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* Copyright (c) 2005 Martin Decky
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/** @addtogroup generic
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* @brief Syscall table and syscall wrappers.
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#include <syscall/syscall.h>
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#include <proc/thread.h>
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#include <proc/task.h>
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#include <proc/program.h>
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#include <ddi/device.h>
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#include <ipc/sysipc.h>
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#include <synch/futex.h>
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#include <synch/smc.h>
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#include <ipc/event.h>
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#include <security/cap.h>
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#include <sysinfo/sysinfo.h>
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#include <console/console.h>
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#include <udebug/udebug.h>
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/** Dispatch system call */
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unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3,
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unative_t a4, unative_t a5, unative_t a6, unative_t id)
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* Early check for undebugged tasks. We do not lock anything as this
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* test need not be precise in either way.
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debug = THREAD->udebug.active;
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udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false);
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if (id < SYSCALL_END) {
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rc = syscall_table[id](a1, a2, a3, a4, a5, a6);
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printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id);
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task_kill(TASK->taskid);
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if (THREAD->interrupted)
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udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true);
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* Stopping point needed for tasks that only invoke
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* non-blocking system calls. Not needed if the task
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* is not being debugged (it cannot block here).
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udebug_stoppable_begin();
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udebug_stoppable_end();
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syshandler_t syscall_table[SYSCALL_END] = {
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(syshandler_t) sys_klog,
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(syshandler_t) sys_tls_set,
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/* Thread and task related syscalls. */
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(syshandler_t) sys_thread_create,
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(syshandler_t) sys_thread_exit,
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(syshandler_t) sys_thread_get_id,
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(syshandler_t) sys_task_get_id,
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(syshandler_t) sys_task_set_name,
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(syshandler_t) sys_program_spawn_loader,
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/* Synchronization related syscalls. */
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(syshandler_t) sys_futex_sleep_timeout,
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(syshandler_t) sys_futex_wakeup,
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(syshandler_t) sys_smc_coherence,
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/* Address space related syscalls. */
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(syshandler_t) sys_as_area_create,
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(syshandler_t) sys_as_area_resize,
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(syshandler_t) sys_as_area_change_flags,
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(syshandler_t) sys_as_area_destroy,
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/* IPC related syscalls. */
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(syshandler_t) sys_ipc_call_sync_fast,
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(syshandler_t) sys_ipc_call_sync_slow,
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(syshandler_t) sys_ipc_call_async_fast,
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(syshandler_t) sys_ipc_call_async_slow,
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(syshandler_t) sys_ipc_answer_fast,
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(syshandler_t) sys_ipc_answer_slow,
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(syshandler_t) sys_ipc_forward_fast,
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(syshandler_t) sys_ipc_forward_slow,
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(syshandler_t) sys_ipc_wait_for_call,
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(syshandler_t) sys_ipc_hangup,
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(syshandler_t) sys_ipc_register_irq,
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(syshandler_t) sys_ipc_unregister_irq,
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/* Event notification syscalls. */
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(syshandler_t) sys_event_subscribe,
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/* Capabilities related syscalls. */
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(syshandler_t) sys_cap_grant,
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(syshandler_t) sys_cap_revoke,
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/* DDI related syscalls. */
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(syshandler_t) sys_device_assign_devno,
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(syshandler_t) sys_physmem_map,
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(syshandler_t) sys_iospace_enable,
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(syshandler_t) sys_preempt_control,
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/* Sysinfo syscalls */
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(syshandler_t) sys_sysinfo_valid,
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(syshandler_t) sys_sysinfo_value,
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(syshandler_t) sys_debug_enable_console,
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(syshandler_t) sys_debug_disable_console,
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(syshandler_t) sys_ipc_connect_kbox