| 1 | /*
|
|---|
| 2 | * Copyright (C) 2005 Martin Decky
|
|---|
| 3 | * All rights reserved.
|
|---|
| 4 | *
|
|---|
| 5 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 6 | * modification, are permitted provided that the following conditions
|
|---|
| 7 | * are met:
|
|---|
| 8 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 13 | * documentation and/or other materials provided with the distribution.
|
|---|
| 14 | * - The name of the author may not be used to endorse or promote products
|
|---|
| 15 | * derived from this software without specific prior written permission.
|
|---|
| 16 | *
|
|---|
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|---|
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|---|
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|---|
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 | /**
|
|---|
| 30 | * @file syscall.c
|
|---|
| 31 | * @brief Syscall table and syscall wrappers.
|
|---|
| 32 | */
|
|---|
| 33 |
|
|---|
| 34 | #include <syscall/syscall.h>
|
|---|
| 35 | #include <proc/thread.h>
|
|---|
| 36 | #include <proc/task.h>
|
|---|
| 37 | #include <mm/as.h>
|
|---|
| 38 | #include <print.h>
|
|---|
| 39 | #include <putchar.h>
|
|---|
| 40 | #include <errno.h>
|
|---|
| 41 | #include <arch.h>
|
|---|
| 42 | #include <debug.h>
|
|---|
| 43 | #include <ipc/sysipc.h>
|
|---|
| 44 | #include <synch/futex.h>
|
|---|
| 45 | #include <ddi/ddi.h>
|
|---|
| 46 | #include <security/cap.h>
|
|---|
| 47 | #include <syscall/copy.h>
|
|---|
| 48 | #include <sysinfo/sysinfo.h>
|
|---|
| 49 |
|
|---|
| 50 | static __native sys_io(int fd, const void * buf, size_t count) {
|
|---|
| 51 |
|
|---|
| 52 | // TODO: buf sanity checks and a lot of other stuff ...
|
|---|
| 53 |
|
|---|
| 54 | size_t i;
|
|---|
| 55 |
|
|---|
| 56 | for (i = 0; i < count; i++)
|
|---|
| 57 | putchar(((char *) buf)[i]);
|
|---|
| 58 |
|
|---|
| 59 | return count;
|
|---|
| 60 | }
|
|---|
| 61 |
|
|---|
| 62 | /** Dispatch system call */
|
|---|
| 63 | __native syscall_handler(__native a1, __native a2, __native a3,
|
|---|
| 64 | __native a4, __native id)
|
|---|
| 65 | {
|
|---|
| 66 | if (id < SYSCALL_END)
|
|---|
| 67 | return syscall_table[id](a1,a2,a3,a4);
|
|---|
| 68 | else
|
|---|
| 69 | panic("Undefined syscall %d", id);
|
|---|
| 70 | }
|
|---|
| 71 |
|
|---|
| 72 | syshandler_t syscall_table[SYSCALL_END] = {
|
|---|
| 73 | sys_io,
|
|---|
| 74 | sys_tls_set,
|
|---|
| 75 |
|
|---|
| 76 | /* Thread and task related syscalls. */
|
|---|
| 77 | sys_thread_create,
|
|---|
| 78 | sys_thread_exit,
|
|---|
| 79 | sys_task_get_id,
|
|---|
| 80 |
|
|---|
| 81 | /* Synchronization related syscalls. */
|
|---|
| 82 | sys_futex_sleep_timeout,
|
|---|
| 83 | sys_futex_wakeup,
|
|---|
| 84 |
|
|---|
| 85 | /* Address space related syscalls. */
|
|---|
| 86 | sys_as_area_create,
|
|---|
| 87 | sys_as_area_resize,
|
|---|
| 88 | sys_as_area_destroy,
|
|---|
| 89 |
|
|---|
| 90 | /* IPC related syscalls. */
|
|---|
| 91 | sys_ipc_call_sync_fast,
|
|---|
| 92 | sys_ipc_call_sync,
|
|---|
| 93 | sys_ipc_call_async_fast,
|
|---|
| 94 | sys_ipc_call_async,
|
|---|
| 95 | sys_ipc_answer_fast,
|
|---|
| 96 | sys_ipc_answer,
|
|---|
| 97 | sys_ipc_forward_fast,
|
|---|
| 98 | sys_ipc_wait_for_call,
|
|---|
| 99 | sys_ipc_hangup,
|
|---|
| 100 | sys_ipc_register_irq,
|
|---|
| 101 | sys_ipc_unregister_irq,
|
|---|
| 102 |
|
|---|
| 103 | /* Capabilities related syscalls. */
|
|---|
| 104 | sys_cap_grant,
|
|---|
| 105 | sys_cap_revoke,
|
|---|
| 106 |
|
|---|
| 107 | /* DDI related syscalls. */
|
|---|
| 108 | sys_physmem_map,
|
|---|
| 109 | sys_iospace_enable,
|
|---|
| 110 | sys_preempt_control,
|
|---|
| 111 |
|
|---|
| 112 | /* Sysinfo syscalls */
|
|---|
| 113 | sys_sysinfo_valid,
|
|---|
| 114 | sys_sysinfo_value
|
|---|
| 115 | };
|
|---|
