4.14-stable review patch. If anyone has any objections, please let me know.
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From: Simon Ser contact@emersion.fr
commit ce90aaf5cde4ce057b297bb6c955caf16ef00ee6 upstream.
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@emersion.fr Signed-off-by: Josh Poimboeuf jpoimboe@redhat.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Link: http://lkml.kernel.org/r/c0f2231683e9bed40fac1f13ce2c33b8389854bc.1514666459... Signed-off-by: Ingo Molnar mingo@kernel.org Cc: Guenter Roeck linux@roeck-us.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- tools/objtool/orc_gen.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/tools/objtool/orc_gen.c +++ b/tools/objtool/orc_gen.c @@ -165,6 +165,8 @@ int create_orc_sections(struct objtool_f
/* 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)