Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
syscall.h
Go to the documentation of this file.
1 /*
2  * Syscall support for the Hexagon architecture
3  *
4  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 and
8  * only version 2 as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18  * 02110-1301, USA.
19  */
20 
21 #ifndef _ASM_HEXAGON_SYSCALL_H
22 #define _ASM_HEXAGON_SYSCALL_H
23 
24 typedef long (*syscall_fn)(unsigned long, unsigned long,
25  unsigned long, unsigned long,
26  unsigned long, unsigned long);
27 
28 asmlinkage int sys_execve(char __user *ufilename, char __user * __user *argv,
29  char __user * __user *envp);
30 asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
31  unsigned long parent_tidp, unsigned long child_tidp);
32 
33 #define sys_execve sys_execve
34 #define sys_clone sys_clone
35 
36 #include <asm-generic/syscalls.h>
37 
38 extern void *sys_call_table[];
39 
40 static inline long syscall_get_nr(struct task_struct *task,
41  struct pt_regs *regs)
42 {
43  return regs->r06;
44 }
45 
46 static inline void syscall_get_arguments(struct task_struct *task,
47  struct pt_regs *regs,
48  unsigned int i, unsigned int n,
49  unsigned long *args)
50 {
51  BUG_ON(i + n > 6);
52  memcpy(args, &(&regs->r00)[i], n * sizeof(args[0]));
53 }
54 #endif