1 /* 2 * arch/xtensa/kernel/syscall.c 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 2001 - 2005 Tensilica Inc. 9 * Copyright (C) 2000 Silicon Graphics, Inc. 10 * Copyright (C) 1995 - 2000 by Ralf Baechle 11 * 12 * Joe Taylor <joe@tensilica.com, joetylr@yahoo.com> 13 * Marc Gauthier <marc@tensilica.com, marc@alumni.uwaterloo.ca> 14 * Chris Zankel <chris@zankel.net> 15 * Kevin Chea 16 * 17 */ 18 #include <asm/uaccess.h> 19 #include <asm/syscall.h> 20 #include <asm/unistd.h> 21 #include <linux/linkage.h> 22 #include <linux/stringify.h> 23 #include <linux/errno.h> 24 #include <linux/syscalls.h> 25 #include <linux/file.h> 26 #include <linux/fs.h> 27 #include <linux/mman.h> 28 #include <linux/shm.h> 29 30 typedef void (*syscall_t)(void); 31 32 syscall_t sys_call_table[__NR_syscall_count] /* FIXME __cacheline_aligned */= { 33 [0 ... __NR_syscall_count - 1] = (syscall_t)&sys_ni_syscall, 34 35 #define __SYSCALL(nr,symbol,nargs) [ nr ] = (syscall_t)symbol, 36 #include <uapi/asm/unistd.h> 37 }; 38 39 asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg) 40 { 41 unsigned long ret; 42 long err; 43 44 err = do_shmat(shmid, shmaddr, shmflg, &ret, SHMLBA); 45 if (err) 46 return err; 47 return (long)ret; 48 } 49 50 asmlinkage long xtensa_fadvise64_64(int fd, int advice, 51 unsigned long long offset, unsigned long long len) 52 { 53 return sys_fadvise64_64(fd, offset, len, advice); 54 } 55