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1f51eb3a88
This backports the following upstream commits all as one patch:54f5de7099ecc1a899371a0ef85f84f106af4e90097eed1038935874141d0ec62d2909c4caa778152ea1d13f64570dcf2c15564b3bffc60067bd8a55f8b72560968c7b49b3ec9206de95b12c6a10161d05d72faa6dbb52d66940e77414e0aaaa65607373Backport done by Greg Kroah-Hartman. Only minor tweaks were needed. Cc: David S. Miller <davem@davemloft.net> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
/*
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* arch/xtensa/kernel/syscall.c
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2001 - 2005 Tensilica Inc.
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* Copyright (C) 2000 Silicon Graphics, Inc.
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* Copyright (C) 1995 - 2000 by Ralf Baechle
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*
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* Joe Taylor <joe@tensilica.com, joetylr@yahoo.com>
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* Marc Gauthier <marc@tensilica.com, marc@alumni.uwaterloo.ca>
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* Chris Zankel <chris@zankel.net>
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* Kevin Chea
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*
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*/
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#include <asm/uaccess.h>
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#include <asm/syscall.h>
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#include <asm/unistd.h>
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#include <linux/linkage.h>
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#include <linux/stringify.h>
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#include <linux/errno.h>
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#include <linux/syscalls.h>
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#include <linux/file.h>
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#include <linux/fs.h>
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#include <linux/mman.h>
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#include <linux/shm.h>
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typedef void (*syscall_t)(void);
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syscall_t sys_call_table[__NR_syscall_count] /* FIXME __cacheline_aligned */= {
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[0 ... __NR_syscall_count - 1] = (syscall_t)&sys_ni_syscall,
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#undef __SYSCALL
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#define __SYSCALL(nr,symbol,nargs) [ nr ] = (syscall_t)symbol,
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#undef _XTENSA_UNISTD_H
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#undef __KERNEL_SYSCALLS__
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#include <asm/unistd.h>
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};
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/*
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* xtensa_pipe() is the normal C calling standard for creating a pipe. It's not
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* the way unix traditional does this, though.
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*/
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asmlinkage long xtensa_pipe(int __user *userfds)
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{
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int fd[2];
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int error;
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error = do_pipe_flags(fd, 0);
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if (!error) {
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if (copy_to_user(userfds, fd, 2 * sizeof(int)))
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error = -EFAULT;
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}
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return error;
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}
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asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg)
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{
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unsigned long ret;
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long err;
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err = do_shmat(shmid, shmaddr, shmflg, &ret);
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if (err)
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return err;
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return (long)ret;
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}
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asmlinkage long xtensa_fadvise64_64(int fd, int advice, unsigned long long offset, unsigned long long len)
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{
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return sys_fadvise64_64(fd, offset, len, advice);
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}
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