2 * Copyright 2010 Tilera Corporation. All Rights Reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation, version 2.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
11 * NON INFRINGEMENT. See the GNU General Public License for
15 /* Adjust unistd.h to provide 32-bit numbers and functions. */
16 #define __SYSCALL_COMPAT
18 #include <linux/compat.h>
19 #include <linux/syscalls.h>
20 #include <linux/kdev_t.h>
22 #include <linux/fcntl.h>
23 #include <linux/uaccess.h>
24 #include <linux/signal.h>
25 #include <asm/syscalls.h>
28 * Syscalls that take 64-bit numbers traditionally take them in 32-bit
29 * "high" and "low" value parts on 32-bit architectures.
30 * In principle, one could imagine passing some register arguments as
31 * fully 64-bit on TILE-Gx in 32-bit mode, but it seems easier to
32 * adapt the usual convention.
35 long compat_sys_truncate64(char __user
*filename
, u32 dummy
, u32 low
, u32 high
)
37 return sys_truncate(filename
, ((loff_t
)high
<< 32) | low
);
40 long compat_sys_ftruncate64(unsigned int fd
, u32 dummy
, u32 low
, u32 high
)
42 return sys_ftruncate(fd
, ((loff_t
)high
<< 32) | low
);
45 long compat_sys_pread64(unsigned int fd
, char __user
*ubuf
, size_t count
,
46 u32 dummy
, u32 low
, u32 high
)
48 return sys_pread64(fd
, ubuf
, count
, ((loff_t
)high
<< 32) | low
);
51 long compat_sys_pwrite64(unsigned int fd
, char __user
*ubuf
, size_t count
,
52 u32 dummy
, u32 low
, u32 high
)
54 return sys_pwrite64(fd
, ubuf
, count
, ((loff_t
)high
<< 32) | low
);
57 long compat_sys_lookup_dcookie(u32 low
, u32 high
, char __user
*buf
, size_t len
)
59 return sys_lookup_dcookie(((loff_t
)high
<< 32) | low
, buf
, len
);
62 long compat_sys_sync_file_range2(int fd
, unsigned int flags
,
63 u32 offset_lo
, u32 offset_hi
,
64 u32 nbytes_lo
, u32 nbytes_hi
)
66 return sys_sync_file_range(fd
, ((loff_t
)offset_hi
<< 32) | offset_lo
,
67 ((loff_t
)nbytes_hi
<< 32) | nbytes_lo
,
71 long compat_sys_fallocate(int fd
, int mode
,
72 u32 offset_lo
, u32 offset_hi
,
73 u32 len_lo
, u32 len_hi
)
75 return sys_fallocate(fd
, mode
, ((loff_t
)offset_hi
<< 32) | offset_lo
,
76 ((loff_t
)len_hi
<< 32) | len_lo
);
79 /* Provide the compat syscall number to call mapping. */
81 #define __SYSCALL(nr, call) [nr] = (call),
83 /* See comments in sys.c */
84 #define compat_sys_fadvise64_64 sys32_fadvise64_64
85 #define compat_sys_readahead sys32_readahead
87 /* Call the assembly trampolines where necessary. */
88 #define compat_sys_rt_sigreturn _compat_sys_rt_sigreturn
89 #define sys_clone _sys_clone
92 * Note that we can't include <linux/unistd.h> here since the header
93 * guard will defeat us; <asm/unistd.h> checks for __SYSCALL as well.
95 void *compat_sys_call_table
[__NR_syscalls
] = {
96 [0 ... __NR_syscalls
-1] = sys_ni_syscall
,
97 #include <asm/unistd.h>
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