[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20200428191659.618384136@infradead.org>
Date: Tue, 28 Apr 2020 21:11:05 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: jpoimboe@...hat.com, alexandre.chartre@...cle.com
Cc: linux-kernel@...r.kernel.org, jthierry@...hat.com,
tglx@...utronix.de, x86@...nel.org, mbenes@...e.cz,
peterz@...radead.org
Subject: [PATCH v2 04/14] objtool: is_fentry_call() crashes if call has no destination
From: Alexandre Chartre <alexandre.chartre@...cle.com>
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@...cle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://lkml.kernel.org/r/20200414103618.12657-2-alexandre.chartre@oracle.com
---
tools/objtool/check.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -1490,7 +1490,7 @@ 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;
Powered by blists - more mailing lists