2 * SPDX-License-Identifier: LGPL-2.1-only
4 * Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 * This contains the core definitions for the Linux Trace Toolkit.
9 #ifndef _LTTNG_TRACER_CORE_H
10 #define _LTTNG_TRACER_CORE_H
13 #include <urcu/arch.h>
14 #include <urcu/list.h>
15 #include <lttng/ust-tracer.h>
16 #include <lttng/ringbuffer-context.h>
17 #include "common/logging.h"
20 * The longuest possible namespace proc path is with the cgroup ns
21 * and the maximum theoretical linux pid of 536870912 :
23 * /proc/self/task/536870912/ns/cgroup
25 #define LTTNG_PROC_NS_PATH_MAX 40
27 struct lttng_ust_session
;
28 struct lttng_ust_channel_buffer
;
29 struct lttng_ust_ctx_field
;
30 struct lttng_ust_lib_ring_buffer_ctx
;
31 struct lttng_ust_ctx_value
;
32 struct lttng_ust_event_recorder
;
33 struct lttng_ust_event_notifier
;
34 struct lttng_ust_notification_ctx
;
36 int ust_lock(void) __attribute__ ((warn_unused_result
))
37 __attribute__((visibility("hidden")));
39 void ust_lock_nocheck(void)
40 __attribute__((visibility("hidden")));
43 __attribute__((visibility("hidden")));
45 void lttng_ust_fixup_tls(void)
46 __attribute__((visibility("hidden")));
48 void lttng_fixup_event_tls(void)
49 __attribute__((visibility("hidden")));
51 void lttng_fixup_vtid_tls(void)
52 __attribute__((visibility("hidden")));
54 void lttng_fixup_procname_tls(void)
55 __attribute__((visibility("hidden")));
57 void lttng_fixup_cgroup_ns_tls(void)
58 __attribute__((visibility("hidden")));
60 void lttng_fixup_ipc_ns_tls(void)
61 __attribute__((visibility("hidden")));
63 void lttng_fixup_net_ns_tls(void)
64 __attribute__((visibility("hidden")));
66 void lttng_fixup_time_ns_tls(void)
67 __attribute__((visibility("hidden")));
69 void lttng_fixup_uts_ns_tls(void)
70 __attribute__((visibility("hidden")));
72 const char *lttng_ust_obj_get_name(int id
)
73 __attribute__((visibility("hidden")));
75 int lttng_get_notify_socket(void *owner
)
76 __attribute__((visibility("hidden")));
78 char* lttng_ust_sockinfo_get_procname(void *owner
)
79 __attribute__((visibility("hidden")));
81 void lttng_ust_sockinfo_session_enabled(void *owner
)
82 __attribute__((visibility("hidden")));
84 ssize_t
lttng_ust_read(int fd
, void *buf
, size_t len
)
85 __attribute__((visibility("hidden")));
87 size_t lttng_ust_dummy_get_size(void *priv
, size_t offset
)
88 __attribute__((visibility("hidden")));
90 void lttng_ust_dummy_record(void *priv
, struct lttng_ust_lib_ring_buffer_ctx
*ctx
,
91 struct lttng_ust_channel_buffer
*chan
)
92 __attribute__((visibility("hidden")));
94 void lttng_ust_dummy_get_value(void *priv
, struct lttng_ust_ctx_value
*value
)
95 __attribute__((visibility("hidden")));
97 void lttng_event_notifier_notification_send(
98 struct lttng_ust_event_notifier
*event_notifier
,
99 const char *stack_data
,
100 struct lttng_ust_notification_ctx
*notif_ctx
)
101 __attribute__((visibility("hidden")));
103 struct lttng_counter_transport
*lttng_counter_transport_find(const char *name
)
104 __attribute__((visibility("hidden")));
106 void lttng_counter_transport_register(struct lttng_counter_transport
*transport
)
107 __attribute__((visibility("hidden")));
109 void lttng_counter_transport_unregister(struct lttng_counter_transport
*transport
)
110 __attribute__((visibility("hidden")));
112 #ifdef HAVE_LINUX_PERF_EVENT_H
113 void lttng_ust_fixup_perf_counter_tls(void)
114 __attribute__((visibility("hidden")));
116 void lttng_perf_lock(void)
117 __attribute__((visibility("hidden")));
119 void lttng_perf_unlock(void)
120 __attribute__((visibility("hidden")));
121 #else /* #ifdef HAVE_LINUX_PERF_EVENT_H */
123 void lttng_ust_fixup_perf_counter_tls(void)
127 void lttng_perf_lock(void)
131 void lttng_perf_unlock(void)
134 #endif /* #else #ifdef HAVE_LINUX_PERF_EVENT_H */
136 #endif /* _LTTNG_TRACER_CORE_H */