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 "common_runtime_test.h"
18
19 #include <thread>
20
21 #include "android-base/logging.h"
22 #include "base/locks.h"
23 #include "base/mutex.h"
24 #include "oat/elf_file.h"
25 #include "runtime.h"
26 #include "thread-current-inl.h"
27
28 #ifdef ART_TARGET_ANDROID
29 #include "android-base/properties.h"
30 #endif
31
32 namespace art HIDDEN {
33
34 class RuntimeTest : public CommonRuntimeTest {};
35
36 // Ensure that abort works with ThreadList locks held.
37
TEST_F(RuntimeTest,AbortWithThreadListLockHeld)38 TEST_F(RuntimeTest, AbortWithThreadListLockHeld) {
39 // This assumes the test is run single-threaded: do not start the runtime to avoid daemon threads.
40
41 constexpr const char* kDeathRegex = "Skipping all-threads dump as locks are held";
42 ASSERT_DEATH({
43 // The regex only works if we can ensure output goes to stderr.
44 android::base::SetLogger(android::base::StderrLogger);
45
46 MutexLock mu(Thread::Current(), *Locks::thread_list_lock_);
47 Runtime::Abort("Attempt to abort");
48 }, kDeathRegex);
49 }
50
51
TEST_F(RuntimeTest,AbortWithThreadSuspendCountLockHeld)52 TEST_F(RuntimeTest, AbortWithThreadSuspendCountLockHeld) {
53 // This assumes the test is run single-threaded: do not start the runtime to avoid daemon threads.
54
55 constexpr const char* kDeathRegex = "Skipping all-threads dump as locks are held";
56 ASSERT_DEATH({
57 // The regex only works if we can ensure output goes to stderr.
58 android::base::SetLogger(android::base::StderrLogger);
59
60 MutexLock mu(Thread::Current(), *Locks::thread_suspend_count_lock_);
61 Runtime::Abort("Attempt to abort");
62 }, kDeathRegex);
63 }
64
TEST_F(RuntimeTest,AbortFromUnattachedThread)65 TEST_F(RuntimeTest, AbortFromUnattachedThread) {
66 // This assumes the test is run single-threaded: do not start the runtime to avoid daemon threads.
67
68 constexpr const char* kDeathRegex = "Going down";
69 ASSERT_EXIT({
70 // The regex only works if we can ensure output goes to stderr.
71 android::base::SetLogger(android::base::StderrLogger);
72
73 Thread::Current()->TransitionFromSuspendedToRunnable();
74 runtime_->Start();
75
76 std::thread t([]() {
77 LOG(FATAL) << "Going down";
78 });
79 t.join();
80 }, ::testing::KilledBySignal(SIGABRT), kDeathRegex);
81 }
82
83 // It is possible to run tests that validate an existing deployed on-device ART APEX ('standalone'
84 // tests). If these tests expect to load ELF files with a particular alignment, but those ELF files
85 // were created with a different alignment, there will be many difficult-to-debug failures. This
86 // test aims to identify this mismatch, related to whether or not the runtimes were built to be
87 // page-size agnostic.
TEST_F(RuntimeTest,ElfAlignmentMismatch)88 TEST_F(RuntimeTest, ElfAlignmentMismatch) {
89 #ifdef ART_TARGET_ANDROID
90 bool platform_pga = android::base::GetBoolProperty("ro.product.build.no_bionic_page_size_macro",
91 false);
92 if (kPageSizeAgnostic != platform_pga) {
93 LOG(WARNING) << "Test configured with kPageSizeAgnostic=" << kPageSizeAgnostic << ", but "
94 << "platform ro.product.build.no_bionic_page_size_macro=" << platform_pga << ".";
95 }
96 #endif
97 // Determine the alignment of the ART APEX by reading the alignment of boot.oat.
98 std::string core_oat_location = GetSystemImageFilename(GetCoreOatLocation().c_str(), kRuntimeISA);
99 std::unique_ptr<File> core_oat_file(OS::OpenFileForReading(core_oat_location.c_str()));
100 ASSERT_TRUE(core_oat_file.get() != nullptr) << core_oat_location;
101
102 std::string error_msg;
103 std::unique_ptr<ElfFile> elf_file(ElfFile::Open(core_oat_file.get(),
104 /*writable=*/false,
105 /*program_header_only=*/true,
106 /*low_4gb=*/false,
107 &error_msg));
108 ASSERT_TRUE(elf_file != nullptr) << error_msg;
109 EXPECT_EQ(kElfSegmentAlignment, elf_file->GetElfSegmentAlignmentFromFile());
110 }
111
112 } // namespace art
113