Check /sys/kernel/tracing for tracefs
When debugfs is not mounted, atrace should look for
tracefs in /sys/kernel/tracing.
Test: CtsAtraceHostTestCases
Bug: 148436518
Change-Id: I45c0e664892bcda277fd9612106ad5216aea0a1b
diff --git a/libcutils/trace-dev.cpp b/libcutils/trace-dev.cpp
index 2ee39d3..9ca1729 100644
--- a/libcutils/trace-dev.cpp
+++ b/libcutils/trace-dev.cpp
@@ -32,6 +32,10 @@
{
atrace_marker_fd = open("/sys/kernel/debug/tracing/trace_marker", O_WRONLY | O_CLOEXEC);
if (atrace_marker_fd == -1) {
+ atrace_marker_fd = open("/sys/kernel/tracing/trace_marker", O_WRONLY | O_CLOEXEC);
+ }
+
+ if (atrace_marker_fd == -1) {
ALOGE("Error opening trace file: %s (%d)", strerror(errno), errno);
atrace_enabled_tags = 0;
} else {