pkg/build: add gvisor support

1 files changed, 19 insertions, 0 deletions

diff --git a/pkg/build/gvisor.go b/pkg/build/gvisor.go
index 8649e7e65..b96d55cf0 100644
--- a/pkg/build/gvisor.go
+++ b/pkg/build/gvisor.go
@@ -3,13 +3,32 @@
 
 package build
 
+import (
+	"path/filepath"
+	"time"
+
+	"github.com/google/syzkaller/pkg/osutil"
+)
+
 type gvisor struct{}
 
 func (gvisor) build(targetArch, vmType, kernelDir, outputDir, compiler, userspaceDir,
 	cmdlineFile, sysctlFile string, config []byte) error {
+	if err := osutil.MkdirAll(outputDir); err != nil {
+		return err
+	}
+	if _, err := osutil.RunCmd(20*time.Minute, kernelDir, compiler, "build", "--verbose_failures", "--sandbox_debug", "runsc"); err != nil {
+		return err
+	}
+	runsc := filepath.Join(kernelDir, "bazel-bin", "runsc", "linux_amd64_pure_stripped", "runsc")
+	if err := osutil.CopyFile(runsc, filepath.Join(outputDir, "image")); err != nil {
+		return err
+	}
+	osutil.RunCmd(10*time.Minute, kernelDir, compiler, "shutdown")
 	return nil
 }
 
 func (gvisor) clean(kernelDir string) error {
+	// Let's assume that bazel always properly handles build without cleaning (until proven otherwise).
 	return nil
 }