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4fbf9cd1 | 1 | /* |
c0c0989a MJ |
2 | * SPDX-License-Identifier: LGPL-2.1-only |
3 | * | |
4fbf9cd1 MD |
4 | * Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
5 | * | |
6 | * This contains the core definitions for the Linux Trace Toolkit. | |
4fbf9cd1 MD |
7 | */ |
8 | ||
c0c0989a MJ |
9 | #ifndef _LTTNG_TRACER_CORE_H |
10 | #define _LTTNG_TRACER_CORE_H | |
11 | ||
b728d87e MD |
12 | #include <stddef.h> |
13 | #include <urcu/arch.h> | |
4fbf9cd1 | 14 | #include <urcu/list.h> |
44c72f10 | 15 | #include <lttng/ust-tracer.h> |
0466ac28 | 16 | #include <lttng/ringbuffer-context.h> |
44c72f10 | 17 | #include <usterr-signal-safe.h> |
4fbf9cd1 | 18 | |
735bef47 MJ |
19 | /* |
20 | * The longuest possible namespace proc path is with the cgroup ns | |
21 | * and the maximum theoretical linux pid of 536870912 : | |
22 | * | |
23 | * /proc/self/task/536870912/ns/cgroup | |
24 | */ | |
25 | #define LTTNG_PROC_NS_PATH_MAX 40 | |
26 | ||
f69fe5fb | 27 | struct lttng_ust_session; |
e7bc0ef6 | 28 | struct lttng_ust_channel_buffer; |
daacdbfc | 29 | struct lttng_ust_ctx_field; |
ce7352a2 | 30 | struct lttng_ust_lib_ring_buffer_ctx; |
daacdbfc | 31 | struct lttng_ust_ctx_value; |
e7bc0ef6 | 32 | struct lttng_ust_event_recorder; |
d7d45c0d | 33 | struct lttng_ust_event_notifier; |
a2e4d05e | 34 | struct lttng_ust_notification_ctx; |
4fbf9cd1 | 35 | |
1d18d519 MJ |
36 | int ust_lock(void) __attribute__ ((warn_unused_result)) |
37 | __attribute__((visibility("hidden"))); | |
ddabe860 | 38 | |
1d18d519 MJ |
39 | void ust_lock_nocheck(void) |
40 | __attribute__((visibility("hidden"))); | |
ddabe860 | 41 | |
1d18d519 MJ |
42 | void ust_unlock(void) |
43 | __attribute__((visibility("hidden"))); | |
8165c8da | 44 | |
1d18d519 MJ |
45 | void lttng_ust_fixup_tls(void) |
46 | __attribute__((visibility("hidden"))); | |
ddabe860 | 47 | |
1d18d519 MJ |
48 | void lttng_fixup_event_tls(void) |
49 | __attribute__((visibility("hidden"))); | |
ddabe860 | 50 | |
1d18d519 MJ |
51 | void lttng_fixup_vtid_tls(void) |
52 | __attribute__((visibility("hidden"))); | |
ddabe860 | 53 | |
1d18d519 MJ |
54 | void lttng_fixup_procname_tls(void) |
55 | __attribute__((visibility("hidden"))); | |
ddabe860 | 56 | |
1d18d519 MJ |
57 | void lttng_fixup_cgroup_ns_tls(void) |
58 | __attribute__((visibility("hidden"))); | |
ddabe860 | 59 | |
1d18d519 MJ |
60 | void lttng_fixup_ipc_ns_tls(void) |
61 | __attribute__((visibility("hidden"))); | |
ddabe860 | 62 | |
1d18d519 MJ |
63 | void lttng_fixup_net_ns_tls(void) |
64 | __attribute__((visibility("hidden"))); | |
ddabe860 | 65 | |
1d18d519 MJ |
66 | void lttng_fixup_time_ns_tls(void) |
67 | __attribute__((visibility("hidden"))); | |
ddabe860 | 68 | |
1d18d519 MJ |
69 | void lttng_fixup_uts_ns_tls(void) |
70 | __attribute__((visibility("hidden"))); | |
eddd8d5d | 71 | |
1d18d519 MJ |
72 | void lttng_ust_fixup_fd_tracker_tls(void) |
73 | __attribute__((visibility("hidden"))); | |
cdcd2ecd | 74 | |
1d18d519 MJ |
75 | const char *lttng_ust_obj_get_name(int id) |
76 | __attribute__((visibility("hidden"))); | |
74d81a6c | 77 | |
1d18d519 MJ |
78 | int lttng_get_notify_socket(void *owner) |
79 | __attribute__((visibility("hidden"))); | |
32ce8569 | 80 | |
1d18d519 MJ |
81 | char* lttng_ust_sockinfo_get_procname(void *owner) |
82 | __attribute__((visibility("hidden"))); | |
94be38e8 | 83 | |
1d18d519 MJ |
84 | void lttng_ust_sockinfo_session_enabled(void *owner) |
85 | __attribute__((visibility("hidden"))); | |
95c25348 | 86 | |
1d18d519 MJ |
87 | ssize_t lttng_ust_read(int fd, void *buf, size_t len) |
88 | __attribute__((visibility("hidden"))); | |
405be658 | 89 | |
4e48b5d2 | 90 | size_t lttng_ust_dummy_get_size(void *priv, size_t offset) |
1d18d519 | 91 | __attribute__((visibility("hidden"))); |
ddabe860 | 92 | |
4e48b5d2 | 93 | void lttng_ust_dummy_record(void *priv, struct lttng_ust_lib_ring_buffer_ctx *ctx, |
1d18d519 MJ |
94 | struct lttng_ust_channel_buffer *chan) |
95 | __attribute__((visibility("hidden"))); | |
96 | ||
4e48b5d2 | 97 | void lttng_ust_dummy_get_value(void *priv, struct lttng_ust_ctx_value *value) |
1d18d519 | 98 | __attribute__((visibility("hidden"))); |
ce7352a2 | 99 | |
cab88ff8 | 100 | void lttng_event_notifier_notification_send( |
d7d45c0d | 101 | struct lttng_ust_event_notifier *event_notifier, |
a2e4d05e | 102 | const char *stack_data, |
1d18d519 MJ |
103 | struct lttng_ust_notification_ctx *notif_ctx) |
104 | __attribute__((visibility("hidden"))); | |
cab88ff8 | 105 | |
1d18d519 MJ |
106 | struct lttng_counter_transport *lttng_counter_transport_find(const char *name) |
107 | __attribute__((visibility("hidden"))); | |
ddabe860 | 108 | |
1d18d519 MJ |
109 | void lttng_counter_transport_register(struct lttng_counter_transport *transport) |
110 | __attribute__((visibility("hidden"))); | |
ddabe860 | 111 | |
1d18d519 MJ |
112 | void lttng_counter_transport_unregister(struct lttng_counter_transport *transport) |
113 | __attribute__((visibility("hidden"))); | |
23d128de | 114 | |
eeef0055 | 115 | #ifdef HAVE_LINUX_PERF_EVENT_H |
1d18d519 MJ |
116 | void lttng_ust_fixup_perf_counter_tls(void) |
117 | __attribute__((visibility("hidden"))); | |
ddabe860 | 118 | |
1d18d519 MJ |
119 | void lttng_perf_lock(void) |
120 | __attribute__((visibility("hidden"))); | |
ddabe860 | 121 | |
1d18d519 MJ |
122 | void lttng_perf_unlock(void) |
123 | __attribute__((visibility("hidden"))); | |
eeef0055 | 124 | #else /* #ifdef HAVE_LINUX_PERF_EVENT_H */ |
20142124 MD |
125 | static inline |
126 | void lttng_ust_fixup_perf_counter_tls(void) | |
127 | { | |
128 | } | |
129 | static inline | |
130 | void lttng_perf_lock(void) | |
131 | { | |
132 | } | |
133 | static inline | |
134 | void lttng_perf_unlock(void) | |
135 | { | |
136 | } | |
eeef0055 | 137 | #endif /* #else #ifdef HAVE_LINUX_PERF_EVENT_H */ |
20142124 | 138 | |
7dd08bec | 139 | #endif /* _LTTNG_TRACER_CORE_H */ |