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bpf_test.go
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bpf_test.go
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// Copyright 2016 PLUMgrid
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package bpf
import (
"testing"
"github.com/iovisor/gobpf/bcc"
"github.com/iovisor/gobpf/elf"
)
var simple1 string = `
BPF_TABLE("hash", int, int, table1, 10);
int func1(void *ctx) {
return 0;
}
`
func TestModuleLoadBCC(t *testing.T) {
b := bcc.NewModule(simple1, []string{})
if b == nil {
t.Fatal("prog is nil")
}
defer b.Close()
_, err := b.LoadKprobe("func1")
if err != nil {
t.Fatal(err)
}
}
func TestModuleLoadELF(t *testing.T) {
b := elf.NewModule("./tests/dummy.o")
if b == nil {
t.Fatal("prog is nil")
}
err := b.Load()
if err != nil {
t.Fatal(err)
}
var maps []*elf.Map
for m := range b.IterMaps() {
maps = append(maps, m)
}
if len(maps) != 1 {
t.Fatal("unexpcted number of maps")
}
if maps[0].Name != "dummy" {
t.Fatalf("map %q doesn't match expected name 'dummy'", maps[0].Name)
}
var probes []*elf.Kprobe
for p := range b.IterKprobes() {
probes = append(probes, p)
}
if len(probes) != 1 {
t.Fatalf("unexpcted number of probes: %d", len(probes))
}
if probes[0].Name != "kprobe/dummy" {
t.Fatalf("probe %q doesn't match expected name 'dummy'", probes[0].Name)
}
}