pkg/build: make linux implement binary signer

We were almost there...

Update #1271

1 files changed, 6 insertions, 0 deletions

diff --git a/pkg/build/linux.go b/pkg/build/linux.go
index 6f49466b6..1335dce8c 100644
--- a/pkg/build/linux.go
+++ b/pkg/build/linux.go
@@ -26,6 +26,8 @@ import (
 
 type linux struct{}
 
+var _ signer = linux{}
+
 func (linux linux) build(params *Params) error {
 	if err := linux.buildKernel(params); err != nil {
 		return err
@@ -36,6 +38,10 @@ func (linux linux) build(params *Params) error {
 	return nil
 }
 
+func (linux linux) sign(params *Params) (string, error) {
+	return elfBinarySignature(filepath.Join(params.OutputDir, "obj", "vmlinux"))
+}
+
 func (linux) buildKernel(params *Params) error {
 	configFile := filepath.Join(params.KernelDir, ".config")
 	if err := osutil.WriteFile(configFile, params.Config); err != nil {