1 /* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
3 * lttng-syscalls-exit-table.c
5 * LTTng syscall exit probes.
7 * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 * Copyright (C) 2021 Francis Deslauriers <francis.deslauriers@efficios.com>
11 #include <wrapper/tracepoint.h>
13 #include "lttng-syscalls.h"
16 #ifdef IA32_NR_syscalls
17 #define NR_compat_syscalls IA32_NR_syscalls
19 #define NR_compat_syscalls NR_syscalls
23 * Create LTTng tracepoint probes.
25 #define LTTNG_PACKAGE_BUILD
26 #define CREATE_TRACE_POINTS
27 #define TP_MODULE_NOINIT
28 #define TRACE_INCLUDE_PATH instrumentation/syscalls/headers
30 #define PARAMS(args...) args
37 #define sc_out(...) __VA_ARGS__
39 #define sc_inout(...) __VA_ARGS__
41 #define sc_exit(...) __VA_ARGS__
43 #define LTTNG_TRACEPOINT_TYPE_EXTERN
45 #include <lttng/events-reset.h>
47 /* Hijack probe callback for system call enter */
49 #define TP_PROBE_CB(_template) &syscall_exit_event_probe
50 #define SC_LTTNG_TRACEPOINT_EVENT(_name, _proto, _args, _fields) \
51 LTTNG_TRACEPOINT_EVENT(syscall_exit_##_name, PARAMS(_proto), PARAMS(_args), \
53 #define SC_LTTNG_TRACEPOINT_EVENT_CODE(_name, _proto, _args, _locvar, _code_pre, _fields, _code_post) \
54 LTTNG_TRACEPOINT_EVENT_CODE(syscall_exit_##_name, PARAMS(_proto), PARAMS(_args), \
55 PARAMS(_locvar), PARAMS(_code_pre), \
56 PARAMS(_fields), PARAMS(_code_post))
57 #define SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(_name, _fields) \
58 LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS(syscall_exit_##_name, PARAMS(_fields))
59 #define SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(_template, _name) \
60 LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS(syscall_exit_##_template, syscall_exit_##_name)
62 #define SC_LTTNG_TRACEPOINT_ENUM(_name, _values) \
63 LTTNG_TRACEPOINT_ENUM(_name, PARAMS(_values))
65 #define TRACE_SYSTEM syscall_exit_integers
66 #define TRACE_INCLUDE_FILE syscalls_integers
67 #include <instrumentation/syscalls/headers/syscalls_integers.h>
68 #undef TRACE_INCLUDE_FILE
70 #define TRACE_SYSTEM syscall_exit_pointers
71 #define TRACE_INCLUDE_FILE syscalls_pointers
72 #include <instrumentation/syscalls/headers/syscalls_pointers.h>
73 #undef TRACE_INCLUDE_FILE
75 #undef SC_LTTNG_TRACEPOINT_ENUM
76 #undef SC_LTTNG_TRACEPOINT_EVENT_CODE
77 #undef SC_LTTNG_TRACEPOINT_EVENT
78 #undef SC_LTTNG_TRACEPOINT_EVENT_CLASS_NOARGS
79 #undef SC_LTTNG_TRACEPOINT_EVENT_INSTANCE_NOARGS
81 #undef _TRACE_SYSCALLS_INTEGERS_H
82 #undef _TRACE_SYSCALLS_POINTERS_H
84 #define CREATE_SYSCALL_TABLE
89 #undef TRACE_SYSCALL_TABLE
90 #define TRACE_SYSCALL_TABLE(_template, _name, _nr, _nrargs) \
92 .event_func = __event_probe__syscall_exit_##_template, \
93 .nrargs = (_nrargs), \
94 .fields = __event_fields___syscall_exit_##_template, \
95 .desc = &__event_desc___syscall_exit_##_name, \
98 /* Event syscall enter tracing table */
99 static const struct trace_syscall_entry _sc_exit_table
[] = {
100 #include <instrumentation/syscalls/headers/syscalls_integers.h>
101 #include <instrumentation/syscalls/headers/syscalls_pointers.h>
104 const struct trace_syscall_table sc_exit_table
= {
105 .table
= _sc_exit_table
,
106 .len
= ARRAY_SIZE(_sc_exit_table
),
110 #undef CREATE_SYSCALL_TABLE