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Message-Id: <1362085527-25326-13-git-send-email-acme@infradead.org>
Date: Thu, 28 Feb 2013 18:05:24 -0300
From: Arnaldo Carvalho de Melo <acme@...radead.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Borislav Petkov <bp@...e.de>,
Steven Rostedt <rostedt@...dmis.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 12/15] perf tools: Extract perf-specific stuff from debugfs.c
From: Borislav Petkov <bp@...e.de>
Move them to util.c and simplify code a bit.
Signed-off-by: Borislav Petkov <bp@...e.de>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Link: http://lkml.kernel.org/r/1361374353-30385-6-git-send-email-bp@alien8.de
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/lib/lk/debugfs.c | 15 ---------------
tools/lib/lk/debugfs.h | 2 --
tools/perf/perf.c | 6 +++---
tools/perf/util/trace-event-info.c | 2 +-
tools/perf/util/util.c | 27 +++++++++++++++++++++++++++
tools/perf/util/util.h | 7 +++++--
6 files changed, 36 insertions(+), 23 deletions(-)
diff --git a/tools/lib/lk/debugfs.c b/tools/lib/lk/debugfs.c
index 9cda7a6..099e7cd 100644
--- a/tools/lib/lk/debugfs.c
+++ b/tools/lib/lk/debugfs.c
@@ -11,7 +11,6 @@
#include "debugfs.h"
char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug";
-char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events";
static const char * const debugfs_known_mountpoints[] = {
"/sys/kernel/debug/",
@@ -75,14 +74,7 @@ int debugfs_valid_mountpoint(const char *debugfs)
return 0;
}
-static void debugfs_set_tracing_events_path(const char *mountpoint)
-{
- snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s",
- mountpoint, "tracing/events");
-}
-
/* mount the debugfs somewhere if it's not mounted */
-
char *debugfs_mount(const char *mountpoint)
{
/* see if it's already mounted */
@@ -105,12 +97,5 @@ char *debugfs_mount(const char *mountpoint)
debugfs_found = true;
strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint));
out:
- debugfs_set_tracing_events_path(debugfs_mountpoint);
return debugfs_mountpoint;
}
-
-void debugfs_set_path(const char *mountpoint)
-{
- snprintf(debugfs_mountpoint, sizeof(debugfs_mountpoint), "%s", mountpoint);
- debugfs_set_tracing_events_path(mountpoint);
-}
diff --git a/tools/lib/lk/debugfs.h b/tools/lib/lk/debugfs.h
index bc5ad2d..935c59b 100644
--- a/tools/lib/lk/debugfs.h
+++ b/tools/lib/lk/debugfs.h
@@ -23,9 +23,7 @@
const char *debugfs_find_mountpoint(void);
int debugfs_valid_mountpoint(const char *debugfs);
char *debugfs_mount(const char *mountpoint);
-void debugfs_set_path(const char *mountpoint);
extern char debugfs_mountpoint[];
-extern char tracing_events_path[];
#endif /* __LK_DEBUGFS_H__ */
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index f53b735..f6ba7b7 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -193,13 +193,13 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
fprintf(stderr, "No directory given for --debugfs-dir.\n");
usage(perf_usage_string);
}
- debugfs_set_path((*argv)[1]);
+ perf_debugfs_set_path((*argv)[1]);
if (envchanged)
*envchanged = 1;
(*argv)++;
(*argc)--;
} else if (!prefixcmp(cmd, CMD_DEBUGFS_DIR)) {
- debugfs_set_path(cmd + strlen(CMD_DEBUGFS_DIR));
+ perf_debugfs_set_path(cmd + strlen(CMD_DEBUGFS_DIR));
fprintf(stderr, "dir: %s\n", debugfs_mountpoint);
if (envchanged)
*envchanged = 1;
@@ -461,7 +461,7 @@ int main(int argc, const char **argv)
if (!cmd)
cmd = "perf-help";
/* get debugfs mount point from /proc/mounts */
- debugfs_mount(NULL);
+ perf_debugfs_mount(NULL);
/*
* "perf-xxxx" is the same as "perf xxxx", but we obviously:
*
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index 36b9b49..5c1509a 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -80,7 +80,7 @@ static void *malloc_or_die(unsigned int size)
static const char *find_debugfs(void)
{
- const char *path = debugfs_mount(NULL);
+ const char *path = perf_debugfs_mount(NULL);
if (!path)
die("Your kernel not support debugfs filesystem");
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 805d1f5..59d868a 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -17,6 +17,8 @@ bool test_attr__enabled;
bool perf_host = true;
bool perf_guest = false;
+char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events";
+
void event_attr_init(struct perf_event_attr *attr)
{
if (!perf_host)
@@ -242,3 +244,28 @@ void get_term_dimensions(struct winsize *ws)
ws->ws_row = 25;
ws->ws_col = 80;
}
+
+static void set_tracing_events_path(const char *mountpoint)
+{
+ snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s",
+ mountpoint, "tracing/events");
+}
+
+const char *perf_debugfs_mount(const char *mountpoint)
+{
+ const char *mnt;
+
+ mnt = debugfs_mount(mountpoint);
+ if (!mnt)
+ return NULL;
+
+ set_tracing_events_path(mnt);
+
+ return mnt;
+}
+
+void perf_debugfs_set_path(const char *mntpt)
+{
+ snprintf(debugfs_mountpoint, strlen(debugfs_mountpoint), "%s", mntpt);
+ set_tracing_events_path(mntpt);
+}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 09b4c26..6a0781c 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -73,10 +73,14 @@
#include <linux/magic.h>
#include "types.h"
#include <sys/ttydefaults.h>
+#include <lk/debugfs.h>
extern const char *graph_line;
extern const char *graph_dotted_line;
extern char buildid_dir[];
+extern char tracing_events_path[];
+extern void perf_debugfs_set_path(const char *mountpoint);
+const char *perf_debugfs_mount(const char *mountpoint);
/* On most systems <limits.h> would have given us this, but
* not on some systems (e.g. GNU/Hurd).
@@ -274,5 +278,4 @@ extern unsigned int page_size;
struct winsize;
void get_term_dimensions(struct winsize *ws);
-
-#endif
+#endif /* GIT_COMPAT_UTIL_H */
--
1.8.1.1.361.gec3ae6e
--
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