Merge "[vts-core] Add libdm_test in vts-core"
diff --git a/adb/Android.bp b/adb/Android.bp
index 57872b0..9ef82bf 100644
--- a/adb/Android.bp
+++ b/adb/Android.bp
@@ -629,6 +629,7 @@
         "libselinux",
     ],
     test_suites: ["device-tests"],
+    require_root: true,
 }
 
 python_test_host {
diff --git a/debuggerd/debuggerd_test.cpp b/debuggerd/debuggerd_test.cpp
index c617c6c..c9a193c 100644
--- a/debuggerd/debuggerd_test.cpp
+++ b/debuggerd/debuggerd_test.cpp
@@ -195,9 +195,7 @@
 void CrasherTest::FinishIntercept(int* result) {
   InterceptResponse response;
 
-  // Timeout for tombstoned intercept is 10 seconds.
-  ssize_t rc =
-      TIMEOUT(20, TEMP_FAILURE_RETRY(read(intercept_fd.get(), &response, sizeof(response))));
+  ssize_t rc = TIMEOUT(30, read(intercept_fd.get(), &response, sizeof(response)));
   if (rc == -1) {
     FAIL() << "failed to read response from tombstoned: " << strerror(errno);
   } else if (rc == 0) {
@@ -244,7 +242,7 @@
 
 void CrasherTest::AssertDeath(int signo) {
   int status;
-  pid_t pid = TIMEOUT(10, TEMP_FAILURE_RETRY(waitpid(crasher_pid, &status, 0)));
+  pid_t pid = TIMEOUT(30, waitpid(crasher_pid, &status, 0));
   if (pid != crasher_pid) {
     printf("failed to wait for crasher (expected pid %d, return value %d): %s\n", crasher_pid, pid,
            strerror(errno));
diff --git a/fs_mgr/libsnapshot/Android.bp b/fs_mgr/libsnapshot/Android.bp
index bb941dd..a012099 100644
--- a/fs_mgr/libsnapshot/Android.bp
+++ b/fs_mgr/libsnapshot/Android.bp
@@ -114,3 +114,29 @@
         "libstorage_literals_headers",
     ],
 }
+
+cc_binary {
+    name: "snapshotctl",
+    srcs: [
+        "snapshotctl.cpp",
+    ],
+    static_libs: [
+        "libdm",
+        "libext2_uuid",
+        "libfiemap_binder",
+        "libfstab",
+        "libsnapshot",
+    ],
+    shared_libs: [
+        "libbase",
+        "libbinder",
+        "libext4_utils",
+        "libfs_mgr",
+        "libutils",
+        "liblog",
+        "liblp",
+    ],
+    init_rc: [
+        "snapshotctl.rc",
+    ],
+}
diff --git a/fs_mgr/libsnapshot/include/libsnapshot/snapshot.h b/fs_mgr/libsnapshot/include/libsnapshot/snapshot.h
index 6130a10..0dd275a 100644
--- a/fs_mgr/libsnapshot/include/libsnapshot/snapshot.h
+++ b/fs_mgr/libsnapshot/include/libsnapshot/snapshot.h
@@ -192,6 +192,9 @@
     // call to CreateLogicalPartitions when snapshots are present.
     bool CreateLogicalAndSnapshotPartitions(const std::string& super_device);
 
+    // Dump debug information.
+    bool Dump(std::ostream& os);
+
   private:
     FRIEND_TEST(SnapshotTest, CleanFirstStageMount);
     FRIEND_TEST(SnapshotTest, CreateSnapshot);
diff --git a/fs_mgr/libsnapshot/snapshot.cpp b/fs_mgr/libsnapshot/snapshot.cpp
index 803bdb5..9d0272b 100644
--- a/fs_mgr/libsnapshot/snapshot.cpp
+++ b/fs_mgr/libsnapshot/snapshot.cpp
@@ -1482,7 +1482,7 @@
         PLOG(ERROR) << "Open failed: " << file;
         return nullptr;
     }
-    if (flock(fd, lock_flags) < 0) {
+    if (lock_flags != 0 && flock(fd, lock_flags) < 0) {
         PLOG(ERROR) << "Acquire flock failed: " << file;
         return nullptr;
     }
@@ -1962,5 +1962,47 @@
     return UnmapPartitionWithSnapshot(lock.get(), target_partition_name);
 }
 
+bool SnapshotManager::Dump(std::ostream& os) {
+    // Don't actually lock. Dump() is for debugging purposes only, so it is okay
+    // if it is racy.
+    auto file = OpenStateFile(O_RDONLY, 0);
+    if (!file) return false;
+
+    std::stringstream ss;
+
+    ss << "Update state: " << ReadUpdateState(file.get()) << std::endl;
+
+    auto boot_file = GetSnapshotBootIndicatorPath();
+    std::string boot_indicator;
+    if (android::base::ReadFileToString(boot_file, &boot_indicator)) {
+        ss << "Boot indicator: old slot = " << boot_indicator << std::endl;
+    }
+
+    bool ok = true;
+    std::vector<std::string> snapshots;
+    if (!ListSnapshots(file.get(), &snapshots)) {
+        LOG(ERROR) << "Could not list snapshots";
+        snapshots.clear();
+        ok = false;
+    }
+    for (const auto& name : snapshots) {
+        ss << "Snapshot: " << name << std::endl;
+        SnapshotStatus status;
+        if (!ReadSnapshotStatus(file.get(), name, &status)) {
+            ok = false;
+            continue;
+        }
+        ss << "    state: " << to_string(status.state) << std::endl;
+        ss << "    device size (bytes): " << status.device_size << std::endl;
+        ss << "    snapshot size (bytes): " << status.snapshot_size << std::endl;
+        ss << "    cow partition size (bytes): " << status.cow_partition_size << std::endl;
+        ss << "    cow file size (bytes): " << status.cow_file_size << std::endl;
+        ss << "    allocated sectors: " << status.sectors_allocated << std::endl;
+        ss << "    metadata sectors: " << status.metadata_sectors << std::endl;
+    }
+    os << ss.rdbuf();
+    return ok;
+}
+
 }  // namespace snapshot
 }  // namespace android
diff --git a/fs_mgr/libsnapshot/snapshotctl.cpp b/fs_mgr/libsnapshot/snapshotctl.cpp
new file mode 100644
index 0000000..d65320c
--- /dev/null
+++ b/fs_mgr/libsnapshot/snapshotctl.cpp
@@ -0,0 +1,115 @@
+//
+// Copyright (C) 2019 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include <sysexits.h>
+
+#include <chrono>
+#include <iostream>
+#include <map>
+
+#include <android-base/logging.h>
+#include <libsnapshot/snapshot.h>
+
+using namespace std::string_literals;
+
+int Usage() {
+    std::cerr << "snapshotctl: Control snapshots.\n"
+                 "Usage: snapshotctl [action] [flags]\n"
+                 "Actions:\n"
+                 "  dump\n"
+                 "    Print snapshot states.\n"
+                 "  merge [--logcat]\n"
+                 "    Initialize merge and wait for it to be completed.\n"
+                 "    If --logcat is specified, log to logcat. Otherwise, log to stdout.\n";
+    return EX_USAGE;
+}
+
+namespace android {
+namespace snapshot {
+
+bool DumpCmdHandler(int /*argc*/, char** argv) {
+    android::base::InitLogging(argv, &android::base::StderrLogger);
+    return SnapshotManager::New()->Dump(std::cout);
+}
+
+bool MergeCmdHandler(int argc, char** argv) {
+    auto begin = std::chrono::steady_clock::now();
+
+    bool log_to_logcat = false;
+    for (int i = 2; i < argc; ++i) {
+        if (argv[i] == "--logcat"s) {
+            log_to_logcat = true;
+        }
+    }
+    if (log_to_logcat) {
+        android::base::InitLogging(argv);
+    } else {
+        android::base::InitLogging(argv, &android::base::StdioLogger);
+    }
+
+    auto sm = SnapshotManager::New();
+
+    auto state = sm->GetUpdateState();
+    if (state == UpdateState::None) {
+        LOG(INFO) << "Can't find any snapshot to merge.";
+        return true;
+    }
+    if (state == UpdateState::Unverified) {
+        if (!sm->InitiateMerge()) {
+            LOG(ERROR) << "Failed to initiate merge.";
+            return false;
+        }
+    }
+
+    // All other states can be handled by ProcessUpdateState.
+    LOG(INFO) << "Waiting for any merge to complete. This can take up to 1 minute.";
+    state = SnapshotManager::New()->ProcessUpdateState();
+
+    if (state == UpdateState::MergeCompleted) {
+        auto end = std::chrono::steady_clock::now();
+        auto passed = std::chrono::duration_cast<std::chrono::milliseconds>(end - begin).count();
+        LOG(INFO) << "Snapshot merged in " << passed << " ms.";
+        return true;
+    }
+
+    LOG(ERROR) << "Snapshot failed to merge with state \"" << state << "\".";
+    return false;
+}
+
+static std::map<std::string, std::function<bool(int, char**)>> kCmdMap = {
+        // clang-format off
+        {"dump", DumpCmdHandler},
+        {"merge", MergeCmdHandler},
+        // clang-format on
+};
+
+}  // namespace snapshot
+}  // namespace android
+
+int main(int argc, char** argv) {
+    using namespace android::snapshot;
+    if (argc < 2) {
+        return Usage();
+    }
+
+    for (const auto& cmd : kCmdMap) {
+        if (cmd.first == argv[1]) {
+            return cmd.second(argc, argv) ? EX_OK : EX_SOFTWARE;
+        }
+    }
+
+    return Usage();
+}
diff --git a/fs_mgr/libsnapshot/snapshotctl.rc b/fs_mgr/libsnapshot/snapshotctl.rc
new file mode 100644
index 0000000..29707f1
--- /dev/null
+++ b/fs_mgr/libsnapshot/snapshotctl.rc
@@ -0,0 +1,2 @@
+on property:sys.boot_completed=1
+    exec - root root -- /system/bin/snapshotctl merge --logcat
diff --git a/init/uevent_listener.cpp b/init/uevent_listener.cpp
index ac633776..416d942 100644
--- a/init/uevent_listener.cpp
+++ b/init/uevent_listener.cpp
@@ -171,7 +171,7 @@
     return RegenerateUeventsForDir(d.get(), callback);
 }
 
-static const char* kRegenerationPaths[] = {"/sys/class", "/sys/block", "/sys/devices"};
+static const char* kRegenerationPaths[] = {"/sys/devices"};
 
 void UeventListener::RegenerateUevents(const ListenerCallback& callback) const {
     for (const auto path : kRegenerationPaths) {
diff --git a/libpackagelistparser/Android.bp b/libpackagelistparser/Android.bp
index 0740e7d..b56dcdb 100644
--- a/libpackagelistparser/Android.bp
+++ b/libpackagelistparser/Android.bp
@@ -19,4 +19,5 @@
         "libpackagelistparser",
     ],
     test_suites: ["device-tests"],
+    require_root: true,
 }
diff --git a/libutils/include/utils/Trace.h b/libutils/include/utils/Trace.h
index 4b9c91e..fec0ffa 100644
--- a/libutils/include/utils/Trace.h
+++ b/libutils/include/utils/Trace.h
@@ -17,7 +17,12 @@
 #ifndef ANDROID_TRACE_H
 #define ANDROID_TRACE_H
 
-#if defined(__ANDROID__)
+#if defined(_WIN32)
+
+#define ATRACE_NAME(...)
+#define ATRACE_CALL()
+
+#else  // !_WIN32
 
 #include <stdint.h>
 
@@ -51,11 +56,6 @@
 
 }  // namespace android
 
-#else // !__ANDROID__
-
-#define ATRACE_NAME(...)
-#define ATRACE_CALL()
-
-#endif // __ANDROID__
+#endif  // _WIN32
 
 #endif // ANDROID_TRACE_H
diff --git a/logd/LogAudit.cpp b/logd/LogAudit.cpp
index 5a375ec..665bd38 100644
--- a/logd/LogAudit.cpp
+++ b/logd/LogAudit.cpp
@@ -160,7 +160,7 @@
     }
     auto search = denial_to_bug.find(scontext + tcontext + tclass);
     if (search != denial_to_bug.end()) {
-        bug_num->assign(" b/" + search->second);
+        bug_num->assign(" " + search->second);
     } else {
         bug_num->assign("");
     }
diff --git a/property_service/libpropertyinfoserializer/Android.bp b/property_service/libpropertyinfoserializer/Android.bp
index e12be31..aa02a3a 100644
--- a/property_service/libpropertyinfoserializer/Android.bp
+++ b/property_service/libpropertyinfoserializer/Android.bp
@@ -1,7 +1,6 @@
 cc_defaults {
     name: "propertyinfoserializer_defaults",
     host_supported: true,
-    vendor_available: true,
     cpp_std: "experimental",
     cppflags: [
         "-Wall",
@@ -9,10 +8,8 @@
         "-Werror",
     ],
     static_libs: [
-        "libpropertyinfoparser",
-    ],
-    shared_libs: [
         "libbase",
+        "libpropertyinfoparser",
     ],
 }
 
diff --git a/rootdir/etc/ld.config.legacy.txt b/rootdir/etc/ld.config.legacy.txt
index c47b7f6..bb8d4d0 100644
--- a/rootdir/etc/ld.config.legacy.txt
+++ b/rootdir/etc/ld.config.legacy.txt
@@ -179,6 +179,7 @@
 namespace.neuralnetworks.link.default.shared_libs += liblog.so
 namespace.neuralnetworks.link.default.shared_libs += libm.so
 namespace.neuralnetworks.link.default.shared_libs += libnativewindow.so
+namespace.neuralnetworks.link.default.shared_libs += libneuralnetworks_packageinfo.so
 namespace.neuralnetworks.link.default.shared_libs += libsync.so
 namespace.neuralnetworks.link.default.shared_libs += libvndksupport.so
 
diff --git a/rootdir/etc/ld.config.txt b/rootdir/etc/ld.config.txt
index 5b92d48..60035aa 100644
--- a/rootdir/etc/ld.config.txt
+++ b/rootdir/etc/ld.config.txt
@@ -420,6 +420,7 @@
 namespace.neuralnetworks.link.default.shared_libs += liblog.so
 namespace.neuralnetworks.link.default.shared_libs += libm.so
 namespace.neuralnetworks.link.default.shared_libs += libnativewindow.so
+namespace.neuralnetworks.link.default.shared_libs += libneuralnetworks_packageinfo.so
 namespace.neuralnetworks.link.default.shared_libs += libsync.so
 namespace.neuralnetworks.link.default.shared_libs += libvndksupport.so
 
@@ -641,6 +642,7 @@
 namespace.neuralnetworks.link.system.shared_libs += liblog.so
 namespace.neuralnetworks.link.system.shared_libs += libm.so
 namespace.neuralnetworks.link.system.shared_libs += libnativewindow.so
+namespace.neuralnetworks.link.system.shared_libs += libneuralnetworks_packageinfo.so
 namespace.neuralnetworks.link.system.shared_libs += libsync.so
 namespace.neuralnetworks.link.system.shared_libs += libvndksupport.so
 
@@ -782,6 +784,7 @@
 namespace.neuralnetworks.link.default.shared_libs += liblog.so
 namespace.neuralnetworks.link.default.shared_libs += libm.so
 namespace.neuralnetworks.link.default.shared_libs += libnativewindow.so
+namespace.neuralnetworks.link.default.shared_libs += libneuralnetworks_packageinfo.so
 namespace.neuralnetworks.link.default.shared_libs += libsync.so
 namespace.neuralnetworks.link.default.shared_libs += libvndksupport.so
 
diff --git a/rootdir/etc/ld.config.vndk_lite.txt b/rootdir/etc/ld.config.vndk_lite.txt
index 8a27c7b..b9b95a6 100644
--- a/rootdir/etc/ld.config.vndk_lite.txt
+++ b/rootdir/etc/ld.config.vndk_lite.txt
@@ -344,6 +344,7 @@
 namespace.neuralnetworks.link.default.shared_libs += liblog.so
 namespace.neuralnetworks.link.default.shared_libs += libm.so
 namespace.neuralnetworks.link.default.shared_libs += libnativewindow.so
+namespace.neuralnetworks.link.default.shared_libs += libneuralnetworks_packageinfo.so
 namespace.neuralnetworks.link.default.shared_libs += libsync.so
 namespace.neuralnetworks.link.default.shared_libs += libvndksupport.so
 
@@ -445,6 +446,7 @@
 namespace.neuralnetworks.link.default.shared_libs += liblog.so
 namespace.neuralnetworks.link.default.shared_libs += libm.so
 namespace.neuralnetworks.link.default.shared_libs += libnativewindow.so
+namespace.neuralnetworks.link.default.shared_libs += libneuralnetworks_packageinfo.so
 namespace.neuralnetworks.link.default.shared_libs += libsync.so
 namespace.neuralnetworks.link.default.shared_libs += libvndksupport.so
 
@@ -585,6 +587,7 @@
 namespace.neuralnetworks.link.default.shared_libs += liblog.so
 namespace.neuralnetworks.link.default.shared_libs += libm.so
 namespace.neuralnetworks.link.default.shared_libs += libnativewindow.so
+namespace.neuralnetworks.link.default.shared_libs += libneuralnetworks_packageinfo.so
 namespace.neuralnetworks.link.default.shared_libs += libsync.so
 namespace.neuralnetworks.link.default.shared_libs += libvndksupport.so
 
diff --git a/rootdir/init.environ.rc.in b/rootdir/init.environ.rc.in
index 17f6596..50005d9 100644
--- a/rootdir/init.environ.rc.in
+++ b/rootdir/init.environ.rc.in
@@ -5,7 +5,7 @@
     export ANDROID_ASSETS /system/app
     export ANDROID_DATA /data
     export ANDROID_STORAGE /storage
-    export ANDROID_RUNTIME_ROOT /apex/com.android.art
+    export ANDROID_ART_ROOT /apex/com.android.art
     export ANDROID_I18N_ROOT /apex/com.android.i18n
     export ANDROID_TZDATA_ROOT /apex/com.android.tzdata
     export EXTERNAL_STORAGE /sdcard
diff --git a/rootdir/init.rc b/rootdir/init.rc
index d5fed5a..0fa6efc 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -154,6 +154,14 @@
     mkdir /mnt/user/0/self 0755 root root
     mkdir /mnt/user/0/emulated 0755 root root
     mkdir /mnt/user/0/emulated/0 0755 root root
+
+    # Prepare directories for pass through processes
+    mkdir /mnt/pass_through 0755 root root
+    mkdir /mnt/pass_through/0 0755 root root
+    mkdir /mnt/pass_through/0/self 0755 root root
+    mkdir /mnt/pass_through/0/emulated 0755 root root
+    mkdir /mnt/pass_through/0/emulated/0 0755 root root
+
     mkdir /mnt/expand 0771 system system
     mkdir /mnt/appfuse 0711 root root
 
@@ -678,6 +686,8 @@
   # Mount default storage into root namespace
   mount none /mnt/user/0 /storage bind rec
   mount none none /storage slave rec
+  # Bootstrap the emulated volume for the pass_through directory for user 0
+  mount none /data/media /mnt/pass_through/0/emulated bind rec
 on zygote-start && property:persist.sys.fuse=false
   # Mount default storage into root namespace
   mount none /mnt/runtime/default /storage bind rec