tools/syz-runtest: test program parsing before booting VMs

It sucks to wait for VMs to boot just to discover that programs don't parse.

1 files changed, 22 insertions, 1 deletions

diff --git a/tools/syz-runtest/runtest.go b/tools/syz-runtest/runtest.go
index c1a1525d2..a84bc005d 100644
--- a/tools/syz-runtest/runtest.go
+++ b/tools/syz-runtest/runtest.go
@@ -15,6 +15,7 @@ import (
 	"net"
 	"os"
 	"path/filepath"
+	"strings"
 	"sync"
 	"time"
 
@@ -44,6 +45,10 @@ func main() {
 	if err != nil {
 		log.Fatal(err)
 	}
+	testDir := filepath.Join(cfg.Syzkaller, "sys", target.OS, "test")
+	if err := testParsing(target, testDir); err != nil {
+		log.Fatal(err)
+	}
 	vmPool, err := vm.Create(cfg, *flagDebug)
 	if err != nil {
 		log.Fatal(err)
@@ -111,7 +116,7 @@ func main() {
 		fmt.Printf("%-24v: %v calls enabled\n", sandbox+" sandbox", len(calls))
 	}
 	ctx := &runtest.Context{
-		Dir:          filepath.Join(cfg.Syzkaller, "sys", target.OS, "test"),
+		Dir:          testDir,
 		Target:       target,
 		Features:     mgr.checkResult.Features,
 		EnabledCalls: enabledCalls,
@@ -268,3 +273,19 @@ func (mgr *Manager) Done(a *rpctype.RunTestDoneArgs, r *int) error {
 	close(req.Done)
 	return nil
 }
+
+func testParsing(target *prog.Target, dir string) error {
+	files, err := ioutil.ReadDir(dir)
+	if err != nil {
+		return fmt.Errorf("failed to read %v: %v", dir, err)
+	}
+	for _, file := range files {
+		if strings.HasSuffix(file.Name(), "~") {
+			continue
+		}
+		if err := runtest.TestParseProg(target, dir, file.Name()); err != nil {
+			return err
+		}
+	}
+	return nil
+}