diff options
| author | 2017-08-31 08:35:05 -0700 | |
|---|---|---|
| committer | 2017-10-04 15:13:15 -0700 | |
| commit | 0ad0f3059ffca0c6e1de680ca7e68d5150b8b14f (patch) | |
| tree | a6d00e6b3ea28dd81d4c8b6aeddef771946d9520 | |
| parent | 37841495295efaf1e633e05fabd6b9aaeac41f65 (diff) | |
atrace: preempt and irq disable section tracing
IRQ and preempt disabled sections can be visualized in systrace, add the
trace categories to enable these events.
Currently only root users who have permissions to write to these file
will be allowed to run this. At a future time, we can add other users
once we decide on security aspects.
Bug: 67425309
Change-Id: I389c3ab5624a775d310d90b7cb4edf47407aa614
Signed-off-by: Joel Fernandes <joelaf@google.com>
| -rw-r--r-- | cmds/atrace/atrace.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/cmds/atrace/atrace.cpp b/cmds/atrace/atrace.cpp index a48dab97cb..0bdca2d81d 100644 --- a/cmds/atrace/atrace.cpp +++ b/cmds/atrace/atrace.cpp @@ -130,6 +130,14 @@ static const TracingCategory k_categories[] = { { REQ, "events/irq/enable" }, { OPT, "events/ipi/enable" }, } }, + { "irqoff", "IRQ-disabled code section tracing", 0, { + { REQ, "events/preemptirq/irq_enable/enable" }, + { REQ, "events/preemptirq/irq_disable/enable" }, + } }, + { "preemptoff", "Preempt-disabled code section tracing", 0, { + { REQ, "events/preemptirq/preempt_enable/enable" }, + { REQ, "events/preemptirq/preempt_disable/enable" }, + } }, { "i2c", "I2C Events", 0, { { REQ, "events/i2c/enable" }, { REQ, "events/i2c/i2c_read/enable" }, |