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author | Masami Hiramatsu <mhiramat@redhat.com> | 2009-12-15 16:32:10 +0100 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2009-12-15 20:22:03 +0100 |
commit | bbbb521bc61008b280c72ad6e29a8a7558d3acfa (patch) | |
tree | c4abf43779dd0380cb514b52b0ce0047c5f1cf8e /tools/perf/util/probe-event.c | |
parent | perf probe: Use strlist__for_each macros in probe-event.c (diff) | |
download | linux-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.c | 52 |
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); } |