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| author |   Alexandre Chartre <alexandre.chartre@oracle.com> | 2020-04-14 12:36:10 +0200 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2020-04-30 20:14:32 +0200 |
| commit | 87cf61fe848ca8ddf091548671e168f52e8a718e (patch) | |
| tree | 5ce9737388ad3be7430ecfaf6e66e3170b00c45a /tools/objtool | |
| parent | x86,smap: Fix smap_{save,restore}() alternatives (diff) | |
| download | wireguard-linux-87cf61fe848ca8ddf091548671e168f52e8a718e.tar.xz wireguard-linux-87cf61fe848ca8ddf091548671e168f52e8a718e.zip | |
objtool: is_fentry_call() crashes if call has no destination
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.com
Diffstat (limited to 'tools/objtool')
| -rw-r--r-- | tools/objtool/check.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index fa9bf364545c..8af8de2299e8 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -1484,7 +1484,7 @@ static int decode_sections(struct objtool_file *file) 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; |