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Date: Mon, 21 Feb 2011 00:57:20 +0800
From: Lin Ming <ming.m.lin@...el.com>
To: Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Ingo Molnar <mingo@...e.hu>,
Stephane Eranian <eranian@...gle.com>,
Andi Kleen <andi@...stfloor.org>
Cc: linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/6] Add support to the perf tool to specify extra values
for raw events and pass them to the kernel.
From: Andi Kleen <ak@...ux.intel.com>
The new format is -e rXXXX[,YYYY]
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Lin Ming <ming.m.lin@...el.com>
---
tools/perf/builtin-report.c | 7 ++++---
tools/perf/util/parse-events.c | 24 +++++++++++++++++++-----
tools/perf/util/parse-events.h | 2 +-
tools/perf/util/ui/browsers/hists.c | 3 ++-
4 files changed, 26 insertions(+), 10 deletions(-)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index dddcc7e..724f65b 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -201,7 +201,8 @@ static int process_read_event(union perf_event *event,
attr = perf_header__find_attr(event->read.id, &session->header);
if (show_threads) {
- const char *name = attr ? __event_name(attr->type, attr->config)
+ const char *name = attr ? __event_name(attr->type, attr->config,
+ 0)
: "unknown";
perf_read_values_add_value(&show_threads_values,
event->read.pid, event->read.tid,
@@ -211,7 +212,7 @@ static int process_read_event(union perf_event *event,
}
dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
- attr ? __event_name(attr->type, attr->config) : "FAIL",
+ attr ? __event_name(attr->type, attr->config, 0) : "FAIL",
event->read.value);
return 0;
@@ -291,7 +292,7 @@ static int hists__tty_browse_tree(struct rb_root *tree, const char *help)
const char *evname = NULL;
if (rb_first(&hists->entries) != rb_last(&hists->entries))
- evname = __event_name(hists->type, hists->config);
+ evname = __event_name(hists->type, hists->config, 0);
hists__fprintf_nr_sample_events(hists, evname, stdout);
hists__fprintf(hists, NULL, false, stdout);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 54a7e26..9e46ade 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -271,15 +271,18 @@ const char *event_name(struct perf_evsel *evsel)
if (evsel->name)
return evsel->name;
- return __event_name(type, config);
+ return __event_name(type, config, evsel->attr.event_extra);
}
-const char *__event_name(int type, u64 config)
+const char *__event_name(int type, u64 config, u64 extra)
{
static char buf[32];
+ int n;
if (type == PERF_TYPE_RAW) {
- sprintf(buf, "raw 0x%" PRIx64, config);
+ n = sprintf(buf, "raw 0x%" PRIx64, config);
+ if (extra)
+ sprintf(buf + n, ",%#" PRIx64, extra);
return buf;
}
@@ -666,9 +669,20 @@ parse_raw_event(const char **strp, struct perf_event_attr *attr)
return EVT_FAILED;
n = hex2u64(str + 1, &config);
if (n > 0) {
- *strp = str + n + 1;
+ str += n + 1;
+ *strp = str;
attr->type = PERF_TYPE_RAW;
attr->config = config;
+
+ if (*str++ == ',') {
+ n = hex2u64(str + 1, &config);
+ if (n > 0) {
+ attr->event_extra = config;
+ str += n + 1;
+ *strp = str;
+ }
+ }
+
return EVT_HANDLED;
}
return EVT_FAILED;
@@ -1035,7 +1049,7 @@ void print_events(const char *event_glob)
printf("\n");
printf(" %-42s [%s]\n",
- "rNNN (see 'perf list --help' on how to encode it)",
+ "rNNN[,EEE] (see 'perf list --help' on how to encode it)",
event_type_descriptors[PERF_TYPE_RAW]);
printf("\n");
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 212f88e..0fe700c 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -21,7 +21,7 @@ extern struct tracepoint_path *tracepoint_id_to_path(u64 config);
extern bool have_tracepoints(struct list_head *evlist);
const char *event_name(struct perf_evsel *event);
-extern const char *__event_name(int type, u64 config);
+extern const char *__event_name(int type, u64 config, u64 extra);
extern int parse_events(const struct option *opt, const char *str, int unset);
extern int parse_filter(const struct option *opt, const char *str, int unset);
diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c
index 294b495..74482eb 100644
--- a/tools/perf/util/ui/browsers/hists.c
+++ b/tools/perf/util/ui/browsers/hists.c
@@ -992,7 +992,8 @@ int hists__tui_browse_tree(struct rb_root *self, const char *help, int evidx)
while (nd) {
struct hists *hists = rb_entry(nd, struct hists, rb_node);
- const char *ev_name = __event_name(hists->type, hists->config);
+ const char *ev_name = __event_name(hists->type, hists->config,
+ 0);
key = hists__browse(hists, help, ev_name, evidx);
switch (key) {
--
1.7.3
--
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