Merge "Mark as recovery_available: true"
diff --git a/adb/client/main.cpp b/adb/client/main.cpp
index 31cb853..44ed3a2 100644
--- a/adb/client/main.cpp
+++ b/adb/client/main.cpp
@@ -117,6 +117,7 @@
atexit(adb_server_cleanup);
init_transport_registration();
+ init_reconnect_handler();
init_mdns_transport_discovery();
usb_init();
diff --git a/adb/daemon/jdwp_service.cpp b/adb/daemon/jdwp_service.cpp
index 89577cb..3a3f399 100644
--- a/adb/daemon/jdwp_service.cpp
+++ b/adb/daemon/jdwp_service.cpp
@@ -292,8 +292,6 @@
goto CloseProcess;
}
- adb_close(fd);
-
D("sent file descriptor %d to JDWP process %d", fd, proc->pid);
proc->out_fds.pop_back();
diff --git a/adb/daemon/remount_service.cpp b/adb/daemon/remount_service.cpp
index 7876368..eb46903 100644
--- a/adb/daemon/remount_service.cpp
+++ b/adb/daemon/remount_service.cpp
@@ -21,6 +21,7 @@
#include <errno.h>
#include <fcntl.h>
#include <mntent.h>
+#include <spawn.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -106,6 +107,41 @@
return (info.feat_ro_compat & EXT4_FEATURE_RO_COMPAT_SHARED_BLOCKS) != 0;
}
+static bool can_unshare_blocks(int fd, const char* dev) {
+ const char* E2FSCK_BIN = "/system/bin/e2fsck";
+ if (access(E2FSCK_BIN, X_OK)) {
+ WriteFdFmt(fd, "e2fsck is not available, cannot undo deduplication on %s\n", dev);
+ return false;
+ }
+
+ pid_t child;
+ char* env[] = {nullptr};
+ const char* argv[] = {E2FSCK_BIN, "-n", "-E", "unshare_blocks", dev, nullptr};
+ if (posix_spawn(&child, E2FSCK_BIN, nullptr, nullptr, const_cast<char**>(argv), env)) {
+ WriteFdFmt(fd, "failed to e2fsck to check deduplication: %s\n", strerror(errno));
+ return false;
+ }
+ int status = 0;
+ int ret = TEMP_FAILURE_RETRY(waitpid(child, &status, 0));
+ if (ret < 0) {
+ WriteFdFmt(fd, "failed to get e2fsck status: %s\n", strerror(errno));
+ return false;
+ }
+ if (!WIFEXITED(status)) {
+ WriteFdFmt(fd, "e2fsck exited abnormally with status %d\n", status);
+ return false;
+ }
+ int rc = WEXITSTATUS(status);
+ if (rc != 0) {
+ WriteFdFmt(fd,
+ "%s is deduplicated, and an e2fsck check failed. It might not "
+ "have enough free-space to be remounted as writable.\n",
+ dev);
+ return false;
+ }
+ return true;
+}
+
static bool remount_partition(int fd, const char* dir, std::vector<std::string>& dedup) {
if (!directory_exists(dir)) {
return true;
@@ -133,6 +169,9 @@
}
if (mount(dev.c_str(), dir, "none", MS_REMOUNT, nullptr) == -1) {
if (errno == EROFS && fs_has_shared_blocks(dev.c_str())) {
+ if (!can_unshare_blocks(fd, dev.c_str())) {
+ return false;
+ }
// We return true so remount_service() can detect that the only
// failure was deduplicated filesystems.
dedup.push_back(dev);
diff --git a/adb/daemon/usb.cpp b/adb/daemon/usb.cpp
index ab11bdd..c724b11 100644
--- a/adb/daemon/usb.cpp
+++ b/adb/daemon/usb.cpp
@@ -234,6 +234,10 @@
for (unsigned i = 0; i < USB_FFS_NUM_BUFS; i++) {
aiob->iocbs[i] = &aiob->iocb[i];
}
+ memset(&aiob->ctx, 0, sizeof(aiob->ctx));
+ if (io_setup(USB_FFS_NUM_BUFS, &aiob->ctx)) {
+ D("[ aio: got error on io_setup (%d) ]", errno);
+ }
}
static int getMaxPacketSize(int ffs_fd) {
@@ -312,13 +316,6 @@
goto err;
}
- memset(&h->read_aiob.ctx, 0, sizeof(h->read_aiob.ctx));
- memset(&h->write_aiob.ctx, 0, sizeof(h->write_aiob.ctx));
- if (io_setup(USB_FFS_NUM_BUFS, &h->read_aiob.ctx) ||
- io_setup(USB_FFS_NUM_BUFS, &h->write_aiob.ctx)) {
- D("[ aio: got error on io_setup (%d) ]", errno);
- }
-
h->read_aiob.fd = h->bulk_out;
h->write_aiob.fd = h->bulk_in;
return true;
@@ -439,23 +436,29 @@
num_bufs += 1;
}
- if (io_submit(aiob->ctx, num_bufs, aiob->iocbs.data()) < num_bufs) {
- D("[ aio: got error submitting %s (%d) ]", read ? "read" : "write", errno);
- return -1;
- }
- if (TEMP_FAILURE_RETRY(
- io_getevents(aiob->ctx, num_bufs, num_bufs, aiob->events.data(), nullptr)) < num_bufs) {
- D("[ aio: got error waiting %s (%d) ]", read ? "read" : "write", errno);
- return -1;
- }
- for (int i = 0; i < num_bufs; i++) {
- if (aiob->events[i].res < 0) {
- errno = aiob->events[i].res;
- D("[ aio: got error event on %s (%d) ]", read ? "read" : "write", errno);
+ while (true) {
+ if (TEMP_FAILURE_RETRY(io_submit(aiob->ctx, num_bufs, aiob->iocbs.data())) < num_bufs) {
+ PLOG(ERROR) << "aio: got error submitting " << (read ? "read" : "write");
return -1;
}
+ if (TEMP_FAILURE_RETRY(io_getevents(aiob->ctx, num_bufs, num_bufs, aiob->events.data(),
+ nullptr)) < num_bufs) {
+ PLOG(ERROR) << "aio: got error waiting " << (read ? "read" : "write");
+ return -1;
+ }
+ if (num_bufs == 1 && aiob->events[0].res == -EINTR) {
+ continue;
+ }
+ for (int i = 0; i < num_bufs; i++) {
+ if (aiob->events[i].res < 0) {
+ errno = -aiob->events[i].res;
+ PLOG(ERROR) << "aio: got error event on " << (read ? "read" : "write")
+ << " total bufs " << num_bufs;
+ return -1;
+ }
+ }
+ return 0;
}
- return 0;
}
static int usb_ffs_aio_read(usb_handle* h, void* data, int len) {
@@ -494,8 +497,6 @@
h->kicked = false;
adb_close(h->bulk_out);
adb_close(h->bulk_in);
- io_destroy(h->read_aiob.ctx);
- io_destroy(h->write_aiob.ctx);
// Notify usb_adb_open_thread to open a new connection.
h->lock.lock();
diff --git a/adb/test_adb.py b/adb/test_adb.py
index 32bf029..ddd3ff0 100644
--- a/adb/test_adb.py
+++ b/adb/test_adb.py
@@ -36,10 +36,11 @@
@contextlib.contextmanager
-def fake_adb_server(protocol=socket.AF_INET, port=0):
- """Creates a fake ADB server that just replies with a CNXN packet."""
+def fake_adbd(protocol=socket.AF_INET, port=0):
+ """Creates a fake ADB daemon that just replies with a CNXN packet."""
serversock = socket.socket(protocol, socket.SOCK_STREAM)
+ serversock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
if protocol == socket.AF_INET:
serversock.bind(('127.0.0.1', port))
else:
@@ -60,31 +61,33 @@
rlist = [readpipe, serversock]
cnxn_sent = {}
while True:
- ready, _, _ = select.select(rlist, [], [])
- for r in ready:
- if r == readpipe:
+ read_ready, _, _ = select.select(rlist, [], [])
+ for ready in read_ready:
+ if ready == readpipe:
# Closure pipe
- os.close(r)
+ os.close(ready)
serversock.shutdown(socket.SHUT_RDWR)
serversock.close()
return
- elif r == serversock:
+ elif ready == serversock:
# Server socket
- conn, _ = r.accept()
+ conn, _ = ready.accept()
rlist.append(conn)
else:
# Client socket
- data = r.recv(1024)
- if not data:
- if r in cnxn_sent:
- del cnxn_sent[r]
- rlist.remove(r)
+ data = ready.recv(1024)
+ if not data or data.startswith('OPEN'):
+ if ready in cnxn_sent:
+ del cnxn_sent[ready]
+ ready.shutdown(socket.SHUT_RDWR)
+ ready.close()
+ rlist.remove(ready)
continue
- if r in cnxn_sent:
+ if ready in cnxn_sent:
continue
- cnxn_sent[r] = True
- r.sendall(_adb_packet('CNXN', 0x01000001, 1024 * 1024,
- 'device::ro.product.name=fakeadb'))
+ cnxn_sent[ready] = True
+ ready.sendall(_adb_packet('CNXN', 0x01000001, 1024 * 1024,
+ 'device::ro.product.name=fakeadb'))
port = serversock.getsockname()[1]
server_thread = threading.Thread(target=_handle)
@@ -97,8 +100,52 @@
server_thread.join()
-class NonApiTest(unittest.TestCase):
- """Tests for ADB that aren't a part of the AndroidDevice API."""
+@contextlib.contextmanager
+def adb_connect(unittest, serial):
+ """Context manager for an ADB connection.
+
+ This automatically disconnects when done with the connection.
+ """
+
+ output = subprocess.check_output(['adb', 'connect', serial])
+ unittest.assertEqual(output.strip(), 'connected to {}'.format(serial))
+
+ try:
+ yield
+ finally:
+ # Perform best-effort disconnection. Discard the output.
+ subprocess.Popen(['adb', 'disconnect', serial],
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE).communicate()
+
+
+@contextlib.contextmanager
+def adb_server():
+ """Context manager for an ADB server.
+
+ This creates an ADB server and returns the port it's listening on.
+ """
+
+ port = 5038
+ # Kill any existing server on this non-default port.
+ subprocess.check_output(['adb', '-P', str(port), 'kill-server'],
+ stderr=subprocess.STDOUT)
+ read_pipe, write_pipe = os.pipe()
+ proc = subprocess.Popen(['adb', '-L', 'tcp:localhost:{}'.format(port),
+ 'fork-server', 'server',
+ '--reply-fd', str(write_pipe)])
+ try:
+ os.close(write_pipe)
+ greeting = os.read(read_pipe, 1024)
+ assert greeting == 'OK\n', repr(greeting)
+ yield port
+ finally:
+ proc.terminate()
+ proc.wait()
+
+
+class CommandlineTest(unittest.TestCase):
+ """Tests for the ADB commandline."""
def test_help(self):
"""Make sure we get _something_ out of help."""
@@ -120,28 +167,37 @@
revision_line, r'^Revision [0-9a-f]{12}-android$')
def test_tcpip_error_messages(self):
- p = subprocess.Popen(['adb', 'tcpip'], stdout=subprocess.PIPE,
- stderr=subprocess.STDOUT)
- out, _ = p.communicate()
- self.assertEqual(1, p.returncode)
+ """Make sure 'adb tcpip' parsing is sane."""
+ proc = subprocess.Popen(['adb', 'tcpip'], stdout=subprocess.PIPE,
+ stderr=subprocess.STDOUT)
+ out, _ = proc.communicate()
+ self.assertEqual(1, proc.returncode)
self.assertIn('requires an argument', out)
- p = subprocess.Popen(['adb', 'tcpip', 'foo'], stdout=subprocess.PIPE,
- stderr=subprocess.STDOUT)
- out, _ = p.communicate()
- self.assertEqual(1, p.returncode)
+ proc = subprocess.Popen(['adb', 'tcpip', 'foo'], stdout=subprocess.PIPE,
+ stderr=subprocess.STDOUT)
+ out, _ = proc.communicate()
+ self.assertEqual(1, proc.returncode)
self.assertIn('invalid port', out)
- # Helper method that reads a pipe until it is closed, then sets the event.
- def _read_pipe_and_set_event(self, pipe, event):
- x = pipe.read()
+
+class ServerTest(unittest.TestCase):
+ """Tests for the ADB server."""
+
+ @staticmethod
+ def _read_pipe_and_set_event(pipe, event):
+ """Reads a pipe until it is closed, then sets the event."""
+ pipe.read()
event.set()
- # Test that launch_server() does not let the adb server inherit
- # stdin/stdout/stderr handles which can cause callers of adb.exe to hang.
- # This test also runs fine on unix even though the impetus is an issue
- # unique to Windows.
def test_handle_inheritance(self):
+ """Test that launch_server() does not inherit handles.
+
+ launch_server() should not let the adb server inherit
+ stdin/stdout/stderr handles, which can cause callers of adb.exe to hang.
+ This test also runs fine on unix even though the impetus is an issue
+ unique to Windows.
+ """
# This test takes 5 seconds to run on Windows: if there is no adb server
# running on the the port used below, adb kill-server tries to make a
# TCP connection to a closed port and that takes 1 second on Windows;
@@ -163,29 +219,30 @@
try:
# Run the adb client and have it start the adb server.
- p = subprocess.Popen(['adb', '-P', str(port), 'start-server'],
- stdin=subprocess.PIPE, stdout=subprocess.PIPE,
- stderr=subprocess.PIPE)
+ proc = subprocess.Popen(['adb', '-P', str(port), 'start-server'],
+ stdin=subprocess.PIPE,
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE)
# Start threads that set events when stdout/stderr are closed.
stdout_event = threading.Event()
stdout_thread = threading.Thread(
- target=self._read_pipe_and_set_event,
- args=(p.stdout, stdout_event))
+ target=ServerTest._read_pipe_and_set_event,
+ args=(proc.stdout, stdout_event))
stdout_thread.daemon = True
stdout_thread.start()
stderr_event = threading.Event()
stderr_thread = threading.Thread(
- target=self._read_pipe_and_set_event,
- args=(p.stderr, stderr_event))
+ target=ServerTest._read_pipe_and_set_event,
+ args=(proc.stderr, stderr_event))
stderr_thread.daemon = True
stderr_thread.start()
# Wait for the adb client to finish. Once that has occurred, if
# stdin/stderr/stdout are still open, it must be open in the adb
# server.
- p.wait()
+ proc.wait()
# Try to write to stdin which we expect is closed. If it isn't
# closed, we should get an IOError. If we don't get an IOError,
@@ -193,7 +250,7 @@
# probably letting the adb server inherit stdin which would be
# wrong.
with self.assertRaises(IOError):
- p.stdin.write('x')
+ proc.stdin.write('x')
# Wait a few seconds for stdout/stderr to be closed (in the success
# case, this won't wait at all). If there is a timeout, that means
@@ -207,8 +264,12 @@
subprocess.check_output(['adb', '-P', str(port), 'kill-server'],
stderr=subprocess.STDOUT)
- # Use SO_LINGER to cause TCP RST segment to be sent on socket close.
+
+class EmulatorTest(unittest.TestCase):
+ """Tests for the emulator connection."""
+
def _reset_socket_on_close(self, sock):
+ """Use SO_LINGER to cause TCP RST segment to be sent on socket close."""
# The linger structure is two shorts on Windows, but two ints on Unix.
linger_format = 'hh' if os.name == 'nt' else 'ii'
l_onoff = 1
@@ -227,7 +288,7 @@
Bug: https://code.google.com/p/android/issues/detail?id=21021
"""
with contextlib.closing(
- socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as listener:
+ socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as listener:
# Use SO_REUSEADDR so subsequent runs of the test can grab the port
# even if it is in TIME_WAIT.
listener.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
@@ -237,7 +298,7 @@
# Now that listening has started, start adb emu kill, telling it to
# connect to our mock emulator.
- p = subprocess.Popen(
+ proc = subprocess.Popen(
['adb', '-s', 'emulator-' + str(port), 'emu', 'kill'],
stderr=subprocess.STDOUT)
@@ -246,12 +307,16 @@
# If WSAECONNABORTED (10053) is raised by any socket calls,
# then adb probably isn't reading the data that we sent it.
conn.sendall('Android Console: type \'help\' for a list ' +
- 'of commands\r\n')
+ 'of commands\r\n')
conn.sendall('OK\r\n')
- with contextlib.closing(conn.makefile()) as f:
- self.assertEqual('kill\n', f.readline())
- self.assertEqual('quit\n', f.readline())
+ with contextlib.closing(conn.makefile()) as connf:
+ line = connf.readline()
+ if line.startswith('auth'):
+ # Ignore the first auth line.
+ line = connf.readline()
+ self.assertEqual('kill\n', line)
+ self.assertEqual('quit\n', connf.readline())
conn.sendall('OK: killing emulator, bye bye\r\n')
@@ -264,11 +329,48 @@
self._reset_socket_on_close(conn)
# Wait for adb to finish, so we can check return code.
- p.communicate()
+ proc.communicate()
# If this fails, adb probably isn't ignoring WSAECONNRESET when
# reading the response from the adb emu kill command (on Windows).
- self.assertEqual(0, p.returncode)
+ self.assertEqual(0, proc.returncode)
+
+ def test_emulator_connect(self):
+ """Ensure that the emulator can connect.
+
+ Bug: http://b/78991667
+ """
+ with adb_server() as server_port:
+ with fake_adbd() as port:
+ serial = 'emulator-{}'.format(port - 1)
+ # Ensure that the emulator is not there.
+ try:
+ subprocess.check_output(['adb', '-P', str(server_port),
+ '-s', serial, 'get-state'],
+ stderr=subprocess.STDOUT)
+ self.fail('Device should not be available')
+ except subprocess.CalledProcessError as err:
+ self.assertEqual(
+ err.output.strip(),
+ 'error: device \'{}\' not found'.format(serial))
+
+ # Let the ADB server know that the emulator has started.
+ with contextlib.closing(
+ socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as sock:
+ sock.connect(('localhost', server_port))
+ command = 'host:emulator:{}'.format(port)
+ sock.sendall('%04x%s' % (len(command), command))
+
+ # Ensure the emulator is there.
+ subprocess.check_call(['adb', '-P', str(server_port),
+ '-s', serial, 'wait-for-device'])
+ output = subprocess.check_output(['adb', '-P', str(server_port),
+ '-s', serial, 'get-state'])
+ self.assertEqual(output.strip(), 'device')
+
+
+class ConnectionTest(unittest.TestCase):
+ """Tests for adb connect."""
def test_connect_ipv4_ipv6(self):
"""Ensure that `adb connect localhost:1234` will try both IPv4 and IPv6.
@@ -277,38 +379,67 @@
"""
for protocol in (socket.AF_INET, socket.AF_INET6):
try:
- with fake_adb_server(protocol=protocol) as port:
- output = subprocess.check_output(
- ['adb', 'connect', 'localhost:{}'.format(port)])
-
- self.assertEqual(
- output.strip(), 'connected to localhost:{}'.format(port))
+ with fake_adbd(protocol=protocol) as port:
+ serial = 'localhost:{}'.format(port)
+ with adb_connect(self, serial):
+ pass
except socket.error:
print("IPv6 not available, skipping")
continue
def test_already_connected(self):
- with fake_adb_server() as port:
- output = subprocess.check_output(
- ['adb', 'connect', 'localhost:{}'.format(port)])
+ """Ensure that an already-connected device stays connected."""
- self.assertEqual(
- output.strip(), 'connected to localhost:{}'.format(port))
+ with fake_adbd() as port:
+ serial = 'localhost:{}'.format(port)
+ with adb_connect(self, serial):
+ # b/31250450: this always returns 0 but probably shouldn't.
+ output = subprocess.check_output(['adb', 'connect', serial])
+ self.assertEqual(
+ output.strip(), 'already connected to {}'.format(serial))
- # b/31250450: this always returns 0 but probably shouldn't.
- output = subprocess.check_output(
- ['adb', 'connect', 'localhost:{}'.format(port)])
+ def test_reconnect(self):
+ """Ensure that a disconnected device reconnects."""
- self.assertEqual(
- output.strip(), 'already connected to localhost:{}'.format(port))
+ with fake_adbd() as port:
+ serial = 'localhost:{}'.format(port)
+ with adb_connect(self, serial):
+ output = subprocess.check_output(['adb', '-s', serial,
+ 'get-state'])
+ self.assertEqual(output.strip(), 'device')
+
+ # This will fail.
+ proc = subprocess.Popen(['adb', '-s', serial, 'shell', 'true'],
+ stdout=subprocess.PIPE,
+ stderr=subprocess.STDOUT)
+ output, _ = proc.communicate()
+ self.assertEqual(output.strip(), 'error: closed')
+
+ subprocess.check_call(['adb', '-s', serial, 'wait-for-device'])
+
+ output = subprocess.check_output(['adb', '-s', serial,
+ 'get-state'])
+ self.assertEqual(output.strip(), 'device')
+
+ # Once we explicitly kick a device, it won't attempt to
+ # reconnect.
+ output = subprocess.check_output(['adb', 'disconnect', serial])
+ self.assertEqual(
+ output.strip(), 'disconnected {}'.format(serial))
+ try:
+ subprocess.check_output(['adb', '-s', serial, 'get-state'],
+ stderr=subprocess.STDOUT)
+ self.fail('Device should not be available')
+ except subprocess.CalledProcessError as err:
+ self.assertEqual(
+ err.output.strip(),
+ 'error: device \'{}\' not found'.format(serial))
+
def main():
+ """Main entrypoint."""
random.seed(0)
- if len(adb.get_devices()) > 0:
- suite = unittest.TestLoader().loadTestsFromName(__name__)
- unittest.TextTestRunner(verbosity=3).run(suite)
- else:
- print('Test suite must be run with attached devices')
+ unittest.main(verbosity=3)
if __name__ == '__main__':
diff --git a/adb/transport.cpp b/adb/transport.cpp
index be7f8fe..beec13a 100644
--- a/adb/transport.cpp
+++ b/adb/transport.cpp
@@ -33,6 +33,7 @@
#include <deque>
#include <list>
#include <mutex>
+#include <queue>
#include <thread>
#include <android-base/logging.h>
@@ -50,7 +51,9 @@
#include "adb_utils.h"
#include "fdevent.h"
-static void transport_unref(atransport *t);
+static void register_transport(atransport* transport);
+static void remove_transport(atransport* transport);
+static void transport_unref(atransport* transport);
// TODO: unordered_map<TransportId, atransport*>
static auto& transport_list = *new std::list<atransport*>();
@@ -77,6 +80,130 @@
~ScopedAssumeLocked() RELEASE() {}
};
+// Tracks and handles atransport*s that are attempting reconnection.
+class ReconnectHandler {
+ public:
+ ReconnectHandler() = default;
+ ~ReconnectHandler() = default;
+
+ // Starts the ReconnectHandler thread.
+ void Start();
+
+ // Requests the ReconnectHandler thread to stop.
+ void Stop();
+
+ // Adds the atransport* to the queue of reconnect attempts.
+ void TrackTransport(atransport* transport);
+
+ private:
+ // The main thread loop.
+ void Run();
+
+ // Tracks a reconnection attempt.
+ struct ReconnectAttempt {
+ atransport* transport;
+ std::chrono::system_clock::time_point deadline;
+ size_t attempts_left;
+ };
+
+ // Only retry for up to one minute.
+ static constexpr const std::chrono::seconds kDefaultTimeout = std::chrono::seconds(10);
+ static constexpr const size_t kMaxAttempts = 6;
+
+ // Protects all members.
+ std::mutex reconnect_mutex_;
+ bool running_ GUARDED_BY(reconnect_mutex_) = true;
+ std::thread handler_thread_;
+ std::condition_variable reconnect_cv_;
+ std::queue<ReconnectAttempt> reconnect_queue_ GUARDED_BY(reconnect_mutex_);
+
+ DISALLOW_COPY_AND_ASSIGN(ReconnectHandler);
+};
+
+void ReconnectHandler::Start() {
+ check_main_thread();
+ handler_thread_ = std::thread(&ReconnectHandler::Run, this);
+}
+
+void ReconnectHandler::Stop() {
+ check_main_thread();
+ {
+ std::lock_guard<std::mutex> lock(reconnect_mutex_);
+ running_ = false;
+ }
+ reconnect_cv_.notify_one();
+ handler_thread_.join();
+
+ // Drain the queue to free all resources.
+ std::lock_guard<std::mutex> lock(reconnect_mutex_);
+ while (!reconnect_queue_.empty()) {
+ ReconnectAttempt attempt = reconnect_queue_.front();
+ reconnect_queue_.pop();
+ remove_transport(attempt.transport);
+ }
+}
+
+void ReconnectHandler::TrackTransport(atransport* transport) {
+ check_main_thread();
+ {
+ std::lock_guard<std::mutex> lock(reconnect_mutex_);
+ if (!running_) return;
+ reconnect_queue_.emplace(ReconnectAttempt{
+ transport, std::chrono::system_clock::now() + ReconnectHandler::kDefaultTimeout,
+ ReconnectHandler::kMaxAttempts});
+ }
+ reconnect_cv_.notify_one();
+}
+
+void ReconnectHandler::Run() {
+ while (true) {
+ ReconnectAttempt attempt;
+ {
+ std::unique_lock<std::mutex> lock(reconnect_mutex_);
+ ScopedAssumeLocked assume_lock(reconnect_mutex_);
+
+ auto deadline = std::chrono::time_point<std::chrono::system_clock>::max();
+ if (!reconnect_queue_.empty()) deadline = reconnect_queue_.front().deadline;
+ reconnect_cv_.wait_until(lock, deadline, [&]() REQUIRES(reconnect_mutex_) {
+ return !running_ ||
+ (!reconnect_queue_.empty() && reconnect_queue_.front().deadline < deadline);
+ });
+
+ if (!running_) return;
+ attempt = reconnect_queue_.front();
+ reconnect_queue_.pop();
+ if (attempt.transport->kicked()) {
+ D("transport %s was kicked. giving up on it.", attempt.transport->serial);
+ remove_transport(attempt.transport);
+ continue;
+ }
+ }
+ D("attempting to reconnect %s", attempt.transport->serial);
+
+ if (!attempt.transport->Reconnect()) {
+ D("attempting to reconnect %s failed.", attempt.transport->serial);
+ if (attempt.attempts_left == 0) {
+ D("transport %s exceeded the number of retry attempts. giving up on it.",
+ attempt.transport->serial);
+ remove_transport(attempt.transport);
+ continue;
+ }
+
+ std::lock_guard<std::mutex> lock(reconnect_mutex_);
+ reconnect_queue_.emplace(ReconnectAttempt{
+ attempt.transport,
+ std::chrono::system_clock::now() + ReconnectHandler::kDefaultTimeout,
+ attempt.attempts_left - 1});
+ continue;
+ }
+
+ D("reconnection to %s succeeded.", attempt.transport->serial);
+ register_transport(attempt.transport);
+ }
+}
+
+static auto& reconnect_handler = *new ReconnectHandler();
+
} // namespace
TransportId NextTransportId() {
@@ -477,8 +604,6 @@
return 0;
}
-static void remove_transport(atransport*);
-
static void transport_registration_func(int _fd, unsigned ev, void*) {
tmsg m;
atransport* t;
@@ -515,8 +640,9 @@
/* don't create transport threads for inaccessible devices */
if (t->GetConnectionState() != kCsNoPerm) {
- /* initial references are the two threads */
- t->ref_count = 1;
+ // The connection gets a reference to the atransport. It will release it
+ // upon a read/write error.
+ t->ref_count++;
t->connection()->SetTransportName(t->serial_name());
t->connection()->SetReadCallback([t](Connection*, std::unique_ptr<apacket> p) {
if (!check_header(p.get(), t)) {
@@ -547,13 +673,20 @@
{
std::lock_guard<std::recursive_mutex> lock(transport_lock);
- pending_list.remove(t);
- transport_list.push_front(t);
+ auto it = std::find(pending_list.begin(), pending_list.end(), t);
+ if (it != pending_list.end()) {
+ pending_list.remove(t);
+ transport_list.push_front(t);
+ }
}
update_transports();
}
+void init_reconnect_handler(void) {
+ reconnect_handler.Start();
+}
+
void init_transport_registration(void) {
int s[2];
@@ -572,6 +705,7 @@
}
void kick_all_transports() {
+ reconnect_handler.Stop();
// To avoid only writing part of a packet to a transport after exit, kick all transports.
std::lock_guard<std::recursive_mutex> lock(transport_lock);
for (auto t : transport_list) {
@@ -601,15 +735,21 @@
}
static void transport_unref(atransport* t) {
+ check_main_thread();
CHECK(t != nullptr);
std::lock_guard<std::recursive_mutex> lock(transport_lock);
CHECK_GT(t->ref_count, 0u);
t->ref_count--;
if (t->ref_count == 0) {
- D("transport: %s unref (kicking and closing)", t->serial);
t->connection()->Stop();
- remove_transport(t);
+ if (t->IsTcpDevice() && !t->kicked()) {
+ D("transport: %s unref (attempting reconnection) %d", t->serial, t->kicked());
+ reconnect_handler.TrackTransport(t);
+ } else {
+ D("transport: %s unref (kicking and closing)", t->serial);
+ remove_transport(t);
+ }
} else {
D("transport: %s unref (count=%zu)", t->serial, t->ref_count);
}
@@ -781,9 +921,8 @@
}
void atransport::Kick() {
- if (!kicked_) {
- D("kicking transport %s", this->serial);
- kicked_ = true;
+ if (!kicked_.exchange(true)) {
+ D("kicking transport %p %s", this, this->serial);
this->connection()->Stop();
}
}
@@ -941,6 +1080,10 @@
connection_waitable_->SetConnectionEstablished(success);
}
+bool atransport::Reconnect() {
+ return reconnect_(this);
+}
+
#if ADB_HOST
// We use newline as our delimiter, make sure to never output it.
@@ -1021,8 +1164,9 @@
}
#endif // ADB_HOST
-int register_socket_transport(int s, const char* serial, int port, int local) {
- atransport* t = new atransport();
+int register_socket_transport(int s, const char* serial, int port, int local,
+ atransport::ReconnectCallback reconnect) {
+ atransport* t = new atransport(std::move(reconnect), kCsOffline);
if (!serial) {
char buf[32];
@@ -1103,7 +1247,7 @@
void register_usb_transport(usb_handle* usb, const char* serial, const char* devpath,
unsigned writeable) {
- atransport* t = new atransport((writeable ? kCsConnecting : kCsNoPerm));
+ atransport* t = new atransport(writeable ? kCsOffline : kCsNoPerm);
D("transport: %p init'ing for usb_handle %p (sn='%s')", t, usb, serial ? serial : "");
init_usb_transport(t, usb);
diff --git a/adb/transport.h b/adb/transport.h
index e1cbc09..ae9cc02 100644
--- a/adb/transport.h
+++ b/adb/transport.h
@@ -198,20 +198,27 @@
// class in one go is a very large change. Given how bad our testing is,
// it's better to do this piece by piece.
- atransport(ConnectionState state = kCsConnecting)
+ using ReconnectCallback = std::function<bool(atransport*)>;
+
+ atransport(ReconnectCallback reconnect, ConnectionState state)
: id(NextTransportId()),
+ kicked_(false),
connection_state_(state),
connection_waitable_(std::make_shared<ConnectionWaitable>()),
- connection_(nullptr) {
+ connection_(nullptr),
+ reconnect_(std::move(reconnect)) {
// Initialize protocol to min version for compatibility with older versions.
// Version will be updated post-connect.
protocol_version = A_VERSION_MIN;
max_payload = MAX_PAYLOAD;
}
+ atransport(ConnectionState state = kCsOffline)
+ : atransport([](atransport*) { return false; }, state) {}
virtual ~atransport();
int Write(apacket* p);
void Kick();
+ bool kicked() const { return kicked_; }
// ConnectionState can be read by all threads, but can only be written in the main thread.
ConnectionState GetConnectionState() const;
@@ -286,8 +293,12 @@
// Gets a shared reference to the ConnectionWaitable.
std::shared_ptr<ConnectionWaitable> connection_waitable() { return connection_waitable_; }
+ // Attempts to reconnect with the underlying Connection. Returns true if the
+ // reconnection attempt succeeded.
+ bool Reconnect();
+
private:
- bool kicked_ = false;
+ std::atomic<bool> kicked_;
// A set of features transmitted in the banner with the initial connection.
// This is stored in the banner as 'features=feature0,feature1,etc'.
@@ -310,6 +321,9 @@
// The underlying connection object.
std::shared_ptr<Connection> connection_ GUARDED_BY(mutex_);
+ // A callback that will be invoked when the atransport needs to reconnect.
+ ReconnectCallback reconnect_;
+
std::mutex mutex_;
DISALLOW_COPY_AND_ASSIGN(atransport);
@@ -333,6 +347,7 @@
// Stops iteration and returns false if fn returns false, otherwise returns true.
bool iterate_transports(std::function<bool(const atransport*)> fn);
+void init_reconnect_handler(void);
void init_transport_registration(void);
void init_mdns_transport_discovery(void);
std::string list_transports(bool long_listing);
@@ -347,7 +362,8 @@
void connect_device(const std::string& address, std::string* response);
/* cause new transports to be init'd and added to the list */
-int register_socket_transport(int s, const char* serial, int port, int local);
+int register_socket_transport(int s, const char* serial, int port, int local,
+ atransport::ReconnectCallback reconnect);
// This should only be used for transports with connection_state == kCsNoPerm.
void unregister_usb_transport(usb_handle* usb);
diff --git a/adb/transport_local.cpp b/adb/transport_local.cpp
index e81f27c..181d666 100644
--- a/adb/transport_local.cpp
+++ b/adb/transport_local.cpp
@@ -68,28 +68,24 @@
return local_connect_arbitrary_ports(port - 1, port, &dummy) == 0;
}
-void connect_device(const std::string& address, std::string* response) {
- if (address.empty()) {
- *response = "empty address";
- return;
- }
-
+std::tuple<unique_fd, int, std::string> tcp_connect(const std::string& address,
+ std::string* response) {
std::string serial;
std::string host;
int port = DEFAULT_ADB_LOCAL_TRANSPORT_PORT;
if (!android::base::ParseNetAddress(address, &host, &port, &serial, response)) {
- return;
+ return std::make_tuple(unique_fd(), port, serial);
}
std::string error;
- int fd = network_connect(host.c_str(), port, SOCK_STREAM, 10, &error);
+ unique_fd fd(network_connect(host.c_str(), port, SOCK_STREAM, 10, &error));
if (fd == -1) {
*response = android::base::StringPrintf("unable to connect to %s: %s",
serial.c_str(), error.c_str());
- return;
+ return std::make_tuple(std::move(fd), port, serial);
}
- D("client: connected %s remote on fd %d", serial.c_str(), fd);
+ D("client: connected %s remote on fd %d", serial.c_str(), fd.get());
close_on_exec(fd);
disable_tcp_nagle(fd);
@@ -98,7 +94,38 @@
D("warning: failed to configure TCP keepalives (%s)", strerror(errno));
}
- int ret = register_socket_transport(fd, serial.c_str(), port, 0);
+ return std::make_tuple(std::move(fd), port, serial);
+}
+
+void connect_device(const std::string& address, std::string* response) {
+ if (address.empty()) {
+ *response = "empty address";
+ return;
+ }
+
+ unique_fd fd;
+ int port;
+ std::string serial;
+ std::tie(fd, port, serial) = tcp_connect(address, response);
+ auto reconnect = [address](atransport* t) {
+ std::string response;
+ unique_fd fd;
+ int port;
+ std::string serial;
+ std::tie(fd, port, serial) = tcp_connect(address, &response);
+ if (fd == -1) {
+ D("reconnect failed: %s", response.c_str());
+ return false;
+ }
+
+ // This invokes the part of register_socket_transport() that needs to be
+ // invoked if the atransport* has already been setup. This eventually
+ // calls atransport->SetConnection() with a newly created Connection*
+ // that will in turn send the CNXN packet.
+ return init_socket_transport(t, fd.release(), port, 0) >= 0;
+ };
+
+ int ret = register_socket_transport(fd.release(), serial.c_str(), port, 0, std::move(reconnect));
if (ret < 0) {
adb_close(fd);
if (ret == -EALREADY) {
@@ -135,7 +162,8 @@
close_on_exec(fd);
disable_tcp_nagle(fd);
std::string serial = getEmulatorSerialString(console_port);
- if (register_socket_transport(fd, serial.c_str(), adb_port, 1) == 0) {
+ if (register_socket_transport(fd, serial.c_str(), adb_port, 1,
+ [](atransport*) { return false; }) == 0) {
return 0;
}
adb_close(fd);
@@ -239,7 +267,8 @@
close_on_exec(fd);
disable_tcp_nagle(fd);
std::string serial = android::base::StringPrintf("host-%d", fd);
- if (register_socket_transport(fd, serial.c_str(), port, 1) != 0) {
+ if (register_socket_transport(fd, serial.c_str(), port, 1,
+ [](atransport*) { return false; }) != 0) {
adb_close(fd);
}
}
@@ -338,7 +367,8 @@
/* Host is connected. Register the transport, and start the
* exchange. */
std::string serial = android::base::StringPrintf("host-%d", fd);
- if (register_socket_transport(fd, serial.c_str(), port, 1) != 0 ||
+ if (register_socket_transport(fd, serial.c_str(), port, 1,
+ [](atransport*) { return false; }) != 0 ||
!WriteFdExactly(fd, _start_req, strlen(_start_req))) {
adb_close(fd);
}
diff --git a/debuggerd/handler/debuggerd_fallback.cpp b/debuggerd/handler/debuggerd_fallback.cpp
index dea2e17..079a574 100644
--- a/debuggerd/handler/debuggerd_fallback.cpp
+++ b/debuggerd/handler/debuggerd_fallback.cpp
@@ -304,7 +304,16 @@
crash_mutex.lock();
if (lock_count++ > 0) {
- async_safe_format_log(ANDROID_LOG_ERROR, "libc", "recursed signal handler call, exiting");
+ async_safe_format_log(ANDROID_LOG_ERROR, "libc", "recursed signal handler call, aborting");
+ signal(SIGABRT, SIG_DFL);
+ raise(SIGABRT);
+ sigset_t sigset;
+ sigemptyset(&sigset);
+ sigaddset(&sigset, SIGABRT);
+ sigprocmask(SIG_UNBLOCK, &sigset, nullptr);
+
+ // Just in case...
+ async_safe_format_log(ANDROID_LOG_ERROR, "libc", "abort didn't exit, exiting");
_exit(1);
}
diff --git a/fs_mgr/Android.bp b/fs_mgr/Android.bp
index f23150d..05dba15 100644
--- a/fs_mgr/Android.bp
+++ b/fs_mgr/Android.bp
@@ -42,6 +42,7 @@
"fs_mgr_verity.cpp",
"fs_mgr_avb.cpp",
"fs_mgr_avb_ops.cpp",
+ "fs_mgr_dm_linear.cpp",
],
static_libs: [
"libfec",
diff --git a/fs_mgr/fs_mgr.cpp b/fs_mgr/fs_mgr.cpp
index e9040df..6e9ffba 100644
--- a/fs_mgr/fs_mgr.cpp
+++ b/fs_mgr/fs_mgr.cpp
@@ -794,6 +794,29 @@
return true;
}
+bool fs_mgr_update_logical_partition(struct fstab_rec* rec) {
+ // Logical partitions are specified with a named partition rather than a
+ // block device, so if the block device is a path, then it has already
+ // been updated.
+ if (rec->blk_device[0] == '/') {
+ return true;
+ }
+
+ android::base::unique_fd dm_fd(open("/dev/device-mapper", O_RDONLY));
+ if (dm_fd < 0) {
+ PLOG(ERROR) << "open /dev/device-mapper failed";
+ return false;
+ }
+ struct dm_ioctl io;
+ std::string device_name;
+ if (!fs_mgr_dm_get_device_name(&io, rec->blk_device, dm_fd, &device_name)) {
+ return false;
+ }
+ free(rec->blk_device);
+ rec->blk_device = strdup(device_name.c_str());
+ return true;
+}
+
/* When multiple fstab records share the same mount_point, it will
* try to mount each one in turn, and ignore any duplicates after a
* first successful mount.
@@ -845,6 +868,13 @@
}
}
+ if ((fstab->recs[i].fs_mgr_flags & MF_LOGICAL)) {
+ if (!fs_mgr_update_logical_partition(&fstab->recs[i])) {
+ LERROR << "Could not set up logical partition, skipping!";
+ continue;
+ }
+ }
+
if (fstab->recs[i].fs_mgr_flags & MF_WAIT &&
!fs_mgr_wait_for_file(fstab->recs[i].blk_device, 20s)) {
LERROR << "Skipping '" << fstab->recs[i].blk_device << "' during mount_all";
@@ -1065,6 +1095,13 @@
return FS_MGR_DOMNT_FAILED;
}
+ if ((fstab->recs[i].fs_mgr_flags & MF_LOGICAL)) {
+ if (!fs_mgr_update_logical_partition(&fstab->recs[i])) {
+ LERROR << "Could not set up logical partition, skipping!";
+ continue;
+ }
+ }
+
/* First check the filesystem if requested */
if (fstab->recs[i].fs_mgr_flags & MF_WAIT && !fs_mgr_wait_for_file(n_blk_device, 20s)) {
LERROR << "Skipping mounting '" << n_blk_device << "'";
diff --git a/fs_mgr/fs_mgr_avb.cpp b/fs_mgr/fs_mgr_avb.cpp
index cf6b497..5a9cb65 100644
--- a/fs_mgr/fs_mgr_avb.cpp
+++ b/fs_mgr/fs_mgr_avb.cpp
@@ -585,7 +585,13 @@
// Derives partition_name from blk_device to query the corresponding AVB HASHTREE descriptor
// to setup dm-verity. The partition_names in AVB descriptors are without A/B suffix.
- std::string partition_name(basename(fstab_entry->blk_device));
+ std::string partition_name;
+ if (fstab_entry->fs_mgr_flags & MF_LOGICAL) {
+ partition_name = fstab_entry->logical_partition_name;
+ } else {
+ partition_name = basename(fstab_entry->blk_device);
+ }
+
if (fstab_entry->fs_mgr_flags & MF_SLOTSELECT) {
auto ab_suffix = partition_name.rfind(fs_mgr_get_slot_suffix());
if (ab_suffix != std::string::npos) {
diff --git a/fs_mgr/fs_mgr_dm_linear.cpp b/fs_mgr/fs_mgr_dm_linear.cpp
new file mode 100644
index 0000000..b2f3a68
--- /dev/null
+++ b/fs_mgr/fs_mgr_dm_linear.cpp
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "fs_mgr_dm_linear.h"
+
+#include <inttypes.h>
+#include <linux/dm-ioctl.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <sstream>
+
+#include <android-base/logging.h>
+#include <android-base/stringprintf.h>
+#include <android-base/strings.h>
+#include <android-base/unique_fd.h>
+
+#include "fs_mgr_priv.h"
+#include "fs_mgr_priv_dm_ioctl.h"
+
+namespace android {
+namespace fs_mgr {
+
+std::string LogicalPartitionExtent::Serialize() const {
+ // Note: we need to include an explicit null-terminator.
+ std::string argv =
+ android::base::StringPrintf("%s %" PRIu64, block_device_.c_str(), first_sector_);
+ argv.push_back(0);
+
+ // The kernel expects each target to be aligned.
+ size_t spec_bytes = sizeof(struct dm_target_spec) + argv.size();
+ size_t padding = ((spec_bytes + 7) & ~7) - spec_bytes;
+ for (size_t i = 0; i < padding; i++) {
+ argv.push_back(0);
+ }
+
+ struct dm_target_spec spec;
+ spec.sector_start = logical_sector_;
+ spec.length = num_sectors_;
+ spec.status = 0;
+ strcpy(spec.target_type, "linear");
+ spec.next = sizeof(struct dm_target_spec) + argv.size();
+
+ return std::string((char*)&spec, sizeof(spec)) + argv;
+}
+
+static bool LoadDmTable(int dm_fd, const LogicalPartition& partition) {
+ // Combine all dm_target_spec buffers together.
+ std::string target_string;
+ for (const auto& extent : partition.extents) {
+ target_string += extent.Serialize();
+ }
+
+ // Allocate the ioctl buffer.
+ size_t buffer_size = sizeof(struct dm_ioctl) + target_string.size();
+ std::unique_ptr<uint8_t[]> buffer = std::make_unique<uint8_t[]>(buffer_size);
+
+ // Initialize the ioctl buffer header, then copy our target specs in.
+ struct dm_ioctl* io = reinterpret_cast<struct dm_ioctl*>(buffer.get());
+ fs_mgr_dm_ioctl_init(io, buffer_size, partition.name);
+ io->target_count = partition.extents.size();
+ if (partition.attributes & kPartitionReadonly) {
+ io->flags |= DM_READONLY_FLAG;
+ }
+ memcpy(io + 1, target_string.c_str(), target_string.size());
+
+ if (ioctl(dm_fd, DM_TABLE_LOAD, io)) {
+ PERROR << "Failed ioctl() on DM_TABLE_LOAD, partition " << partition.name;
+ return false;
+ }
+ return true;
+}
+
+static bool LoadTablesAndActivate(int dm_fd, const LogicalPartition& partition) {
+ if (!LoadDmTable(dm_fd, partition)) {
+ return false;
+ }
+
+ struct dm_ioctl io;
+ return fs_mgr_dm_resume_table(&io, partition.name, dm_fd);
+}
+
+static bool CreateDmDeviceForPartition(int dm_fd, const LogicalPartition& partition) {
+ struct dm_ioctl io;
+ if (!fs_mgr_dm_create_device(&io, partition.name, dm_fd)) {
+ return false;
+ }
+ if (!LoadTablesAndActivate(dm_fd, partition)) {
+ // Remove the device rather than leave it in an inactive state.
+ fs_mgr_dm_destroy_device(&io, partition.name, dm_fd);
+ return false;
+ }
+
+ LINFO << "Created device-mapper device: " << partition.name;
+ return true;
+}
+
+bool CreateLogicalPartitions(const LogicalPartitionTable& table) {
+ android::base::unique_fd dm_fd(open("/dev/device-mapper", O_RDWR));
+ if (dm_fd < 0) {
+ PLOG(ERROR) << "failed to open /dev/device-mapper";
+ return false;
+ }
+ for (const auto& partition : table.partitions) {
+ if (!CreateDmDeviceForPartition(dm_fd, partition)) {
+ LOG(ERROR) << "could not create dm-linear device for partition: " << partition.name;
+ return false;
+ }
+ }
+ return true;
+}
+
+std::unique_ptr<LogicalPartitionTable> LoadPartitionsFromDeviceTree() {
+ return nullptr;
+}
+
+} // namespace fs_mgr
+} // namespace android
diff --git a/fs_mgr/fs_mgr_fstab.cpp b/fs_mgr/fs_mgr_fstab.cpp
index 3fbef9f..af4d6c1 100644
--- a/fs_mgr/fs_mgr_fstab.cpp
+++ b/fs_mgr/fs_mgr_fstab.cpp
@@ -109,6 +109,7 @@
{"logicalblk=", MF_LOGICALBLKSIZE},
{"sysfs_path=", MF_SYSFS},
{"defaults", 0},
+ {"logical", MF_LOGICAL},
{0, 0},
};
@@ -445,10 +446,6 @@
LERROR << "dt_fstab: Failed to find device for partition " << dp->d_name;
return {};
}
- if (!StartsWith(value, "/dev")) {
- LERROR << "dt_fstab: Invalid device node for partition " << dp->d_name;
- return {};
- }
fstab_entry.push_back(value);
std::string mount_point;
@@ -631,6 +628,10 @@
fstab->recs[cnt].erase_blk_size = flag_vals.erase_blk_size;
fstab->recs[cnt].logical_blk_size = flag_vals.logical_blk_size;
fstab->recs[cnt].sysfs_path = flag_vals.sysfs_path;
+ if (fstab->recs[cnt].fs_mgr_flags & MF_LOGICAL) {
+ fstab->recs[cnt].logical_partition_name = strdup(fstab->recs[cnt].blk_device);
+ }
+
cnt++;
}
/* If an A/B partition, modify block device to be the real block device */
@@ -685,6 +686,49 @@
return a;
}
+/* Extracts <device>s from the by-name symlinks specified in a fstab:
+ * /dev/block/<type>/<device>/by-name/<partition>
+ *
+ * <type> can be: platform, pci or vbd.
+ *
+ * For example, given the following entries in the input fstab:
+ * /dev/block/platform/soc/1da4000.ufshc/by-name/system
+ * /dev/block/pci/soc.0/f9824900.sdhci/by-name/vendor
+ * it returns a set { "soc/1da4000.ufshc", "soc.0/f9824900.sdhci" }.
+ */
+static std::set<std::string> extract_boot_devices(const fstab& fstab) {
+ std::set<std::string> boot_devices;
+
+ for (int i = 0; i < fstab.num_entries; i++) {
+ std::string blk_device(fstab.recs[i].blk_device);
+ // Skips blk_device that doesn't conform to the format.
+ if (!android::base::StartsWith(blk_device, "/dev/block") ||
+ android::base::StartsWith(blk_device, "/dev/block/by-name") ||
+ android::base::StartsWith(blk_device, "/dev/block/bootdevice/by-name")) {
+ continue;
+ }
+ // Skips non-by_name blk_device.
+ // /dev/block/<type>/<device>/by-name/<partition>
+ // ^ slash_by_name
+ auto slash_by_name = blk_device.find("/by-name");
+ if (slash_by_name == std::string::npos) continue;
+ blk_device.erase(slash_by_name); // erases /by-name/<partition>
+
+ // Erases /dev/block/, now we have <type>/<device>
+ blk_device.erase(0, std::string("/dev/block/").size());
+
+ // <type>/<device>
+ // ^ first_slash
+ auto first_slash = blk_device.find('/');
+ if (first_slash == std::string::npos) continue;
+
+ auto boot_device = blk_device.substr(first_slash + 1);
+ if (!boot_device.empty()) boot_devices.insert(std::move(boot_device));
+ }
+
+ return boot_devices;
+}
+
struct fstab *fs_mgr_read_fstab(const char *fstab_path)
{
FILE *fstab_file;
@@ -797,6 +841,7 @@
for (i = 0; i < fstab->num_entries; i++) {
/* Free the pointers return by strdup(3) */
free(fstab->recs[i].blk_device);
+ free(fstab->recs[i].logical_partition_name);
free(fstab->recs[i].mount_point);
free(fstab->recs[i].fs_type);
free(fstab->recs[i].fs_options);
@@ -861,6 +906,23 @@
return nullptr;
}
+std::set<std::string> fs_mgr_get_boot_devices() {
+ // boot_devices can be specified in device tree.
+ std::string dt_value;
+ std::string file_name = get_android_dt_dir() + "/boot_devices";
+ if (read_dt_file(file_name, &dt_value)) {
+ auto boot_devices = android::base::Split(dt_value, ",");
+ return std::set<std::string>(boot_devices.begin(), boot_devices.end());
+ }
+
+ // Fallback to extract boot devices from fstab.
+ std::unique_ptr<fstab, decltype(&fs_mgr_free_fstab)> fstab(fs_mgr_read_fstab_default(),
+ fs_mgr_free_fstab);
+ if (fstab) return extract_boot_devices(*fstab);
+
+ return {};
+}
+
int fs_mgr_is_voldmanaged(const struct fstab_rec *fstab)
{
return fstab->fs_mgr_flags & MF_VOLDMANAGED;
@@ -944,3 +1006,7 @@
{
return fstab->fs_mgr_flags & MF_SYSFS;
}
+
+int fs_mgr_is_logical(const struct fstab_rec* fstab) {
+ return fstab->fs_mgr_flags & MF_LOGICAL;
+}
diff --git a/fs_mgr/fs_mgr_priv.h b/fs_mgr/fs_mgr_priv.h
index ade0cc4..afd7227 100644
--- a/fs_mgr/fs_mgr_priv.h
+++ b/fs_mgr/fs_mgr_priv.h
@@ -82,6 +82,7 @@
*
*/
+// clang-format off
#define MF_WAIT 0x1
#define MF_CHECK 0x2
#define MF_CRYPT 0x4
@@ -111,6 +112,8 @@
#define MF_AVB 0X2000000
#define MF_KEYDIRECTORY 0X4000000
#define MF_SYSFS 0X8000000
+#define MF_LOGICAL 0x10000000
+// clang-format on
#define DM_BUF_SIZE 4096
diff --git a/fs_mgr/fs_mgr_slotselect.cpp b/fs_mgr/fs_mgr_slotselect.cpp
index 0a113b4..3b01d0e 100644
--- a/fs_mgr/fs_mgr_slotselect.cpp
+++ b/fs_mgr/fs_mgr_slotselect.cpp
@@ -36,19 +36,30 @@
std::string ab_suffix;
for (n = 0; n < fstab->num_entries; n++) {
- if (fstab->recs[n].fs_mgr_flags & MF_SLOTSELECT) {
- char *tmp;
+ fstab_rec& record = fstab->recs[n];
+ if (record.fs_mgr_flags & MF_SLOTSELECT) {
if (ab_suffix.empty()) {
ab_suffix = fs_mgr_get_slot_suffix();
// Return false if failed to get ab_suffix when MF_SLOTSELECT is specified.
if (ab_suffix.empty()) return false;
}
- if (asprintf(&tmp, "%s%s", fstab->recs[n].blk_device, ab_suffix.c_str()) > 0) {
- free(fstab->recs[n].blk_device);
- fstab->recs[n].blk_device = tmp;
- } else {
+
+ char* new_blk_device;
+ if (asprintf(&new_blk_device, "%s%s", record.blk_device, ab_suffix.c_str()) <= 0) {
return false;
}
+ free(record.blk_device);
+ record.blk_device = new_blk_device;
+
+ char* new_partition_name;
+ if (record.logical_partition_name) {
+ if (asprintf(&new_partition_name, "%s%s", record.logical_partition_name,
+ ab_suffix.c_str()) <= 0) {
+ return false;
+ }
+ free(record.logical_partition_name);
+ record.logical_partition_name = new_partition_name;
+ }
}
}
return true;
diff --git a/fs_mgr/include/fs_mgr.h b/fs_mgr/include/fs_mgr.h
index 653d8fa..72f019e 100644
--- a/fs_mgr/include/fs_mgr.h
+++ b/fs_mgr/include/fs_mgr.h
@@ -76,6 +76,7 @@
bool fs_mgr_load_verity_state(int* mode);
bool fs_mgr_update_verity_state(fs_mgr_verity_state_callback callback);
int fs_mgr_swapon_all(struct fstab *fstab);
+bool fs_mgr_update_logical_partition(struct fstab_rec* rec);
int fs_mgr_do_format(struct fstab_rec *fstab, bool reserve_footer);
diff --git a/fs_mgr/include/fs_mgr_dm_linear.h b/fs_mgr/include/fs_mgr_dm_linear.h
new file mode 100644
index 0000000..7f928e5
--- /dev/null
+++ b/fs_mgr/include/fs_mgr_dm_linear.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __CORE_FS_MGR_DM_LINEAR_H
+#define __CORE_FS_MGR_DM_LINEAR_H
+
+#include <stdint.h>
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace android {
+namespace fs_mgr {
+
+static const uint32_t kPartitionReadonly = 0x1;
+
+class LogicalPartitionExtent {
+ public:
+ LogicalPartitionExtent() : logical_sector_(0), first_sector_(0), num_sectors_(0) {}
+ LogicalPartitionExtent(uint64_t logical_sector, uint64_t first_sector, uint64_t num_sectors,
+ const std::string& block_device)
+ : logical_sector_(logical_sector),
+ first_sector_(first_sector),
+ num_sectors_(num_sectors),
+ block_device_(block_device) {}
+
+ // Return a string containing the dm_target_spec buffer needed to use this
+ // extent in a device-mapper table.
+ std::string Serialize() const;
+
+ const std::string& block_device() const { return block_device_; }
+
+ private:
+ // Logical sector this extent represents in the presented block device.
+ // This is equal to the previous extent's logical sector plus the number
+ // of sectors in that extent. The first extent always starts at 0.
+ uint64_t logical_sector_;
+ // First 512-byte sector of this extent, on the source block device.
+ uint64_t first_sector_;
+ // Number of 512-byte sectors.
+ uint64_t num_sectors_;
+ // Target block device.
+ std::string block_device_;
+};
+
+struct LogicalPartition {
+ LogicalPartition() : attributes(0), num_sectors(0) {}
+
+ std::string name;
+ uint32_t attributes;
+ // Number of 512-byte sectors total.
+ uint64_t num_sectors;
+ // List of extents.
+ std::vector<LogicalPartitionExtent> extents;
+};
+
+struct LogicalPartitionTable {
+ // List of partitions in the partition table.
+ std::vector<LogicalPartition> partitions;
+};
+
+// Load a dm-linear table from the device tree if one is available; otherwise,
+// return null.
+std::unique_ptr<LogicalPartitionTable> LoadPartitionsFromDeviceTree();
+
+// Create device-mapper devices for the given partition table.
+//
+// On success, two devices nodes will be created for each partition, both
+// pointing to the same device:
+// /dev/block/dm-<N> where N is a sequential ID assigned by device-mapper.
+// /dev/block/dm-<name> where |name| is the partition name.
+//
+bool CreateLogicalPartitions(const LogicalPartitionTable& table);
+
+} // namespace fs_mgr
+} // namespace android
+
+#endif // __CORE_FS_MGR_DM_LINEAR_H
diff --git a/fs_mgr/include_fstab/fstab/fstab.h b/fs_mgr/include_fstab/fstab/fstab.h
index 8c585dd..d232cca 100644
--- a/fs_mgr/include_fstab/fstab/fstab.h
+++ b/fs_mgr/include_fstab/fstab/fstab.h
@@ -22,6 +22,7 @@
#include <stdint.h>
#include <stdio.h>
+#include <set>
#include <string>
/*
@@ -37,6 +38,7 @@
struct fstab_rec {
char* blk_device;
+ char* logical_partition_name;
char* mount_point;
char* fs_type;
unsigned long flags;
@@ -84,8 +86,10 @@
int fs_mgr_is_nofail(const struct fstab_rec* fstab);
int fs_mgr_is_latemount(const struct fstab_rec* fstab);
int fs_mgr_is_quota(const struct fstab_rec* fstab);
+int fs_mgr_is_logical(const struct fstab_rec* fstab);
int fs_mgr_has_sysfs_path(const struct fstab_rec* fstab);
std::string fs_mgr_get_slot_suffix();
+std::set<std::string> fs_mgr_get_boot_devices();
#endif /* __CORE_FS_TAB_H */
diff --git a/init/README.md b/init/README.md
index c08b07a..550ef05 100644
--- a/init/README.md
+++ b/init/README.md
@@ -195,6 +195,10 @@
> This service will not automatically start with its class.
It must be explicitly started by name or by interface name.
+`enter_namespace <type> <path>`
+> Enters the namespace of type _type_ located at _path_. Only network namespaces are supported with
+ _type_ set to "net". Note that only one namespace of a given _type_ may be entered.
+
`file <path> <type>`
> Open a file path and pass its fd to the launched process. _type_ must be
"r", "w" or "rw". For native executables see libcutils
diff --git a/init/devices.cpp b/init/devices.cpp
index 8d27f4f..ada1e28 100644
--- a/init/devices.cpp
+++ b/init/devices.cpp
@@ -329,10 +329,10 @@
<< partition_name_sanitized << "'";
}
links.emplace_back(link_path + "/by-name/" + partition_name_sanitized);
- }
-
- if (uevent.partition_num >= 0) {
- links.emplace_back(link_path + "/by-num/p" + std::to_string(uevent.partition_num));
+ // Adds symlink: /dev/block/by-name/<partition_name>.
+ if (boot_devices_.find(device) != boot_devices_.end()) {
+ links.emplace_back("/dev/block/by-name/" + partition_name_sanitized);
+ }
}
auto last_slash = uevent.path.rfind('/');
@@ -350,8 +350,14 @@
PLOG(ERROR) << "Failed to create directory " << Dirname(link);
}
- if (symlink(devpath.c_str(), link.c_str()) && errno != EEXIST) {
- PLOG(ERROR) << "Failed to symlink " << devpath << " to " << link;
+ if (symlink(devpath.c_str(), link.c_str())) {
+ if (errno != EEXIST) {
+ PLOG(ERROR) << "Failed to symlink " << devpath << " to " << link;
+ } else if (std::string link_path;
+ Readlink(link, &link_path) && link_path != devpath) {
+ PLOG(ERROR) << "Failed to symlink " << devpath << " to " << link
+ << ", which already links to: " << link_path;
+ }
}
}
}
@@ -415,16 +421,18 @@
DeviceHandler::DeviceHandler(std::vector<Permissions> dev_permissions,
std::vector<SysfsPermissions> sysfs_permissions,
- std::vector<Subsystem> subsystems, bool skip_restorecon)
+ std::vector<Subsystem> subsystems, std::set<std::string> boot_devices,
+ bool skip_restorecon)
: dev_permissions_(std::move(dev_permissions)),
sysfs_permissions_(std::move(sysfs_permissions)),
subsystems_(std::move(subsystems)),
+ boot_devices_(std::move(boot_devices)),
skip_restorecon_(skip_restorecon),
sysfs_mount_point_("/sys") {}
DeviceHandler::DeviceHandler()
: DeviceHandler(std::vector<Permissions>{}, std::vector<SysfsPermissions>{},
- std::vector<Subsystem>{}, false) {}
+ std::vector<Subsystem>{}, std::set<std::string>{}, false) {}
} // namespace init
} // namespace android
diff --git a/init/devices.h b/init/devices.h
index 1f8f1e8..f9035da 100644
--- a/init/devices.h
+++ b/init/devices.h
@@ -21,6 +21,7 @@
#include <sys/types.h>
#include <algorithm>
+#include <set>
#include <string>
#include <vector>
@@ -103,8 +104,8 @@
DeviceHandler();
DeviceHandler(std::vector<Permissions> dev_permissions,
- std::vector<SysfsPermissions> sysfs_permissions,
- std::vector<Subsystem> subsystems, bool skip_restorecon);
+ std::vector<SysfsPermissions> sysfs_permissions, std::vector<Subsystem> subsystems,
+ std::set<std::string> boot_devices, bool skip_restorecon);
~DeviceHandler(){};
void HandleDeviceEvent(const Uevent& uevent);
@@ -125,6 +126,7 @@
std::vector<Permissions> dev_permissions_;
std::vector<SysfsPermissions> sysfs_permissions_;
std::vector<Subsystem> subsystems_;
+ std::set<std::string> boot_devices_;
bool skip_restorecon_;
std::string sysfs_mount_point_;
};
diff --git a/init/devices_test.cpp b/init/devices_test.cpp
index eba00cb..d658f4d 100644
--- a/init/devices_test.cpp
+++ b/init/devices_test.cpp
@@ -84,7 +84,6 @@
};
std::vector<std::string> expected_result{
"/dev/block/platform/soc.0/f9824900.sdhci/by-name/modem",
- "/dev/block/platform/soc.0/f9824900.sdhci/by-num/p1",
"/dev/block/platform/soc.0/f9824900.sdhci/mmcblk0p1",
};
@@ -100,7 +99,6 @@
.partition_num = 1,
};
std::vector<std::string> expected_result{
- "/dev/block/platform/soc.0/f9824900.sdhci/by-num/p1",
"/dev/block/platform/soc.0/f9824900.sdhci/mmcblk0p1",
};
diff --git a/init/init_first_stage.cpp b/init/init_first_stage.cpp
index 1b6e97e..34de640 100644
--- a/init/init_first_stage.cpp
+++ b/init/init_first_stage.cpp
@@ -33,11 +33,13 @@
#include "devices.h"
#include "fs_mgr.h"
#include "fs_mgr_avb.h"
+#include "fs_mgr_dm_linear.h"
#include "uevent.h"
#include "uevent_listener.h"
#include "util.h"
using android::base::Timer;
+using android::fs_mgr::LogicalPartitionTable;
namespace android {
namespace init {
@@ -58,21 +60,24 @@
protected:
ListenerAction HandleBlockDevice(const std::string& name, const Uevent&);
bool InitRequiredDevices();
- bool InitVerityDevice(const std::string& verity_device);
+ bool InitMappedDevice(const std::string& verity_device);
+ bool CreateLogicalPartitions();
bool MountPartitions();
+ bool GetBackingDmLinearDevices();
virtual ListenerAction UeventCallback(const Uevent& uevent);
// Pure virtual functions.
- virtual bool GetRequiredDevices() = 0;
+ virtual bool GetDmVerityDevices() = 0;
virtual bool SetUpDmVerity(fstab_rec* fstab_rec) = 0;
bool need_dm_verity_;
std::unique_ptr<fstab, decltype(&fs_mgr_free_fstab)> device_tree_fstab_;
+ std::unique_ptr<LogicalPartitionTable> dm_linear_table_;
std::vector<fstab_rec*> mount_fstab_recs_;
std::set<std::string> required_devices_partition_names_;
- DeviceHandler device_handler_;
+ std::unique_ptr<DeviceHandler> device_handler_;
UeventListener uevent_listener_;
};
@@ -82,7 +87,7 @@
~FirstStageMountVBootV1() override = default;
protected:
- bool GetRequiredDevices() override;
+ bool GetDmVerityDevices() override;
bool SetUpDmVerity(fstab_rec* fstab_rec) override;
};
@@ -95,7 +100,7 @@
protected:
ListenerAction UeventCallback(const Uevent& uevent) override;
- bool GetRequiredDevices() override;
+ bool GetDmVerityDevices() override;
bool SetUpDmVerity(fstab_rec* fstab_rec) override;
bool InitAvbHandle();
@@ -114,6 +119,17 @@
return access("/sbin/recovery", F_OK) == 0;
}
+static inline bool IsDmLinearEnabled() {
+ bool enabled = false;
+ import_kernel_cmdline(
+ false, [&enabled](const std::string& key, const std::string& value, bool in_qemu) {
+ if (key == "androidboot.lrap" && value == "1") {
+ enabled = true;
+ }
+ });
+ return enabled;
+}
+
// Class Definitions
// -----------------
FirstStageMount::FirstStageMount()
@@ -127,6 +143,15 @@
} else {
LOG(INFO) << "Failed to read fstab from device tree";
}
+
+ if (IsDmLinearEnabled()) {
+ dm_linear_table_ = android::fs_mgr::LoadPartitionsFromDeviceTree();
+ }
+
+ auto boot_devices = fs_mgr_get_boot_devices();
+ device_handler_ =
+ std::make_unique<DeviceHandler>(std::vector<Permissions>{}, std::vector<SysfsPermissions>{},
+ std::vector<Subsystem>{}, std::move(boot_devices), false);
}
std::unique_ptr<FirstStageMount> FirstStageMount::Create() {
@@ -138,7 +163,7 @@
}
bool FirstStageMount::DoFirstStageMount() {
- if (mount_fstab_recs_.empty()) {
+ if (!dm_linear_table_ && mount_fstab_recs_.empty()) {
// Nothing to mount.
LOG(INFO) << "First stage mount skipped (missing/incompatible/empty fstab in device tree)";
return true;
@@ -146,13 +171,30 @@
if (!InitDevices()) return false;
+ if (!CreateLogicalPartitions()) return false;
+
if (!MountPartitions()) return false;
return true;
}
bool FirstStageMount::InitDevices() {
- return GetRequiredDevices() && InitRequiredDevices();
+ return GetBackingDmLinearDevices() && GetDmVerityDevices() && InitRequiredDevices();
+}
+
+bool FirstStageMount::GetBackingDmLinearDevices() {
+ // Add any additional devices required for dm-linear mappings.
+ if (!dm_linear_table_) {
+ return true;
+ }
+
+ for (const auto& partition : dm_linear_table_->partitions) {
+ for (const auto& extent : partition.extents) {
+ const std::string& partition_name = android::base::Basename(extent.block_device());
+ required_devices_partition_names_.emplace(partition_name);
+ }
+ }
+ return true;
}
// Creates devices with uevent->partition_name matching one in the member variable
@@ -163,12 +205,12 @@
return true;
}
- if (need_dm_verity_) {
+ if (dm_linear_table_ || need_dm_verity_) {
const std::string dm_path = "/devices/virtual/misc/device-mapper";
bool found = false;
auto dm_callback = [this, &dm_path, &found](const Uevent& uevent) {
if (uevent.path == dm_path) {
- device_handler_.HandleDeviceEvent(uevent);
+ device_handler_->HandleDeviceEvent(uevent);
found = true;
return ListenerAction::kStop;
}
@@ -210,6 +252,13 @@
return true;
}
+bool FirstStageMount::CreateLogicalPartitions() {
+ if (!dm_linear_table_) {
+ return true;
+ }
+ return android::fs_mgr::CreateLogicalPartitions(*dm_linear_table_.get());
+}
+
ListenerAction FirstStageMount::HandleBlockDevice(const std::string& name, const Uevent& uevent) {
// Matches partition name to create device nodes.
// Both required_devices_partition_names_ and uevent->partition_name have A/B
@@ -218,7 +267,7 @@
if (iter != required_devices_partition_names_.end()) {
LOG(VERBOSE) << __PRETTY_FUNCTION__ << ": found partition: " << *iter;
required_devices_partition_names_.erase(iter);
- device_handler_.HandleDeviceEvent(uevent);
+ device_handler_->HandleDeviceEvent(uevent);
if (required_devices_partition_names_.empty()) {
return ListenerAction::kStop;
} else {
@@ -247,15 +296,15 @@
}
// Creates "/dev/block/dm-XX" for dm-verity by running coldboot on /sys/block/dm-XX.
-bool FirstStageMount::InitVerityDevice(const std::string& verity_device) {
- const std::string device_name(basename(verity_device.c_str()));
+bool FirstStageMount::InitMappedDevice(const std::string& dm_device) {
+ const std::string device_name(basename(dm_device.c_str()));
const std::string syspath = "/sys/block/" + device_name;
bool found = false;
- auto verity_callback = [&device_name, &verity_device, this, &found](const Uevent& uevent) {
+ auto verity_callback = [&device_name, &dm_device, this, &found](const Uevent& uevent) {
if (uevent.device_name == device_name) {
- LOG(VERBOSE) << "Creating dm-verity device : " << verity_device;
- device_handler_.HandleDeviceEvent(uevent);
+ LOG(VERBOSE) << "Creating device-mapper device : " << dm_device;
+ device_handler_->HandleDeviceEvent(uevent);
found = true;
return ListenerAction::kStop;
}
@@ -279,6 +328,14 @@
bool FirstStageMount::MountPartitions() {
for (auto fstab_rec : mount_fstab_recs_) {
+ if (fs_mgr_is_logical(fstab_rec)) {
+ if (!fs_mgr_update_logical_partition(fstab_rec)) {
+ return false;
+ }
+ if (!InitMappedDevice(fstab_rec->blk_device)) {
+ return false;
+ }
+ }
if (!SetUpDmVerity(fstab_rec)) {
PLOG(ERROR) << "Failed to setup verity for '" << fstab_rec->mount_point << "'";
return false;
@@ -291,7 +348,7 @@
return true;
}
-bool FirstStageMountVBootV1::GetRequiredDevices() {
+bool FirstStageMountVBootV1::GetDmVerityDevices() {
std::string verity_loc_device;
need_dm_verity_ = false;
@@ -344,7 +401,7 @@
// The exact block device name (fstab_rec->blk_device) is changed to
// "/dev/block/dm-XX". Needs to create it because ueventd isn't started in init
// first stage.
- return InitVerityDevice(fstab_rec->blk_device);
+ return InitMappedDevice(fstab_rec->blk_device);
default:
return false;
}
@@ -371,7 +428,7 @@
}
}
-bool FirstStageMountVBootV2::GetRequiredDevices() {
+bool FirstStageMountVBootV2::GetDmVerityDevices() {
need_dm_verity_ = false;
// fstab_rec->blk_device has A/B suffix.
@@ -416,9 +473,8 @@
// the content of uevent. by-name symlink will be at [0] if uevent->partition_name
// is not empty. e.g.,
// - /dev/block/platform/soc.0/f9824900.sdhci/by-name/modem
- // - /dev/block/platform/soc.0/f9824900.sdhci/by-num/p1
// - /dev/block/platform/soc.0/f9824900.sdhci/mmcblk0p1
- std::vector<std::string> links = device_handler_.GetBlockDeviceSymlinks(uevent);
+ std::vector<std::string> links = device_handler_->GetBlockDeviceSymlinks(uevent);
if (!links.empty()) {
auto[it, inserted] = by_name_symlink_map_.emplace(uevent.partition_name, links[0]);
if (!inserted) {
@@ -444,7 +500,7 @@
// The exact block device name (fstab_rec->blk_device) is changed to
// "/dev/block/dm-XX". Needs to create it because ueventd isn't started in init
// first stage.
- return InitVerityDevice(fstab_rec->blk_device);
+ return InitMappedDevice(fstab_rec->blk_device);
default:
return false;
}
diff --git a/init/service.cpp b/init/service.cpp
index 03c2cee..0e08d9b 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -34,6 +34,7 @@
#include <android-base/parseint.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
+#include <android-base/unique_fd.h>
#include <hidl-util/FQName.h>
#include <processgroup/processgroup.h>
#include <selinux/selinux.h>
@@ -59,13 +60,13 @@
using android::base::ParseInt;
using android::base::StartsWith;
using android::base::StringPrintf;
+using android::base::unique_fd;
using android::base::WriteStringToFile;
namespace android {
namespace init {
-static Result<std::string> ComputeContextFromExecutable(std::string& service_name,
- const std::string& service_path) {
+static Result<std::string> ComputeContextFromExecutable(const std::string& service_path) {
std::string computed_context;
char* raw_con = nullptr;
@@ -101,36 +102,49 @@
return computed_context;
}
-static void SetUpPidNamespace(const std::string& service_name) {
+Result<Success> Service::SetUpMountNamespace() const {
constexpr unsigned int kSafeFlags = MS_NODEV | MS_NOEXEC | MS_NOSUID;
- // It's OK to LOG(FATAL) in this function since it's running in the first
- // child process.
-
// Recursively remount / as slave like zygote does so unmounting and mounting /proc
// doesn't interfere with the parent namespace's /proc mount. This will also
// prevent any other mounts/unmounts initiated by the service from interfering
// with the parent namespace but will still allow mount events from the parent
// namespace to propagate to the child.
if (mount("rootfs", "/", nullptr, (MS_SLAVE | MS_REC), nullptr) == -1) {
- PLOG(FATAL) << "couldn't remount(/) recursively as slave for " << service_name;
- }
- // umount() then mount() /proc.
- // Note that it is not sufficient to mount with MS_REMOUNT.
- if (umount("/proc") == -1) {
- PLOG(FATAL) << "couldn't umount(/proc) for " << service_name;
- }
- if (mount("", "/proc", "proc", kSafeFlags, "") == -1) {
- PLOG(FATAL) << "couldn't mount(/proc) for " << service_name;
+ return ErrnoError() << "Could not remount(/) recursively as slave";
}
- if (prctl(PR_SET_NAME, service_name.c_str()) == -1) {
- PLOG(FATAL) << "couldn't set name for " << service_name;
+ // umount() then mount() /proc and/or /sys
+ // Note that it is not sufficient to mount with MS_REMOUNT.
+ if (namespace_flags_ & CLONE_NEWPID) {
+ if (umount("/proc") == -1) {
+ return ErrnoError() << "Could not umount(/proc)";
+ }
+ if (mount("", "/proc", "proc", kSafeFlags, "") == -1) {
+ return ErrnoError() << "Could not mount(/proc)";
+ }
+ }
+ bool remount_sys = std::any_of(namespaces_to_enter_.begin(), namespaces_to_enter_.end(),
+ [](const auto& entry) { return entry.first == CLONE_NEWNET; });
+ if (remount_sys) {
+ if (umount2("/sys", MNT_DETACH) == -1) {
+ return ErrnoError() << "Could not umount(/sys)";
+ }
+ if (mount("", "/sys", "sys", kSafeFlags, "") == -1) {
+ return ErrnoError() << "Could not mount(/sys)";
+ }
+ }
+ return Success();
+}
+
+Result<Success> Service::SetUpPidNamespace() const {
+ if (prctl(PR_SET_NAME, name_.c_str()) == -1) {
+ return ErrnoError() << "Could not set name";
}
pid_t child_pid = fork();
if (child_pid == -1) {
- PLOG(FATAL) << "couldn't fork init inside the PID namespace for " << service_name;
+ return ErrnoError() << "Could not fork init inside the PID namespace";
}
if (child_pid > 0) {
@@ -153,6 +167,20 @@
}
_exit(WEXITSTATUS(init_exitstatus));
}
+ return Success();
+}
+
+Result<Success> Service::EnterNamespaces() const {
+ for (const auto& [nstype, path] : namespaces_to_enter_) {
+ auto fd = unique_fd{open(path.c_str(), O_RDONLY | O_CLOEXEC)};
+ if (!fd) {
+ return ErrnoError() << "Could not open namespace at " << path;
+ }
+ if (setns(fd, nstype) == -1) {
+ return ErrnoError() << "Could not setns() namespace at " << path;
+ }
+ }
+ return Success();
}
static bool ExpandArgsAndExecv(const std::vector<std::string>& args, bool sigstop) {
@@ -422,6 +450,20 @@
return Success();
}
+Result<Success> Service::ParseEnterNamespace(const std::vector<std::string>& args) {
+ if (args[1] != "net") {
+ return Error() << "Init only supports entering network namespaces";
+ }
+ if (!namespaces_to_enter_.empty()) {
+ return Error() << "Only one network namespace may be entered";
+ }
+ // Network namespaces require that /sys is remounted, otherwise the old adapters will still be
+ // present. Therefore, they also require mount namespaces.
+ namespace_flags_ |= CLONE_NEWNS;
+ namespaces_to_enter_.emplace_back(CLONE_NEWNET, args[2]);
+ return Success();
+}
+
Result<Success> Service::ParseGroup(const std::vector<std::string>& args) {
auto gid = DecodeUid(args[1]);
if (!gid) {
@@ -691,6 +733,8 @@
{"console", {0, 1, &Service::ParseConsole}},
{"critical", {0, 0, &Service::ParseCritical}},
{"disabled", {0, 0, &Service::ParseDisabled}},
+ {"enter_namespace",
+ {2, 2, &Service::ParseEnterNamespace}},
{"file", {2, 2, &Service::ParseFile}},
{"group", {1, NR_SVC_SUPP_GIDS + 1, &Service::ParseGroup}},
{"interface", {2, 2, &Service::ParseInterface}},
@@ -793,7 +837,7 @@
if (!seclabel_.empty()) {
scon = seclabel_;
} else {
- auto result = ComputeContextFromExecutable(name_, args_[0]);
+ auto result = ComputeContextFromExecutable(args_[0]);
if (!result) {
return result.error();
}
@@ -812,10 +856,24 @@
if (pid == 0) {
umask(077);
+ if (auto result = EnterNamespaces(); !result) {
+ LOG(FATAL) << "Service '" << name_ << "' could not enter namespaces: " << result.error();
+ }
+
+ if (namespace_flags_ & CLONE_NEWNS) {
+ if (auto result = SetUpMountNamespace(); !result) {
+ LOG(FATAL) << "Service '" << name_
+ << "' could not set up mount namespace: " << result.error();
+ }
+ }
+
if (namespace_flags_ & CLONE_NEWPID) {
// This will fork again to run an init process inside the PID
// namespace.
- SetUpPidNamespace(name_);
+ if (auto result = SetUpPidNamespace(); !result) {
+ LOG(FATAL) << "Service '" << name_
+ << "' could not set up PID namespace: " << result.error();
+ }
}
for (const auto& [key, value] : environment_vars_) {
diff --git a/init/service.h b/init/service.h
index 9cb35b8..cbfd52f 100644
--- a/init/service.h
+++ b/init/service.h
@@ -125,6 +125,9 @@
using OptionParser = Result<Success> (Service::*)(const std::vector<std::string>& args);
class OptionParserMap;
+ Result<Success> SetUpMountNamespace() const;
+ Result<Success> SetUpPidNamespace() const;
+ Result<Success> EnterNamespaces() const;
void NotifyStateChange(const std::string& new_state) const;
void StopOrReset(int how);
void ZapStdio() const;
@@ -137,6 +140,7 @@
Result<Success> ParseConsole(const std::vector<std::string>& args);
Result<Success> ParseCritical(const std::vector<std::string>& args);
Result<Success> ParseDisabled(const std::vector<std::string>& args);
+ Result<Success> ParseEnterNamespace(const std::vector<std::string>& args);
Result<Success> ParseGroup(const std::vector<std::string>& args);
Result<Success> ParsePriority(const std::vector<std::string>& args);
Result<Success> ParseInterface(const std::vector<std::string>& args);
@@ -181,6 +185,8 @@
std::vector<gid_t> supp_gids_;
CapSet capabilities_;
unsigned namespace_flags_;
+ // Pair of namespace type, path to namespace.
+ std::vector<std::pair<int, std::string>> namespaces_to_enter_;
std::string seclabel_;
diff --git a/init/ueventd.cpp b/init/ueventd.cpp
index 1435d82..a284203 100644
--- a/init/ueventd.cpp
+++ b/init/ueventd.cpp
@@ -30,6 +30,7 @@
#include <android-base/chrono_utils.h>
#include <android-base/logging.h>
#include <android-base/properties.h>
+#include <fstab/fstab.h>
#include <selinux/android.h>
#include <selinux/selinux.h>
@@ -242,8 +243,9 @@
std::string hardware = android::base::GetProperty("ro.hardware", "");
parser.ParseConfig("/ueventd." + hardware + ".rc");
+ auto boot_devices = fs_mgr_get_boot_devices();
return DeviceHandler(std::move(dev_permissions), std::move(sysfs_permissions),
- std::move(subsystems), true);
+ std::move(subsystems), std::move(boot_devices), true);
}
int ueventd_main(int argc, char** argv) {
diff --git a/libbacktrace/Android.bp b/libbacktrace/Android.bp
index 65145c2..0f93dd0 100644
--- a/libbacktrace/Android.bp
+++ b/libbacktrace/Android.bp
@@ -92,7 +92,10 @@
"libdexfile",
],
- static_libs: ["libcutils"],
+ static_libs: [
+ "libcutils",
+ "libprocinfo",
+ ],
// libdexfile will eventually properly export headers, for now
// include these directly.
diff --git a/libbacktrace/BacktraceMap.cpp b/libbacktrace/BacktraceMap.cpp
index bdae140..399721d 100644
--- a/libbacktrace/BacktraceMap.cpp
+++ b/libbacktrace/BacktraceMap.cpp
@@ -28,6 +28,9 @@
#include <backtrace/Backtrace.h>
#include <backtrace/BacktraceMap.h>
#include <backtrace/backtrace_constants.h>
+#if defined(__linux__)
+#include <procinfo/process_map.h>
+#endif
#include "thread_utils.h"
@@ -60,27 +63,19 @@
*map = {};
}
-bool BacktraceMap::ParseLine(const char* line, backtrace_map_t* map) {
+#if defined(__APPLE__)
+static bool ParseLine(const char* line, backtrace_map_t* map) {
uint64_t start;
uint64_t end;
char permissions[5];
int name_pos;
-#if defined(__APPLE__)
// Mac OS vmmap(1) output:
// __TEXT 0009f000-000a1000 [ 8K 8K] r-x/rwx SM=COW /Volumes/android/dalvik-dev/out/host/darwin-x86/bin/libcorkscrew_test\n
// 012345678901234567890123456789012345678901234567890123456789
// 0 1 2 3 4 5
if (sscanf(line, "%*21c %" SCNx64 "-%" SCNx64 " [%*13c] %3c/%*3c SM=%*3c %n",
&start, &end, permissions, &name_pos) != 3) {
-#else
-// Linux /proc/<pid>/maps lines:
-// 6f000000-6f01e000 rwxp 00000000 00:0c 16389419 /system/lib/libcomposer.so\n
-// 012345678901234567890123456789012345678901234567890123456789
-// 0 1 2 3 4 5
- if (sscanf(line, "%" SCNx64 "-%" SCNx64 " %4s %*x %*x:%*x %*d %n",
- &start, &end, permissions, &name_pos) != 3) {
-#endif
return false;
}
@@ -107,24 +102,15 @@
map->flags, map->name.c_str());
return true;
}
+#endif // defined(__APPLE__)
bool BacktraceMap::Build() {
#if defined(__APPLE__)
char cmd[sizeof(pid_t)*3 + sizeof("vmmap -w -resident -submap -allSplitLibs -interleaved ") + 1];
-#else
- char path[sizeof(pid_t)*3 + sizeof("/proc//maps") + 1];
-#endif
char line[1024];
-
-#if defined(__APPLE__)
// cmd is guaranteed to always be big enough to hold this string.
snprintf(cmd, sizeof(cmd), "vmmap -w -resident -submap -allSplitLibs -interleaved %d", pid_);
FILE* fp = popen(cmd, "r");
-#else
- // path is guaranteed to always be big enough to hold this string.
- snprintf(path, sizeof(path), "/proc/%d/maps", pid_);
- FILE* fp = fopen(path, "r");
-#endif
if (fp == nullptr) {
return false;
}
@@ -135,13 +121,19 @@
maps_.push_back(map);
}
}
-#if defined(__APPLE__)
pclose(fp);
-#else
- fclose(fp);
-#endif
-
return true;
+#else
+ return android::procinfo::ReadProcessMaps(
+ pid_, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t, const char* name) {
+ maps_.resize(maps_.size() + 1);
+ backtrace_map_t& map = maps_.back();
+ map.start = start;
+ map.end = end;
+ map.flags = flags;
+ map.name = name;
+ });
+#endif
}
#if defined(__APPLE__)
diff --git a/libbacktrace/include/backtrace/BacktraceMap.h b/libbacktrace/include/backtrace/BacktraceMap.h
index c94cad1..a9cfce4 100644
--- a/libbacktrace/include/backtrace/BacktraceMap.h
+++ b/libbacktrace/include/backtrace/BacktraceMap.h
@@ -169,8 +169,6 @@
virtual uint64_t GetLoadBias(size_t /* index */) { return 0; }
- virtual bool ParseLine(const char* line, backtrace_map_t* map);
-
pid_t pid_;
std::deque<backtrace_map_t> maps_;
std::vector<std::string> suffixes_to_ignore_;
diff --git a/libmemunreachable/Android.bp b/libmemunreachable/Android.bp
index f164a19..248a9d2 100644
--- a/libmemunreachable/Android.bp
+++ b/libmemunreachable/Android.bp
@@ -29,7 +29,6 @@
"HeapWalker.cpp",
"LeakFolding.cpp",
"LeakPipe.cpp",
- "LineBuffer.cpp",
"MemUnreachable.cpp",
"ProcessMappings.cpp",
"PtracerThread.cpp",
@@ -38,6 +37,7 @@
static_libs: [
"libc_malloc_debug_backtrace",
+ "libprocinfo",
],
// Only need this for arm since libc++ uses its own unwind code that
// doesn't mix with the other default unwind code.
diff --git a/libmemunreachable/LineBuffer.cpp b/libmemunreachable/LineBuffer.cpp
deleted file mode 100644
index 4ea0542..0000000
--- a/libmemunreachable/LineBuffer.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2015 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.
- */
-
-// Copied from system/extras/memory_replay/LineBuffer.cpp
-// TODO(ccross): find a way to share between libmemunreachable and memory_replay?
-
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "LineBuffer.h"
-
-namespace android {
-
-LineBuffer::LineBuffer(int fd, char* buffer, size_t buffer_len)
- : fd_(fd), buffer_(buffer), buffer_len_(buffer_len) {}
-
-bool LineBuffer::GetLine(char** line, size_t* line_len) {
- while (true) {
- if (bytes_ > 0) {
- char* newline = reinterpret_cast<char*>(memchr(buffer_ + start_, '\n', bytes_));
- if (newline != nullptr) {
- *newline = '\0';
- *line = buffer_ + start_;
- start_ = newline - buffer_ + 1;
- bytes_ -= newline - *line + 1;
- *line_len = newline - *line;
- return true;
- }
- }
- if (start_ > 0) {
- // Didn't find anything, copy the current to the front of the buffer.
- memmove(buffer_, buffer_ + start_, bytes_);
- start_ = 0;
- }
- ssize_t bytes = TEMP_FAILURE_RETRY(read(fd_, buffer_ + bytes_, buffer_len_ - bytes_ - 1));
- if (bytes <= 0) {
- if (bytes_ > 0) {
- // The read data might not contain a nul terminator, so add one.
- buffer_[bytes_] = '\0';
- *line = buffer_ + start_;
- *line_len = bytes_;
- bytes_ = 0;
- start_ = 0;
- return true;
- }
- return false;
- }
- bytes_ += bytes;
- }
-}
-
-} // namespace android
diff --git a/libmemunreachable/LineBuffer.h b/libmemunreachable/LineBuffer.h
deleted file mode 100644
index cc6cd0c..0000000
--- a/libmemunreachable/LineBuffer.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright (C) 2015 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.
- */
-
-#ifndef _LIBMEMUNREACHABLE_LINE_BUFFER_H
-#define _LIBMEMUNREACHABLE_LINE_BUFFER_H
-
-#include <stdint.h>
-
-namespace android {
-
-class LineBuffer {
- public:
- LineBuffer(int fd, char* buffer, size_t buffer_len);
-
- bool GetLine(char** line, size_t* line_len);
-
- private:
- int fd_;
- char* buffer_ = nullptr;
- size_t buffer_len_ = 0;
- size_t start_ = 0;
- size_t bytes_ = 0;
-};
-
-} // namespace android
-
-#endif // _LIBMEMUNREACHABLE_LINE_BUFFER_H
diff --git a/libmemunreachable/MemUnreachable.cpp b/libmemunreachable/MemUnreachable.cpp
index 24fdc7f..529a043 100644
--- a/libmemunreachable/MemUnreachable.cpp
+++ b/libmemunreachable/MemUnreachable.cpp
@@ -495,6 +495,21 @@
return oss.str();
}
+UnreachableMemoryInfo::~UnreachableMemoryInfo() {
+ // Clear the memory that holds the leaks, otherwise the next attempt to
+ // detect leaks may find the old data (for example in the jemalloc tcache)
+ // and consider all the leaks to be referenced.
+ memset(leaks.data(), 0, leaks.capacity() * sizeof(Leak));
+
+ std::vector<Leak> tmp;
+ leaks.swap(tmp);
+
+ // Disable and re-enable malloc to flush the jemalloc tcache to make sure
+ // there are no copies of the leaked pointer addresses there.
+ malloc_disable();
+ malloc_enable();
+}
+
std::string GetUnreachableMemoryString(bool log_contents, size_t limit) {
UnreachableMemoryInfo info;
if (!GetUnreachableMemory(info, limit)) {
diff --git a/libmemunreachable/ProcessMappings.cpp b/libmemunreachable/ProcessMappings.cpp
index 9a06870..701ce16 100644
--- a/libmemunreachable/ProcessMappings.cpp
+++ b/libmemunreachable/ProcessMappings.cpp
@@ -14,21 +14,30 @@
* limitations under the License.
*/
+#include <errno.h>
#include <fcntl.h>
#include <inttypes.h>
#include <string.h>
#include <unistd.h>
#include <android-base/unique_fd.h>
+#include <procinfo/process_map.h>
-#include "LineBuffer.h"
#include "ProcessMappings.h"
-#include "log.h"
namespace android {
-// This function is not re-entrant since it uses a static buffer for
-// the line data.
+struct ReadMapCallback {
+ ReadMapCallback(allocator::vector<Mapping>& mappings) : mappings_(mappings) {}
+
+ void operator()(uint64_t start, uint64_t end, uint16_t flags, uint64_t, const char* name) const {
+ mappings_.emplace_back(start, end, flags & PROT_READ, flags & PROT_WRITE, flags & PROT_EXEC,
+ name);
+ }
+
+ allocator::vector<Mapping>& mappings_;
+};
+
bool ProcessMappings(pid_t pid, allocator::vector<Mapping>& mappings) {
char map_buffer[1024];
snprintf(map_buffer, sizeof(map_buffer), "/proc/%d/maps", pid);
@@ -36,35 +45,13 @@
if (fd == -1) {
return false;
}
-
- LineBuffer line_buf(fd, map_buffer, sizeof(map_buffer));
- char* line;
- size_t line_len;
- while (line_buf.GetLine(&line, &line_len)) {
- int name_pos;
- char perms[5];
- Mapping mapping{};
- if (sscanf(line, "%" SCNxPTR "-%" SCNxPTR " %4s %*x %*x:%*x %*d %n", &mapping.begin,
- &mapping.end, perms, &name_pos) == 3) {
- if (perms[0] == 'r') {
- mapping.read = true;
- }
- if (perms[1] == 'w') {
- mapping.write = true;
- }
- if (perms[2] == 'x') {
- mapping.execute = true;
- }
- if (perms[3] == 'p') {
- mapping.priv = true;
- }
- if ((size_t)name_pos < line_len) {
- strlcpy(mapping.name, line + name_pos, sizeof(mapping.name));
- }
- mappings.emplace_back(mapping);
- }
+ allocator::string content(mappings.get_allocator());
+ ssize_t n;
+ while ((n = TEMP_FAILURE_RETRY(read(fd, map_buffer, sizeof(map_buffer)))) > 0) {
+ content.append(map_buffer, n);
}
- return true;
+ ReadMapCallback callback(mappings);
+ return android::procinfo::ReadMapFileContent(&content[0], callback);
}
} // namespace android
diff --git a/libmemunreachable/ProcessMappings.h b/libmemunreachable/ProcessMappings.h
index a0e97e9..94da69b 100644
--- a/libmemunreachable/ProcessMappings.h
+++ b/libmemunreachable/ProcessMappings.h
@@ -17,6 +17,8 @@
#ifndef LIBMEMUNREACHABLE_PROCESS_MAPPING_H_
#define LIBMEMUNREACHABLE_PROCESS_MAPPING_H_
+#include <string.h>
+
#include "Allocator.h"
namespace android {
@@ -27,8 +29,13 @@
bool read;
bool write;
bool execute;
- bool priv;
char name[96];
+
+ Mapping() {}
+ Mapping(uintptr_t begin, uintptr_t end, bool read, bool write, bool execute, const char* name)
+ : begin(begin), end(end), read(read), write(write), execute(execute) {
+ strlcpy(this->name, name, sizeof(this->name));
+ }
};
// This function is not re-entrant since it uses a static buffer for
diff --git a/libmemunreachable/README.md b/libmemunreachable/README.md
index ae8fa94..6d9141a 100644
--- a/libmemunreachable/README.md
+++ b/libmemunreachable/README.md
@@ -12,6 +12,27 @@
Usage
-------
+### In Android apps ###
+
+libmemunreachble is loaded by zygote and can be triggered with `dumpsys -t 600 meminfo --unreachable [process]`.
+
+To enable malloc\_debug backtraces on allocations for a single app process on a userdebug device, use:
+```
+adb root
+adb shell setprop libc.debug.malloc.program app_process
+adb shell setprop wrap.[process] "\$\@"
+adb shell setprop libc.debug.malloc.options backtrace=4
+```
+
+Kill and restart the app, trigger the leak, and then run `dumpsys -t 600 meminfo --unreachable [process]`.
+
+To disable malloc\_debug:
+```
+adb shell setprop libc.debug.malloc.options "''"
+adb shell setprop libc.debug.malloc.program "''"
+adb shell setprop wrap.[process] "''"
+```
+
### C interface ###
#### `bool LogUnreachableMemory(bool log_contents, size_t limit)` ####
diff --git a/libmemunreachable/include/memunreachable/memunreachable.h b/libmemunreachable/include/memunreachable/memunreachable.h
index 438fcaf..c028eab 100644
--- a/libmemunreachable/include/memunreachable/memunreachable.h
+++ b/libmemunreachable/include/memunreachable/memunreachable.h
@@ -62,12 +62,7 @@
size_t allocation_bytes;
UnreachableMemoryInfo() {}
- ~UnreachableMemoryInfo() {
- // Clear the memory that holds the leaks, otherwise the next attempt to
- // detect leaks may find the old data (for example in the jemalloc tcache)
- // and consider all the leaks to be referenced.
- memset(leaks.data(), 0, leaks.capacity() * sizeof(Leak));
- }
+ ~UnreachableMemoryInfo();
std::string ToString(bool log_contents) const;
};
diff --git a/libmemunreachable/tests/MemUnreachable_test.cpp b/libmemunreachable/tests/MemUnreachable_test.cpp
index 87417f1..bba0c6d 100644
--- a/libmemunreachable/tests/MemUnreachable_test.cpp
+++ b/libmemunreachable/tests/MemUnreachable_test.cpp
@@ -23,6 +23,8 @@
#include <memunreachable/memunreachable.h>
+#include "bionic.h"
+
namespace android {
class HiddenPointer {
@@ -48,7 +50,35 @@
write(0, ptr, 0);
}
-TEST(MemunreachableTest, clean) {
+class MemunreachableTest : public ::testing::Test {
+ protected:
+ virtual void SetUp() {
+ CleanStack(8192);
+ CleanTcache();
+ }
+
+ virtual void TearDown() {
+ CleanStack(8192);
+ CleanTcache();
+ }
+
+ // Allocate a buffer on the stack and zero it to make sure there are no
+ // stray pointers from old test runs.
+ void __attribute__((noinline)) CleanStack(size_t size) {
+ void* buf = alloca(size);
+ memset(buf, 0, size);
+ Ref(&buf);
+ }
+
+ // Disable and re-enable malloc to flush the jemalloc tcache to make sure
+ // there are stray pointers from old test runs there.
+ void CleanTcache() {
+ malloc_disable();
+ malloc_enable();
+ }
+};
+
+TEST_F(MemunreachableTest, clean) {
UnreachableMemoryInfo info;
ASSERT_TRUE(LogUnreachableMemory(true, 100));
@@ -57,7 +87,7 @@
ASSERT_EQ(0U, info.leaks.size());
}
-TEST(MemunreachableTest, stack) {
+TEST_F(MemunreachableTest, stack) {
HiddenPointer hidden_ptr;
{
@@ -91,7 +121,7 @@
void* g_ptr;
-TEST(MemunreachableTest, global) {
+TEST_F(MemunreachableTest, global) {
HiddenPointer hidden_ptr;
g_ptr = hidden_ptr.Get();
@@ -122,7 +152,7 @@
}
}
-TEST(MemunreachableTest, tls) {
+TEST_F(MemunreachableTest, tls) {
HiddenPointer hidden_ptr;
pthread_key_t key;
pthread_key_create(&key, nullptr);
@@ -157,10 +187,22 @@
pthread_key_delete(key);
}
-TEST(MemunreachableTest, twice) {
+TEST_F(MemunreachableTest, twice) {
HiddenPointer hidden_ptr;
{
+ void* ptr = hidden_ptr.Get();
+ Ref(&ptr);
+
+ UnreachableMemoryInfo info;
+
+ ASSERT_TRUE(GetUnreachableMemory(info));
+ ASSERT_EQ(0U, info.leaks.size());
+
+ ptr = nullptr;
+ }
+
+ {
UnreachableMemoryInfo info;
ASSERT_TRUE(GetUnreachableMemory(info));
@@ -184,7 +226,7 @@
}
}
-TEST(MemunreachableTest, log) {
+TEST_F(MemunreachableTest, log) {
HiddenPointer hidden_ptr;
ASSERT_TRUE(LogUnreachableMemory(true, 100));
@@ -199,17 +241,23 @@
}
}
-TEST(MemunreachableTest, notdumpable) {
+TEST_F(MemunreachableTest, notdumpable) {
+ if (getuid() == 0) {
+ // TODO(ccross): make this a skipped test when gtest supports them
+ printf("[ SKIP ] Not testable when running as root\n");
+ return;
+ }
+
ASSERT_EQ(0, prctl(PR_SET_DUMPABLE, 0));
HiddenPointer hidden_ptr;
- ASSERT_TRUE(LogUnreachableMemory(true, 100));
+ EXPECT_FALSE(LogUnreachableMemory(true, 100));
ASSERT_EQ(0, prctl(PR_SET_DUMPABLE, 1));
}
-TEST(MemunreachableTest, leak_lots) {
+TEST_F(MemunreachableTest, leak_lots) {
std::vector<HiddenPointer> hidden_ptrs;
hidden_ptrs.resize(1024);
diff --git a/libprocinfo/Android.bp b/libprocinfo/Android.bp
index b35882c..d776b3d 100644
--- a/libprocinfo/Android.bp
+++ b/libprocinfo/Android.bp
@@ -59,6 +59,7 @@
host_supported: true,
srcs: [
"process_test.cpp",
+ "process_map_test.cpp",
],
target: {
darwin: {
@@ -84,5 +85,36 @@
},
},
+ data: [
+ "testdata/*",
+ ],
+
test_suites: ["device-tests"],
}
+
+cc_benchmark {
+ name: "libprocinfo_benchmark",
+ defaults: ["libprocinfo_defaults"],
+ srcs: [
+ "process_map_benchmark.cpp",
+ ],
+ shared_libs: [
+ "libbacktrace",
+ "libbase",
+ "libprocinfo",
+ "libunwindstack",
+ ],
+ compile_multilib: "both",
+ multilib: {
+ lib32: {
+ suffix: "32",
+ },
+ lib64: {
+ suffix: "64",
+ },
+ },
+
+ data: [
+ "testdata/*",
+ ],
+}
diff --git a/libprocinfo/include/procinfo/process_map.h b/libprocinfo/include/procinfo/process_map.h
new file mode 100644
index 0000000..3771f9f
--- /dev/null
+++ b/libprocinfo/include/procinfo/process_map.h
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2018 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.
+ */
+
+#pragma once
+
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+
+#include <functional>
+#include <string>
+
+#include <android-base/file.h>
+
+namespace android {
+namespace procinfo {
+
+template <class CallbackType>
+bool ReadMapFileContent(char* content, const CallbackType& callback) {
+ uint64_t start_addr;
+ uint64_t end_addr;
+ uint16_t flags;
+ uint64_t pgoff;
+ char* next_line = content;
+ char* p;
+
+ auto pass_space = [&]() {
+ if (*p != ' ') {
+ return false;
+ }
+ while (*p == ' ') {
+ p++;
+ }
+ return true;
+ };
+
+ auto pass_xdigit = [&]() {
+ if (!isxdigit(*p)) {
+ return false;
+ }
+ do {
+ p++;
+ } while (isxdigit(*p));
+ return true;
+ };
+
+ while (next_line != nullptr && *next_line != '\0') {
+ p = next_line;
+ next_line = strchr(next_line, '\n');
+ if (next_line != nullptr) {
+ *next_line = '\0';
+ next_line++;
+ }
+ // Parse line like: 00400000-00409000 r-xp 00000000 fc:00 426998 /usr/lib/gvfs/gvfsd-http
+ char* end;
+ // start_addr
+ start_addr = strtoull(p, &end, 16);
+ if (end == p || *end != '-') {
+ return false;
+ }
+ p = end + 1;
+ // end_addr
+ end_addr = strtoull(p, &end, 16);
+ if (end == p) {
+ return false;
+ }
+ p = end;
+ if (!pass_space()) {
+ return false;
+ }
+ // flags
+ flags = 0;
+ if (*p == 'r') {
+ flags |= PROT_READ;
+ } else if (*p != '-') {
+ return false;
+ }
+ p++;
+ if (*p == 'w') {
+ flags |= PROT_WRITE;
+ } else if (*p != '-') {
+ return false;
+ }
+ p++;
+ if (*p == 'x') {
+ flags |= PROT_EXEC;
+ } else if (*p != '-') {
+ return false;
+ }
+ p++;
+ if (*p != 'p' && *p != 's') {
+ return false;
+ }
+ p++;
+ if (!pass_space()) {
+ return false;
+ }
+ // pgoff
+ pgoff = strtoull(p, &end, 16);
+ if (end == p) {
+ return false;
+ }
+ p = end;
+ if (!pass_space()) {
+ return false;
+ }
+ // major:minor
+ if (!pass_xdigit() || *p++ != ':' || !pass_xdigit() || !pass_space()) {
+ return false;
+ }
+ // inode
+ if (!pass_xdigit() || (*p != '\0' && !pass_space())) {
+ return false;
+ }
+ // filename
+ callback(start_addr, end_addr, flags, pgoff, p);
+ }
+ return true;
+}
+
+inline bool ReadMapFile(
+ const std::string& map_file,
+ const std::function<void(uint64_t, uint64_t, uint16_t, uint64_t, const char*)>& callback) {
+ std::string content;
+ if (!android::base::ReadFileToString(map_file, &content)) {
+ return false;
+ }
+ return ReadMapFileContent(&content[0], callback);
+}
+
+inline bool ReadProcessMaps(
+ pid_t pid,
+ const std::function<void(uint64_t, uint64_t, uint16_t, uint64_t, const char*)>& callback) {
+ return ReadMapFile("/proc/" + std::to_string(pid) + "/maps", callback);
+}
+
+} /* namespace procinfo */
+} /* namespace android */
diff --git a/libprocinfo/process_map_benchmark.cpp b/libprocinfo/process_map_benchmark.cpp
new file mode 100644
index 0000000..d9e8a4d
--- /dev/null
+++ b/libprocinfo/process_map_benchmark.cpp
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2018 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 <procinfo/process_map.h>
+
+#include <string.h>
+
+#include <string>
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <backtrace/BacktraceMap.h>
+#include <unwindstack/Maps.h>
+
+#include <benchmark/benchmark.h>
+
+struct MapInfo {
+ uint64_t start;
+ uint64_t end;
+ uint16_t flags;
+ uint64_t pgoff;
+ const std::string name;
+
+ MapInfo(uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, const char* name)
+ : start(start), end(end), flags(flags), pgoff(pgoff), name(name) {}
+};
+
+static void BM_ReadMapFile(benchmark::State& state) {
+ std::string map_file = android::base::GetExecutableDirectory() + "/testdata/maps";
+ for (auto _ : state) {
+ std::vector<MapInfo> maps;
+ android::procinfo::ReadMapFile(
+ map_file, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff,
+ const char* name) { maps.emplace_back(start, end, flags, pgoff, name); });
+ CHECK_EQ(maps.size(), 2043u);
+ }
+}
+BENCHMARK(BM_ReadMapFile);
+
+static void BM_unwindstack_FileMaps(benchmark::State& state) {
+ std::string map_file = android::base::GetExecutableDirectory() + "/testdata/maps";
+ for (auto _ : state) {
+ unwindstack::FileMaps maps(map_file);
+ maps.Parse();
+ CHECK_EQ(maps.Total(), 2043u);
+ }
+}
+BENCHMARK(BM_unwindstack_FileMaps);
+
+static void BM_unwindstack_BufferMaps(benchmark::State& state) {
+ std::string map_file = android::base::GetExecutableDirectory() + "/testdata/maps";
+ std::string content;
+ CHECK(android::base::ReadFileToString(map_file, &content));
+ for (auto _ : state) {
+ unwindstack::BufferMaps maps(content.c_str());
+ maps.Parse();
+ CHECK_EQ(maps.Total(), 2043u);
+ }
+}
+BENCHMARK(BM_unwindstack_BufferMaps);
+
+static void BM_backtrace_BacktraceMap(benchmark::State& state) {
+ pid_t pid = getpid();
+ for (auto _ : state) {
+ BacktraceMap* map = BacktraceMap::Create(pid, true);
+ CHECK(map != nullptr);
+ delete map;
+ }
+}
+BENCHMARK(BM_backtrace_BacktraceMap);
+
+BENCHMARK_MAIN();
diff --git a/libprocinfo/process_map_test.cpp b/libprocinfo/process_map_test.cpp
new file mode 100644
index 0000000..900fd85
--- /dev/null
+++ b/libprocinfo/process_map_test.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2018 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 <procinfo/process_map.h>
+
+#include <string>
+
+#include <android-base/file.h>
+
+#include <gtest/gtest.h>
+
+struct MapInfo {
+ uint64_t start;
+ uint64_t end;
+ uint16_t flags;
+ uint64_t pgoff;
+ const std::string name;
+
+ MapInfo(uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, const char* name)
+ : start(start), end(end), flags(flags), pgoff(pgoff), name(name) {}
+};
+
+TEST(process_map, smoke) {
+ std::string map_file = android::base::GetExecutableDirectory() + "/testdata/maps";
+ std::vector<MapInfo> maps;
+ ASSERT_TRUE(android::procinfo::ReadMapFile(
+ map_file, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff,
+ const char* name) { maps.emplace_back(start, end, flags, pgoff, name); }));
+ ASSERT_EQ(2043u, maps.size());
+ ASSERT_EQ(maps[0].start, 0x12c00000ULL);
+ ASSERT_EQ(maps[0].end, 0x2ac00000ULL);
+ ASSERT_EQ(maps[0].flags, PROT_READ | PROT_WRITE);
+ ASSERT_EQ(maps[0].pgoff, 0ULL);
+ ASSERT_EQ(maps[0].name, "/dev/ashmem/dalvik-main space (region space) (deleted)");
+ ASSERT_EQ(maps[876].start, 0x70e6c4f000ULL);
+ ASSERT_EQ(maps[876].end, 0x70e6c6b000ULL);
+ ASSERT_EQ(maps[876].flags, PROT_READ | PROT_EXEC);
+ ASSERT_EQ(maps[876].pgoff, 0ULL);
+ ASSERT_EQ(maps[876].name, "/system/lib64/libutils.so");
+ ASSERT_EQ(maps[1260].start, 0x70e96fa000ULL);
+ ASSERT_EQ(maps[1260].end, 0x70e96fb000ULL);
+ ASSERT_EQ(maps[1260].flags, PROT_READ);
+ ASSERT_EQ(maps[1260].pgoff, 0ULL);
+ ASSERT_EQ(maps[1260].name,
+ "/dev/ashmem/dalvik-classes.dex extracted in memory from "
+ "/data/app/com.google.sample.tunnel-HGGRU03Gu1Mwkf_-RnFmvw==/base.apk (deleted)");
+}
diff --git a/libprocinfo/testdata/maps b/libprocinfo/testdata/maps
new file mode 100644
index 0000000..3b312e3
--- /dev/null
+++ b/libprocinfo/testdata/maps
@@ -0,0 +1,2043 @@
+12c00000-2ac00000 rw-p 00000000 00:05 10267643 /dev/ashmem/dalvik-main space (region space) (deleted)
+6fb5d000-6fd6e000 rw-p 00000000 103:1d 639511 /data/dalvik-cache/arm64/system@framework@boot.art
+6fd6e000-6fd82000 r--p 00211000 103:1d 639511 /data/dalvik-cache/arm64/system@framework@boot.art
+6fd82000-6fe47000 rw-p 00000000 103:1d 639514 /data/dalvik-cache/arm64/system@framework@boot-core-libart.art
+6fe47000-6fe52000 r--p 000c5000 103:1d 639514 /data/dalvik-cache/arm64/system@framework@boot-core-libart.art
+6fe52000-6fe84000 rw-p 00000000 103:1d 639517 /data/dalvik-cache/arm64/system@framework@boot-conscrypt.art
+6fe84000-6fe87000 r--p 00032000 103:1d 639517 /data/dalvik-cache/arm64/system@framework@boot-conscrypt.art
+6fe87000-6feb2000 rw-p 00000000 103:1d 639520 /data/dalvik-cache/arm64/system@framework@boot-okhttp.art
+6feb2000-6feb5000 r--p 0002b000 103:1d 639520 /data/dalvik-cache/arm64/system@framework@boot-okhttp.art
+6feb5000-6fef4000 rw-p 00000000 103:1d 639523 /data/dalvik-cache/arm64/system@framework@boot-bouncycastle.art
+6fef4000-6fefb000 r--p 0003f000 103:1d 639523 /data/dalvik-cache/arm64/system@framework@boot-bouncycastle.art
+6fefb000-6ff3f000 rw-p 00000000 103:1d 639526 /data/dalvik-cache/arm64/system@framework@boot-apache-xml.art
+6ff3f000-6ff45000 r--p 00044000 103:1d 639526 /data/dalvik-cache/arm64/system@framework@boot-apache-xml.art
+6ff45000-6ff7a000 rw-p 00000000 103:1d 639529 /data/dalvik-cache/arm64/system@framework@boot-ext.art
+6ff7a000-6ff85000 r--p 00035000 103:1d 639529 /data/dalvik-cache/arm64/system@framework@boot-ext.art
+6ff85000-70594000 rw-p 00000000 103:1d 639532 /data/dalvik-cache/arm64/system@framework@boot-framework.art
+70594000-705cb000 r--p 0060f000 103:1d 639532 /data/dalvik-cache/arm64/system@framework@boot-framework.art
+705cb000-7061f000 rw-p 00000000 103:1d 639535 /data/dalvik-cache/arm64/system@framework@boot-telephony-common.art
+7061f000-70629000 r--p 00054000 103:1d 639535 /data/dalvik-cache/arm64/system@framework@boot-telephony-common.art
+70629000-70635000 rw-p 00000000 103:1d 639538 /data/dalvik-cache/arm64/system@framework@boot-voip-common.art
+70635000-70636000 r--p 0000c000 103:1d 639538 /data/dalvik-cache/arm64/system@framework@boot-voip-common.art
+70636000-70644000 rw-p 00000000 103:1d 639541 /data/dalvik-cache/arm64/system@framework@boot-ims-common.art
+70644000-70645000 r--p 0000e000 103:1d 639541 /data/dalvik-cache/arm64/system@framework@boot-ims-common.art
+70645000-70648000 rw-p 00000000 103:1d 639544 /data/dalvik-cache/arm64/system@framework@boot-android.hidl.base-V1.0-java.art
+70648000-7064c000 rw-p 00000000 103:1d 639547 /data/dalvik-cache/arm64/system@framework@boot-android.hidl.manager-V1.0-java.art
+7064c000-7064d000 r--p 00004000 103:1d 639547 /data/dalvik-cache/arm64/system@framework@boot-android.hidl.manager-V1.0-java.art
+7064d000-7064e000 rw-p 00000000 103:1d 639550 /data/dalvik-cache/arm64/system@framework@boot-framework-oahl-backward-compatibility.art
+7064e000-70652000 rw-p 00000000 103:1d 639553 /data/dalvik-cache/arm64/system@framework@boot-android.test.base.art
+70652000-70653000 r--p 00004000 103:1d 639553 /data/dalvik-cache/arm64/system@framework@boot-android.test.base.art
+70653000-70654000 rw-p 00000000 103:1d 639556 /data/dalvik-cache/arm64/system@framework@boot-com.google.vr.platform.art
+70654000-70655000 r--p 00001000 103:1d 639556 /data/dalvik-cache/arm64/system@framework@boot-com.google.vr.platform.art
+70655000-70731000 r--p 00000000 fc:00 940 /system/framework/arm64/boot.oat
+70731000-709ca000 r-xp 000dc000 fc:00 940 /system/framework/arm64/boot.oat
+709ca000-709cb000 rw-p 00000000 00:00 0 [anon:.bss]
+709cb000-70e4c000 r--s 00000000 fc:00 961 /system/framework/boot.vdex
+70e4c000-70e4d000 r--p 00375000 fc:00 940 /system/framework/arm64/boot.oat
+70e4d000-70e4e000 rw-p 00376000 fc:00 940 /system/framework/arm64/boot.oat
+70e4e000-70eab000 r--p 00000000 fc:00 916 /system/framework/arm64/boot-core-libart.oat
+70eab000-70fad000 r-xp 0005d000 fc:00 916 /system/framework/arm64/boot-core-libart.oat
+70fad000-70fae000 rw-p 00000000 00:00 0 [anon:.bss]
+70fae000-712a9000 r--s 00000000 fc:00 702 /system/framework/boot-core-libart.vdex
+712a9000-712aa000 r--p 0015f000 fc:00 916 /system/framework/arm64/boot-core-libart.oat
+712aa000-712ab000 rw-p 00160000 fc:00 916 /system/framework/arm64/boot-core-libart.oat
+712ab000-712bb000 r--p 00000000 fc:00 941 /system/framework/arm64/boot-conscrypt.oat
+712bb000-712e4000 r-xp 00010000 fc:00 941 /system/framework/arm64/boot-conscrypt.oat
+712e4000-712e5000 rw-p 00000000 00:00 0 [anon:.bss]
+712e5000-71346000 r--s 00000000 fc:00 970 /system/framework/boot-conscrypt.vdex
+71346000-71347000 r--p 00039000 fc:00 941 /system/framework/arm64/boot-conscrypt.oat
+71347000-71348000 rw-p 0003a000 fc:00 941 /system/framework/arm64/boot-conscrypt.oat
+71348000-71361000 r--p 00000000 fc:00 908 /system/framework/arm64/boot-okhttp.oat
+71361000-713a3000 r-xp 00019000 fc:00 908 /system/framework/arm64/boot-okhttp.oat
+713a3000-713a4000 rw-p 00000000 00:00 0 [anon:.bss]
+713a4000-71403000 r--s 00000000 fc:00 886 /system/framework/boot-okhttp.vdex
+71403000-71404000 r--p 0005b000 fc:00 908 /system/framework/arm64/boot-okhttp.oat
+71404000-71405000 rw-p 0005c000 fc:00 908 /system/framework/arm64/boot-okhttp.oat
+71405000-71415000 r--p 00000000 fc:00 936 /system/framework/arm64/boot-bouncycastle.oat
+71415000-71437000 r-xp 00010000 fc:00 936 /system/framework/arm64/boot-bouncycastle.oat
+71437000-71438000 rw-p 00000000 00:00 0 [anon:.bss]
+71438000-7157b000 r--s 00000000 fc:00 1006 /system/framework/boot-bouncycastle.vdex
+7157b000-7157c000 r--p 00032000 fc:00 936 /system/framework/arm64/boot-bouncycastle.oat
+7157c000-7157d000 rw-p 00033000 fc:00 936 /system/framework/arm64/boot-bouncycastle.oat
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+70eba3c000-70eba40000 rw-p 00000000 00:05 10270790 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba40000-70eba44000 rw-p 00000000 00:05 10270789 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba44000-70eba48000 rw-p 00000000 00:05 10270788 /dev/ashmem/dalvik-thread local mark stack (deleted)
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+70eba4c000-70eba50000 rw-p 00000000 00:05 10270786 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba50000-70eba52000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70eba52000-70eba53000 r--s 00000000 fc:00 971 /system/framework/android.hidl.base-V1.0-java.jar
+70eba53000-70eba57000 rw-p 00000000 00:05 10270785 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba57000-70eba5b000 rw-p 00000000 00:05 10270784 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba5b000-70eba5f000 rw-p 00000000 00:05 10270783 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba5f000-70eba63000 rw-p 00000000 00:05 10270782 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba63000-70eba64000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70eba64000-70eba65000 r--s 00000000 fc:00 889 /system/framework/ims-common.jar
+70eba65000-70eba69000 rw-p 00000000 00:05 10270781 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba69000-70eba6d000 rw-p 00000000 00:05 10270780 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba6d000-70eba71000 rw-p 00000000 00:05 10270779 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba71000-70eba75000 rw-p 00000000 00:05 10270778 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70eba75000-70eba95000 rw-p 00000000 00:05 10267647 /dev/ashmem/dalvik-large marked objects (deleted)
+70eba95000-70ebab5000 rw-p 00000000 00:05 10267646 /dev/ashmem/dalvik-large live objects (deleted)
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+70ebab6000-70ebab7000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebab7000-70ebabb000 rw-p 00000000 00:05 10270777 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebabb000-70ebadb000 r--s 00000000 00:10 16603 /dev/__properties__/u:object_r:exported_fingerprint_prop:s0
+70ebadb000-70ebadc000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebadc000-70ebadd000 r--s 00000000 fc:00 878 /system/framework/voip-common.jar
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+70ebae3000-70ebae7000 rw-p 00000000 00:05 10270775 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebae7000-70ebaeb000 rw-p 00000000 00:05 10270774 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebaeb000-70ebaef000 rw-p 00000000 00:05 10270773 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebaef000-70ebb0f000 r--s 00000000 00:10 16582 /dev/__properties__/u:object_r:debug_prop:s0
+70ebb0f000-70ebb10000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebb10000-70ebb11000 r--s 00000000 fc:00 703 /system/framework/telephony-common.jar
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+70ebb19000-70ebb1d000 rw-p 00000000 00:05 10270771 /dev/ashmem/dalvik-thread local mark stack (deleted)
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+70ebb3d000-70ebb5d000 r--s 00000000 00:10 16650 /dev/__properties__/u:object_r:system_prop:s0
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+70ebb7d000-70ebb9d000 r--s 00000000 00:10 16598 /dev/__properties__/u:object_r:exported_config_prop:s0
+70ebb9d000-70ebb9e000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebb9e000-70ebba2000 rw-p 00000000 00:05 10270770 /dev/ashmem/dalvik-thread local mark stack (deleted)
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+70ebba6000-70ebba7000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebba7000-70ebba8000 r--s 00000000 fc:00 1004 /system/framework/framework.jar
+70ebba8000-70ebbac000 rw-p 00000000 00:05 10270768 /dev/ashmem/dalvik-thread local mark stack (deleted)
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+70ebbb0000-70ebbb4000 rw-p 00000000 00:05 10270766 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebbb4000-70ebbb8000 rw-p 00000000 00:05 10270765 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebbb8000-70ebbbc000 rw-p 00000000 00:05 10270764 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebbbc000-70ebbc0000 rw-p 00000000 00:05 10270763 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebbc0000-70ebbc4000 rw-p 00000000 00:05 10270762 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebbc4000-70ebbe4000 r--s 00000000 00:10 16581 /dev/__properties__/u:object_r:dalvik_prop:s0
+70ebbe4000-70ebbe5000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebbe5000-70ebbe6000 r--s 00004000 fc:00 877 /system/framework/apache-xml.jar
+70ebbe6000-70ebbe8000 rw-p 00000000 00:05 10270993 /dev/ashmem/dalvik-indirect ref table (deleted)
+70ebbe8000-70ebbec000 rw-p 00000000 00:05 10270761 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebbec000-70ebbf0000 rw-p 00000000 00:05 10270760 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebbf0000-70ebbf4000 rw-p 00000000 00:05 10270759 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebbf4000-70ebbf8000 rw-p 00000000 00:05 10270758 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebbf8000-70ebbf9000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebbf9000-70ebbfa000 r--s 00000000 fc:00 968 /system/framework/bouncycastle.jar
+70ebbfa000-70ebbfc000 rw-p 00000000 00:05 10270992 /dev/ashmem/dalvik-indirect ref table (deleted)
+70ebbfc000-70ebc00000 rw-p 00000000 00:05 10270757 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc00000-70ebc04000 rw-p 00000000 00:05 10270756 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc04000-70ebc08000 rw-p 00000000 00:05 10270755 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc08000-70ebc0c000 rw-p 00000000 00:05 10270754 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc0c000-70ebc10000 rw-p 00000000 00:05 10270753 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc10000-70ebc14000 rw-p 00000000 00:05 10270752 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc14000-70ebc15000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebc15000-70ebc16000 r--s 00000000 fc:00 960 /system/framework/okhttp.jar
+70ebc16000-70ebc1a000 rw-p 00000000 00:05 10270751 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc1a000-70ebc1e000 rw-p 00000000 00:05 10270750 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc1e000-70ebc3e000 r--s 00000000 00:10 16584 /dev/__properties__/u:object_r:default_prop:s0
+70ebc3e000-70ebc3f000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebc3f000-70ebc40000 r--s 00000000 fc:00 974 /system/framework/conscrypt.jar
+70ebc40000-70ebc42000 rw-p 00000000 00:05 10269719 /dev/ashmem/dalvik-indirect ref table (deleted)
+70ebc42000-70ebc46000 rw-p 00000000 00:05 10270749 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc46000-70ebc4a000 rw-p 00000000 00:05 10270748 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc4a000-70ebc4e000 rw-p 00000000 00:05 10270747 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc4e000-70ebc4f000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebc4f000-70ebc51000 rw-p 00000000 00:05 10269718 /dev/ashmem/dalvik-indirect ref table (deleted)
+70ebc51000-70ebc55000 rw-p 00000000 00:05 10270746 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc55000-70ebc59000 rw-p 00000000 00:05 10270745 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc59000-70ebc5d000 rw-p 00000000 00:05 10270744 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc5d000-70ebc7d000 r--s 00000000 00:10 16599 /dev/__properties__/u:object_r:exported_dalvik_prop:s0
+70ebc7d000-70ebc7e000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebc7e000-70ebc7f000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebc7f000-70ebc80000 r--s 00004000 fc:00 963 /system/framework/core-libart.jar
+70ebc80000-70ebc81000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebc81000-70ebc85000 rw-p 00000000 00:05 10270743 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc85000-70ebc89000 rw-p 00000000 00:05 10270742 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc89000-70ebc8a000 rw-p 00000000 00:00 0 [anon:linker_alloc_small_objects]
+70ebc8a000-70ebc8c000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebc8c000-70ebc8d000 r--s 0001e000 fc:00 699 /system/framework/core-oj.jar
+70ebc8d000-70ebc91000 rw-p 00000000 00:05 10270741 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc91000-70ebc95000 rw-p 00000000 00:05 10270740 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc95000-70ebc99000 rw-p 00000000 00:05 10270739 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebc99000-70ebc9b000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebc9b000-70ebc9c000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebc9c000-70ebca0000 rw-p 00000000 00:05 10270738 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebca0000-70ebca4000 rw-p 00000000 00:05 10270737 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebca4000-70ebca8000 rw-p 00000000 00:05 10270736 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebca8000-70ebcac000 rw-p 00000000 00:05 10270735 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebcac000-70ebcb0000 rw-p 00000000 00:05 10270734 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebcb0000-70ebcd0000 r--s 00000000 00:10 16592 /dev/__properties__/u:object_r:exported2_system_prop:s0
+70ebcd0000-70ebcd1000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebcd1000-70ebcd5000 rw-p 00000000 00:05 10270733 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebcd5000-70ebcd9000 rw-p 00000000 00:05 10270732 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebcd9000-70ebcdd000 rw-p 00000000 00:05 10270731 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebcdd000-70ebce1000 rw-p 00000000 00:05 10270730 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebce1000-70ebce5000 rw-p 00000000 00:05 10270729 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebce5000-70ebce9000 rw-p 00000000 00:05 10270728 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebce9000-70ebcea000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebcea000-70ebcec000 rw-p 00000000 00:05 10270987 /dev/ashmem/dalvik-indirect ref table (deleted)
+70ebcec000-70ebcf9000 r--p 00646000 103:1d 639532 /data/dalvik-cache/arm64/system@framework@boot-framework.art
+70ebcf9000-70ebd19000 r--s 00000000 00:10 16620 /dev/__properties__/u:object_r:log_tag_prop:s0
+70ebd19000-70ebd39000 r--s 00000000 00:10 16621 /dev/__properties__/u:object_r:logd_prop:s0
+70ebd39000-70ebd3a000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebd3a000-70ebd3b000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebd3b000-70ebd3f000 rw-p 00000000 00:05 10270727 /dev/ashmem/dalvik-thread local mark stack (deleted)
+70ebd3f000-70ebd40000 r--p 00002000 103:1d 639556 /data/dalvik-cache/arm64/system@framework@boot-com.google.vr.platform.art
+70ebd40000-70ebd41000 r--p 00005000 103:1d 639553 /data/dalvik-cache/arm64/system@framework@boot-android.test.base.art
+70ebd41000-70ebd42000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebd42000-70ebd43000 r--p 00001000 103:1d 639550 /data/dalvik-cache/arm64/system@framework@boot-framework-oahl-backward-compatibility.art
+70ebd43000-70ebd44000 r--p 00005000 103:1d 639547 /data/dalvik-cache/arm64/system@framework@boot-android.hidl.manager-V1.0-java.art
+70ebd44000-70ebd45000 r--p 00003000 103:1d 639544 /data/dalvik-cache/arm64/system@framework@boot-android.hidl.base-V1.0-java.art
+70ebd45000-70ebd46000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebd46000-70ebd47000 r--p 0000f000 103:1d 639541 /data/dalvik-cache/arm64/system@framework@boot-ims-common.art
+70ebd47000-70ebd48000 r--p 0000d000 103:1d 639538 /data/dalvik-cache/arm64/system@framework@boot-voip-common.art
+70ebd48000-70ebd4a000 r--p 0005e000 103:1d 639535 /data/dalvik-cache/arm64/system@framework@boot-telephony-common.art
+70ebd4a000-70ebd4b000 r--p 00040000 103:1d 639529 /data/dalvik-cache/arm64/system@framework@boot-ext.art
+70ebd4b000-70ebd4c000 r--p 0004a000 103:1d 639526 /data/dalvik-cache/arm64/system@framework@boot-apache-xml.art
+70ebd4c000-70ebd4d000 r--p 00046000 103:1d 639523 /data/dalvik-cache/arm64/system@framework@boot-bouncycastle.art
+70ebd4d000-70ebd4e000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebd4e000-70ebd53000 r--p 00225000 103:1d 639511 /data/dalvik-cache/arm64/system@framework@boot.art
+70ebd53000-70ebd5a000 rw-p 00000000 fc:00 583 /system/etc/event-log-tags
+70ebd5a000-70ebd5b000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebd5b000-70ebd5c000 r--p 0002e000 103:1d 639520 /data/dalvik-cache/arm64/system@framework@boot-okhttp.art
+70ebd5c000-70ebd5d000 r--p 00035000 103:1d 639517 /data/dalvik-cache/arm64/system@framework@boot-conscrypt.art
+70ebd5d000-70ebd5f000 r--p 000d0000 103:1d 639514 /data/dalvik-cache/arm64/system@framework@boot-core-libart.art
+70ebd5f000-70ebd62000 r--p 00000000 00:00 0 [anon:atexit handlers]
+70ebd62000-70ebd63000 rw-p 00000000 00:00 0
+70ebd63000-70ebd83000 r--s 00000000 00:10 16590 /dev/__properties__/u:object_r:exported2_default_prop:s0
+70ebd83000-70ebd84000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebd84000-70ebd89000 rw-p 00000000 00:00 0
+70ebd89000-70ebda9000 r--s 00000000 00:10 16669 /dev/__properties__/properties_serial
+70ebda9000-70ebdb3000 r--s 00000000 00:10 16560 /dev/__properties__/property_info
+70ebdb3000-70ebdb4000 rw-p 00000000 00:00 0 [anon:linker_alloc_vector]
+70ebdb4000-70ebdb5000 rw-p 00000000 00:00 0 [anon:linker_alloc_small_objects]
+70ebdb5000-70ebdb7000 rw-p 00000000 00:00 0 [anon:System property context nodes]
+70ebdb7000-70ebdb8000 rw-p 00000000 00:00 0 [anon:linker_alloc_vector]
+70ebdb8000-70ebdba000 rw-p 00000000 00:00 0 [anon:linker_alloc_small_objects]
+70ebdba000-70ebdbb000 rw-p 00000000 00:00 0 [anon:linker_alloc]
+70ebdbb000-70ebdbd000 rw-p 00000000 00:00 0 [anon:linker_alloc_small_objects]
+70ebdbd000-70ebdbe000 r--p 00000000 00:00 0 [anon:atexit handlers]
+70ebdbe000-70ebdbf000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebdbf000-70ebdc0000 rw-p 00000000 00:00 0 [anon:linker_alloc_small_objects]
+70ebdc0000-70ebdc1000 rw-p 00000000 00:00 0 [anon:linker_alloc_vector]
+70ebdc1000-70ebdc2000 rw-p 00000000 00:00 0 [anon:linker_alloc_small_objects]
+70ebdc2000-70ebdc3000 rw-p 00000000 00:00 0 [anon:linker_alloc_vector]
+70ebdc3000-70ebdc5000 rw-p 00000000 00:00 0 [anon:linker_alloc_small_objects]
+70ebdc5000-70ebde5000 r--s 00000000 00:10 16600 /dev/__properties__/u:object_r:exported_default_prop:s0
+70ebde5000-70ebde6000 rw-p 00000000 00:00 0 [anon:linker_alloc_small_objects]
+70ebde6000-70ebde8000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebde8000-70ebe08000 r--s 00000000 00:10 16582 /dev/__properties__/u:object_r:debug_prop:s0
+70ebe08000-70ebe09000 ---p 00000000 00:00 0
+70ebe09000-70ebe0a000 rw-p 00000000 00:00 0
+70ebe0a000-70ebe0b000 ---p 00000000 00:00 0
+70ebe0b000-70ebe2b000 r--s 00000000 00:10 16669 /dev/__properties__/properties_serial
+70ebe2b000-70ebe2d000 rw-p 00000000 00:00 0 [anon:System property context nodes]
+70ebe2d000-70ebf55000 r-xp 00000000 fc:00 3184 /system/bin/linker64
+70ebf55000-70ebf5f000 r--s 00000000 00:10 16560 /dev/__properties__/property_info
+70ebf5f000-70ebf60000 r--p 00000000 00:00 0 [anon:linker_alloc]
+70ebf60000-70ebf61000 rw-p 00000000 00:00 0 [anon:linker_alloc_vector]
+70ebf61000-70ebf62000 rw-p 00000000 00:00 0 [anon:linker_alloc_small_objects]
+70ebf62000-70ebf63000 rw-p 00000000 00:00 0 [anon:arc4random data]
+70ebf63000-70ebf64000 rw-p 00000000 00:00 0 [anon:linker_alloc_small_objects]
+70ebf64000-70ebf65000 r--p 00000000 00:00 0 [anon:atexit handlers]
+70ebf65000-70ebf66000 ---p 00000000 00:00 0 [anon:thread signal stack guard]
+70ebf66000-70ebf6a000 rw-p 00000000 00:00 0 [anon:thread signal stack]
+70ebf6a000-70ebf6b000 rw-p 00000000 00:00 0 [anon:arc4random data]
+70ebf6b000-70ebf6c000 ---p 00000000 00:00 0 [anon:bionic TLS guard]
+70ebf6c000-70ebf6f000 rw-p 00000000 00:00 0 [anon:bionic TLS]
+70ebf6f000-70ebf70000 ---p 00000000 00:00 0 [anon:bionic TLS guard]
+70ebf70000-70ebf71000 r--p 00000000 00:00 0 [vvar]
+70ebf71000-70ebf72000 r-xp 00000000 00:00 0 [vdso]
+70ebf72000-70ebf7d000 r--p 00135000 fc:00 3184 /system/bin/linker64
+70ebf7d000-70ebf7e000 rw-p 00140000 fc:00 3184 /system/bin/linker64
+70ebf7e000-70ebf81000 rw-p 00000000 00:00 0
+70ebf81000-70ebf82000 r--p 00000000 00:00 0
+70ebf82000-70ebf89000 rw-p 00000000 00:00 0
+7fc7df1000-7fc7df2000 ---p 00000000 00:00 0
+7fc7df2000-7fc85f1000 rw-p 00000000 00:00 0 [stack]
diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index d411cee..82f2e73 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -110,6 +110,10 @@
},
},
+ static_libs: [
+ "libprocinfo",
+ ],
+
shared_libs: [
"libbase",
"libdexfile",
@@ -198,6 +202,7 @@
"tests/files/offline/jit_debug_x86/*",
"tests/files/offline/jit_map_arm/*",
"tests/files/offline/gnu_debugdata_arm/*",
+ "tests/files/offline/offset_arm/*",
"tests/files/offline/straddle_arm/*",
"tests/files/offline/straddle_arm64/*",
],
diff --git a/libunwindstack/Elf.cpp b/libunwindstack/Elf.cpp
index 02f8a9a..3762107 100644
--- a/libunwindstack/Elf.cpp
+++ b/libunwindstack/Elf.cpp
@@ -160,14 +160,14 @@
}
// The relative pc is always relative to the start of the map from which it comes.
-bool Elf::Step(uint64_t rel_pc, uint64_t adjusted_rel_pc, uint64_t elf_offset, Regs* regs,
- Memory* process_memory, bool* finished) {
+bool Elf::Step(uint64_t rel_pc, uint64_t adjusted_rel_pc, Regs* regs, Memory* process_memory,
+ bool* finished) {
if (!valid_) {
return false;
}
// The relative pc expectd by StepIfSignalHandler is relative to the start of the elf.
- if (regs->StepIfSignalHandler(rel_pc + elf_offset, this, process_memory)) {
+ if (regs->StepIfSignalHandler(rel_pc, this, process_memory)) {
*finished = false;
return true;
}
diff --git a/libunwindstack/Maps.cpp b/libunwindstack/Maps.cpp
index e1a1a71..bb682ea 100644
--- a/libunwindstack/Maps.cpp
+++ b/libunwindstack/Maps.cpp
@@ -24,6 +24,7 @@
#include <unistd.h>
#include <android-base/unique_fd.h>
+#include <procinfo/process_map.h>
#include <algorithm>
#include <cctype>
@@ -57,150 +58,16 @@
return nullptr;
}
-// Assumes that line does not end in '\n'.
-static MapInfo* InternalParseLine(const char* line) {
- // Do not use a sscanf implementation since it is not performant.
-
- // Example linux /proc/<pid>/maps lines:
- // 6f000000-6f01e000 rwxp 00000000 00:0c 16389419 /system/lib/libcomposer.so
- char* str;
- const char* old_str = line;
- uint64_t start = strtoull(old_str, &str, 16);
- if (old_str == str || *str++ != '-') {
- return nullptr;
- }
-
- old_str = str;
- uint64_t end = strtoull(old_str, &str, 16);
- if (old_str == str || !std::isspace(*str++)) {
- return nullptr;
- }
-
- while (std::isspace(*str)) {
- str++;
- }
-
- // Parse permissions data.
- if (*str == '\0') {
- return nullptr;
- }
- uint16_t flags = 0;
- if (*str == 'r') {
- flags |= PROT_READ;
- } else if (*str != '-') {
- return nullptr;
- }
- str++;
- if (*str == 'w') {
- flags |= PROT_WRITE;
- } else if (*str != '-') {
- return nullptr;
- }
- str++;
- if (*str == 'x') {
- flags |= PROT_EXEC;
- } else if (*str != '-') {
- return nullptr;
- }
- str++;
- if (*str != 'p' && *str != 's') {
- return nullptr;
- }
- str++;
-
- if (!std::isspace(*str++)) {
- return nullptr;
- }
-
- old_str = str;
- uint64_t offset = strtoull(old_str, &str, 16);
- if (old_str == str || !std::isspace(*str)) {
- return nullptr;
- }
-
- // Ignore the 00:00 values.
- old_str = str;
- (void)strtoull(old_str, &str, 16);
- if (old_str == str || *str++ != ':') {
- return nullptr;
- }
- if (std::isspace(*str)) {
- return nullptr;
- }
-
- // Skip the inode.
- old_str = str;
- (void)strtoull(str, &str, 16);
- if (old_str == str || !std::isspace(*str++)) {
- return nullptr;
- }
-
- // Skip decimal digit.
- old_str = str;
- (void)strtoull(old_str, &str, 10);
- if (old_str == str || (!std::isspace(*str) && *str != '\0')) {
- return nullptr;
- }
-
- while (std::isspace(*str)) {
- str++;
- }
- if (*str == '\0') {
- return new MapInfo(start, end, offset, flags, "");
- }
-
- // Save the name data.
- std::string name(str);
-
- // Mark a device map in /dev/ and not in /dev/ashmem/ specially.
- if (name.substr(0, 5) == "/dev/" && name.substr(5, 7) != "ashmem/") {
- flags |= MAPS_FLAGS_DEVICE_MAP;
- }
- return new MapInfo(start, end, offset, flags, name);
-}
-
bool Maps::Parse() {
- int fd = open(GetMapsFile().c_str(), O_RDONLY | O_CLOEXEC);
- if (fd == -1) {
- return false;
- }
-
- bool return_value = true;
- char buffer[2048];
- size_t leftover = 0;
- while (true) {
- ssize_t bytes = read(fd, &buffer[leftover], 2048 - leftover);
- if (bytes == -1) {
- return_value = false;
- break;
- }
- if (bytes == 0) {
- break;
- }
- bytes += leftover;
- char* line = buffer;
- while (bytes > 0) {
- char* newline = static_cast<char*>(memchr(line, '\n', bytes));
- if (newline == nullptr) {
- memmove(buffer, line, bytes);
- break;
- }
- *newline = '\0';
-
- MapInfo* map_info = InternalParseLine(line);
- if (map_info == nullptr) {
- return_value = false;
- break;
- }
- maps_.push_back(map_info);
-
- bytes -= newline - line + 1;
- line = newline + 1;
- }
- leftover = bytes;
- }
- close(fd);
- return return_value;
+ return android::procinfo::ReadMapFile(
+ GetMapsFile(),
+ [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, const char* name) {
+ // Mark a device map in /dev/ and not in /dev/ashmem/ specially.
+ if (strncmp(name, "/dev/", 5) == 0 && strncmp(name + 5, "ashmem/", 7) != 0) {
+ flags |= unwindstack::MAPS_FLAGS_DEVICE_MAP;
+ }
+ maps_.push_back(new MapInfo(start, end, pgoff, flags, name));
+ });
}
void Maps::Add(uint64_t start, uint64_t end, uint64_t offset, uint64_t flags,
@@ -222,26 +89,16 @@
}
bool BufferMaps::Parse() {
- const char* start_of_line = buffer_;
- do {
- std::string line;
- const char* end_of_line = strchr(start_of_line, '\n');
- if (end_of_line == nullptr) {
- line = start_of_line;
- } else {
- line = std::string(start_of_line, end_of_line - start_of_line);
- end_of_line++;
- }
-
- MapInfo* map_info = InternalParseLine(line.c_str());
- if (map_info == nullptr) {
- return false;
- }
- maps_.push_back(map_info);
-
- start_of_line = end_of_line;
- } while (start_of_line != nullptr && *start_of_line != '\0');
- return true;
+ std::string content(buffer_);
+ return android::procinfo::ReadMapFileContent(
+ &content[0],
+ [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, const char* name) {
+ // Mark a device map in /dev/ and not in /dev/ashmem/ specially.
+ if (strncmp(name, "/dev/", 5) == 0 && strncmp(name + 5, "ashmem/", 7) != 0) {
+ flags |= unwindstack::MAPS_FLAGS_DEVICE_MAP;
+ }
+ maps_.push_back(new MapInfo(start, end, pgoff, flags, name));
+ });
}
const std::string RemoteMaps::GetMapsFile() const {
diff --git a/libunwindstack/Unwinder.cpp b/libunwindstack/Unwinder.cpp
index 9a6c6df..099cc9e 100644
--- a/libunwindstack/Unwinder.cpp
+++ b/libunwindstack/Unwinder.cpp
@@ -220,8 +220,7 @@
in_device_map = true;
} else {
bool finished;
- stepped = elf->Step(rel_pc, step_pc, map_info->elf_offset, regs_, process_memory_.get(),
- &finished);
+ stepped = elf->Step(rel_pc, step_pc, regs_, process_memory_.get(), &finished);
elf->GetLastError(&last_error_);
if (stepped && finished) {
break;
diff --git a/libunwindstack/include/unwindstack/Elf.h b/libunwindstack/include/unwindstack/Elf.h
index 385973e..f4cdbda 100644
--- a/libunwindstack/include/unwindstack/Elf.h
+++ b/libunwindstack/include/unwindstack/Elf.h
@@ -65,8 +65,8 @@
uint64_t GetRelPc(uint64_t pc, const MapInfo* map_info);
- bool Step(uint64_t rel_pc, uint64_t adjusted_rel_pc, uint64_t elf_offset, Regs* regs,
- Memory* process_memory, bool* finished);
+ bool Step(uint64_t rel_pc, uint64_t adjusted_rel_pc, Regs* regs, Memory* process_memory,
+ bool* finished);
ElfInterface* CreateInterfaceFromMemory(Memory* memory);
diff --git a/libunwindstack/include/unwindstack/MapInfo.h b/libunwindstack/include/unwindstack/MapInfo.h
index a57fe68..ac0df41 100644
--- a/libunwindstack/include/unwindstack/MapInfo.h
+++ b/libunwindstack/include/unwindstack/MapInfo.h
@@ -34,6 +34,13 @@
struct MapInfo {
MapInfo() = default;
MapInfo(uint64_t start, uint64_t end) : start(start), end(end) {}
+ MapInfo(uint64_t start, uint64_t end, uint64_t offset, uint64_t flags, const char* name)
+ : start(start),
+ end(end),
+ offset(offset),
+ flags(flags),
+ name(name),
+ load_bias(static_cast<uint64_t>(-1)) {}
MapInfo(uint64_t start, uint64_t end, uint64_t offset, uint64_t flags, const std::string& name)
: start(start),
end(end),
diff --git a/libunwindstack/tests/ElfTest.cpp b/libunwindstack/tests/ElfTest.cpp
index f9028c4..aecbf6d 100644
--- a/libunwindstack/tests/ElfTest.cpp
+++ b/libunwindstack/tests/ElfTest.cpp
@@ -133,7 +133,7 @@
ASSERT_FALSE(elf.GetFunctionName(0, &name, &func_offset));
bool finished;
- ASSERT_FALSE(elf.Step(0, 0, 0, nullptr, nullptr, &finished));
+ ASSERT_FALSE(elf.Step(0, 0, nullptr, nullptr, &finished));
}
TEST_F(ElfTest, elf32_invalid_machine) {
@@ -330,7 +330,7 @@
elf.FakeSetValid(true);
elf.FakeSetLoadBias(0);
bool finished;
- ASSERT_TRUE(elf.Step(0x1000, 0x1000, 0x2000, ®s, &process_memory, &finished));
+ ASSERT_TRUE(elf.Step(0x3000, 0x1000, ®s, &process_memory, &finished));
EXPECT_FALSE(finished);
EXPECT_EQ(15U, regs.pc());
EXPECT_EQ(13U, regs.sp());
@@ -370,7 +370,7 @@
EXPECT_CALL(*interface, Step(0x1000, 0, ®s, &process_memory, &finished))
.WillOnce(::testing::Return(true));
- ASSERT_TRUE(elf.Step(0x1004, 0x1000, 0x2000, ®s, &process_memory, &finished));
+ ASSERT_TRUE(elf.Step(0x1004, 0x1000, ®s, &process_memory, &finished));
}
TEST_F(ElfTest, step_in_interface_non_zero_load_bias) {
@@ -388,7 +388,7 @@
EXPECT_CALL(*interface, Step(0x7300, 0x4000, ®s, &process_memory, &finished))
.WillOnce(::testing::Return(true));
- ASSERT_TRUE(elf.Step(0x7304, 0x7300, 0x2000, ®s, &process_memory, &finished));
+ ASSERT_TRUE(elf.Step(0x7304, 0x7300, ®s, &process_memory, &finished));
}
TEST_F(ElfTest, get_global_invalid_elf) {
diff --git a/libunwindstack/tests/UnwindOfflineTest.cpp b/libunwindstack/tests/UnwindOfflineTest.cpp
index 2b8f0c2..285fc9e 100644
--- a/libunwindstack/tests/UnwindOfflineTest.cpp
+++ b/libunwindstack/tests/UnwindOfflineTest.cpp
@@ -46,6 +46,12 @@
namespace unwindstack {
+static void AddMemory(std::string file_name, MemoryOfflineParts* parts) {
+ MemoryOffline* memory = new MemoryOffline;
+ ASSERT_TRUE(memory->Init(file_name.c_str(), 0));
+ parts->Add(memory);
+}
+
class UnwindOfflineTest : public ::testing::Test {
protected:
void TearDown() override {
@@ -64,9 +70,24 @@
maps_.reset(new BufferMaps(data.c_str()));
ASSERT_TRUE(maps_->Parse());
- std::unique_ptr<MemoryOffline> stack_memory(new MemoryOffline);
- ASSERT_TRUE(stack_memory->Init((dir_ + "stack.data").c_str(), 0));
- process_memory_.reset(stack_memory.release());
+ std::string stack_name(dir_ + "stack.data");
+ struct stat st;
+ if (stat(stack_name.c_str(), &st) == 0 && S_ISREG(st.st_mode)) {
+ std::unique_ptr<MemoryOffline> stack_memory(new MemoryOffline);
+ ASSERT_TRUE(stack_memory->Init((dir_ + "stack.data").c_str(), 0));
+ process_memory_.reset(stack_memory.release());
+ } else {
+ std::unique_ptr<MemoryOfflineParts> stack_memory(new MemoryOfflineParts);
+ for (size_t i = 0;; i++) {
+ stack_name = dir_ + "stack" + std::to_string(i) + ".data";
+ if (stat(stack_name.c_str(), &st) == -1 || !S_ISREG(st.st_mode)) {
+ ASSERT_TRUE(i != 0) << "No stack data files found.";
+ break;
+ }
+ AddMemory(stack_name, stack_memory.get());
+ }
+ process_memory_.reset(stack_memory.release());
+ }
switch (arch) {
case ARCH_ARM: {
@@ -180,7 +201,7 @@
}
TEST_F(UnwindOfflineTest, pc_straddle_arm) {
- Init("straddle_arm/", ARCH_ARM);
+ ASSERT_NO_FATAL_FAILURE(Init("straddle_arm/", ARCH_ARM));
Unwinder unwinder(128, maps_.get(), regs_.get(), process_memory_);
unwinder.Unwind();
@@ -204,7 +225,7 @@
}
TEST_F(UnwindOfflineTest, pc_in_gnu_debugdata_arm) {
- Init("gnu_debugdata_arm/", ARCH_ARM);
+ ASSERT_NO_FATAL_FAILURE(Init("gnu_debugdata_arm/", ARCH_ARM));
Unwinder unwinder(128, maps_.get(), regs_.get(), process_memory_);
unwinder.Unwind();
@@ -224,7 +245,7 @@
}
TEST_F(UnwindOfflineTest, pc_straddle_arm64) {
- Init("straddle_arm64/", ARCH_ARM64);
+ ASSERT_NO_FATAL_FAILURE(Init("straddle_arm64/", ARCH_ARM64));
Unwinder unwinder(128, maps_.get(), regs_.get(), process_memory_);
unwinder.Unwind();
@@ -255,14 +276,8 @@
EXPECT_EQ(0x7fe0d84110U, unwinder.frames()[5].sp);
}
-static void AddMemory(std::string file_name, MemoryOfflineParts* parts) {
- MemoryOffline* memory = new MemoryOffline;
- ASSERT_TRUE(memory->Init(file_name.c_str(), 0));
- parts->Add(memory);
-}
-
TEST_F(UnwindOfflineTest, jit_debug_x86) {
- Init("jit_debug_x86/", ARCH_X86);
+ ASSERT_NO_FATAL_FAILURE(Init("jit_debug_x86/", ARCH_X86));
MemoryOfflineParts* memory = new MemoryOfflineParts;
AddMemory(dir_ + "descriptor.data", memory);
@@ -555,7 +570,7 @@
}
TEST_F(UnwindOfflineTest, jit_debug_arm) {
- Init("jit_debug_arm/", ARCH_ARM);
+ ASSERT_NO_FATAL_FAILURE(Init("jit_debug_arm/", ARCH_ARM));
MemoryOfflineParts* memory = new MemoryOfflineParts;
AddMemory(dir_ + "descriptor.data", memory);
@@ -873,7 +888,7 @@
// fallback to iterating over the cies/fdes and ignore the eh_frame_hdr.
// No .gnu_debugdata section in the elf file, so no symbols.
TEST_F(UnwindOfflineTest, bad_eh_frame_hdr_arm64) {
- Init("bad_eh_frame_hdr_arm64/", ARCH_ARM64);
+ ASSERT_NO_FATAL_FAILURE(Init("bad_eh_frame_hdr_arm64/", ARCH_ARM64));
Unwinder unwinder(128, maps_.get(), regs_.get(), process_memory_);
unwinder.Unwind();
@@ -902,7 +917,7 @@
// The elf has bad eh_frame unwind information for the pcs. If eh_frame
// is used first, the unwind will not match the expected output.
TEST_F(UnwindOfflineTest, debug_frame_first_x86) {
- Init("debug_frame_first_x86/", ARCH_X86);
+ ASSERT_NO_FATAL_FAILURE(Init("debug_frame_first_x86/", ARCH_X86));
Unwinder unwinder(128, maps_.get(), regs_.get(), process_memory_);
unwinder.Unwind();
@@ -930,7 +945,7 @@
// Make sure that a pc that is at the beginning of an fde unwinds correctly.
TEST_F(UnwindOfflineTest, eh_frame_hdr_begin_x86_64) {
- Init("eh_frame_hdr_begin_x86_64/", ARCH_X86_64);
+ ASSERT_NO_FATAL_FAILURE(Init("eh_frame_hdr_begin_x86_64/", ARCH_X86_64));
Unwinder unwinder(128, maps_.get(), regs_.get(), process_memory_);
unwinder.Unwind();
@@ -957,7 +972,7 @@
}
TEST_F(UnwindOfflineTest, art_quick_osr_stub_arm) {
- Init("art_quick_osr_stub_arm/", ARCH_ARM);
+ ASSERT_NO_FATAL_FAILURE(Init("art_quick_osr_stub_arm/", ARCH_ARM));
MemoryOfflineParts* memory = new MemoryOfflineParts;
AddMemory(dir_ + "descriptor.data", memory);
@@ -1072,7 +1087,7 @@
}
TEST_F(UnwindOfflineTest, jit_map_arm) {
- Init("jit_map_arm/", ARCH_ARM);
+ ASSERT_NO_FATAL_FAILURE(Init("jit_map_arm/", ARCH_ARM));
maps_->Add(0xd025c788, 0xd025c9f0, 0, PROT_READ | PROT_EXEC | MAPS_FLAGS_JIT_SYMFILE_MAP,
"jit_map0.so", 0);
@@ -1111,4 +1126,78 @@
EXPECT_EQ(0xcd4ff960U, unwinder.frames()[5].sp);
}
+TEST_F(UnwindOfflineTest, offset_arm) {
+ ASSERT_NO_FATAL_FAILURE(Init("offset_arm/", ARCH_ARM));
+
+ Unwinder unwinder(128, maps_.get(), regs_.get(), process_memory_);
+ unwinder.Unwind();
+
+ std::string frame_info(DumpFrames(unwinder));
+ ASSERT_EQ(19U, unwinder.NumFrames()) << "Unwind:\n" << frame_info;
+ EXPECT_EQ(
+ " #00 pc 0032bfa0 (offset 0x42000) libunwindstack_test (SignalInnerFunction+40)\n"
+ " #01 pc 0032bfeb (offset 0x42000) libunwindstack_test (SignalMiddleFunction+2)\n"
+ " #02 pc 0032bff3 (offset 0x42000) libunwindstack_test (SignalOuterFunction+2)\n"
+ " #03 pc 0032fed3 (offset 0x42000) libunwindstack_test "
+ "(_ZN11unwindstackL19SignalCallerHandlerEiP7siginfoPv+26)\n"
+ " #04 pc 00026528 (offset 0x25000) libc.so\n"
+ " #05 pc 00000000 <unknown>\n"
+ " #06 pc 0032c2d9 (offset 0x42000) libunwindstack_test (InnerFunction+736)\n"
+ " #07 pc 0032cc4f (offset 0x42000) libunwindstack_test (MiddleFunction+42)\n"
+ " #08 pc 0032cc81 (offset 0x42000) libunwindstack_test (OuterFunction+42)\n"
+ " #09 pc 0032e547 (offset 0x42000) libunwindstack_test "
+ "(_ZN11unwindstackL19RemoteThroughSignalEij+270)\n"
+ " #10 pc 0032ed99 (offset 0x42000) libunwindstack_test "
+ "(_ZN11unwindstack55UnwindTest_remote_through_signal_with_invalid_func_Test8TestBodyEv+16)\n"
+ " #11 pc 00354453 (offset 0x42000) libunwindstack_test (_ZN7testing4Test3RunEv+154)\n"
+ " #12 pc 00354de7 (offset 0x42000) libunwindstack_test (_ZN7testing8TestInfo3RunEv+194)\n"
+ " #13 pc 00355105 (offset 0x42000) libunwindstack_test (_ZN7testing8TestCase3RunEv+180)\n"
+ " #14 pc 0035a215 (offset 0x42000) libunwindstack_test "
+ "(_ZN7testing8internal12UnitTestImpl11RunAllTestsEv+664)\n"
+ " #15 pc 00359f4f (offset 0x42000) libunwindstack_test (_ZN7testing8UnitTest3RunEv+110)\n"
+ " #16 pc 0034d3db (offset 0x42000) libunwindstack_test (main+38)\n"
+ " #17 pc 00092c0d (offset 0x25000) libc.so (__libc_init+48)\n"
+ " #18 pc 0004202f (offset 0x42000) libunwindstack_test (_start_main+38)\n",
+ frame_info);
+
+ EXPECT_EQ(0x2e55fa0U, unwinder.frames()[0].pc);
+ EXPECT_EQ(0xf43d2cccU, unwinder.frames()[0].sp);
+ EXPECT_EQ(0x2e55febU, unwinder.frames()[1].pc);
+ EXPECT_EQ(0xf43d2ce0U, unwinder.frames()[1].sp);
+ EXPECT_EQ(0x2e55ff3U, unwinder.frames()[2].pc);
+ EXPECT_EQ(0xf43d2ce8U, unwinder.frames()[2].sp);
+ EXPECT_EQ(0x2e59ed3U, unwinder.frames()[3].pc);
+ EXPECT_EQ(0xf43d2cf0U, unwinder.frames()[3].sp);
+ EXPECT_EQ(0xf4136528U, unwinder.frames()[4].pc);
+ EXPECT_EQ(0xf43d2d10U, unwinder.frames()[4].sp);
+ EXPECT_EQ(0U, unwinder.frames()[5].pc);
+ EXPECT_EQ(0xffcc0ee0U, unwinder.frames()[5].sp);
+ EXPECT_EQ(0x2e562d9U, unwinder.frames()[6].pc);
+ EXPECT_EQ(0xffcc0ee0U, unwinder.frames()[6].sp);
+ EXPECT_EQ(0x2e56c4fU, unwinder.frames()[7].pc);
+ EXPECT_EQ(0xffcc1060U, unwinder.frames()[7].sp);
+ EXPECT_EQ(0x2e56c81U, unwinder.frames()[8].pc);
+ EXPECT_EQ(0xffcc1078U, unwinder.frames()[8].sp);
+ EXPECT_EQ(0x2e58547U, unwinder.frames()[9].pc);
+ EXPECT_EQ(0xffcc1090U, unwinder.frames()[9].sp);
+ EXPECT_EQ(0x2e58d99U, unwinder.frames()[10].pc);
+ EXPECT_EQ(0xffcc1438U, unwinder.frames()[10].sp);
+ EXPECT_EQ(0x2e7e453U, unwinder.frames()[11].pc);
+ EXPECT_EQ(0xffcc1448U, unwinder.frames()[11].sp);
+ EXPECT_EQ(0x2e7ede7U, unwinder.frames()[12].pc);
+ EXPECT_EQ(0xffcc1458U, unwinder.frames()[12].sp);
+ EXPECT_EQ(0x2e7f105U, unwinder.frames()[13].pc);
+ EXPECT_EQ(0xffcc1490U, unwinder.frames()[13].sp);
+ EXPECT_EQ(0x2e84215U, unwinder.frames()[14].pc);
+ EXPECT_EQ(0xffcc14c0U, unwinder.frames()[14].sp);
+ EXPECT_EQ(0x2e83f4fU, unwinder.frames()[15].pc);
+ EXPECT_EQ(0xffcc1510U, unwinder.frames()[15].sp);
+ EXPECT_EQ(0x2e773dbU, unwinder.frames()[16].pc);
+ EXPECT_EQ(0xffcc1528U, unwinder.frames()[16].sp);
+ EXPECT_EQ(0xf41a2c0dU, unwinder.frames()[17].pc);
+ EXPECT_EQ(0xffcc1540U, unwinder.frames()[17].sp);
+ EXPECT_EQ(0x2b6c02fU, unwinder.frames()[18].pc);
+ EXPECT_EQ(0xffcc1558U, unwinder.frames()[18].sp);
+}
+
} // namespace unwindstack
diff --git a/libunwindstack/tests/files/offline/offset_arm/libc.so b/libunwindstack/tests/files/offline/offset_arm/libc.so
new file mode 100644
index 0000000..9f5c8ca
--- /dev/null
+++ b/libunwindstack/tests/files/offline/offset_arm/libc.so
Binary files differ
diff --git a/libunwindstack/tests/files/offline/offset_arm/libunwindstack_test b/libunwindstack/tests/files/offline/offset_arm/libunwindstack_test
new file mode 100644
index 0000000..7a30bfa
--- /dev/null
+++ b/libunwindstack/tests/files/offline/offset_arm/libunwindstack_test
Binary files differ
diff --git a/libunwindstack/tests/files/offline/offset_arm/maps.txt b/libunwindstack/tests/files/offline/offset_arm/maps.txt
new file mode 100644
index 0000000..6224464
--- /dev/null
+++ b/libunwindstack/tests/files/offline/offset_arm/maps.txt
@@ -0,0 +1,2 @@
+2b6c000-2e92000 r-xp 42000 00:00 0 libunwindstack_test
+f4135000-f41a9000 r-xp 25000 00:00 0 libc.so
diff --git a/libunwindstack/tests/files/offline/offset_arm/regs.txt b/libunwindstack/tests/files/offline/offset_arm/regs.txt
new file mode 100644
index 0000000..1f4ac8f
--- /dev/null
+++ b/libunwindstack/tests/files/offline/offset_arm/regs.txt
@@ -0,0 +1,16 @@
+r0: 5
+r1: 5
+r2: 4
+r3: 1
+r4: 73804b6b
+r5: f3c9c000
+r6: 2ea09ac
+r7: 10624dd3
+r8: f41b5d8c
+r9: f3c9c000
+r10: 6f17
+r11: f3c94048
+ip: 2ea0807
+sp: f43d2ccc
+lr: 2e55fef
+pc: 2e55fa0
diff --git a/libunwindstack/tests/files/offline/offset_arm/stack0.data b/libunwindstack/tests/files/offline/offset_arm/stack0.data
new file mode 100644
index 0000000..23a9874
--- /dev/null
+++ b/libunwindstack/tests/files/offline/offset_arm/stack0.data
Binary files differ
diff --git a/libunwindstack/tests/files/offline/offset_arm/stack1.data b/libunwindstack/tests/files/offline/offset_arm/stack1.data
new file mode 100644
index 0000000..49bdd1e
--- /dev/null
+++ b/libunwindstack/tests/files/offline/offset_arm/stack1.data
Binary files differ
diff --git a/libunwindstack/tools/unwind_for_offline.cpp b/libunwindstack/tools/unwind_for_offline.cpp
index 74868d4..589731d 100644
--- a/libunwindstack/tools/unwind_for_offline.cpp
+++ b/libunwindstack/tools/unwind_for_offline.cpp
@@ -30,6 +30,7 @@
#include <memory>
#include <string>
#include <unordered_map>
+#include <utility>
#include <vector>
#include <unwindstack/Elf.h>
@@ -78,30 +79,44 @@
return true;
}
-bool SaveStack(pid_t pid, uint64_t sp_start, uint64_t sp_end) {
- std::unique_ptr<FILE, decltype(&fclose)> fp(fopen("stack.data", "w+"), &fclose);
- if (fp == nullptr) {
- printf("Failed to create stack.data.\n");
- return false;
- }
+bool SaveStack(pid_t pid, const std::vector<std::pair<uint64_t, uint64_t>>& stacks) {
+ for (size_t i = 0; i < stacks.size(); i++) {
+ std::string file_name;
+ if (stacks.size() != 1) {
+ file_name = "stack" + std::to_string(i) + ".data";
+ } else {
+ file_name = "stack.data";
+ }
- size_t bytes = fwrite(&sp_start, 1, sizeof(sp_start), fp.get());
- if (bytes != sizeof(sp_start)) {
- perror("Failed to write all data.");
- return false;
- }
+ // Do this first, so if it fails, we don't create the file.
+ uint64_t sp_start = stacks[i].first;
+ uint64_t sp_end = stacks[i].second;
+ std::vector<uint8_t> buffer(sp_end - sp_start);
+ auto process_memory = unwindstack::Memory::CreateProcessMemory(pid);
+ if (!process_memory->Read(sp_start, buffer.data(), buffer.size())) {
+ printf("Unable to read stack data.\n");
+ return false;
+ }
- std::vector<uint8_t> buffer(sp_end - sp_start);
- auto process_memory = unwindstack::Memory::CreateProcessMemory(pid);
- if (!process_memory->Read(sp_start, buffer.data(), buffer.size())) {
- printf("Unable to read stack data.\n");
- return false;
- }
+ printf("Saving the stack 0x%" PRIx64 "-0x%" PRIx64 "\n", sp_start, sp_end);
- bytes = fwrite(buffer.data(), 1, buffer.size(), fp.get());
- if (bytes != buffer.size()) {
- printf("Failed to write all stack data: stack size %zu, written %zu\n", buffer.size(), bytes);
- return 1;
+ std::unique_ptr<FILE, decltype(&fclose)> fp(fopen(file_name.c_str(), "w+"), &fclose);
+ if (fp == nullptr) {
+ printf("Failed to create stack.data.\n");
+ return false;
+ }
+
+ size_t bytes = fwrite(&sp_start, 1, sizeof(sp_start), fp.get());
+ if (bytes != sizeof(sp_start)) {
+ perror("Failed to write all data.");
+ return false;
+ }
+
+ bytes = fwrite(buffer.data(), 1, buffer.size(), fp.get());
+ if (bytes != buffer.size()) {
+ printf("Failed to write all stack data: stack size %zu, written %zu\n", buffer.size(), bytes);
+ return false;
+ }
}
return true;
@@ -110,17 +125,11 @@
bool CreateElfFromMemory(std::shared_ptr<unwindstack::Memory>& memory, map_info_t* info) {
std::string cur_name;
if (info->name.empty()) {
- cur_name = android::base::StringPrintf("anonymous:%" PRIx64, info->start);
+ cur_name = android::base::StringPrintf("anonymous_%" PRIx64, info->start);
} else {
- cur_name = basename(info->name.c_str());
- cur_name = android::base::StringPrintf("%s:%" PRIx64, basename(info->name.c_str()), info->start);
+ cur_name = android::base::StringPrintf("%s_%" PRIx64, basename(info->name.c_str()), info->start);
}
- std::unique_ptr<FILE, decltype(&fclose)> output(fopen(cur_name.c_str(), "w+"), &fclose);
- if (output == nullptr) {
- printf("Cannot create %s\n", cur_name.c_str());
- return false;
- }
std::vector<uint8_t> buffer(info->end - info->start);
// If this is a mapped in file, it might not be possible to read the entire
// map, so read all that is readable.
@@ -129,6 +138,13 @@
printf("Cannot read data from address %" PRIx64 " length %zu\n", info->start, buffer.size());
return false;
}
+
+ std::unique_ptr<FILE, decltype(&fclose)> output(fopen(cur_name.c_str(), "w+"), &fclose);
+ if (output == nullptr) {
+ printf("Cannot create %s\n", cur_name.c_str());
+ return false;
+ }
+
size_t bytes_written = fwrite(buffer.data(), 1, bytes, output.get());
if (bytes_written != bytes) {
printf("Failed to write all data to file: bytes read %zu, written %zu\n", bytes, bytes_written);
@@ -198,9 +214,21 @@
unwinder.Unwind();
std::unordered_map<uint64_t, map_info_t> maps_by_start;
- uint64_t last_sp;
+ std::vector<std::pair<uint64_t, uint64_t>> stacks;
+ uint64_t sp_map_start = 0;
+ unwindstack::MapInfo* map_info = maps.Find(sp);
+ if (map_info != nullptr) {
+ stacks.emplace_back(std::make_pair(sp, map_info->end));
+ sp_map_start = map_info->start;
+ }
+
for (auto frame : unwinder.frames()) {
- last_sp = frame.sp;
+ map_info = maps.Find(frame.sp);
+ if (map_info != nullptr && sp_map_start != map_info->start) {
+ stacks.emplace_back(std::make_pair(frame.sp, map_info->end));
+ sp_map_start = map_info->start;
+ }
+
if (maps_by_start.count(frame.map_start) == 0) {
auto info = &maps_by_start[frame.map_start];
info->start = frame.map_start;
@@ -211,7 +239,12 @@
// Try to create the elf from memory, this will handle cases where
// the data only exists in memory such as vdso data on x86.
if (!CreateElfFromMemory(process_memory, info)) {
- return 1;
+ printf("Ignoring map ");
+ if (!info->name.empty()) {
+ printf("%s\n", info->name.c_str());
+ } else {
+ printf("anonymous:%" PRIx64 "\n", info->start);
+ }
}
}
}
@@ -221,7 +254,7 @@
printf("%s\n", unwinder.FormatFrame(i).c_str());
}
- if (!SaveStack(pid, sp, last_sp)) {
+ if (!SaveStack(pid, stacks)) {
return 1;
}
diff --git a/rootdir/Android.mk b/rootdir/Android.mk
index f488ed5..3c9e5f3 100644
--- a/rootdir/Android.mk
+++ b/rootdir/Android.mk
@@ -147,13 +147,10 @@
bcp_md5 :=
bcp_dep :=
-# If BOARD_VNDK_VERSION is defined, append PLATFORM_VNDK_VERSION to base name.
+# Append PLATFORM_VNDK_VERSION to base name.
define append_vndk_version
$(strip \
- $(if $(BOARD_VNDK_VERSION), \
- $(basename $(1)).$(PLATFORM_VNDK_VERSION)$(suffix $(1)), \
- $(1) \
- ) \
+ $(basename $(1)).$(PLATFORM_VNDK_VERSION)$(suffix $(1)) \
)
endef
@@ -215,31 +212,46 @@
vndk_version_suffix :=
endef # update_and_install_ld_config
+
+#######################################
+# ld.config.txt selection variables
+#
+_enforce_vndk_at_runtime := false
+ifdef BOARD_VNDK_VERSION
+ ifneq ($(BOARD_VNDK_RUNTIME_DISABLE),true)
+ _enforce_vndk_at_runtime := true
+ endif
+endif
+
+_enforce_vndk_lite_at_runtime := false
+ifeq ($(_enforce_vndk_at_runtime),false)
+ ifeq ($(PRODUCT_TREBLE_LINKER_NAMESPACES)|$(SANITIZE_TARGET),true|)
+ _enforce_vndk_lite_at_runtime := true
+ endif
+endif
+
#######################################
# ld.config.txt
#
# For VNDK enforced devices that have defined BOARD_VNDK_VERSION, use
# "ld.config.txt" as a source file. This configuration includes strict VNDK
# run-time restrictions for vendor process.
+#
# Other treblized devices, that have not defined BOARD_VNDK_VERSION or that
# have set BOARD_VNDK_RUNTIME_DISABLE to true, use "ld.config.vndk_lite.txt"
# as a source file. This configuration does not have strict VNDK run-time
# restrictions.
+#
# If the device is not treblized, use "ld.config.legacy.txt" for legacy
# namespace configuration.
+#
include $(CLEAR_VARS)
LOCAL_MODULE := ld.config.txt
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
-_enforce_vndk_at_runtime := false
-ifdef BOARD_VNDK_VERSION
-ifneq ($(BOARD_VNDK_RUNTIME_DISABLE),true)
- _enforce_vndk_at_runtime := true
-endif
-endif
-
ifeq ($(_enforce_vndk_at_runtime),true)
+
# for VNDK enforced devices
LOCAL_MODULE_STEM := $(call append_vndk_version,$(LOCAL_MODULE))
include $(BUILD_SYSTEM)/base_rules.mk
@@ -248,37 +260,36 @@
$(LOCAL_BUILT_MODULE),\
$(PLATFORM_VNDK_VERSION)))
-else ifeq ($(PRODUCT_TREBLE_LINKER_NAMESPACES)|$(SANITIZE_TARGET),true|)
-# for treblized but VNDK non-enforced devices
-LOCAL_MODULE_STEM := $(call append_vndk_version,$(LOCAL_MODULE))
+else ifeq ($(_enforce_vndk_lite_at_runtime),true)
+
+# for treblized but VNDK lightly enforced devices
+LOCAL_MODULE_STEM := ld.config.vndk_lite.txt
include $(BUILD_SYSTEM)/base_rules.mk
$(eval $(call update_and_install_ld_config,\
$(LOCAL_PATH)/etc/ld.config.vndk_lite.txt,\
$(LOCAL_BUILT_MODULE),\
- $(if $(BOARD_VNDK_VERSION),$(PLATFORM_VNDK_VERSION)),\
+ $(PLATFORM_VNDK_VERSION),\
true))
else
+
# for legacy non-treblized devices
-LOCAL_SRC_FILES := etc/ld.config.legacy.txt
LOCAL_MODULE_STEM := $(LOCAL_MODULE)
+LOCAL_SRC_FILES := etc/ld.config.legacy.txt
include $(BUILD_PREBUILT)
-endif # if _enforce_vndk_at_runtime is true
+endif # ifeq ($(_enforce_vndk_at_runtime),true)
-_enforce_vndk_at_runtime :=
#######################################
-# ld.config.noenforce.txt
+# ld.config.vndk_lite.txt
#
-# This file is a temporary configuration file only for GSI. Originally GSI has
-# BOARD_VNDK_VERSION defined and has strict VNDK enforcing rule based on
-# "ld.config.txt". However for the devices, that have not defined
-# BOARD_VNDK_VERSION, GSI provides this configuration file which is based on
-# "ld.config.vndk_lite.txt".
-# Do not install this file for the devices other than GSI.
+# This module is only for GSI.
+#
+ifeq ($(_enforce_vndk_lite_at_runtime),false)
+
include $(CLEAR_VARS)
-LOCAL_MODULE := ld.config.noenforce.txt
+LOCAL_MODULE := ld.config.vndk_lite.txt
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
LOCAL_MODULE_STEM := $(LOCAL_MODULE)
@@ -289,6 +300,11 @@
$(PLATFORM_VNDK_VERSION),\
true))
+endif # ifeq ($(_enforce_vndk_lite_at_runtime),false)
+
+_enforce_vndk_at_runtime :=
+_enforce_vndk_lite_at_runtime :=
+
#######################################
# llndk.libraries.txt
include $(CLEAR_VARS)
diff --git a/rootdir/init.rc b/rootdir/init.rc
index d3504ad..197047d 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -419,6 +419,7 @@
mkdir /data/misc/radio 0770 system radio
mkdir /data/misc/sms 0770 system radio
mkdir /data/misc/carrierid 0770 system radio
+ mkdir /data/misc/apns 0770 system radio
mkdir /data/misc/zoneinfo 0775 system system
mkdir /data/misc/textclassifier 0771 system system
mkdir /data/misc/vpn 0770 system vpn
