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Date: Fri, 4 Sep 2015 22:06:36 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...nel.org>,
David Ahern <dsahern@...il.com>,
Matt Fleming <matt@...eblueprint.co.uk>,
Namhyung Kim <namhyung@...nel.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Raphael Beamonte <raphael.beamonte@...il.com>,
Steven Rostedt <rostedt@...dmis.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 08/15] perf tools: Switch to tracing_path interface on appropriate places
From: Jiri Olsa <jolsa@...nel.org>
Using tracing_path interface on several places, that more or less
copy the functionality of tracing_path interface.
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Matt Fleming <matt@...eblueprint.co.uk>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Raphael Beamonte <raphael.beamonte@...il.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
Link: http://lkml.kernel.org/r/1441180605-24737-16-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/tests/openat-syscall-all-cpus.c | 9 +++------
tools/perf/tests/openat-syscall.c | 11 ++++-------
tools/perf/tests/parse-events.c | 16 ++--------------
tools/perf/util/probe-file.c | 14 ++------------
4 files changed, 11 insertions(+), 39 deletions(-)
diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c
index a38adf94c731..495d8126b722 100644
--- a/tools/perf/tests/openat-syscall-all-cpus.c
+++ b/tools/perf/tests/openat-syscall-all-cpus.c
@@ -15,6 +15,7 @@ int test__openat_syscall_event_on_all_cpus(void)
cpu_set_t cpu_set;
struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX);
char sbuf[STRERR_BUFSIZE];
+ char errbuf[BUFSIZ];
if (threads == NULL) {
pr_debug("thread_map__new\n");
@@ -31,12 +32,8 @@ int test__openat_syscall_event_on_all_cpus(void)
evsel = perf_evsel__newtp("syscalls", "sys_enter_openat");
if (evsel == NULL) {
- if (tracefs__configured())
- pr_debug("is tracefs mounted on /sys/kernel/tracing?\n");
- else if (debugfs__configured())
- pr_debug("is debugfs mounted on /sys/kernel/debug?\n");
- else
- pr_debug("Neither tracefs or debugfs is enabled in this kernel\n");
+ tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat");
+ pr_err("%s\n", errbuf);
goto out_thread_map_delete;
}
diff --git a/tools/perf/tests/openat-syscall.c b/tools/perf/tests/openat-syscall.c
index 8048c7d7cd67..08ac9d94a050 100644
--- a/tools/perf/tests/openat-syscall.c
+++ b/tools/perf/tests/openat-syscall.c
@@ -1,4 +1,4 @@
-#include <api/fs/fs.h>
+#include <api/fs/tracing_path.h>
#include "thread_map.h"
#include "evsel.h"
#include "debug.h"
@@ -11,6 +11,7 @@ int test__openat_syscall_event(void)
unsigned int nr_openat_calls = 111, i;
struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX);
char sbuf[STRERR_BUFSIZE];
+ char errbuf[BUFSIZ];
if (threads == NULL) {
pr_debug("thread_map__new\n");
@@ -19,12 +20,8 @@ int test__openat_syscall_event(void)
evsel = perf_evsel__newtp("syscalls", "sys_enter_openat");
if (evsel == NULL) {
- if (tracefs__configured())
- pr_debug("is tracefs mounted on /sys/kernel/tracing?\n");
- else if (debugfs__configured())
- pr_debug("is debugfs mounted on /sys/kernel/debug?\n");
- else
- pr_debug("Neither tracefs or debugfs is enabled in this kernel\n");
+ tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat");
+ pr_err("%s\n", errbuf);
goto out_thread_map_delete;
}
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 91fbfd593c4a..3a2ebe666192 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -1261,23 +1261,11 @@ test__checkevent_breakpoint_len_rw_modifier(struct perf_evlist *evlist)
static int count_tracepoints(void)
{
- char events_path[PATH_MAX];
struct dirent *events_ent;
- const char *mountpoint;
DIR *events_dir;
int cnt = 0;
- mountpoint = tracefs__mountpoint();
- if (mountpoint) {
- scnprintf(events_path, PATH_MAX, "%s/events",
- mountpoint);
- } else {
- mountpoint = debugfs__mountpoint();
- scnprintf(events_path, PATH_MAX, "%s/tracing/events",
- mountpoint);
- }
-
- events_dir = opendir(events_path);
+ events_dir = opendir(tracing_events_path);
TEST_ASSERT_VAL("Can't open events dir", events_dir);
@@ -1294,7 +1282,7 @@ static int count_tracepoints(void)
continue;
scnprintf(sys_path, PATH_MAX, "%s/%s",
- events_path, events_ent->d_name);
+ tracing_events_path, events_ent->d_name);
sys_dir = opendir(sys_path);
TEST_ASSERT_VAL("Can't open sys dir", sys_dir);
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index 499c83ccd44b..89dbeb92c68e 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -22,7 +22,7 @@
#include "color.h"
#include "symbol.h"
#include "thread.h"
-#include <api/fs/fs.h>
+#include <api/fs/tracing_path.h>
#include "probe-event.h"
#include "probe-file.h"
#include "session.h"
@@ -72,21 +72,11 @@ static void print_both_open_warning(int kerr, int uerr)
static int open_probe_events(const char *trace_file, bool readwrite)
{
char buf[PATH_MAX];
- const char *__debugfs;
const char *tracing_dir = "";
int ret;
- __debugfs = tracefs__mountpoint();
- if (__debugfs == NULL) {
- tracing_dir = "tracing/";
-
- __debugfs = debugfs__mountpoint();
- if (__debugfs == NULL)
- return -ENOTSUP;
- }
-
ret = e_snprintf(buf, PATH_MAX, "%s/%s%s",
- __debugfs, tracing_dir, trace_file);
+ tracing_path, tracing_dir, trace_file);
if (ret >= 0) {
pr_debug("Opening %s write=%d\n", buf, readwrite);
if (readwrite && !probe_event_dry_run)
--
2.1.0
--
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