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2014-02-19Control powerpc64-ld provision of register save/restoreAlan Modra3-1/+10
This patch allows the user to override powerpc64-ld's default for providing linker generated register save and restore functions as used by gcc -Os code. Normally these are not provided by ld -r, so Linux kernel modules have needed to include their own copies. bfd/ * elf64-ppc.h (struct ppc64_elf_params): Add save_restore_funcs. * elf64-ppc.c (ppc64_elf_func_desc_adjust): Use it to control provision of out-of-line register save/restore routines. ld/ * emultempl/ppc64elf.em (params): Init new field. (ppc_create_output_section_statements): Set params.save_restore_funcs default. (PARSE_AND_LIST_*): Add support for --save-restore-funcs and --no-save-restore-funcs.
2014-02-18The PT_DYNAMIC segment was being hard coded to have read, write, andJack Carter2-12/+5
execute permission regardless of the underlying PT_LOAD segment permissions. Deleting this code allows the default linker behavior which is to set the dynamic segment to the same permissions as the sections that make it up. This change alters one existing test case to check the segment flags for PT_DYNAMIC. bfd/ChangeLog * elfxx-mips.c(_bfd_mips_elf_modify_segment_map): Deleted hard coding of PT_DYNAMIC segment flags. ld/testsuite/ChangeLog * ld-mips-elf/pic-and-nonpic-3a.sd: Check DYNAMIC segment flags.
2014-02-19daily updateAlan Modra1-1/+1
2014-02-18daily updateAlan Modra1-1/+1
2014-02-17PR binutils/16595Jan Kratochvil2-13/+37
abfd->section_count unexpectedly changes between 218 and 248 in: 150 bfd_simple_get_relocated_section_contents (bfd *abfd, [...] 218 saved_offsets = malloc (sizeof (struct saved_output_info) 219 * abfd->section_count); [...] 230 _bfd_generic_link_add_symbols (abfd, &link_info); [...] 248 bfd_map_over_sections (abfd, simple_restore_output_info, saved_offsets); _bfd_generic_link_add_symbols increases section_count and simple_restore_output_info later reads unallocated part of saved_offsets. READ of size 8 at 0x601c0000c5c0 thread T0 #0 0x1124770 in simple_restore_output_info (.../gdb/gdb+0x1124770) #1 0x10ecd51 in bfd_map_over_sections (.../gdb/gdb+0x10ecd51) #2 0x1125150 in bfd_simple_get_relocated_section_contents (.../gdb/gdb+0x1125150) bfd/ 2014-02-17 Jan Kratochvil <jan.kratochvil@redhat.com> PR binutils/16595 * simple.c (struct saved_offsets): New. (simple_save_output_info): Use it for ptr. (simple_restore_output_info): Use it for ptr. Check section_count. (bfd_simple_get_relocated_section_contents): Use it for saved_offsets.
2014-02-17Consolidate ppc64 ld/bfd communicationAlan Modra3-133/+159
Moves assorted variables used to communicate between ld and bfd into a struct, hooks it into the bfd link_hash_table early, and removes all other places where such variables were passed piecemeal. bfd/ * elf64-ppc.h (struct ppc64_elf_params): Define. (ppc64_elf_init_stub_bfd, ppc64_elf_edit_opd, ppc64_elf_tls_setup, ppc64_elf_setup_section_lists, ppc64_elf_size_stubs, ppc64_elf_build_stubs): Update prototype. * elf64-ppp.c (struct ppc_link_hash_table): Add params, delete other fields now in params. Adjust code throughout file. (ppc64_elf_init_stub_bfd): Delete "abfd" parameter, add "params". Save params pointer in htab. (ppc64_elf_edit_opd, ppc64_elf_tls_setup, ppc64_elf_setup_section_lists, ppc64_elf_size_stubs, ppc64_elf_build_stubs): Remove parameters now in "params". ld/ * emultemps/ppc64elf.em (params): New static struct replacing various other static vars. Adjust code throughout file.
2014-02-17ppc476 workaround for ld -r fixesAlan Modra2-2/+57
This fixes the glaring error that the ppc476 workaround wasn't actually enabled for ld -r, and adjusts relocations to match moved code. bfd/ * elf32-ppc.c (ppc_elf_relocate_section): Move relocs on insns patched for ppc476 workaround. Reapply branch taken/not taken relocs. ld/ * emultempl/ppc32elf.em (ppc_after_open_output): Really enable ppc476 workaround for ld -r.
2014-02-17daily updateAlan Modra1-1/+1
2014-02-16daily updateAlan Modra1-1/+1
2014-02-15daily updateAlan Modra1-1/+1
2014-02-14daily updateAlan Modra1-1/+1
2014-02-13daily updateAlan Modra1-1/+1
2014-02-12Fix bad interaction between --relax and tls optimisationAlan Modra2-0/+62
Adding long-branch stubs for __tls_get_addr calls that are optimised away is silly. It also causes assertion failures on newer object files that use R_PPC_TLSGD and R_PPC_TLSLD marker relocs, and half-optimised (ie. broken) code for older object files. PR 16546 * elf32-ppc.c (ppc_elf_relax_section): Don't build long-branch stubs for calls to __tls_get_addr that we know will later be optimised away.
2014-02-12Enable ppc476 workaround for ld -r.Alan Modra3-7/+19
The Linux kernel builds modules using ld -r. These might need the ppc476 workaround, so enable it for ld -r if sections have sufficient alignment to tell location within a page. bfd/ * elf32-ppc.c (ppc_elf_relax_section): Enable ppc476 workaround for ld -r, when code sections are sufficiently aligned. * elf32-ppc.h (struct ppc_elf_params): Delete pagesize. Add pagesize_p2. ld/ * emultempl/ppc32elf.em (pagesize): New static var. (ppc_after_open_output): Set params.pagesize_p2 from pagesize. (PARSE_AND_LIST_ARGS_CASES): Adjust to use pagesize.
2014-02-12PR15530, mark symbol in executables if it matches dynamic_listAlan Modra3-7/+21
For powerpc64 as HJ did earlier for other ELF targets, and a tidy. PR gold/15530 * elf64-ppc.c (ppc64_elf_gc_mark_dynamic_ref): Support --export-dynamic and --dynamic-list marking of symbols. * elflink.c (bfd_elf_gc_mark_dynamic_ref_symbol): Reorder cheap tests first.
2014-02-12daily updateAlan Modra1-1/+1
2014-02-11daily updateAlan Modra1-1/+1
2014-02-10Mark symbol in executables if it matches dynamic_listH.J. Lu2-1/+11
bfd/ PR gold/16530 * elflink.c (bfd_elf_gc_mark_dynamic_ref_symbol): Mark symbol in executables if it matches dynamic_list. ld/testsuite/ PR gold/16530 * ld-elf/dynamic-1.c: New file. * ld-elf/dynamic-1.rd: Likewise. * ld-elf/dynamic-1.syms: Likewise. * ld-elf/shared.exp (build_tests): Add dynamic-1.
2014-02-10Add PR reference.Rainer Orth1-0/+1
2014-02-10binutils potfiles regenAlan Modra3-1507/+1925
Adds nds32 files to POTFILES.in
2014-02-10daily updateAlan Modra1-1/+1
2014-02-09powerpc relax_section and section contents cacheAlan Modra5-108/+100
This patch provides a means for backend relax_section support to increase the size of a section without needing to reallocate section contents. This helps reduce memory usage when the added space does not need to be written in relax_section, as is the case for powerpc. Writing the stubs later means a few tweaks are needed in the powerpc relocate_section function, but also removes some code duplication since the extra ld -r relocs can be written there too. * elf-bfd.h (struct elf_backend_data): Add caches_rawsize. * elfxx-target.h (elf_backend_caches_rawsize): Define. (elfNN_bed): Init new field. * elflink.c (elf_link_input_bfd): Handle caches_rawsize. * elf32-ppc.c (shared_stub_entry): Zero addi offset. (ppc_elf_relax_section): Don't reallocate section here, write stubs, or write out relocs for ld -r here.. (ppc_elf_relocate_section): ..instead write stubs here, and use existing code to write out relocs for ld -r. Fix offset adjustment on reloc for little-endian. (elf_backend_caches_rawsize): Define.
2014-02-09daily updateAlan Modra1-1/+1
2014-02-08daily updateAlan Modra1-1/+1
2014-02-07 * cache.c (bfd_cache_max_open): Cast RLIM_INFINITY to rlim_t.Rainer Orth2-1/+5
2014-02-07daily updateAlan Modra1-1/+1
2014-02-06daily updateAlan Modra1-1/+1
2014-02-05daily updateAlan Modra1-1/+1
2014-02-04Fix PowerPC targets minor memory leaks found by CoverityJan Kratochvil3-8/+44
bfd/ 2014-02-04 Jan Kratochvil <jan.kratochvil@redhat.com> * coff-rs6000.c (xcoff_write_archive_contents_big): Free OFFSETS in return paths. Three times. * elf64-ppc.c (ppc64_elf_link_hash_table_create): Free HTAB in all return paths. (ppc64_elf_tls_optimize): Free TOC_REF in return path. (ppc64_elf_edit_toc): Free USED in return path.
2014-02-04daily updateAlan Modra1-1/+1
2014-02-03Nios II large-GOT relocationsSandra Loosemore5-13/+143
2014-02-03 Sandra Loosemore <sandra@codesourcery.com> include/elf/ * nios2.h (R_NIOS2_GOT_LO, R_NIOS2_GOT_HA): New. (R_NIOS2_CALL_LO, R_NIOS2_CALL_HA): New. (R_NIOS2_ILLEGAL): Adjust. gas/ * config/tc-nios2.c (md_apply_fix): Test for new relocs. (nios2_special_reloc): Add %call_lo, %call_hiadj, %got_lo, %got_hiadj relocation operators. Sort table and add comment to explain ordering. (nios2_fix_adjustable): Test for new relocs. * doc/c-nios2.texi (Nios II Relocations): Document new relocation operators. bfd/ * reloc.c (BFD_RELOC_NIOS2_GOT_LO, BFD_RELOC_NIOS2_GOT_HA): New. (BFD_RELOC_NIOS2_CALL_LO, BFD_RELOC_NIOS2_CALL_HA): New. * libbfd.h: Regenerated. * bfd-in2.h: Regenerated. * elf32-nios2.c (elf_nios2_howto_table_rel): Add new relocations. (nios2_reloc_map): Likewise. (GOT_USED, CALL_USED): Renamed from GOT16_USED and CALL16_USED. Fixed all references. (nios2_elf32_relocate_section): Add new relocations. (nios2_elf32_check_relocs): Likewise. (nios2_elf32_gc_sweep_hook): Likewise.
2014-02-03ppc476 icache bug workaroundAlan Modra5-327/+611
This implements a work-around for an icache bug on 476 that can cause execution of stale instructions when control falls through from one page to the next. The idea is to prevent such fall-through by replacing the last instruction on a page with a branch to a patch area containing the instruction, then branch to the next page. The patch also fixes a number of bugs in the existing support for long branch trampolines. bfd/ * elf32-ppc.c (struct ppc_elf_link_hash_table): Add params. Delete emit_stub_syms, no_tls_get_addr_opt. Update all uses. (ppc_elf_link_params): New function. (ppc_elf_create_glink): Align .glink to 64 bytes for ppc476 workaround. (ppc_elf_select_plt_layout): Remove plt_style and emit_stub_syms parameters. Use htab->params instead. (ppc_elf_tls_setup): Remove no_tls_get_addr_opt parameter. (ppc_elf_size_dynamic_sections): Align __glink_PLTresolve to 64 bytes for ppc476 workaround. (struct ppc_elf_relax_info): New. (ppc_elf_relax_section): Exclude linker created sections and those too small to hold one instruction. Don't add another branch around trampolines on later relax passes. Don't generate trampolines for undefined symbols when !relocatable, nor for plugin symbols. Allocate space for ppc476 workaround patch area. Free fixups on error return path. (ppc_elf_relocate_section): Handle ppc476 workaround patching. * elf32-ppc.h (struct ppc_elf_params): New. (ppc_elf_select_plt_layout, ppc_elf_tls_setup): Update prototype. (ppc_elf_link_params): Declare. * section.c (SEC_INFO_TYPE_TARGET): Define. * bfd-in2.h: Regenerate. ld/ * emultempl/ppc32elf.em (no_tls_get_addr_opt, emit_stub_syms) plt_style): Delete. Adjust all refs to instead use.. (params): ..this. New variable. (ppc_after_open_output): New function. Tweak params and pass to ppc_elf_link_params. (ppc_after_open): Adjust ppc_elf_select_plt_layout call. (ppc_before_allocation): Adjust ppc_elf_tls_setup call. Enable relaxation for ppc476 workaround. (PARSE_AND_LIST_*): Add --{no-,}ppc476-workaround support. (LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS): Define.
2014-02-03daily updateAlan Modra1-1/+1
2014-02-02Correct Nios II GOT pointer initialization.Sandra Loosemore2-14/+53
2014-02-02 Sandra Loosemore <sandra@codesourcery.com> bfd/ * elf32-nios2.c (struct elf32_nios2_link_hash_table): Add h_gp_got field. (nios2_elf32_relocate_section): Use got_base to adjust GOT-pointer-relative relocations relative to _gp_got. (create_got_section): Create _gp_got symbol. (nios2_elf32_finish_dynamic_symbol): Make _gp_got absolute. (nios2_elf32_size_dynamic_sections): Set _gp_got offset.
2014-02-02daily updateAlan Modra1-1/+1
2014-02-01daily updateAlan Modra1-1/+1
2014-01-30Nios II CALL26 linker relaxationSandra Loosemore6-41/+1165
2014-01-30 Sandra Loosemore <sandra@codesourcery.com> bfd/ * bfd-in2.h: Update from reloc.c. * elf32-nios2.c: Include elf32-nios2.h. (elf_nios2_howto_table_rel): Add entry for R_NIOS2_CALL26_NOAT. (nios2_reloc_map): Likewise. (enum elf32_nios2_stub_type): Declare. (struct elf32_nios2_stub_hash_entry): Declare. (nios2_stub_hash_entry, nios2_stub_hash_lookup): New macros. (struct elf32_nios2_link_hash_entry): Add hsh_cache field. (struct elf32_nios2_link_hash_table): Add new fields bstab, stub_bfd, add_stub_section, layout_sections_again, stub_group, bfd_count, top_index, input_list, all_local_syms. (nios2_call26_stub_entry): New. (nios2_elf32_install_imm16): Move up in file. (nios2_elf32_install_data): Move up in file. (hiadj): Move up in file. (stub_hash_newfunc): New. (link_hash_newfunc): Initialize hsh_cache field. (STUB_SUFFIX): New. (nios2_stub_name): New. (nios2_get_stub_entry): New. (nios2_add_stub): New. (nios2_elf32_setup_section_lists): New. (nios2_elf32_next_input_section): New. (CALL26_SEGMENT): New. (MAX_STUB_SECTION_SIZE): New. (group_sections): New. (nios2_type_of_stub): New. (nios2_build_one_stub): New. (nios2_size_one_stub): New. (get_local_syms): New. (nios2_elf32_size_stubs): New. (nios2_elf32_build_stubs): New. (nios2_elf32_do_call26_relocate): Correct CALL26 overflow test. (nios2_elf32_relocate_section): Handle R_NIOS2_CALL26_NOAT. Add trampolines for R_NIOS2_CALL26 stubs. (nios2_elf32_check_relocs): Handle R_NIOS2_CALL26_NOAT. (nios2_elf32_gc_sweep_hook): Likewise. (nios2_elf32_link_hash_table_create): Initialize the stub hash table. (nios2_elf32_link_hash_table_free): New. (bfd_elf32_bfd_link_hash_table_free): Define. * elf32-nios2.h: New file. * libbfd.h: Update from reloc.c. * reloc.c (BFD_RELOC_NIOS2_CALL26_NOAT): New. gas/ * config/tc-nios2.c (md_apply_fix): Handle BFD_RELOC_NIOS2_CALL26_NOAT. (nios2_assemble_args_m): Likewise. (md_assemble): Likewise. gas/testsuite/ * gas/nios2/call26_noat.d: New. * gas/nios2/call26_noat.s: New. * gas/nios2/call_noat.d: New. * gas/nios2/call_noat.s: New. include/elf/ * nios2.h (elf_nios2_reloc_type): Add R_NIOS2_CALL26_NOAT. ld/ * Makefile.am (enios2elf.c, enios2linux.c): Update dependencies. * Makefile.in: Regenerated. * emulparams/nios2elf.sh (EXTRA_EM_FILE): Set. * emulparams/nios2linux.sh (EXTRA_EM_FILE): Set. * emultempl/nios2elf.em: New file. * gen-doc.texi (NIOSII): Set. * ld.texinfo (NIOSII): Set. ld/testsuite/ * ld-nios2/relax_call26.s: New. * ld-nios2/relax_call26_boundary.ld: New. * ld-nios2/relax_call26_boundary.s: New. * ld-nios2/relax_call26_boundary_c8.d: New. * ld-nios2/relax_call26_boundary_cc.d: New. * ld-nios2/relax_call26_boundary_d0.d: New. * ld-nios2/relax_call26_boundary_d4.d: New. * ld-nios2/relax_call26_boundary_d8.d: New. * ld-nios2/relax_call26_boundary_dc.d: New. * ld-nios2/relax_call26_boundary_f0.d: New. * ld-nios2/relax_call26_boundary_f4.d: New. * ld-nios2/relax_call26_boundary_f8.d: New. * ld-nios2/relax_call26_boundary_fc.d: New. * ld-nios2/relax_call26_cache.d: New. * ld-nios2/relax_call26_cache.ld: New. * ld-nios2/relax_call26_cache.s: New. * ld-nios2/relax_call26_multi.d: New. * ld-nios2/relax_call26_multi.ld: New. * ld-nios2/relax_call26_norelax.d: New. * ld-nios2/relax_call26_shared.d: New. * ld-nios2/relax_call26_shared.ld: New.
2014-01-31daily updateAlan Modra1-1/+1
2014-01-30daily updateAlan Modra1-1/+1
2014-01-29My patch to the binutils strip-10.d test was wrong. The osabi field should ↵Nick Clifton4-4/+15
always be set to ELFOSABI_GNU for binaries containing unique symbols. So I am reverting that patch and instead applying the patch below to fix up the targets that were triggering the test failure. bfd/ChangeLog 2014-01-29 Nick Clifton <nickc@redhat.com> * elf32-metag.c (elf_metag_post_process_headers): Call _bfd_elf_post_process_headers. * elf32-sh64.c (sh64_elf_copy_private_data): Call _bfd_elf_copy_private_data. * elf64-sh64.c (sh_elf64_copy_private_data_internal): Likewise. binutils/testsuite/ChangeLog 2014-01-29 Nick Clifton <nickc@redhat.com> * binutils-all/strip-10.d: Revert previous delta.
2014-01-29Following up on Tom's suggestion I am checking in a patch to replace the variousNick Clifton5-11/+81
bfd_xxx_set macros with static inline functions, so that we can avoid compile time warnings about comma expressions with unused values. * bfd-in.h (bfd_set_section_vma): Delete. (bfd_set_section_alignment): Delete. (bfd_set_section_userdata): Delete. (bfd_set_cacheable): Delete. * bfd.c (bfd_set_cacheable): New static inline function. * section.c (bfd_set_section_userdata): Likewise. (bfd_set_section_vma): Likewise. (bfd_set_section_alignment): Likewise. * bfd-in2.h: Regenerate.
2014-01-28When parsing a DW_FORM_ref_addr attribute the CU containing theNick Clifton2-0/+30
abbreviation may not be the current CU. Thus we need to make sure that when we read the abbreviation we use the correct CU. * dwarf2.c (find_abstract_instance_name): For DW_FORM_ref_addr attributes select the CU containing the abbreviation, which may not be the current CU.
2014-01-28daily updateAlan Modra1-1/+1
2014-01-27daily updateAlan Modra1-1/+1
2014-01-26daily updateAlan Modra1-1/+1
2014-01-25daily updateAlan Modra1-1/+1
2014-01-24Fixes powerpc64le ld segfaults when --emit-relocs is used.Alan Modra2-5/+11
ELFv2 needs fewer relocs to annotate plt call stubs. I correctly allocated a smaller buffer and wrote the proper relocs, but stupidly bumped the reloc count as for ELFv1. * elf64-ppc.c (ppc_build_one_stub): Correct reloc count passed to get_relocs for ELFv2.
2014-01-24daily updateAlan Modra1-1/+1
2014-01-23Issue a linker error if TLS sections are not adjacentH.J. Lu2-3/+29
Bad linker script may lead to TLS sections separated by non-TLS sections in output. This patch changes linker assert to a linker error to provide better linker diagnosis. PR ld/16498 * elf.c (_bfd_elf_map_sections_to_segments): Issue a linker error if TLS sections are not adjacent.
2014-01-23daily updateAlan Modra1-1/+1
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