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1 | /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only) |
2 | * | |
3 | * lttng-syscalls.h | |
4 | * | |
5 | * LTTng syscall header. | |
6 | * | |
7 | * Copyright (C) 2021 Francis Deslauriers <francis.deslauriers@efficios.com> | |
8 | */ | |
9 | ||
ebcc64cd FD |
10 | #ifndef LTTNG_SYSCALLS_H |
11 | #define LTTNG_SYSCALLS_H | |
12 | ||
13 | #include <stddef.h> | |
14 | ||
e42c4f49 FD |
15 | #include <asm/ptrace.h> |
16 | ||
ebcc64cd | 17 | #include <lttng/events.h> |
e42c4f49 FD |
18 | #include <lttng/kernel-version.h> |
19 | ||
20 | ||
21 | /* | |
22 | * Forward declarations for old kernels. | |
23 | */ | |
24 | struct mmsghdr; | |
25 | struct rlimit64; | |
26 | struct oldold_utsname; | |
27 | struct old_utsname; | |
28 | struct sel_arg_struct; | |
29 | struct mmap_arg_struct; | |
30 | struct file_handle; | |
31 | struct user_msghdr; | |
32 | ||
33 | /* | |
34 | * Forward declaration for kernels >= 5.6 | |
35 | */ | |
36 | struct timex; | |
37 | struct timeval; | |
38 | struct itimerval; | |
39 | struct itimerspec; | |
40 | ||
41 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0)) | |
42 | typedef __kernel_old_time_t time_t; | |
43 | #endif | |
44 | ||
ebcc64cd FD |
45 | struct trace_syscall_entry { |
46 | void *event_func; | |
47 | const struct lttng_kernel_event_desc *desc; | |
48 | const struct lttng_kernel_event_field **fields; | |
49 | unsigned int nrargs; | |
50 | }; | |
51 | ||
52 | struct trace_syscall_table { | |
53 | const struct trace_syscall_entry *table; | |
54 | const size_t len; | |
55 | }; | |
e42c4f49 FD |
56 | |
57 | extern | |
58 | void syscall_entry_event_probe(void *__data, struct pt_regs *regs, long id); | |
59 | ||
60 | extern | |
61 | void syscall_exit_event_probe(void *__data, struct pt_regs *regs, long ret); | |
62 | ||
63 | extern | |
64 | void syscall_entry_event_notifier_probe(void *__data, struct pt_regs *regs, | |
65 | long id); | |
66 | extern | |
67 | void syscall_exit_event_notifier_probe(void *__data, struct pt_regs *regs, | |
68 | long ret); | |
69 | ||
ebcc64cd | 70 | #endif /* LTTNG_SYSCALLS_H */ |