld/22061 * testsuite/ld-i386/ibt-plt-1.d: Updated. * testsuite/ld-i386/ibt-plt-2a.d: Likewise. * testsuite/ld-i386/ibt-plt-2c.d: Likewise. * testsuite/ld-i386/ibt-plt-3a.d: Likewise. * testsuite/ld-i386/ibt-plt-3c.d: Likewise. * testsuite/ld-x86-64/ibt-plt-1-x32.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2a-x32.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2c-x32.d: Likewise. * testsuite/ld-x86-64/ibt-plt-3a-x32.d: Likewise. * testsuite/ld-x86-64/ibt-plt-3c-x32.d: Likewise. * testsuite/ld-i386/ibt-plt-2b.d: Pass --hash-style=sysv to ld and dump unwind information. * testsuite/ld-i386/ibt-plt-2d.d: Likewise. * testsuite/ld-i386/ibt-plt-3b.d: Likewise. * testsuite/ld-i386/ibt-plt-3d.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2b-x32.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2b.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2d-x32.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2d.d: Likewise. * testsuite/ld-x86-64/ibt-plt-3b-x32.d: Likewise. * testsuite/ld-x86-64/ibt-plt-3b.d: Likewise. * testsuite/ld-x86-64/ibt-plt-3d-x32.d: Likewise. * testsuite/ld-x86-64/ibt-plt-3d.d: Likewise.
2017-08-31Add a test for PR ld/22048H.J. Lu4-0/+38
PR ld/22048 * testsuite/ld-x86-64/pr22048.d: New file. * testsuite/ld-x86-64/pr22048a.s: Likewise. * testsuite/ld-x86-64/pr22048b.s: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run pr22048.
2017-08-31Remove .eh_frame zero terminatorsAlan Modra2-13/+3
The machinery to do this was there, but not enabled if the terminator was the only thing in the section. bfd/ * elf-eh-frame.c (_bfd_elf_parse_eh_frame): Don't exit early for a section containing just a terminator. Allow multiple terminators at end of section. * elflink.c (bfd_elf_discard_info): Iterate over .eh_frame sections when not adding alignment. Assert on terminator in the middle of FDEs. ld/ * testsuite/ld-elf/eh3.d: Update. * testsuite/ld-elf/eh4.d: Update.
2017-08-30LD/testsuite: Also discard `.MIPS.options' in orphan testsMaciej W. Rozycki1-2/+2
Complement commit 5b5f4e6f8cd2 ("ld: Early detection of orphans we know will be discarded") and add `.MIPS.options' to the list of sections discarded with orphan tests, removing failures like: ./ld-new: error: unplaced orphan section `.MIPS.options' from `tmpdir/orphan-11.o'. FAIL: ld-elf/orphan-11 and: ./ld-new: error: unplaced orphan section `.MIPS.options' from `tmpdir/orphan-12.o'. FAIL: ld-elf/orphan-12 from n64 MIPS testing. ld/ * testsuite/ld-elf/orphan-11.ld: Also discard `.MIPS.options' sections.
2017-08-30MIPS/BFD: Correct microMIPS cross-mode BAL to JALX relaxationMaciej W. Rozycki13-0/+139
Fix a bug in commit a6ebf6169a1b ("MIPS: Convert cross-mode BAL to JALX") and in BFD linker relaxation correct the microMIPS interpretation of the branch offset, which is supposed to be shifted by 1 bit, rather than 2 as in the regular MIPS case. bfd/ * elfxx-mips.c (mips_elf_perform_relocation): Correct microMIPS branch offset interpretation. gas/ * testsuite/gas/mips/branch-addend-micromips.d: New test. * testsuite/gas/mips/branch-addend-micromips-n32.d: New test. * testsuite/gas/mips/branch-addend-micromips-n64.d: New test. * testsuite/gas/mips/branch-addend-micromips.s: New test source. * testsuite/gas/mips/mips.exp: Run the new tests. ld/ * testsuite/ld-mips-elf/bal-jalx-addend-micromips.d: New test. * testsuite/ld-mips-elf/bal-jalx-addend-micromips-n32.d: New test. * testsuite/ld-mips-elf/bal-jalx-addend-micromips-n64.d: New test. * testsuite/ld-mips-elf/bal-jalx-local-micromips.d: New test. * testsuite/ld-mips-elf/bal-jalx-local-micromips-n32.d: New test. * testsuite/ld-mips-elf/bal-jalx-local-micromips-n64.d: New test. * testsuite/ld-mips-elf/bal-jalx-pic-micromips.d: New test. * testsuite/ld-mips-elf/bal-jalx-pic-micromips-n32.d: New test. * testsuite/ld-mips-elf/bal-jalx-pic-micromips-n64.d: New test. * testsuite/ld-mips-elf/bal-jalx-pic-ignore-micromips.d: New test. * testsuite/ld-mips-elf/bal-jalx-pic-ignore-micromips-n32.d: New test. * testsuite/ld-mips-elf/bal-jalx-pic-ignore-micromips-n64.d: New test. * testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2017-08-30PowerPC TPREL16_HA/LO reloc optimizationAlan Modra10-109/+178
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.
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