dlfcn_test.go RawHistoryFolder

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: 2023 The Ebitengine Authors
3
4//go:build darwin || freebsd || linux || netbsd
5
6package purego_test
7
8import (
9	"os"
10	"path/filepath"
11	"testing"
12	"unsafe"
13
14	"github.com/ebitengine/purego"
15)
16
17func TestSimpleDlsym(t *testing.T) {
18	if _, err := purego.Dlsym(purego.RTLD_DEFAULT, "dlsym"); err != nil {
19		t.Errorf("Dlsym with RTLD_DEFAULT failed: %v", err)
20	}
21}
22
23func TestNestedDlopenCall(t *testing.T) {
24	libFileName := filepath.Join(t.TempDir(), "libdlnested.so")
25	t.Logf("Build %v", libFileName)
26
27	if err := buildSharedLib("CXX", libFileName, filepath.Join("testdata", "libdlnested", "nested_test.cpp")); err != nil {
28		t.Fatal(err)
29	}
30	defer os.Remove(libFileName)
31
32	lib, err := purego.Dlopen(libFileName, purego.RTLD_NOW|purego.RTLD_GLOBAL)
33	if err != nil {
34		t.Fatalf("Dlopen(%q) failed: %v", libFileName, err)
35	}
36
37	purego.Dlclose(lib)
38}
39
40func TestSyscallN(t *testing.T) {
41	var dlsym uintptr
42	var err error
43	if dlsym, err = purego.Dlsym(purego.RTLD_DEFAULT, "dlsym"); err != nil {
44		t.Errorf("Dlsym with RTLD_DEFAULT failed: %v", err)
45	}
46	r1, _, err2 := purego.SyscallN(dlsym, purego.RTLD_DEFAULT, uintptr(unsafe.Pointer(&[]byte("dlsym\x00")[0])))
47	if dlsym != r1 {
48		t.Fatalf("SyscallN didn't return the same result as purego.Dlsym: %d", err2)
49	}
50}