How to use ARM ETM/ETB at linux?
From: Linus Walleij <hidden>
Date: 2012-06-28 15:42:54
On Thu, Jun 21, 2012 at 7:38 AM, Frank Li [off-list ref] wrote:
Anyone use ARM ETM/ETB before?
I know for sure that Arve has been making good use of the ETB+ETB, since there are some nice patches for it in the Android source tree, but I don't know how he's using it :-) John Stultz recently submitted some of Arves patches upstream so let's ask these gentlemen how they use it. Yours, Linus Walleij
quoted hunk ↗ jump to hunk
I run. echo 1 > /sys/devices/etm/trace_running root at freescale /$ echo v >/proc/sysrq-trigger SysRq : etm Trace buffer contents length: 4--- ETB buffer begin ---01000000000000000000000000000000--- ETB buffer end ---best regards Frank Li
Yours, Linus Walleij