| 0,0 → 1,164 |
|---|
| /* |
| * Copyright (C) 2005 Martin Decky |
| * 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 generic |
| * @{ |
| */ |
| |
| /** |
| * @file |
| * @brief Syscall table and syscall wrappers. |
| */ |
| |
| #include <syscall/syscall.h> |
| #include <proc/thread.h> |
| #include <proc/task.h> |
| #include <mm/as.h> |
| #include <print.h> |
| #include <putchar.h> |
| #include <errno.h> |
| #include <arch.h> |
| #include <debug.h> |
| #include <ipc/sysipc.h> |
| #include <synch/futex.h> |
| #include <ddi/ddi.h> |
| #include <security/cap.h> |
| #include <syscall/copy.h> |
| #include <sysinfo/sysinfo.h> |
| #include <console/console.h> |
| #include <console/klog.h> |
| |
| /** Print using kernel facility |
| * |
| * Some simulators can print only through kernel. Userspace can use |
| * this syscall to facilitate it. |
| */ |
| static unative_t sys_io(int fd, const void * buf, size_t count) |
| { |
| size_t i; |
| char *data; |
| int rc; |
| |
| if (count > PAGE_SIZE) |
| return ELIMIT; |
| |
| data = malloc(count, 0); |
| if (!data) |
| return ENOMEM; |
| |
| rc = copy_from_uspace(data, buf, count); |
| if (rc) { |
| free(data); |
| return rc; |
| } |
| |
| for (i = 0; i < count; i++) |
| putchar(data[i]); |
| free(data); |
| |
| return count; |
| } |
| |
| /** Tell kernel to get keyboard/console access again */ |
| static unative_t sys_debug_enable_console(void) |
| { |
| arch_grab_console(); |
| return 0; |
| } |
| |
| /** Dispatch system call */ |
| unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3, |
| unative_t a4, unative_t id) |
| { |
| unative_t rc; |
| |
| if (id < SYSCALL_END) |
| rc = syscall_table[id](a1,a2,a3,a4); |
| else { |
| klog_printf("TASK %lld: Unknown syscall id %d",TASK->taskid,id); |
| task_kill(TASK->taskid); |
| thread_exit(); |
| } |
| |
| if (THREAD->interrupted) |
| thread_exit(); |
| |
| return rc; |
| } |
| |
| syshandler_t syscall_table[SYSCALL_END] = { |
| sys_io, |
| sys_tls_set, |
| |
| /* Thread and task related syscalls. */ |
| sys_thread_create, |
| sys_thread_exit, |
| sys_task_get_id, |
| |
| /* Synchronization related syscalls. */ |
| sys_futex_sleep_timeout, |
| sys_futex_wakeup, |
| |
| /* Address space related syscalls. */ |
| sys_as_area_create, |
| sys_as_area_resize, |
| sys_as_area_destroy, |
| |
| /* IPC related syscalls. */ |
| sys_ipc_call_sync_fast, |
| sys_ipc_call_sync, |
| sys_ipc_call_async_fast, |
| sys_ipc_call_async, |
| sys_ipc_answer_fast, |
| sys_ipc_answer, |
| sys_ipc_forward_fast, |
| sys_ipc_wait_for_call, |
| sys_ipc_hangup, |
| sys_ipc_register_irq, |
| sys_ipc_unregister_irq, |
| |
| /* Capabilities related syscalls. */ |
| sys_cap_grant, |
| sys_cap_revoke, |
| |
| /* DDI related syscalls. */ |
| sys_physmem_map, |
| sys_iospace_enable, |
| sys_preempt_control, |
| |
| /* Sysinfo syscalls */ |
| sys_sysinfo_valid, |
| sys_sysinfo_value, |
| |
| /* Debug calls */ |
| sys_debug_enable_console |
| }; |
| |
| /** @} |
| */ |
| |