perf tools: Add missing 'node' alias to the hw_cache[] array
Add "node" as a simple alias for NODE cache events.
The addition of NODE cache events broke the parse_alias
function, so any mismatched event caused the segfault, like:
# ./perf stat -e krava ls
The hw_cache/hw_cache_op/hw_cache_result arrays needs to follow
PERF_COUNT_HW_CACHE_*MAX enums. Adding those MAXs to be size
of those arrays, so possible ommision in future wil not lead to
segfault.
Adding read/write/prefetch as allowed operations for node cache
event.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: acme@redhat.com
Link: http://lkml.kernel.org/r/20110713205818.GB7827@jolsa.brq.redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 41982c3..c0e21ae 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -86,22 +86,24 @@
#define MAX_ALIASES 8
-static const char *hw_cache[][MAX_ALIASES] = {
+static const char *hw_cache[PERF_COUNT_HW_CACHE_MAX][MAX_ALIASES] = {
{ "L1-dcache", "l1-d", "l1d", "L1-data", },
{ "L1-icache", "l1-i", "l1i", "L1-instruction", },
- { "LLC", "L2" },
+ { "LLC", "L2", },
{ "dTLB", "d-tlb", "Data-TLB", },
{ "iTLB", "i-tlb", "Instruction-TLB", },
{ "branch", "branches", "bpu", "btb", "bpc", },
+ { "node", },
};
-static const char *hw_cache_op[][MAX_ALIASES] = {
+static const char *hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][MAX_ALIASES] = {
{ "load", "loads", "read", },
{ "store", "stores", "write", },
{ "prefetch", "prefetches", "speculative-read", "speculative-load", },
};
-static const char *hw_cache_result[][MAX_ALIASES] = {
+static const char *hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
+ [MAX_ALIASES] = {
{ "refs", "Reference", "ops", "access", },
{ "misses", "miss", },
};
@@ -124,6 +126,7 @@
[C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
[C(ITLB)] = (CACHE_READ),
[C(BPU)] = (CACHE_READ),
+ [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
};
#define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
@@ -393,7 +396,7 @@
PERF_COUNT_HW_CACHE_OP_MAX);
if (cache_op >= 0) {
if (!is_cache_op_valid(cache_type, cache_op))
- return 0;
+ return EVT_FAILED;
continue;
}
}