On Wed, 2012-08-22 at 17:43 +0900, Yoshihiro YUNOMAE wrote:
> From: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
>
> Use TRACE_DIR environment variable for setting
TRACING_DIR would be better, as we are searching for /debug/tracing and
not /debug/trace. Perhaps DEBUG_TRACING_DIR would be even better as to
be less of a generic term.
-- Steve
> 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;
>
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