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perf tools: Switch to tracing_path interface on appropriate places

Browse source 
Using tracing_path interface on several places, that more or less
copy the functionality of tracing_path interface.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Raphael Beamonte <raphael.beamonte@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1441180605-24737-16-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-09-02 09:56:45 +02:00 • committed by Arnaldo Carvalho de Melo
parent 60a1133a5b
commit fbf99625b8
4 changed files with 11 additions and 39 deletions
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9
tools/perf/tests/openat-syscall-all-cpus.c
View file

@ -15,6 +15,7 @@ int test__openat_syscall_event_on_all_cpus(void)
cpu_set_t cpu_set; cpu_set_t cpu_set;
struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX);
char sbuf[STRERR_BUFSIZE]; char sbuf[STRERR_BUFSIZE];
char errbuf[BUFSIZ];
if (threads == NULL) { if (threads == NULL) {
pr_debug("thread_map__new\n"); 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"); evsel = perf_evsel__newtp("syscalls", "sys_enter_openat");
if (evsel == NULL) { if (evsel == NULL) {
if (tracefs__configured()) tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat");
pr_debug("is tracefs mounted on /sys/kernel/tracing?\n"); pr_err("%s\n", errbuf);
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");
goto out_thread_map_delete; goto out_thread_map_delete;
} }

11
tools/perf/tests/openat-syscall.c
View file

@ -1,4 +1,4 @@
#include <api/fs/fs.h> #include <api/fs/tracing_path.h>
#include "thread_map.h" #include "thread_map.h"
#include "evsel.h" #include "evsel.h"
#include "debug.h" #include "debug.h"
@ -11,6 +11,7 @@ int test__openat_syscall_event(void)
unsigned int nr_openat_calls = 111, i; unsigned int nr_openat_calls = 111, i;
struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX);
char sbuf[STRERR_BUFSIZE]; char sbuf[STRERR_BUFSIZE];
char errbuf[BUFSIZ];
if (threads == NULL) { if (threads == NULL) {
pr_debug("thread_map__new\n"); pr_debug("thread_map__new\n");
@ -19,12 +20,8 @@ int test__openat_syscall_event(void)
evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); evsel = perf_evsel__newtp("syscalls", "sys_enter_openat");
if (evsel == NULL) { if (evsel == NULL) {
if (tracefs__configured()) tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat");
pr_debug("is tracefs mounted on /sys/kernel/tracing?\n"); pr_err("%s\n", errbuf);
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");
goto out_thread_map_delete; goto out_thread_map_delete;
} }

16
tools/perf/tests/parse-events.c
View file

@ -1261,23 +1261,11 @@ test__checkevent_breakpoint_len_rw_modifier(struct perf_evlist *evlist)
static int count_tracepoints(void) static int count_tracepoints(void)
{ {
char events_path[PATH_MAX];
struct dirent *events_ent; struct dirent *events_ent;
const char *mountpoint;
DIR *events_dir; DIR *events_dir;
int cnt = 0; int cnt = 0;
mountpoint = tracefs__mountpoint(); events_dir = opendir(tracing_events_path);
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);
TEST_ASSERT_VAL("Can't open events dir", events_dir); TEST_ASSERT_VAL("Can't open events dir", events_dir);
@ -1294,7 +1282,7 @@ static int count_tracepoints(void)
continue; continue;
scnprintf(sys_path, PATH_MAX, "%s/%s", 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); sys_dir = opendir(sys_path);
TEST_ASSERT_VAL("Can't open sys dir", sys_dir); TEST_ASSERT_VAL("Can't open sys dir", sys_dir);

14
tools/perf/util/probe-file.c
View file

@ -22,7 +22,7 @@
#include "color.h" #include "color.h"
#include "symbol.h" #include "symbol.h"
#include "thread.h" #include "thread.h"
#include <api/fs/fs.h> #include <api/fs/tracing_path.h>
#include "probe-event.h" #include "probe-event.h"
#include "probe-file.h" #include "probe-file.h"
#include "session.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) static int open_probe_events(const char *trace_file, bool readwrite)
{ {
char buf[PATH_MAX]; char buf[PATH_MAX];
const char *__debugfs;
const char *tracing_dir = ""; const char *tracing_dir = "";
int ret; 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", ret = e_snprintf(buf, PATH_MAX, "%s/%s%s",
__debugfs, tracing_dir, trace_file); tracing_path, tracing_dir, trace_file);
if (ret >= 0) { if (ret >= 0) {
pr_debug("Opening %s write=%d\n", buf, readwrite); pr_debug("Opening %s write=%d\n", buf, readwrite);
if (readwrite && !probe_event_dry_run) if (readwrite && !probe_event_dry_run)