5.4-stable review patch. If anyone has any objections, please let me know.
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From: Alexandre Chartre alexandre.chartre@oracle.com
commit 87cf61fe848ca8ddf091548671e168f52e8a718e upstream.
Fix is_fentry_call() so that it works if a call has no destination set (call_dest). This needs to be done in order to support intra- function calls.
Signed-off-by: Alexandre Chartre alexandre.chartre@oracle.com Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Reviewed-by: Miroslav Benes mbenes@suse.cz Acked-by: Josh Poimboeuf jpoimboe@redhat.com Link: https://lkml.kernel.org/r/20200414103618.12657-2-alexandre.chartre@oracle.co... Signed-off-by: Rui Qi qirui.001@bytedance.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/objtool/check.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -1367,7 +1367,7 @@ static int decode_sections(struct objtoo
static bool is_fentry_call(struct instruction *insn) { - if (insn->type == INSN_CALL && + if (insn->type == INSN_CALL && insn->call_dest && insn->call_dest->type == STT_NOTYPE && !strcmp(insn->call_dest->name, "__fentry__")) return true;