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authorMasami Hiramatsu <mhiramat@redhat.com>2009-12-15 16:32:10 +0100
committerIngo Molnar <mingo@elte.hu>2009-12-15 20:22:03 +0100
commitbbbb521bc61008b280c72ad6e29a8a7558d3acfa (patch)
treec4abf43779dd0380cb514b52b0ce0047c5f1cf8e /tools/perf/util/probe-event.c
parentperf probe: Use strlist__for_each macros in probe-event.c (diff)
downloadlinux-bbbb521bc61008b280c72ad6e29a8a7558d3acfa.tar.xz
linux-bbbb521bc61008b280c72ad6e29a8a7558d3acfa.zip
perf probe: Add glob matching support on --del
Add glob-expression matching support on --del option. You can use wildcards for specifying deleting events. e.g. Clear all probe events: # perf probe --del '*' Clear probes on schedule(): # perf probe --del 'schedule*' Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Jason Baron <jbaron@redhat.com> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: systemtap <systemtap@sources.redhat.com> Cc: DLE <dle-develop@lists.sourceforge.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20091215153210.17436.12327.stgit@dhcp-100-2-132.bos.redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/probe-event.c')
-rw-r--r--tools/perf/util/probe-event.c52
1 files changed, 39 insertions, 13 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 3e30be928101..5e99e52b0179 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -532,26 +532,50 @@ void add_trace_kprobe_events(struct probe_point *probes, int nr_probes)
close(fd);
}
+static void __del_trace_kprobe_event(int fd, struct str_node *ent)
+{
+ char *p;
+ char buf[128];
+
+ /* Convert from perf-probe event to trace-kprobe event */
+ if (e_snprintf(buf, 128, "-:%s", ent->s) < 0)
+ die("Failed to copy event.");
+ p = strchr(buf + 2, ':');
+ if (!p)
+ die("Internal error: %s should have ':' but not.", ent->s);
+ *p = '/';
+
+ write_trace_kprobe_event(fd, buf);
+ printf("Remove event: %s\n", ent->s);
+}
+
static void del_trace_kprobe_event(int fd, const char *group,
const char *event, struct strlist *namelist)
{
char buf[128];
- struct str_node *ent;
+ struct str_node *ent, *n;
+ int found = 0;
if (e_snprintf(buf, 128, "%s:%s", group, event) < 0)
die("Failed to copy event.");
- ent = strlist__find(namelist, buf);
- if (!ent) {
- pr_info("Info: event \"%s\" does not exist, could not remove it.\n", buf);
- return;
- }
- /* Convert from perf-probe event to trace-kprobe event */
- if (e_snprintf(buf, 128, "-:%s/%s", group, event) < 0)
- die("Failed to copy event.");
- write_trace_kprobe_event(fd, buf);
- printf("Remove event: %s:%s\n", group, event);
- strlist__remove(namelist, ent);
+ if (strpbrk(buf, "*?")) { /* Glob-exp */
+ strlist__for_each_safe(ent, n, namelist)
+ if (strglobmatch(ent->s, buf)) {
+ found++;
+ __del_trace_kprobe_event(fd, ent);
+ strlist__remove(namelist, ent);
+ }
+ } else {
+ ent = strlist__find(namelist, buf);
+ if (ent) {
+ found++;
+ __del_trace_kprobe_event(fd, ent);
+ strlist__remove(namelist, ent);
+ }
+ }
+ if (found == 0)
+ pr_info("Info: event \"%s\" does not exist, could not remove it.\n", buf);
}
void del_trace_kprobe_events(struct strlist *dellist)
@@ -570,15 +594,17 @@ void del_trace_kprobe_events(struct strlist *dellist)
str = strdup(ent->s);
if (!str)
die("Failed to copy event.");
+ pr_debug("Parsing: %s\n", str);
p = strchr(str, ':');
if (p) {
group = str;
*p = '\0';
event = p + 1;
} else {
- group = PERFPROBE_GROUP;
+ group = "*";
event = str;
}
+ pr_debug("Group: %s, Event: %s\n", group, event);
del_trace_kprobe_event(fd, group, event, namelist);
free(str);
}