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2020-10-22ld: Pass -fno-lto to non LTO testsH.J. Lu12-27/+64
* testsuite/config/default.exp (NOLTO_CFLAGS): New. * ld/testsuite/ld-elfcomm/elfcomm.exp: Add $NOLTO_CFLAGS to CC. * testsuite/ld-elfvers/vers.exp: Likewise. * testsuite/ld-elfvsb/elfvsb.exp: Likewise. * testsuite/ld-gc/gc.exp: Likewise. * testsuite/ld-plugin/plugin.exp: Likewise. * testsuite/ld-scripts/crossref.exp: Likewise. * testsuite/ld-selective/selective.exp: Likewise. * testsuite/ld-undefined/undefined.exp: Likewise. * testsuite/ld-srec/srec.exp: Add $NOLTO_CFLAGS to CC. Override CXXFLAGS. * testsuite/lib/ld-lib.exp (run_ld_link_tests): Prepend -fno-lto to cflags.
2020-10-19Provide dummy libraries for alpha-vmsAlan Modra10-276/+98
alpha-dec-vms always loads a number of libraries, -limagelib, -lstarlet, and -lsys$public_vectors. When running the ld testsuite without a full cross-build environment, those libraries are missing and cause fails. This patch provides dummies, and tidies default.exp a little. * testsuite/config/default.exp: Provide dummy libraries for alpha-dec-vms. (compiler_supports): New proc. Use it for compiler tests. * testsuite/lib/ld-lib.exp (default_ld_assemble): Don't die if subdir not set. (run_ld_link_tests): Pass LDFLAGS to ld. * testsuite/ld-checks/checks.exp (section_check): Likewise. * testsuite/ld-scripts/assert.exp: Likewise. * testsuite/ld-scripts/extern.exp: Likewise. * testsuite/ld-scripts/log2.exp: Likewise. * testsuite/ld-scripts/map-address.exp: Likewise. * testsuite/ld-scripts/script.exp: Likewise. * testsuite/ld-scripts/sizeof.exp: Likewise.
2020-10-16ld: Allow symbols from PROVIDE to be use in MEMORY regionsAndrew Burgess11-20/+118
I wanted to write a linker script like this: PROVIDE(mem_origin = 0x1000); PROVIDE(mem_length = 0x1000); MEMORY { REGION : ORIGIN = mem_origin, LENGTH = mem_length } .... Then when I link using this script I can optionally supply: --defsym=mem_origin=..... --defsym=mem_length=.... to override the defaults. And though passing `--defsym' does work, if I remove the use of `--defsym' and just rely on the defaults I get an error: ld-new: invalid origin for memory region REGION Interestingly, if I make the above error non-fatal and dump a linker map file I see that (a) REGION has origin 0x0, and length 0xffff..., and (b) the symbol from the PROVIDE is provided. An examination of ldlang.c:lang_process shows us what the issue is, the origin and length of all memory regions are set as a result of a single call to lang_do_memory_regions, this call is done after calling open_input_bfds. During the open_input_bfds call provide statements can be converted to provided statements if we know that the assigned symbol is needed, but for symbols that are only used in the memory regions we are unaware that we need these symbols. What I propose in this patch is to make two calls to lang_do_memory_regions, in the first call we process the expressions for the origin and length fields of each region, however, errors, especially undefined symbols, will be ignored. The origin and length values are not updated. However, by evaluating the expressions any symbols we need will be added to the symbol table. Now when we call open_input_bfds, when we process the provide statements, we will see that the assigned symbol is needed add its new value to the symbol table. Finally we reach the original call to lang_do_memory_regions, in this (now second) call we again process the expressions, and this time update the origin and length values. Any errors encountered now are reported to the user. ld/ChangeLog: * ldlang.c (lang_process): Add extra call to lang_do_memory_regions, and pass parameter. (lang_do_memory_regions): Add parameter, only define origin and length when requested. Reindent. * testsuite/ld-scripts/provide-10.d: New file. * testsuite/ld-scripts/provide-10.map: New file. * testsuite/ld-scripts/provide-11.d: New file. * testsuite/ld-scripts/provide-11.map: New file. * testsuite/ld-scripts/provide-12.d: New file. * testsuite/ld-scripts/provide-12.map: New file. * testsuite/ld-scripts/provide-9.d: New file. * testsuite/ld-scripts/provide-9.map: New file. * testsuite/ld-scripts/provide-9.t: New file.
2020-10-16ld: More documentation for --defsymAndrew Burgess2-0/+13
The ordering of command line options --defsym and -T is important, however, the description of --defsym in the manual doesn't mention this. This commit adds more text to the description of --defsym to try and explain this ordering requirement. ld/ChangeLog: * ld.texi (Options): Extend the description of --defsym.
2020-10-16Add a new option to the linker: --error-handling-script=<NAME>. Run the ↵Nick Clifton11-2/+178
script <NAME> if an undefined symbol or unfound library error is encountered. PR 26626 * ldmain.c (undefined_symbol): If an error handlign script is available, call it. * ldfile.c (error_handling_script): Declare. (ldfile_open_file): If a library cannot be found and an error handling script is available, call it. * ldmain.h (error_handling_script): Prototype. * ldlex.h (OPTION_ERROR_HANDLING_SCRIPT): Define. * lexsup.c (ld_options): Add --error-handling-script. (parse_args): Add support for --errror-handling-script. * ld.texi: Document the new feature. * configure.ac: Add --error-handling-script option to disable support for the new feature. * NEWS: Mention the new feature. * config.in: Regenerate. * configure: Regenerate.
2020-10-16RISC-V: Fix that IRELATIVE relocs may be inserted to the wrong place.Nelson Chu7-0/+92
For the ifunc symbol, which is referenced by GOT rather than PLT relocs, we should add the dynamic reloc (usually IRELATIVE) into the .rel.iplt when generating the static executable. But if we use riscv_elf_append_rela to add the dynamic relocs into .rela.iplt, this may cause the overwrite problem. The reason is that we don't handle the `reloc_index` of .rela.iplt, but the riscv_elf_append_rela adds the relocs to the place that are calculated from the reloc_index (in seqential). Therefore, we may overwrite the dynamic relocs when the `reloc_index` of .rela.iplt isn't handled correctly. One solution is that we can add these dynamic relocs (GOT ifunc) from the last of .rela.iplt section. But I'm not sure if it is the best way. bfd/ * elfnn-riscv.c (riscv_elf_link_hash_table): Add last_iplt_index. (riscv_elf_size_dynamic_sections): Initialize the last_iplt_index. (riscv_elf_relocate_section): Use riscv_elf_append_rela. (riscv_elf_finish_dynamic_symbol): If the use_elf_append_rela is false, then we should add the dynamic relocs from the last of the .rela.iplt, and don't use the riscv_elf_append_rela to add. ld/ * testsuite/ld-riscv-elf/ifunc-plt-got-overwrite.s: New testcase. * testsuite/ld-riscv-elf/ifunc-plt-got-overwrite.d: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-got-overwrite-exe.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-got-overwrite-pic.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-got-overwrite-pie.rd: Likewise. * testsuite/ld-riscv-elf/ld-riscv-elf.exp: Updated.
2020-10-16RISC-V: Support GNU indirect functions.Nelson Chu56-2/+785
Generally, glibc dynamic linker should have two ways to deal with ifunc - one is to handle the IRELATIVE relocations for the non-preemtive ifunc symbols, the other is to handle the R_RISCV_32/64 and R_RISCV_JUMP_SLOT relocations with the STT_IFUNC preemtive symbols. No matter which method is used, both of them should get the resolved ifunc symbols at runtime. Therefore, linker needs to generate the correct dynamic relocations for ifunc to make sure the the dynamic linker works well. For now, there are thirteen relocations are supported for ifunc in GNU ld, * R_RISCV_CALL and R_RISCV_CALL_PLT: The RISC-V compiler won't generate R_RISCV_JAL directly to jump to an ifunc. Besides, we disable the relaxations for the relocation referenced to ifunc, so just handling the R_RISCV_CALL and R_RISCV_CALL_PLT should be enough. Linker should generate a .plt entry and a .got.plt entry for it, and also needs to insert a dynamic IRELATIVE in the .got.plt enrty, or insert a R_RISCV_JUMP_SLOT when generating shared library. * R_RISCV_PCREL_HI20 and R_RISCV_PCREL_LO12_I/S: LA/LLA pattern with local fPIC ifunc symbol, or any non-PIC ifunc symbol. The PC-relative relocation. The current linker will deal with them in the same way as R_RISCV_CALL_PLT. * R_RISCV_GOT_HI20 and R_RISCV_PCREL_LO12_I/S: LA pattern with global PIC ifunc symbol. Linker should insert a dynamic IRELATIVE in the .got entry, or insert a R_RISCV_32/64 when generating shared library. * R_RISCV_32 and R_RISCV_64: Store the ifunc symbol into the data section. Linker should insert a dynamic IRELATIVE in the data section, or insert a R_RISCV_32/64 when generating shared library. * R_RISCV_HI20 and R_RISCV_LO12_I/S: The LUI + ADDI/LW/SW patterns. The absolute access relocation. The medlow model without the -fPIC compiler option should generate them. The ld ifunc testsuites "Build pr23169a" and "Build pr23169d" need the relocations, they are in the ld/testsuite/ld-ifunc/, and need compiler support. However, we also made some optimizations with reference to x86, * If GOT and PLT relocations refer to the same ifunc symbol when generating pie, then they can actually share a .got entry without creating two entries to store the same value and relocation. * If GOT, PLT and DATA relocations refer to the same ifunc symbol when generating position dependency executable, then linker will fill the address of .plt entry into the corresponding .got entry and data section, without insert any dynamic relocations for the GOT and DATA relocations. For the ifunc testcases, there are three types of them, 1. ifunc-reloc-*: Only check the single type of relocation refers to ifunc symbol. * ifunc-reloc-call: R_RISCV_CALL and R_RISCV_CALL_PLT. * ifunc-reloc-data: R_RISCV_32 and R_RISCV_64. * ifunc-reloc-got: R_RISCV_GOT_HI20 and R_RISCV_PCREL_LO_I/S. * ifunc-reloc-pcrel: R_RISCV_PCREL_HI20 and R_RISCV_PCREL_LO_I/S. 2. ifunc-[nonplt|plt]-*: If we don't have PLT relocs, then don't need to create the PLT and it's .plt entries. * ifunc-nonplt: Combine R_RISCV_GOT_HI20 and R_RISCV_32/64. * ifunc-plt: Combine all ifunc relocations. 3. ifunc-seperate-*: If we link the ifunc caller and resolver into the same module (link the objects), then the results are the same as the ifunc-reloc-* and ifunc-[noplt|plt]-* testcases. Consider the cases that the ifunc callers and resolver are in the different modules, that is, we compile the ifunc resolver to the shared library first, and then link it with the ifunc callers. The output of ifunc callers should be the same as the normal STT_FUNC cases, and the shared ifunc resolver should define the symbols as STT_IFUNC. The R_RISCV_PCREL_HI20 reloc is special. It should be linked and resolved locally, so if the ifunc resolver is defined in other modules (other shared libraries), then the R_RISCV_PCREL_HI20 is unresolvable, and linker should issue an unresolvable reloc error. bfd/ * elfnn-riscv.c: Include "objalloc.h" since we need objalloc_alloc. (riscv_elf_link_hash_table): Add loc_hash_table and loc_hash_memory for local STT_GNU_IFUNC symbols. (riscv_elf_got_plt_val): Removed. (riscv_elf_local_htab_hash, riscv_elf_local_htab_eq): New functions. Use to compare local hash entries. (riscv_elf_get_local_sym_hash): New function. Find a hash entry for local symbol, and create a new one if needed. (riscv_elf_link_hash_table_free): New function. Destroy an riscv elf linker hash table. (riscv_elf_link_hash_table_create): Create hash table for local ifunc. (riscv_elf_check_relocs): Create a fake global symbol to track the local ifunc symbol. Add support to check and handle the relocations reference to ifunc symbols. (allocate_dynrelocs): Let allocate_ifunc_dynrelocs and allocate_local_ifunc_dynrelocs to handle the ifunc symbols if they are defined and referenced in a non-shared object. (allocate_ifunc_dynrelocs): New function. Allocate space in .plt, .got and associated reloc sections for ifunc dynamic relocs. (allocate_local_ifunc_dynrelocs): Likewise, but for local ifunc dynamic relocs. (riscv_elf_relocate_section): Add support to handle the relocation referenced to ifunc symbols. (riscv_elf_size_dynamic_sections): Updated. (riscv_elf_adjust_dynamic_symbol): Updated. (riscv_elf_finish_dynamic_symbol): Finish up the ifunc handling, including fill the PLT and GOT entries for ifunc symbols. (riscv_elf_finish_local_dynamic_symbol): New function. Called by riscv_elf_finish_dynamic_symbol to handle the local ifunc symbols. (_bfd_riscv_relax_section): Don't do the relaxation for ifunc. * elfxx-riscv.c: Add R_RISCV_IRELATIVE. * configure.ac: Link elf-ifunc.lo to use the generic ifunc support. * configure: Regenerated. include/ * elf/riscv.h: Add R_RISCV_IRELATIVE to 58. ld/ * emulparams/elf32lriscv-defs.sh: Add IREL_IN_PLT. * testsuite/ld-ifunc/ifunc.exp: Enable ifunc tests for RISC-V. * testsuite/ld-riscv-elf/ld-riscv-elf.exp (run_dump_test_ifunc): New dump test for ifunc. There are two arguments, 'target` and `output`. The `target` is rv32 or rv64, and the `output` is used to choose which output you want to test (exe, pie or .so). * testsuite/ld-riscv-elf/ifunc-reloc-call-01.s: New testcase. * testsuite/ld-riscv-elf/ifunc-reloc-call-01.d: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-call-01-exe.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-call-01-pic.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-call-01-pie.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-call-02.s: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-call-02.d: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-call-02-exe.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-call-02-pic.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-call-02-pie.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-data.s: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-data.d: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-data-exe.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-data-pic.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-data-pie.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-got.s: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-got.d: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-got-exe.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-got-pic.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-got-pie.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-pcrel.s: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-pcrel.d: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-pcrel-exe.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-pcrel-pic.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-reloc-pcrel-pie.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-nonplt.s: Likewise. * testsuite/ld-riscv-elf/ifunc-nonplt.d: Likewise. * testsuite/ld-riscv-elf/ifunc-nonplt-exe.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-nonplt-pic.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-nonplt-pie.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-01.s: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-01.d: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-01-exe.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-01-pic.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-01-pie.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-02.s: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-02.d: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-02-exe.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-02-pic.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-plt-02-pie.rd: Likewise. * testsuite/ld-riscv-elf/ifunc-seperate-resolver.s: Likewise. * testsuite/ld-riscv-elf/ifunc-seperate-caller.s: Likewise. * testsuite/ld-riscv-elf/ifunc-seperate-exe.d: Likewise. * testsuite/ld-riscv-elf/ifunc-seperate-pic.d: Likewise. * testsuite/ld-riscv-elf/ifunc-seperate-pie.d: Likewise. * testsuite/ld-riscv-elf/ifunc-seperate-caller-pcrel.s: Likewise. * testsuite/ld-riscv-elf/ifunc-seperate-pcrel-pic.d: Likewise. * testsuite/ld-riscv-elf/ifunc-seperate-pcrel-pie.d: Likewise.
2020-10-09x86: Support GNU_PROPERTY_X86_ISA_1_V[234] markerH.J. Lu144-179/+633
GCC 11 supports -march=x86-64-v[234] to enable x86 micro-architecture ISA levels: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97250 Update GNU_PROPERTY_X86_ISA_1_XXX macros: https://gitlab.com/x86-psABIs/x86-64-ABI/-/merge_requests/13 in x86 ELF binaries to indicate that micro-architecture ISA levels required to execute the binary: #define GNU_PROPERTY_X86_ISA_1_NEEDED (GNU_PROPERTY_X86_UINT32_OR_LO + 2) #define GNU_PROPERTY_X86_ISA_1_USED (GNU_PROPERTY_X86_UINT32_OR_AND_LO + 2) #define GNU_PROPERTY_X86_ISA_1_V2 (1U << 0) #define GNU_PROPERTY_X86_ISA_1_V3 (1U << 1) #define GNU_PROPERTY_X86_ISA_1_V4 (1U << 2) The previous GNU_PROPERTY_X86_ISA_1_XXX macros are deprecated and renamed to GNU_PROPERTY_X86_COMPAT_2_ISA_1_XXX. In addition to EM_X86_64, GNU_PROPERTY_X86_ISA_1_V[234] marker can be used by ld.so to detect the x86-64-v4 shared library placed in an x86-64-v2 directory by mistake on an x86-64-v2 machine to avoid crashes on x86-64-v4 instructions. Add -z x86-64-v[234] linker command line option to mark x86-64-v[234] ISA level as needed. Also add #define GNU_PROPERTY_X86_FEATURE_2_MASK (1U << 11) for mask registers. bfd/ PR gas/26703 * elf-linker-x86.h (elf_linker_x86_params): Add isa_level. * elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Merge GNU_PROPERTY_X86_ISA_1_V[234]. (_bfd_x86_elf_link_setup_gnu_properties): Generate GNU_PROPERTY_X86_ISA_1_V[234] for -z x86-64-v[234]. binutils/ PR gas/26703 * readelf.c (decode_x86_compat_2_isa): New function. (decode_x86_isa): Updated for new X86_ISA_1_XXX bits. (decode_x86_feature_1): Handle GNU_PROPERTY_X86_FEATURE_2_MASK. (print_gnu_property_note): Handle X86_COMPAT_2_ISA_1_USED, and X86_COMPAT_2_ISA_1_NEEDED. * testsuite/binutils-all/i386/pr21231b.s: Updated to the current GNU_PROPERTY_X86_ISA_1_USED and GNU_PROPERTY_X86_ISA_1_NEEDED values. * testsuite/binutils-all/x86-64/pr21231b.s: Likewise. * testsuite/binutils-all/x86-64/pr23494a.s: Likewise. * testsuite/binutils-all/x86-64/pr23494b.s: Likewise. * testsuite/binutils-all/x86-64/pr23494c.s: Likewise. * testsuite/binutils-all/i386/empty.d: Updated. * testsuite/binutils-all/i386/ibt.d: Likewise. * testsuite/binutils-all/i386/pr21231a.d: Likewise. * testsuite/binutils-all/i386/pr21231b.d: Likewise. * testsuite/binutils-all/i386/shstk.d: Likewise. * testsuite/binutils-all/x86-64/empty-x32.d: Likewise. * testsuite/binutils-all/x86-64/empty.d: Likewise. * testsuite/binutils-all/x86-64/ibt-x32.d: Likewise. * testsuite/binutils-all/x86-64/ibt.d: Likewise. * testsuite/binutils-all/x86-64/pr21231a.d: Likewise. * testsuite/binutils-all/x86-64/pr21231b.d: Likewise. * testsuite/binutils-all/x86-64/pr23494a-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494a.d: Likewise. * testsuite/binutils-all/x86-64/pr23494c-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494c.d: Likewise. * testsuite/binutils-all/x86-64/pr23494d-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494d.d: Likewise. * testsuite/binutils-all/x86-64/pr23494e-x32.d: Likewise. * testsuite/binutils-all/x86-64/pr23494e.d: Likewise. * testsuite/binutils-all/x86-64/shstk-x32.d: Likewise. * testsuite/binutils-all/x86-64/shstk.d: Likewise. gas/ PR gas/26703 * config/tc-i386.c (xstate): Add xstate_mask. (md_assemble): Check i.types[j], instead of i.tm.operand_types[j], for xstate. Set xstate_mask, instead of xstate_zmm, for RegMask. (output_insn): Update for GNU_PROPERTY_X86_ISA_1_V[234]. Update xstate for mask register and VSIB. * testsuite/gas/i386/i386.exp: Run more GNU_PROPERTY tests. * testsuite/gas/i386/property-1.s: Updated to the current GNU_PROPERTY_X86_ISA_1_USED value. * testsuite/gas/i386/property-2.s: Only keep cmove. * testsuite/gas/i386/property-3.s: Changed to addsubpd. * testsuite/gas/i386/property-1.d: Updated. * testsuite/gas/i386/property-2.d: Likewise. * testsuite/gas/i386/property-3.d: Likewise. * testsuite/gas/i386/property-4.d: Likewise. * testsuite/gas/i386/property-5.d: Likewise. * testsuite/gas/i386/property-6.d: Likewise. * testsuite/gas/i386/x86-64-property-1.d: Likewise. * testsuite/gas/i386/x86-64-property-2.d: Likewise. * testsuite/gas/i386/x86-64-property-3.d: Likewise. * testsuite/gas/i386/x86-64-property-4.d: Likewise. * testsuite/gas/i386/x86-64-property-5.d: Likewise. * testsuite/gas/i386/x86-64-property-6.d: Likewise. * testsuite/gas/i386/x86-64-property-7.d: Likewise. * testsuite/gas/i386/x86-64-property-8.d: Likewise. * testsuite/gas/i386/x86-64-property-9.d: Likewise. * testsuite/gas/i386/property-11.d: New file. * testsuite/gas/i386/property-11.s: Likewise. * testsuite/gas/i386/property-12.d: Likewise. * testsuite/gas/i386/property-12.s: Likewise. * testsuite/gas/i386/property-13.d: Likewise. * testsuite/gas/i386/property-13.s: Likewise. * testsuite/gas/i386/x86-64-property-11.d: Likewise. * testsuite/gas/i386/x86-64-property-12.d: Likewise. * testsuite/gas/i386/x86-64-property-13.d: Likewise. * testsuite/gas/i386/x86-64-property-14.d: Likewise. * testsuite/gas/i386/x86-64-property-14.s: Likewise. include/ PR gas/26703 * elf/common.h (GNU_PROPERTY_X86_ISA_1_USED): Renamed to ... (GNU_PROPERTY_X86_COMPAT_2_ISA_1_USED): This. (GNU_PROPERTY_X86_ISA_1_NEEDED): Renamed to ... (GNU_PROPERTY_X86_COMPAT_2_ISA_1_NEEDED): This. (GNU_PROPERTY_X86_ISA_1_XXX): Renamed to ... (GNU_PROPERTY_X86_COMPAT_2_ISA_1_XXX): This. (GNU_PROPERTY_X86_ISA_1_NEEDED): New. (GNU_PROPERTY_X86_ISA_1_USED): Likewise. (GNU_PROPERTY_X86_ISA_1_V2): Likewise. (GNU_PROPERTY_X86_ISA_1_V3): Likewise. (GNU_PROPERTY_X86_ISA_1_V4): Likewise. (GNU_PROPERTY_X86_FEATURE_2_MASK): Likewise. ld/ PR gas/26703 * NEWS: Mention -z x86-64-v[234]. * ld.texi: Document -z x86-64-v[234]. * emulparams/elf32_x86_64.sh: Use x86-64-level.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/x86-64-level.sh: New file. * testsuite/ld-elf/x86-feature-1a.rd: Update. * testsuite/ld-elf/x86-feature-1b.rd: Likewise. * testsuite/ld-elf/x86-feature-1c.rd: Likewise. * testsuite/ld-elf/x86-feature-1d.rd: Likewise. * testsuite/ld-elf/x86-feature-1e.rd: Likewise. * testsuite/ld-i386/pr23372c.d: Likewise. * testsuite/ld-i386/pr23486c.d: Likewise. * testsuite/ld-i386/pr23486d.d: Likewise. * testsuite/ld-i386/pr24322a.d: Likewise. * testsuite/ld-i386/pr24322b.d: Likewise. * testsuite/ld-i386/property-1a.r: Likewise. * testsuite/ld-i386/property-2a.r: Likewise. * testsuite/ld-i386/property-3.r: Likewise. * testsuite/ld-i386/property-3a.r: Likewise. * testsuite/ld-i386/property-4.r: Likewise. * testsuite/ld-i386/property-4a.r: Likewise. * testsuite/ld-i386/property-5.r: Likewise. * testsuite/ld-i386/property-5a.r: Likewise. * testsuite/ld-i386/property-7a.r: Likewise. * testsuite/ld-i386/property-x86-3.d: Likewise. * testsuite/ld-i386/property-x86-4a.d: Likewise. * testsuite/ld-i386/property-x86-5.d: Likewise. * testsuite/ld-i386/property-x86-cet1.d: Likewise. * testsuite/ld-i386/property-x86-cet2a.d: Likewise. * testsuite/ld-i386/property-x86-cet5a.d: Likewise. * testsuite/ld-i386/property-x86-cet5b.d: Likewise. * testsuite/ld-i386/property-x86-ibt1a.d: Likewise. * testsuite/ld-i386/property-x86-ibt1b.d: Likewise. * testsuite/ld-i386/property-x86-ibt2.d: Likewise. * testsuite/ld-i386/property-x86-ibt3a.d: Likewise. * testsuite/ld-i386/property-x86-ibt3b.d: Likewise. * testsuite/ld-i386/property-x86-ibt4.d: Likewise. * testsuite/ld-i386/property-x86-ibt5.d: Likewise. * testsuite/ld-i386/property-x86-shstk1a.d: Likewise. * testsuite/ld-i386/property-x86-shstk1b.d: Likewise. * testsuite/ld-i386/property-x86-shstk2.d: Likewise. * testsuite/ld-i386/property-x86-shstk3a.d: Likewise. * testsuite/ld-i386/property-x86-shstk3b.d: Likewise. * testsuite/ld-i386/property-x86-shstk4.d: Likewise. * testsuite/ld-i386/property-x86-shstk5.d: Likewise. * testsuite/ld-x86-64/pr23372c-x32.d: Likewise. * testsuite/ld-x86-64/pr23372c.d: Likewise. * testsuite/ld-x86-64/pr23486c.d: Likewise. * testsuite/ld-x86-64/pr23486d-x32.d: Likewise. * testsuite/ld-x86-64/pr23486d.d: Likewise. * testsuite/ld-x86-64/pr24322a-x32.d: Likewise. * testsuite/ld-x86-64/pr24322a.d: Likewise. * testsuite/ld-x86-64/pr24322b-x32.d: Likewise. * testsuite/ld-x86-64/pr24322b.d: Likewise. * testsuite/ld-x86-64/pr24458a-x32.d: Likewise. * testsuite/ld-x86-64/pr24458a.d: Likewise. * testsuite/ld-x86-64/pr24458b-x32.d: Likewise. * testsuite/ld-x86-64/pr24458b.d: Likewise. * testsuite/ld-x86-64/pr24458c-x32.d: Likewise. * testsuite/ld-x86-64/pr24458c.d: Likewise. * testsuite/ld-x86-64/property-1a.r: Likewise. * testsuite/ld-x86-64/property-2a.r: Likewise. * testsuite/ld-x86-64/property-3.r: Likewise. * testsuite/ld-x86-64/property-3a.r: Likewise. * testsuite/ld-x86-64/property-4.r: Likewise. * testsuite/ld-x86-64/property-4a.r: Likewise. * testsuite/ld-x86-64/property-5.r: Likewise. * testsuite/ld-x86-64/property-5a.r: Likewise. * testsuite/ld-x86-64/property-7a.r: Likewise. * testsuite/ld-x86-64/property-x86-3-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-3.d: Likewise. * testsuite/ld-x86-64/property-x86-4a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-4a.d: Likewise. * testsuite/ld-x86-64/property-x86-5-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-5.d: Likewise. * testsuite/ld-x86-64/property-x86-cet1-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet1.d: Likewise. * testsuite/ld-x86-64/property-x86-cet2a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet2a.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5a.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-cet5b.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1a.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt1b.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt2-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt2.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3a.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt3b.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt4-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt4.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt5-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-ibt5.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1a.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk1b.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk2-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk2.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3a-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3a.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3b-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk3b.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk4-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk4.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk5-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-shstk5.d: Likewise. * testsuite/ld-i386/i386.exp: Run property-x86-6, property-x86-isa1, property-x86-isa2 and property-x86-isa3. * testsuite/ld-i386/property-x86-1.S: Updated to the current GNU_PROPERTY_X86_ISA_1_USED and GNU_PROPERTY_X86_ISA_1_NEEDED values. * testsuite/ld-i386/property-x86-2.S: Likewise. * testsuite/ld-i386/property-x86-3.s: Likewise. * testsuite/ld-x86-64/pr23372d.s: Likewise. * testsuite/ld-x86-64/pr23372e.s: Likewise. * testsuite/ld-x86-64/pr23372f.s: Likewise. * testsuite/ld-x86-64/pr23486c.s: Likewise. * testsuite/ld-x86-64/pr23486d.s: Likewise. * testsuite/ld-x86-64/property-x86-1.S: Likewise. * testsuite/ld-x86-64/property-x86-2.S: Likewise. * testsuite/ld-x86-64/property-x86-3.s: Likewise. * testsuite/ld-x86-64/property-x86-5a.s: Likewise. * testsuite/ld-x86-64/property-x86-5b.s: Likewise. * testsuite/ld-i386/property-x86-6.d: New file. * testsuite/ld-i386/property-x86-isa1.d: Likewise. * testsuite/ld-i386/property-x86-isa2.d: Likewise. * testsuite/ld-i386/property-x86-isa3.d: Likewise. * testsuite/ld-x86-64/property-x86-6-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-6.d: Likewise. * testsuite/ld-x86-64/property-x86-6.s: Likewise. * testsuite/ld-x86-64/property-x86-isa1-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa1.d: Likewise. * testsuite/ld-x86-64/property-x86-isa1.s: Likewise. * testsuite/ld-x86-64/property-x86-isa2-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa2.d: Likewise. * testsuite/ld-x86-64/property-x86-isa3-x32.d: Likewise. * testsuite/ld-x86-64/property-x86-isa3.d: Likewise. * testsuite/ld-x86-64/simple.s: Likewise. * ld/testsuite/ld-x86-64/x86-64.exp: Run property-x86-6, property-x86-6-x32, property-x86-isa1, property-x86-isa1-x32, property-x86-isa2, property-x86-isa2-x32, property-x86-isa3-x32 and property-x86-isa3.
2020-10-07x86: Update GNU property testsH.J. Lu7-0/+16
Update property tests for glibc compiled by Fedora binary annotation plugin for GCC, which may insert additonal GNU properties: x86 ISA needed: SSE, SSE2 * testsuite/ld-i386/property-3.r: Updated for Fedora binary annotation plugin for GCC. * testsuite/ld-i386/property-4.r: Likewise. * testsuite/ld-i386/property-5.r: Likewise. * testsuite/ld-x86-64/property-3.r: Likewise. * testsuite/ld-x86-64/property-4.r: Likewise. * testsuite/ld-x86-64/property-5.r: Likewise.
2020-10-06x86: Properly merge -z ibt and -z shstkH.J. Lu13-0/+148
Merge -z ibt and -z shstk only with GNU_PROPERTY_X86_FEATURE_1_AND, not any GNU_PROPERTY_X86_UINT32_AND_XXX properties. bfd/ PR ld/26711 * elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Merge -z ibt and -z shstk only with GNU_PROPERTY_X86_FEATURE_1_AND. ld/ PR ld/26711 * testsuite/ld-i386/i386.exp: Run ld/26711 tests. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-i386/pr26711-1.d: Likewise. * testsuite/ld-i386/pr26711-2.d: Likewise. * testsuite/ld-i386/pr26711-3.d: Likewise. * testsuite/ld-x86-64/pr26711-1-x32.d: Likewise. * testsuite/ld-x86-64/pr26711-1.d: Likewise. * testsuite/ld-x86-64/pr26711-2-x32.d: Likewise. * testsuite/ld-x86-64/pr26711-2.d: Likewise. * testsuite/ld-x86-64/pr26711-3-x32.d: Likewise. * testsuite/ld-x86-64/pr26711-3.d: Likewise. * testsuite/ld-x86-64/pr26711.s: Likewise.
2020-10-06PR26667, Add powerpc64le-*-freebsd* supportBrandon Bergren6-0/+25
PR 26667 bfd/ * config.bfd: Add powerpc64le-*-freebsd*. * configure.ac: Add powerpc_elf64_fbsd_le_vec. * elf64-ppc.c (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME): Define for freebsd. * targets.c (powerpc_elf64_fbsd_le_vec): Declare. (_bfd_target_vector): Add it. * configure: Regenerate. ld/ * Makefile.am (ALL_64_EMULATION_SOURCES): Add eelf64lppc_fbsd.c. Include $(DEPDIR)/eelf64lppc_fbsd.Pc. * configure.tgt: Add powerpc64le-*-freebsd*. * emulparams/elf64lppc_fbsd.sh: New file. * Makefile.in: Regenerate. * po/BLD-POTFILES.in: Regenerate.
2020-10-05i386: Allow non-absolute segment values for lcall/ljmpT.K. Chia10-0/+93
Allow an unresolved or non-absolute symbol as the segment operand of an immediate far jump (`ljmp SEG, OFF') or far call (`lcall SEG, OFF'). gas/ 2020-10-05 T.K. Chia <u1049321969@caramail.com> PR gas/26694 * NEWS: Updated for i386 lcall and ljmp change. * config/tc-i386.c (output_interseg_jump): Allow non-absolute segment operand for immediate lcall and ljmp. * testsuite/gas/i386/jump.d, * testsuite/gas/i386/jump.s, * testsuite/gas/i386/jump16.d, * testsuite/gas/i386/jump16.e, * testsuite/gas/i386/jump16.s: Add tests for non-absolute segment operand for immediate ljmp. ld/ 2020-10-05 T.K. Chia <u1049321969@caramail.com> PR gas/26694 * testsuite/ld-i386/ljmp.s, * testsuite/ld-i386/ljmp1.d, * testsuite/ld-i386/ljmp1.s, * testsuite/ld-i386/ljmp2.d, * testsuite/ld-i386/ljmp2.s, * testsuite/ld-x86-64/ljmp1.d, * testsuite/ld-x86-64/ljmp2.d: New testcases. * testsuite/ld-i386/i386.exp, * testsuite/ld-x86-64/x86-64.exp: Run them.
2020-10-05Update the BFD linker so that it deprecates grouped short options.Nick Clifton2-0/+19
* lexsup.c (parse_args): Generate an error or warning message when multiple short options are used together.
2020-10-02Allow note sections to be discarded when they are linked to another ↵H.J. Lu4-0/+25
discarded secction. PR 26681 bfd * elflink.c (bfd_elf_gc_sections): Do not arbitrarily keep note sections which are linked to another section. ld * testsuite/ld-elf/pr26681.s: New test. * testsuite/ld-elf/pr26681.d: New test driver. * testsuite/ld-elf/pr26681.l: New test output.
2020-09-30ld: Override the IR definition for non-ELF targetsH.J. Lu2-2/+10
For non-ELF targets, override the IR definition before all LTO symbols have been read. PR ld/26675 * plugin.c (plugin_notice): Override the IR definition before all LTO symbols have been read for non-ELF targets.
2020-09-30After preventing creating an import library for an exe when there are no ↵Jeremy Drake3-2/+11
exports, to avoid a crash, it turned out that some projects expected to be able to create an import library for a dll with no exports, so more closely match the condition to the condition around initializing the dll name. PR 26588 * emultempl/pe.em (_finish): Generate an import library for DLLs, even if they have no exports. * emultempl/pep.em (_finish): Likewise.
2020-09-28PR26656 testcasesAlan Modra7-0/+258
* testsuite/ld-powerpc/tlsget.d, * testsuite/ld-powerpc/tlsget.s, * testsuite/ld-powerpc/tlsget.wf, * testsuite/ld-powerpc/tlsget2.d. * testsuite/ld-powerpc/tlsget2.wf: New testcases. * testsuite/ld-powerpc/powerpc.exp: Run them.
2020-09-26PPC64_OPT_LOCALENTRY is incompatible with tail callsAlan Modra10-37/+45
The save of r2 in __glink_PLTresolve is the culprit. Remove it, unless we know we need it for --plt-localentry. --plt-localentry should not be used with power10 pc-relative code that makes tail calls. The patch also removes use of r2 as a scratch reg in the ELFv2 __glink_PLTresolve. Using r2 isn't a problem, this is just reducing the number of scratch regs. bfd/ * elf64-ppc.c (GLINK_PLTRESOLVE_SIZE): Depend on has_plt_localentry0. (LD_R0_0R11, ADD_R11_R0_R11): Define. (ppc64_elf_tls_setup): Disable params->plt_localentry0 when power10 code detected. (ppc64_elf_size_stubs): Update __glink_PLTresolve eh_frame. (ppc64_elf_build_stubs): Move r2 save to start of __glink_PLTresolve, and only emit for has_plt_localentry0. Don't use r2 in the stub. ld/ * testsuite/ld-powerpc/elfv2so.d, * testsuite/ld-powerpc/notoc2.d, * testsuite/ld-powerpc/tlsdesc.wf, * testsuite/ld-powerpc/tlsdesc2.d, * testsuite/ld-powerpc/tlsdesc2.wf, * testsuite/ld-powerpc/tlsopt5.d, * testsuite/ld-powerpc/tlsopt5.wf, * testsuite/ld-powerpc/tlsopt6.d, * testsuite/ld-powerpc/tlsopt6.wf: Update __glink_PLTresolve.
2020-09-24PR26655, Power10 libstdc++.so R_PPC64_NONE dynamic relocsAlan Modra2-3/+22
Some of the powerpc64 code editing functions are better run after dynamic symbols have stabilised in order to make proper decisions based on SYMBOL_REFERENCES_LOCAL. The dynamic symbols are processed early in bfd_elf_size_dynamic_sections, before the backend always_size_sections function is called. One function, ppc64_elf_tls_setup must run before bfd_elf_size_dynamic_sections because it changes dynamic symbols. ppc64_elf_edit_opd and ppc64_elf_inline_plt can run early or late, I think. ppc64_elf_tls_optimize and ppc64_elf_edit_toc are better run later. So this patch arranges to call some edit functions later via always_size_sections. PR 26655 bfd/ * elf64-ppc.c (ppc64_elf_func_desc_adjust): Rename to.. (ppc64_elf_edit): Call params->edit. (ppc64_elf_tls_setup): Don't call _bfd_elf_tls_setup. Return a bfd_boolean. * elf64-ppc.h (struct ppc64_elf_params): Add "edit". (ppc64_elf_tls_setup): Update declaration. ld/ * emultempl/ppc64elf.em (params): Add ppc_edit. (ppc_before_allocation): Split off some edit functions to.. (ppc_edit): ..this, new function.
2020-09-22Linker: If the type is pie the results should be an executable which entry ↵Frediano Ziglio3-2/+8
point should be an executable entry point, not a DLL one. * emultempl/pe.em (set_entry_point): Only use the DLL entry point for DLLs. * emultempl/pep.em (set_entry_point): Likewise.
2020-09-16Add -Av9 to AFLAGS_PIC and AFLAGS_PIE in the ld test suite on SPARC.Mikael Pettersson3-1/+9
* testsuite/ld-elf/shared.exp: Add -Av9 to AFLAGS_PIE on sparc. * testsuite/ld-elf/tls.exp: Add -Av9 to AFLAGS_PIC on sparc.
2020-09-16elf/x86-64: Adjust relocation for PE/x86-64 inputsH.J. Lu21-10/+294
PE linker calls _bfd_relocate_contents to resolve relocation, instead of bfd_perform_relocation. But ELF linker calls bfd_perform_relocation, not _bfd_relocate_contents. When linking PE/x86-64 inputs to generate ELF output, we need to adjust PE/x86-64 relocations in bfd_perform_relocation. Enable PE/x86-64 in bfd together with PEI/x86-64. Update run_ld_link_tests to handle bzip2 binary inputs. bfd/ PR ld/26583 * config.bfd (targ64_selvecs, targ_selvecs): Add x86_64_pe_vec to x86_64_pei_vec. * reloc.c: Include "coff/internal.h". (bfd_perform_relocation): Adjust relocation for PE/x86-64 inputs. ld/ PR ld/26583 * testsuite/ld-x86-64/pe-x86-64-1.od: New file. * testsuite/ld-x86-64/pe-x86-64-1a.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-1b.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-1c.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-2.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-2a.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-2b.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-2c.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-3.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-3a.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-3b.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-3c.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-3d.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-4.od: Likewise. * testsuite/ld-x86-64/pe-x86-64-4a.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-4b.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-4c.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64-4d.obj.bz2: Likewise. * testsuite/ld-x86-64/pe-x86-64.exp: Likewise. * testsuite/lib/ld-lib.exp (run_ld_link_tests): Handle bz2 binary inputs.
2020-09-16Tidy elf_symbol_fromAlan Modra2-1/+6
bfd/ * elf-bfd.h (elf_symbol_from): Remove unused ABFD parameter. * elf.c (ignore_section_sym, _bfd_elf_copy_private_symbol_data), (swap_out_syms): Adjust elf_symbol_from invocation. binutils/ * nm.c (print_symbol): Adjust elf_symbol_from invocation. * objcopy.c (is_hidden_symbol): Likewise. gas/ * config/obj-elf.c (obj_elf_visibility, elf_frob_symbol): Adjust elf_symbol_from invocation. * config/tc-aarch64.c (s_variant_pcs): Likewise. * config/tc-m68hc11.c (s_m68hc11_mark_symbol): Likewise. * config/tc-ppc.c (ppc_elf_localentry, ppc_force_relocation), (ppc_fix_adjustable): Likewise. * config/tc-xgate.c (xgate_frob_symbol): Likewise. ld/ * plugin.c (asymbol_from_plugin_symbol): Adjust elf_symbol_from invocation. opcodes/ * ppc-dis.c (ppc_symbol_is_valid): Adjust elf_symbol_from invocation.
2020-09-15elf: Check bfd_target_elf_flavour on input firstH.J. Lu2-1/+6
Check bfd_target_elf_flavour on input first in ldelf_after_open before checking elf_tdata. * ldelf.c (ldelf_after_open): Check bfd_target_elf_flavour first.
2020-09-15CRIS: fix PR ld/26589, a missing NULL check in fix for PR ld/22269Hans-Peter Nilsson3-0/+35
Not sure why there wasn't a NULL check in the ld/22269 patch (e01c16a8) at the time, as there was one for the corresponding patch to elf32-m68k.c (5056ba1d). Incidentally, I had missed that in 2017, as a prerequisite for the ld/22269 series, the check_relocs function finally were made "safe"! (I.e. the number of references and symbol types are final, garbage collection done, so port-specific accounting can be made sanely.) Committed. bfd: PR ld/26589 * elf32-cris.c (cris_elf_check_relocs): Add missing NULL check on argument before calling UNDEFWEAK_NO_DYNAMIC_RELOC. ld: PR ld/26589 * testsuite/ld-elf/pr26589.d, testsuite/ld-elf/locref3.s: New test.
2020-09-13Re: elf: Add -z unique-symbolAlan Modra2-3/+9
PR 26391 * testsuite/ld-elf/pr26391.nd: Adjust to match powerpc64 function descriptors.
2020-09-12elf: Add -z unique-symbol to avoid duplicated local symbol namesH.J. Lu12-0/+221
The symbol string table in the .symtab section is optional and cosmetic. The contents of the .symtab section have no impact on run-time execution. The symbol names in the symbol string table help distinguish addresses at different locations. Add a linker option, -z unique-symbol, to avoid duplicated local symbol names in the symbol string table. This feature was well received by the livepatch maintainers. It not only solves the duplicated local symbol name problem, but also would allow livepatch to more precisely locate duplicate symbols in general for patching. bfd/ PR ld/26391 * elflink.c (elf_final_link_info): Add local_hash_table. (local_hash_entry): New. (local_hash_newfunc): Likewise. (elf_link_output_symstrtab): Append ".COUNT" to duplicated local symbols. (bfd_elf_final_link): Initialize and free local_hash_table for "-z unique-symbol". include/ PR ld/26391 * bfdlink.h (bfd_link_info): Add unique_symbol. ld/ PR ld/26391 * NEWS: Mention "-z unique-symbol". * emultempl/elf.em (gld${EMULATION_NAME}_handle_option): Handle "-z unique-symbol" and "-z nounique-symbol". * ld.texi: Document "-z unique-symbol" and "-z nounique-symbol". * lexsup.c (elf_static_list_options): Add "-z unique-symbol" and "-z nounique-symbol". * testsuite/ld-elf/elf.exp: Add PR ld/26391 tests. * testsuite/ld-elf/pr26391.nd: New file. * testsuite/ld-elf/pr26391.out: Likewise. * testsuite/ld-elf/pr26391a.c: Likewise. * testsuite/ld-elf/pr26391b.c: Likewise. * testsuite/ld-elf/pr26391c.c: Likewise. * testsuite/ld-elf/pr26391d.c: Likewise.
2020-09-11Fix a segfault when creating an import library with 0 exports.Jeremy Drake3-2/+11
PR 26588 * emultempl/pe.em (_finish): Only generate a import library if not exporting relocs. * emultempl/pep.em: Likewise.
2020-09-10aarch64: Return an error on conditional branch to an undefined symbolSiddhesh Poyarekar2-6/+6
The fix in 7e05773767820b441b23a16628b55c98cb1aef46 introduced a PLT for conditional jumps when the target symbol is undefined. This is incorrect because conditional branch relocations are not allowed to clobber IP0/IP1 and hence, should not result in a dynamic relocation. Revert that change and in its place, issue an error when the target symbol is undefined. bfd/ 2020-09-10 Siddhesh Poyarekar <siddesh.poyarekar@arm.com> * elfnn-aarch64.c (elfNN_aarch64_final_link_relocate): Revert changes in 7e05773767820b441b23a16628b55c98cb1aef46. Set error for undefined symbol in BFD_RELOC_AARCH64_BRANCH19 and BFD_RELOC_AARCH64_TSTBR14 relocations. ld/ 2020-09-10 Siddhesh Poyarekar <siddesh.poyarekar@arm.com> * testsuite/ld-aarch64/emit-relocs-560.d: Expect error instead of valid output.
2020-09-10ld: Add more tests for --as-neededH.J. Lu7-0/+99
Prior to commit 1e3b96fd6cf0c7d018083994ad951ccf92aba582 Author: Alan Modra <amodra@gmail.com> Date: Fri Sep 4 13:54:21 2020 +0930 Allow plugin syms to mark as-needed shared libs needed when removing unused IR symbol references, ld didn't add unnecessary DT_NEEDED libraries which may lead to undefined symbol reference in a --as-needed library when the symbol is defined in a prior --as-needed library and there is no reference in relocatable inputs. This behavior is desirable since it ensures that both lazy and non-lazy bindings work the same way. The problem is with --as-needed libraries, which happens with and without LTO. Now, the linker may add many unnecessary DT_NEEDED libraries for IR inputs. PR ld/26590 * testsuite/ld-elf/pr26590.err: New file. * testsuite/ld-elf/pr26590a.c: Likewise. * testsuite/ld-elf/pr26590b.c: Likewise. * testsuite/ld-elf/pr26590c.c: Likewise. * testsuite/ld-elf/pr26590d.c: Likewise. * testsuite/ld-elf/shared.exp: Run ld/26590 tests.
2020-09-10Re: PR26580, Size and alignment of commons vs as-needed shared libAlan Modra2-1/+5
Some MIPS targets, for reasons I didn't analyse, use the larger common symbol in a shared lib rather than a smaller common in an executable. That doesn't seem unreasonable, so allow that to pass for pr26580-2. bfin-elf complains about not supporting copy relocs, but it's quite silly to want a copy reloc for common symbols, so leave the fail there. mn10300-elf and score-elf both fail the test with "PHDR segment not covered by LOAD segment". Other tests fail similarly so one more doesn't hurt. The failure is a consequence of supporting dynamic objects but setting EMBEDDED in ld scripts. PR 26580 * testsuite/ld-elf/pr26580-2.sd: Accept undefined symbol.
2020-09-10Re: lto-18 testAlan Modra4-4/+21
Extend the test a little to archives, not that we expect this to fail. Nor has the lto-18 test ever failed without -flto. * testsuite/ld-plugin/lto-18b.c (select): Remove. * testsuite/ld-plugin/lto-18c.c (select): Remove. * testsuite/ld-plugin/lto.exp: Build archives for lto-18 too, and run static versions of the test.
2020-09-09lto-18 testAlan Modra7-4/+74
Demonstrates a reason to use IR symbols when deciding an --as-needed library should be loaded. * testsuite/ld-plugin/lto-18a.c, * testsuite/ld-plugin/lto-18b.c, * testsuite/ld-plugin/lto-18c.c, * testsuite/ld-plugin/lto-18d.c, * testsuite/ld-plugin/lto-18.out: New test. * testsuite/ld-plugin/lto.exp: Run it.
2020-09-08MSP430: Support relocations for subtract expressions in .uleb128 directivesJozef Lawrynowicz5-0/+64
Link-time relaxations of branches are common for MSP430, given that GCC can generate pessimal branch instructions, and the -mcode-region=either/-mdata-region=either options to shuffle sections can further change the type of branch instruction required. These relaxations can result in invalid code when .uleb128 directives, used in the .gcc_except_table section, are used to calculate the distance between two labels. A value for the .uleb128 directive is calculated at assembly-time, and can't be updated at link-time, even if relaxation causes the distance between the labels to change. This patch adds relocations for subtract expressions in .uleb128 directives, to allow the linker to re-calculate the value of these expressions after relaxation has been performed. bfd/ChangeLog: * bfd-in2.h (bfd_reloc_code_real): Add BFD_RELOC_MSP430_{SET,SUB}_ULEB128. * elf32-msp430.c (msp430_elf_ignore_reloc): New. (elf_msp430_howto_table): Add R_MSP430{,X}_GNU_{SET,SUB}_ULEB128. (msp430_reloc_map): Add R_MSP430_GNU_{SET,SUB}_ULEB128. (msp430x_reloc_map): Add R_MSP430X_GNU_{SET,SUB}_ULEB128. (write_uleb128): New. (msp430_final_link_relocate): Handle R_MSP430{,X}_GNU_{SET,SUB}_ULEB128. * libbfd.c (_bfd_write_unsigned_leb128): New. * libbfd.h (_bfd_write_unsigned_leb128): New prototype. Add BFD_RELOC_MSP430_{SET,SUB}_ULEB128. * reloc.c: Document BFD_RELOC_MSP430_{SET,SUB}_ULEB128. binutils/ChangeLog: * readelf.c (target_specific_reloc_handling): Handle R_MSP430{,X}_GNU_{SET,SUB}_ULEB128. gas/ChangeLog: * config/tc-msp430.c (msp430_insert_uleb128_fixes): New. (msp430_md_end): Call msp430_insert_uleb128_fixes. include/ChangeLog: * elf/msp430.h (elf_msp430_reloc_type): Add R_MSP430_GNU_{SET,SUB}_ULEB128. (elf_msp430x_reloc_type): Add R_MSP430X_GNU_{SET,SUB}_ULEB128. ld/ChangeLog: * testsuite/ld-msp430-elf/msp430-elf.exp: Run new tests. * testsuite/ld-msp430-elf/uleb128.s: New test. * testsuite/ld-msp430-elf/uleb128_430.d: New test. * testsuite/ld-msp430-elf/uleb128_430x.d: New test.
2020-09-08PR26580, Size and alignment of commons vs as-needed shared libAlan Modra11-10/+113
Two pieces to this puzzle: 1) Revert HJ's fix for PR13250 so that size and alignment isn't sticky, instead attack the real underlying problem that _bfd_generic_link_add_one_symbol does the wrong thing in making a common section in a shared library bfd. 2) Save and restore common u.c.p fields, which hold the section and alignment. A better fix for (2) would be to throw away all of that horrible code saving and restoring the hash table when loading as-needed library symbols, and instead do a scan over as-needed library symbols before adding anything. bfd/ PR 13250 PR 26580 * elflink.c (_bfd_elf_merge_symbol): Make "override" a bfd**. Return oldbfd in override when old common should override new common. (_bfd_elf_add_default_symbol): Adjust to suit. (elf_link_add_object_symbols): Likewise. Pass "override" to _bfd_generic_link_add_one_symbol. Save and restore common u.c.p field for --as-needed shared libraries. Revert pr13250 changes. ld/ * testsuite/ld-elf/pr26580-a.s, * testsuite/ld-elf/pr26580-b.s, * testsuite/ld-elf/pr26580-1.sd, * testsuite/ld-elf/pr26580-2.sd: New tests * testsuite/ld-elf/comm-data.exp: Run new tests. * testsuite/ld-elf/pr26580-a.c, * testsuite/ld-elf/pr26580-b.c, * testsuite/ld-elf/pr26580-3.out, * testsuite/ld-elf/pr26580-4.out: New tests. * testsuite/ld-elf/shared.exp: Run new tests.
2020-09-04Allow plugin syms to mark as-needed shared libs neededAlan Modra7-47/+9
We must tell LTO about symbols in all shared libraries loaded. That means we can't load extra shared libraries after LTO recompilation, at least, not those that affect the set of symbols that LTO cares about, the IR symbols. This change will likely result in complaints about --as-needed libraries being loaded unnecessarily, but being correct is more important than being optimal. One of the PR15146 tests regresses, and while that could be hidden by disabling the missing dso message by making it conditional on h->root.non_ir_ref_regular, that would just be sweeping a problem under the rug. bfd/ PR 15146 PR 26314 PR 26530 * elflink.c (elf_link_add_object_symbols): Do set def_regular and ref_regular for IR symbols. Don't clear dynsym, allowing IR symbols to load --as-needed shared libraries, but prevent IR symbols from becoming dynamic. ld/ * testsuite/ld-plugin/lto.exp: Don't run pr15146 tests. * testsuite/ld-plugin/pr15146.d: Delete. * testsuite/ld-plugin/pr15146a.c: Delete. * testsuite/ld-plugin/pr15146b.c: Delete. * testsuite/ld-plugin/pr15146c.c: Delete. * testsuite/ld-plugin/pr15146d.c: Delete.
2020-09-03ld: Change NOSANTIZE_CFLAGS to NOSANITIZE_CFLAGSH.J. Lu20-97/+120
* testsuite/config/default.exp: Change NOSANTIZE_CFLAGS to NOSANITIZE_CFLAGS. * testsuite/ld-elf/dwarf.exp: Likewise. * testsuite/ld-elf/indirect.exp: Likewise. * testsuite/ld-elf/linux-x86.exp: Likewise. * testsuite/ld-elf/shared.exp: Likewise. * testsuite/ld-elf/tls.exp: Likewise. * testsuite/ld-elfcomm/elfcomm.exp: Likewise. * testsuite/ld-elfvers/vers.exp: Likewise. * testsuite/ld-elfvsb/elfvsb.exp: Likewise. * testsuite/ld-elfweak/elfweak.exp: Likewise. * testsuite/ld-gc/gc.exp: Likewise. * testsuite/ld-plugin/lto.exp: Likewise. * testsuite/ld-plugin/plugin.exp: Likewise. * testsuite/ld-scripts/crossref.exp: Likewise. * testsuite/ld-selective/selective.exp: Likewise. * testsuite/ld-shared/shared.exp: Likewise. * testsuite/ld-size/size.exp: Likewise. * testsuite/ld-srec/srec.exp: Likewise. * testsuite/ld-x86-64/x86-64.exp: Likewise.
2020-09-03RISC-V: Minor cleanup and typos when merging elf attributes.Nelson Chu7-12/+22
bfd/ * elfnn-riscv.c (riscv_i_or_e_p): Minor cleanup for warnings/errors. (riscv_merge_std_ext): Likewise. (riscv_merge_arch_attr_info): Likewise. (riscv_merge_attributes): Likewise and fix comment typos. ld/ * testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-01.d: Remove the useless `warnings` keywords. * testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-02.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-03.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-04.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-05.d: Likewise. * testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-06.d: Likewise.
2020-09-03RISC-V: Report warnings rather than errors for the mis-matched ISA versions.Nelson Chu8-1/+50
Same as the privileged spec attributes check - different ISA versions should be compatible, unless there are some known conflicts. Therefore, we should allow to link objects with different ISA versions, and update the output ISA versions once the corresponding input ones are newer. But it's better to also warn people that the conflicts may happen when the ISA versions are mis-matched. bfd/ * elfnn-riscv.c (riscv_version_mismatch): Change the return type from void to bfd_boolean. Report warnings rather than errors when the ISA versions are mis-matched. Afterwards, remember to update the output ISA versions to the newest ones. (riscv_merge_std_ext): Allow to link objects with different standard ISA versions. Try to add output ISA versions to merged_subsets first. (riscv_merge_multi_letter_ext): Likewise. But for standard additional ISA and non-standard ISA versions. ld/ * testsuite/ld-riscv-elf/attr-merge-arch-failed-01.d: Update the message from error to warning. * testsuite/ld-riscv-elf/attr-merge-arch-failed-02.d: New testcases. * testsuite/ld-riscv-elf/attr-merge-arch-failed-02a.s: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-failed-02b.s: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-failed-02c.s: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-failed-02d.s: Likewise. * testsuite/ld-riscv-elf/ld-riscv-elf.exp: Updated.
2020-09-03RISC-V: Improve the error message for the mis-matched ISA versions.Kito Cheng4-3/+9
Consider the updated attr-merge-arch-failed-01.d testcase. Extension A's version are mis-matched between attr-merge-arch-failed-01a.s and attr-merge-arch-failed-01b.s. But the old binutils reports that the mis-matched extension is M rather than A. This commit is used to fix the wrong mis-matched error message. Besides, when parsing the arch string in the riscv_parse_subset, it shouldn't be NULL or empty. However, it might be empty when we failed to merge the arch string in the riscv_merge_attributes. Since we should already issue the correct error message in another side, and the message - ISA string must begin with rv32 or rv64 - is meaninglesss when the arch string is empty, so do not issue it. bfd/ * elfnn-riscv.c (riscv_merge_std_ext): Fix to report the correct error message when the versions of extension are mis-matched. * elfxx-riscv.c (riscv_parse_subset): Don't issue the error when the string is empty. ld/ * testsuite/ld-riscv-elf/attr-merge-arch-failed-01.d: Updated. * testsuite/ld-riscv-elf/attr-merge-arch-failed-01a.s: Likewise. * testsuite/ld-riscv-elf/attr-merge-arch-failed-01b.s: Likewise.
2020-09-03heap use after free in xcoff_archive_info_eqAlan Modra2-1/+6
Using an input file objalloc memory for anything that isn't created when opening the bfd is not a good idea. The problem is that this memory can disappear if bfd_free_cached_info is called or when bfd closes files in order to keep the number of open files reasonable. bfd/ * xcofflink.c (xcoff_get_archive_info): Allocate xcoff_archive_info on the output bfd objalloc memory. ld/ * testsuite/ld-scripts/sysroot-prefix.exp (single_sysroot_prefix_test): Log $scriptname.
2020-08-30ld: Add $NOSANTIZE_CFLAGS to more linker testsH.J. Lu6-9/+33
* testsuite/ld-elf/dwarf.exp: Append $NOSANTIZE_CFLAGS to CFLAGS. * testsuite/ld-elf/shared.exp: Likewise. * testsuite/ld-elfvsb/elfvsb.exp: Likewise. * testsuite/ld-shared/shared.exp: Likewise. * testsuite/ld-size/size.exp: Likewise.
2020-08-28MSP430: Fix alignment of __*_array_start symbols in default linker scriptJozef Lawrynowicz13-1/+320
__{preinit,init,fini}_array_start symbols must be word aligned in linker scripts. If the section preceding the __*_array_start symbol has an odd size, then a NULL byte will be present between the start symbol and the .*_array section itself, when the section gets automatically word-aligned. This results in a branch to an invalid address when the CRT startup code tries to run through the functions listed in the array sections. Some MSP430 linker scripts do not align the __*_array start symbols, so this added warning will catch that problem and help the user avoid the potential incorrect execution of the program. ld/ChangeLog: * emultempl/msp430.em (input_section_exists): New. (check_array_section_alignment): New. (gld${EMULATION_NAME}_finish): New. * scripttempl/elf32msp430.sc: Add ALIGN directives before the definition of __*_array_start symbols. * testsuite/ld-msp430-elf/finiarray-warn.ld: New test. * testsuite/ld-msp430-elf/finiarray-warn.r: New test. * testsuite/ld-msp430-elf/initarray-nowarn.ld: New test. * testsuite/ld-msp430-elf/initarray-warn.ld: New test. * testsuite/ld-msp430-elf/initarray-warn.r: New test. * testsuite/ld-msp430-elf/initarray.s: New test. * testsuite/ld-msp430-elf/msp430-elf.exp: Run new tests. * testsuite/ld-msp430-elf/preinitarray-warn.ld: New test. * testsuite/ld-msp430-elf/preinitarray-warn.r: New test.
2020-08-28LD: Add new %pU vfinfo format for printing linker script nameJozef Lawrynowicz2-3/+10
The %pT vfinfo format prints the linker script name with a line number, however sometimes it may be necessary to print the linker script name without any associated line number. ld/ChangeLog: * ldmisc.c (vfinfo): Support new "%pU" format specifier.
2020-08-28CSKY: Support attribute section.Cooper Qu5-0/+14
bfd * elf32-csky.c (csky_archs): Fix arch names. (csky_find_arch_with_name): New. (elf32_csky_merge_attributes): New. (csky_elf_merge_private_bfd_data): Add process of merge attribute section. (elf32_csky_obj_attrs_arg_type): New. (elf32_csky_obj_attrs_handle_unknown): New. (elf_backend_obj_attrs_vendor): Define. (elf_backend_obj_attrs_section): Define. (elf_backend_obj_attrs_arg_type): Define. (elf_backend_obj_attrs_section_type): Define. binutils/ * readelf.c (get_csky_section_type_name): New. (get_section_type_name): Add handler for CSKY. (display_csky_attribute): New. (process_arch_specific): Add handler for CSKY. * testsuite/binutils-all/strip-3.d: Remove .csky.attributes section. elfcpp/ * elfcpp.h (enum SHT): New enum SHT_CSKY_ATTRIBUTES. gas/ * gas/config/tc-csky.c (md_begin): Set attributes. (isa_flag): Change type to unsigned 64 bits. (struct csky_cpu_info): Likewise. (struct csky_macro_info): Likewise. (set_csky_attribute): New. * testsuite/gas/csky/802j.d: Ignore .csky.attributes section. * testsuite/gas/csky/all.d: Likewise. * testsuite/gas/csky/bsr1.d: Likewise. * testsuite/gas/csky/csky_vdsp.d: Likewise. * testsuite/gas/csky/cskyv2_all.d: Likewise. * testsuite/gas/csky/cskyv2_ck803r2.d: Likewise. * testsuite/gas/csky/cskyv2_ck860.d: Likewise. * testsuite/gas/csky/cskyv2_dsp.d: Likewise. * testsuite/gas/csky/cskyv2_elrw.d: Likewise. * testsuite/gas/csky/cskyv2_float.d: Likewise. * testsuite/gas/csky/enhance_dsp.d: Likewise. * testsuite/gas/csky/java.d: Likewise. * testsuite/gas/csky/v1_float.d: Likewise. * testsuite/gas/csky/v2_float_part1.d: Likewise. * testsuite/gas/csky/v2_float_part2.d: Likewise. * testsuite/gas/csky/v2_tls_gd.d: Likewise. * testsuite/gas/csky/v2_tls_ie.d: Likewise. * testsuite/gas/csky/v2_tls_ld.d: Likewise. * testsuite/gas/csky/v2_tls_le.d: Likewise. * testsuite/gas/elf/elf.exp: Add handler for CSKY. * testsuite/gas/elf/section2.e-csky: New. include/ * elf/csky.h (SHT_CSKY_ATTRIBUTES): Define. (Tag_CSKY_ARCH_NAME): New enum constant. (Tag_CSKY_CPU_NAME): Likewise. (Tag_CSKY_ISA_FLAGS): Likewise. (Tag_CSKY_DSP_VERSION): Likewise. (Tag_CSKY_VDSP_VERSION): Likewise. (Tag_CSKY_FPU_VERSION): Likewise. (Tag_CSKY_FPU_ABI): Likewise. (Tag_CSKY_FPU_ROUNDING): Likewise. (Tag_CSKY_FPU_DENORMAL): Likewise. (Tag_CSKY_FPU_Exception): Likewise. (Tag_CSKY_FPU_NUMBER_MODULE): Likewise. (Tag_CSKY_FPU_HARDFP): Likewise. (Tag_CSKY_MAX): Likewise. (VAL_CSKY_DSP_VERSION_EXTENSION): Likewise. (VAL_CSKY_DSP_VERSION_2): Likewise. (VAL_CSKY_VDSP_VERSION_1): Likewise. (VAL_CSKY_VDSP_VERSION_2): Likewise. (VAL_CSKY_FPU_ABI_SOFT): Likewise. (VAL_CSKY_FPU_ABI_SOFTFP): Likewise. (VAL_CSKY_FPU_ABI_HARD): Likewise. (VAL_CSKY_FPU_HARDFP_HALF): Likewise. (VAL_CSKY_FPU_HARDFP_SINGLE): Likewise. (VAL_CSKY_FPU_HARDFP_DOUBLE): Likewise. * opcode/csky.h (CSKY_ISA_VDSP_V2): Define. CSKYV1_ISA_E1: Change to long constant type. CSKYV2_ISA_E1: Likewise. CSKYV2_ISA_1E2: Likewise. CSKYV2_ISA_2E3: Likewise. CSKYV2_ISA_3E7: Likewise. CSKYV2_ISA_7E10: Likewise. CSKYV2_ISA_3E3R1: Likewise. CSKYV2_ISA_3E3R2: Likewise. CSKYV2_ISA_10E60: Likewise. CSKY_ISA_TRUST: Likewise. CSKY_ISA_CACHE: Likewise. CSKY_ISA_NVIC: Likewise. CSKY_ISA_CP: Likewise. CSKY_ISA_MP: Likewise. CSKY_ISA_MP_1E2: Likewise. CSKY_ISA_JAVA: Likewise. CSKY_ISA_MAC: Likewise. CSKY_ISA_MAC_DSP: Likewise. CSKY_ISA_DSP: Likewise. CSKY_ISA_DSP_1E2: Likewise. CSKY_ISA_DSP_ENHANCE: Likewise. CSKY_ISA_FLOAT_E1: Likewise. CSKY_ISA_FLOAT_1E2: Likewise. CSKY_ISA_FLOAT_1E3: Likewise. CSKY_ISA_FLOAT_3E4: Likewise. CSKY_ISA_VDSP: Likewise. ld/ * emulparams/cskyelf.sh: Support attribute section. * testsuite/ld-csky/tls-le-v1.d: Match .csky.attributes section. * ld/testsuite/ld-csky/tls-le.d: Likewise. * testsuite/ld-elf/non-contiguous.ld: Ignore .csky.attributes section. opcodes/ * csky-dis.c (CSKY_DEFAULT_ISA): Define. (csky_dis_info): Add member isa. (csky_find_inst_info): Skip instructions that do not belong to current CPU. (csky_get_disassembler): Get infomation from attribute section. (print_insn_csky): Set defualt ISA flag. * csky.h (CSKY_ISA_VDSP_2): Rename from CSKY_ISA_VDSP_V2. * csky-opc.h (struct csky_opcode): Change isa_flag16 and isa_flag32'type to unsigned 64 bits.
2020-08-28Fixes for testsuite failures introduced by the changes made for PR 19011.Nick Clifton2-1/+7
PR19011 bfd * cofflink.c (_bfd_coff_generic_relocate_section): Provide a value for undefined symbols which will not generate extra warning messages about truncated relocs. ld * testsuite/lib/ld-lib.exp (ld_link_defsyms): For PE based targets define the __main and ___main symbols in terms of the main symbol.
2020-08-28mingw plugin test regressions due to commit 514b4e191d5fAlan Modra2-4/+17
Fixes new failures due to image base change. PR 19011 * testsuite/ld-plugin/plugin.exp: Use modified CFLAGS throughout file. Add --image-base for pecoff.
2020-08-28RISC-V: Treat R_RISCV_CALL and R_RISCV_CALL_PLT as the same in check_relocs.Nelson Chu4-3/+10
In fact, we can treate these two relocation as the same one in the riscv_elf_check_relocs. I have heard that RISC-V lld had made this improvement, and so had GNU AARCH64, they only need R_AARCH64_CALL26 for calls rather than two seperate relocations. Beside, the following PLT issue for RISC-V 32-bit glibc seems to be fixed by applying at least this patch. <https://sourceware.org/pipermail/libc-alpha/2020-August/117214.html> I have ran the toolchain regression, and everything seems fine for now. bfd/ * elfnn-riscv.c (riscv_elf_check_relocs): Treat R_RISCV_CALL and R_RISCV_CALL_PLT as the same in the riscv_elf_check_relocs. (riscv_elf_relocate_section): Remove the R_RISCV_CALL for the unresolved reloc checks. ld/ testsuite/ld-riscv-elf/lib-nopic-01a.s: Use R_RISCV_JAL rather than R_RISCV_CALL. testsuite/ld-riscv-elf/lib-nopic-01b.d: Likewise. testsuite/ld-riscv-elf/lib-nopic-01b.s: Likewise.
2020-08-27ld/emultempl/msp430.em: Remove unused variableJozef Lawrynowicz2-3/+5
ld/ChangeLog: * emultempl/msp430.em: Remove unused variable "buf".
2020-08-27Remove commit 9fb2400ce6Nick Clifton4-81/+64
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