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Diffstat (limited to 'pkg/sentry/kernel/task.go')
-rw-r--r--pkg/sentry/kernel/task.go24
1 files changed, 21 insertions, 3 deletions
diff --git a/pkg/sentry/kernel/task.go b/pkg/sentry/kernel/task.go
index 5aee699e7..037971393 100644
--- a/pkg/sentry/kernel/task.go
+++ b/pkg/sentry/kernel/task.go
@@ -574,6 +574,11 @@ type Task struct {
//
// startTime is protected by mu.
startTime ktime.Time
+
+ // kcov is the kcov instance providing code coverage owned by this task.
+ //
+ // kcov is exclusive to the task goroutine.
+ kcov *Kcov
}
func (t *Task) savePtraceTracer() *Task {
@@ -651,7 +656,9 @@ func (t *Task) Value(key interface{}) interface{} {
case CtxUTSNamespace:
return t.utsns
case CtxIPCNamespace:
- return t.ipcns
+ ipcns := t.IPCNamespace()
+ ipcns.IncRef()
+ return ipcns
case CtxTask:
return t
case auth.CtxCredentials:
@@ -730,7 +737,6 @@ func (t *Task) SyscallRestartBlock() SyscallRestartBlock {
func (t *Task) IsChrooted() bool {
if VFS2Enabled {
realRoot := t.mountNamespaceVFS2.Root()
- defer realRoot.DecRef(t)
root := t.fsContext.RootDirectoryVFS2()
defer root.DecRef(t)
return root != realRoot
@@ -863,7 +869,6 @@ func (t *Task) MountNamespace() *fs.MountNamespace {
func (t *Task) MountNamespaceVFS2() *vfs.MountNamespace {
t.mu.Lock()
defer t.mu.Unlock()
- t.mountNamespaceVFS2.IncRef()
return t.mountNamespaceVFS2
}
@@ -903,3 +908,16 @@ func (t *Task) UID() uint32 {
func (t *Task) GID() uint32 {
return uint32(t.Credentials().EffectiveKGID)
}
+
+// SetKcov sets the kcov instance associated with t.
+func (t *Task) SetKcov(k *Kcov) {
+ t.kcov = k
+}
+
+// ResetKcov clears the kcov instance associated with t.
+func (t *Task) ResetKcov() {
+ if t.kcov != nil {
+ t.kcov.OnTaskExit()
+ t.kcov = nil
+ }
+}