Imported Genode release 11.11

base-linux/src/core/thread_linux.cc

@@ -0,0 +1,55 @@
+/*
+ * \brief  Implementation of the core-internal Thread API via Linux threads
+ * \author Norman Feske
+ * \date   2006-06-13
+ */
+
+/*
+ * Copyright (C) 2006-2011 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+/* Genode includes */
+#include <base/thread.h>
+#include <base/sleep.h>
+
+/* Linux syscall bindings */
+#include <linux_syscalls.h>
+
+using namespace Genode;
+
+
+static void empty_signal_handler(int) { }
+
+
+static void thread_start(void *)
+{
+	/*
+	 * Set signal handler such that canceled system calls get not
+	 * transparently retried after a signal gets received.
+	 */
+	lx_sigaction(LX_SIGUSR1, empty_signal_handler);
+
+	Thread_base::myself()->entry();
+	sleep_forever();
+}
+
+
+void Thread_base::_init_platform_thread() { }
+
+
+void Thread_base::_deinit_platform_thread() { }
+
+
+void Thread_base::start()
+{
+	/* align initial stack to 16 byte boundary */
+	void *thread_sp = (void *)((addr_t)(_context->stack) & ~0xf);
+	_tid.tid = lx_create_thread(thread_start, thread_sp, this);
+	_tid.pid = lx_getpid();
+}
+
+
+void Thread_base::cancel_blocking() { }