perf trace: Add filter Suppport

[pandora-kernel.git] / tools / perf / util / parse-events.c

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 87c424d..b097570 100644 (file)
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -8,9 +8,10 @@
 #include "cache.h"
 #include "header.h"
 
-int                                    nr_counters;
+int                            nr_counters;
 
 struct perf_event_attr         attrs[MAX_COUNTERS];
+char                           *filters[MAX_COUNTERS];
 
 struct event_symbol {
        u8              type;
@@ -691,7 +692,10 @@ static void store_event_type(const char *orgname)
        FILE *file;
        int id;
 
-       sprintf(filename, "/sys/kernel/debug/tracing/events/%s/id", orgname);
+       sprintf(filename, "%s/", debugfs_path);
+       strncat(filename, orgname, strlen(orgname));
+       strcat(filename, "/id");
+
        c = strchr(filename, ':');
        if (c)
                *c = '/';
@@ -705,7 +709,6 @@ static void store_event_type(const char *orgname)
        perf_header__push_event(id, orgname);
 }
 
-
 int parse_events(const struct option *opt __used, const char *str, int unset __used)
 {
        struct perf_event_attr attr;
@@ -742,6 +745,28 @@ int parse_events(const struct option *opt __used, const char *str, int unset __u
        return 0;
 }
 
+int parse_filter(const struct option *opt __used, const char *str,
+                int unset __used)
+{
+       int i = nr_counters - 1;
+       int len = strlen(str);
+
+       if (i < 0 || attrs[i].type != PERF_TYPE_TRACEPOINT) {
+               fprintf(stderr,
+                       "-F option should follow a -e tracepoint option\n");
+               return -1;
+       }
+
+       filters[i] = malloc(len + 1);
+       if (!filters[i]) {
+               fprintf(stderr, "not enough memory to hold filter string\n");
+               return -1;
+       }
+       strcpy(filters[i], str);
+
+       return 0;
+}
+
 static const char * const event_type_descriptors[] = {
        "",
        "Hardware event",