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// Copyright 2025 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.
// Small tool for systematically outputting syzlang descriptions of KFuzzTest
// of a vmlinux binary.
package main
import (
"fmt"
"io"
"os"
"github.com/google/syzkaller/pkg/kfuzztest"
"github.com/google/syzkaller/pkg/log"
"github.com/google/syzkaller/pkg/tool"
)
func main() {
usage := func(w io.Writer) {
fmt.Fprintln(w, "usage: ./kfuzztest-gen /path/to/vmlinux")
}
if len(os.Args) != 2 {
usage(os.Stderr)
os.Exit(1)
}
extractor, err := kfuzztest.NewExtractor(os.Args[1])
if err != nil {
tool.Fail(err)
}
defer extractor.Close()
log.Log(0, "extracting ELF data")
res, err := extractor.ExtractAll()
if err != nil {
tool.Fail(err)
}
log.Log(0, res.String())
builder := kfuzztest.NewBuilder(res.Funcs, res.Structs, res.Constraints, res.Annotations)
desc, err := builder.EmitSyzlangDescription()
if err != nil {
tool.Fail(err)
}
log.Logf(0, "emitting syzlang description")
fmt.Println(desc)
}
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