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/abi/linux/linux.go

@@ -0,0 +1,42 @@
+// 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 linux contains the constants and types needed to interface with a
+// Linux kernel.
+package linux
+
+// NumSoftIRQ is the number of software IRQs, exposed via /proc/stat.
+//
+// Defined in linux/interrupt.h.
+const NumSoftIRQ = 10
+
+// Sysinfo is the structure provided by sysinfo on linux versions > 2.3.48.
+//
+// +marshal
+type Sysinfo struct {
+	Uptime    int64
+	Loads     [3]uint64
+	TotalRAM  uint64
+	FreeRAM   uint64
+	SharedRAM uint64
+	BufferRAM uint64
+	TotalSwap uint64
+	FreeSwap  uint64
+	Procs     uint16
+	_         [6]byte // Pad Procs to 64bits.
+	TotalHigh uint64
+	FreeHigh  uint64
+	Unit      uint32 `marshal:"unaligned"` // Struct ends mid-64-bit-word.
+	// The _f field in the glibc version of Sysinfo has size 0 on AMD64.
+}