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authorRahat Mahmood <rahat@google.com>2020-09-15 23:37:04 -0700
committergVisor bot <gvisor-bot@google.com>2020-09-15 23:38:57 -0700
commitd201feb8c5e425bfa8abc905f24d49b268520aec (patch)
treeb3aa642d325e2b95bb1a6d5a2f934b6683f61ede /pkg/sentry/kernel/task_futex.go
parentdcd532e2e416aa81ca9ac42dc153731855f91418 (diff)
Enable automated marshalling for the syscall package.
PiperOrigin-RevId: 331940975
Diffstat (limited to 'pkg/sentry/kernel/task_futex.go')
-rw-r--r--pkg/sentry/kernel/task_futex.go7
1 files changed, 4 insertions, 3 deletions
diff --git a/pkg/sentry/kernel/task_futex.go b/pkg/sentry/kernel/task_futex.go
index 4b535c949..c80391475 100644
--- a/pkg/sentry/kernel/task_futex.go
+++ b/pkg/sentry/kernel/task_futex.go
@@ -16,6 +16,7 @@ package kernel
import (
"gvisor.dev/gvisor/pkg/abi/linux"
+ "gvisor.dev/gvisor/pkg/marshal/primitive"
"gvisor.dev/gvisor/pkg/sentry/kernel/futex"
"gvisor.dev/gvisor/pkg/usermem"
)
@@ -87,7 +88,7 @@ func (t *Task) exitRobustList() {
return
}
- next := rl.List
+ next := primitive.Uint64(rl.List)
done := 0
var pendingLockAddr usermem.Addr
if rl.ListOpPending != 0 {
@@ -99,12 +100,12 @@ func (t *Task) exitRobustList() {
// We traverse to the next element of the list before we
// actually wake anything. This prevents the race where waking
// this futex causes a modification of the list.
- thisLockAddr := usermem.Addr(next + rl.FutexOffset)
+ thisLockAddr := usermem.Addr(uint64(next) + rl.FutexOffset)
// Try to decode the next element in the list before waking the
// current futex. But don't check the error until after we've
// woken the current futex. Linux does it in this order too
- _, nextErr := t.CopyIn(usermem.Addr(next), &next)
+ _, nextErr := next.CopyIn(t, usermem.Addr(next))
// Wakeup the current futex if it's not pending.
if thisLockAddr != pendingLockAddr {