Imported Genode release 11.11

base-codezero/src/base/thread/thread_start.cc

@@ -0,0 +1,79 @@
+/*
+ * \brief  NOVA-specific implementation of the Thread API
+ * \author Norman Feske
+ * \date   2010-01-19
+ */
+
+/*
+ * Copyright (C) 2010-2011 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/printf.h>
+#include <base/sleep.h>
+#include <base/env.h>
+
+/* Codezero includes */
+#include <codezero/syscalls.h>
+
+using namespace Genode;
+
+
+/**
+ * Entry point entered by new threads
+ */
+void Thread_base::_thread_start()
+{
+	Thread_base::myself()->_thread_bootstrap();
+	Thread_base::myself()->entry();
+	Genode::sleep_forever();
+}
+
+
+/*****************
+ ** Thread base **
+ *****************/
+
+void Thread_base::_init_platform_thread()
+{
+	Codezero::l4_mutex_init(utcb()->running_lock());
+	Codezero::l4_mutex_lock(utcb()->running_lock()); /* block on first mutex lock */
+}
+
+
+void Thread_base::_deinit_platform_thread()
+{
+	env()->cpu_session()->kill_thread(_thread_cap);
+}
+
+
+void Thread_base::start()
+{
+	/* create thread at core */
+	char buf[48];
+	name(buf, sizeof(buf));
+	_thread_cap = env()->cpu_session()->create_thread(buf);
+
+	/* assign thread to protection domain */
+	env()->pd_session()->bind_thread(_thread_cap);
+
+	/* create new pager object and assign it to the new thread */
+	Pager_capability pager_cap = env()->rm_session()->add_client(_thread_cap);
+	env()->cpu_session()->set_pager(_thread_cap, pager_cap);
+
+	/* register initial IP and SP at core */
+	addr_t thread_sp = (addr_t)&_context->stack[-4];
+	thread_sp &= ~0xf;  /* align initial stack to 16 byte boundary */
+	env()->cpu_session()->start(_thread_cap, (addr_t)_thread_start, thread_sp);
+}
+
+
+void Thread_base::cancel_blocking()
+{
+	Codezero::l4_mutex_unlock(utcb()->running_lock());
+	env()->cpu_session()->cancel_blocking(_thread_cap);
+}