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2022-12-14ld, gold: remove support for -z bndplt (MPX prefix)Martin Liska44-1365/+0
bfd/ChangeLog: * elf-linker-x86.h (struct elf_linker_x86_params): Remove bndplt. * elf64-x86-64.c (elf_x86_64_scan_relocs): Ignore R_X86_64_PLT32_BND. (elf_x86_64_relocate_section): Similarly here. (elf_x86_64_link_setup_gnu_properties): Ignore bndplt. * elfxx-x86.c: Likewise. * elfxx-x86.h: Likewise. gold/ChangeLog: * NEWS: Document -z bndplt. * options.h (class General_options): Remove bndplt option. * x86_64.cc (class Output_data_plt_x86_64_bnd): Remove. (Target_x86_64::do_make_data_plt): Do not use Output_data_plt_x86_64_bnd. (Target_x86_64::Scan::get_reference_flags): Likewise. (Target_x86_64::Scan::check_non_pic): Likewise. (Target_x86_64::Scan::local): Likewise. (Target_x86_64::Scan::global): Likewise. ld/ChangeLog: * NEWS: Document -z bndplt. * emulparams/elf_x86_64.sh: Remove bndplt option. * ld.texi: Likewise. * testsuite/ld-x86-64/x86-64.exp: * testsuite/ld-x86-64/bnd-branch-1-now.d: Removed. * testsuite/ld-x86-64/bnd-branch-1.d: Removed. * testsuite/ld-x86-64/bnd-branch-1.s: Removed. * testsuite/ld-x86-64/bnd-ifunc-1-now.d: Removed. * testsuite/ld-x86-64/bnd-ifunc-1.d: Removed. * testsuite/ld-x86-64/bnd-ifunc-1.s: Removed. * testsuite/ld-x86-64/bnd-ifunc-2-now.d: Removed. * testsuite/ld-x86-64/bnd-ifunc-2.d: Removed. * testsuite/ld-x86-64/bnd-ifunc-2.s: Removed. * testsuite/ld-x86-64/bnd-plt-1-now.d: Removed. * testsuite/ld-x86-64/bnd-plt-1.d: Removed. * testsuite/ld-x86-64/mpx.exp: Removed. * testsuite/ld-x86-64/mpx1.out: Removed. * testsuite/ld-x86-64/mpx1a.c: Removed. * testsuite/ld-x86-64/mpx1a.rd: Removed. * testsuite/ld-x86-64/mpx1b.c: Removed. * testsuite/ld-x86-64/mpx1c.c: Removed. * testsuite/ld-x86-64/mpx1c.rd: Removed. * testsuite/ld-x86-64/mpx2.out: Removed. * testsuite/ld-x86-64/mpx2a.c: Removed. * testsuite/ld-x86-64/mpx2a.rd: Removed. * testsuite/ld-x86-64/mpx2b.c: Removed. * testsuite/ld-x86-64/mpx2c.c: Removed. * testsuite/ld-x86-64/mpx2c.rd: Removed. * testsuite/ld-x86-64/mpx3.dd: Removed. * testsuite/ld-x86-64/mpx3a.s: Removed. * testsuite/ld-x86-64/mpx3b.s: Removed. * testsuite/ld-x86-64/mpx3n.dd: Removed. * testsuite/ld-x86-64/mpx4.dd: Removed. * testsuite/ld-x86-64/mpx4a.s: Removed. * testsuite/ld-x86-64/mpx4b.s: Removed. * testsuite/ld-x86-64/mpx4n.dd: Removed. * testsuite/ld-x86-64/pr20800a.S: Removed. * testsuite/ld-x86-64/pr20800b.S: Removed. * testsuite/ld-x86-64/pr21038a-now.d: Removed. * testsuite/ld-x86-64/pr21038a.d: Removed. * testsuite/ld-x86-64/pr21038a.s: Removed. * testsuite/ld-x86-64/pr21038b-now.d: Removed. * testsuite/ld-x86-64/pr21038b.d: Removed. * testsuite/ld-x86-64/pr21038b.s: Removed. * testsuite/ld-x86-64/pr21038c-now.d: Removed. * testsuite/ld-x86-64/pr21038c.d: Removed. * testsuite/ld-x86-64/pr21038c.s: Removed.
2022-12-08x86-64: Remove BND from 64-bit IBT PLTH.J. Lu12-69/+57
Since MPX support has been removed from x86-64 psABI, remove BND from 64-bit IBT PLT by using x32 IBT PLT. bfd/ PR ld/29851 * elf64-x86-64.c (elf_x86_64_get_synthetic_symtab): Also check x32 IBT PLT for 64-bit. (elf_x86_64_link_setup_gnu_properties): Always use x32 IBT PLT. ld/ PR ld/29851 * testsuite/ld-x86-64/ibt-plt-1.d: Updated. * testsuite/ld-x86-64/ibt-plt-2a.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2b.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2c.d: Likewise. * testsuite/ld-x86-64/ibt-plt-2d.d: Likewise. * testsuite/ld-x86-64/ibt-plt-3a.d: Likewise. * testsuite/ld-x86-64/ibt-plt-3b.d: Likewise. * testsuite/ld-x86-64/ibt-plt-3c.d: Likewise. * testsuite/ld-x86-64/ibt-plt-3d.d: Likewise. * testsuite/ld-x86-64/plt-main-ibt-x32.dd: Moved to ... * testsuite/ld-x86-64/plt-main-ibt.dd: This. * testsuite/ld-x86-64/x86-64.exp: Don't use plt-main-ibt-x32.dd.
2022-12-03Revert "ld: Add .note.GNU-stack to ld-plugin/dummy.s"H.J. Lu1-1/+1
This reverts commit 44e59b5a7d8a874f6546a1471b8a003911853aa0. It works only for ELF targets.
2022-12-03ld: Add .note.GNU-stack to ld-plugin/dummy.sH.J. Lu1-1/+1
* testsuite/ld-plugin/dummy.s: Add .note.GNU-stack.
2022-11-30section-select: Fix exclude-file-3Michael Matz1-1/+3
this testcase wasn't correctly testing everything, it passed, even though sections from an excluded file were included. Fixing this reveals a problem in the new section selector. This fixes that as well.
2022-11-30Correct ordering problem in comm-data.expAlan Modra1-20/+19
* testsuite/ld-elf/comm-data.exp: Build libcomm-data.so before attempting to read it to set ELF64.
2022-11-28Only use wild_sort_fastMichael Matz4-0/+36
there's no reason why the tree-based variant can't always be used when sorting is required, it merely needs to also support filename sorting and have a fast path for insertion at end (aka rightmost tree leaf). The filename sorting isn't tested anywhere and the only scripttempl that uses it is avr (for 'SORT(*)(.ctors)'), and I believe even there it was a mistake. Either way, this adds a testcase for filename sorting as well. Then the non-BST based sorting can be simplified to only support the fast case of no sorting required at all (at the same time renaming the two variants to _sort and _nosort).
2022-11-28Use bfd_rename_section in msp430.emAlan Modra1-0/+6
* emultempl/msp430.em (add_region_prefix <REGION_EITHER>): Use bfd_rename_section. * testsuite/ld-msp430-elf/msp430-tiny-rom.ld: Handle varian data and bss input sections.
2022-11-23ld: Add section contributions substream to PDB filesMark Harmstone4-2/+51
2022-11-22x86: Don't define _TLS_MODULE_BASE_ for ld -rH.J. Lu3-0/+19
bfd/ PR ld/29820 * elfxx-x86.c (_bfd_x86_elf_always_size_sections): Don't define _TLS_MODULE_BASE_ for ld -r. ld/ PR ld/29820 * testsuite/ld-x86-64/pr29820.d: New file. * testsuite/ld-x86-64/pr29820.s: Likewise. * testsuite/ld-x86-64/x86-64.ex: Run pr29820.
2022-11-17ld: Always call elf_backend_output_arch_local_symsH.J. Lu2-0/+36
Always call elf_backend_output_arch_local_syms since only the backend knows if elf_backend_output_arch_local_syms is needed when all symbols are striped. elf_backend_output_arch_local_syms is defined only for x86, ARM and AARCH64. On x86, elf_backend_output_arch_local_syms must be called to handle local IFUNC symbols even if all symbols are striped. Update ARM and AARCH64 to skip elf_backend_output_arch_local_syms when symbols aren't needed. bfd/ PR ld/29797 * elf32-arm.c (elf32_arm_output_arch_local_syms): Skip if symbols aren't needed. * elfnn-aarch64.c (elfNN_aarch64_output_arch_local_syms): Likewise. * elflink.c (bfd_elf_final_link): Always call elf_backend_output_arch_local_syms if available. ld/ PR ld/29797 * testsuite/ld-elf/linux-x86.exp: Run PR ld/29797 test. * testsuite/ld-elf/pr29797.c: New file.
2022-11-15bfd: linker: merge .sframe sectionsIndu Bhagat17-4/+324
The linker merges all the input .sframe sections. When merging, the linker verifies that all the input .sframe sections have the same abi/arch. The linker uses libsframe library to perform key actions on the .sframe sections - decode, read, and create output data. This implies buildsystem changes to make and install libsframe before libbfd. The linker places the output .sframe section in a new segment of its own: PT_GNU_SFRAME. A new segment is not added, however, if the generated .sframe section is empty. When a section is discarded from the final link, the corresponding entries in the .sframe section for those functions are also deleted. The linker sorts the SFrame FDEs on start address by default and sets the SFRAME_F_FDE_SORTED flag in the .sframe section. This patch also adds support for generation of SFrame unwind information for the .plt* sections on x86_64. SFrame unwind info is generated for IBT enabled PLT, lazy/non-lazy PLT. The existing linker option --no-ld-generated-unwind-info has been adapted to include the control of whether .sframe unwind information will be generated for the linker generated sections like PLT. Changes to the linker script have been made as necessary. ChangeLog: * Makefile.def: Add install dependency on libsframe for libbfd. * Makefile.in: Regenerated. * bfd/Makefile.am: Add elf-sframe.c * bfd/Makefile.in: Regenerated. * bfd/bfd-in2.h (SEC_INFO_TYPE_SFRAME): Regenerated. * bfd/configure: Regenerate. * bfd/configure.ac: Add elf-sframe.lo. * bfd/elf-bfd.h (struct sframe_func_bfdinfo): New struct. (struct sframe_dec_info): Likewise. (struct sframe_enc_info): Likewise. (struct elf_link_hash_table): New member for encoded .sframe object. (struct output_elf_obj_tdata): New member. (elf_sframe): New access macro. (_bfd_elf_set_section_sframe): New declaration. * bfd/elf.c (get_segment_type): Handle new segment PT_GNU_SFRAME. (bfd_section_from_phdr): Likewise. (get_program_header_size): Likewise. (_bfd_elf_map_sections_to_segments): Likewise. * bfd/elf64-x86-64.c (elf_x86_64_link_setup_gnu_properties): Add contents to the .sframe sections or .plt* entries. * bfd/elflink.c (elf_section_ignore_discarded_relocs): Handle SEC_INFO_TYPE_SFRAME. (_bfd_elf_default_action_discarded): Handle .sframe section. (elf_link_input_bfd): Merge .sframe section. (bfd_elf_final_link): Write the output .sframe section. (bfd_elf_discard_info): Handle discarding .sframe section. * bfd/elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Create .sframe section for .plt and .plt.sec. (_bfd_x86_elf_finish_dynamic_sections): Handle .sframe from .plt* sections. * bfd/elfxx-x86.h (PLT_SFRAME_FDE_START_OFFSET): New definition. (SFRAME_PLT0_MAX_NUM_FRES): Likewise. (SFRAME_PLTN_MAX_NUM_FRES): Likewise. (struct elf_x86_sframe_plt): New structure. (struct elf_x86_link_hash_table): New member. (struct elf_x86_init_table): New members for .sframe creation. * bfd/section.c: Add new definition SEC_INFO_TYPE_SFRAME. * binutils/readelf.c (get_segment_type): Handle new segment PT_GNU_SFRAME. * ld/ld.texi: Update documentation for --no-ld-generated-unwind-info. * ld/scripttempl/elf.sc: Support .sframe sections. * ld/Makefile.am (TESTSFRAMELIB): Use it. (check-DEJAGNU): Likewise. * ld/Makefile.in: Regenerated. * ld/configure.ac (TESTSFRAMELIB): Set to the .so or .a like TESTBFDLIB. * ld/configure: Regenerated. * bfd/elf-sframe.c: New file. include/ChangeLog: * elf/common.h (PT_GNU_SFRAME): New definition. * elf/internal.h (struct elf_segment_map): Handle new segment type PT_GNU_SFRAME. ld/testsuite/ChangeLog: * ld/testsuite/ld-bootstrap/bootstrap.exp: Add SFRAMELIB. * ld/testsuite/ld-aarch64/aarch64-elf.exp: Add new test sframe-simple-1. * ld/testsuite/ld-aarch64/sframe-bar.s: New file. * ld/testsuite/ld-aarch64/sframe-foo.s: Likewise. * ld/testsuite/ld-aarch64/sframe-simple-1.d: Likewise. * ld/testsuite/ld-sframe/sframe-empty.d: New test. * ld/testsuite/ld-sframe/sframe-empty.s: New file. * ld/testsuite/ld-sframe/sframe.exp: New testsuite. * ld/testsuite/ld-x86-64/sframe-bar.s: New file. * ld/testsuite/ld-x86-64/sframe-foo.s: Likewise. * ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise. * ld/testsuite/ld-x86-64/sframe-plt-1.d: Likewise. * ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise. * ld/testsuite/ld-x86-64/x86-64.exp: Add new tests - sframe-simple-1, sframe-plt-1. * ld/testsuite/lib/ld-lib.exp: Add new proc to check if assembler supports SFrame section. * ld/testsuite/ld-sframe/discard.d: New file. * ld/testsuite/ld-sframe/discard.ld: Likewise. * ld/testsuite/ld-sframe/discard.s: Likewise.
2022-11-14pru: bfd: Correct default to no execstackDimitar Dimitrov1-0/+1
Data and instruction memories are strictly separated, so it is not possible to execute instructions from the stack memory on PRU. I don't see any difference in testsuite results with or without this change. bfd/ChangeLog: * elf32-pru.c (elf_backend_default_execstack): Define as 0. ld/ChangeLog: * testsuite/ld-elf/elf.exp (target_defaults_to_execstack): Return 0 for pru. Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
2022-11-10ld/testsuite: skip ld-size when -shared is not supportedClément Chigot1-0/+6
ld/ChangeLog: * testsuite/ld-size/size.exp: Skip when -shared is not supported.
2022-11-10ld: Add module information substream to PDB filesMark Harmstone3-40/+184
2022-11-07ld/testsuite: skip tests related to -shared when disabledClément Chigot3-0/+15
Call the helper function "check_shared_lib_support" to ensure -shared is enabled before launching ld-shared, ld-elfweak and ld-elfvers. This allows to catch custom targets explicitly disabling it. ld/ChangeLog: * testsuite/ld-elfvers/vers.exp: Call check_shared_lib_support. * testsuite/ld-elfweak/elfweak.exp: Likewise. * testsuite/ld-shared/shared.exp: Likewise.
2022-11-02arm: PR 29739 Fix typo where ';' should not have been replaced with '@'Christophe Lyon3-3/+3
';' does not always indicate the start of a comment, and commit 8cb6e17571f3fb66ccd4fa19f881602542cd06fc incorrectly replaced 3 instances of ';' with '@' in expected diagnostics, leading to tests failures. This patch restores the original ';' as needed in these testcases. Fixes bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29739
2022-11-01opcodes/arm: use '@' consistently for the comment characterAndrew Burgess115-1209/+1209
Looking at the ARM disassembler output, every comment seems to start with a ';' character, so I assumed this was the correct character to start an assembler comment. I then spotted a couple of places where there was no ';', but instead, just a '@' character. I thought that this was a case of a missing ';', and proposed a patch to add the missing ';' characters. Turns out I was wrong, '@' is actually the ARM assembler comment character, while ';' is the statement separator. Thus this: nop ;@ comment is two statements, the first is the 'nop' instruction, while the second contains no instructions, just the '@ comment' comment text. This: nop @ comment is a single 'nop' instruction followed by a comment. And finally, this: nop ; comment is two statements, the first contains the 'nop' instruction, while the second contains the instruction 'comment', which obviously isn't actually an instruction at all. Why this matters is that, in the next commit, I would like to add libopcodes syntax styling support for ARM. The question then is how should the disassembler style the three cases above? As '@' is the actual comment start character then clearly the '@' and anything after it can be styled as a comment. But what about ';' in the second example? Style as text? Style as a comment? And the third example is even harder, what about the 'comment' text? Style as an instruction mnemonic? Style as text? Style as a comment? I think the only sensible answer is to move the disassembler to use '@' consistently as its comment character, and remove all the uses of ';'. Then, in the next commit, it's obvious what to do. There's obviously a *lot* of tests that get updated by this commit, the only actual code changes are in opcodes/arm-dis.c.
2022-10-31ld: Add publics stream to PDB filesMark Harmstone4-2/+171
2022-10-31ld: Add section header stream to PDB filesMark Harmstone1-0/+123
2022-10-27tests: use canonical option nameMartin Liska1-1/+1
ld/ChangeLog: * testsuite/ld-size/size.exp: Use canonical option name.
2022-10-27Re: ld/testsuite: adjust ld-arm to run shared tests only when supportedAlan Modra1-2/+2
commit 67527cffcd enabled previously disabled tests unresolved-1-dyn, thumb-plt and thumb-plt-got for nacl. The first fails due to trying to link against mixed-lib.so which isn't compiled for nacl. The last two fail with objdump: tmpdir/dump(.rel.plt): relocation 0 has invalid symbol index 14885104 and readelf: Error: bad symbol index: 00e320f0 in reloc Relocation section '.rel.plt' at offset 0x128 contains 1 entry: Offset Info Type Sym. Value Symbol's Name e320f000 e320f000 R_ARM_NONE * testsuite/ld-arm/arm-elf.exp: Disable unresolved-1-dyn, thumb-plt and thumb-plt-got for nacl.
2022-10-24ld/testsuite: adjust ld-arm to run shared tests only when supportedClément Chigot1-159/+166
If a custom arm-elf target is disabling the shared support, a lot of failures are reported by the testsuite. Moreover, some tests try to access libraries which have been explicitly skipped earlier (eg mixed-lib.so). ld/ChangeLog: * testsuite/ld-arm/arm-elf.exp: Separate tests needing shared lib support.
2022-10-24ld/testsuite: skip ld-elf/exclude when -shared is not supportedClément Chigot1-2/+2
ld/ChangeLog: * testsuite/ld-elf/exclude.exp: Call check_shared_lib_support. to skip for all targets without shared lib support.
2022-10-20ld: Add minimal pdb generationMark Harmstone1-0/+267
2022-10-20ld: Add --pdb optionMark Harmstone2-0/+58
Second patch incorporates fixes for endian and UB issues in calc_hash, as per https://sourceware.org/pipermail/binutils/2022-October/123514.html.
2022-10-19aarch64-pe support for LD, GAS and BFDJedidiah Thompson3-0/+32
Allows aarch64-pe to be targeted natively, not having to use objcopy to convert it from ELF to PE. Based on initial work by Jedidiah Thompson Co-authored-by: Jedidiah Thompson <wej22007@outlook.com> Co-authored-by: Zac Walker <zac.walker@linaro.org>
2022-10-19IBM zSystems: Issue error for *DBL relocs on misaligned symbolsAndreas Krebbel2-0/+17
Relocs like PC32DBL require a right shift of the symbol value. There is no situation where dropping symbol value bits with the right shift is a good thing. Hence we now issue an error to detect such problems.
2022-10-17ld/testsuite: consistently add board_ldflags when linking with GCCClément Chigot2-5/+25
Currently, the functions checking if the compiler is available or if a feature is available add both board_cflags and board_ldflags. However, functions running the tests only retrieve board_cflags. This can lead to unexpected errors when mandaratory flags are defined in board_ldflags and not board_cflags. ld/ChangeLog: * testsuite/ld-unique/unique.exp: Add board_ldflags when linking with GCC. * testsuite/lib/ld-lib.exp: Likewise.
2022-09-30RISC-V: re-arrange opcode table for consistent alias handlingJan Beulich6-9/+9
For disassembly to pick up aliases in favor of underlying insns (helping readability in the common case), the aliases need to come ahead of the "base" insns. Slightly more code movement is needed because of insns with the same name needing to stay next to each other. Note that the "rorw" alias entry also has the missing INSN_ALIAS added here. Clone a few testcases to exercise -Mno-aliases some more, better covering the differences between the default and that disassembly mode.
2022-09-28ld/testsuite: force warnings when dealing with execstack testsClément Chigot1-10/+3
Binutils can be configured to avoid printing the execstack or RWD segment warnings. In this case, the first test of PR ld/29072 will fail. Fix that by always manually forcing the warnings for it. ld/ChangeLog: * testsuite/ld-elf/elf.exp (PR ld/29072): Force execstack and RWD segment warnings.
2022-09-28Re: egrep in binutilsAlan Modra1-3/+1
Multi-line patterns for grep are not supported on some old versions of grep. binutils/ * embedspu.sh: Replace multi-line grep with sed. ld/ * testsuite/ld-elfvers/vers.exp: Replace multi-line grep with sed.
2022-09-28egrep in binutilsAlan Modra1-1/+3
Apparently some distros have a nagging egrep that helpfully tells you egrep is deprecated and to use "grep -E". The nag message causes a ld testsuite failure. What's more the advice isn't that good. The "-E" flag may not be available with older versions of grep. This patch fixes bare invocation of egrep within binutils, replacing it with the autoconf $EGREP or with grep. config/ * lib-ld.m4 (AC_LIB_PROG_LD_GNU): Require AC_PROG_EGREP and invoke $EGREP. (AC_LIB_PROG_LD): Likewise. binutils/ * configure: Regenerate. * embedspu.sh: Replace egrep with grep. gold/ * testsuite/Makefile.am (flagstest_compress_debug_sections.check): Replace egrep with grep. * testsuite/Makefile.in: Regenerate. * testsuite/bnd_ifunc_1.sh: Replace egrep with $EGREP. * testsuite/bnd_ifunc_2.sh: Likewise. * testsuite/bnd_plt_1.sh: Likewise. * testsuite/discard_locals_test.sh: Likewise. * testsuite/gnu_property_test.sh: Likewise. * testsuite/no_version_test.sh: Likewise. * testsuite/pr18689.sh: Likewise. * testsuite/pr26936.sh: Likewise. * testsuite/retain.sh: Likewise. * testsuite/split_i386.sh: Likewise. * testsuite/split_s390.sh: Likewise. * testsuite/split_x32.sh: Likewise. * testsuite/split_x86_64.sh: Likewise. * testsuite/ver_test_pr16504.sh: Likewise. intl/ * configure: Regenerate. ld/ * testsuite/ld-elfvers/vers.exp (test_ar): Replace egrep with grep.
2022-09-26binutils, gdb: support zstd compressed debug sectionsFangrui Song2-0/+20
PR29397 PR29563: Add new configure option --with-zstd which defaults to auto. If pkgconfig/libzstd.pc is found, define HAVE_ZSTD and support zstd compressed debug sections for most tools. * bfd: for addr2line, objdump --dwarf, gdb, etc * gas: support --compress-debug-sections=zstd * ld: support ELFCOMPRESS_ZSTD input and --compress-debug-sections=zstd * objcopy: support ELFCOMPRESS_ZSTD input for --decompress-debug-sections and --compress-debug-sections=zstd * gdb: support ELFCOMPRESS_ZSTD input. The bfd change references zstd symbols, so gdb has to link against -lzstd in this patch. If zstd is not supported, ELFCOMPRESS_ZSTD input triggers an error. We can avoid HAVE_ZSTD if binutils-gdb imports zstd/ like zlib/, but this is too heavyweight, so don't do it for now. ``` % ld/ld-new a.o ld/ld-new: a.o: section .debug_abbrev is compressed with zstd, but BFD is not built with zstd support ... % ld/ld-new a.o --compress-debug-sections=zstd ld/ld-new: --compress-debug-sections=zstd: ld is not built with zstd support % binutils/objcopy --compress-debug-sections=zstd a.o b.o binutils/objcopy: --compress-debug-sections=zstd: binutils is not built with zstd support % binutils/objcopy b.o --decompress-debug-sections binutils/objcopy: zstd.o: section .debug_abbrev is compressed with zstd, but BFD is not built with zstd support ... ```
2022-09-22ld/testsuite: allow to force another directory for gcc linkerClément Chigot1-8/+15
Add a new variable "ld_testsuite_tmpdir" to enable manual configuration of the -B flag added to gcc calls. This flag ensure that gcc is invoking the linker and the assembler we want to test. When launching the testsuite outside of the build tree, the links made by the testsuite in tmpdir/ld will point to nothing. Thus, even with the PATH correctly setup towards the linker directory, gcc might end up falling back to its default linker. Hence this variable to ensure that gcc, whatever happens, is using the linker we want. ld/ChangeLog: * testsuite/config/default.exp: Allow to change -B flag with ld_testsuite_bindir variable.
2022-09-22ld/testsuite: skip bootstrap.exp when OFILES are missingClément Chigot1-0/+6
OFILES are normally provided through an environment variable set by Makefiles. However, when launching the testsuite directly through runtest outside the build tree, it can be hard to retrieve them. Thus, they can be missing. Instead of letting tcl raise an error when trying to access this OFILES variable, skip bootstrap.exp if it doesn't exist. ld/ChangeLog: * testsuite/ld-bootstrap/bootstrap.exp: Skip if OFILES is missing
2022-09-21RISC-V: Always generate R_RISCV_CALL_PLT reloc for call in assembler.Nelson Chu1-28/+28
Since we have the same behaviors of CALL and CALL_PLT relocs in linker for now, https://github.com/bminor/binutils-gdb/commit/3b1450b38c644f99aa2e211747b428b9f8d15cca And the psabi already deprecate the CALL reloc, https://github.com/riscv-non-isa/riscv-elf-psabi-doc/commit/a0dced85018d7a0ec17023c9389cbd70b1dbc1b0 Therefore, we should always generate R_RISCV_CALL_PLT reloc for call, even if it has @plt postfix. I believe LLVM (https://reviews.llvm.org/D132530) already support this, so GNU as should do the same thing. gas/ * config/tc-riscv.c (riscv_ip): Always generate CALL_PLT reloc for call, even if it has @plt postfix. * testsuite/gas/riscv/no-relax-reloc.d: Updated CALL to CALL_PLT. * testsuite/gas/riscv/relax-reloc.d: Likewise. ld/ * testsuite/ld-riscv-elf/variant_cc-r.d: Updated CALL to CALL_PLT.
2022-09-20LoongArch: Fix R_LARCH_IRELATIVE insertion after elf_link_sort_relocsXi Ruoyao3-0/+39
loongarch_elf_finish_dynamic_symbol is called after elf_link_sort_relocs if -z combreloc. elf_link_sort_relocs redistributes the contents of .rela.* sections those would be merged into .rela.dyn, so the slot for R_LARCH_IRELATIVE may be out of relplt->contents now. To make things worse, the boundary check dyn < dyn + relplt->size / sizeof (*dyn) is obviously wrong ("x + 10 < x"? :), causing the issue undetected during the linking process and the resulted executable suddenly crashes at runtime. The issue was found during an attempt to add static-pie support to the toolchain. Fix it by iterating through the inputs of .rela.dyn to find the slot.
2022-09-14Modify ld-ctf test files to suit ARMAlan Modra12-24/+24
The "@" char starts a comment on ARM. * testsuite/ld-ctf/diag-ctf-version-0.s: Replace @progbits with %progbits. * testsuite/ld-ctf/diag-ctf-version-2-unsupported-feature.s: Likewise. * testsuite/ld-ctf/diag-ctf-version-f.s: Likewise. * testsuite/ld-ctf/diag-cttname-invalid.s: Likewise. * testsuite/ld-ctf/diag-cttname-null.s: Likewise. * testsuite/ld-ctf/diag-cuname.s: Likewise. * testsuite/ld-ctf/diag-decompression-failure.s: Likewise. * testsuite/ld-ctf/diag-parlabel.s: Likewise. * testsuite/ld-ctf/diag-parname.s: Likewise. * testsuite/ld-ctf/diag-strlen-invalid.s: Likewise. * testsuite/ld-ctf/diag-unsupported-flag.s: Likewise. * testsuite/ld-ctf/diag-wrong-magic-number.s: Likewise.
2022-09-12RISC-V: PR28509, the default visibility symbol cannot be referenced by ↵Nelson Chu12-29/+83
R_RISCV_JAL. When generating the shared object, the default visibility symbols may bind externally, which means they will be exported to the dynamic symbol table, and are preemptible by default. These symbols cannot be referenced by the non-pic R_RISCV_JAL and R_RISCV_RVC_JUMP. However, consider that linker may relax the R_RISCV_CALL relocations to R_RISCV_JAL or R_RISCV_RVC_JUMP, if these relocations are relocated to the plt entries, then we won't report error for them. Perhaps we also need the similar checks for the R_RISCV_BRANCH and R_RISCV_RVC_BRANCH relocations. After applying this patch, and revert the following glibc patch, riscv: Fix incorrect jal with HIDDEN_JUMPTARGET https://sourceware.org/git/?p=glibc.git;a=commit;h=68389203832ab39dd0dbaabbc4059e7fff51c29b I get the expected errors as follows, ld: relocation R_RISCV_RVC_JUMP against `__sigsetjmp' which may bind externally can not be used when making a shared object; recompile with -fPIC ld: relocation R_RISCV_JAL against `exit' which may bind externally can not be used when making a shared object; recompile with -fPIC Besides, we also have similar changes for libgcc, RISC-V: jal cannot refer to a default visibility symbol for shared object https://github.com/gcc-mirror/gcc/commit/45116f342057b7facecd3d05c2091ce3a77eda59 bfd/ pr 28509 * elfnn-riscv.c (riscv_elf_relocate_section): Report errors when makeing a shard object, and the referenced symbols of R_RISCV_JAL relocations are default visibility. Besides, we should handle most of the cases here, so don't need the unresolvable check later for R_RISCV_JAL and R_RISCV_RVC_JUMP. ld/ pr 28509 * testsuite/ld-riscv-elf/ld-riscv-elf.exp: Updated. * testsuite/ld-riscv-elf/lib-nopic-01a.s: Removed. * testsuite/ld-riscv-elf/lib-nopic-01b.d: Likewise. * testsuite/ld-riscv-elf/lib-nopic-01b.s: Likewise. * testsuite/ld-riscv-elf/shared-lib-nopic-01.d: New testcase. * testsuite/ld-riscv-elf/shared-lib-nopic-01.s: Likewise. * testsuite/ld-riscv-elf/shared-lib-nopic-02.d: Likewise. * testsuite/ld-riscv-elf/shared-lib-nopic-02.s: Likewise. * testsuite/ld-riscv-elf/shared-lib-nopic-03.d: Likewise. * testsuite/ld-riscv-elf/shared-lib-nopic-03.s: Likewise. * testsuite/ld-riscv-elf/shared-lib-nopic-04.d: Likewise. * testsuite/ld-riscv-elf/shared-lib-nopic-04.s: Likewise.
2022-09-02xtensa: bfd: fix TLS relocations generated for PIEMax Filippov5-0/+220
When generating TLS dynamic relocations the existing xtensa BFD code treats linking to a PIE exactly as linking to a shared object, resulting in generation of wrong relocations for TLS entries. Fix that and add tests. bfd/ * elf32-xtensa.c (elf_xtensa_check_relocs): Use bfd_link_dll instead of bfd_link_pic. Add elf_xtensa_dynamic_symbol_p test when generating GOT entries. (elf_xtensa_relocate_section): Use bfd_link_dll instead of bfd_link_pic. ld/ * testsuite/ld-xtensa/tlspie.dd: New file. * testsuite/ld-xtensa/tlspie.rd: New file. * testsuite/ld-xtensa/tlspie.sd: New file. * testsuite/ld-xtensa/tlspie.td: New file. * testsuite/ld-xtensa/xtensa-linux.exp (TLS PIE transitions): New test.
2022-09-02xtensa: adjust expected output in ld TLS testsMax Filippov4-63/+63
objdump output for l32r opcode was changed in commit b3ea76397a07 ("opcodes: xtensa: display loaded literal value"), but xtensa linker TLS relaxation tests weren't adjusted accordingly. readelf output was changed in commit 23356397449a ("Adjust readelf's output so that section symbols without a name as shown with their section name."), but xtensa linker TLS relaxation tests weren't adjusted accordingly. Fix expected output changes in xtensa ld TLS relaxation tests. ld/ * testsuite/ld-xtensa/tlsbin.dd: Adjust expected output for l32r opcodes. * testsuite/ld-xtensa/tlsbin.rd: Adjust expected output to allow for named section symbols. * testsuite/ld-xtensa/tlspic.dd: Adjust expected output for l32r opcodes. * testsuite/ld-xtensa/tlspic.rd: Adjust expected output to allow for named section symbols.
2022-08-30BFD library: Use entry 0 in directory and filename tables of DWARF-5 debug info.Nick Clifton1-1/+1
PR 29529 * dwarf2.c (struct line_info_table): Add new field: use_dir_and_file_0. (concat_filename): Use new field to help select the correct table slot. (read_formatted_entries): Do not skip entry 0. (decode_line_info): Set new field depending upon the version of DWARF being parsed. Initialise filename based upon the setting of the new field.
2022-08-30RISC-V: Add 'Zmmul' extension in assembler.Tsukasa OI12-12/+12
Three-part patch set from Tsukasa OI to support zmmul in assembler. The 'Zmmul' is a RISC-V extension consisting of only multiply instructions (a subset of 'M' which has multiply and divide instructions). bfd/ * elfxx-riscv.c (riscv_implicit_subsets): Add 'Zmmul' implied by 'M'. (riscv_supported_std_z_ext): Add 'Zmmul' extension. (riscv_multi_subset_supports): Add handling for new instruction class. gas/ * testsuite/gas/riscv/attribute-09.d: Updated implicit 'Zmmul' by 'M'. * testsuite/gas/riscv/option-arch-02.d: Likewise. * testsuite/gas/riscv/m-ext.s: New test. * testsuite/gas/riscv/m-ext-32.d: New test (RV32). * testsuite/gas/riscv/m-ext-64.d: New test (RV64). * testsuite/gas/riscv/zmmul-32.d: New expected output. * testsuite/gas/riscv/zmmul-64.d: Likewise. * testsuite/gas/riscv/m-ext-fail-xlen-32.d: New test (failure by using RV64-only instructions in RV32). * testsuite/gas/riscv/m-ext-fail-xlen-32.l: Likewise. * testsuite/gas/riscv/m-ext-fail-zmmul-32.d: New failure test (RV32 + Zmmul but with no M). * testsuite/gas/riscv/m-ext-fail-zmmul-32.l: Likewise. * testsuite/gas/riscv/m-ext-fail-zmmul-64.d: New failure test (RV64 + Zmmul but with no M). * testsuite/gas/riscv/m-ext-fail-zmmul-64.l: Likewise. * testsuite/gas/riscv/m-ext-fail-noarch-64.d: New failure test (no Zmmul or M). * testsuite/gas/riscv/m-ext-fail-noarch-64.l: Likewise. include/ * opcode/riscv.h (enum riscv_insn_class): Added INSN_CLASS_ZMMUL. ld/ * testsuite/ld-riscv-elf/attr-merge-arch-01.d: We don't care zmmul in these testcases, so just replaced m by a. * testsuite/ld-riscv-elf/attr-merge-arch-01a.s: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-01b.s: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-02.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-02a.s: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-03.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-03a.s: Likewise. * testsuite/ld-riscv-elf/attr-merge-user-ext-01.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-user-ext-rv32i2p1_a2p0.s: Renamed. * testsuite/ld-riscv-elf/attr-merge-user-ext-rv32i2p1_a2p1.s: Renamed. opcodes/ * riscv-opc.c (riscv_opcodes): Updated multiply instructions to zmmul.
2022-08-25PR10372, SH: ld test with sim/sh/run fails alwaysAlan Modra1-3/+7
PR 10372 * testsuite/ld-sh/start.s: Add _start sym. Use trapa 34. Create an alloc .stack section.
2022-08-25Re: LoongArch: ld: Fix bug not generate plt when link a dsoAlan Modra1-12/+15
Fixes loongarch32-elf +FAIL: medium jirl plt * testsuite/ld-loongarch-elf/cmodel.exp: Don't run test when no shared library support.
2022-08-24LoongArch: ld: Fix bug not generate plt when link a dsoliuzhensong3-0/+43
Fix the bug that can not generate func@plt when linking a undefined function with cmodel=medium. Add testcase. bfd/ * elfnn-loongarch.c ld/testsuite/ld-loongarch-elf/ * cmodel-libjirl.dd * cmodel.exp * libjirl.s
2022-08-21Re: Missing linking test case for pe dll using a def fileAlan Modra1-11/+11
Fixes this when cross-compiling from x86_64-linux x86_64-w64-mingw32 +FAIL: compiling shared lib fastcall/stdcall * testsuite/ld-pe/pe-run2-def.exp (test_direct2_link_dll_def): Use CC_FOR_TARGET and CFLAGS_FOR_TARGET rather than CC and CFLAGS.
2022-08-18Missing linking test case for pe dll using a def file.Ralf Habacker1-0/+159
PR 28362 * testsuite/ld-pe/pe-run2-def.exp: New file.
2022-08-13readelf: print 0x0 as 0, and remove trailing spacesAlan Modra1-9/+9
This changes readelf output a little, removing the 0x prefix on hex output when the value is 0, except in cases where a fixed field width is shown. %#010x is not a good replacement for 0x%08x.
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