mirror of
https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
Kevin KrakauerandgVisor bot
d8aa09e04c
Done via:
find . -name "*.go" | xargs sed -i -E 's/interface\{\}/any/g'
PiperOrigin-RevId: 487033228
91 lines
2.7 KiB
Go
91 lines
2.7 KiB
Go
// Copyright 2018 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package testutil provides common assembly stubs for testing.
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package testutil
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import (
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"fmt"
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"strings"
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)
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// Getpid executes a trivial system call.
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func Getpid()
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// AddrOfGetpid returns the address of Getpid.
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//
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// In Go 1.17+, Go references to assembly functions resolve to an ABIInternal
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// wrapper function rather than the function itself. We must reference from
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// assembly to get the ABI0 (i.e., primary) address.
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func AddrOfGetpid() uintptr
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// AddrOfTouch returns the address of a function that touches the value in the
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// first register.
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func AddrOfTouch() uintptr
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func touch()
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// AddrOfSyscallLoop returns the address of a function that executes a syscall
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// and loops.
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func AddrOfSyscallLoop() uintptr
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func syscallLoop()
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// AddrOfSpinLoop returns the address of a function that spins on the CPU.
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func AddrOfSpinLoop() uintptr
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func spinLoop()
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// AddrOfHaltLoop returns the address of a function that immediately halts and
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// loops.
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func AddrOfHaltLoop() uintptr
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func haltLoop()
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// AddrOfTwiddleRegsFault returns the address of a function that twiddles
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// registers then faults.
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func AddrOfTwiddleRegsFault() uintptr
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func twiddleRegsFault()
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// AddrOfTwiddleRegsSyscall returns the address of a function that twiddles
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// registers then executes a syscall.
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func AddrOfTwiddleRegsSyscall() uintptr
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func twiddleRegsSyscall()
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// FloatingPointWorks is a floating point test.
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//
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// It returns true or false.
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func FloatingPointWorks() bool
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// RegisterMismatchError is used for checking registers.
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type RegisterMismatchError []string
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// Error returns a human-readable error.
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func (r RegisterMismatchError) Error() string {
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return strings.Join([]string(r), ";")
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}
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// addRegisterMisatch allows simple chaining of register mismatches.
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func addRegisterMismatch(err error, reg string, got, expected any) error {
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errStr := fmt.Sprintf("%s got %08x, expected %08x", reg, got, expected)
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switch r := err.(type) {
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case nil:
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// Return a new register mismatch.
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return RegisterMismatchError{errStr}
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case RegisterMismatchError:
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// Append the error.
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r = append(r, errStr)
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return r
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default:
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// Leave as is.
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return err
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}
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}
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