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2017-02-23Correct VLE 16D and SDAREL relocationsAlan Modra2-27/+23
PR 20744 bfd/ * elf32-ppc.c (ppc_elf_howto_raw): Correct dst_mask on all VLE 16D relocations. (ppc_elf_vle_split16): Correct field mask and shift for 16D relocs. (ppc_elf_relocate_section): Correct calculation for VLE SDAREL relocs. ld/ * testsuite/ld-powerpc/vle-reloc-2.s: Use r6 for last insn of each group. * testsuite/ld-powerpc/vle-reloc-2.d: Update for above change and sdarel reloc fix.
2017-02-23Automatic date update in version.inGDB Administrator1-1/+1
2017-02-22PR ld/20828: Move symbol version processing ahead of GC symbol sweepMaciej W. Rozycki2-335/+360
Complement commit b531344c34b0 ("PR ld/20828: Reorder the symbol sweep stage of section GC") and commit 81ff47b3a546 ("PR ld/20828: Fix linker script symbols wrongly forced local with section GC") and move symbol version processing ahead of the symbol sweep stage of section GC, all in `bfd_elf_size_dynamic_sections', so that version symbols created stay in the global scope and are not output as local symbols to the dynamic symbol table in the presence of corresponding symbol definitions pulled from a DSO involved in a link. Consolidate the whole of symbol version processing into a single block from all parts scattered across the function and rearranging the local variables used as necessary, however leaving the setting of dynamic entries associated with the DT_VERDEF, DT_VERDEFNUM, DT_VERNEED and DT_VERNEEDNUM tags and the SEC_EXCLUDE flag for unused `.gnu.version' section in the original places. With the rearrangement of code blocks `Elf_Internal_Verneed *t' would shadow the previous definition of `struct bfd_elf_version_tree *t', so rename the former variable to `vn'. bfd/ PR ld/20828 * elflink.c (bfd_elf_size_dynamic_sections): Move symbol version processing ahead of the call to `elf_gc_sweep_symbol'. ld/ PR ld/20828 * testsuite/ld-elf/pr20828-d.sd: New test. * testsuite/ld-elf/pr20828-e.sd: New test. * testsuite/ld-elf/pr20828-v.od: New test. * testsuite/ld-elf/pr20828-v.ver: New test version script. * testsuite/ld-elf/pr20828-v.ld: New test linker script. * testsuite/ld-elf/pr20828.ld: Add `.gnu.version' and `.gnu.version_d'. * testsuite/ld-elf/shared.exp: Run the new tests.
2017-02-22Align .gnu_debuglink sections on a 4-byte boundary.Nick Clifton2-0/+13
PR binutils/21193 * opncls.c (bfd_create_gnu_debuglink_section): Give the newly created section 4-byte alignment.
2017-02-22Automatic date update in version.inGDB Administrator1-1/+1
2017-02-22PowerPC ld segfault on script discarding dynamic sectionsAlan Modra3-9/+18
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.
2017-02-21Alpha DT_RELAAlan Modra2-8/+19
* elf64-alpha.c (elf64_alpha_size_dynamic_sections): Only emit DT_RELA, DT_RELASZ, and DT_RELAENT when DT_RELASZ is non-zero.
2017-02-21Automatic date update in version.inGDB Administrator1-1/+1
2017-02-20Alpha executables segfault when linked with -z,nowAlan Modra2-15/+37
PR 21181 * elflink.c (bfd_elf_final_link): Make DT_REL/DT_RELA zero if DT_RELSZ/DT_RELASZ is zero.
2017-02-20Automatic date update in version.inGDB Administrator1-1/+1
2017-02-19Automatic date update in version.inGDB Administrator1-1/+1
2017-02-18Automatic date update in version.inGDB Administrator1-1/+1
2017-02-17Fix potential illegal memory access in ZLIB because of an erroneous ↵Nick Clifton2-1/+7
declaration of the size of the input buffer. * compress.c (bfd_get_full_section_contents): Remember to reduce compressed size by the sizeof the compression header when decompressing the contents.
2017-02-17bfd: Rename Chunk and S3ForcedPedro Alves2-11/+19
The direct references in objcopy kind of look like a hack to me, so I'm calling these symbols internal too. Certainly they aren't named and documented as a public BFD symbol today anyway. So ... give these bfd-internal symbols with external linkage a _bfd_ prefix to avoid collisions in the global symbol namespace. While at it, give them names that more closely match the corresponding option name that toggles them. Also while at it, fix a few related comment typos. gdb/ChangeLog: 2017-02-17 Pedro Alves <palves@redhat.com> * srec.c (Chunk): Rename to ... (_bfd_srec_len): ... this. (S3Forced): Rename to ... (_bfd_srec_forceS3): ... this. * objcopy.c: Adjust all references.
2017-02-17bfd: Rename bsd_write_armap and coff_write_armapPedro Alves6-22/+35
Give these bfd-internal symbols with external linkage a _bfd_ prefix to avoid collisions in the global symbol namespace. bfd/ChangeLog: 2017-02-17 Pedro Alves <palves@redhat.com> * archive.c (bsd_write_armap): Rename to ... (_bfd_bsd_write_armap): ... this. (coff_write_armap): Rename to ... (_bfd_coff_write_armap): ... this. * libbfd-in.h (bsd_write_armap): Rename to ... (_bfd_bsd_write_armap): ... this. (coff_write_armap): Rename to ... (_bfd_coff_write_armap): ... this. * aout-target.h, aout-tic30.c: Adjust all users. * libbfd.h: Regenerate.
2017-02-17bfd: Rename warn_deprecatedPedro Alves4-14/+23
Give this bfd-internal symbol with external linkage a _bfd_ prefix to avoid collisions in the global symbol namespace. bfd/ChangeLog: 2017-02-17 Pedro Alves <palves@redhat.com> * bfd-in.h (bfd_read, bfd_write): Adjust to rename. (warn_deprecated): Rename to ... (_bfd_warn_deprecated): ... this. * libbfd.c (warn_deprecated): Rename to ... (_bfd_warn_deprecated): ... this. * bfd-in2.h: Regenerate.
2017-02-17bfd: Rename real_{ftell, fseek, fopen}Pedro Alves7-22/+41
Give these bfd-internal symbols with external linkage a _bfd_ prefix to avoid collisions in the global symbol namespace. bfd/ChangeLog: 2017-02-17 Pedro Alves <palves@redhat.com> * bfdio.c (real_ftell): Rename to ... (_bfd_real_ftell): ... this. (real_fseek): Rename to ... (_bfd_real_fseek): ... this. (real_fopen): Rename to ... (_bfd_real_fopen): ... this. * libbfd-in.h (real_ftell): Rename to ... (_bfd_real_ftell): ... this. (real_fseek): Rename to ... (_bfd_real_fseek): ... this. (real_fopen): Rename to ... (_bfd_real_fopen): ... this. * cache.c, dwarf2.c, opncls.c: Adjust all callers. * libbfd.h: Regenerate.
2017-02-17bfd: Rename read_{signed,unsigned}_leb128, safe_read_leb128Pedro Alves7-55/+99
Give these bfd-internal symbols with external linkage a _bfd_ prefix to avoid collisions in the global symbol namespace. bfd/ChangeLog: 2017-02-17 Pedro Alves <palves@redhat.com> * dwarf2.c, elf-attrs.c, elf32-nds32.c: Adjust all callers. * libbfd.c (read_unsigned_leb128): Rename to ... (_bfd_read_unsigned_leb128): ... this. (read_signed_leb128): Rename to ... (_bfd_read_signed_leb128): ... this. (safe_read_leb128): Rename to ... (_bfd_safe_read_leb128): ... this. * libbfd-in.h (read_unsigned_leb128): Rename to ... (_bfd_read_unsigned_leb128): ... this. (read_signed_leb128): Rename to ... (_bfd_read_signed_leb128): ... this. (safe_read_leb128): Rename to ... (_bfd_safe_read_leb128): ... this. * libbfd.h: Renegerate.
2017-02-17Automatic date update in version.inGDB Administrator1-1/+1
2017-02-16bfd: Improve lookup of file / line information for errorsAndrew Burgess2-0/+37
When looking up file and line information (used from the linker to report error messages) if no symbol is passed in, then use the symbol list to look for a matching symbol. If a matching symbol is found then use this to look up the file / line information. This should improve errors when looking up file / line information for data sections. Hopefully we should find a matching data symbol, which should, in turn (we hope) match a DW_TAG_variable in the DWARF, this should allow us to give accurate file / line errors for data symbols. As the hope is to find a matching DW_TAG_variable in the DWARF then we ignore section symbols, and prefer global symbols to locals. bfd/ChangeLog: * dwarf2.c (_bfd_dwarf2_find_nearest_line): Perform symbol lookup before trying to fine matching file and line information. ld/ChangeLog: * testsuite/ld-elf/shared.exp: Update expected results. * testsuite/ld-elf/dwarf2.err: Likewise
2017-02-16bfd/dwarf: Improve use of previously loaded dwarf informationAndrew Burgess2-2/+30
When parsing DWARF data in order to report file/line type error messages we perform section placement to make section addresses unique within relocatable object files. Currently, if we reuse previously loaded (and cached) dwarf data then we neglect to perform section placement, the result is that the section addresses will not be unique, and we might, incorrectly associate an address with the wrong debug information, and so report an incorrect file and line number. Further we neglect to check that that bfd for which we are looking up debug information is actually the bfd for which the previous debug information was loaded, it is possible that we will reuse previously loaded debug information for a different bfd. And finally, due to following of gnu_debuglink links in one bfd to another, the process of checking that the cached debug information is valid requires us to track the original bfd in the cached debug information. The original debug information here is either the bfd that we're interested in, not the bfd we finally load the debug information from. bfd/ChangeLog: * dwarf2.c (struct dwarf2_debug): Add orig_bfd member. (_bfd_dwarf2_slurp_debug_info): If stashed debug information does not match current bfd, then reload debug information. Record bfd we're loading debug info for in the stash. If we have debug informatin in the cache then perform section placement before returning. ld/ChangeLog: * testsuite/ld-elf/dwarf.exp (build_tests): Add new tests. * testsuite/ld-elf/dwarf2.err: New file. * testsuite/ld-elf/dwarf2a.c: New file. * testsuite/ld-elf/dwarf2b.c: New file. * testsuite/ld-elf/dwarf3.c: New file. * testsuite/ld-elf/dwarf3.err: New file.
2017-02-16hppa -z relro againAlan Modra5-0/+30
I misunderstood the hppa alias problem. File offsets of segments need to be such that no page is mapped twice with different permissions. (Which still seems to me like something the kernel could fix, but anyhow, this is not so difficult to achieve in ld.) PR 21000 bfd/ * elf-bfd.h (struct elf_backend_data): Add no_page_alias. * elfxx-target.h (elf_backend_no_page_alias): Define. (elfNN_bed): Init new field. * elf.c (assign_file_positions_for_load_sections): If no_page_alias ensure PT_LOAD segment starts on a new page. * elf32-hppa.c (elf_backend_no_page_alias): Define. ld/ * testsuite/ld-elf/loadaddr1.d: Adjust for hppa file offsets. * testsuite/ld-elf/loadaddr2.d: Likewise. * testsuite/ld-elf/loadaddr3a.d: Likewise. * testsuite/ld-scripts/rgn-at5.d: Likewise.
2017-02-16PR21132, hppa-linux pie support doesn't workAlan Modra2-0/+8
This fixes a long-standing hppa bug seen when generating PIEs, and I think possible to trigger with forced local symbols in shared libraries. Not allocating enough space for PLT relocs results in ld writing outside of the buffer. PR 21132 * elf32-hppa.c (allocate_plt_static): Allocate space for relocs if pic.
2017-02-16[Patch] Add BFD_LINKER_CREATED to BFD_FLAGS_SAVEDJiong Wang3-4/+11
bfd/ * bfd.c (BFD_FLAGS_SAVED): Add BFD_LINKER_CREATED. * bfd-in2.h: Regenerated. Bug exposed by https://sourceware.org/ml/binutils/2017-02/msg00128.html
2017-02-16Automatic date update in version.inGDB Administrator1-1/+1
2017-02-15i386: Allow "lea foo@GOT, %reg" in PICH.J. Lu2-4/+14
"lea foo@GOT, %reg" is OK in PIC since it only loads the GOT offset into register, which can be used later with a GOT base register to get the value in the GOT entry. bfd/ PR ld/21168 * elf32-i386.c (elf_i386_relocate_section): Allow "lea foo@GOT, %reg" in PIC. ld/ PR ld/21168 * testsuite/ld-i386/i386.exp: Run pr21168. * testsuite/ld-i386/pr21168a.c: New file. * testsuite/ld-i386/pr21168b.S: Likewise.
2017-02-15Add a test for R_386_GOT32/R_386_GOT32X IFUNC reloc errorH.J. Lu2-1/+9
bfd/ PR ld/20244 * elf32-i386.c (elf_i386_relocate_section): Properly get IFUNC symbol name when reporting R_386_GOT32/R_386_GOT32X relocation error against local IFUNC symbol without a base register for PIC. ld/ PR ld/20244 * testsuite/ld-i386/i386.exp: Run pr20244-4a, pr20244-4b and pr20244-4c. * testsuite/ld-i386/pr20244-4.s: New file. * testsuite/ld-i386/pr20244-4a.d: Likewise. * testsuite/ld-i386/pr20244-4b.d: Likewise. * testsuite/ld-i386/pr20244-4c.d: Likewise.
2017-02-15PowerPC/BFD: Convert `%P: %H:' to `%H:' in error messagesMaciej W. Rozycki3-23/+32
Remove an inconsistency in BFD linker error messages across the PowerPC backends, where in the presence of line information the `%P: %H:' format sequence makes the first error message produced for any given function different from subsequent ones. Taking the `ld/testsuite/ld-powerpc/tocopt7.s' test case source as an example and the `powerpc-linux' target we have: $ as -gdwarf2 -o tocopt.o -a64 tocopt.s $ ld -o tocopt -melf64ppc tocopt.o ld: tocopt.o: In function `_start': tocopt.s:35:(.text+0x14): toc optimization is not supported for 0x3fa00000 instruction. ld: tocopt.s:49:(.text+0x34): toc optimization is not supported for 0x3fa00000 instruction. $ where the first error message does not have the source file name prefixed with the linker program executable's name, i.e. `ld:', whereas the second error message does, as would any subsequent. This is because with a multiple-line error message such as `%H' produces `%P' only prints the program executable's name on the first line and not any later ones. Also the PowerPC backend is the only part of BFD which uses `%P' along with one of the clever `%C', `%D', `%G', `%H' format specifiers. And last but not least this breaks a GNU Coding Standard's requirement that error messages from compilers should look like this: source-file-name:lineno: message also quoted in `vfinfo' code handling these specifiers. Convert `%P: %H:' to `%H:' in error messages across the PowerPC backends then, yielding: $ as -gdwarf2 -o tocopt.o -a64 tocopt.s $ ld -o tocopt -melf64ppc tocopt.o tocopt.o: In function `_start': tocopt.s:35:(.text+0x14): toc optimization is not supported for 0x3fa00000 instruction. tocopt.s:49:(.text+0x34): toc optimization is not supported for 0x3fa00000 instruction. $ instead, making it consistent and matching the GNU Coding Standard's requirement. bfd/ * elf32-ppc.c (ppc_elf_check_relocs): Use `%H:' rather than `%P: %H:' with `info->callbacks->einfo'. (ppc_elf_relocate_section): Likewise. * elf64-ppc.c (ppc64_elf_check_relocs): Likewise. (ppc64_elf_edit_toc): Likewise. (ppc64_elf_relocate_section): Likewise.
2017-02-15Automatic date update in version.inGDB Administrator1-1/+1
2017-02-14Update ppc64_elf_gc_mark_dynamic_refAlan Modra2-1/+8
* elf64-ppc.c (ppc64_elf_gc_mark_dynamic_ref): Support --gc-keep-exported, and test versioned field of sym rather than looking for @ in name.
2017-02-14Automatic date update in version.inGDB Administrator1-1/+1
2017-02-13Don't use "_gp" on RISC-V, use "_global_pointer$" insteadPalmer Dabbelt2-1/+6
"_gp" could conflict with ABI-complient code. While it's probably OK because MIPS uses this name, we figured it'd be good to clean this up before a release with RISC-V in it. ld/ChangeLog: 2017-02-13 Palmer Dabbelt <palmer@dabbelt.com> * emulparams/elf32lriscv-defs.sh (SDATA_START_SYMBOLS): Change _gp to __global_pointer$. bfd/ChangeLog: 2017-02-13 Palmer Dabbelt <palmer@dabbelt.com> * elfnn-riscv.c (riscv_global_pointer_value): Change _gp to __global_pointer$.
2017-02-13Fix invalid memory access in the BFD library's DWARF parser.Nick Clifton2-0/+10
PR binutils/21151 * dwarf2.c (_bfd_dwarf2_find_nearest_line): Check for an invalid unit length field.
2017-02-13Automatic date update in version.inGDB Administrator1-1/+1
2017-02-12Automatic date update in version.inGDB Administrator1-1/+1
2017-02-11Automatic date update in version.inGDB Administrator1-1/+1
2017-02-10Automatic date update in version.inGDB Administrator1-1/+1
2017-02-09Automatic date update in version.inGDB Administrator1-1/+1
2017-02-07Fix segfault when .plt section does not existAndrew Waterman2-3/+8
bfd/ChangeLog 2017-02-07 Andrew Waterman <andrew@sifive.com> * elfnn-riscv.c (riscv_elf_finish_dynamic_sections): Only write PLT entry size if PLT header is written.
2017-02-08Automatic date update in version.inGDB Administrator1-1/+1
2017-02-07bfd: Fix objdump --dynamic-reloc for SPARC 64-bit to show symbol names.Sheldon Lobo2-1/+11
Fixes ld/testsuite/ld-elf/shared.exp "Build libpr16496b.so". The root cause is in bfd/elf64-sparc.c, elf64_sparc_slurp_one_reloc_table(), bfd_get_symcount() was used for dynamic mode as well. The fix is to use bfd_get_dynamic_symcount(). This has been tested with sparc64-linux-gnu, and it does not introduce any regressions. bfd/ChangeLog: 2017-02-06 Sheldon Lobo <sheldon.lobo@oracle.com> Fix sparc64 dynamic relocation processing to use the dynamic symbol count. * elf64-sparc.c (elf64_sparc_slurp_one_reloc_table): Use 'dynamic' to determine if bfd_get_symcount() or bfd_get_dynamic_symcount() should be used.
2017-02-07Automatic date update in version.inGDB Administrator1-1/+1
2017-02-06Automatic date update in version.inGDB Administrator1-1/+1
2017-02-05Automatic date update in version.inGDB Administrator1-1/+1
2017-02-04Automatic date update in version.inGDB Administrator1-1/+1
2017-02-03Fix compile time warning messages when compiling binutils with gcc 7.0.1.Nick Clifton3-6/+18
PR 21096 bfd * coffcode.h (coff_write_object_contents): Enlarge size of s_name_buf in order to avoid compile time warning about possible integer truncation. * elf32-nds32.c (nds32_elf_ex9_import_table): Mask off lower 32-bits of insn value before printing into buffer. opcodes * aarch64-opc.c (print_register_list): Ensure that the register list index will fir into the tb buffer. (print_register_offset_address): Likewise. * tic6x-dis.c (print_insn_tic6x): Increase size of func_unit_buf.
2017-02-03Automatic date update in version.inGDB Administrator1-1/+1
2017-02-02MIPS/BFD: Respect the ELF gABI dynamic symbol table sort requirementMaciej W. Rozycki2-3/+22
Ensure all local symbols precede external symbols in the dynamic symbol table. No local symbols are expected to make it to the dynamic symbol table except for section symbols already taken care of, so this is really a safeguard only against a potential BFD bug otherwise not so harmful, which may become a grave one due to a symbol table sorting requirement violation (see PR ld/20828 for an example). This means however that no test suite coverage is possible for this change as code introduced here is not normally expected to trigger. Logically split then the part of the dynamic symbol table which is not global offset table mapped, into a local area at the beginning and an external area following. By the time `mips_elf_sort_hash_table' is called we have the number of local dynamic symbol table entries (section and non-section) already counted in `local_dynsymcount', so use it to offset the external area from the beginning. bfd/ * elfxx-mips.c (mips_elf_hash_sort_data): Add `max_local_dynindx'. (mips_elf_sort_hash_table): Handle it. (mips_elf_sort_hash_table_f) <GGA_NONE>: For forced local symbols bump up `max_local_dynindx' rather than `max_non_got_dynindx'.
2017-02-02MIPS/BFD: Use `bfd_size_type' for dynamic symbol table indicesMaciej W. Rozycki2-5/+11
Use the `bfd_size_type' data type for dynamic symbol table indices in the MIPS backend, in line with generic code and removing the need to use a cast. bfd/ * elfxx-mips.c (mips_elf_hash_sort_data): Convert the `min_got_dynindx', `max_unref_got_dynindx' and `max_non_got_dynindx' members to the `bfd_size_type' data type. (mips_elf_sort_hash_table): Adjust accordingly.
2017-02-02MIPS/BFD: Streamline hash table references in `mips_elf_sort_hash_table'Maciej W. Rozycki2-9/+10
Make all hash table references throughout `mips_elf_sort_hash_table' use `htab', simplifying code and improving readability. bfd/ * elfxx-mips.c (mips_elf_sort_hash_table): Use `htab' throughout to access the hash table.
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