| // 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) |
