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Date: Sat, 30 Dec 2017 14:43:32 -0600 From: Josh Poimboeuf <jpoimboe@...hat.com> To: Ingo Molnar <mingo@...nel.org> Cc: linux-kernel@...r.kernel.org, Simon Ser <contact@...rsion.fr> Subject: [PATCH 2/2] objtool: Fix seg fault with clang-compiled objects From: Simon Ser <contact@...rsion.fr> Fix a seg fault which happens when an input file provided to 'objtool orc generate' doesn't have a '.shstrtab' section (for instance, object files produced by clang don't have this section). Signed-off-by: Simon Ser <contact@...rsion.fr> Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com> --- tools/objtool/orc_gen.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/objtool/orc_gen.c b/tools/objtool/orc_gen.c index e5ca31429c9b..e61fe703197b 100644 --- a/tools/objtool/orc_gen.c +++ b/tools/objtool/orc_gen.c @@ -165,6 +165,8 @@ int create_orc_sections(struct objtool_file *file) /* create .orc_unwind_ip and .rela.orc_unwind_ip sections */ sec = elf_create_section(file->elf, ".orc_unwind_ip", sizeof(int), idx); + if (!sec) + return -1; ip_relasec = elf_create_rela_section(file->elf, sec); if (!ip_relasec) -- 2.13.6
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