mark atrace buffers as uninitialized

The atrace buffer does not need to be zero-initialized every time.

Test: memset calls from atrace_{begin,end}_body are gone
bug 155788214

Change-Id: I8082b6a9e6d6328f4aee3a22137977e9fae21933

parent 2f8bbb97

libcutils/trace-dev.inc

+1 −1

Original line number	Diff line number	Diff line
		@@ -198,7 +198,7 @@ void atrace_update_tags()
		}

		#define WRITE_MSG(format_begin, format_end, name, value) { \
		char buf[ATRACE_MESSAGE_LENGTH]; \
		char buf[ATRACE_MESSAGE_LENGTH] __attribute__((uninitialized)); \
		int pid = getpid(); \
		int len = snprintf(buf, sizeof(buf), format_begin "%s" format_end, pid, \
		name, value); \