From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org,
Masami Hiramatsu <mhiramat@kernel.org>,
Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>,
Brendan Gregg <brendan.d.gregg@gmail.com>,
Hemant Kumar <hemant@linux.vnet.ibm.com>,
Namhyung Kim <namhyung@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 06/19] perf probe: Uncomment and export synthesize_perf_probe_point()
Date: Wed, 15 Jun 2016 15:13:15 -0300 [thread overview]
Message-ID: <1466014408-12086-7-git-send-email-acme@kernel.org> (raw)
In-Reply-To: <1466014408-12086-1-git-send-email-acme@kernel.org>
From: Masami Hiramatsu <mhiramat@kernel.org>
Uncomment and export synthesize_perf_probe_point() which had once
introduced but has been disabled for a long time. This renews the code
and re-enable it.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20160608092949.3116.21958.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/probe-event.c | 39 ++++++++++++++++++++++-----------------
tools/perf/util/probe-event.h | 1 +
2 files changed, 23 insertions(+), 17 deletions(-)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 84f4b2b32ab7..cbc8a8bf0f36 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -67,7 +67,6 @@ int e_snprintf(char *str, size_t size, const char *format, ...)
return ret;
}
-static char *synthesize_perf_probe_point(struct perf_probe_point *pp);
static struct machine *host_machine;
/* Initialize symbol maps and path of vmlinux/modules */
@@ -1716,7 +1715,7 @@ out:
}
/* Compose only probe point (not argument) */
-static char *synthesize_perf_probe_point(struct perf_probe_point *pp)
+char *synthesize_perf_probe_point(struct perf_probe_point *pp)
{
struct strbuf buf;
char *tmp, *ret = NULL;
@@ -1755,30 +1754,36 @@ out:
return ret;
}
-#if 0
char *synthesize_perf_probe_command(struct perf_probe_event *pev)
{
- char *buf;
- int i, len, ret;
+ struct strbuf buf;
+ char *tmp, *ret = NULL;
+ int i;
- buf = synthesize_perf_probe_point(&pev->point);
- if (!buf)
+ if (strbuf_init(&buf, 64))
return NULL;
+ if (pev->event)
+ if (strbuf_addf(&buf, "%s:%s=", pev->group ?: PERFPROBE_GROUP,
+ pev->event) < 0)
+ goto out;
+
+ tmp = synthesize_perf_probe_point(&pev->point);
+ if (!tmp || strbuf_addstr(&buf, tmp) < 0)
+ goto out;
+ free(tmp);
- len = strlen(buf);
for (i = 0; i < pev->nargs; i++) {
- ret = e_snprintf(&buf[len], MAX_CMDLEN - len, " %s",
- pev->args[i].name);
- if (ret <= 0) {
- free(buf);
- return NULL;
- }
- len += ret;
+ tmp = synthesize_perf_probe_arg(pev->args + i);
+ if (!tmp || strbuf_addf(&buf, " %s", tmp) < 0)
+ goto out;
+ free(tmp);
}
- return buf;
+ ret = strbuf_detach(&buf, NULL);
+out:
+ strbuf_release(&buf);
+ return ret;
}
-#endif
static int __synthesize_probe_trace_arg_ref(struct probe_trace_arg_ref *ref,
struct strbuf *buf, int depth)
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 367f886cfe00..0b024ba789e3 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -121,6 +121,7 @@ int parse_probe_trace_command(const char *cmd, struct probe_trace_event *tev);
char *synthesize_perf_probe_command(struct perf_probe_event *pev);
char *synthesize_probe_trace_command(struct probe_trace_event *tev);
char *synthesize_perf_probe_arg(struct perf_probe_arg *pa);
+char *synthesize_perf_probe_point(struct perf_probe_point *pp);
int perf_probe_event__copy(struct perf_probe_event *dst,
struct perf_probe_event *src);
--
2.5.5
next prev parent reply other threads:[~2016-06-15 18:17 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-15 18:13 [GIT PULL 00/19] perf/core improvements and fixes Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 01/19] perf config: Handle NULL at perf_config_set__delete() Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 02/19] perf tools: Fix rm_rf() to handle non-regular files correctly Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 03/19] perf probe: Fix to add NULL check for strndup Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 04/19] perf buildid: Rename and export build_id_cache__cachedir() Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 05/19] perf probe: Add perf_probe_event__copy() Arnaldo Carvalho de Melo
2016-06-15 18:13 ` Arnaldo Carvalho de Melo [this message]
2016-06-15 18:13 ` [PATCH 07/19] perf unwind: Fix compile error for static cross build Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 08/19] perf mem: Add --ldlat option Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 09/19] perf tools: Fix Data Object sort entry width index Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 10/19] perf tui: Separate hierarchy and standard headers output Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 11/19] perf stdio: Separate " Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 12/19] perf stdio: Separate hierarchy " Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 13/19] perf stdio: Separate standard " Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 14/19] perf stdio: Do not pass hists in hist_entry__fprintf Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 15/19] perf stdio: Add use_callchain parameter to hists__fprintf Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 16/19] perf hists: Replace perf_evsel arg perf_hpp_fmt's header callback Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 17/19] perf hists: Replace perf_evsel arg perf_hpp_fmt's width callback Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 18/19] perf probe: Introduce perf_cache interfaces Arnaldo Carvalho de Melo
2016-06-15 18:13 ` [PATCH 19/19] perf probe: Add --cache option to cache the probe definitions Arnaldo Carvalho de Melo
2016-06-16 6:29 ` [GIT PULL 00/19] perf/core improvements and fixes Jiri Olsa
2016-06-16 19:54 ` Arnaldo Carvalho de Melo
2016-06-16 8:29 ` Ingo Molnar
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