1/*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#ifndef INT_SYSCALL_HOOKS_H
17#define INT_SYSCALL_HOOKS_H
18
19#include <features.h>
20#include <stddef.h>
21
22extern hidden volatile const char *g_syscall_hooks_table __attribute__((aligned(8)));
23extern hidden volatile void *g_syscall_hooks_entry __attribute__((aligned(8)));
24
25static inline int is_syscall_hooked(long n)
26{
27	return g_syscall_hooks_table != NULL && g_syscall_hooks_table[n] != 0;
28}
29
30static inline long __syscall_hooks_entry0(long n)
31{
32	return ((long (*)(long))g_syscall_hooks_entry)(n);
33}
34
35static inline long __syscall_hooks_entry1(long n, long a)
36{
37	return ((long (*)(long, long))g_syscall_hooks_entry)(n, a);
38}
39
40static inline long __syscall_hooks_entry2(long n, long a, long b)
41{
42	return ((long (*)(long, long, long))g_syscall_hooks_entry)(n, a, b);
43}
44
45static inline long __syscall_hooks_entry3(long n, long a, long b, long c)
46{
47	return ((long (*)(long, long, long, long))g_syscall_hooks_entry)(n, a, b, c);
48}
49
50static inline long __syscall_hooks_entry4(long n, long a, long b, long c, long d)
51{
52	return ((long (*)(long, long, long, long, long))g_syscall_hooks_entry)(n, a, b, c, d);
53}
54
55static inline long __syscall_hooks_entry5(long n, long a, long b, long c, long d, long e)
56{
57	return ((long (*)(long, long, long, long, long, long))g_syscall_hooks_entry)(n, a, b, c, d, e);
58}
59
60static inline long __syscall_hooks_entry6(long n, long a, long b, long c, long d, long e, long f)
61{
62	return ((long (*)(long, long, long, long, long, long, long))g_syscall_hooks_entry)(n, a, b, c, d, e, f);
63}
64#endif