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2017-11-15Separate the new FP16 instructions backported from Armv8.4-a to Armv8.2-a ↵Tamar Christina9-6/+31
into a new flag order to distinguish them from the rest of the already existing optional FP16 instructions in Armv8.2-a. The new flag "+fp16fml" is available from Armv8.2-a and implies +fp16 and is mandatory from Armv8.4-a. gas/ * config/tc-arm.c (arm_ext_fp16_fml, fp16fml): New. (do_neon_fmac_maybe_scalar_long): Use arm_ext_fp16_fml. * doc/c-arm.texi (fp16, fp16fml): New. * testsuite/gas/arm/armv8_2-a-fp16.d (fp16): Make fp16fml. * testsuite/gas/arm/armv8_3-a-fp16.d (fp16): Make fp16fml. * testsuite/gas/arm/armv8_2-a-fp16-illegal.d (fp16): Make fp16fml. * testsuite/gas/arm/armv8_2-a-fp16-thumb2.d (fp16): Make fp16fml. include/ * opcode/arm.h: (ARM_EXT2_FP16_FML): New. (ARM_AEXT2_V8_4A): Add ARM_EXT2_FP16_FML.
2017-11-15Remove no-longer applicable maintainer entriesAndrew Cagney2-2/+4
2017-11-15 Andrew Cagney <cagney@gnu.org> * MAINTAINERS: Remove no-longer applicable entries.
2017-11-15Move self to Past Maintainers.Andrew Cagney2-1/+7
2017-11-15 Andrew Cagney <cagney@gnu.org> * MAINTAINERS: Move self to Past Maintainers.
2017-11-15Remove features/nios2-linux.cYao Qi4-76/+7
tdesc_nios2_linux is not used at all. Remove features/nios2-linux.c, and don't generate it anymore. gdb: 2017-11-15 Yao Qi <yao.qi@linaro.org> * features/Makefile (XMLTOC): Remove nios2-linux.xml. * features/nios2-linux.c: Remove. * nios2-linux-tdep.c (_initialize_nios2_linux_tdep): Don't call initialize_tdesc_nios2_linux.
2017-11-15objcopy memory leakAlan Modra2-0/+8
PR 22426 * objcopy.c (copy_main): Free tmpname.
2017-11-15Handle ' and I format flagsAlan Modra2-14/+29
Also a little tidying and error checking. * bfd.c (union _bfd_doprnt_args): Add "Bad". (_bfd_doprnt): Handle more flags. (_bfd_doprnt_scan): Likewise. Tidy setting of args array. (error_handler_internal): Init args type to Bad.
2017-11-15Add support to readelf and objdump for following links to separate debug ↵Nick Clifton34-1495/+2676
information files. Hi Guys, I am applying the rather large patch attached to this email to enhance the readelf and objdump programs so that they now have the ability to follow links to separate debug info files. (As requested by PR 15152). So for example whereas before we had this output: $ readelf -wi main.exe Contents of the .debug_info section: [...] <15> DW_AT_comp_dir : (alt indirect string, offset: 0x30c) [...] With the new option enabled we get: $ readelf -wiK main.exe main.exe: Found separate debug info file: dwz.debug Contents of the .debug_info section (loaded from main.exe): [...] <15> DW_AT_comp_dir : (alt indirect string, offset: 0x30c) /home/nickc/Downloads/dwzm [...] The link following feature also means that we can get two lots of output if the same section exists in both the main file and the separate debug info file: $ readelf -wiK main.exe main.exe: Found separate debug info file: dwz.debug Contents of the .debug_info section (loaded from main.exe): [...] Contents of the .debug_info section (loaded from dwz.debug): [...] The patch also adds the ability to display the contents of debuglink sections: $ readelf -wk main.exe Contents of the .gnu_debugaltlink section: Separate debug info file: dwz.debug Build-ID (0x14 bytes): c4 a8 89 8d 64 cf 70 8a 35 68 21 f2 ed 24 45 3e 18 7a 7a 93 Naturally there are long versions of these options (=follow-links and =links). The documentation has been updated as well, and since both readelf and objdump use the same set of debug display options, I have moved the text into a separate file. There are also a couple of new binutils tests to exercise the new behaviour. There are a couple of missing features in the current patch however, although I do intend to address them in follow up submissions: Firstly the code does not check the build-id inside separate debug info files when it is searching for a file specified by a .gnu_debugaltlink section. It just assumes that if the file is there, then it contains the information being sought. Secondly I have not checked the DWARF-5 version of these link features, so there will probably be code to add there. Thirdly I have only implemented link following for the DW_FORM_GNU_strp_alt format. Other alternate formats (eg DW_FORM_GNU_ref_alt) have yet to be implemented. Lastly, whilst implementing this feature I found it necessary to move some of the global variables used by readelf (eg section_headers) into a structure that can be passed around. I have moved all of the global variables that were necessary to get the patch working, but I need to complete the operation and move the remaining, file-specific variables (eg dynamic_strings). Cheers Nick binutils PR 15152 * dwarf.h (enum dwarf_section_display_enum): Add gnu_debuglink, gnu_debugaltlink and separate_debug_str. (struct dwarf_section): Add filename field. Add prototypes for load_separate_debug_file, close_debug_file and open_debug_file. * dwarf.c (do_debug_links): New. (do_follow_links): New. (separate_debug_file, separate_debug_filename): New. (fetch_alt_indirect_string): New function. Retrieves a string from the debug string table in the separate debug info file. (read_and_display_attr_value): Use it with DW_FORM_GNU_strp_alt. (load_debug_section_with_follow): New function. Like load_debug_section, but if the first attempt fails, then tries again in the separate debug info file. (introduce): New function. (process_debug_info): Use load_debug_section_with_follow and introduce. (load_debug_info): Likewise. (display_debug_lines_raw): Likewise. (display_debug_lines_decoded): Likewise. (display_debug_macinfo): Likewise. (display_debug_macro): Likewise. (display_debug_abbrev): Likewise. (display_debug_loc): Likewise. (display_debug_str): Likewise. (display_debug_aranges): Likewise. (display_debug_addr); Likewise. (display_debug_frames): Likewise. (display_gdb_index): Likewise. (process_cu_tu_index): Likewise. (load_cu_tu_indexes): Likewise. (display_debug_links): New function. Displays the contents of a .gnu_debuglink or .gnu_debugaltlink section. (calc_gnu_debuglink_ctc32):New function. Calculates a CRC32 value. (check_gnu_debuglink): New function. Checks the CRC of a potential separate debug info file. (parse_gnu_debuglink): New function. Reads a CRC value out of a .gnu_debuglink section. (check_gnu_debugaltlink): New function. (parse_gnu_debugaltlink): New function. Reads the build-id value out of a .gnu_debugaltlink section. (load_separate_debug_info): New function. Finds and loads a separate debug info file. (load_separate_debug_file): New function. Attempts to find and follow a link to a separate debug info file. (free_debug_memory): Free the separate debug info file information. (opts_table): Add "follow-links" and "links". (dwarf_select_sections_by_letters): Add "k" and "K". (debug_displays): Reformat. Add .gnu-debuglink and .gnu_debugaltlink. Add an extra entry for .debug_str in a separate debug info file. * doc/binutils.texi: Move description of debug dump features common to both readelf and objdump into... * objdump.c (usage): Add -Wk and -WK. (load_specific_debug_section): Initialise the filename field in the dwarf_section structure. (close_debug_file): New function. (open_debug_file): New function. (dump_dwarf): Load and dump the separate debug info sections. * readelf.c (struct filedata): New structure. Contains various variables that used to be global: (current_file_size, string_table, string_table_length, elf_header) (section_headers, program_headers, dump_sects, num_dump_sects): Move into filedata structure. (cmdline): New global variable. Contains list of sections to dump by number, as specified on the command line. Add filedata parameter to most functions. (load_debug_section): Load the string table if it has not already been retrieved. (close_file): New function. (close_debug_file): New function. (open_file): New function. (open_debug_file): New function. (process_object): Process sections in any separate debug info files. * doc/debug.options.texi: New file. Add description of =links and =follow-links options. * NEWS: Mention the new feature. * elfcomm.c: Have the byte gte functions take a const pointer. * elfcomm.h: Update prototypes. * testsuite/binutils-all/dw5.W: Update expected output. * testsuite/binutils-all/objdump.WL: Update expected output. * testsuite/binutils-all/objdump.exp: Add test of -WK and -Wk. * testsuite/binutils-all/readelf.exp: Add test of -wK and -wk. * testsuite/binutils-all/readelf.k: New file. * testsuite/binutils-all/objdump.Wk: New file. * testsuite/binutils-all/objdump.WK2: New file. * testsuite/binutils-all/linkdebug.s: New file. * testsuite/binutils-all/debuglink.s: New file. gas * testsuite/gas/avr/large-debug-line-table.d: Update expected output. * testsuite/gas/elf/dwarf2-11.d: Likewise. * testsuite/gas/elf/dwarf2-12.d: Likewise. * testsuite/gas/elf/dwarf2-13.d: Likewise. * testsuite/gas/elf/dwarf2-14.d: Likewise. * testsuite/gas/elf/dwarf2-15.d: Likewise. * testsuite/gas/elf/dwarf2-16.d: Likewise. * testsuite/gas/elf/dwarf2-17.d: Likewise. * testsuite/gas/elf/dwarf2-18.d: Likewise. * testsuite/gas/elf/dwarf2-5.d: Likewise. * testsuite/gas/elf/dwarf2-6.d: Likewise. * testsuite/gas/elf/dwarf2-7.d: Likewise. ld * testsuite/ld-avr/gc-section-debugline.d: Update expected output.
2017-11-15Better make rule for arch/ files built for IPAAlan Hayward3-3/+8
gdbserver/ * Makefile.in: Update arch rules. * configure.srv: Explicitly mark arch/ files.
2017-11-15Fix M68HC11_NUM_REGSYao Qi2-1/+6
M68HC11_LAST_HARD_REG is 8, but m68hc11 register number is started from 0, so there are 9 raw registers, but M68HC11_NUM_REGS is 8 by mistake. My following unit test can find this issue (GDB is built with asan) ================================================================= ==15555==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000113150 at pc 0x51393f bp 0x7fffcec36f60 sp 0x7fffcec36f58 WRITE of size 2 at 0x602000113150 thread T0 #0 0x51393e in m68hc11_pseudo_register_read gdb/m68hc11-tdep.c:320 #1 0xc4b620 in gdbarch_pseudo_register_read(gdbarch*, regcache*, int, unsigned char*) gdb/gdbarch.c:1974 #2 0xddad88 in regcache::cooked_read(int, unsigned char*) gdb/regcache.c:710 #3 0xddff2b in cooked_read_test gdb/regcache.c:1850 #4 0xdf8cfb in selftests::gdbarch_selftest::operator()() const gdb/selftest-arch.c:73 gdb: 2017-11-15 Yao Qi <yao.qi@linaro.org> * m68hc11-tdep.c (M68HC11_NUM_REGS): Change it to M68HC11_LAST_HARD_REG + 1.
2017-11-15x86: use correct register namesJan Beulich5-3/+35
VEX.W may be legitimately set (and is then ignored by the CPU) for non-64-bit code. Don't print 64-bit register names in such a case, by utilizing that REX_W would never be set for non-64-bit code, and that it is being set from VEX.W by generic decoding. A test for this is going to be introduced in the next patch of this series.
2017-11-15x86: drop VEXI4_Fixup()Jan Beulich6-50/+73
The low four bits of an immediate being set when the high bits specify a fourth register operand is not a problem: CPUs ignore these bits rather than raising #UD. Take care of incrementing codep in OP_EX_VexW() instead.
2017-11-15x86-64: don't allow use of %axl as accumulatorJan Beulich12-2/+92
Just like %cxl can't be used as shift count register. Otherwise for consistency %cxl would need to gain "ShiftCount" and use of both ought to properly cause REX prefixes to be emitted.
2017-11-15ld einfo positional arg supportAlan Modra2-24/+185
To allow translators to reorder values in translated strings. This should mean that all binutils messages now have support for reordering. Note to translators: Not all % letters take arguments, so for example the following only has two arguments, the two %s strings. "%P%F: output format %s cannot represent section called %s: %E\n" You could reorder this if you liked to: "%P%F: %E: section %2$s cannot be represented in output format %1$s\n" einfo lacks support for flags, field width, precision and length modifier (apart from %ld and %lu) so don't try to use them in translations. Both ld and bfd lack support to use a positional arg twice. These features could be added if needed.. * ldmisc.c (vfinfo): Support up to 9 positional args.
2017-11-14First part of fix for riscv gas lns-common-1 failure.Jim Wilson2-0/+5
gas/ * testsuite/gas/lns/lns.exp (lns-common-1): Add riscv*-*-* to alt list.
2017-11-14Add modified file I missed in last commit.Jim Wilson1-1/+3
2017-11-14Fix riscv ld testsuite failure for compressed1d.Jim Wilson3-0/+28
ld/ * testsuite/ld-elf/compress1-alt.s: New. * testsuite/ld-elf/compressed1d-alt.d: New. * testsuite/ld-elf/compressed1d.d: Add riscv*-*-* to notarget list.
2017-11-15Automatic date update in version.inGDB Administrator1-1/+1
2017-11-14Fix 'xfered>0' assertion in target.c for remote connectionPaul Carroll2-5/+13
We have a customer who is using a Corelis gdb server to connect to gdb. Occasionally, the gdb server will send a 0-byte block of memory for a read. When this happens, gdb gives an assertion from target.c: internal-error: target_xfer_partial: Assertion `*xfered_len > 0' failed. This problem is almost identical to that fixed in https://sourceware.org/ml/gdb-patches/2014-02/msg00636.html In this case, remote.c needs to be modified to return TARGET_XFER_EOF instead of TARGET_XFER_OK or TARGET_XFER_UNAVAILABLE when 0 bytes are transferred. gdb/ChangeLog: PR gdb/22388 * remote.c (remote_write_bytes_aux, remote_read_bytes_1, remote_read_bytes, remote_write_qxfer, remote_xfer_partial): Return TARGET_XFER_EOF if size of returned data is 0.
2017-11-14Fix mem region parsing regression and add testSimon Marchi4-1/+93
In my patch Get rid of VEC (mem_region) a664f67e50eff30198097d51cec0ec4690abb2a1 I introduced a regression, where the length of the memory region is assigned to the "hi" field. It should obviously be computed as "start + length". To my defense, no test had caught this :). As a penance, I wrote one. gdb/ChangeLog: * Makefile.in (SUBDIR_UNITTESTS_SRCS): Add memory-map-selftests.c. (SUBDIR_UNITTESTS_OBS): Add memory-map-selftests.o. * memory-map.c (memory_map_start_memory): Fix computation of hi address. * unittests/memory-map-selftests.c: New file.
2017-11-14PR22431, powerpc64 ld segfault when .plt discardedAlan Modra4-6/+24
The fix for the PR is to not use input_section->output_section->owner to get to the output bfd, but use the output bfd directly since it is available nowadays in struct bfd_link_info. I thought it worth warning when non-empty dynamic sections are discarded too, which meant a tweak to one of the ld tests to avoid the warning. bfd/ PR 22431 * elf64-ppc.c (ppc64_elf_size_dynamic_sections): Warn on discarding non-empty dynamic section. (ppc_build_one_stub): Take elf_gp from output bfd, not output section owner. (ppc_size_one_stub, ppc64_elf_next_toc_section): Likewise. ld/ * testsuite/ld-elf/note-3.t: Don't discard .got.
2017-11-14ld-ifunc non-PIC testsAlan Modra2-3/+8
* testsuite/ld-ifunc/ifunc.exp: Ensure non-PIC tests are really not PIE by default gcc options.
2017-11-14x86: add disassembler support for XOP VPCOM* pseudo-opsJan Beulich6-1202/+1266
Matching up with the assembler, which already supports them.
2017-11-14x86: add support for AVX-512 VPCMP*{B,W} pseudo-opsJan Beulich11-29/+1778
... matching up with VPCMP*{D,Q}.
2017-11-14x86: string insns don't allow displacementsJan Beulich9-75/+100
Remove the misleading indicators from the table.
2017-11-14Inconsistent .eh_frame_hdr on powerpc64Alan Modra2-1/+6
There is code in bfd/elf-eh-frame.c and ld/emultempl/elf32.em that checks for the presence of eh_frame info by testing for a section named .eh_frame sized more than 8 bytes. The size test is to exclude a zero terminator. A similar check in elf64-ppc.c wrongly just tested for non-zero size before creating the linker generated .eh_frame describing plt call and other linkage stubs. The intention was to not generate that info unless there was some user .eh_frame. (No user .eh_frame implies the user doesn't care about exception handling.) Because the test in elf64-ppc.c was wrong, ld generated the stub .eh_frame just on finding a zero .eh_frame terminator in crtend.o, but didn't generate the corresponding .eh_frame_hdr. * elf64-ppc.c (ppc64_elf_size_stubs): Correct test for user .eh_frame info.
2017-11-13gdb.opt/inline-locals.exp: Remove trailing parentheses in test namesSimon Marchi2-18/+23
Test names should not end with parentheses, since the buildbot strips those. gdb/testsuite/ChangeLog: * gdb.opt/inline-locals.exp: Remove trailing parentheses from test names.
2017-11-14Automatic date update in version.inGDB Administrator1-1/+1
2017-11-13ld: Replace exp_dataseg_none with exp_seg_noneH.J. Lu4-3/+10
* emultempl/ppc32elf.em (ppc_before_allocation): Replace exp_dataseg_none with exp_seg_none. * emultempl/ppc64elf.em (prelim_size_sections): Likewise. * emultempl/spuelf.em (spu_before_allocation): Likewise.
2017-11-13Enable hardware single step for m68k in GDBServerAndreas Schwab2-0/+37
* linux-m68k-low.c (m68k_supports_hardware_single_step): New function. (struct linux_target_ops) <supports_hardware_single_step>: Initialize.
2017-11-13gas/arm64: don't emit stack pointer symbol table entriesJan Beulich2-5/+11
Without this change, all of mov z0.b, p0/m, wsp mov z0.b, wsp mov z0.d, p0/m, sp mov z0.d, sp insert stray symbols into the symbol table.
2017-11-13gas/ia64: fix testsuite failuresJan Beulich4-11/+18
Commit dd90581873 ("Place .shstrtab section after .symtab and .strtab, thus restoring monotonically incre... ") adjusted section numbers, but forgot to adjust sh_link references from relocation and group section table entries. Additionally some other (perhaps subsequent) change appears to have added .rel.* and .rela.* sections to their respective groups, which requires some further adjustments to group-2.d. I assume this additional breakage wasn't noticed because the test was already failing at that time. This makes the gas testsuite complete successfully again for me in a cross build on ix86-linux; there continue to be quite a few ld failures.
2017-11-13PE: don't corrupt section flags when linking from ELF objectsJan Beulich5-9/+37
Linking EFI executables from ELF object files can result in corrupted COFF section flags if the section's alignment is too high. Issue a diagnostic in that case, erroring out if this is not a final link, and make sure only in-range values get written to the output image. While doing this also make tic80 use the generic alignment macros instead of custom #ifdef-ary. No testsuite regressions for the range of COFF/PE targets that actually cross-build in the first place on x86-64-linux.
2017-11-13x86: don't default variable shift count insns to 8-bit operand sizeJan Beulich4-1/+20
Just like %dx in I/O instructions isn't suitable to derive operand size information, %cl source operands of shift instructions aren't.
2017-11-13x86: {f,}xsave64 / {f,}xrstor64 / xsaveopt64 should not allow q suffixJan Beulich3-10/+16
Just like is the case for xsave{s,c}64 and xrstors64 already. I wonder though why xsave{s,c} and xrstors don't allow for the q suffix, other than the other insns without the "64" suffix do.
2017-11-13x86/Intel: don't mistake riz/eiz as base registerJan Beulich4-1/+20
Just like we make rsp/esp a base register even if it comes second, make riz/eiz an index register even if it comes first.
2017-11-13x86-64/Intel: issue diagnostic for out of range displacementJan Beulich5-29/+56
... rather than silently dropping it altogether. i386_finalize_displacement() expects baseindex to already be set, so the respective statement needs to be moved up. This then also allows a subsequent conditional to be simplified. For this to not regress on 32-bit addressing, break out address size guessing from i386_index_check(), invoking the new function earlier so that i386_finalize_displacement() has i.prefix[ADDR_PREFIX] available. i386_addressing_mode () in turn needs i.base_reg / i.index_reg set earlier.
2017-11-12ld: Add ldlang_check_relro_region/update lang_find_relro_sections_1H.J. Lu1-23/+32
Extract GNU_RELRO region check into a new funtion and pass a pointer to seg_align_type to lang_find_relro_sections_1 so that they can also be used for text-only LOAD segment. * ldlang.c (lang_size_sections_1): Extract GNU_RELRO region check into ... (ldlang_check_relro_region): New function. (lang_find_relro_sections_1): Add an argument for pointer to seg_align_type and replace expld.dataseg with the pointer. (lang_find_relro_sections): Pass address of expld.dataseg to lang_find_relro_sections_1.
2017-11-12clH.J. Lu1-0/+10
2017-11-12ld: Add lang_size_relro_segmentH.J. Lu2-64/+117
Break lang_size_sections down into separate functions so that they can also be used for text-only LOAD segment. lang_size_relro_segment will call lang_size_relro_segment_1 and lang_size_segment for both GNU_RELRO segment and text-only LOAD segment. * ldlang.c (lang_size_segment): New function. (lang_size_relro_segment_1): Likewise. (lang_size_relro_segment): Likewise. (lang_size_sections): Rewrite to call lang_size_relro_segment.
2017-11-12ld: Add fold_segment_align/fold_segment_relro_end/fold_segment_endH.J. Lu2-89/+114
Extract DATA_SEGMENT_END/DATA_SEGMENT_ALIGN/DATA_SEGMENT_RELRO_END cases for GNU_RELRO segment into separate functions so that they can also be used for text-only LOAD segment. * ldexp.c (fold_unary): Extract the DATA_SEGMENT_END case to ... (fold_segment_end): New function. (fold_binary): Extract the DATA_SEGMENT_ALIGN case to ... (fold_segment_align): New function. (fold_binary): Extract the DATA_SEGMENT_RELRO_END case to ... (fold_segment_relro_end): New function.
2017-11-12ld: Update phase_enum/relro_enum and add seg_align_typeH.J. Lu4-55/+76
Update GNU_RELRO date type so that they can also be used for text-only LOAD segment. * ldexp.h (phase_enum): Rename exp_dataseg_none, exp_dataseg_align_seen, exp_dataseg_relro_seen, exp_dataseg_end_seen, exp_dataseg_relro_adjust, exp_dataseg_adjust and exp_dataseg_done to exp_seg_none, exp_seg_align_seen, exp_seg_relro_seen, exp_seg_end_seen, exp_seg_relro_adjust, exp_seg_adjust and exp_seg_done. (relro_enum): Rename exp_dataseg_relro_none, exp_dataseg_relro_start and exp_dataseg_relro_end to exp_seg_relro_none, exp_seg_relro_start and exp_seg_relro_end. (seg_align_type): New struct type. (ldexp_control): Use seg_align_type. * ldexp.c (fold_unary): Updated. (fold_binary): Likewise. * ldlang.c (strip_excluded_output_sections): Likewise. (lang_size_sections_1): Likewise. (lang_size_sections): Likewise.
2017-11-12ld: Remove PF_X from PT_PHDR segmentH.J. Lu14-12/+41
It was reasonable to mark PT_PHDR segment with PF_X for compatibility with UnixWare and Solaris linkers 20 years ago. But it is inappropriate today when the primary OS of GNU ld is Linux. This patch removes PF_X from PT_PHDR segment as gold does. Tested natively on Linux/x86 as well as crosss-binutils for alpha-linux, ia64-linux, powerpc64-linux, powerpc-linux, s390-linux, s390x-linux, sparc64-linux and sparc-linux. bfd/ PR ld/22423 * elf.c (_bfd_elf_map_sections_to_segments): Remove PF_X from PT_PHDR segment. ld/ PR ld/22423 * testsuite/ld-alpha/tlsbin.rd: Replace "R E " with "R +" for PT_PHDR segment. * testsuite/ld-alpha/tlsbinr.rd: Likewise. * testsuite/ld-ia64/tlsbin.rd: Likewise. * testsuite/ld-powerpc/tlsexe.r: Likewise. * testsuite/ld-powerpc/tlsexe32.r: Likewise. * testsuite/ld-powerpc/tlsexetoc.r: Likewise. * testsuite/ld-s390/tlsbin.rd: Likewise. * testsuite/ld-s390/tlsbin_64.rd: Likewise. * testsuite/ld-sparc/tlssunbin32.rd: Likewise. * testsuite/ld-sparc/tlssunbin64.rd: Likewise. * testsuite/ld-elf/pr22423.d: New test.
2017-11-13Automatic date update in version.inGDB Administrator1-1/+1
2017-11-12ld: Add OTHER_PLT_SECTIONSH.J. Lu6-10/+22
OTHER_PLT_SECTIONS contains sections which should be placed right after .plt section. * emulparams/elf32_x86_64.sh (TINY_READONLY_SECTION): Renamed to ... (OTHER_PLT_SECTIONS): This. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_iamcu.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * scripttempl/elf.sc: Place ${OTHER_PLT_SECTIONS} just after .plt.
2017-11-12weakdef list handlingAlan Modra2-4/+9
The existing code allowed common and indirect symbols to pass an assert, but then read root.u.def which is not valid for anything besides defined and weakdef symbols. The garbage root.u.def.section pointer read can't possibly match pointers stored at the same location for indirect and common symbols, so we would always have left u.weakdef NULL. * elflink.c (elf_link_add_object_symbols): Ignore anything but defined and defweak symbols when setting up weakdefs.
2017-11-12non_got_ref after adjust_dynamic_relocsAlan Modra4-139/+165
This patch was aimed at a FIXME in elf32-hppa.c, the ludicrous and confusing fact that non_got_ref after adjust_dynamic_relocs in that backend means precisely the inverse of what it means before adjust_dynamic_relocs. Before, when non_got_ref is set it means there are dynamic relocs, after, if non_got_ref is clear it means "keep dynamic relocs" and later, "has dynamic relocs". There is a reason why it was done that way.. Some symbols that may have dynamic relocations pre-allocated in check_relocs turn out to not be dynamic, and then are not seen by the backend adjust_dynamic_symbols. We want those symbols to lose their dynamic relocs when non-pic, so it's handy that non_got_ref means the opposite after adjust_dynamic_relocs. But it's really confusing. Most other targets, like ppc32, don't always set non_got_ref on non-GOT references that have dynamic relocations. This is because the primary purpose of non_got_ref before adjust_dynamic_relocs is to flag symbols that might need to be copied to .dynbss, and there are relocation types that may require dyn_relocs but clearly cannot have symbols copied into .dynbss, for example, TLS relocations. Why do we need a flag after adjust_dynamic_relocs to say "keep dynamic relocations"? Well, you can discard most unwanted dyn_relocs in the backend adjust_dynamic_relocs, and for those symbols that aren't seen by the backend adjust_dynamic_relocs, in allocate_dynrelocs based on a flag set by adjust_dynamic relocs, dynamic_adjusted. That doesn't solve all our difficulties though. relocate_section needs to know whether a symbol has dyn_relocs, and many targets transfer dyn_relocs to a weakdef if the symbol has one. The transfer means relocate_section can't test dyn_relocs itself and the weakdef field has been overwritten by that time. So non_got_ref is used to flag "this symbol has dynamic relocations" for relocate_section. Confused still? Well, let's hope the comments I've added help clarify things.. The patch also fixes a case where we might wrongly emit dynamic relocations in an executable for common and undefined symbols. * elf32-hppa.c (elf32_hppa_adjust_dynamic_symbol): Set non_got_ref to keep dyn_relocs, clear to discard. Comment. (allocate_dynrelocs): Always clear non_got_ref when clearing dyn_relocs in non-pic case. Invert non_got_ref test. Also test dynamic_adjusted and ELF_COMMON_DEF_P. Move code deleting dyn_relocs on undefined syms to handle for non-pic too. (elf32_hppa_relocate_section): Simplify test for non-pic dyn relocs. * elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Set non_got_ref to keep dyn_relocs, clear to discard. Comment. (allocate_dynrelocs): Always clear non_got_ref when clearing dyn_relocs in non-pic case. Invert non_got_ref test. Also test dynamic_adjusted and ELF_COMMON_DEF_P. Move code deleting dyn_relocs on undefined syms to handle for non-pic too. (ppc_elf_relocate_section): Simplify test for non-pic dyn relocs. * elf64-ppc.c (ppc64_elf_adjust_dynamic_symbol): Discard dyn_relocs here. Don't bother setting non_got_ref. Comment. (allocate_dynrelocs): Delete special handling of non-pic ELFv2 ifuncs. Move code deleting dyn_relocs on undefined symbols to handle for non-pic too. Don't test non_got_ref. Do test dynamic_adjusted and ELF_COMMON_DEF_P.
2017-11-12Automatic date update in version.inGDB Administrator1-1/+1
2017-11-10Fix riscv binutils xfail for debug_ranges test.Jim Wilson2-1/+6
binutils/ * testsuite/binutils-all/objdump.exp: Expect the debug_ranges test to pass.
2017-11-11Automatic date update in version.inGDB Administrator1-1/+1
2017-11-10Automatic date update in version.inGDB Administrator1-1/+1