mirror of
https://github.com/reactos/syzkaller.git
synced 2024-11-28 13:50:52 +00:00
75a7c5e2d1
1. mmap all memory always, without explicit mmap calls in the program. This makes lots of things much easier and removes lots of code. Makes mmap not a special syscall and allows to fuzz without mmap enabled. 2. Change address assignment algorithm. Current algorithm allocates unmapped addresses too frequently and allows collisions between arguments of a single syscall. The new algorithm analyzes actual allocations in the program and places new arguments at unused locations.
69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
// Copyright 2017 syzkaller project authors. All rights reserved.
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// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
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package prog
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import (
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"fmt"
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"math/rand"
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"testing"
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"time"
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)
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// Export guts for testing.
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func init() {
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debug = true
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}
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var (
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CalcChecksumsCall = calcChecksumsCall
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InitTest = initTest
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)
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func initTargetTest(t *testing.T, os, arch string) *Target {
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t.Parallel()
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target, err := GetTarget(os, arch)
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if err != nil {
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t.Fatal(err)
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}
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return target
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}
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func randSource(t *testing.T) rand.Source {
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seed := int64(time.Now().UnixNano())
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t.Logf("seed=%v", seed)
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return rand.NewSource(seed)
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}
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func initRandomTargetTest(t *testing.T, os, arch string) (*Target, rand.Source, int) {
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target := initTargetTest(t, os, arch)
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iters := 10000
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if testing.Short() {
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iters = 100
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}
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return target, randSource(t), iters
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}
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func initTest(t *testing.T) (*Target, rand.Source, int) {
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return initRandomTargetTest(t, "linux", "amd64")
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}
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func testEachTargetRandom(t *testing.T, fn func(t *testing.T, target *Target, rs rand.Source, iters int)) {
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iters := 10000
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if testing.Short() {
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iters = 100
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}
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targets := AllTargets()
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iters /= len(targets)
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rs0 := randSource(t)
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for _, target := range targets {
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target := target
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rs := rand.NewSource(rs0.Int63())
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t.Run(fmt.Sprintf("%v/%v", target.OS, target.Arch), func(t *testing.T) {
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t.Parallel()
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fn(t, target, rs, iters)
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})
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}
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}
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