blob: 998d7082cb1a2c2d3d7a0f3be5ee7f3238437f26 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/*
* AArch64- ILP32 specific system calls implementation
*
* Copyright (C) 2017 Cavium Inc.
* Author: Andrew Pinski <apinski@cavium.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define __SYSCALL_COMPAT
#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/msg.h>
#include <linux/export.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/syscalls.h>
#include <linux/compat.h>
#include <asm-generic/syscalls.h>
/*
* AARCH32 requires 4-page alignement for shared memory,
* but AARCH64 - only 1 page. This is the only difference
* between compat and native sys_shmat(). So ILP32 just pick
* AARCH64 version.
*/
#define compat_sys_shmat sys_shmat
/*
* ILP32 needs special handling for some ptrace requests.
*/
#define sys_ptrace compat_sys_ptrace
/*
* Using AARCH32 interface for syscalls that take 64-bit
* parameters in registers.
*/
#define compat_sys_fadvise64_64 compat_sys_fadvise64_64_wrapper
#define compat_sys_fallocate compat_sys_fallocate_wrapper
#define compat_sys_ftruncate64 compat_sys_ftruncate64_wrapper
#define compat_sys_pread64 compat_sys_pread64_wrapper
#define compat_sys_pwrite64 compat_sys_pwrite64_wrapper
#define compat_sys_readahead compat_sys_readahead_wrapper
#define compat_sys_sync_file_range2 compat_sys_sync_file_range2_wrapper
#define compat_sys_truncate64 compat_sys_truncate64_wrapper
#define sys_mmap2 compat_sys_mmap2_wrapper
/*
* Using AARCH32 interface for syscalls that take the size of
* struct statfs as an argument, as it's calculated differently
* in kernel and user spaces.
*/
#define compat_sys_fstatfs64 compat_sys_fstatfs64_wrapper
#define compat_sys_statfs64 compat_sys_statfs64_wrapper
/*
* Using custom wrapper for rt_sigreturn() to handle custom
* struct rt_sigframe.
*/
#define compat_sys_rt_sigreturn ilp32_sys_rt_sigreturn_wrapper
asmlinkage long compat_sys_fstatfs64_wrapper(void);
asmlinkage long compat_sys_statfs64_wrapper(void);
asmlinkage long compat_sys_fadvise64_64_wrapper(void);
asmlinkage long compat_sys_fallocate_wrapper(void);
asmlinkage long compat_sys_ftruncate64_wrapper(void);
asmlinkage long compat_sys_mmap2_wrapper(void);
asmlinkage long compat_sys_pread64_wrapper(void);
asmlinkage long compat_sys_pwrite64_wrapper(void);
asmlinkage long compat_sys_readahead_wrapper(void);
asmlinkage long compat_sys_sync_file_range2_wrapper(void);
asmlinkage long compat_sys_truncate64_wrapper(void);
asmlinkage long ilp32_sys_rt_sigreturn_wrapper(void);
#include <asm/syscall.h>
#undef __SYSCALL
#define __SYSCALL(nr, sym) [nr] = sym,
/*
* The sys_call_ilp32_table array must be 4K aligned to be accessible from
* kernel/entry.S.
*/
void *sys_call_ilp32_table[__NR_syscalls] __aligned(4096) = {
[0 ... __NR_syscalls - 1] = sys_ni_syscall,
#include <asm/unistd.h>
};
|
