diff options
| author |   Masami Hiramatsu <mhiramat@redhat.com> | 2010-04-12 13:17:15 -0400 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-04-14 17:27:56 -0300 |
| commit | 4984912eb23113a4007940cd09c8351c0623ea5f (patch) | |
| tree | 81e725def8479b4f4c7d7114f30df690784864c1 /tools/perf/util/probe-event.c | |
| parent | tracing/kprobes: Support basic types on dynamic events (diff) | |
| download | linux-dev-4984912eb23113a4007940cd09c8351c0623ea5f.tar.xz linux-dev-4984912eb23113a4007940cd09c8351c0623ea5f.zip | |
perf probe: Query basic types from debuginfo
Query the basic type information (byte-size and signed-flag) from
debuginfo and pass that to kprobe-tracer. This is especially useful
for tracing the members of data structure, because each member has
different byte-size on the memory.
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20100412171715.3790.23730.stgit@localhost6.localdomain6>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/probe-event.c')
| -rw-r--r-- | tools/perf/util/probe-event.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 19de8b77973d..05ca4a959e60 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -740,6 +740,13 @@ static int synthesize_kprobe_trace_arg(struct kprobe_trace_arg *arg, buf += ret; buflen -= ret; } + /* Print argument type */ + if (arg->type) { + ret = e_snprintf(buf, buflen, ":%s", arg->type); + if (ret <= 0) + return ret; + buf += ret; + } return buf - tmp; } @@ -848,6 +855,8 @@ void clear_kprobe_trace_event(struct kprobe_trace_event *tev) free(tev->args[i].name); if (tev->args[i].value) free(tev->args[i].value); + if (tev->args[i].type) + free(tev->args[i].type); ref = tev->args[i].ref; while (ref) { next = ref->next; |