From: H.J. Lu Date: Wed, 30 Aug 2023 15:49:15 +0000 (-0700) Subject: elf: Check DT_SYMTAB only on non-IR object X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bac5753ca24bbbd601b6be93faa40e9458d8baa5;p=binutils-gdb.git elf: Check DT_SYMTAB only on non-IR object Check DT_SYMTAB only on non-IR object of archive member to avoid crash on LLVM IR object with NULL elf_tdata. PR ld/30811 * elflink.c (elf_link_is_defined_archive_symbol): Check DT_SYMTAB only on non-IR object. --- diff --git a/bfd/elflink.c b/bfd/elflink.c index c4f286e3d90..ca162145f7e 100644 --- a/bfd/elflink.c +++ b/bfd/elflink.c @@ -3571,12 +3571,6 @@ elf_link_is_defined_archive_symbol (bfd * abfd, carsym * symdef) if (! bfd_check_format (abfd, bfd_object)) return false; - if (elf_use_dt_symtab_p (abfd)) - { - bfd_set_error (bfd_error_wrong_format); - return false; - } - /* Select the appropriate symbol table. If we don't know if the object file is an IR object, give linker LTO plugin a chance to get the correct symbol table. */ @@ -3592,10 +3586,19 @@ elf_link_is_defined_archive_symbol (bfd * abfd, carsym * symdef) abfd = abfd->plugin_dummy_bfd; hdr = &elf_tdata (abfd)->symtab_hdr; } - else if ((abfd->flags & DYNAMIC) == 0 || elf_dynsymtab (abfd) == 0) - hdr = &elf_tdata (abfd)->symtab_hdr; else - hdr = &elf_tdata (abfd)->dynsymtab_hdr; + { + if (elf_use_dt_symtab_p (abfd)) + { + bfd_set_error (bfd_error_wrong_format); + return false; + } + + if ((abfd->flags & DYNAMIC) == 0 || elf_dynsymtab (abfd) == 0) + hdr = &elf_tdata (abfd)->symtab_hdr; + else + hdr = &elf_tdata (abfd)->dynsymtab_hdr; + } symcount = hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym;