btf.go : Add LoadBTF to transparently search and load BTF file

Signed-off-by: Tristan d'Audibert <tristan.daudibert@orange.com>
cilium · Jan 23, 2025 · 4ef0814 · 4ef0814
1 parent dac4d2e
commit 4ef0814
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Showing 2 changed files with 10 additions and 2 deletions.
diff --git a/pkg/btf/btf.go b/pkg/btf/btf.go
@@ -104,8 +104,16 @@ func GetCachedBTFFile() string {
 	return btfFile
 }
 
+func LoadBTF() (*btf.Spec, error) {
+  err := InitCachedBTF(defaults.DefaultTetragonLib, "")
+	if err != nil {
+		return nil, err
+	}
+	return NewBTF()
+}
+
 func FindBtfFuncParamFromHook(hook string, argIndex int) (*btf.FuncParam, error) {
-	spec, err := NewBTF()
+	spec, err := LoadBTF()
 	if err != nil {
 		return nil, err
 	}

diff --git a/pkg/btf/btf_test.go b/pkg/btf/btf_test.go
@@ -477,7 +477,7 @@ func testAssertErrorOnInvalidPath(t *testing.T, spec *btf.Spec) {
 }
 
 func TestResolveBtfPath(t *testing.T) {
-	spec, err := NewBTF()
+	spec, err := LoadBTF()
 	failOnError(t, err)
 
 	testAssertEqualPath(t, spec)