Use PLOG rather than LOG strerror(errno).

Test: builds
Change-Id: I75c3311ce00fccc79b8efc198ce69ffed96e805a

system/common/reactor.cc

@@ -170,7 +170,7 @@ void Reactor::Unregister(Reactor::Reactable* reactable) {
     if (result == -1 && errno == ENOENT) {
       LOG(INFO) << __func__ << ": reactable is invalid or unregistered";
     } else if (result == -1) {
-      LOG(FATAL) << __func__ << ": failed: " << strerror(errno);
+      PLOG(FATAL) << __func__ << ": failed";
     }
     // If we are unregistering during the callback event from this reactable, we delete it after the callback is executed.
     // reactable->is_executing_ is protected by reactable->lock_, so it's thread safe.

system/common/thread.cc

@@ -42,7 +42,7 @@ void Thread::run(Priority priority) {
     int rc;
     RUN_NO_INTR(rc = sched_setscheduler(linux_tid, SCHED_FIFO, &rt_params));
     if (rc != 0) {
-      LOG(ERROR) << __func__ << ": unable to set SCHED_FIFO priority: " << strerror(errno);
+      PLOG(ERROR) << __func__ << ": unable to set SCHED_FIFO priority";
     }
   }
   reactor_.Run();

system/hci/src/hci_layer_linux.cc

@@ -203,12 +203,12 @@ void hci_initialize() {
   addr.hci_dev = hci_interface;
   addr.hci_channel = HCI_CHANNEL_USER;
   if (bind(fd, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
-    LOG(FATAL) << "socket bind error " << strerror(errno);
+    PLOG(FATAL) << "socket bind error";
   }
 
   int sv[2];
   if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv) < 0) {
-    LOG(FATAL) << "socketpair failed: " << strerror(errno);
+    PLOG(FATAL) << "socketpair failed";
   }
 
   reader_thread_ctrl_fd = sv[0];
@@ -274,7 +274,7 @@ void hci_transmit(BT_HDR* packet) {
 
   if (ret != packet->len + 1) LOG(ERROR) << "Should have send whole packet";
 
-  if (ret == -1) LOG(FATAL) << strerror(errno);
+  if (ret == -1) PLOG(FATAL) << "write failed";
 }
 
 static int wait_hcidev(void) {
@@ -288,7 +288,7 @@ static int wait_hcidev(void) {
 
   fd = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
   if (fd < 0) {
-    LOG(ERROR) << "Bluetooth socket error: %s" << strerror(errno);
+    PLOG(ERROR) << "Bluetooth socket error";
     return -1;
   }
 
@@ -298,7 +298,7 @@ static int wait_hcidev(void) {
   addr.hci_channel = HCI_CHANNEL_CONTROL;
 
   if (bind(fd, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
-    LOG(ERROR) << "HCI Channel Control: " << strerror(errno);
+    PLOG(ERROR) << "HCI Channel Control";
     close(fd);
     return -1;
   }
@@ -314,7 +314,7 @@ static int wait_hcidev(void) {
   ssize_t wrote;
   OSI_NO_INTR(wrote = write(fd, &ev, 6));
   if (wrote != 6) {
-    LOG(ERROR) << "Unable to write mgmt command: " << strerror(errno);
+    PLOG(ERROR) << "Unable to write mgmt command";
     ret = -1;
     goto end;
   }
@@ -323,7 +323,7 @@ static int wait_hcidev(void) {
     int n;
     OSI_NO_INTR(n = poll(fds, 1, MGMT_EV_POLL_TIMEOUT));
     if (n == -1) {
-      LOG(ERROR) << "Poll error: " << strerror(errno);
+      PLOG(ERROR) << "Poll error";
       ret = -1;
       break;
     } else if (n == 0) {
@@ -335,7 +335,7 @@ static int wait_hcidev(void) {
     if (fds[0].revents & POLLIN) {
       OSI_NO_INTR(n = read(fd, &ev, sizeof(struct mgmt_pkt)));
       if (n < 0) {
-        LOG(ERROR) << "Error reading control channel: " << strerror(errno);
+        PLOG(ERROR) << "Error reading control channel";
         ret = -1;
         break;
       }

system/service/ipc/ipc_handler_linux.cc

@@ -89,7 +89,7 @@ bool IPCHandlerLinux::Run() {
             sizeof(address.sun_path) - 1);
     if (bind(server_socket.get(), (struct sockaddr*)&address, sizeof(address)) <
         0) {
-      LOG(ERROR) << "Failed to bind IPC socket to address: " << strerror(errno);
+      PLOG(ERROR) << "Failed to bind IPC socket to address";
       return false;
     }
 
@@ -141,7 +141,7 @@ void IPCHandlerLinux::StartListeningOnThread() {
 
   int status = listen(socket_.get(), SOMAXCONN);
   if (status < 0) {
-    LOG(ERROR) << "Failed to listen on domain socket: " << strerror(errno);
+    PLOG(ERROR) << "Failed to listen on domain socket";
     origin_task_runner_->PostTask(
         FROM_HERE, base::Bind(&IPCHandlerLinux::ShutDownOnOriginThread, this));
     return;
@@ -158,7 +158,7 @@ void IPCHandlerLinux::StartListeningOnThread() {
   while (keep_running_.load()) {
     int client_socket = accept4(socket_.get(), nullptr, nullptr, SOCK_NONBLOCK);
     if (client_socket < 0) {
-      LOG(ERROR) << "Failed to accept client connection: " << strerror(errno);
+      PLOG(ERROR) << "Failed to accept client connection";
       continue;
     }