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|
package linux
import (
"encoding/binary"
"errors"
"os"
"testing"
"github.com/go-quicktest/qt"
)
func TestAuxvVDSOMemoryAddress(t *testing.T) {
for _, testcase := range []struct {
source string
is32bit bool
address uint64
}{
{"auxv64le.bin", false, 0x7ffd377e5000},
{"auxv32le.bin", true, 0xb7fc3000},
} {
t.Run(testcase.source, func(t *testing.T) {
av, err := newAuxFileReader("testdata/"+testcase.source, binary.LittleEndian, testcase.is32bit)
if err != nil {
t.Fatal(err)
}
t.Cleanup(func() { av.Close() })
addr, err := vdsoMemoryAddress(av)
if err != nil {
t.Fatal(err)
}
if uint64(addr) != testcase.address {
t.Errorf("Expected vDSO memory address %x, got %x", testcase.address, addr)
}
})
}
}
func TestAuxvNoVDSO(t *testing.T) {
// Copy of auxv.bin with the vDSO pointer removed.
av, err := newAuxFileReader("testdata/auxv64le_no_vdso.bin", binary.LittleEndian, false)
if err != nil {
t.Fatal(err)
}
t.Cleanup(func() { av.Close() })
_, err = vdsoMemoryAddress(av)
if want, got := errAuxvNoVDSO, err; !errors.Is(got, want) {
t.Fatalf("expected error '%v', got: %v", want, got)
}
}
func TestVDSOVersion(t *testing.T) {
_, err := vdsoVersion()
skipIfNotSupportedOnOS(t, err)
qt.Assert(t, qt.IsNil(err))
}
func TestLinuxVersionCodeEmbedded(t *testing.T) {
tests := []struct {
file string
version uint32
}{
{
"testdata/vdso.bin",
uint32(328828), // 5.4.124
},
{
"testdata/vdso_multiple_notes.bin",
uint32(328875), // Container Optimized OS v85 with a 5.4.x kernel
},
}
for _, test := range tests {
t.Run(test.file, func(t *testing.T) {
vdso, err := os.Open(test.file)
if err != nil {
t.Fatal(err)
}
defer vdso.Close()
vc, err := vdsoLinuxVersionCode(vdso)
if err != nil {
t.Fatal(err)
}
if vc != test.version {
t.Errorf("Expected version code %d, got %d", test.version, vc)
}
})
}
}
|
