1 /*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 #include "linkerconfig/common.h"
17
18 #include <string>
19 #include <vector>
20
21 #include <android-base/properties.h>
22 #include <android-base/strings.h>
23
24 #include "linkerconfig/context.h"
25 #include "linkerconfig/section.h"
26 #include "linkerconfig/variables.h"
27
28 namespace {
29 const std::vector<std::string> kBionicLibs = {
30 "libc.so",
31 "libdl.so",
32 "libdl_android.so",
33 "libm.so",
34 };
35 } // namespace
36
37 namespace android {
38 namespace linkerconfig {
39 namespace contents {
40
41 using android::linkerconfig::modules::Namespace;
42 using android::linkerconfig::modules::Section;
43
AddStandardSystemLinks(const Context & ctx,Section * section)44 void AddStandardSystemLinks(const Context& ctx, Section* section) {
45 const bool debuggable = android::base::GetBoolProperty("ro.debuggable", false);
46 const std::string system_ns_name = ctx.GetSystemNamespaceName();
47 const bool is_section_vndk_enabled = ctx.IsSectionVndkEnabled();
48 section->ForEachNamespaces([&](Namespace& ns) {
49 if (ns.GetName() != system_ns_name) {
50 ns.GetLink(system_ns_name).AddSharedLib(kBionicLibs);
51 if (!is_section_vndk_enabled || ns.GetName() != "default") {
52 // TODO(b/185199923) remove the default value
53 ns.GetLink(system_ns_name)
54 .AddSharedLib(Var("SANITIZER_RUNTIME_LIBRARIES", ""));
55 }
56 if (debuggable) {
57 // Library on the system image that can be dlopened for debugging purposes.
58 ns.GetLink(system_ns_name).AddSharedLib("libfdtrack.so");
59 }
60 }
61 });
62 }
63
64 } // namespace contents
65 } // namespace linkerconfig
66 } // namespace android
67