On Fri, 21 Jun 2013, Toralf Förster wrote:
> Wasn't aware of this message before - and got it now when running
> trinity within a 32 bit user-mode-linux.
>
> Is that directory helpful for trinity ?
It is used when coming up with possible events for the perf_event_open()
syscall.
It's not fatal if the directory doesn't exist.
I should probably remove the error message (or make it only show up at
high verbosity levels?).
A patch that removes the message is included below.
diff --git a/syscalls/perf_event_open.c b/syscalls/perf_event_open.c
index cf10134..ef8cb4f 100644
--- a/syscalls/perf_event_open.c
+++ b/syscalls/perf_event_open.c
@@ -223,9 +223,6 @@ static int init_pmus(void) {
dir=opendir("/sys/bus/event_source/devices");
if (dir==NULL) {
- fprintf(stderr,"Unable to opendir "
- "/sys/bus/event_source/devices : %s\n",
- strerror(errno));
return -1;
}
