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// Copyright 2015 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
package csource
import (
"fmt"
"math/rand"
"os"
"runtime"
"strings"
"testing"
"time"
"github.com/google/syzkaller/prog"
_ "github.com/google/syzkaller/sys"
"github.com/google/syzkaller/sys/targets"
)
func TestGenerate(t *testing.T) {
switch runtime.GOOS {
case "openbsd":
t.Skipf("broken on %v", runtime.GOOS)
}
t.Parallel()
for _, target := range prog.AllTargets() {
target := target
if runtime.GOOS != targets.Get(target.OS, target.Arch).BuildOS {
continue
}
t.Run(target.OS+"/"+target.Arch, func(t *testing.T) {
if target.OS == "linux" && target.Arch == "arm" {
// This currently fails (at least with my arm-linux-gnueabihf-gcc-4.8) with:
// Assembler messages:
// Error: alignment too large: 15 assumed
t.Skip("broken")
}
if target.OS == "linux" && target.Arch == "386" {
// Currently fails on travis with:
// fatal error: asm/unistd.h: No such file or directory
t.Skip("broken")
}
if target.OS == "test" && target.PtrSize == 4 {
// The same reason as linux/32.
t.Skip("broken")
}
t.Parallel()
testTarget(t, target)
})
}
}
func testTarget(t *testing.T, target *prog.Target) {
seed := int64(time.Now().UnixNano())
rs := rand.NewSource(seed)
t.Logf("seed=%v", seed)
r := rand.New(rs)
progs := []*prog.Prog{target.GenerateSimpleProg()}
if p := target.GenerateAllSyzProg(rs); len(p.Calls) != 0 {
progs = append(progs, p)
}
if !testing.Short() {
progs = append(progs, target.Generate(rs, 10, nil))
}
opts := allOptionsSingle(target.OS)
opts = append(opts, Options{
Threaded: true,
Collide: true,
Repeat: true,
Procs: 2,
Sandbox: "none",
Repro: true,
UseTmpDir: true,
})
allPermutations := allOptionsPermutations(target.OS)
if testing.Short() {
for i := 0; i < 16; i++ {
opts = append(opts, allPermutations[r.Intn(len(allPermutations))])
}
} else {
opts = allPermutations
}
for pi, p := range progs {
for opti, opts := range opts {
p, opts := p, opts
t.Run(fmt.Sprintf("%v/%v", pi, opti), func(t *testing.T) {
t.Parallel()
testOne(t, p, opts)
})
}
}
}
func testOne(t *testing.T, p *prog.Prog, opts Options) {
src, err := Write(p, opts)
if err != nil {
t.Logf("opts: %+v\nprogram:\n%s\n", opts, p.Serialize())
t.Fatalf("%v", err)
}
bin, err := Build(p.Target, src)
if err != nil {
if strings.Contains(err.Error(), "no target compiler") {
t.Skip(err)
}
t.Logf("opts: %+v\nprogram:\n%s\n", opts, p.Serialize())
t.Fatalf("%v", err)
}
defer os.Remove(bin)
}
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