snapshot: sagernet/gvisor v0.0.0-20250811.0-sing-box-mod.1

Содержимое пина, зафиксированного в go.mod sing-box-lx, одним коммитом
без истории. Полная история SagerNet/gvisor — 1.45 ГБ и клонируется в
каждой CI-джобе; наша дельта — одна вставка в одну функцию, история для
неё не нужна.

Module path github.com/sagernet/gvisor сохранён намеренно: на него
опирается replace-директива суперпроекта.

Патч поверх — отдельным коммитом, чтобы дельта читалась одним git show
и переносилась на новый пин копированием.

SPECS/TASKS/048-GVISOR_HANDSHAKE_NIL_CRASH

pkg/hosttid/hosttid.go

@@ -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.
+
+// Package hosttid provides the Current function.
+package hosttid
+
+import (
+	"runtime"
+)
+
+// Dummy references for facts.
+const _ = runtime.Compiler
+
+// Current returns the caller's host thread ID. Unless runtime.LockOSThread()
+// is in effect, this function is inherently racy since the Go runtime may
+// migrate the calling goroutine to another thread at any time.
+//
+// Current is equivalent to unix.Gettid(), but faster.
+func Current() uint64

pkg/hosttid/hosttid_124_amd64.s

@@ -0,0 +1,29 @@
+// 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.
+
+//go:build !go1.25
+
+#include "textflag.h"
+
+#define M_OFFSET       48 // +checkoffset runtime g.m
+#define PROCID_OFFSET  72 // +checkoffset runtime m.procid
+
+TEXT ·Current(SB),NOSPLIT|NOFRAME,$0-8
+	// procid is in getg().m.procid.
+	MOVQ TLS, AX
+	MOVQ 0(AX)(TLS*1), AX
+	MOVQ M_OFFSET(AX), AX // gp.m
+	MOVQ PROCID_OFFSET(AX), AX // mp.procid
+	MOVQ AX, ret+0(FP)
+	RET

pkg/hosttid/hosttid_124_arm64.s

@@ -0,0 +1,28 @@
+// 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.
+
+//go:build !go1.25
+
+#include "textflag.h"
+
+#define M_OFFSET      48 // +checkoffset runtime g.m
+#define PROCID_OFFSET 72 // +checkoffset runtime m.procid
+
+TEXT ·Current(SB),NOSPLIT,$0-8
+	// procid is in getg().m.procid.
+	MOVD g, R0      // g
+	MOVD M_OFFSET(R0), R0 // gp.m
+	MOVD PROCID_OFFSET(R0), R0 // mp.procid
+	MOVD R0, ret+0(FP)
+	RET

pkg/hosttid/hosttid_125_amd64.s

@@ -0,0 +1,29 @@
+// 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.
+
+//go:build go1.25
+
+#include "textflag.h"
+
+#define M_OFFSET       48 // +checkoffset runtime g.m
+#define PROCID_OFFSET  64 // +checkoffset runtime m.procid
+
+TEXT ·Current(SB),NOSPLIT|NOFRAME,$0-8
+	// procid is in getg().m.procid.
+	MOVQ TLS, AX
+	MOVQ 0(AX)(TLS*1), AX
+	MOVQ M_OFFSET(AX), AX // gp.m
+	MOVQ PROCID_OFFSET(AX), AX // mp.procid
+	MOVQ AX, ret+0(FP)
+	RET

pkg/hosttid/hosttid_125_arm64.s

@@ -0,0 +1,28 @@
+// 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.
+
+//go:build go1.25
+
+#include "textflag.h"
+
+#define M_OFFSET      48 // +checkoffset runtime g.m
+#define PROCID_OFFSET 64 // +checkoffset runtime m.procid
+
+TEXT ·Current(SB),NOSPLIT,$0-8
+	// procid is in getg().m.procid.
+	MOVD g, R0      // g
+	MOVD M_OFFSET(R0), R0 // gp.m
+	MOVD PROCID_OFFSET(R0), R0 // mp.procid
+	MOVD R0, ret+0(FP)
+	RET

pkg/hosttid/hosttid_state_autogen.go

@@ -0,0 +1,3 @@
+// automatically generated by stateify.
+
+package hosttid