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package ebpf
import (
"errors"
"sync"
"testing"
"github.com/cilium/ebpf/btf"
"github.com/cilium/ebpf/internal/testutils"
)
var haveTestmod = sync.OnceValues(func() (bool, error) {
// See https://github.com/torvalds/linux/commit/290248a5b7d829871b3ea3c62578613a580a1744
testmod, err := btf.FindHandle(func(info *btf.HandleInfo) bool {
return info.IsModule() && info.Name == "bpf_testmod"
})
if err != nil && !errors.Is(err, btf.ErrNotFound) {
return false, err
}
testmod.Close()
return testmod != nil, nil
})
func requireTestmod(tb testing.TB) {
tb.Helper()
testutils.SkipOnOldKernel(tb, "5.11", "bpf_testmod")
testmod, err := haveTestmod()
if err != nil {
tb.Fatal(err)
}
if !testmod {
tb.Skip("bpf_testmod not loaded")
}
}
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