1 files changed, 30 insertions, 0 deletions
diff --git a/pkg/procid/procid_amd64.s b/pkg/procid/procid_amd64.s
new file mode 100644
index 000000000..7c622e5d7
--- /dev/null
+++ b/pkg/procid/procid_amd64.s
@@ -0,0 +1,30 @@
+// Copyright 2018 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build amd64
+// +build go1.8
+// +build !go1.16
+
+#include "textflag.h"
+
+TEXT ·Current(SB),NOSPLIT,$0-8
+	// The offset specified here is the m_procid offset for Go1.8+.
+	// Changes to this offset should be caught by the tests, and major
+	// version changes require an explicit tag change above.
+	MOVQ TLS, AX
+	MOVQ 0(AX)(TLS*1), AX
+	MOVQ 48(AX), AX // g_m (may change in future versions)
+	MOVQ 72(AX), AX // m_procid (may change in future versions)
+	MOVQ AX, ret+0(FP)
+	RET