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6 daysgas: Enhance arch-specific SFrame configuration descriptionsJens Remus4-14/+19
Explicitly mention "SFrame" in the descriptions for the architecture- specific SFrame configuration macros, variables, and functions. Use the term "frame pointer" (FP) instead of "base pointer". This aligns with the terminology used in the SFrame specification. Additionally it helps not to confuse "base-pointer register" with the term "BASE_REG" used in the specification to denote either the SP or FP register. Specify what the SFRAME_CFA_*_REG register numbers are used for: - SP (stack pointer): CFA tracking - FP (frame pointer): CFA and FP tracking - RA (return address): RA tracking Align the descriptions for definitions in the source files to the declarations in the header files. gas/ * config/tc-aarch64.h: Enhance architecture-specific SFrame configuration descriptions. * config/tc-aarch64.c: Likewise. * config/tc-i386.h: Likewise. * config/tc-i386.c: Likewise. Signed-off-by: Jens Remus <jremus@linux.ibm.com>
6 daysx86: Remove unused SFrame CFI RA register variableJens Remus1-1/+0
gas/ * config/tc-i386.c (x86_sframe_cfa_ra_reg): Remove. Signed-off-by: Jens Remus <jremus@linux.ibm.com>
6 daysSupport APX CFCMOVCui, Lili13-2242/+3670
The CMOVcc instruction proposed by EVEX has four different forms, corresponding to the four possible combinations of EVEX.ND and EVEX.NF values. In the encoder part, when the CFCMOV template supports EVEX_NF, it means that it requires EVEX.NF to be 1. In the decoder part, CFCMOV_Fixup is used to reverse source and destination operands in the 2-operand case. gas/ChangeLog: * config/tc-i386.c (build_apx_evex_prefix): Set NF bit for cfcmov when the insn template supports EVEX_NF. * testsuite/gas/i386/x86-64-apx-inval.l: Add invalid tests for cfcmov. * testsuite/gas/i386/x86-64-apx-inval.s: Ditto. * testsuite/gas/i386/x86-64.exp: Add tests for cfcmov and cmov. * testsuite/gas/i386/x86-64-apx-cfcmov-intel.d: Ditto. * testsuite/gas/i386/x86-64-apx-cfcmov.d: Ditto. * testsuite/gas/i386/x86-64-apx-cfcmov.s: Ditto. opcodes/ChangeLog: * i386-dis-evex-prefix.h: Add cfcmov instructions. * i386-dis.c (CFCMOV_Fixup): Special handling of cfcmov. (putop): Print 'cf' for cfcmov instructions. * i386-opc.h (EVEX_NF): New. * i386-opc.tbl: Add cfcmov instructions. * i386-mnem.h: Regerated. * i386-tbl.h: Regerated.
6 daysAutomatic date update in version.inGDB Administrator1-1/+1
7 daysRISC-V: Tidy and complete testing of all architecture imply rules.Nelson Chu21-97/+177
gas/ * testsuite/gas/riscv/imply.s: New testcase for all imply cases. * testsuite/gas/riscv/imply.d: Likewise. * testsuite/gas/riscv/march-imply-i.s: Renamed to imply-zicsr-zifencei.s. * testsuite/gas/riscv/march-imply-i2p0-02.d: Renamed to imply-zicsr-zifencei-i2p0-misa-spec-2p2.d. * testsuite/gas/riscv/march-imply-i2p1-01.d/l: Renamed to imply-zicsr-zifencei-i2p1-misa-spec-20191213.d. * testsuite/gas/riscv/march-imply-i2p0-01.d: Removed. Combined into new imply testcase. * testsuite/gas/riscv/march-imply-i2p1-02.d: Likewise. * testsuite/gas/riscv/march-imply-a.d: Likewise. * testsuite/gas/riscv/march-imply-b.d: Likewise. * testsuite/gas/riscv/march-imply-f.d: Likewise. * testsuite/gas/riscv/march-imply-g.d: Likewise. * testsuite/gas/riscv/march-imply-h.d: Likewise. * testsuite/gas/riscv/march-imply-q.d: Likewise. * testsuite/gas/riscv/march-imply-smcsrind.d: Likewise. * testsuite/gas/riscv/march-imply-smstateen.d: Likewise. * testsuite/gas/riscv/march-imply-unsupported.d: Likewise. * testsuite/gas/riscv/march-imply-v.d: Likewise. * testsuite/gas/riscv/march-imply-zcd.d: Likewise. * testsuite/gas/riscv/march-imply-zcf.d: Likewise.
7 daysAvoid possible signed overflow in decode_local_label_nameAlan Modra1-4/+4
Matches what both fb_label_name and dollar_label_name use. * symbols.c (decode_local_label_name): Use unsigned variables.
7 daysgas/doc/riscv: Fixed typo of `.insn cj' formatNelson Chu1-1/+1
gas/ * doc/c-riscv.texi: Fixed typo of `.insn cj' format.
7 daysx86-64: Support APX NF TLS IE with 2 operandsLingling Kong8-20/+58
Support APX NF TLS IE with 2 operands.Verify it with ld and gold. gas/ * config/tc-i386.c (md_assemble): Allow APX NF TLS IE with 2 operands. * testsuite/gas/i386/x86-64-gottpoff.d: Updated. * testsuite/gas/i386/x86-64-gottpoff.s: Add APX NF TLS IE tests with 2 operands. gold/ * testsuite/x86_64_ie_to_le.s: Add APX NF TLS IE tests with 2 operands. * testsuite/x86_64_ie_to_le.sh: Updated. ld/ * testsuite/ld-x86-64/tlsbindesc.s: Add APX NF TLS IE tests with 2 operands. * testsuite/ld-x86-64/tlsbindesc.d: Updated. * testsuite/ld-x86-64/tlsbindesc.rd: Likewise.
7 daysgas/doc/riscv: Fixed syntax of `.option arch' when reseting whole architectureNelson Chu1-2/+2
gas/ * doc/c-riscv.texi: Fixed syntax of `.option arc'h when reseting whole architecture. Don't need the `=' before ISA.
7 daysAutomatic date update in version.inGDB Administrator1-1/+1
8 daysAccept unnamed array in gdb.ada/limited-length.expTom Tromey1-12/+9
Some compiler changes I'm working on cause a regression in gdb.ada/limited-length.exp -- with the changes, the array type is nameless and so is not mentioned in the max-value-size error message. Because the array type is nameless in the source code, this seems like an improvement to me, and so this patch changes the test to accept either form.
8 daysUse lwp field in ptid for AIX.Aditya Vidyadhar Kamath1-11/+8
Currently in AIX, the private data is used to maintain the kernel thread ID. This is a patch to trim the need to have another field in the private data of a thread in AIX. We want to use the lwp field to represent the kernel thread ID to match or make things similar to the Linux targets.
8 daysx86-64: Verify that TLS IE works with APX NFkonglin17-20/+64
Verify that {nf} add %reg1, foo@gottpoff(%rip), %reg2 {nf} add foo@gottpoff(%rip), %reg, %reg2 work correctly with ld and gold. gas/ * testsuite/gas/i386/x86-64-gottpoff.d: Updated. * testsuite/gas/i386/x86-64-gottpoff.s: Add tests for "{nf} add %reg1, foo@gottpoff(%rip), %reg2" and "{nf} add foo@gottpoff(%rip), %reg, %reg2". gold/ * testsuite/x86_64_ie_to_le.s: Add tests for "{nf} add %reg1, foo@gottpoff(%rip), %reg2" and "{nf} add foo@gottpoff(%rip), %reg, %reg2". * testsuite/x86_64_ie_to_le.sh: Updated. ld/ * testsuite/ld-x86-64/tlsbindesc.s: Add R_X86_64_CODE_6_GOTTPOFF for APX NF tests. * testsuite/ld-x86-64/tlsbindesc.d: Updated. * testsuite/ld-x86-64/tlsbindesc.rd: Likewise. Co-Authored-By: H.J. Lu <hjl.tools@gmail.com> Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
8 daysAutomatic date update in version.inGDB Administrator1-1/+1
9 daysld: Move foo before delete in dl5.ccH.J. Lu1-1/+1
* testsuite/ld-elf/dl5.cc (main): Move foo before delete. Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
9 daysMAINTAINERS: Update my e-mail addressClaudiu Zissulescu1-1/+1
Signed-off-by: Claudiu Zissulescu <claziss@gmail.com>
9 daysLoongArch: Remove unused code in ld test suiteXi Ruoyao2-9/+0
These seems some left over from MIPS code and they do not make any sense for LoongArch. Signed-off-by: Xi Ruoyao <xry111@xry111.site>
9 daysPR31941 objcopy --globalize-symbolAlan Modra1-0/+1
I think FILE symbols are special, and I can't see why anyone would want them to be made global. The fact that no one has reported this bug since commit 7b4a0685e80a in 2005 supports that claim. PR 31941 * objcopy.c (filter_symbols): Don't allow BSF_FILE symbols to be made global.
9 daysAutomatic date update in version.inGDB Administrator1-1/+1
9 daysld: Avoid folding new and delete pairsH.J. Lu3-10/+19
GCC 15 may fold new and delete pairs, like A *bb = new A[10]; delete [] bb; bb = new (std::nothrow) A [10]; delete [] bb; as shown in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115712 Avoid folding new and delete pairs by adding a function call between new and delete. * testsuite/ld-elf/dl5.cc: Include "dl5.h". (A): Removed. Call foo between new and delete. * testsuite/ld-elf/dl5.h: New file. * testsuite/ld-elf/new.cc: Include "dl5.h". (foo): New function. Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
9 daysobjcopy: Allow making symbol global and weak on same invocationMarcus Nilsson3-15/+27
Previously objcopy had to be run twice in order to make a local symbol weak, first once to globalize it, and once again to mark it as weak. * objcopy.c (filter_symbols): Weaken symbols after making local/global changes. * testsuite/binutils-all/symbols-5.d, * testsuite/binutils-all/symbols-5.s: New test.
10 daystweak latest vms-alpha.c changeAlan Modra1-1/+1
It's that tiny bit nicer to have the "len" expression in order of the components in the buffer.
10 daysAssertion `(data) <= (end)' failed in read_basesAlan Modra1-24/+29
* dwarf.c (skip_attribute): Don't increment data past end. Use SKIP_{S,U}LEB rather than READ_{S,U}LEB.
10 daysRe: Rewrite SHT_GROUP handlingAlan Modra1-50/+52
Some more error tweaks. Report a zero entry as "invalid entry.." rather than "unknown type..", and allow a section to be mentioned twice in a group. * elf.c (process_sht_group_entries): Tweak error messages, and allow a duplicate index in a group without reporting an error.
10 daysAutomatic date update in version.inGDB Administrator1-1/+1
11 daysld: pass -g for ld-elf testsSam James2-2/+2
The "DWARF parse during linker error" and "Build warn libbar.so" tests require debug information. configure defaults to "-O2 -g" but if overriding *FLAGS when building tests, this might be lost. Explicitly pass -g given these tests require it. Originally reported downstream in Gentoo at https://bugs.gentoo.org/934149. ld/ * testsuite/ld-elf/dwarf.exp: Pass -g for "DWARF parse during linker error". * testsuite/ld-elf/shared.exp: Ditto for "Build warn libbar.so".
11 daysAutomatic date update in version.inGDB Administrator1-1/+1
12 daysaarch64: Add support for Armv9.5-A architectureClaudio Bantaloukas13-4/+42
The new -march=armv9.5-a flag enables access to the mandatory cpa, lut and faminmax extensions. Existing test cases for features are extended to verify they work without additional flags.
12 daysld/doc: drop stray blankJan Beulich1-4/+3
Old enough tools demand no blank between @option and the opening figure brace. Re-wrap the paragraph as well while at it.
12 daysLoongArch: Do not check R_LARCH_SOP_PUSH_ABSOLUTE to avoid broken links to ↵Lulu Cai1-5/+6
old object files R_LARCH_SOP_PUSH_ABSOLUTE with -fPIC was heavily used in the era of gas-2.38. We do not check this relocation to prevent broken links with old object files.
12 daysx86/APX: apply NDD-to-legacy transformation to further CMOVcc formsJan Beulich5-32/+82
With both sources being registers, these insns are almost commutative; the only extra adjustment needed is inversion of the encoded condition.
12 daysx86/APX: extend TEST-by-imm7 optimization to CTESTccJan Beulich6-49/+149
The same properties apply there.
12 daysx86/APX: optimize {nf}-form IMUL-by-power-of-2 to SHLJan Beulich6-12/+264
..., for differing only in the resulting EFLAGS, which are left untouched anyway. That's a shorter encoding, available as long as certain constraints on operands are met; see code comments. (SHL-by-1 forms may then be subject to further optimization that was introduced earlier.) Note that kind of as a side effect this also converts multiplication by 1 to shift by 0, which is a plain move or even no-op anyway. That could be further shrunk (as could be presence of shifts/rotates by 0 in the original code as well as a fair set of other {nf}-form insns), yet the expectation (for now) is that people won't write such code in the first place.
12 daysx86-64: restrict by-imm31 optimizationJan Beulich4-18/+21
Avoid changing the encoding when there's no size gain: If there's a REX or REX2 prefix anyway and the base opcode wouldn't be changed, dropping just REX.W / REX2.W has no (size) effect. (Same for the AND-by-imm7 case in the same big conditional.) While there also pull out the .qword check: For the 2-register-operands case whether that's done on the 1st or 2nd operand doesn't matter. Due to reduction in necessary parentheses this improves readability a tiny bit.
12 daysx86/APX: optimize certain {nf}-form insns to LEAJan Beulich7-15/+1819
..., as that leaves EFLAGS untouched anyway. That's a shorter encoding, available as long as certain constraints on operand size and registers are met; see code comments. Note that this requires deferring to derive encoding_evex from {nf} presence, as in optimize_encoding() we want to avoid touching the insns when {evex} was also used. Note further that this requires want_disp32() to now also consider the opcode: We don't want to replace i.tm.mnem_off, for diagnostics to still report the original mnemonic (or else things can get confusing). While there, correct adjacent mis-indentation.
12 daysx86/APX: optimize {nf}-form rotate-by-width-less-1Jan Beulich5-16/+88
Unlike for the legacy forms, where there's a difference in the resulting EFLAGS.CF, for the NF variants the immediate can be got rid of in that case by switching to a 1-bit rotate in the opposite direction.
12 daysx86/APX: optimize {nf} forms of ADD/SUB with specific immediatesJan Beulich8-22/+1648
Unlike for the legacy forms, where there's a difference in the resulting EFLAGS, for the NF variants we can safely replace ones using 0x80 by the respectively other insn while negating the immediate, saving 3 immediate bytes (just 1 though for 16-bit operand size). Similarly we can replace ones using 1 / -1 by INC/DEC (eliminating the immediate).
12 daysgas: .irp/.irpc are macro-likeJan Beulich1-2/+2
... for the purposes of get_line_sb() and _find_end_of_line(): They support \@ just like macros do, and hence the special casing there also needs applying.
12 daysRISC-V: Shrink the riscv_implicit_subsets table.Nelson Chu1-165/+149
Allow to add implicit extensions by using the syntax of `.option arch, +-', so that the table is shrinked and more readable. bfd/ * elfxx-riscv.c (check_implicit_always): Removed the unused IMPLICIT parameter. (check_implicit_for_i): Likewise. (riscv_implicit_subsets): Shrink the table by allowing the syntax of `.option arch, +-' for implicit extensions. (riscv_update_subset1): New function, called from riscv_update_subset or riscv_parse_add_implicit_subsets. It basically does the same thing as riscv_update_subset function before. (riscv_parse_add_implicit_subsets): Updated. (riscv_update_subset): Updated.
12 daysRISC-V: PR27180, Update relocation for riscv_zero_pcrel_hi_reloc.Nelson Chu3-12/+67
When pcrel access overflow, the riscv_zero_pcrel_hi_reloc may convert pcrel relocation to absolutly access if possible at the relocate stage. We used to encode the target address into r_sym of R_RISCV_HI20 if it is converted from R_RISCV_PCREL_HI20. But that may cause segfault if --emit-relocs is set, since r_sym becomes an address rather than a symbol index. Although the relocate result is correct, it does not meet the definition, so may cause unexpected behaviors. This patch encodes the target address into r_addend, rather than r_sym, if riscv_zero_pcrel_hi_reloc converts the relocation. Besdies, since the corresponding pcrel_lo relocation are also changed to absolutly access, we should also update them to R_RISCV_LO12_I/S. bfd/ PR 27180 * elfnn-riscv.c (riscv_pcrel_hi_reloc): New boolean `absolute', to inform corresponding pcrel_lo that the pcrel_hi relocation was already converted to hi20 relocation. (riscv_record_pcrel_hi_reloc): Likewise, record `absolute'. (riscv_pcrel_lo_reloc): Removed `const' for Elf_Internal_Rela *reloc, since we may need to convert it from pcrel_lo to lo relocation. (riscv_record_pcrel_lo_reloc): Likewise. Convert pcrel_lo to lo relocation if corresponding pcrel_hi was converted to hi relocation. (riscv_zero_pcrel_hi_reloc): Encode target absolute address into r_addend rather than r_sym. Clear the `addr' to avoid duplicate relocate in the perform_relocation. (riscv_elf_relocate_section): Updated. ld/ PR 27180 * testsuite/ld-riscv-elf/pcrel-lo-addend-3a-emit-relocs.d: New testcase. Segfault without applying this patch. * testsuite/ld-riscv-elf/ld-riscv-elf.exp: Updated.
12 daysRISC-V: Add Zabha extension CAS instructions.Jiawei7-2/+44
This patch update the cas instruction in Zabha extension [1], when both Zabha and Zacas extension enabled. [1] https://github.com/riscv/riscv-zabha/tags bfd/ChangeLog: * elfxx-riscv.c (riscv_multi_subset_supports): New extension case. gas/ChangeLog: * testsuite/gas/riscv/zabha-32.d: New instructions. * testsuite/gas/riscv/zabha.d: Ditto. * testsuite/gas/riscv/zabha.s: Ditto. include/ChangeLog: * opcode/riscv-opc.h (MATCH_AMOCAS_B): New opcodes. (MASK_AMOCAS_B): Ditto. (MATCH_AMOCAS_H): Ditto. (MASK_AMOCAS_H): Ditto. (DECLARE_INSN): New instructions. * opcode/riscv.h (enum riscv_insn_class): New class case. opcodes/ChangeLog: * riscv-opc.c: New instructions.
12 daysAutomatic date update in version.inGDB Administrator1-1/+1
12 daysSet BFD_DECOMPRESS when reading build-id debuglinkH.J. Lu2-4/+9
We should set BFD_DECOMPRESS to decompress sections unless dumping the section contents when reading build-id debuglink. PR binutils/31925 * objdump.c (open_debug_file): Set BFD_DECOMPRESS to decompress sections unless dumping the section contents. * testsuite/binutils-all/objdump.exp (test_build_id_debuglink): Add a compress option. Run test_build_id_debuglink with none and zlib. Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
13 daysgdb: add overloads of gdb_tilde_expandAndrew Burgess4-5/+19
Like the previous commit, add two overloads of gdb_tilde_expand, one takes std::string and other takes gdb::unique_xmalloc_ptr<char>. Make use of these overloads throughout GDB and gdbserver. There should be no user visible changes after this commit. Approved-By: Tom Tromey <tom@tromey.com>
13 daysgdb: add overloads of gdb_abspathAndrew Burgess8-7/+23
Add two overloads of gdb_abspath, one which takes std::string and one which takes gdb::unique_xmalloc_ptr<char>, then make use of these overloads throughout GDB and gdbserver. There should be no user visible changes after this commit. Approved-By: Tom Tromey <tom@tromey.com>
13 daysImprove comments describing the Import Directory TablePali Roh?r2-4/+11
PR 31728
13 daysFix new libdep test so that if the plugin cannot be located the test fails ↵Nick Clifton1-3/+4
gracefully.
13 daysRe: Rewrite SHT_GROUP handlingAlan Modra1-34/+15
There is no need to loop over the headers twice. Remove that leftover from the previous scheme. Also, the previous scheme silently ignored a section being mentioned in two or more SHT_GROUP sections. * elf.c (process_sht_group_entries): Prevent sections from belonging to two groups. (_bfd_elf_setup_sections): Process groups in a single loop over headers.
13 daysAutomatic date update in version.inGDB Administrator1-1/+1
13 daysRewrite SHT_GROUP handlingAlan Modra2-287/+108
This patch delays setting up elf_next_in_group, elf_sec_group and elf_group_name when reading ELF object files until after all ELF sections have been processed by bfd_section_from_shdr. This is simpler and more robust than the current scheme of driving the whole process on detecting a section with SHF_GROUP set. * elf-bfd.h (struct elf_obj_tdata): Delete group_sect_ptr, num_group and group_search_offset. * elf.c (Elf_Internal_Group): Delete. (setup_group): Delete function. (IS_VALID_GROUP_SECTION_HEADER): Delete macro. (is_valid_group_section_header), (process_sht_group_entries): New functions. (_bfd_elf_setup_sections): Handle group sections here.. (_bfd_elf_make_section_from_shdr): ..rather than here. (bfd_section_from_shdr): Don't check SHT_GROUP validity here.
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