| | 1 | /* |
| | 2 | * SPDX-License-Identifier: LGPL-2.1-only |
| | 3 | * |
| | 4 | * Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| | 5 | * |
| | 6 | * This contains the core definitions for the Linux Trace Toolkit. |
| | 7 | */ |
| | 8 | |
| | 9 | #ifndef _LTTNG_TRACER_CORE_H |
| | 10 | #define _LTTNG_TRACER_CORE_H |
| | 11 | |
| | 12 | #include <stddef.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 <usterr-signal-safe.h> |
| | 18 | |
| | 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 | |
| | 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; |
| | 35 | |
| | 36 | __attribute__((visibility("hidden"))) |
| | 37 | int ust_lock(void) __attribute__ ((warn_unused_result)); |
| | 38 | |
| | 39 | __attribute__((visibility("hidden"))) |
| | 40 | void ust_lock_nocheck(void); |
| | 41 | |
| | 42 | __attribute__((visibility("hidden"))) |
| | 43 | void ust_unlock(void); |
| | 44 | |
| | 45 | __attribute__((visibility("hidden"))) |
| | 46 | void lttng_ust_fixup_tls(void); |
| | 47 | |
| | 48 | __attribute__((visibility("hidden"))) |
| | 49 | void lttng_fixup_event_tls(void); |
| | 50 | |
| | 51 | __attribute__((visibility("hidden"))) |
| | 52 | void lttng_fixup_vtid_tls(void); |
| | 53 | |
| | 54 | __attribute__((visibility("hidden"))) |
| | 55 | void lttng_fixup_procname_tls(void); |
| | 56 | |
| | 57 | __attribute__((visibility("hidden"))) |
| | 58 | void lttng_fixup_cgroup_ns_tls(void); |
| | 59 | |
| | 60 | __attribute__((visibility("hidden"))) |
| | 61 | void lttng_fixup_ipc_ns_tls(void); |
| | 62 | |
| | 63 | __attribute__((visibility("hidden"))) |
| | 64 | void lttng_fixup_net_ns_tls(void); |
| | 65 | |
| | 66 | __attribute__((visibility("hidden"))) |
| | 67 | void lttng_fixup_time_ns_tls(void); |
| | 68 | |
| | 69 | __attribute__((visibility("hidden"))) |
| | 70 | void lttng_fixup_uts_ns_tls(void); |
| | 71 | |
| | 72 | __attribute__((visibility("hidden"))) |
| | 73 | void lttng_ust_fixup_fd_tracker_tls(void); |
| | 74 | |
| | 75 | __attribute__((visibility("hidden"))) |
| | 76 | const char *lttng_ust_obj_get_name(int id); |
| | 77 | |
| | 78 | __attribute__((visibility("hidden"))) |
| | 79 | int lttng_get_notify_socket(void *owner); |
| | 80 | |
| | 81 | __attribute__((visibility("hidden"))) |
| | 82 | char* lttng_ust_sockinfo_get_procname(void *owner); |
| | 83 | |
| | 84 | __attribute__((visibility("hidden"))) |
| | 85 | void lttng_ust_sockinfo_session_enabled(void *owner); |
| | 86 | |
| | 87 | __attribute__((visibility("hidden"))) |
| | 88 | ssize_t lttng_ust_read(int fd, void *buf, size_t len); |
| | 89 | |
| | 90 | __attribute__((visibility("hidden"))) |
| | 91 | size_t lttng_ust_dummy_get_size(struct lttng_ust_ctx_field *field, size_t offset); |
| | 92 | |
| | 93 | __attribute__((visibility("hidden"))) |
| | 94 | void lttng_ust_dummy_record(struct lttng_ust_ctx_field *field, |
| | 95 | struct lttng_ust_lib_ring_buffer_ctx *ctx, |
| | 96 | struct lttng_ust_channel_buffer *chan); |
| | 97 | __attribute__((visibility("hidden"))) |
| | 98 | void lttng_ust_dummy_get_value(struct lttng_ust_ctx_field *field, |
| | 99 | struct lttng_ust_ctx_value *value); |
| | 100 | |
| | 101 | __attribute__((visibility("hidden"))) |
| | 102 | void lttng_event_notifier_notification_send( |
| | 103 | struct lttng_ust_event_notifier *event_notifier, |
| | 104 | const char *stack_data, |
| | 105 | struct lttng_ust_notification_ctx *notif_ctx); |
| | 106 | |
| | 107 | __attribute__((visibility("hidden"))) |
| | 108 | struct lttng_counter_transport *lttng_counter_transport_find(const char *name); |
| | 109 | |
| | 110 | __attribute__((visibility("hidden"))) |
| | 111 | void lttng_counter_transport_register(struct lttng_counter_transport *transport); |
| | 112 | |
| | 113 | __attribute__((visibility("hidden"))) |
| | 114 | void lttng_counter_transport_unregister(struct lttng_counter_transport *transport); |
| | 115 | |
| | 116 | #ifdef HAVE_LINUX_PERF_EVENT_H |
| | 117 | __attribute__((visibility("hidden"))) |
| | 118 | void lttng_ust_fixup_perf_counter_tls(void); |
| | 119 | |
| | 120 | __attribute__((visibility("hidden"))) |
| | 121 | void lttng_perf_lock(void); |
| | 122 | |
| | 123 | __attribute__((visibility("hidden"))) |
| | 124 | void lttng_perf_unlock(void); |
| | 125 | #else /* #ifdef HAVE_LINUX_PERF_EVENT_H */ |
| | 126 | static inline |
| | 127 | void lttng_ust_fixup_perf_counter_tls(void) |
| | 128 | { |
| | 129 | } |
| | 130 | static inline |
| | 131 | void lttng_perf_lock(void) |
| | 132 | { |
| | 133 | } |
| | 134 | static inline |
| | 135 | void lttng_perf_unlock(void) |
| | 136 | { |
| | 137 | } |
| | 138 | #endif /* #else #ifdef HAVE_LINUX_PERF_EVENT_H */ |
| | 139 | |
| | 140 | #endif /* _LTTNG_TRACER_CORE_H */ |
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