Log more timing information from init.

Also make important events in init's life NOTICE rather than INFO,
and ensure that NOTICE events actually make it to the kernel log.

Also fix the logging so that if you have a printf format string
error, the compiler now catches it.

Also give messages from init, ueventd, and watchdogd distinct tags.
(Previously they'd all call themselves "init", and dmesg doesn't
include pids, so you couldn't untangle them.)

Also include the tag in SELinux messages.

Bug: 19544788
Change-Id: Ica6daea065bfdb80155c52c0b06f346a7df208fe

1 files changed, 9 insertions, 15 deletions

diff --git a/init/util.cpp b/init/util.cpp
index 8b238d47b..3b49b30d3 100644
--- a/init/util.cpp
+++ b/init/util.cpp
@@ -258,22 +258,16 @@ int mtd_name_to_number(const char *name)
     return -1;
 }
 
-/*
- * gettime() - returns the time in seconds of the system's monotonic clock or
- * zero on error.
- */
-time_t gettime(void)
-{
-    struct timespec ts;
-    int ret;
-
-    ret = clock_gettime(CLOCK_MONOTONIC, &ts);
-    if (ret < 0) {
-        ERROR("clock_gettime(CLOCK_MONOTONIC) failed: %s\n", strerror(errno));
-        return 0;
-    }
+time_t gettime() {
+    timespec now;
+    clock_gettime(CLOCK_MONOTONIC, &now);
+    return now.tv_sec;
+}
 
-    return ts.tv_sec;
+uint64_t gettime_ns() {
+    timespec now;
+    clock_gettime(CLOCK_MONOTONIC, &now);
+    return static_cast<uint64_t>(now.tv_sec) * UINT64_C(1000000000) + now.tv_nsec;
 }
 
 int mkdir_recursive(const char *pathname, mode_t mode)