Imported Genode release 11.11

base-codezero/src/core/platform_thread.cc

@@ -0,0 +1,104 @@
+/*
+ * \brief   Thread facility
+ * \author  Norman Feske
+ * \date    2009-10-02
+ */
+
+/*
+ * Copyright (C) 2009-2011 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/printf.h>
+#include <util/string.h>
+
+/* core includes */
+#include <platform_thread.h>
+
+/* Codezero includes */
+#include <codezero/syscalls.h>
+
+enum { verbose_thread_start = true };
+
+using namespace Genode;
+using namespace Codezero;
+
+
+void Platform_thread::set_cpu(unsigned int cpu_no)
+{
+	PDBG("not yet implemented");
+}
+
+
+int Platform_thread::start(void *ip, void *sp, unsigned int cpu_no)
+{
+	Native_thread_id pager = _pager ? _pager->cap().tid() : -1;
+
+	/* setup thread context */
+	struct exregs_data exregs;
+	exregs.flags = 0;
+	exregs_set_stack(&exregs, (unsigned long)sp);
+	exregs_set_pc   (&exregs, (unsigned long)ip);
+	exregs_set_pager(&exregs, pager.tid);
+	exregs_set_utcb (&exregs, _utcb);
+
+	int ret = l4_exchange_registers(&exregs, _tid);
+	if (ret < 0) {
+		printf("l4_exchange_registers returned ret=%d\n", ret);
+		return -2;
+	}
+
+	/* start execution */
+	struct task_ids ids = { _tid, _space_id, _tid };
+	ret = l4_thread_control(THREAD_RUN, &ids);
+	if (ret < 0) {
+		printf("Error: l4_thread_control(THREAD_RUN) returned %d\n", ret);
+		return -3;
+	}
+
+	if (verbose_thread_start)
+		printf("core started thread \"%s\" with ID %d inside space ID %d\n",
+		       _name, _tid, _space_id);
+	return 0;
+}
+
+
+void Platform_thread::pause()
+{
+	PDBG("not implemented");
+}
+
+
+void Platform_thread::resume()
+{
+	PDBG("not implemented");
+}
+
+
+int Platform_thread::state(Thread_state *state_dst)
+{
+	PDBG("not implemented");
+	return -1;
+}
+
+
+void Platform_thread::cancel_blocking()
+{
+	PDBG("not implemented");
+}
+
+
+Platform_thread::Platform_thread(const char *name, unsigned, int thread_id)
+: _tid(-1)
+{
+	strncpy(_name, name, sizeof(_name));
+}
+
+
+Platform_thread::~Platform_thread()
+{
+	PDBG("not implemented");
+}