diff options
| author | Andrei Vagin <avagin@google.com> | 2020-08-03 22:06:46 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-08-03 22:08:25 -0700 |
| commit | 25798f214c6d1991916906ea8fca9e7029a8c423 (patch) | |
| tree | e2240d0174da0d95a0a19660ea8c2bb0ebbf0082 /pkg/sentry/kernel/task_clone.go | |
| parent | b5c9ff81922ba785d83eaccc464b0b15a8120798 (diff) | |
Add callbacks to support lazy loading/restoring thread states
PiperOrigin-RevId: 324748508
Diffstat (limited to 'pkg/sentry/kernel/task_clone.go')
| -rw-r--r-- | pkg/sentry/kernel/task_clone.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pkg/sentry/kernel/task_clone.go b/pkg/sentry/kernel/task_clone.go index fe6ba6041..9d7a9128f 100644 --- a/pkg/sentry/kernel/task_clone.go +++ b/pkg/sentry/kernel/task_clone.go @@ -161,6 +161,10 @@ func (t *Task) Clone(opts *CloneOptions) (ThreadID, *SyscallControl, error) { return 0, nil, syserror.EINVAL } + // Pull task registers and FPU state, a cloned task will inherit the + // state of the current task. + t.p.PullFullState(t.MemoryManager().AddressSpace(), t.Arch()) + // "If CLONE_NEWUSER is specified along with other CLONE_NEW* flags in a // single clone(2) or unshare(2) call, the user namespace is guaranteed to // be created first, giving the child (clone(2)) or caller (unshare(2)) |