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2023-06-30RISC-V: Add support for the Zfa extensionChristoph Müllner16-0/+550
This patch adds support for the RISC-V Zfa extension, which introduces additional floating-point instructions: * fli (load-immediate) with pre-defined immediates * fminm/fmaxm (like fmin/fmax but with different NaN behaviour) * fround/froundmx (round to integer) * fcvtmod.w.d (Modular Convert-to-Integer) * fmv* to access high bits of FP registers in case XLEN < FLEN * fleq/fltq (quiet comparison instructions) Zfa defines its instructions in combination with the following extensions: * single-precision floating-point (F) * double-precision floating-point (D) * quad-precision floating-point (Q) * half-precision floating-point (Zfh) This patch is based on an earlier version from Tsukasa OI: https://sourceware.org/pipermail/binutils/2022-September/122939.html Most significant change to that commit is the switch from the rs1-field value to the actual floating-point value in the last operand of the fli* instructions. Everything that strtof() can parse is accepted and the '%a' printf specifier is used to output hex floating-point literals in the disassembly. The Zfa specification is frozen (and has passed public review). It is available as a chapter in "The RISC-V Instruction Set Manual: Volume 1": https://github.com/riscv/riscv-isa-manual/releases bfd/ChangeLog: * elfxx-riscv.c (riscv_multi_subset_supports): Add instruction class support for 'Zfa' extension. (riscv_multi_subset_supports_ext): Likewise. (riscv_implicit_subsets): Add 'Zfa' -> 'F' dependency. gas/ChangeLog: * config/tc-riscv.c (flt_lookup): New helper to lookup a float value in an array. (validate_riscv_insn): Add 'Wfv' as new format string directive. (riscv_ip): Likewise. * doc/c-riscv.texi: Add floating-point chapter and describe limiations of the Zfa FP literal parsing. * testsuite/gas/riscv/zfa-32.d: New test. * testsuite/gas/riscv/zfa-32.s: New test. * testsuite/gas/riscv/zfa-64.d: New test. * testsuite/gas/riscv/zfa-64.s: New test. * testsuite/gas/riscv/zfa-fail.d: New test. * testsuite/gas/riscv/zfa-fail.l: New test. * testsuite/gas/riscv/zfa-fail.s: New test. * testsuite/gas/riscv/zfa.d: New test. * testsuite/gas/riscv/zfa.s: New test. * testsuite/gas/riscv/zfa.s: New test. * opcode/riscv-opc.h (MATCH_FLI_H): New. (MASK_FLI_H): New. (MATCH_FMINM_H): New. (MASK_FMINM_H): New. (MATCH_FMAXM_H): New. (MASK_FMAXM_H): New. (MATCH_FROUND_H): New. (MASK_FROUND_H): New. (MATCH_FROUNDNX_H): New. (MASK_FROUNDNX_H): New. (MATCH_FLTQ_H): New. (MASK_FLTQ_H): New. (MATCH_FLEQ_H): New. (MASK_FLEQ_H): New. (MATCH_FLI_S): New. (MASK_FLI_S): New. (MATCH_FMINM_S): New. (MASK_FMINM_S): New. (MATCH_FMAXM_S): New. (MASK_FMAXM_S): New. (MATCH_FROUND_S): New. (MASK_FROUND_S): New. (MATCH_FROUNDNX_S): New. (MASK_FROUNDNX_S): New. (MATCH_FLTQ_S): New. (MASK_FLTQ_S): New. (MATCH_FLEQ_S): New. (MASK_FLEQ_S): New. (MATCH_FLI_D): New. (MASK_FLI_D): New. (MATCH_FMINM_D): New. (MASK_FMINM_D): New. (MATCH_FMAXM_D): New. (MASK_FMAXM_D): New. (MATCH_FROUND_D): New. (MASK_FROUND_D): New. (MATCH_FROUNDNX_D): New. (MASK_FROUNDNX_D): New. (MATCH_FLTQ_D): New. (MASK_FLTQ_D): New. (MATCH_FLEQ_D): New. (MASK_FLEQ_D): New. (MATCH_FLI_Q): New. (MASK_FLI_Q): New. (MATCH_FMINM_Q): New. (MASK_FMINM_Q): New. (MATCH_FMAXM_Q): New. (MASK_FMAXM_Q): New. (MATCH_FROUND_Q): New. (MASK_FROUND_Q): New. (MATCH_FROUNDNX_Q): New. (MASK_FROUNDNX_Q): New. (MATCH_FLTQ_Q): New. (MASK_FLTQ_Q): New. (MATCH_FLEQ_Q): New. (MASK_FLEQ_Q): New. (MATCH_FCVTMOD_W_D): New. (MASK_FCVTMOD_W_D): New. (MATCH_FMVH_X_D): New. (MASK_FMVH_X_D): New. (MATCH_FMVH_X_Q): New. (MASK_FMVH_X_Q): New. (MATCH_FMVP_D_X): New. (MASK_FMVP_D_X): New. (MATCH_FMVP_Q_X): New. (MASK_FMVP_Q_X): New. (DECLARE_INSN): New. * opcode/riscv.h (enum riscv_insn_class): Add instruction classes for the Zfa extension. opcodes/ChangeLog: * riscv-dis.c (print_insn_args): Add support for new format string directive 'Wfv'. * riscv-opc.c: Add Zfa instructions. Co-Developed-by: Tsukasa OI <research_trasio@irq.a4lg.com> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Co-Developed-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-06-30strings: Improve code to detect excessively large minimum string lengths.Nick Clifton2-18/+37
PR 30598 * strings.c (set_string_min): New function. (main): Use it. (print_unicode_stream): Calculate buffer size using a size_t.
2023-06-30Prevent an illegal memory access when running the strings program with an ↵Nick Clifton2-0/+12
excessively lerge minimum string length. PR 30595 * strings.c (main): Check for an excessively large minimum string length.
2023-06-30Fix used-before-initialized warnings when compiling elf.c with Clang-16.Nick Clifton1-2/+4
2023-06-30LoongArch: gas: Fix code style issuesmengqinggang1-1682/+1681
Blocks of 8 spaces be replaced with tabs. Fix alignment issues.
2023-06-30LoongArch: gas: Add LVZ and LBT instructions supportmengqinggang7-28/+608
gas/ChangeLog: * config/tc-loongarch.c (md_parse_option): Add LARCH_opts.ase_lvz and LARCH_opts.ase_lbt. * testsuite/gas/loongarch/uleb128.d: Regenerated. * testsuite/gas/loongarch/lvz-lbt.d: New test. * testsuite/gas/loongarch/lvz-lbt.s: New test. include/ChangeLog: * opcode/loongarch.h (ase_lvz): New. (ase_lbt): New. opcodes/ChangeLog: * loongarch-dis.c (set_default_loongarch_dis_options): Add LARCH_opts.ase_lvz and LARCH_opts.ase_lbt. * loongarch-opc.c (struct loongarch_ase): Add LVZ and LBT instructions.
2023-06-30LoongArch: Deprecate $v[01], $fv[01] and $x names per specWANG Xuerui6-11/+73
As outlined in the LoongArch ELF psABI spec [1], it is actually already 2 versions after the initial LoongArch support, and the $v[01] and $fv[01] names should really get sunset by now. In addition, the "$x" name for $r21 was never included in any released version of the ABI spec, and such usages are all fixed to say just $r21 for every project I could think of that accepted a LoongArch port. Plus, the upcoming LSX/LASX support makes use of registers named "$vrNN" and "$xrNN", so having "$vN" and "$x" alongside would almost certainly create confusion for developers. Issue warnings for such usages per the deprecation procedure detailed in the spec, so we can finally remove support in the next release cycle after this. [1]: https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html gas/ChangeLog: * config/tc-loongarch.c: Init canonical register ABI name mappings and deprecated register names. (loongarch_args_parser_can_match_arg_helper): Warn in case of deprecated register name usage. * testsuite/gas/loongarch/deprecated_reg_aliases.d: New test. * testsuite/gas/loongarch/deprecated_reg_aliases.l: Likewise. * testsuite/gas/loongarch/deprecated_reg_aliases.s: Likewise. include/ChangeLog: * opcode/loongarch.h: Rename global variables. opcodes/ChangeLog: * loongarch-opc.c: Rename the alternate/deprecated register name mappings, and move $x to the deprecated name map. Signed-off-by: WANG Xuerui <git@xen0n.name>
2023-06-30opcodes/loongarch: print unrecognized insn words with the .word directiveWANG Xuerui4-10/+29
For better round-trip fidelity and readability in general. gas/ChangeLog: * testsuite/gas/loongarch/uleb128.d: Update test case. * testsuite/gas/loongarch/raw-insn.d: New test. * testsuite/gas/loongarch/raw-insn.s: Likewise. opcodes/ChangeLog: * loongarch-dis.c (disassemble_one): Print ".word" if !opc. Signed-off-by: WANG Xuerui <git@xen0n.name>
2023-06-30opcodes/loongarch: do not print hex notation for signed immediatesWANG Xuerui14-257/+251
The additional hex notation was minimally useful when one had to inspect code with heavy bit manipulation, or of unclear signedness, but it clutters the output, and the style is not regular assembly language syntax either. Precisely how one approaches the original use case is not taken care of in this patch (maybe we want a disassembler option forcing a certain style for immediates, like for example printing every immediate in decimal or hexadecimal notation), but at least let's stop the current practice. ChangeLog: * testsuite/gas/loongarch/imm_ins.d: Update test case. * testsuite/gas/loongarch/imm_ins_32.d: Likewise. * testsuite/gas/loongarch/imm_op.d: Likewise. * testsuite/gas/loongarch/jmp_op.d: Likewise. * testsuite/gas/loongarch/load_store_op.d: Likewise. * testsuite/gas/loongarch/macro_op.d: Likewise. * testsuite/gas/loongarch/macro_op_32.d: Likewise. * testsuite/gas/loongarch/privilege_op.d: Likewise. * testsuite/gas/loongarch/uleb128.d: Likewise. * testsuite/gas/loongarch/vector.d: Likewise. ld/ChangeLog: * testsuite/ld-loongarch-elf/jmp_op.d: Update test case. * testsuite/ld-loongarch-elf/macro_op.d: Likewise. * testsuite/ld-loongarch-elf/macro_op_32.d: Likewise. opcodes/ChangeLog: * loongarch-dis.c (dis_one_arg): Remove the "(0x%x)" part from disassembly output of signed immediate operands. Signed-off-by: WANG Xuerui <git@xen0n.name>
2023-06-30opcodes/loongarch: style disassembled address offsets as suchWANG Xuerui2-28/+41
Add a modifier char 'o' telling the disassembler to print the immediate using the address offset style, and mark the memory access instructions' offset operands as such. opcodes/ChangeLog: * loongarch-dis.c (dis_one_arg): Style disassembled address offsets as such when the operand has a modifier char 'o'. * loongarch-opc.c: Add 'o' to operands that represent address offsets. Signed-off-by: WANG Xuerui <git@xen0n.name>
2023-06-30opcodes/loongarch: implement style support in the disassemblerWANG Xuerui2-23/+27
Update the LoongArch disassembler to supply style information to the disassembler output. The output formatting remains unchanged. opcodes/ChangeLog: * disassemble.c: Mark LoongArch as created_styled_output=true. * loongarch-dis.c (dis_one_arg): Use fprintf_styled_func throughout with proper styles. Signed-off-by: WANG Xuerui <git@xen0n.name>
2023-06-30opcodes/loongarch: remove unused codeWANG Xuerui2-40/+0
Remove some unused declarations and code. include/ChangeLog: * opcode/loongarch.h: Remove unused declarations. opcodes/ChangeLog: * loongarch-dis.c (loongarch_parse_dis_options): Remove. (my_print_address_func): Likewise. (loongarch_disassemble_one): Likewise. Signed-off-by: WANG Xuerui <git@xen0n.name>
2023-06-30LoongArch: support disassembling certain pseudo-instructionsWANG Xuerui20-64/+94
Add a flag in the pinfo field for being able to mark certain specialized matchers as disassembler-only, so some degree of isolation between assembler-side and disassembler-side can be achieved. This isolation is necessary, firstly because some pseudo-instructions cannot be fully described in the opcode table, like `li.[wd]`, so the corresponding opcode entry cannot have meaningful match/mask values. Secondly, some of these pseudo-instructions can be realized in more than one plausible ways; e.g. `li.w rd, <something between 0 and 0x7ff>` can be realized on LA64 with any of `addi.w`, `addi.d` or `ori`. If we tie disassembly of such aliases with the corresponding GAS support, only one canonical form among the above would be recognized as `li.w`, and it would mildly impact the readability of disassembly output. People wanting the exact disassembly can always set `-M no-aliases` to get the original behavior back. In addition, in certain cases, information is irreversibly lost after assembling, so perfect round-trip would not be possible in such cases. For example, `li.w` and `li.d` of immediates within int32_t range produce the same code; in this patch, `addi.d rd, $zero, imm` is treated as `li.d`, while `addi.w` and `ori` immediate loads are shown as `li.w`, due to the expressible value range well within 32 bits. gas/ChangeLog: * config/tc-loongarch.c (get_loongarch_opcode): Ignore disassembler-only aliases. * testsuite/gas/loongarch/64_pcrel.d: Update test case. * testsuite/gas/loongarch/imm_ins.d: Likewise. * testsuite/gas/loongarch/imm_ins_32.d: Likewise. * testsuite/gas/loongarch/jmp_op.d: Likewise. * testsuite/gas/loongarch/li.d: Likewise. * testsuite/gas/loongarch/macro_op.d: Likewise. * testsuite/gas/loongarch/macro_op_32.d: Likewise. * testsuite/gas/loongarch/macro_op_large_abs.d: Likewise. * testsuite/gas/loongarch/macro_op_large_pc.d: Likewise. * testsuite/gas/loongarch/nop.d: Likewise. * testsuite/gas/loongarch/relax_align.d: Likewise. * testsuite/gas/loongarch/reloc.d: Likewise. include/ChangeLog: * opcode/loongarch.h (INSN_DIS_ALIAS): Add. ld/ChangeLog: * testsuite/ld-loongarch-elf/jmp_op.d: Update test case. * testsuite/ld-loongarch-elf/macro_op.d: Likewise. * testsuite/ld-loongarch-elf/macro_op_32.d: Likewise. * testsuite/ld-loongarch-elf/relax-align.dd: Likewise. opcodes/ChangeLog: * loongarch-dis.c: Move register name map declarations to top. (get_loongarch_opcode_by_binfmt): Consider aliases when disassembling without the no-aliases option. (parse_loongarch_dis_option): Support the no-aliases option. * loongarch-opc.c: Collect pseudo instructions into a new dedicated table. Signed-off-by: WANG Xuerui <git@xen0n.name>
2023-06-30Automatic date update in version.inGDB Administrator1-1/+1
2023-06-29binutils/NEWS: announce SFrame version 2 as the new defaultIndu Bhagat1-0/+3
2023-06-29doc: sframe: update specification for SFRAME_VERSION_2Indu Bhagat1-10/+74
Add details for the changes made from Version 1 to Version 2 of the format. Also add details about alignment in the SFrame format. A portion of the SFrame stack trace format has an unaligned on-disk representation. Add description at relevant points in the specificatin to clarify the alignment related details.
2023-06-29sframe: bfd: gas: ld: format bump to SFrame version 2Indu Bhagat30-64/+191
SFrame version 2 encodes the size of repetitive insn block explicitly in the format. Add information in the SFrame FDE to convey the size of the block of repeating instructions. This information is used only for SFrame FDEs of type SFRAME_FDE_TYPE_PCMASK. Introduce two extra bytes for padding: this ensures that the memory accesses to the members of the SFrame Frame Descriptor Entry (FDE) are naturally aligned. gas generates SFrame section with version SFRAME_VERSION_2 by default. libsframe provides two new APIs to: - get an SFrame FDE data from the decoder context, and - add an SFrame FDE to the encoder context. The additional argument (for rep_block_size) is useful for SFrame FDEs where FDE type is SFRAME_FDE_TYPE_PCMASK. The linker will generate the output SFrame sections in the SFRAME_VERSION_2 format. If the input sections offered to the linker are not all in the SFRAME_VERSION_2 format, the linker issues an error to the user. objdump/readelf will show the following message to the user if .sframe section in SFRAME_VERSION_1 format is seen: "No further information can be displayed. SFrame version not supported." In other words, like the rest of the binutils, only the current SFrame format version, i.e., SFRAME_VERSION_2 is supported by the textual dump facilities. bfd/ * elf-sframe.c (_bfd_elf_merge_section_sframe): Generate an output SFrame section with version SFRAME_VERSION_2. Also, error out if the SFrame sections do not all have SFRAME_VERSION_2. * elfxx-x86.c (_bfd_x86_elf_create_sframe_plt): Generate SFrame section for plt entries with version SFRAME_VERSION_2. gas/ * gen-sframe.c (sframe_set_version): Update to SFRAME_VERSION_2. (output_sframe): Likewise. gas/testsuite/ * gas/cfi-sframe/cfi-sframe-aarch64-1.d: Use SFRAME_VERSION_2. * gas/cfi-sframe/cfi-sframe-aarch64-2.d: Likewise. * gas/cfi-sframe/cfi-sframe-aarch64-pac-ab-key-1.d: Likewise. * gas/cfi-sframe/cfi-sframe-common-1.d: Likewise. * gas/cfi-sframe/cfi-sframe-common-2.d: Likewise. * gas/cfi-sframe/cfi-sframe-common-3.d: Likewise. * gas/cfi-sframe/cfi-sframe-common-4.d: Likewise. * gas/cfi-sframe/cfi-sframe-common-5.d: Likewise. * gas/cfi-sframe/cfi-sframe-common-6.d: Likewise. * gas/cfi-sframe/cfi-sframe-common-7.d: Likewise. * gas/cfi-sframe/cfi-sframe-common-8.d: Likewise. * gas/cfi-sframe/cfi-sframe-x86_64-1.d: Likewise. * gas/cfi-sframe/common-empty-1.d: Likewise. * gas/cfi-sframe/common-empty-2.d: Likewise. * gas/cfi-sframe/common-empty-3.d: Likewise. ld/testsuite/ * ld-aarch64/sframe-simple-1.d: Adjust for SFRAME_VERSION_2. * ld-x86-64/sframe-plt-1.d: Likewise. * ld-x86-64/sframe-simple-1.d: Likewise. libsframe/ * libsframe.ver: Add the new APIs. * sframe.c (sframe_decoder_get_funcdesc_v2): New definition. (sframe_encoder_add_funcdesc_v2): Likewise. (sframe_header_sanity_check_p): Include SFRAME_VERSION_2. (sframe_fre_check_range_p): Get rep_block_size info from SFrame FDE. * sframe-dump.c (dump_sframe_header): Add support for SFRAME_VERSION_2. (dump_sframe): Inform user if SFrame section in SFRAME_VERSION_1 format is seen. libsframe/testsuite/ * libsframe.decode/DATA-BE: Regenerated data file. * libsframe.decode/DATA1: Likewise. * libsframe.decode/DATA2: Likewise. * libsframe.find/plt-findfre-1.c: Use new API in the testcase. include/ * sframe.h: Add member to encode size of the code block of repeating instructions. Add 2 bytes of padding. * sframe-api.h (sframe_decoder_get_funcdesc_v2): New declaration. (sframe_encoder_add_funcdesc_v2): Likewise.
2023-06-29libsframe: add new APIs to get SFrame versionIndu Bhagat3-0/+30
While the SFrame preamble is guaranteed to not change between versions, providing these access APIs from the SFrame decoder and encoder APIs is for convenience only. The linker may want to use these APIs as the format evolves. include/ * sframe-api.h (sframe_decoder_get_version): New declaration. (sframe_encoder_get_version): Likewise. libsframe/ * libsframe/libsframe.ver: Add new APIs. * libsframe/sframe.c (sframe_decoder_get_version): New definition. (sframe_encoder_get_version): Likewise.
2023-06-29libsframe: fix sframe_find_fre for pltN entriesIndu Bhagat3-26/+62
For a toy application on x86_64, for example, following is the SFrame stack trace information for the 3 pltN entries of 16 bytes each: func idx [1]: pc = 0x401030, size = 48 bytes STARTPC[m] CFA FP RA 0000000000000000 sp+8 u u 000000000000000b sp+16 u u The data in first column is the start_ip_offset. Also note that the FDE is of type SFRAME_FDE_TYPE_PCMASK (denoted by the [m] on LHS). Where each pltN (note: excluding plt0 entry) entry looks like: 401030: jmp *0x2fca(%rip) 401036: push $0x0 40103b: jmp 401020<_init+0x20> 401040: jmp *0x2fc2(%rip) 401046: push $0x1 40104b: jmp 401020<_init+0x20> 401050: jmp *0x2fba(%rip) 401056: push $0x2 40105b: jmp 401020<_init+0x20> Now, to find SFrame stack trace information from an FDE of type SFRAME_FDE_TYPE_PCMASK, sframe_find_fre () was doing an operation like, (start_ip_offset & 0xf) >= (pc & 0xf) This works for pltN entry of size, say, less than 16 bytes. But if the pltN entries or similar code stubs (for which SFrame FDE of type SFRAME_FDE_TYPE_PCMASK may be used), evolve to be of size > 16 bytes, this will cease to work. To match the range covered by the SFrame FRE, one should instead perform a modulo operation. The constant for the modulo operation must be the size of the pltN entry. Further, this constant should ideally be encoded in the format, as it may be different for each ABI. In SFrame Version 2 of the format, we will move towards encoding it explicitly in the SFrame FDE. For now, fix up the logic to at least move towards modulo operation. libsframe/ * sframe.c (sframe_fre_check_range_p): New definition. (sframe_find_fre): Refactor a bit and use the new definition above. include/ * sframe.h (SFRAME_FDE_TYPE_PCMASK): Update comment. libsframe/doc/ * sframe-spec.texi: Fix the text for SFRAME_FDE_TYPE_PCMASK FDE type.
2023-06-29ld: Add -z nosectionheader test to bootstrap.expH.J. Lu1-2/+8
PR ld/25617 * testsuite/ld-bootstrap/bootstrap.exp: Add -z nosectionheader test.
2023-06-29ld: Add tests for -z nosectionheader and --strip-section-headersH.J. Lu14-0/+559
Add tests to verify that the linker option, -z nosectionheader and objcopy and strip option, --strip-section-headers, work correctly as well as linker issues an error when dynamic symbol table from PT_DYNAMIC segment is used. PR ld/25617 * testsuite/ld-elf/hash-2.d: New file. * testsuite/ld-elf/no-section-header.exp: Likewise. * testsuite/ld-elf/pr25617-1-no-sec-hdr.nd: Likewise. * testsuite/ld-elf/pr25617-1-no-sec-hdr.rd: Likewise. * testsuite/ld-elf/pr25617-1-static-no-sec-hdr.rd: Likewise. * testsuite/ld-elf/pr25617-1a-no-sec-hdr.nd: Likewise. * testsuite/ld-elf/pr25617-1a-no-sec-hdr.rd: Likewise. * testsuite/ld-elf/pr25617-1a-sec-hdr.rd: Likewise. * testsuite/ld-elf/pr25617-1a.c: Likewise. * testsuite/ld-elf/pr25617-1b.c: Likewise. * testsuite/ld-elf/start-noheader.rd: Likewise. * testsuite/ld-elf/start-shared-noheader-gnu.rd: Likewise. * testsuite/ld-elf/start-shared-noheader-sysv.rd: Likewise. * testsuite/ld-elf/start-shared-noheader.nd: Likewise.
2023-06-29binutils: Add a --strip-section-headers testH.J. Lu2-0/+10
PR ld/25617 * testsuite/binutils-all/objcopy.exp: Run strip-section-headers-1. * testsuite/binutils-all/strip-section-headers-1.d: New file.
2023-06-29ld: Add simple tests for -z nosectionheaderKaylee Blake2-0/+18
2020-06-06 Kaylee Blake <klkblake@gmail.com> H.J. Lu <hongjiu.lu@intel.com> PR ld/25617 * testsuite/ld-elf/nosectionheader-1.d: New file. * testsuite/ld-elf/nosectionheader-2.d: Likewise.
2023-06-29bfd: Improve nm and objdump without section headerH.J. Lu4-65/+746
When there is no section header in an executable or shared library, we reconstruct dynamic symbol table from the PT_DYNAMIC segment, which contains DT_HASH/DT_GNU_HASH/DT_MIPS_XHASH, DT_STRTAB, DT_SYMTAB, DT_STRSZ, and DT_SYMENT entries, to improve nm and objdump. For DT_HASH, the number of dynamic symbol table entries equals the number of chains. For DT_GNU_HASH/DT_MIPS_XHASH, only defined symbols with non-STB_LOCAL indings are in hash table. Since DT_GNU_HASH/DT_MIPS_XHASH place all symbols with STB_LOCAL binding before symbols with other bindings and all undefined symbols defined ones in dynamic symbol table, the highest symbol index in DT_GNU_HASH/DT_MIPS_XHASH is the highest dynamic symbol table index. We can also get symbol version from DT_VERSYM, DT_VERDEF and DT_VERNEED entries. dt_symtab, dt_versym, dt_verdef, dt_verneed, dt_symtab_count, dt_verdef_count, dt_verneed_count and dt_strtab are added to elf_obj_tdata to store dynamic symbol table information. PR ld/25617 * elf-bfd.h (elf_obj_tdata): Add dt_symtab, dt_verdef, dt_verneed, dt_symtab_count, dt_verdef_count, dt_verneed_count and dt_strtab. (elf_use_dt_symtab_p): New. (_bfd_elf_get_dynamic_symbols): Likewise. (_bfd_elf_get_section_from_dynamic_symbol): Likewise. * elf.c (bfd_elf_get_elf_syms): Use dynamic symbol table if neeeded. (_bfd_elf_get_dynamic_symtab_upper_bound): Likewise. (_bfd_elf_slurp_version_tables): Likewise. (offset_from_vma): New function. (get_hash_table_data): Likewise. (_bfd_elf_get_dynamic_symbols): Likewise. (_bfd_elf_get_section_from_dynamic_symbol): Likewise. (_bfd_elf_get_symbol_version_name): Likewise. * elfcode.h (elf_object_p): Call _bfd_elf_get_dynamic_symbols to reconstruct dynamic symbol table from PT_DYNAMIC segment if there is no section header. (elf_slurp_symbol_table): Use dynamic symbol table if neeeded. Don't free isymbuf when dynamic symbol table is used. * elflink.c (elf_link_is_defined_archive_symbol): Return wrong format error when dynamic symbol table is used. (elf_link_add_object_symbols): Likewise.
2023-06-29ELF: Discard non-alloc sections without section headerH.J. Lu3-4/+20
Discard non-alloc sections when section headers are stripped. bfd/ PR ld/25617 * elf.c (_bfd_elf_assign_file_positions_for_non_load): Skip non-load sections without section header. (_bfd_elf_write_object_contents): Don't set the sh_name field without section header. Write out the .shstrtab section only if its sh_offset field isn't -1. binutils/ PR ld/25617 * objcopy.c (is_strip_section_1): Remove non-alloc sections for --strip-section-headers. ld/ PR ld/25617 * ldlang.c (lang_discard_section_p): Discard non-alloc sections if we are stripping section headers.
2023-06-29ELF: Strip section header in ELF objectsKaylee Blake13-16/+114
Section header isn't mandatory on ELF executable nor shared library. This patch adds a new linker option, -z nosectionheader, to omit ELF section header, a new objcopy and strip option, --strip-section-headers, to remove ELF section headers. bfd/ 2023-06-06 H.J. Lu <hongjiu.lu@intel.com> Kaylee Blake <klkblake@gmail.com> PR ld/25617 * bfd.c (BFD_NO_SECTION_HEADER): New. (BFD_FLAGS_SAVED): Add BFD_NO_SECTION_HEADER. (BFD_FLAGS_FOR_BFD_USE_MASK): Likewise. * elfcode.h (elf_swap_ehdr_out): Omit section header with BFD_NO_SECTION_HEADER. (elf_write_shdrs_and_ehdr): Likewise. * elfxx-target.h (TARGET_BIG_SYM): Add BFD_NO_SECTION_HEADER to object_flags. (TARGET_LITTLE_SYM): Likewise. * bfd-in2.h: Regenerated. binutils/ 2023-06-06 H.J. Lu <hongjiu.lu@intel.com> PR ld/25617 * NEWS: Mention --strip-section-headers for objcopy and strip. * objcopy.c (strip_section_headers): New. (command_line_switch): Add OPTION_STRIP_SECTION_HEADERS. (strip_options): Add --strip-section-headers. (copy_options): Likewise. (copy_usage): Add --strip-section-headers. (strip_usage): Likewise. (copy_object): Handle --strip-section-headers for ELF files. (strip_main): Handle OPTION_STRIP_SECTION_HEADERS. (copy_main): Likewise. * doc/binutils.texi: Document --strip-section-headers for objcopy and strip. ld/ 2023-06-06 H.J. Lu <hongjiu.lu@intel.com> Kaylee Blake <klkblake@gmail.com> PR ld/25617 * NEWS: Mention -z nosectionheader. * emultempl/elf.em: Support -z sectionheader and -z nosectionheader. * ld.h (ld_config_type): Add no_section_header. * ld.texi: Document -z sectionheader and -z nosectionheader. * ldlang.c (ldlang_open_output): Handle config.no_section_header. * lexsup.c (parse_args): Enable --strip-all with -z nosectionheader. Disallow -r with -z nosectionheader. (elf_static_list_options): Add -z sectionheader and -z nosectionheader.
2023-06-29Ignore --prefix-file-map compiler option whist running testsuite.Matthias Klose4-6/+6
2023-06-29ignore lto-wrapper warnings for lto builds.Matthias Klose1-0/+3
I see these warnings from time to time, when configuring a build with --enable-pgo-build=lto, I haven't yet found out why I see these sometime, and why not. E.g. https://gcc.gnu.org/PR109241. Just ignore these when they appear in test cases. lto-wrapper: warning: using serial compilation of N LTRANS jobs
2023-06-29Automatic date update in version.inGDB Administrator1-1/+1
2023-06-28gprofng: Add new testsVladimir Mezentsev6-0/+238
gprofng/ChangeLog 2023-06-26 Vladimir Mezentsev <vladimir.mezentsev@oracle.com> * Makefile.am: Pass CLOCK_GETTIME_LINK to the testsuite * Makefile.in: Rebuild. * testsuite/gprofng.display/gp-archive.exp: New file. * testsuite/gprofng.display/gp-collect-app_F.exp: New file. * testsuite/gprofng.display/setpath_map.exp: New file. * testsuite/lib/smalltest.c: New file.
2023-06-28aarch64: Remove version dependencies from featuresAndrew Carlotti13-28/+31
Many instructions were enabled only when both a feature flag and a minimum architecture version are specified. This behaviour differs from GCC, which (in most cases) allows features to be enabled at any architecture version. There is no need for the toolchain to restrict combinations of unrelated features in this way, so this patch removes the unnecessary dependencies.
2023-06-28Remove Python 2 from gdb documentationTom Tromey1-15/+8
GDB can't be built using Python 2 any more, so remove the remaining vestiges of this from the documentation. Approved-By: Eli Zaretskii <eliz@gnu.org>
2023-06-28section-match: Check parent archive name as wellMichael Matz1-2/+13
rewriting the section matching routines lost a special case of matching: section statements of the form NAME(section-glob) normally match against NAME being an object file, but like in the exclude list we happened to accept archive names as NAME (undocumented). The documented way to specify (all) archive members is by using e.g. lib.a:(section-glob) (that does work also with the prefix tree matcher). But I intended to not actually change behaviour with the prefix tree implementation. So, let's also implement checking against archive names with a similar FIXME comment we already have in walk_wild_file_in_exclude_list. PR 30590 ld/ * ldlang.c (walk_wild_section_match): Also look at archive parents for a name match.
2023-06-28Fix handling of DW_TAG_unspecified_type for AdaTom Tromey2-1/+9
Commit 80eaec735e ("[gdb/symtab] Handle named DW_TAG_unspecified_type DIE") changed the handling of DW_TAG_unspecified_type. Before this change, such types were not entered into the symbol table. It turns out that, when such a type is in the symtab, it can cause failures in Ada. In particular, a private type in another package may be seen locally as "void". Now, it would probably be better to fix this via check_typedef. However, that is somewhat difficult given the state of the DWARF reader -- in particular with gdb_index, this would require expanding potentially many CUs to find the correct type. Instead, this patch changes gdb to not enter a symbol for an unspecified type -- but only for Ada.
2023-06-28Remove some Python 2 codeTom Tromey2-13/+3
I found some Python 2 compatibility code in gdb's Python library. There's no need for this any more, so this removes it. There is still a bit more of this remaining in __init__.py, but I haven't tried removing that yet. Reviewed-By: Bruno Larsen <blarsen@redhat.com>
2023-06-28Stop the linker's --dependency-file option from including temporary lto files.Nick Clifton2-1/+10
PR 30568 * ldfile.c (ldfile_try_open_bfd): Do not track lto generated temporary files.
2023-06-28Updated French translation for the gold sub-directoryNick Clifton2-338/+359
2023-06-28LoongArch: gas: Add LSX and LASX instructions testmengqinggang2-0/+2912
gas/ChangeLog: * testsuite/gas/loongarch/vector.d: New test. * testsuite/gas/loongarch/vector.s: New test.
2023-06-28LoongArch: gas: Add lsx and lasx instructions supportmengqinggang2-0/+1469
gas/ChangeLog: * config/tc-loongarch.c (md_parse_option): Add lsx and lasx option. (loongarch_after_parse_args): Add lsx and lasx option. opcodes/ChangeLog: * loongarch-opc.c (struct loongarch_ase): Add lsx and lasx instructions.
2023-06-28LoongArch: Add R_LARCH_64_PCREL relocation supportmengqinggang12-3/+72
Gas defaults to emit R_LARCH_ADD64/R_LARCH_SUB64 unless explcitly declared to emit R_LARCH_64_PCREL. The LoongArch ABI at here: https://github.com/loongson/la-abi-specs/blob/release/la-abi.adoc bfd/ChangeLog: * bfd-in2.h (not): Add R_LARCH_64_PCREL * elfnn-loongarch.c (perform_relocation): Likewise. * elfxx-loongarch.c: Likewise. * libbfd.h: Likewise. * reloc.c: Likewise. gas/ChangeLog: * config/tc-loongarch.c (loongarch_args_parser_can_match_arg_helper): (md_apply_fix): Add R_LARCH_64_PCREL. * testsuite/gas/loongarch/64_pcrel.d: New test. * testsuite/gas/loongarch/64_pcrel.s: New test. include/ChangeLog: * elf/loongarch.h (RELOC_NUMBER): Add R_LARCH_64_PCREL. ld/ChangeLog: * testsuite/ld-loongarch-elf/ld-loongarch-elf.exp: Add test. * testsuite/ld-loongarch-elf/64_pcrel.d: New test. * testsuite/ld-loongarch-elf/64_pcrel.s: New test.
2023-06-28Automatic date update in version.inGDB Administrator1-1/+1
2023-06-27binutils/NEWS: add note about upcoming libsframe changesIndu Bhagat1-0/+6
Some of these changes update the ABI in an incompatible way.
2023-06-27libsframe: bfd: use uint32_t for return type of get_num_fidx APIsIndu Bhagat3-10/+10
Keep the data types usage in libsframe look consistent. bfd/ * elf-sframe.c (_bfd_elf_merge_section_sframe): Use uint32_t type alias. * libsframe/sframe.c (sframe_decoder_get_funcdesc_at_index): Likewise. (sframe_decoder_get_num_fidx): Likewise. (sframe_encoder_get_num_fidx): Likewise. include/ * sframe-api.h (sframe_decoder_get_num_fidx): Likewise. (sframe_encoder_get_num_fidx): Likewise.
2023-06-27libsframe: use appropriate data types for args of sframe_encodeIndu Bhagat2-3/+4
include/ * sframe-api.h (sframe_encode): Use of uint8_t is more appropriate. libsframe/ * sframe.c (sframe_encode): Likewise.
2023-06-27libsframe: use uint8_t for return type of sframe_fre_get_base_reg_idIndu Bhagat3-3/+3
Use a more appropriate data type. include/ * sframe-api.h (sframe_fre_get_base_reg_id): Use uint8_t as return type. libsframe/ * sframe-dump.c (dump_sframe_func_with_fres): Use uint8_t type for base reg id. * sframe.c (sframe_fre_get_base_reg_id): Use uin8_t as return type.
2023-06-27libsframe: use uint8_t instead of unsigned char for abi_archIndu Bhagat4-12/+12
Use uint8_t consistently for identifying ABI/arch in SFrame format. bfd/ * elf-sframe.c (_bfd_elf_merge_section_sframe): libsframe/ * sframe-dump.c (is_sframe_abi_arch_aarch64): Use uint8_t for local variable. * sframe.c (sframe_decoder_get_abi_arch): Update return type to uint8_t. (sframe_encoder_get_abi_arch): Likewise. include/ * sframe-api.h (sframe_decoder_get_abi_arch): Likewise. (sframe_encoder_get_abi_arch): Likewise.
2023-06-27libsframe: bfd: use uint32_t for return type of sframe_calc_fre_typeIndu Bhagat3-3/+3
Use uint32_t type alias consistently for all APIs in libsframe. bfd/ * elfxx-x86.c (_bfd_x86_elf_create_sframe_plt): Adjust for the changed return type. libsframe/ * sframe.c (sframe_calc_fre_type): Use uint32_t for return type. include/ * sframe-api.h (sframe_calc_fre_type): Likewise.
2023-06-27libsframe: use uint32_t for fre_type and fde_type function argsIndu Bhagat2-22/+22
The API sframe_fde_create_func_info is provided by libsframe. Current users are the bfd linker. Adjust the argument type for the variables carrying the SFrame FRE type and SFrame FDE type to consistenly use uint32_t type alias. include/ * sframe-api.h (sframe_fde_create_func_info): Use uint32_t instead of unsigned int. libsframe/ * sframe.c (sframe_get_fre_type): Likewise. (sframe_get_fde_type): Likewise. (flip_fre_start_address): Likewise. (sframe_fre_start_addr_size): Likewise. (sframe_fre_entry_size): Likewise. (flip_fre): Likewise. (flip_sframe): Likewise. (sframe_fde_create_func_info): Likewise. (sframe_calc_fre_type): Likewise. (sframe_decode_fre_start_address): Likewise. (sframe_decode_fre): Likewise. (sframe_find_fre): Likewise. (sframe_decoder_get_fre): Likewise. (sframe_encoder_add_fre): Likewise. (sframe_encoder_write_fre_start_addr): Likewise. (sframe_encoder_write_fre): Likewise. (sframe_encoder_write_sframe): Likewise.
2023-06-27libsframe: update the semantics of sframe_fre_get_fp_offsetIndu Bhagat1-6/+11
Until now, sframe_fre_get_fp_offset () would return SFRAME_ERR_FREOFFSET_NOPRESENT if the ABI uses fixed FP offset. A stack tracer, then, would call an explicit sframe_decoder_get_fixed_fp_offset () to get the FP offset. On second look, it appears to make sense to hide these details of whether the FP offset is fixed or not in an ABI from the consumer. Now, with the changed semantics, the call to sframe_fre_get_fp_offset () will fetch the fixed FP offset if applicable, or get the FP offset from FRE when there is no fixed FP offset. This patch changes the behavior of sframe_fre_get_fp_offset (): it turns an error into non-error. This change will be included with the next release of libsframe, where all the exposed symbols will be versioned with version node LIBSFRAME_1.0 for the first time. libsframe/ * sframe.c (sframe_fre_get_fp_offset): Return the fixed offset, if applicable. Else return the FP offset from the FRE.
2023-06-27libsframe: update the semantics of sframe_fre_get_ra_offsetIndu Bhagat2-9/+17
Until now, sframe_fre_get_ra_offset () would return SFRAME_ERR_FREOFFSET_NOPRESENT if the ABI uses fixed RA offset (e.g., AMD64). A stack tracer, then, will call an explicit sframe_decoder_get_fixed_ra_offset () to get the RA offset. On second look, it appears to make sense to hide these details of whether the RA offset is fixed or not from the consumer. Now, with the changed semantics, the call to sframe_fre_get_ra_offset () will fetch the fixed RA offset if applicable, or get the RA offset from FRE when there is no fixed RA offset. Adjustments need to be made to ensure the textual dump remains the same as preivous. Currently, e.g., if RA is not being tracked per FRE, following is seen with objdump --sframe: STARTPC CFA FP RA 000000000000NNNN sp+X u u This patch changes the behavior of sframe_fre_get_ra_offset: it turns an error into non-error. This change will be included with the next release of libsframe, where all exposed symbols will be versioned for the first time. libsframe/ * sframe.c (sframe_fre_get_ra_offset): Return the fixed offset, if applicable. Else return the RA offset from the FRE. * sframe-dump.c (dump_sframe_func_with_fres): Make adjustments to keep the textual dump same as previous.
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