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Subject[tip:perf/core] perf evsel: Carve out event modifier formatting
Commit-ID:  27f18617b01dbbc928e9bd3731d1766222fb7e0d
Gitweb: http://git.kernel.org/tip/27f18617b01dbbc928e9bd3731d1766222fb7e0d
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Mon, 11 Jun 2012 13:33:09 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 19 Jun 2012 13:06:20 -0300

perf evsel: Carve out event modifier formatting

From perf_evsel__hw_name, so that we can use it for the other kinds of
events (tracepoints, software, hw cache, etc).

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-9gmd5wewsrvtny8tzxjfp471@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/evsel.c | 17 +++++++++++------
1 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 9f6cebd..dab8938 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -86,16 +86,15 @@ const char *__perf_evsel__hw_name(u64 config)
return "unknown-hardware";
}

-static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
+static int perf_evsel__add_modifiers(struct perf_evsel *evsel, char *bf, size_t size)
{
- int colon = 0;
+ int colon = 0, r = 0;
struct perf_event_attr *attr = &evsel->attr;
- int r = scnprintf(bf, size, "%s", __perf_evsel__hw_name(attr->config));
bool exclude_guest_default = false;

#define MOD_PRINT(context, mod) do { \
if (!attr->exclude_##context) { \
- if (!colon) colon = r++; \
+ if (!colon) colon = ++r; \
r += scnprintf(bf + r, size - r, "%c", mod); \
} } while(0)

@@ -108,7 +107,7 @@ static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)

if (attr->precise_ip) {
if (!colon)
- colon = r++;
+ colon = ++r;
r += scnprintf(bf + r, size - r, "%.*s", attr->precise_ip, "ppp");
exclude_guest_default = true;
}
@@ -119,10 +118,16 @@ static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
}
#undef MOD_PRINT
if (colon)
- bf[colon] = ':';
+ bf[colon - 1] = ':';
return r;
}

+static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
+{
+ int r = scnprintf(bf, size, "%s", __perf_evsel__hw_name(evsel->attr.config));
+ return r + perf_evsel__add_modifiers(evsel, bf + r, size - r);
+}
+
int perf_evsel__name(struct perf_evsel *evsel, char *bf, size_t size)
{
int ret;

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