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Commit 65d4b265 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
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perf tools: Move tracing_path stuff under same namespace 



Renaming all functions touching tracing_path under same namespace. New
interface is:

  char tracing_path[];
  - tracing mount path

  char tracing_events_path[];
  - tracing mount/events path

  void tracing_path_set(const char *mountpoint);
  - setting directly tracing_path(_events), used by --debugfs-dir option

  const char *tracing_path_mount(void);
  - initial setup of tracing_(events)_path, called from perf.c
    mounts debugfs/tracefs if needed and possible

  char *get_tracing_file(const char *name);
  void put_tracing_file(char *file);
  - get/put tracing file path

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Raphael Beamonte <raphael.beamonte@gmail.com>
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: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1441180605-24737-4-git-send-email-jolsa@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent f6a09af7

tools/perf/perf.c

+6 −4
Original line number Diff line number Diff line
@@ -214,7 +214,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) 
				fprintf(stderr, "No directory given for --debugfs-dir.\n");

				usage(perf_usage_string);

			}

			perf_debugfs_set_path((*argv)[1]);

			tracing_path_set((*argv)[1]);

			if (envchanged)

				*envchanged = 1;

			(*argv)++;
@@ -230,7 +230,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) 
			(*argv)++;

			(*argc)--;

		} else if (!prefixcmp(cmd, CMD_DEBUGFS_DIR)) {

			perf_debugfs_set_path(cmd + strlen(CMD_DEBUGFS_DIR));

			tracing_path_set(cmd + strlen(CMD_DEBUGFS_DIR));

			fprintf(stderr, "dir: %s\n", tracing_path);

			if (envchanged)

				*envchanged = 1;
@@ -517,8 +517,10 @@ int main(int argc, const char **argv) 
	cmd = perf_extract_argv0_path(argv[0]);

	if (!cmd)

		cmd = "perf-help";

	/* get debugfs mount point from /proc/mounts */

	perf_debugfs_mount();



	/* get debugfs/tracefs mount point from /proc/mounts */

	tracing_path_mount();



	/*

	 * "perf-xxxx" is the same as "perf xxxx", but we obviously:

	 *

tools/perf/util/util.c

+10 −10
Original line number Diff line number Diff line
@@ -390,7 +390,7 @@ void set_term_quiet_input(struct termios *old) 
	tcsetattr(0, TCSANOW, &tc);

}



static void set_tracing_events_path(const char *tracing, const char *mountpoint)

static void __tracing_path_set(const char *tracing, const char *mountpoint)

{

	snprintf(tracing_path, sizeof(tracing_path), "%s/%s",

		 mountpoint, tracing);
@@ -398,7 +398,7 @@ static void set_tracing_events_path(const char *tracing, const char *mountpoint) 
		 mountpoint, tracing, "events");

}



static const char *__perf_tracefs_mount(void)

static const char *tracing_path_tracefs_mount(void)

{

	const char *mnt;
@@ -406,12 +406,12 @@ static const char *__perf_tracefs_mount(void) 
	if (!mnt)

		return NULL;



	set_tracing_events_path("", mnt);

	__tracing_path_set("", mnt);



	return mnt;

}



static const char *__perf_debugfs_mount(void)

static const char *tracing_path_debugfs_mount(void)

{

	const char *mnt;
@@ -419,27 +419,27 @@ static const char *__perf_debugfs_mount(void) 
	if (!mnt)

		return NULL;



	set_tracing_events_path("tracing/", mnt);

	__tracing_path_set("tracing/", mnt);



	return mnt;

}



const char *perf_debugfs_mount(void)

const char *tracing_path_mount(void)

{

	const char *mnt;



	mnt = __perf_tracefs_mount();

	mnt = tracing_path_tracefs_mount();

	if (mnt)

		return mnt;



	mnt = __perf_debugfs_mount();

	mnt = tracing_path_debugfs_mount();



	return mnt;

}



void perf_debugfs_set_path(const char *mntpt)

void tracing_path_set(const char *mntpt)

{

	set_tracing_events_path("tracing/", mntpt);

	__tracing_path_set("tracing/", mntpt);

}



char *get_tracing_file(const char *name)

tools/perf/util/util.h

+2 −2
Original line number Diff line number Diff line
@@ -85,8 +85,8 @@ extern const char *graph_dotted_line; 
extern char buildid_dir[];

extern char tracing_path[];

extern char tracing_events_path[];

extern void perf_debugfs_set_path(const char *mountpoint);

const char *perf_debugfs_mount(void);

extern void tracing_path_set(const char *mountpoint);

const char *tracing_path_mount(void);

char *get_tracing_file(const char *name);

void put_tracing_file(char *file);