Index: uspace/lib/c/generic/shutdown.c
===================================================================
--- uspace/lib/c/generic/shutdown.c	(revision 77a0119213839c7dd3edafceec905bf0e9a93e79)
+++ uspace/lib/c/generic/shutdown.c	(revision 77a0119213839c7dd3edafceec905bf0e9a93e79)
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2025 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libc
+ * @{
+ */
+/** @file
+ */
+
+#include <libc.h>
+#include <shutdown.h>
+
+/** Reboot the system. */
+void sys_reboot(void)
+{
+	(void) __SYSCALL0(SYS_REBOOT);
+}
+
+/** @}
+ */
Index: uspace/lib/c/include/shutdown.h
===================================================================
--- uspace/lib/c/include/shutdown.h	(revision 77a0119213839c7dd3edafceec905bf0e9a93e79)
+++ uspace/lib/c/include/shutdown.h	(revision 77a0119213839c7dd3edafceec905bf0e9a93e79)
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2025 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef _LIBC_SHUTDOWN_H_
+#define _LIBC_SHUTDOWN_H_
+
+extern void sys_reboot(void);
+
+#endif
+
+/** @}
+ */
Index: uspace/lib/c/meson.build
===================================================================
--- uspace/lib/c/meson.build	(revision 32254d6ae36aa180fa53338ca60684a9c87d7947)
+++ uspace/lib/c/meson.build	(revision 77a0119213839c7dd3edafceec905bf0e9a93e79)
@@ -1,4 +1,4 @@
 #
-# Copyright (c) 2024 Jiri Svoboda
+# Copyright (c) 2025 Jiri Svoboda
 # Copyright (c) 2005 Martin Decky
 # Copyright (c) 2007 Jakub Jermar
@@ -122,4 +122,5 @@
 	'generic/malloc.c',
 	'generic/rndgen.c',
+	'generic/shutdown.c',
 	'generic/stdio/scanf.c',
 	'generic/stdio/sprintf.c',