aboutsummaryrefslogtreecommitdiff
path: root/bfd/elfnn-loongarch.c
AgeCommit message (Collapse)AuthorFilesLines
2023-10-18LoongArch: Correct comments.caiyinyu1-1/+1
2023-10-17LoongArch: readelf -d RELASZ excludes .rela.plt sizemengqinggang1-0/+2
Before, readelf -d RELASZ is the sum of .rela.dyn size and .rela.plt size. To consistent with LoongArch lld, RELASZ chang to only the size of .rela.dyn.
2023-08-02Revert "2.41 Release sources"Sam James1-34/+33
This reverts commit 675b9d612cc59446e84e2c6d89b45500cb603a8d. See https://sourceware.org/pipermail/binutils/2023-August/128761.html.
2023-08-022.41 Release sourcesbinutils-2_41-releaseNick Clifton1-33/+34
2023-07-24LoongArch: ld: Simplify inserting IRELATIVE relocations to .rela.dynmengqinggang1-34/+33
In LoongArch, the R_LARCH_IRELATIVE relocations for local ifunc symbols are in .rela.dyn. Before, this is done by loongarch_elf_finish_dynamic_sections. But this function is called after elf_link_sort_relocs, it need to find a null slot to insert IRELATIVE relocation. Now, it is processed by elf_loongarch_output_arch_local_syms before elf_link_sort_relocs, just need to call loongarch_elf_append_rela to insert IRELATIVE relocation. bfd/ChangeLog: * elfnn-loongarch.c (elfNN_allocate_local_ifunc_dynrelocs): Return type change to int. (loongarch_elf_size_dynamic_sections): Delete (void *). (loongarch_elf_finish_dynamic_symbol): Use loongarch_elf_append_rela insert IRELATIVE relocation to .rela.dyn. (elfNN_loongarch_finish_local_dynamic_symbol): Return type change to int. (loongarch_elf_finish_dynamic_sections): Delete process of local ifunc symbols. (elf_backend_output_arch_local_syms): New. ld/ChangeLog: * testsuite/ld-loongarch-elf/local-ifunc-reloc.d: Regenerated.
2023-07-24LoongArch: Fix instruction immediate bug caused by sign-extendmengqinggang1-10/+49
For extreme code mode, the instruction sequences is pcalau12i $t0, hi20 addi.d $t1, $zero, lo12 lu32i.d $t1, lo20 lu52i.d $t1, hi12 add.d $t1, $t0, $t1 If lo12 > 0x7ff, hi20 need to add 0x1, lo20 need to sub 0x1. If hi20 > 0x7ffff, lo20 need to add 0x1. bfd/ChangeLog: * elfnn-loongarch.c (RELOCATE_CALC_PC32_HI20): Redefined. (RELOCATE_CALC_PC64_HI32): Redefined.
2023-06-28LoongArch: Add R_LARCH_64_PCREL relocation supportmengqinggang1-0/+1
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.
2023-05-30LoongArch: opcodes: Add support for linker relaxation.mengqinggang1-3/+3
Set gas default to enable relax. opcodes/ChangeLog: * loongarch-opc.c (struct loongarch_ASEs_option): New member relax with the default value 1.
2023-05-30LoongArch: bfd: Add support for linker relaxation.mengqinggang1-54/+528
Add relax support and related relocs in bfd. bfd/ChangeLog: * bfd-in2.h: Add relocs related to relax. * elfnn-loongarch.c (struct loongarch_elf_link_hash_table): New integer pointer (data_segment_phase) to monitor the data segment phase. (loongarch_elf_check_relocs): Swap B21/B26 reloc sequence. (loongarch_elf_adjust_dynamic_symbol): Fix code format. (loongarch_reloc_rewrite_imm_insn): Fix function call. (perform_relocation): Handle new relocs related to relax. (RELOCATE_CALC_PC32_HI20): Fix code format. (RELOCATE_CALC_PC64_HI32): Likewise. (loongarch_elf_relocate_section): Handle new relocs related to relax. (loongarch_relax_delete_bytes): New function. (loongarch_relax_pcala_addi): Likewise. (loongarch_relax_pcala_ld): Likewise. (bfd_elfNN_loongarch_set_data_segment_info): Likewise. (loongarch_relax_align): Likewise. (loongarch_elf_relax_section): Likewise. (bfd_elfNN_bfd_relax_section): New macro define. * elfxx-loongarch.c (reloc_bits): New bfd point parameter. (reloc_bits_b16): Likewise. (reloc_bits_b21): Likewise. (reloc_bits_b26): Likewise. (loongarch_adjust_reloc_bitsfield): Likewise. (reloc_bits_pcrel20_s2): New function. (loongarch_elf_add_sub_reloc): Likewise. (loongarch_elf_add_sub_reloc_uleb128): Likewise. (loongarch_write_unsigned_leb128): New function. * elfxx-loongarch.h (loongarch_adjust_reloc_bitsfield): New bfd point parameter. (bfd_elf32_loongarch_set_data_segment_info): New declare. (bfd_elf64_loongarch_set_data_segment_info): Likewise. (loongarch_write_unsigned_leb128): Likewise. * libbfd.h: Add relocs related to relax. * reloc.c: Add relocs related to relax.
2023-05-15LoongArch: Fix PLT entry generate bugmengqinggang1-3/+1
If a function symbol only get its address by la.global, without directly called by bl instruction, the PLT entry is not required. bfd/ChangeLog: * elfnn-loongarch.c (loongarch_elf_adjust_dynamic_symbol): Fix PLT entry generate bug. ld/ChangeLog: * testsuite/ld-elf/shared.exp: Clear xfail for LoongArch.
2023-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
The newer update-copyright.py fixes file encoding too, removing cr/lf on binutils/bfdtest2.c and ld/testsuite/ld-cygwin/exe-export.exp, and embedded cr in binutils/testsuite/binutils-all/ar.exp string match.
2022-12-06LoongArch: Fix dynamic reloc not generated bug in some cases.mengqinggang1-1/+1
bfd/ChangeLog: * elfnn-loongarch.c (loongarch_elf_relocate_section): Likewise.
2022-09-30LoongArch: Update ELF e_flags handling according to specification.liuzhensong1-3/+18
Update handling of e_flags according to the documentation update [1] (discussions [2][3]). Object file bitness is now represented in the EI_CLASS byte. The e_flags field is now interpreted as follows: e_flags[2:0]: Base ABI modifier - 0x1: soft-float - 0x2: single-precision hard-float - 0x3: double-precision hard-float e_flags[7:6]: ELF object ABI version - 0x0: v0 - 0x1: v1 [1]: https://github.com/loongson/LoongArch-Documentation/blob/main/docs/LoongArch-ELF-ABI-EN.adoc#e_flags-identifies-abi-type-and-version [2]: https://github.com/loongson/LoongArch-Documentation/pull/61 [3]: https://github.com/loongson/LoongArch-Documentation/pull/47
2022-09-20LoongArch: Fix R_LARCH_IRELATIVE insertion after elf_link_sort_relocsXi Ruoyao1-17/+24
loongarch_elf_finish_dynamic_symbol is called after elf_link_sort_relocs if -z combreloc. elf_link_sort_relocs redistributes the contents of .rela.* sections those would be merged into .rela.dyn, so the slot for R_LARCH_IRELATIVE may be out of relplt->contents now. To make things worse, the boundary check dyn < dyn + relplt->size / sizeof (*dyn) is obviously wrong ("x + 10 < x"? :), causing the issue undetected during the linking process and the resulted executable suddenly crashes at runtime. The issue was found during an attempt to add static-pie support to the toolchain. Fix it by iterating through the inputs of .rela.dyn to find the slot.
2022-09-20LoongArch: Don't write into GOT for local ifuncXi Ruoyao1-2/+3
Local ifuncs are always resolved at runtime via R_LARCH_IRELATIVE, so there is no need to write anything into GOT. And when we write the GOT we actually trigger a heap-buffer-overflow: If a and b are different sections, we cannot access something in b with "a->contents + (offset from a)" because "a->contents" and "b->contents" are heap buffers allocated separately, not slices of a large buffer. So stop writing into GOT for local ifunc now.
2022-08-24LoongArch: ld: Fix bug not generate plt when link a dsoliuzhensong1-0/+6
Fix the bug that can not generate func@plt when linking a undefined function with cmodel=medium. Add testcase. bfd/ * elfnn-loongarch.c ld/testsuite/ld-loongarch-elf/ * cmodel-libjirl.dd * cmodel.exp * libjirl.s
2022-08-01LoongArch: Set defaults to exec stack 0.liuzhensong1-0/+1
2022-07-26Fix indentation in loongarch code, preventing a compile time warning.Nick Clifton1-12/+10
2022-07-25bfd: Delete R_LARCH_NONE from dyn info of LoongArch.liuzhensong1-0/+11
Some R_LARCH_64 in section .eh_frame will to generate R_LARCH_NONE, we change relocation to R_LARCH_32_PCREL from R_LARCH_64 in setction .eh_frame and not generate dynamic relocation for R_LARCH_32_PCREL. Add New relocate type R_LARCH_32_PCREL for .eh_frame. include/elf/ loongarch.h bfd/ bfd/bfd-in2.h libbfd.h reloc.c elfxx-loongarch.c elfnn-loongarch.c gas/config/ tc-loongarch.c binutils/ readelf.c ld/testsuite/ld-elf/ eh5.d
2022-07-25LoongArch: Move ifunc info to rela.dyn from rela.plt.liuzhensong1-29/+344
Delete R_LARCH_IRELATIVE from dynamic loader (glibc ld.so) when loading lazy function (rela.plt section). In dynamic programes, move ifunc dynamic relocate info to section srelgot from srelplt. bfd/ elfnn-loongarch.c
2022-07-25bfd: Add supported for LoongArch new relocations.liuzhensong1-430/+772
Define new reloc types according to linker needs. include/elf/ loongarch.h bfd/ bfd-in2.h libbfd.h reloc.c elfnn-loongarch.c elfxx-loongarch.c elfxx-loongarch.h
2022-05-07Re: Fix new linker testsuite failures due to rwx segment test problemsAlan Modra1-3/+0
Fix it some more. bfd/ * elfnn-loongarch.c: Remove commented out elf_backend_* defines. ld/ * testsuite/ld-elf/elf.exp (target_defaults_to_execstack): Match arm*. Delete loongarch.
2022-05-05loongarch: Don't check ABI flags if no code sectionXi Ruoyao1-0/+21
Various packages (glib and gtk4 for example) produces data-only objects using `ld -r -b binary` or `objcopy`, with no elf header flags set. But these files also have no code sections, so they should be compatible with all ABIs. bfd/ * elfnn-loongarch.c (elfNN_loongarch_merge_private_bfd_data): Skip ABI checks if the input has no code sections. Reported-by: Wu Xiaotian <yetist@gmail.com> Suggested-by: Wang Xuerui <i@xen0n.name> Signed-off-by: Xi Ruoyao <xry111@mengyan1223.wang>
2022-04-14ld:LoongArch: Fix glibc fail: tst-audit25a/b.caiyinyu1-0/+16
bfd/ * elfnn-loongarch.c: Add new func elf_loongarch64_hash_symbol.
2022-03-20LoongArch: Fix LD check fails.liuzhensong1-62/+279
Some test cases about ifunc. bfd/ * elfnn-loongarch.c * elfxx-loongarch.h === ld Summary === of expected passes 1430 of expected failures 11 of untested testcases 1 of unsupported tests 154
2022-03-20LoongArch: Update ABI eflag in elf header.liuzhensong1-1/+1
Update LoongArch ABI eflag in elf header. ilp32s 0x5 ilp32f 0x6 ilp32d 0x7 lp64s 0x1 lp64f 0x2 lp64d 0x3 bfd/ * elfnn-loongarch.c Check object flags while ld. gas/ * tc-loongarch.c Write eflag to elf header. include/elf * loongarch.h Define ABI number.
2022-03-20LoongArch: Use functions instead of magic numbers.liuzhensong1-89/+32
Replace the magic numbers in gas(tc-loongarch.c) and bfd(elfnn-loongarch.c) with the functions defined in the howto table(elfxx-loongarch.c). gas/ * config/tc-loongarch.c: use functions. bfd/ * elfnn-loongarch.c: use functions. * elfxx-loongarch.c: define functions. * elfxx-loongarch.h
2022-01-02Update year range in copyright notice of binutils filesAlan Modra1-1/+1
The result of running etc/update-copyright.py --this-year, fixing all the files whose mode is changed by the script, plus a build with --enable-maintainer-mode --enable-cgen-maint=yes, then checking out */po/*.pot which we don't update frequently. The copy of cgen was with commit d1dd5fcc38ead reverted as that commit breaks building of bfp opcodes files.
2021-10-24LoongArch bfd supportliuzhensong1-0/+3265
2021-10-22 Chenghua Xu <xuchenghua@loongson.cn> Zhensong Liu <liuzhensong@loongson.cn> Weinan Liu <liuweinan@loongson.cn> bfd/ * Makefile.am: Add LoongArch. * archures.c: Likewise. * config.bfd: Likewise. * configure.ac: Likewise. * cpu-loongarch.c: New. * elf-bfd.h: Add LoongArch. * elf.c: Add LoongArch elfcore_grok_xxx. * elfnn-loongarch.c: New. * elfxx-loongarch.c: New. * elfxx-loongarch.h: New. * reloc.c: Add LoongArch BFD RELOC ENUM. * targets.c: Add LoongArch target. * Makefile.in: Regenerate. * bfd-in2.h: Regenerate. * configure: Regenerate. * libbfd.h: Regenerate. * po/BLD-POTFILES.in: Regenerate. * po/SRC-POTFILES.in: Regenerate. include/ * elf/common.h: Add NT_LARCH_{CPUCFG,CSR,LSX,LASX}. * elf/loongarch.h: New.
generated by cgit v1.1 at 2024-12-15 08:49:01 +0000