*
* (C) Copyright 2010-2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * Dual LGPL v2.1/GPL v2 license.
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program
+ * for any purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
*/
#include <lttng/bug.h>
*
* (C) Copyright 2010-2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * Dual LGPL v2.1/GPL v2 license.
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program
+ * for any purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ *
*/
#define BUILD_BUG_ON(condition) \
* Author:
* Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * Dual LGPL v2.1/GPL v2 license.
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program
+ * for any purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
*/
#define _UST_CMD(minor) (minor)
* Ring buffer configuration header. Note: after declaring the standard inline
* functions, clients should also include linux/ringbuffer/api.h.
*
- * Dual LGPL v2.1/GPL v2 license.
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program
+ * for any purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
*/
#include <errno.h>
+++ /dev/null
-/*
- * Copyright (C) 2009 Steven Rostedt <srostedt@redhat.com>
- * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- *
- * Trace files that want to automate creationg of all tracepoints defined
- * in their file should include this file. The following are macros that the
- * trace file may define:
- *
- * TRACEPOINT_PROVIDER defines the provider the tracepoint is for:
- * < [com_company_]project_[component_] >
- *
- * TRACEPOINT_INCLUDE_FILE if the file name is something other than
- * TRACEPOINT_PROVIDER.h. This macro may be defined to tell
- * define_trace.h what file to include. Note, leave off the ".h".
- *
- * TRACEPOINT_INCLUDE_PATH if the path is something other than within
- * the system's include/tracepoint/ path, then this macro can define
- * the path to use. This path is relative to tracepoint-event.h, or
- * to the include search path. Trick: Use a
- * #define TRACEPOINT_INCLUDE_PATH .
- * combined with -Ipath_to_header as compiler argument to allow
- * searching for a header within your project build tree.
- *
- * Note considering licensing:
- *
- * Including the tracepoint-event.h header without the
- * TRACEPOINT_CREATE_PROBES macro defined is fine within any application
- * source code, even for non-LGPL-compatible applications.
- *
- * However, TRACEPOINT_CREATE_PROBES should only be defined within
- * LGPL-compatible C files. This means that the tracepoint probe object
- * should be relinkable when distributed, either by providing it as a
- * dynamically linkable shared object (.so library), or by providing the
- * build scripts and object files required to relink the object if
- * statically linked.
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifdef TRACEPOINT_CREATE_PROBES
-
-/* Prevent recursion */
-#undef TRACEPOINT_CREATE_PROBES
-
-#ifndef __tp_stringify
-#define __tp_stringify_1(x...) #x
-#define __tp_stringify(x...) __tp_stringify_1(x)
-#endif
-
-#undef TRACEPOINT_EVENT
-#define TRACEPOINT_EVENT(provider, name, args, fields) \
- _DEFINE_TRACEPOINT(provider, name)
-
-#undef TRACEPOINT_EVENT_INSTANCE
-#define TRACEPOINT_EVENT_INSTANCE(provider, template, name, args) \
- _DEFINE_TRACEPOINT(provider, name)
-
-#undef TRACEPOINT_INCLUDE
-#undef __TRACEPOINT_INCLUDE
-
-#ifndef TRACEPOINT_INCLUDE_FILE
-# define TRACEPOINT_INCLUDE_FILE TRACEPOINT_PROVIDER
-# define UNDEF_TRACEPOINT_INCLUDE_FILE
-#endif
-
-#ifndef TRACEPOINT_INCLUDE_PATH
-# define __TRACEPOINT_INCLUDE(provider) <tracepoint/provider.h>
-# define UNDEF_TRACEPOINT_INCLUDE_PATH
-#else
-# define __TRACEPOINT_INCLUDE(provider) \
- __tp_stringify(TRACEPOINT_INCLUDE_PATH/provider.h)
-#endif
-
-# define TRACEPOINT_INCLUDE(provider) __TRACEPOINT_INCLUDE(provider)
-
-/* Let the trace headers be reread */
-#define TRACEPOINT_HEADER_MULTI_READ
-
-#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
-
-#include <lttng/ust-tracepoint-event.h>
-
-#undef TRACEPOINT_EVENT
-#undef TRACEPOINT_EVENT_CLASS
-#undef TRACEPOINT_EVENT_INSTANCE
-#undef TRACEPOINT_HEADER_MULTI_READ
-
-/* Only undef what we defined in this file */
-#ifdef UNDEF_TRACEPOINT_INCLUDE_FILE
-# undef TRACEPOINT_INCLUDE_FILE
-# undef UNDEF_TRACEPOINT_INCLUDE_FILE
-#endif
-
-#ifdef UNDEF_TRACEPOINT_INCLUDE_PATH
-# undef TRACEPOINT_INCLUDE_PATH
-# undef UNDEF_TRACEPOINT_INCLUDE_PATH
-#endif
-
-/* We may be processing more files */
-#define TRACEPOINT_CREATE_PROBES
-
-#endif /* TRACEPOINT_CREATE_PROBES */
-
-#ifdef __cplusplus
-}
-#endif
+++ /dev/null
-#ifndef _LTTNG_TRACEPOINT_INTERNAL_H
-#define _LTTNG_TRACEPOINT_INTERNAL_H
-
-/*
- * tracepoint-internal.h
- *
- * Tracepoint internal header.
- *
- * Copyright (C) 2008 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
- * Copyright (C) 2009 Pierre-Marc Fournier
- * Copyright (C) 2009 Steven Rostedt <rostedt@goodmis.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Heavily inspired from the Linux Kernel Markers.
- */
-
-#include <urcu-bp.h>
-#include <lttng/core.h>
-#include <urcu/list.h>
-#include <lttng/tracepoint-types.h>
-
-struct tracepoint_lib {
- struct tracepoint * const *tracepoints_start;
- int tracepoints_count;
- struct cds_list_head list;
-};
-
-extern int tracepoint_probe_register_noupdate(const char *name, void *probe,
- void *data);
-extern int tracepoint_probe_unregister_noupdate(const char *name, void *probe,
- void *data);
-extern void tracepoint_probe_update_all(void);
-
-struct tracepoint_iter {
- struct tracepoint_lib *lib;
- struct tracepoint * const *tracepoint;
-};
-
-extern void tracepoint_iter_start(struct tracepoint_iter *iter);
-extern void tracepoint_iter_next(struct tracepoint_iter *iter);
-extern void tracepoint_iter_stop(struct tracepoint_iter *iter);
-extern void tracepoint_iter_reset(struct tracepoint_iter *iter);
-extern int tracepoint_get_iter_range(struct tracepoint * const **tracepoint,
- struct tracepoint * const *begin, struct tracepoint * const *end);
-
-/*
- * tracepoint_synchronize_unregister must be called between the last tracepoint
- * probe unregistration and the end of module exit to make sure there is no
- * caller executing a probe when it is freed.
- */
-static inline void tracepoint_synchronize_unregister(void)
-{
- synchronize_rcu();
-}
-
-struct trace_event_iter {
- struct trace_event_lib *lib;
- struct trace_event * const *trace_event;
-};
-
-extern void trace_event_iter_start(struct trace_event_iter *iter);
-extern void trace_event_iter_next(struct trace_event_iter *iter);
-extern void trace_event_iter_stop(struct trace_event_iter *iter);
-extern void trace_event_iter_reset(struct trace_event_iter *iter);
-
-extern void trace_event_update_process(void);
-extern int is_trace_event_enabled(const char *channel, const char *name);
-
-extern void init_tracepoint(void);
-extern void exit_tracepoint(void);
-
-#endif /* _LTTNG_TRACEPOINT_INTERNAL_H */
+++ /dev/null
-#ifndef _LTTNG_TRACEPOINT_TYPES_H
-#define _LTTNG_TRACEPOINT_TYPES_H
-
-/*
- * Copyright (C) 2008-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- * Copyright (C) 2009 Pierre-Marc Fournier
- * Copyright (C) 2009 Steven Rostedt <rostedt@goodmis.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Heavily inspired from the Linux Kernel Markers.
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-struct tracepoint_probe {
- void *func;
- void *data;
-};
-
-struct tracepoint {
- const char *name; /* Tracepoint name */
- char state; /* State. */
- struct tracepoint_probe *probes;
-};
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _LTTNG_TRACEPOINT_TYPES_H */
+++ /dev/null
-#ifndef _LTTNG_TRACEPOINT_H
-#define _LTTNG_TRACEPOINT_H
-
-/*
- * Copyright (C) 2008-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- * Copyright (C) 2009 Pierre-Marc Fournier
- * Copyright (C) 2009 Steven Rostedt <rostedt@goodmis.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Heavily inspired from the Linux Kernel Markers.
- */
-
-#include <urcu-bp.h>
-#include <urcu/list.h>
-#include <lttng/tracepoint-types.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * Tracepoints should be added to the instrumented code using the
- * "tracepoint()" macro.
- */
-#define tracepoint(provider, name, args...) \
- do { \
- if (caa_unlikely(__tracepoint_##provider##___##name.state)) \
- __trace_##provider##___##name(args); \
- } while (0)
-
-/*
- * it_func[0] is never NULL because there is at least one element in the array
- * when the array itself is non NULL.
- */
-#define __DO_TRACE(tp, proto, vars) \
- do { \
- struct tracepoint_probe *__tp_it_probe_ptr; \
- void *__tp_it_func; \
- void *__tp_cb_data; \
- \
- rcu_read_lock(); \
- __tp_it_probe_ptr = rcu_dereference((tp)->probes); \
- if (__tp_it_probe_ptr) { \
- do { \
- __tp_it_func = __tp_it_probe_ptr->func; \
- __tp_cb_data = __tp_it_probe_ptr->data; \
- URCU_FORCE_CAST(void(*)(proto), __tp_it_func)(vars); \
- } while ((++__tp_it_probe_ptr)->func); \
- } \
- rcu_read_unlock(); \
- } while (0)
-
-#define TP_PARAMS(args...) args
-#define TP_ARGS(args...) args
-
-/*
- * TP_ARGS takes tuples of type, argument separated by a comma. It can
- * take up to 10 tuples (which means that less than 10 tuples is fine
- * too). Each tuple is also separated by a comma.
- */
-
-#define TP_COMBINE_TOKENS1(_tokena, _tokenb) _tokena##_tokenb
-#define TP_COMBINE_TOKENS(_tokena, _tokenb) TP_COMBINE_TOKENS1(_tokena, _tokenb)
-
-/* _TP_EVEN* extracts the vars names. */
-/* 0 and 1 are for void */
-#define _TP_EVEN0()
-#define _TP_EVEN1(a)
-#define _TP_EVEN2(a,b) b
-#define _TP_EVEN4(a,b,c,d) b,d
-#define _TP_EVEN6(a,b,c,d,e,f) b,d,f
-#define _TP_EVEN8(a,b,c,d,e,f,g,h) b,d,f,h
-#define _TP_EVEN10(a,b,c,d,e,f,g,h,i,j) b,d,f,h,j
-#define _TP_EVEN12(a,b,c,d,e,f,g,h,i,j,k,l) b,d,f,h,j,l
-#define _TP_EVEN14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) b,d,f,h,j,l,n
-#define _TP_EVEN16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) b,d,f,h,j,l,n,p
-#define _TP_EVEN18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) b,d,f,h,j,l,n,p,r
-#define _TP_EVEN20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) b,d,f,h,j,l,n,p,r,t
-
-/* 0 and 1 are for void */
-#define _TP_EVEN_DATA0() __tp_cb_data
-#define _TP_EVEN_DATA1(a) __tp_cb_data
-#define _TP_EVEN_DATA2(a,b) __tp_cb_data,b
-#define _TP_EVEN_DATA4(a,b,c,d) __tp_cb_data,b,d
-#define _TP_EVEN_DATA6(a,b,c,d,e,f) __tp_cb_data,b,d,f
-#define _TP_EVEN_DATA8(a,b,c,d,e,f,g,h) __tp_cb_data,b,d,f,h
-#define _TP_EVEN_DATA10(a,b,c,d,e,f,g,h,i,j) __tp_cb_data,b,d,f,h,j
-#define _TP_EVEN_DATA12(a,b,c,d,e,f,g,h,i,j,k,l) __tp_cb_data,b,d,f,h,j,l
-#define _TP_EVEN_DATA14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) __tp_cb_data,b,d,f,h,j,l,n
-#define _TP_EVEN_DATA16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) __tp_cb_data,b,d,f,h,j,l,n,p
-#define _TP_EVEN_DATA18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) __tp_cb_data,b,d,f,h,j,l,n,p,r
-#define _TP_EVEN_DATA20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) __tp_cb_data,b,d,f,h,j,l,n,p,r,t
-
-/* _TP_SPLIT extracts tuples of type, var */
-/* 0 and 1 are for void */
-#define _TP_SPLIT0()
-#define _TP_SPLIT1(a)
-#define _TP_SPLIT2(a,b) a b
-#define _TP_SPLIT4(a,b,c,d) a b,c d
-#define _TP_SPLIT6(a,b,c,d,e,f) a b,c d,e f
-#define _TP_SPLIT8(a,b,c,d,e,f,g,h) a b,c d,e f,g h
-#define _TP_SPLIT10(a,b,c,d,e,f,g,h,i,j) a b,c d,e f,g h,i j
-#define _TP_SPLIT12(a,b,c,d,e,f,g,h,i,j,k,l) a b,c d,e f,g h,i j,k l
-#define _TP_SPLIT14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) a b,c d,e f,g h,i j,k l,m n
-#define _TP_SPLIT16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) a b,c d,e f,g h,i j,k l,m n,o p
-#define _TP_SPLIT18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) a b,c d,e f,g h,i j,k l,m n,o p,q r
-#define _TP_SPLIT20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) a b,c d,e f,g h,i j,k l,m n,o p,q r,s t
-
-/* 0 and 1 are for void */
-#define _TP_SPLIT_DATA0() void *__tp_cb_data
-#define _TP_SPLIT_DATA1(a) void *__tp_cb_data
-#define _TP_SPLIT_DATA2(a,b) void *__tp_cb_data,a b
-#define _TP_SPLIT_DATA4(a,b,c,d) void *__tp_cb_data,a b,c d
-#define _TP_SPLIT_DATA6(a,b,c,d,e,f) void *__tp_cb_data,a b,c d,e f
-#define _TP_SPLIT_DATA8(a,b,c,d,e,f,g,h) void *__tp_cb_data,a b,c d,e f,g h
-#define _TP_SPLIT_DATA10(a,b,c,d,e,f,g,h,i,j) void *__tp_cb_data,a b,c d,e f,g h,i j
-#define _TP_SPLIT_DATA12(a,b,c,d,e,f,g,h,i,j,k,l) void *__tp_cb_data,a b,c d,e f,g h,i j,k l
-#define _TP_SPLIT_DATA14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) void *__tp_cb_data,a b,c d,e f,g h,i j,k l,m n
-#define _TP_SPLIT_DATA16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) void *__tp_cb_data,a b,c d,e f,g h,i j,k l,m n,o p
-#define _TP_SPLIT_DATA18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) void *__tp_cb_data,a b,c d,e f,g h,i j,k l,m n,o p,q r
-#define _TP_SPLIT_DATA20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) void *__tp_cb_data,a b,c d,e f,g h,i j,k l,m n,o p,q r,s t
-
-/* Preprocessor trick to count arguments. Inspired from sdt.h. */
-#define _TP_NARGS(...) __TP_NARGS(__VA_ARGS__, 20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)
-#define __TP_NARGS(_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,_11,_12,_13,_14,_15,_16,_17,_18,_19,_20, N, ...) N
-#define _TP_PROTO_N(N, ...) \
- TP_PARAMS(TP_COMBINE_TOKENS(_TP_SPLIT, N)(__VA_ARGS__))
-#define _TP_VARS_N(N, ...) \
- TP_PARAMS(TP_COMBINE_TOKENS(_TP_EVEN, N)(__VA_ARGS__))
-#define _TP_PROTO_DATA_N(N, ...) \
- TP_PARAMS(TP_COMBINE_TOKENS(_TP_SPLIT_DATA, N)(__VA_ARGS__))
-#define _TP_VARS_DATA_N(N, ...) \
- TP_PARAMS(TP_COMBINE_TOKENS(_TP_EVEN_DATA, N)(__VA_ARGS__))
-
-#define _TP_ARGS_PROTO(...) _TP_PROTO_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
-#define _TP_ARGS_VARS(...) _TP_VARS_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
-
-#define _TP_ARGS_PROTO_DATA(...) _TP_PROTO_DATA_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
-#define _TP_ARGS_VARS_DATA(...) _TP_VARS_DATA_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
-
-/*
- * Make sure the alignment of the structure in the __tracepoints section will
- * not add unwanted padding between the beginning of the section and the
- * structure. Force alignment to the same alignment as the section start.
- */
-#define __DECLARE_TRACEPOINT(provider, name, proto, args, data_proto, data_args) \
- extern struct tracepoint __tracepoint_##provider##___##name; \
- static inline void __trace_##provider##___##name(proto) \
- { \
- __DO_TRACE(&__tracepoint_##provider##___##name, \
- TP_PARAMS(data_proto), TP_PARAMS(data_args)); \
- } \
- static inline int \
- __register_trace_##provider##___##name(void (*probe)(data_proto), void *data) \
- { \
- return __tracepoint_probe_register(#provider ":" #name, (void *) probe, \
- data); \
- } \
- static inline int \
- __unregister_trace_##provider##___##name(void (*probe)(data_proto), void *data) \
- { \
- return __tracepoint_probe_unregister(#provider ":" #name, (void *) probe, \
- data); \
- }
-
-#define _DECLARE_TRACEPOINT(provider, name, args) \
- __DECLARE_TRACEPOINT(provider, name, _TP_ARGS_PROTO(args), _TP_ARGS_VARS(args), \
- _TP_ARGS_PROTO_DATA(args), _TP_ARGS_VARS_DATA(args))
-
-/*
- * __tracepoints_ptrs section is not const (read-only) to let the linker update
- * the pointer, allowing PIC code.
- */
-#define _DEFINE_TRACEPOINT(provider, name) \
- static const char __tpstrtab_##provider##___##name[] \
- __attribute__((section("__tracepoints_strings"))) = \
- #provider ":" #name; \
- struct tracepoint __tracepoint_##provider##___##name \
- __attribute__((section("__tracepoints"))) = \
- { __tpstrtab_##provider##___##name, 0, NULL }; \
- static struct tracepoint * __tracepoint_ptr_##provider##___##name \
- __attribute__((used, section("__tracepoints_ptrs"))) = \
- &__tracepoint_##provider##___##name;
-
-
-#define __register_tracepoint(provider, name, probe, data) \
- __register_trace_##provider##___##name(probe, data)
-#define __unregister_tracepoint(provider, name, probe, data) \
- __unregister_trace_##provider##___##name(probe, data)
-
-/*
- * Connect a probe to a tracepoint.
- * Internal API.
- */
-extern
-int __tracepoint_probe_register(const char *name, void *probe, void *data);
-
-/*
- * Disconnect a probe from a tracepoint.
- * Internal API.
- */
-extern
-int __tracepoint_probe_unregister(const char *name, void *probe, void *data);
-
-extern
-int tracepoint_register_lib(struct tracepoint * const *tracepoints_start,
- int tracepoints_count);
-extern
-int tracepoint_unregister_lib(struct tracepoint * const *tracepoints_start);
-
-/*
- * These weak symbols, the constructor, and destructor take care of
- * registering only _one_ instance of the tracepoints per shared-ojbect
- * (or for the whole main program).
- */
-extern struct tracepoint * const __start___tracepoints_ptrs[]
- __attribute__((weak, visibility("hidden")));
-extern struct tracepoint * const __stop___tracepoints_ptrs[]
- __attribute__((weak, visibility("hidden")));
-int __tracepoint_registered
- __attribute__((weak, visibility("hidden")));
-
-static void __attribute__((constructor)) __tracepoints__init(void)
-{
- if (__tracepoint_registered++)
- return;
- tracepoint_register_lib(__start___tracepoints_ptrs,
- __stop___tracepoints_ptrs -
- __start___tracepoints_ptrs);
-}
-
-static void __attribute__((destructor)) __tracepoints__destroy(void)
-{
- if (--__tracepoint_registered)
- return;
- tracepoint_unregister_lib(__start___tracepoints_ptrs);
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _LTTNG_TRACEPOINT_H */
-
-/*
- * For multiple probe generation, we need to redefine TRACEPOINT_EVENT
- * each time tracepoint.h is included.
- */
-
-#ifndef TRACEPOINT_EVENT
-/*
- * Usage of the TRACEPOINT_EVENT macro:
- *
- * In short, an example:
- *
- * TRACEPOINT_EVENT(< [com_company_]project[_component] >, < event >,
- *
- * * TP_ARGS takes from 0 to 10 "type, field_name" pairs *
- *
- * TP_ARGS(int, arg0, void *, arg1, char *, string, size_t, strlen,
- * long *, arg4, size_t, arg4_len),
- * TP_FIELDS(
- *
- * * Integer, printed in base 10 *
- * ctf_integer(int, field_a, arg0)
- *
- * * Integer, printed with 0x base 16 *
- * ctf_integer_hex(unsigned long, field_d, arg1)
- *
- * * Array Sequence, printed as UTF8-encoded array of bytes *
- * ctf_array_text(char, field_b, string, FIXED_LEN)
- * ctf_sequence_text(char, field_c, string, size_t, strlen)
- *
- * * String, printed as UTF8-encoded string *
- * ctf_string(field_e, string)
- *
- * * Array sequence of signed integer values *
- * ctf_array(long, field_f, arg4, FIXED_LEN4)
- * ctf_sequence(long, field_g, arg4, size_t, arg4_len)
- * )
- * )
- *
- * In more detail:
- *
- * We define a tracepoint, its arguments, and its 'fast binary record'
- * layout.
- *
- * Firstly, name your tracepoint via TRACEPOINT_EVENT(provider, name,
- *
- * The provider and name should be a proper C99 identifier.
- * The "provider" and "name" MUST follow these rules to ensure no
- * namespace clash occurs:
- *
- * For projects (applications and libraries) for which an entity
- * specific to the project controls the source code and thus its
- * tracepoints (typically with a scope larger than a single company):
- *
- * either:
- * project_component, event
- * or:
- * project, event
- *
- * Where "project" is the name of the project,
- * "component" is the name of the project component (which may
- * include several levels of sub-components, e.g.
- * ...component_subcomponent_...) where the tracepoint is located
- * (optional),
- * "event" is the name of the tracepoint event.
- *
- * For projects issued from a single company wishing to advertise that
- * the company controls the source code and thus the tracepoints, the
- * "com_" prefix should be used:
- *
- * either:
- * com_company_project_component, event
- * or:
- * com_company_project, event
- *
- * Where "company" is the name of the company,
- * "project" is the name of the project,
- * "component" is the name of the project component (which may
- * include several levels of sub-components, e.g.
- * ...component_subcomponent_...) where the tracepoint is located
- * (optional),
- * "event" is the name of the tracepoint event.
- *
- * the provider:event identifier is limited to 127 characters.
- *
- * As an example, let's consider a user-space application "someproject"
- * that would have an internal thread scheduler:
- *
- * TRACEPOINT_EVENT(someproject_sched, switch,
- *
- * *
- * * Arguments to pass to the tracepoint. Supports from
- * * 0 to 10 "type, name" tuples.
- * *
- *
- * TP_ARGS(struct rq *, rq, struct task_struct *, prev,
- * struct task_struct *, next),
- *
- * *
- * * Fast binary tracing: define the trace record via
- * * TP_FIELDS(). You can think about it like a
- * * regular C structure local variable definition.
- * *
- * * This is how the trace record is structured and will
- * * be saved into the ring buffer. These are the fields
- * * that will be exposed to readers.
- * *
- * * ctf_integer(pid_t, prev_pid, prev->pid) is equivalent
- * * to a standard declaraton:
- * *
- * * pid_t prev_pid;
- * *
- * * followed by an assignment:
- * *
- * * prev_pid = prev->pid;
- * *
- * * ctf_array(char, prev_comm, prev->comm, TASK_COMM_LEN) is
- * * equivalent to:
- * *
- * * char prev_comm[TASK_COMM_LEN];
- * *
- * * followed by an assignment:
- * *
- * * memcpy(prev_comm, prev->comm, TASK_COMM_LEN);
- * *
- *
- * TP_FIELDS(
- * ctf_array(char, prev_comm, prev->comm, TASK_COMM_LEN)
- * ctf_integer(pid_t, prev_pid, prev->pid)
- * ctf_integer(int, prev_prio, prev->prio)
- * ctf_array(char, next_comm, next->comm, TASK_COMM_LEN)
- * ctf_integer(pid_t, next_pid, next->pid)
- * ctf_integer(int, next_prio, next->prio)
- * )
- * )
- *
- * Do _NOT_ add comma (,) nor semicolon (;) after the TRACEPOINT_EVENT
- * declaration.
- *
- * The TRACEPOINT_PROVIDER must be defined when declaring a
- * TRACEPOINT_EVENT. See ust/tracepoint-event.h for information about
- * usage of other macros controlling TRACEPOINT_EVENT.
- */
-
-#define TRACEPOINT_EVENT(provider, name, args, fields) \
- _DECLARE_TRACEPOINT(provider, name, TP_PARAMS(args))
-
-#define TRACEPOINT_EVENT_CLASS(provider, name, args, fields)
-#define TRACEPOINT_EVENT_INSTANCE(provider, template, name, args)\
- _DECLARE_TRACEPOINT(provider, name, TP_PARAMS(args))
-
-#endif /* #ifndef TRACEPOINT_EVENT */
-
-#ifndef TRACEPOINT_LOGLEVEL
-
-/*
- * Tracepoint Loglevel Declaration Facility
- *
- * This is a place-holder the tracepoint loglevel declaration,
- * overridden by the tracer implementation.
- *
- * Typical use of these loglevels:
- *
- * 1) Declare the mapping between loglevel names and an integer values
- * within TRACEPOINT_LOGLEVEL_ENUM, using TP_LOGLEVEL for each tuple.
- * Do _NOT_ add comma (,) nor semicolon (;) between the
- * TRACEPOINT_LOGLEVEL_ENUM entries. Do _NOT_ add comma (,) nor
- * semicolon (;) after the TRACEPOINT_LOGLEVEL_ENUM declaration. The
- * name should be a proper C99 identifier.
- *
- * TRACEPOINT_LOGLEVEL_ENUM(
- * TP_LOGLEVEL( < loglevel_name >, < value > )
- * TP_LOGLEVEL( < loglevel_name >, < value > )
- * ...
- * )
- *
- * e.g.:
- *
- * TRACEPOINT_LOGLEVEL_ENUM(
- * TP_LOGLEVEL(LOG_EMERG, 0)
- * TP_LOGLEVEL(LOG_ALERT, 1)
- * TP_LOGLEVEL(LOG_CRIT, 2)
- * TP_LOGLEVEL(LOG_ERR, 3)
- * TP_LOGLEVEL(LOG_WARNING, 4)
- * TP_LOGLEVEL(LOG_NOTICE, 5)
- * TP_LOGLEVEL(LOG_INFO, 6)
- * TP_LOGLEVEL(LOG_DEBUG, 7)
- * )
- *
- * 2) Then, declare tracepoint loglevels for tracepoints. A
- * TRACEPOINT_EVENT should be declared prior to the the
- * TRACEPOINT_LOGLEVEL for a given tracepoint name. The first field
- * is the name of the tracepoint, the second field is the loglevel
- * name.
- *
- * TRACEPOINT_LOGLEVEL(< [com_company_]project[_component] >, < event >,
- * < loglevel_name >)
- *
- * The TRACEPOINT_PROVIDER must be defined when declaring a
- * TRACEPOINT_LOGLEVEL_ENUM and TRACEPOINT_LOGLEVEL. The tracepoint
- * loglevel enumeration apply to the entire TRACEPOINT_PROVIDER. Only one
- * tracepoint loglevel enumeration should be declared per tracepoint
- * provider.
- */
-
-#define TRACEPOINT_LOGLEVEL_ENUM()
-#define TRACEPOINT_LOGLEVEL(name, loglevel)
-
-#endif /* #ifndef TRACEPOINT_LOGLEVEL */
*
* LTTng-UST ABI header
*
- * Dual LGPL v2.1/GPL v2 license.
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program
+ * for any purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
*/
#include <stdint.h>
*
* Holds LTTng per-session event registry.
*
- * Dual LGPL v2.1/GPL v2 license.
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program
+ * for any purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
*/
#include <urcu/list.h>
const char *name;
struct lttng_type container_type;
const struct lttng_enum_entry *entries;
- unsigned int len;
+ nsigned int len;
};
/* Event field description */
+++ /dev/null
-/*
- * lttng/ust-tracepoint-events-reset.h
- *
- * Copyright (C) 2010-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Dual LGPL v2.1/GPL v2 license.
- */
-
-/* Reset macros used within TRACEPOINT_EVENT to "nothing" */
-
-#undef ctf_integer_ext
-#define ctf_integer_ext(_type, _item, _src, _byte_order, _base)
-
-#undef ctf_float
-#define ctf_float(_type, _item, _src)
-
-#undef ctf_array_encoded
-#define ctf_array_encoded(_type, _item, _src, _length, _encoding)
-
-#undef ctf_sequence_encoded
-#define ctf_sequence_encoded(_type, _item, _src, _length_type, \
- _src_length, _encoding)
-
-#undef ctf_string
-#define ctf_string(_item, _src)
-
-#undef TP_ARGS
-#define TP_ARGS(args...)
-
-#undef TP_FIELDS
-#define TP_FIELDS(args...)
-
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields)
-
-#undef TRACEPOINT_EVENT_INSTANCE
-#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args)
+++ /dev/null
-/*
- * Copyright (C) 2009 Steven Rostedt <srostedt@redhat.com>
- * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdio.h>
-#include <urcu/compiler.h>
-#include <lttng/ust-events.h>
-#include <lttng/usterr-signal-safe.h>
-#include <lttng/ringbuffer-config.h>
-
-/*
- * Macro declarations used for all stages.
- */
-
-#undef ctf_integer
-#define ctf_integer(_type, _item, _src) \
- ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 10)
-
-#undef ctf_integer_hex
-#define ctf_integer_hex(_type, _item, _src) \
- ctf_integer_ext(_type, _item, _src, BYTE_ORDER, 16)
-
-#undef ctf_integer_network
-#define ctf_integer_network(_type, _item, _src) \
- ctf_integer_ext(_type, _item, _src, BIG_ENDIAN, 10)
-
-#undef ctf_integer_network_hex
-#define ctf_integer_network_hex(_type, _item, _src) \
- ctf_integer_ext(_type, _item, _src, BIG_ENDIAN, 16)
-
-/* ctf_float is redefined at each step */
-
-#undef ctf_array
-#define ctf_array(_type, _item, _src, _length) \
- ctf_array_encoded(_type, _item, _src, _length, none)
-
-#undef ctf_array_text
-#define ctf_array_text(_type, _item, _src, _length) \
- ctf_array_encoded(_type, _item, _src, _length, UTF8)
-
-#undef ctf_sequence
-#define ctf_sequence(_type, _item, _src, _length_type, _src_length) \
- ctf_sequence_encoded(_type, _item, _src, \
- _length_type, _src_length, none)
-
-#undef ctf_sequence_text
-#define ctf_sequence_text(_type, _item, _src, _length_type, _src_length) \
- ctf_sequence_encoded(_type, _item, _src, \
- _length_type, _src_length, UTF8)
-
-/* ctf_string is redefined at each step */
-
-/*
- * TRACEPOINT_EVENT_CLASS can be used to add a generic function handlers
- * for events. That is, if all events have the same parameters and just
- * have distinct trace points. Each tracepoint can be defined with
- * TRACEPOINT_EVENT_INSTANCE and that will map the
- * TRACEPOINT_EVENT_CLASS to the tracepoint.
- *
- * TRACEPOINT_EVENT is a one to one mapping between tracepoint and
- * template.
- */
-
-#undef TRACEPOINT_EVENT
-#define TRACEPOINT_EVENT(provider, name, args, fields) \
- TRACEPOINT_EVENT_CLASS(provider, name, \
- TP_PARAMS(args), \
- TP_PARAMS(fields)) \
- TRACEPOINT_EVENT_INSTANCE(provider, name, name, TP_PARAMS(args))
-
-/* Helpers */
-#define _TP_ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-
-#define _tp_max_t(type, x, y) \
- ({ \
- type __max1 = (x); \
- type __max2 = (y); \
- __max1 > __max2 ? __max1: __max2; \
- })
-
-/*
- * Stage 0 of the trace events.
- *
- * Check that each TRACEPOINT_EVENT provider argument match the
- * TRACEPOINT_PROVIDER by creating dummy callbacks.
- */
-
-/* Reset all macros within TRACEPOINT_EVENT */
-#include <lttng/ust-tracepoint-event-reset.h>
-
-#define TP_ID1(_token, _provider) _token##_provider
-#define TP_ID(_token, _provider) TP_ID1(_token, _provider)
-
-static inline
-void TP_ID(__tracepoint_provider_mismatch_, TRACEPOINT_PROVIDER)(void)
-{
-}
-
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
- __tracepoint_provider_mismatch_##_provider();
-
-#undef TRACEPOINT_EVENT_INSTANCE
-#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
- __tracepoint_provider_mismatch_##_provider();
-
-static __attribute__((unused))
-void TP_ID(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)(void)
-{
-#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
-}
-
-#undef TP_ID1
-#undef TP_ID
-
-/*
- * Stage 1 of the trace events.
- *
- * Create event field type metadata section.
- * Each event produce an array of fields.
- */
-
-/* Reset all macros within TRACEPOINT_EVENT */
-#include <lttng/ust-tracepoint-event-reset.h>
-
-#undef ctf_integer_ext
-#define ctf_integer_ext(_type, _item, _src, _byte_order, _base) \
- { \
- .name = #_item, \
- .type = __type_integer(_type, _byte_order, _base, none),\
- },
-
-#undef ctf_float
-#define ctf_float(_type, _item, _src) \
- { \
- .name = #_item, \
- .type = __type_float(_type), \
- },
-
-#undef ctf_array_encoded
-#define ctf_array_encoded(_type, _item, _src, _length, _encoding) \
- { \
- .name = #_item, \
- .type = \
- { \
- .atype = atype_array, \
- .u.array = \
- { \
- .length = _length, \
- .elem_type = __type_integer(_type, BYTE_ORDER, 10, _encoding), \
- }, \
- }, \
- },
-
-#undef ctf_sequence_encoded
-#define ctf_sequence_encoded(_type, _item, _src, \
- _length_type, _src_length, _encoding) \
- { \
- .name = #_item, \
- .type = \
- { \
- .atype = atype_sequence, \
- .u.sequence = \
- { \
- .length_type = __type_integer(_length_type, BYTE_ORDER, 10, none), \
- .elem_type = __type_integer(_type, BYTE_ORDER, 10, _encoding), \
- }, \
- }, \
- },
-
-#undef ctf_string
-#define ctf_string(_item, _src) \
- { \
- .name = #_item, \
- .type = \
- { \
- .atype = atype_string, \
- .u.basic.string.encoding = lttng_encode_UTF8, \
- }, \
- },
-
-#undef TP_FIELDS
-#define TP_FIELDS(args...) args /* Only one used in this phase */
-
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
- static const struct lttng_event_field __event_fields___##_provider##___##_name[] = { \
- _fields \
- };
-
-#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
-
-/*
- * Stage 2 of the trace events.
- *
- * Create probe callback prototypes.
- */
-
-/* Reset all macros within TRACEPOINT_EVENT */
-#include <lttng/ust-tracepoint-event-reset.h>
-
-#undef TP_ARGS
-#define TP_ARGS(args...) args
-
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
-static void __event_probe__##_provider##___##_name(_TP_ARGS_PROTO_DATA(_args));
-
-#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
-
-/*
- * Stage 3 of the trace events.
- *
- * Create an array of events.
- */
-
-/* Reset all macros within TRACEPOINT_EVENT */
-#include <lttng/ust-tracepoint-event-reset.h>
-
-#undef TRACEPOINT_EVENT_INSTANCE
-#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
- { \
- .fields = __event_fields___##_provider##___##_template,\
- .name = #_provider ":" #_name, \
- .probe_callback = (void *) &__event_probe__##_provider##___##_template,\
- .nr_fields = _TP_ARRAY_SIZE(__event_fields___##_provider##___##_template), \
- },
-
-#define TP_ID1(_token, _provider) _token##_provider
-#define TP_ID(_token, _provider) TP_ID1(_token, _provider)
-
-static const struct lttng_event_desc TP_ID(__event_desc___, TRACEPOINT_PROVIDER)[] = {
-#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
-};
-
-#undef TP_ID1
-#undef TP_ID
-
-
-/*
- * Stage 4 of the trace events.
- *
- * Create a toplevel descriptor for the whole probe.
- */
-
-#define TP_ID1(_token, _provider) _token##_provider
-#define TP_ID(_token, _provider) TP_ID1(_token, _provider)
-
-/* non-const because list head will be modified when registered. */
-static struct lttng_probe_desc TP_ID(__probe_desc___, TRACEPOINT_PROVIDER) = {
- .event_desc = TP_ID(__event_desc___, TRACEPOINT_PROVIDER),
- .nr_events = _TP_ARRAY_SIZE(TP_ID(__event_desc___, TRACEPOINT_PROVIDER)),
-};
-
-#undef TP_ID1
-#undef TP_ID
-
-/*
- * Stage 5 of the trace events.
- *
- * Create static inline function that calculates event size.
- */
-
-/* Reset all macros within TRACEPOINT_EVENT */
-#include <lttng/ust-tracepoint-event-reset.h>
-
-#undef ctf_integer_ext
-#define ctf_integer_ext(_type, _item, _src, _byte_order, _base) \
- __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
- __event_len += sizeof(_type);
-
-#undef ctf_float
-#define ctf_float(_type, _item, _src) \
- __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
- __event_len += sizeof(_type);
-
-#undef ctf_array_encoded
-#define ctf_array_encoded(_type, _item, _src, _length, _encoding) \
- __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
- __event_len += sizeof(_type) * (_length);
-
-#undef ctf_sequence_encoded
-#define ctf_sequence_encoded(_type, _item, _src, _length_type, \
- _src_length, _encoding) \
- __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_length_type)); \
- __event_len += sizeof(_length_type); \
- __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
- __dynamic_len[__dynamic_len_idx] = (_src_length); \
- __event_len += sizeof(_type) * __dynamic_len[__dynamic_len_idx]; \
- __dynamic_len_idx++;
-
-#undef ctf_string
-#define ctf_string(_item, _src) \
- __event_len += __dynamic_len[__dynamic_len_idx++] = strlen(_src) + 1;
-
-#undef TP_ARGS
-#define TP_ARGS(args...) args
-
-#undef TP_FIELDS
-#define TP_FIELDS(args...) args
-
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
-static inline size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, _TP_ARGS_PROTO_DATA(_args)) \
-{ \
- size_t __event_len = 0; \
- unsigned int __dynamic_len_idx = 0; \
- \
- if (0) \
- (void) __dynamic_len_idx; /* don't warn if unused */ \
- _fields \
- return __event_len; \
-}
-
-#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
-
-/*
- * Stage 6 of the trace events.
- *
- * Create static inline function that calculates event payload alignment.
- */
-
-/* Reset all macros within TRACEPOINT_EVENT */
-#include <lttng/ust-tracepoint-event-reset.h>
-
-#undef ctf_integer_ext
-#define ctf_integer_ext(_type, _item, _src, _byte_order, _base) \
- __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type));
-
-#undef ctf_float
-#define ctf_float(_type, _item, _src) \
- __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type));
-
-#undef ctf_array_encoded
-#define ctf_array_encoded(_type, _item, _src, _length, _encoding) \
- __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type));
-
-#undef ctf_sequence_encoded
-#define ctf_sequence_encoded(_type, _item, _src, _length_type, \
- _src_length, _encoding) \
- __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_length_type)); \
- __event_align = _tp_max_t(size_t, __event_align, lttng_alignof(_type));
-
-#undef ctf_string
-#define ctf_string(_item, _src)
-
-#undef TP_ARGS
-#define TP_ARGS(args...) args
-
-#undef TP_FIELDS
-#define TP_FIELDS(args...) args
-
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
-static inline \
-size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args)) \
-{ \
- size_t __event_align = 1; \
- _fields \
- return __event_align; \
-}
-
-#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
-
-
-/*
- * Stage 7 of the trace events.
- *
- * Create the probe function : call even size calculation and write event data
- * into the buffer.
- *
- * We use both the field and assignment macros to write the fields in the order
- * defined in the field declaration. The field declarations control the
- * execution order, jumping to the appropriate assignment block.
- */
-
-/* Reset all macros within TRACEPOINT_EVENT */
-#include <lttng/ust-tracepoint-event-reset.h>
-
-#undef ctf_integer_ext
-#define ctf_integer_ext(_type, _item, _src, _byte_order, _base) \
- { \
- _type __tmp = (_src); \
- lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__tmp));\
- __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp));\
- }
-
-#undef ctf_float
-#define ctf_float(_type, _item, _src) \
- { \
- _type __tmp = (_src); \
- lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__tmp));\
- __chan->ops->event_write(&__ctx, &__tmp, sizeof(__tmp));\
- }
-
-#undef ctf_array_encoded
-#define ctf_array_encoded(_type, _item, _src, _length, _encoding) \
- lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \
- __chan->ops->event_write(&__ctx, _src, sizeof(_type) * (_length));
-
-#undef ctf_sequence_encoded
-#define ctf_sequence_encoded(_type, _item, _src, _length_type, \
- _src_length, _encoding) \
- { \
- _length_type __tmpl = __dynamic_len[__dynamic_len_idx]; \
- lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_length_type));\
- __chan->ops->event_write(&__ctx, &__tmpl, sizeof(_length_type));\
- } \
- lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type)); \
- __chan->ops->event_write(&__ctx, _src, \
- sizeof(_type) * __get_dynamic_len(dest));
-
-#undef ctf_string
-#define ctf_string(_item, _src) \
- lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(*(_src))); \
- __chan->ops->event_write(&__ctx, _src, __get_dynamic_len(dest));
-
-/* Beware: this get len actually consumes the len value */
-#undef __get_dynamic_len
-#define __get_dynamic_len(field) __dynamic_len[__dynamic_len_idx++]
-
-#undef TP_ARGS
-#define TP_ARGS(args...) args
-
-#undef TP_FIELDS
-#define TP_FIELDS(args...) args
-
-#undef TRACEPOINT_EVENT_CLASS
-#define TRACEPOINT_EVENT_CLASS(_provider, _name, _args, _fields) \
-static void __event_probe__##_provider##___##_name(_TP_ARGS_PROTO_DATA(_args))\
-{ \
- struct ltt_event *__event = __tp_cb_data; \
- struct ltt_channel *__chan = __event->chan; \
- struct lttng_ust_lib_ring_buffer_ctx __ctx; \
- size_t __event_len, __event_align; \
- size_t __dynamic_len_idx = 0; \
- size_t __dynamic_len[_TP_ARRAY_SIZE(__event_fields___##_provider##___##_name)]; \
- int __ret; \
- \
- if (0) \
- (void) __dynamic_len_idx; /* don't warn if unused */ \
- if (caa_unlikely(!CMM_ACCESS_ONCE(__chan->session->active))) \
- return; \
- if (caa_unlikely(!CMM_ACCESS_ONCE(__chan->enabled))) \
- return; \
- if (caa_unlikely(!CMM_ACCESS_ONCE(__event->enabled))) \
- return; \
- __event_len = __event_get_size__##_provider##___##_name(__dynamic_len,\
- _TP_ARGS_VARS_DATA(_args)); \
- __event_align = __event_get_align__##_provider##___##_name(_TP_ARGS_VARS(_args)); \
- lib_ring_buffer_ctx_init(&__ctx, __chan->chan, __event, __event_len, \
- __event_align, -1, __chan->handle); \
- __ret = __chan->ops->event_reserve(&__ctx, __event->id); \
- if (__ret < 0) \
- return; \
- _fields \
- __chan->ops->event_commit(&__ctx); \
-}
-
-#include TRACEPOINT_INCLUDE(TRACEPOINT_INCLUDE_FILE)
-
-#undef __get_dynamic_len
-
-/*
- * Stage 8 of the trace events.
- *
- * Register/unregister probes at module load/unload.
- */
-
-/* Reset all macros within TRACEPOINT_EVENT */
-#include <lttng/ust-tracepoint-event-reset.h>
-
-#define TP_ID1(_token, _provider) _token##_provider
-#define TP_ID(_token, _provider) TP_ID1(_token, _provider)
-
-static void __attribute__((constructor))
-TP_ID(__lttng_events_init__, TRACEPOINT_PROVIDER)(void)
-{
- int ret;
-
- ret = ltt_probe_register(&TP_ID(__probe_desc___, TRACEPOINT_PROVIDER));
- assert(!ret);
-}
-
-static void __attribute__((destructor))
-TP_ID(__lttng_events_exit__, TRACEPOINT_PROVIDER)(void)
-{
- ltt_probe_unregister(&TP_ID(__probe_desc___, TRACEPOINT_PROVIDER));
-}
-
-#undef TP_ID1
-#undef TP_ID
*
* Copyright (C) 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * Dual LGPL v2.1/GPL v2 license.
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program
+ * for any purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
*/
#include <assert.h>
+++ /dev/null
-Nils Carlson
-Aug 30th, 2010
-Mathieu Desnoyers
-April 13th, 2011
-
-The following copyright holders have agreed to LGPLv2.1 (not later)
-re-licensing of their contributions to linux/include/tracepoint.h,
-linux/trace/define_trace.h as concerns the TRACE_EVENT macro.
-
-Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
-Steven Rostedt <rostedt@goodmis.org>
- https://lkml.org/lkml/2011/4/13/484
-Frederic Weisbecker <fweisbec@gmail.com>
-Xiao Guangrong <xiaogunagrong@cn.fujitsu.com>
-Josh Stone <jistone@redhat.com>
-Lai Jiangshan <laijs@cn.fujitsu.com>
-
-The following copyright holders have agreed to LGPLv2.1 (not later)
-re-licensing of their contributions to linux/include/stringify.h.
-
-Zhaolei <zhaolei@cn.fujitsu.com>
-
-The full license text may be found in lgpl-2.1.txt.
projects / lttng-ust.git / commitdiff
