diff options
Diffstat (limited to 'tools/perf/util/parse-events.c')
| -rw-r--r-- | tools/perf/util/parse-events.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 0cc27da..7ae76af 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -383,21 +383,31 @@ parse_breakpoint_type(const char *type, struct perf_event_attr *attr) if (!type || !type[i]) break; +#define CHECK_SET_TYPE(bit) \ +do { \ + if (attr->bp_type & bit) \ + return -EINVAL; \ + else \ + attr->bp_type |= bit; \ +} while (0) + switch (type[i]) { case 'r': - attr->bp_type |= HW_BREAKPOINT_R; + CHECK_SET_TYPE(HW_BREAKPOINT_R); break; case 'w': - attr->bp_type |= HW_BREAKPOINT_W; + CHECK_SET_TYPE(HW_BREAKPOINT_W); break; case 'x': - attr->bp_type |= HW_BREAKPOINT_X; + CHECK_SET_TYPE(HW_BREAKPOINT_X); break; default: return -EINVAL; } } +#undef CHECK_SET_TYPE + if (!attr->bp_type) /* Default */ attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W; |