[PATCH 1/5] trace-cmd: Use TRACE_DIR envrionment variable if defined

[Yoshihiro YUNOMAE]

From: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>

Use TRACE_DIR environment variable for setting
debugfs/tracing directory if defined. This is
for controlling guest(or remote) ftrace.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Signed-off-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@xxxxxxxxxxx>
---

 trace-util.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/trace-util.c b/trace-util.c
index e128188..d5a3eb4 100644
--- a/trace-util.c
+++ b/trace-util.c
@@ -311,6 +311,15 @@ char *tracecmd_find_tracing_dir(void)
 	char type[100];
 	FILE *fp;
 	
+	tracing_dir = getenv("TRACE_DIR");
+	if (tracing_dir) {
+		tracing_dir = strdup(tracing_dir);
+		if (!tracing_dir)
+			die("malloc");
+		warning("Use environmental tracing directory: %s\n", tracing_dir);
+		return tracing_dir;
+	}
+
 	if ((fp = fopen("/proc/mounts","r")) == NULL) {
 		warning("Can't open /proc/mounts for read");
 		return NULL;


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/