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
17 #include "linkerconfig/baseconfig.h"
18 #include "linkerconfig/environment.h"
19 #include "linkerconfig/sectionbuilder.h"
20 #include "linkerconfig/variables.h"
21
22 using android::linkerconfig::modules::DirToSection;
23 using android::linkerconfig::modules::Section;
24
25 namespace {
RemoveSection(std::vector<DirToSection> & dir_to_section,const std::string & to_be_removed)26 void RemoveSection(std::vector<DirToSection>& dir_to_section,
27 const std::string& to_be_removed) {
28 dir_to_section.erase(
29 std::remove_if(dir_to_section.begin(),
30 dir_to_section.end(),
31 [&](auto pair) { return (pair.second == to_be_removed); }),
32 dir_to_section.end());
33 }
34 } // namespace
35
36 namespace android {
37 namespace linkerconfig {
38 namespace contents {
CreateBaseConfiguration(Context & ctx)39 android::linkerconfig::modules::Configuration CreateBaseConfiguration(
40 Context& ctx) {
41 std::vector<Section> sections;
42
43 ctx.SetCurrentLinkerConfigType(LinkerConfigType::Default);
44
45 // Don't change the order here. The first pattern that matches with the
46 // absolute path of an executable is selected.
47 std::vector<DirToSection> dirToSection = {
48 {"/system/bin/", "system"},
49 {"/system/xbin/", "system"},
50 {Var("SYSTEM_EXT") + "/bin/", "system"},
51
52 // Processes from the product partition will have a separate section if
53 // PRODUCT_PRODUCT_VNDK_VERSION is defined. Otherwise, they are run from
54 // the "system" section.
55 {Var("PRODUCT") + "/bin/", "product"},
56
57 {"/odm/bin/", "vendor"},
58 {"/vendor/bin/", "vendor"},
59 {"/data/nativetest/odm", "vendor"},
60 {"/data/nativetest64/odm", "vendor"},
61 {"/data/benchmarktest/odm", "vendor"},
62 {"/data/benchmarktest64/odm", "vendor"},
63 {"/data/nativetest/vendor", "vendor"},
64 {"/data/nativetest64/vendor", "vendor"},
65 {"/data/benchmarktest/vendor", "vendor"},
66 {"/data/benchmarktest64/vendor", "vendor"},
67
68 {"/data/nativetest/unrestricted", "unrestricted"},
69 {"/data/nativetest64/unrestricted", "unrestricted"},
70
71 // Create isolated namespace for development purpose.
72 // This isolates binary from the system so binaries and libraries from
73 // this location can be separated from system libraries.
74 {"/data/local/tmp/isolated", "isolated"},
75
76 // Create directories under shell-writable /data/local/tests for
77 // each namespace in order to run tests.
78 {"/data/local/tests/product", "product"},
79 {"/data/local/tests/system", "system"},
80 {"/data/local/tests/unrestricted", "unrestricted"},
81 {"/data/local/tests/vendor", "vendor"},
82
83 // TODO(b/123864775): Ensure tests are run from one of the subdirectories
84 // above. Then clean this up.
85 {"/data/local/tmp", "unrestricted"},
86
87 {"/postinstall", "postinstall"},
88 // Fallback entries to provide APEX namespace lookups for binaries
89 // anywhere else. These must be last.
90 {"/data", "system"},
91 {"/tmp", "system"},
92 // TODO(b/168556887): Remove this when we have a dedicated section for
93 // binaries in APKs
94 {Var("PRODUCT") + "/app/", "system"},
95 };
96
97 sections.emplace_back(BuildSystemSection(ctx));
98 if (android::linkerconfig::modules::IsTreblelizedDevice()) {
99 sections.emplace_back(BuildVendorSection(ctx));
100 sections.emplace_back(BuildProductSection(ctx));
101 } else {
102 RemoveSection(dirToSection, "product");
103 RemoveSection(dirToSection, "vendor");
104 }
105
106 sections.emplace_back(BuildUnrestrictedSection(ctx));
107 sections.emplace_back(BuildPostInstallSection(ctx));
108
109 sections.emplace_back(BuildIsolatedSection(ctx));
110
111 return android::linkerconfig::modules::Configuration(std::move(sections),
112 std::move(dirToSection));
113 }
114 } // namespace contents
115 } // namespace linkerconfig
116 } // namespace android
117