diff options
Diffstat (limited to 'kernel/events/hw_breakpoint.c')
| -rw-r--r-- | kernel/events/hw_breakpoint.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c index 3330022..bb38c4d 100644 --- a/kernel/events/hw_breakpoint.c +++ b/kernel/events/hw_breakpoint.c @@ -581,6 +581,12 @@ static int hw_breakpoint_event_init(struct perf_event *bp) if (bp->attr.type != PERF_TYPE_BREAKPOINT) return -ENOENT; + /* + * no branch sampling for breakpoint events + */ + if (has_branch_stack(bp)) + return -EOPNOTSUPP; + err = register_perf_hw_breakpoint(bp); if (err) return err; |
