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
diff --git a/libcutils/trace-dev.inc b/libcutils/trace-dev.inc
index 3ec98b3..6543426 100644
--- a/libcutils/trace-dev.inc
+++ b/libcutils/trace-dev.inc
@@ -198,7 +198,7 @@
}
#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); \