| // Copyright 2025 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| //go:build goexperiment.runtimesecret && (arm64 || amd64) | |
| // testing stubs, these are implemented in assembly in | |
| // asm_$GOARCH.s | |
| // | |
| // Note that this file is also used as a template to build a | |
| // crashing binary that tries to leave secrets in places where | |
| // they are supposed to be erased. see crash_test.go for more info | |
| package secret | |
| import "unsafe" | |
| // Load data from p into test registers. | |
| // | |
| //go:noescape | |
| func loadRegisters(p unsafe.Pointer) | |
| // Spill data from test registers into p. | |
| // Returns the amount of space filled in. | |
| // | |
| //go:noescape | |
| func spillRegisters(p unsafe.Pointer) uintptr | |
| // Load secret into all registers. | |
| // | |
| //go:noescape | |
| func useSecret(secret []byte) | |
| // callback from assembly | |
| func delay() { | |
| sleep(1_000_000) | |
| } | |
| // linknamed to avoid package importing time | |
| // for just testing code | |
| // | |
| //go:linkname sleep time.Sleep | |
| func sleep(int64) | |