diff options
| author | Nicolas Lacasse <nlacasse@google.com> | 2019-03-27 12:40:18 -0700 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2019-03-27 12:41:27 -0700 |
| commit | 2d355f0e8fb8f7e72e6448fd4fcc4e79cdb6ba72 (patch) | |
| tree | 18803e4d5278c08b1133d3444478e89a21a08752 /pkg/sentry/fs | |
| parent | 5d94c893ae38f09f5132ab43d48204ab49121960 (diff) | |
Add start time to /proc/<pid>/stat.
The start time is the number of clock ticks between the boot time and
application start time.
PiperOrigin-RevId: 240619475
Change-Id: Ic8bd7a73e36627ed563988864b0c551c052492a5
Diffstat (limited to 'pkg/sentry/fs')
| -rw-r--r-- | pkg/sentry/fs/proc/task.go | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/pkg/sentry/fs/proc/task.go b/pkg/sentry/fs/proc/task.go index 70578d3fa..335003dd8 100644 --- a/pkg/sentry/fs/proc/task.go +++ b/pkg/sentry/fs/proc/task.go @@ -461,7 +461,14 @@ func (s *taskStatData) ReadSeqFileData(ctx context.Context, h seqfile.SeqHandle) fmt.Fprintf(&buf, "%d %d ", linux.ClockTFromDuration(cputime.UserTime), linux.ClockTFromDuration(cputime.SysTime)) fmt.Fprintf(&buf, "%d %d ", s.t.Priority(), s.t.Niceness()) fmt.Fprintf(&buf, "%d ", s.t.ThreadGroup().Count()) - fmt.Fprintf(&buf, "0 0 " /* itrealvalue starttime */) + + // itrealvalue. Since kernel 2.6.17, this field is no longer + // maintained, and is hard coded as 0. + fmt.Fprintf(&buf, "0 ") + + // Start time is relative to boot time, expressed in clock ticks. + fmt.Fprintf(&buf, "%d ", linux.ClockTFromDuration(s.t.StartTime().Sub(s.t.Kernel().Timekeeper().BootTime()))) + var vss, rss uint64 s.t.WithMuLocked(func(t *kernel.Task) { if mm := t.MemoryManager(); mm != nil { |