-#ifndef _LTTNG_TRACEPOINT_H
-#define _LTTNG_TRACEPOINT_H
+// SPDX-FileCopyrightText: 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+//
+// SPDX-License-Identifier: MIT
-/*
- * Copyright 2011-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
+#ifndef _LTTNG_UST_TRACEPOINT_H
+#define _LTTNG_UST_TRACEPOINT_H
#include <stdio.h>
#include <stdlib.h>
#include <lttng/tracepoint-types.h>
#include <lttng/tracepoint-rcu.h>
+#include <lttng/ust-utils.h>
+#include <sys/types.h>
+#include <unistd.h>
+
#include <urcu/compiler.h>
#include <urcu/system.h>
#include <dlfcn.h> /* for dlopen */
#include <string.h> /* for memset */
+#include <stdbool.h>
+
#include <lttng/ust-config.h> /* for sdt */
#include <lttng/ust-compiler.h>
+#include <lttng/ust-tracer.h>
+#include <lttng/ust-api-compat.h>
+
+#if (defined(__cplusplus) && (__cplusplus <= 199711L))
+#error "C++11 support is required to build tracepoints and providers as C++"
+#endif
+
+#define LTTNG_UST_TRACEPOINT_NAME_LEN_MAX 256
#ifdef LTTNG_UST_HAVE_SDT_INTEGRATION
-#define SDT_USE_VARIADIC
+/*
+ * Instead of using SDT_USE_VARIADIC from 'sys/sdt.h', use our own namespaced
+ * macros since the instrumented application might already have included
+ * 'sys/sdt.h' without variadic support.
+ */
#include <sys/sdt.h>
-#define LTTNG_STAP_PROBEV STAP_PROBEV
+
+#define LTTNG_UST__SDT_NARG(...) \
+ LTTNG_UST___SDT_NARG(__VA_ARGS__, 12,11,10,9,8,7,6,5,4,3,2,1,0)
+
+#define LTTNG_UST___SDT_NARG(_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,_11,_12, N, ...) N
+
+#define LTTNG_UST__SDT_PROBE_N(provider, name, N, ...) \
+ _SDT_PROBE(provider, name, N, (__VA_ARGS__))
+
+#define LTTNG_UST_STAP_PROBEV(provider, name, ...) \
+ LTTNG_UST__SDT_PROBE_N(provider, name, LTTNG_UST__SDT_NARG(0, ##__VA_ARGS__), ##__VA_ARGS__)
+
#else
-#define LTTNG_STAP_PROBEV(...)
+#define LTTNG_UST_STAP_PROBEV(...)
#endif
#ifdef __cplusplus
extern "C" {
#endif
-#define tracepoint_enabled(provider, name) \
- caa_unlikely(CMM_LOAD_SHARED(__tracepoint_##provider##___##name.state))
+#define lttng_ust_tracepoint_enabled(provider, name) \
+ caa_unlikely(CMM_LOAD_SHARED(lttng_ust_tracepoint_##provider##___##name.state))
-#define do_tracepoint(provider, name, ...) \
- __tracepoint_cb_##provider##___##name(__VA_ARGS__)
+#define lttng_ust_do_tracepoint(provider, name, ...) \
+ lttng_ust_tracepoint_cb_##provider##___##name(__VA_ARGS__)
-#define tracepoint(provider, name, ...) \
- do { \
- LTTNG_STAP_PROBEV(provider, name, ## __VA_ARGS__); \
- if (tracepoint_enabled(provider, name)) \
- do_tracepoint(provider, name, __VA_ARGS__); \
+#define lttng_ust_tracepoint(provider, name, ...) \
+ do { \
+ LTTNG_UST_STAP_PROBEV(provider, name, ## __VA_ARGS__); \
+ if (lttng_ust_tracepoint_enabled(provider, name)) \
+ lttng_ust_do_tracepoint(provider, name, __VA_ARGS__); \
} while (0)
-#define TP_ARGS(...) __VA_ARGS__
+#define LTTNG_UST_TP_ARGS(...) __VA_ARGS__
/*
- * TP_ARGS takes tuples of type, argument separated by a comma.
+ * LTTNG_UST_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_TOKENS(_tokena, _tokenb) \
+#define LTTNG_UST___TP_COMBINE_TOKENS(_tokena, _tokenb) \
_tokena##_tokenb
-#define _TP_COMBINE_TOKENS(_tokena, _tokenb) \
- __TP_COMBINE_TOKENS(_tokena, _tokenb)
-#define __TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc) \
+#define LTTNG_UST__TP_COMBINE_TOKENS(_tokena, _tokenb) \
+ LTTNG_UST___TP_COMBINE_TOKENS(_tokena, _tokenb)
+#define LTTNG_UST___TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc) \
_tokena##_tokenb##_tokenc
-#define _TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc) \
- __TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc)
-#define __TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend) \
+#define LTTNG_UST__TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc) \
+ LTTNG_UST___TP_COMBINE_TOKENS3(_tokena, _tokenb, _tokenc)
+#define LTTNG_UST___TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend) \
_tokena##_tokenb##_tokenc##_tokend
-#define _TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend) \
- __TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend)
+#define LTTNG_UST__TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend) \
+ LTTNG_UST___TP_COMBINE_TOKENS4(_tokena, _tokenb, _tokenc, _tokend)
/*
- * _TP_EXVAR* extract the var names.
- * _TP_EXVAR1 and _TP_EXDATA_VAR1 are needed for -std=c99.
+ * LTTNG_UST__TP_EXVAR* extract the var names.
+ * LTTNG_UST__TP_EXVAR1 and LTTNG_UST__TP_EXDATA_VAR1 are needed for -std=c99.
*/
-#define _TP_EXVAR0()
-#define _TP_EXVAR1(a)
-#define _TP_EXVAR2(a,b) b
-#define _TP_EXVAR4(a,b,c,d) b,d
-#define _TP_EXVAR6(a,b,c,d,e,f) b,d,f
-#define _TP_EXVAR8(a,b,c,d,e,f,g,h) b,d,f,h
-#define _TP_EXVAR10(a,b,c,d,e,f,g,h,i,j) b,d,f,h,j
-#define _TP_EXVAR12(a,b,c,d,e,f,g,h,i,j,k,l) b,d,f,h,j,l
-#define _TP_EXVAR14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) b,d,f,h,j,l,n
-#define _TP_EXVAR16(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_EXVAR18(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_EXVAR20(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
-
-#define _TP_EXDATA_VAR0() __tp_data
-#define _TP_EXDATA_VAR1(a) __tp_data
-#define _TP_EXDATA_VAR2(a,b) __tp_data,b
-#define _TP_EXDATA_VAR4(a,b,c,d) __tp_data,b,d
-#define _TP_EXDATA_VAR6(a,b,c,d,e,f) __tp_data,b,d,f
-#define _TP_EXDATA_VAR8(a,b,c,d,e,f,g,h) __tp_data,b,d,f,h
-#define _TP_EXDATA_VAR10(a,b,c,d,e,f,g,h,i,j) __tp_data,b,d,f,h,j
-#define _TP_EXDATA_VAR12(a,b,c,d,e,f,g,h,i,j,k,l) __tp_data,b,d,f,h,j,l
-#define _TP_EXDATA_VAR14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) __tp_data,b,d,f,h,j,l,n
-#define _TP_EXDATA_VAR16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) __tp_data,b,d,f,h,j,l,n,p
-#define _TP_EXDATA_VAR18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) __tp_data,b,d,f,h,j,l,n,p,r
-#define _TP_EXDATA_VAR20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) __tp_data,b,d,f,h,j,l,n,p,r,t
+#define LTTNG_UST__TP_EXVAR0()
+#define LTTNG_UST__TP_EXVAR1(a)
+#define LTTNG_UST__TP_EXVAR2(a,b) b
+#define LTTNG_UST__TP_EXVAR4(a,b,c,d) b,d
+#define LTTNG_UST__TP_EXVAR6(a,b,c,d,e,f) b,d,f
+#define LTTNG_UST__TP_EXVAR8(a,b,c,d,e,f,g,h) b,d,f,h
+#define LTTNG_UST__TP_EXVAR10(a,b,c,d,e,f,g,h,i,j) b,d,f,h,j
+#define LTTNG_UST__TP_EXVAR12(a,b,c,d,e,f,g,h,i,j,k,l) b,d,f,h,j,l
+#define LTTNG_UST__TP_EXVAR14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) b,d,f,h,j,l,n
+#define LTTNG_UST__TP_EXVAR16(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 LTTNG_UST__TP_EXVAR18(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 LTTNG_UST__TP_EXVAR20(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
+
+#define LTTNG_UST__TP_EXDATA_VAR0() __tp_data
+#define LTTNG_UST__TP_EXDATA_VAR1(a) __tp_data
+#define LTTNG_UST__TP_EXDATA_VAR2(a,b) __tp_data,b
+#define LTTNG_UST__TP_EXDATA_VAR4(a,b,c,d) __tp_data,b,d
+#define LTTNG_UST__TP_EXDATA_VAR6(a,b,c,d,e,f) __tp_data,b,d,f
+#define LTTNG_UST__TP_EXDATA_VAR8(a,b,c,d,e,f,g,h) __tp_data,b,d,f,h
+#define LTTNG_UST__TP_EXDATA_VAR10(a,b,c,d,e,f,g,h,i,j) __tp_data,b,d,f,h,j
+#define LTTNG_UST__TP_EXDATA_VAR12(a,b,c,d,e,f,g,h,i,j,k,l) __tp_data,b,d,f,h,j,l
+#define LTTNG_UST__TP_EXDATA_VAR14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) __tp_data,b,d,f,h,j,l,n
+#define LTTNG_UST__TP_EXDATA_VAR16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) __tp_data,b,d,f,h,j,l,n,p
+#define LTTNG_UST__TP_EXDATA_VAR18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) __tp_data,b,d,f,h,j,l,n,p,r
+#define LTTNG_UST__TP_EXDATA_VAR20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) __tp_data,b,d,f,h,j,l,n,p,r,t
/*
- * _TP_EXPROTO* extract tuples of type, var.
- * _TP_EXPROTO1 and _TP_EXDATA_PROTO1 are needed for -std=c99.
+ * LTTNG_UST__TP_EXPROTO* extract tuples of type, var.
+ * LTTNG_UST__TP_EXPROTO1 and LTTNG_UST__TP_EXDATA_PROTO1 are needed for -std=c99.
*/
-#define _TP_EXPROTO0() void
-#define _TP_EXPROTO1(a) void
-#define _TP_EXPROTO2(a,b) a b
-#define _TP_EXPROTO4(a,b,c,d) a b,c d
-#define _TP_EXPROTO6(a,b,c,d,e,f) a b,c d,e f
-#define _TP_EXPROTO8(a,b,c,d,e,f,g,h) a b,c d,e f,g h
-#define _TP_EXPROTO10(a,b,c,d,e,f,g,h,i,j) a b,c d,e f,g h,i j
-#define _TP_EXPROTO12(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_EXPROTO14(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_EXPROTO16(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_EXPROTO18(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_EXPROTO20(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
-
-#define _TP_EXDATA_PROTO0() void *__tp_data
-#define _TP_EXDATA_PROTO1(a) void *__tp_data
-#define _TP_EXDATA_PROTO2(a,b) void *__tp_data,a b
-#define _TP_EXDATA_PROTO4(a,b,c,d) void *__tp_data,a b,c d
-#define _TP_EXDATA_PROTO6(a,b,c,d,e,f) void *__tp_data,a b,c d,e f
-#define _TP_EXDATA_PROTO8(a,b,c,d,e,f,g,h) void *__tp_data,a b,c d,e f,g h
-#define _TP_EXDATA_PROTO10(a,b,c,d,e,f,g,h,i,j) void *__tp_data,a b,c d,e f,g h,i j
-#define _TP_EXDATA_PROTO12(a,b,c,d,e,f,g,h,i,j,k,l) void *__tp_data,a b,c d,e f,g h,i j,k l
-#define _TP_EXDATA_PROTO14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) void *__tp_data,a b,c d,e f,g h,i j,k l,m n
-#define _TP_EXDATA_PROTO16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p
-#define _TP_EXDATA_PROTO18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p,q r
-#define _TP_EXDATA_PROTO20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p,q r,s t
+#define LTTNG_UST__TP_EXPROTO0() void
+#define LTTNG_UST__TP_EXPROTO1(a) void
+#define LTTNG_UST__TP_EXPROTO2(a,b) a b
+#define LTTNG_UST__TP_EXPROTO4(a,b,c,d) a b,c d
+#define LTTNG_UST__TP_EXPROTO6(a,b,c,d,e,f) a b,c d,e f
+#define LTTNG_UST__TP_EXPROTO8(a,b,c,d,e,f,g,h) a b,c d,e f,g h
+#define LTTNG_UST__TP_EXPROTO10(a,b,c,d,e,f,g,h,i,j) a b,c d,e f,g h,i j
+#define LTTNG_UST__TP_EXPROTO12(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 LTTNG_UST__TP_EXPROTO14(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 LTTNG_UST__TP_EXPROTO16(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 LTTNG_UST__TP_EXPROTO18(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 LTTNG_UST__TP_EXPROTO20(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
+
+#define LTTNG_UST__TP_EXDATA_PROTO0() void *__tp_data
+#define LTTNG_UST__TP_EXDATA_PROTO1(a) void *__tp_data
+#define LTTNG_UST__TP_EXDATA_PROTO2(a,b) void *__tp_data,a b
+#define LTTNG_UST__TP_EXDATA_PROTO4(a,b,c,d) void *__tp_data,a b,c d
+#define LTTNG_UST__TP_EXDATA_PROTO6(a,b,c,d,e,f) void *__tp_data,a b,c d,e f
+#define LTTNG_UST__TP_EXDATA_PROTO8(a,b,c,d,e,f,g,h) void *__tp_data,a b,c d,e f,g h
+#define LTTNG_UST__TP_EXDATA_PROTO10(a,b,c,d,e,f,g,h,i,j) void *__tp_data,a b,c d,e f,g h,i j
+#define LTTNG_UST__TP_EXDATA_PROTO12(a,b,c,d,e,f,g,h,i,j,k,l) void *__tp_data,a b,c d,e f,g h,i j,k l
+#define LTTNG_UST__TP_EXDATA_PROTO14(a,b,c,d,e,f,g,h,i,j,k,l,m,n) void *__tp_data,a b,c d,e f,g h,i j,k l,m n
+#define LTTNG_UST__TP_EXDATA_PROTO16(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p
+#define LTTNG_UST__TP_EXDATA_PROTO18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r) void *__tp_data,a b,c d,e f,g h,i j,k l,m n,o p,q r
+#define LTTNG_UST__TP_EXDATA_PROTO20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) void *__tp_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_EXPROTO, N)(__VA_ARGS__))
-#define _TP_VAR_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXVAR, N)(__VA_ARGS__))
-#define _TP_DATA_PROTO_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXDATA_PROTO, N)(__VA_ARGS__))
-#define _TP_DATA_VAR_N(N, ...) _TP_PARAMS(_TP_COMBINE_TOKENS(_TP_EXDATA_VAR, N)(__VA_ARGS__))
-#define _TP_ARGS_PROTO(...) _TP_PROTO_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
-#define _TP_ARGS_VAR(...) _TP_VAR_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
-#define _TP_ARGS_DATA_PROTO(...) _TP_DATA_PROTO_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
-#define _TP_ARGS_DATA_VAR(...) _TP_DATA_VAR_N(_TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
-#define _TP_PARAMS(...) __VA_ARGS__
+#define LTTNG_UST__TP_NARGS(...) LTTNG_UST___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 LTTNG_UST___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 LTTNG_UST__TP_PROTO_N(N, ...) LTTNG_UST__TP_PARAMS(LTTNG_UST__TP_COMBINE_TOKENS(LTTNG_UST__TP_EXPROTO, N)(__VA_ARGS__))
+#define LTTNG_UST__TP_VAR_N(N, ...) LTTNG_UST__TP_PARAMS(LTTNG_UST__TP_COMBINE_TOKENS(LTTNG_UST__TP_EXVAR, N)(__VA_ARGS__))
+#define LTTNG_UST__TP_DATA_PROTO_N(N, ...) LTTNG_UST__TP_PARAMS(LTTNG_UST__TP_COMBINE_TOKENS(LTTNG_UST__TP_EXDATA_PROTO, N)(__VA_ARGS__))
+#define LTTNG_UST__TP_DATA_VAR_N(N, ...) LTTNG_UST__TP_PARAMS(LTTNG_UST__TP_COMBINE_TOKENS(LTTNG_UST__TP_EXDATA_VAR, N)(__VA_ARGS__))
+#define LTTNG_UST__TP_ARGS_PROTO(...) LTTNG_UST__TP_PROTO_N(LTTNG_UST__TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
+#define LTTNG_UST__TP_ARGS_VAR(...) LTTNG_UST__TP_VAR_N(LTTNG_UST__TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
+#define LTTNG_UST__TP_ARGS_DATA_PROTO(...) LTTNG_UST__TP_DATA_PROTO_N(LTTNG_UST__TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
+#define LTTNG_UST__TP_ARGS_DATA_VAR(...) LTTNG_UST__TP_DATA_VAR_N(LTTNG_UST__TP_NARGS(0, ##__VA_ARGS__), ##__VA_ARGS__)
+#define LTTNG_UST__TP_PARAMS(...) __VA_ARGS__
+
+/*
+ * sizeof(#_provider) - 1 : length of the provider string (excluding \0).
+ * sizeof(#_name) - 1 : length of the name string (excluding \0).
+ * + 1 : separator between provider and event name.
+ *
+ * Upper bound (inclusive) is LTTNG_UST_TRACEPOINT_NAME_LEN_MAX - 1 to
+ * account for \0.
+ *
+ * The comparison is:
+ * left hand side: sizeof(#_provider) - 1 + sizeof(#_name) - 1 + 1
+ * right hand side: LTTNG_UST_TRACEPOINT_NAME_LEN_MAX - 1
+ * operator: <= (inclusive)
+ * Simplified in the code below.
+ */
+#define lttng_ust_tracepoint_validate_name_len(_provider, _name) \
+ lttng_ust_static_assert(sizeof(#_provider) + sizeof(#_name) <= LTTNG_UST_TRACEPOINT_NAME_LEN_MAX, \
+ "Tracepoint name length is too long", \
+ Tracepoint_name_length_is_too_long)
/*
* The tracepoint cb is marked always inline so we can distinguish
* between caller's ip addresses within the probe using the return
* address.
*/
-#define _DECLARE_TRACEPOINT(_provider, _name, ...) \
-extern struct lttng_ust_tracepoint __tracepoint_##_provider##___##_name; \
-static inline __attribute__((always_inline, unused)) lttng_ust_notrace \
-void __tracepoint_cb_##_provider##___##_name(_TP_ARGS_PROTO(__VA_ARGS__)); \
+#define LTTNG_UST__DECLARE_TRACEPOINT(_provider, _name, ...) \
+extern struct lttng_ust_tracepoint lttng_ust_tracepoint_##_provider##___##_name \
+ LTTNG_UST__TRACEPOINT_DEFINITION_VISIBILITY; \
+static inline \
+void lttng_ust_tracepoint_cb_##_provider##___##_name(LTTNG_UST__TP_ARGS_PROTO(__VA_ARGS__)) \
+ __attribute__((always_inline, unused)) lttng_ust_notrace; \
static \
-void __tracepoint_cb_##_provider##___##_name(_TP_ARGS_PROTO(__VA_ARGS__)) \
+void lttng_ust_tracepoint_cb_##_provider##___##_name(LTTNG_UST__TP_ARGS_PROTO(__VA_ARGS__)) \
{ \
- struct lttng_ust_tracepoint_probe *__tp_probe; \
+ struct lttng_ust_tracepoint_probe *__tp_probe; \
\
- if (caa_unlikely(!TP_RCU_LINK_TEST())) \
+ if (caa_unlikely(!LTTNG_UST_TP_RCU_LINK_TEST())) \
return; \
- tp_rcu_read_lock_bp(); \
- __tp_probe = tp_rcu_dereference_bp(__tracepoint_##_provider##___##_name.probes); \
+ lttng_ust_tp_rcu_read_lock(); \
+ __tp_probe = lttng_ust_tp_rcu_dereference(lttng_ust_tracepoint_##_provider##___##_name.probes); \
if (caa_unlikely(!__tp_probe)) \
goto end; \
do { \
void (*__tp_cb)(void) = __tp_probe->func; \
void *__tp_data = __tp_probe->data; \
\
- URCU_FORCE_CAST(void (*)(_TP_ARGS_DATA_PROTO(__VA_ARGS__)), __tp_cb) \
- (_TP_ARGS_DATA_VAR(__VA_ARGS__)); \
+ URCU_FORCE_CAST(void (*)(LTTNG_UST__TP_ARGS_DATA_PROTO(__VA_ARGS__)), __tp_cb) \
+ (LTTNG_UST__TP_ARGS_DATA_VAR(__VA_ARGS__)); \
} while ((++__tp_probe)->func); \
end: \
- tp_rcu_read_unlock_bp(); \
+ lttng_ust_tp_rcu_read_unlock(); \
} \
-static inline lttng_ust_notrace \
-void __tracepoint_register_##_provider##___##_name(char *name, \
- void (*func)(void), void *data); \
static inline \
-void __tracepoint_register_##_provider##___##_name(char *name, \
+void lttng_ust_tracepoint_register_##_provider##___##_name(char *provider_name, char *event_name, \
+ void (*func)(void), void *data) \
+ lttng_ust_notrace; \
+static inline \
+void lttng_ust_tracepoint_register_##_provider##___##_name(char *provider_name, char *event_name, \
void (*func)(void), void *data) \
{ \
- __tracepoint_probe_register(name, func, data, \
- __tracepoint_##_provider##___##_name.signature); \
+ lttng_ust_tracepoint_provider_register(provider_name, event_name, func, data, \
+ lttng_ust_tracepoint_##_provider##___##_name.signature); \
} \
-static inline lttng_ust_notrace \
-void __tracepoint_unregister_##_provider##___##_name(char *name, \
- void (*func)(void), void *data); \
static inline \
-void __tracepoint_unregister_##_provider##___##_name(char *name, \
+void lttng_ust_tracepoint_unregister_##_provider##___##_name(char *provider_name, char *event_name, \
+ void (*func)(void), void *data) \
+ lttng_ust_notrace; \
+static inline \
+void lttng_ust_tracepoint_unregister_##_provider##___##_name(char *provider_name, char *event_name, \
void (*func)(void), void *data) \
{ \
- __tracepoint_probe_unregister(name, func, data); \
+ lttng_ust_tracepoint_provider_unregister(provider_name, event_name, func, data); \
}
-extern int __tracepoint_probe_register(const char *name, void (*func)(void),
- void *data, const char *signature);
-extern int __tracepoint_probe_unregister(const char *name, void (*func)(void),
- void *data);
+/*
+ * Registration of tracepoint provider probe functions with
+ * lttng_ust_tracepoint_provider_register, unregistration with
+ * lttng_ust_tracepoint_provider_unregister.
+ */
+int lttng_ust_tracepoint_provider_register(const char *provider_name, const char *event_name,
+ void (*func)(void), void *data, const char *signature);
+int lttng_ust_tracepoint_provider_unregister(const char *provider_name, const char *event_name,
+ void (*func)(void), void *data);
+
+/*
+ * Registration of tracepoint instrumentation modules with lttng_ust_tracepoint_module_register,
+ * unregistration with lttng_ust_tracepoint_module_unregister.
+ */
+int lttng_ust_tracepoint_module_register(struct lttng_ust_tracepoint * const *tracepoints_start,
+ int tracepoints_count);
+int lttng_ust_tracepoint_module_unregister(struct lttng_ust_tracepoint * const *tracepoints_start);
/*
* tracepoint dynamic linkage handling (callbacks). Hidden visibility:
* shared across objects in a module/main executable.
+ *
+ * IMPORTANT: this structure is part of the ABI between instrumented
+ * applications and UST. Fields need to be only added at the end, never
+ * reordered, never removed.
+ *
+ * The field @struct_size should be used to determine the size of the
+ * structure. It should be queried before using additional fields added
+ * at the end of the structure.
*/
struct lttng_ust_tracepoint_dlopen {
+ uint32_t struct_size;
+
void *liblttngust_handle;
- int (*tracepoint_register_lib)(struct lttng_ust_tracepoint * const *tracepoints_start,
+ int (*lttng_ust_tracepoint_module_register)(struct lttng_ust_tracepoint * const *tracepoints_start,
int tracepoints_count);
- int (*tracepoint_unregister_lib)(struct lttng_ust_tracepoint * const *tracepoints_start);
-#ifndef _LGPL_SOURCE
- void (*rcu_read_lock_sym_bp)(void);
- void (*rcu_read_unlock_sym_bp)(void);
- void *(*rcu_dereference_sym_bp)(void *p);
-#endif
-};
+ int (*lttng_ust_tracepoint_module_unregister)(struct lttng_ust_tracepoint * const *tracepoints_start);
+ void (*rcu_read_lock_sym)(void);
+ void (*rcu_read_unlock_sym)(void);
+ void *(*rcu_dereference_sym)(void *p);
-extern struct lttng_ust_tracepoint_dlopen tracepoint_dlopen;
+ /* End of base ABI. Fields below should be used after checking struct_size. */
+};
-#if defined(TRACEPOINT_DEFINE) || defined(TRACEPOINT_CREATE_PROBES)
+extern struct lttng_ust_tracepoint_dlopen lttng_ust_tracepoint_dlopen;
+extern struct lttng_ust_tracepoint_dlopen *lttng_ust_tracepoint_dlopen_ptr;
/*
* 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).
*/
-int __tracepoint_registered
+int lttng_ust_tracepoint_registered
__attribute__((weak, visibility("hidden")));
-int __tracepoint_ptrs_registered
+int lttng_ust_tracepoint_ptrs_registered
__attribute__((weak, visibility("hidden")));
-struct lttng_ust_tracepoint_dlopen tracepoint_dlopen
+struct lttng_ust_tracepoint_dlopen lttng_ust_tracepoint_dlopen
+ __attribute__((weak, visibility("hidden"))) = {
+ .struct_size = sizeof(struct lttng_ust_tracepoint_dlopen),
+};
+/*
+ * Deal with gcc O1 optimisation issues with weak hidden symbols. gcc
+ * 4.8 and prior does not have the same behavior for symbol scoping on
+ * 32-bit powerpc depending on the object size: symbols for objects of 8
+ * bytes or less have the same address throughout a module, whereas they
+ * have different addresses between compile units for objects larger
+ * than 8 bytes. Add this pointer indirection to ensure that the symbol
+ * scoping match that of the other weak hidden symbols found in this
+ * header.
+ */
+struct lttng_ust_tracepoint_dlopen *lttng_ust_tracepoint_dlopen_ptr
+ __attribute__((weak, visibility("hidden")));
+
+/*
+ * Tracepoint dynamic linkage handling (callbacks). Hidden visibility: shared
+ * across objects in a module/main executable. The callbacks are used to
+ * control and check if the destructors should be executed.
+ *
+ * IMPORTANT: this structure is part of the ABI between instrumented
+ * applications and UST. Fields need to be only added at the end, never
+ * reordered, never removed.
+ *
+ * The field @struct_size should be used to determine the size of the
+ * structure. It should be queried before using additional fields added
+ * at the end of the structure.
+ */
+struct lttng_ust_tracepoint_destructors_syms {
+ uint32_t struct_size;
+
+ void (*tracepoint_disable_destructors)(void);
+ int (*tracepoint_get_destructors_state)(void);
+
+ /* End of base ABI. Fields below should be used after checking struct_size. */
+};
+
+extern struct lttng_ust_tracepoint_destructors_syms lttng_ust_tracepoint_destructors_syms;
+extern struct lttng_ust_tracepoint_destructors_syms *lttng_ust_tracepoint_destructors_syms_ptr;
+
+struct lttng_ust_tracepoint_destructors_syms lttng_ust_tracepoint_destructors_syms
+ __attribute__((weak, visibility("hidden"))) = {
+ .struct_size = sizeof(struct lttng_ust_tracepoint_destructors_syms),
+};
+struct lttng_ust_tracepoint_destructors_syms *lttng_ust_tracepoint_destructors_syms_ptr
__attribute__((weak, visibility("hidden")));
+static inline void tracepoint_disable_destructors(void)
+{
+ if (!lttng_ust_tracepoint_dlopen_ptr)
+ lttng_ust_tracepoint_dlopen_ptr = <tng_ust_tracepoint_dlopen;
+ if (!lttng_ust_tracepoint_destructors_syms_ptr)
+ lttng_ust_tracepoint_destructors_syms_ptr = <tng_ust_tracepoint_destructors_syms;
+ if (lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle
+ && lttng_ust_tracepoint_destructors_syms_ptr->tracepoint_disable_destructors)
+ lttng_ust_tracepoint_destructors_syms_ptr->tracepoint_disable_destructors();
+}
+
#ifndef _LGPL_SOURCE
-static inline void lttng_ust_notrace
-__tracepoint__init_urcu_sym(void);
static inline void
-__tracepoint__init_urcu_sym(void)
+lttng_ust_tracepoint__init_urcu_sym(void)
+ lttng_ust_notrace;
+static inline void
+lttng_ust_tracepoint__init_urcu_sym(void)
{
+ if (!lttng_ust_tracepoint_dlopen_ptr)
+ lttng_ust_tracepoint_dlopen_ptr = <tng_ust_tracepoint_dlopen;
/*
* Symbols below are needed by tracepoint call sites and probe
* providers.
*/
- if (!tracepoint_dlopen.rcu_read_lock_sym_bp)
- tracepoint_dlopen.rcu_read_lock_sym_bp =
+ if (!lttng_ust_tracepoint_dlopen_ptr->rcu_read_lock_sym)
+ lttng_ust_tracepoint_dlopen_ptr->rcu_read_lock_sym =
URCU_FORCE_CAST(void (*)(void),
- dlsym(tracepoint_dlopen.liblttngust_handle,
- "tp_rcu_read_lock_bp"));
- if (!tracepoint_dlopen.rcu_read_unlock_sym_bp)
- tracepoint_dlopen.rcu_read_unlock_sym_bp =
+ dlsym(lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle,
+ "lttng_ust_tp_rcu_read_lock"));
+ if (!lttng_ust_tracepoint_dlopen_ptr->rcu_read_unlock_sym)
+ lttng_ust_tracepoint_dlopen_ptr->rcu_read_unlock_sym =
URCU_FORCE_CAST(void (*)(void),
- dlsym(tracepoint_dlopen.liblttngust_handle,
- "tp_rcu_read_unlock_bp"));
- if (!tracepoint_dlopen.rcu_dereference_sym_bp)
- tracepoint_dlopen.rcu_dereference_sym_bp =
+ dlsym(lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle,
+ "lttng_ust_tp_rcu_read_unlock"));
+ if (!lttng_ust_tracepoint_dlopen_ptr->rcu_dereference_sym)
+ lttng_ust_tracepoint_dlopen_ptr->rcu_dereference_sym =
URCU_FORCE_CAST(void *(*)(void *p),
- dlsym(tracepoint_dlopen.liblttngust_handle,
- "tp_rcu_dereference_sym_bp"));
+ dlsym(lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle,
+ "lttng_ust_tp_rcu_dereference_sym"));
}
#else
-static inline void lttng_ust_notrace
-__tracepoint__init_urcu_sym(void);
static inline void
-__tracepoint__init_urcu_sym(void)
+lttng_ust_tracepoint__init_urcu_sym(void)
+ lttng_ust_notrace;
+static inline void
+lttng_ust_tracepoint__init_urcu_sym(void)
{
}
#endif
-static void lttng_ust_notrace __attribute__((constructor))
-__tracepoints__init(void);
+/*
+ * Use getenv() directly and bypass lttng-ust helper functions
+ * because we may not have access to lttng-ust shared libraries.
+ */
+#ifdef LTTNG_UST_DEBUG
+static inline
+bool lttng_ust_tracepoint_logging_debug_enabled(void)
+{
+ return true;
+}
+#else /* #ifdef LTTNG_UST_DEBUG */
+static inline
+bool lttng_ust_tracepoint_logging_debug_enabled(void)
+{
+ return getenv("LTTNG_UST_DEBUG");
+}
+#endif /* #ifdef LTTNG_UST_DEBUG */
+
+#ifdef LTTNG_UST_ABORT_ON_CRITICAL
+static inline
+bool lttng_ust_tracepoint_logging_abort_on_critical_enabled(void)
+{
+ return true;
+}
+#else /* #ifdef LTTNG_UST_ABORT_ON_CRITICAL */
+static inline
+bool lttng_ust_tracepoint_logging_abort_on_critical_enabled(void)
+{
+ return getenv("LTTNG_UST_ABORT_ON_CRITICAL");
+}
+#endif
+
+#define LTTNG_UST_TRACEPOINT_THIS_IP \
+ ({ __label__ here; here: &&here; })
+
+static void
+lttng_ust_tracepoints_print_disabled_message(void)
+{
+ if (lttng_ust_tracepoint_logging_debug_enabled())
+ fprintf(stderr, "lttng-ust-tracepoint [%ld]: Critical: dlopen() failed to find '%s', tracepoints in this binary won't be registered. "
+ "(at addr=%p in %s() at " __FILE__ ":" lttng_ust_stringify(__LINE__) ")\n",
+ (long) getpid(),
+ LTTNG_UST_TRACEPOINT_LIB_SONAME,
+ LTTNG_UST_TRACEPOINT_THIS_IP,
+ __func__);
+ if (lttng_ust_tracepoint_logging_abort_on_critical_enabled())
+ abort();
+}
+
+static void
+lttng_ust__tracepoints__init(void)
+ lttng_ust_notrace __attribute__((constructor(LTTNG_UST_CONSTRUCTOR_PRIO)));
static void
-__tracepoints__init(void)
+lttng_ust__tracepoints__init(void)
{
- if (__tracepoint_registered++)
+ if (lttng_ust_tracepoint_registered++) {
+ if (!lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle)
+ return;
+ lttng_ust_tracepoint__init_urcu_sym();
return;
+ }
- if (!tracepoint_dlopen.liblttngust_handle)
- tracepoint_dlopen.liblttngust_handle =
- dlopen("liblttng-ust-tracepoint.so.0", RTLD_NOW | RTLD_GLOBAL);
- if (!tracepoint_dlopen.liblttngust_handle)
+ if (!lttng_ust_tracepoint_dlopen_ptr)
+ lttng_ust_tracepoint_dlopen_ptr = <tng_ust_tracepoint_dlopen;
+ if (!lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle)
+ lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle =
+ dlopen(LTTNG_UST_TRACEPOINT_LIB_SONAME, RTLD_NOW | RTLD_GLOBAL);
+ if (!lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle) {
+ lttng_ust_tracepoints_print_disabled_message();
return;
- __tracepoint__init_urcu_sym();
+ }
+ lttng_ust_tracepoint__init_urcu_sym();
}
-static void lttng_ust_notrace __attribute__((destructor))
-__tracepoints__destroy(void);
static void
-__tracepoints__destroy(void)
+lttng_ust__tracepoints__destroy(void)
+ lttng_ust_notrace __attribute__((destructor(LTTNG_UST_CONSTRUCTOR_PRIO)));
+static void
+lttng_ust__tracepoints__destroy(void)
{
int ret;
- if (--__tracepoint_registered)
+ if (--lttng_ust_tracepoint_registered)
+ return;
+ if (!lttng_ust_tracepoint_dlopen_ptr)
+ lttng_ust_tracepoint_dlopen_ptr = <tng_ust_tracepoint_dlopen;
+ if (!lttng_ust_tracepoint_destructors_syms_ptr)
+ lttng_ust_tracepoint_destructors_syms_ptr = <tng_ust_tracepoint_destructors_syms;
+ if (!lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle)
+ return;
+ if (lttng_ust_tracepoint_ptrs_registered)
+ return;
+ /*
+ * Lookup if destructors must be executed using the new method.
+ */
+ if (lttng_ust_tracepoint_destructors_syms_ptr->tracepoint_get_destructors_state
+ && !lttng_ust_tracepoint_destructors_syms_ptr->tracepoint_get_destructors_state()) {
+ /*
+ * The tracepoint_get_destructors_state symbol was found with
+ * dlsym but its returned value is 0 meaning that destructors
+ * must not be executed.
+ */
return;
- if (tracepoint_dlopen.liblttngust_handle && !__tracepoint_ptrs_registered) {
- ret = dlclose(tracepoint_dlopen.liblttngust_handle);
- if (ret) {
- fprintf(stderr, "Error (%d) in dlclose\n", ret);
- abort();
- }
- memset(&tracepoint_dlopen, 0, sizeof(tracepoint_dlopen));
}
+ ret = dlclose(lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle);
+ if (ret) {
+ fprintf(stderr, "Error (%d) in dlclose\n", ret);
+ abort();
+ }
+ memset(lttng_ust_tracepoint_dlopen_ptr, 0, sizeof(*lttng_ust_tracepoint_dlopen_ptr));
}
+#if LTTNG_UST_COMPAT_API(0)
+# if defined(TRACEPOINT_DEFINE) && !defined(LTTNG_UST_TRACEPOINT_DEFINE)
+# define LTTNG_UST_TRACEPOINT_DEFINE
+# endif
+#endif /* #if LTTNG_UST_COMPAT_API(0) */
+
+#if LTTNG_UST_COMPAT_API(0)
+#define tracepoint lttng_ust_tracepoint
+#define do_tracepoint lttng_ust_do_tracepoint
+#define tracepoint_enabled lttng_ust_tracepoint_enabled
+#define TP_ARGS LTTNG_UST_TP_ARGS
+#endif /* #if LTTNG_UST_COMPAT_API(0) */
+
+#ifdef __cplusplus
+}
#endif
-#ifdef TRACEPOINT_DEFINE
+#endif /* _LTTNG_UST_TRACEPOINT_H */
+
+/* The following declarations must be outside re-inclusion protection. */
+
+#ifdef LTTNG_UST_TRACEPOINT_DEFINE
+
+#ifndef _LTTNG_UST_TRACEPOINT_DEFINE_ONCE
+#define _LTTNG_UST_TRACEPOINT_DEFINE_ONCE
+
+#ifdef __cplusplus
+extern "C" {
+#endif
/*
* 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 lttng_ust_tracepoint * const __start___tracepoints_ptrs[]
+extern struct lttng_ust_tracepoint * const __start_lttng_ust_tracepoints_ptrs[]
__attribute__((weak, visibility("hidden")));
-extern struct lttng_ust_tracepoint * const __stop___tracepoints_ptrs[]
+extern struct lttng_ust_tracepoint * const __stop_lttng_ust_tracepoints_ptrs[]
__attribute__((weak, visibility("hidden")));
/*
- * When TRACEPOINT_PROBE_DYNAMIC_LINKAGE is defined, we do not emit a
+ * When LTTNG_UST_TRACEPOINT_PROBE_DYNAMIC_LINKAGE is defined, we do not emit a
* unresolved symbol that requires the provider to be linked in. When
- * TRACEPOINT_PROBE_DYNAMIC_LINKAGE is not defined, we emit an
+ * LTTNG_UST_TRACEPOINT_PROBE_DYNAMIC_LINKAGE is not defined, we emit an
* unresolved symbol that depends on having the provider linked in,
* otherwise the linker complains. This deals with use of static
* libraries, ensuring that the linker does not remove the provider
* object from the executable.
*/
-#ifdef TRACEPOINT_PROBE_DYNAMIC_LINKAGE
-#define _TRACEPOINT_UNDEFINED_REF(provider) NULL
-#else /* TRACEPOINT_PROBE_DYNAMIC_LINKAGE */
-#define _TRACEPOINT_UNDEFINED_REF(provider) &__tracepoint_provider_##provider
-#endif /* TRACEPOINT_PROBE_DYNAMIC_LINKAGE */
+
+#if LTTNG_UST_COMPAT_API(0)
+# if defined(TRACEPOINT_PROBE_DYNAMIC_LINKAGE) && !defined(LTTNG_UST_TRACEPOINT_PROBE_DYNAMIC_LINKAGE)
+# define LTTNG_UST_TRACEPOINT_PROBE_DYNAMIC_LINKAGE
+# endif
+#endif /* #if LTTNG_UST_COMPAT_API(0) */
+
+#ifdef LTTNG_UST_TRACEPOINT_PROBE_DYNAMIC_LINKAGE
+#define LTTNG_UST__TRACEPOINT_UNDEFINED_REF(provider) NULL
+#else /* LTTNG_UST_TRACEPOINT_PROBE_DYNAMIC_LINKAGE */
+#define LTTNG_UST__TRACEPOINT_UNDEFINED_REF(provider) <tng_ust_tracepoint_provider_##provider
+#endif /* LTTNG_UST_TRACEPOINT_PROBE_DYNAMIC_LINKAGE */
/*
* Note: to allow PIC code, we need to allow the linker to update the pointers
- * in the __tracepoints_ptrs section.
+ * in the lttng_ust_tracepoints_ptrs section.
* Therefore, this section is _not_ const (read-only).
*/
-#define _TP_EXTRACT_STRING(...) #__VA_ARGS__
-
-#define _DEFINE_TRACEPOINT(_provider, _name, _args) \
- extern int __tracepoint_provider_##_provider; \
- static const char __tp_strtab_##_provider##___##_name[] \
- __attribute__((section("__tracepoints_strings"))) = \
- #_provider ":" #_name; \
- struct lttng_ust_tracepoint __tracepoint_##_provider##___##_name \
- __attribute__((section("__tracepoints"))) = \
- { \
- __tp_strtab_##_provider##___##_name, \
+#define LTTNG_UST__TP_EXTRACT_STRING(...) #__VA_ARGS__
+
+#undef LTTNG_UST__DEFINE_TRACEPOINT
+#define LTTNG_UST__DEFINE_TRACEPOINT(_provider, _name, _args) \
+ lttng_ust_tracepoint_validate_name_len(_provider, _name); \
+ extern int lttng_ust_tracepoint_provider_##_provider \
+ LTTNG_UST__TRACEPOINT_PROVIDER_DEFINITION_VISIBILITY; \
+ static const char lttng_ust_tp_provider_strtab_##_provider##___##_name[] \
+ __attribute__((section("lttng_ust_tracepoints_strings"))) = \
+ #_provider; \
+ static const char lttng_ust_tp_name_strtab_##_provider##___##_name[] \
+ __attribute__((section("lttng_ust_tracepoints_strings"))) = \
+ #_name; \
+ struct lttng_ust_tracepoint lttng_ust_tracepoint_##_provider##___##_name \
+ __attribute__((section("lttng_ust_tracepoints"))) \
+ LTTNG_UST__TRACEPOINT_DEFINITION_VISIBILITY = { \
+ sizeof(struct lttng_ust_tracepoint), \
+ lttng_ust_tp_provider_strtab_##_provider##___##_name, \
+ lttng_ust_tp_name_strtab_##_provider##___##_name, \
0, \
NULL, \
- _TRACEPOINT_UNDEFINED_REF(_provider), \
- _TP_EXTRACT_STRING(_args), \
- { }, \
+ LTTNG_UST__TRACEPOINT_UNDEFINED_REF(_provider), \
+ LTTNG_UST__TP_EXTRACT_STRING(_args), \
}; \
static struct lttng_ust_tracepoint * \
- __tracepoint_ptr_##_provider##___##_name \
- __attribute__((used, section("__tracepoints_ptrs"))) = \
- &__tracepoint_##_provider##___##_name;
+ lttng_ust_tracepoint_ptr_##_provider##___##_name \
+ __attribute__((section("lttng_ust_tracepoints_ptrs"), used)) \
+ __lttng_ust_variable_attribute_no_sanitize_address = \
+ <tng_ust_tracepoint_##_provider##___##_name;
-static void lttng_ust_notrace __attribute__((constructor))
-__tracepoints__ptrs_init(void);
static void
-__tracepoints__ptrs_init(void)
+lttng_ust__tracepoints__ptrs_init(void)
+ lttng_ust_notrace __attribute__((constructor(LTTNG_UST_CONSTRUCTOR_PRIO)));
+static void
+lttng_ust__tracepoints__ptrs_init(void)
{
- if (__tracepoint_ptrs_registered++)
+ if (lttng_ust_tracepoint_ptrs_registered++)
return;
- if (!tracepoint_dlopen.liblttngust_handle)
- tracepoint_dlopen.liblttngust_handle =
- dlopen("liblttng-ust-tracepoint.so.0", RTLD_NOW | RTLD_GLOBAL);
- if (!tracepoint_dlopen.liblttngust_handle)
+ if (!lttng_ust_tracepoint_dlopen_ptr)
+ lttng_ust_tracepoint_dlopen_ptr = <tng_ust_tracepoint_dlopen;
+ if (!lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle)
+ lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle =
+ dlopen(LTTNG_UST_TRACEPOINT_LIB_SONAME, RTLD_NOW | RTLD_GLOBAL);
+ if (!lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle) {
+ lttng_ust_tracepoints_print_disabled_message();
return;
- tracepoint_dlopen.tracepoint_register_lib =
+ }
+ if (!lttng_ust_tracepoint_destructors_syms_ptr)
+ lttng_ust_tracepoint_destructors_syms_ptr = <tng_ust_tracepoint_destructors_syms;
+ lttng_ust_tracepoint_dlopen_ptr->lttng_ust_tracepoint_module_register =
URCU_FORCE_CAST(int (*)(struct lttng_ust_tracepoint * const *, int),
- dlsym(tracepoint_dlopen.liblttngust_handle,
- "tracepoint_register_lib"));
- tracepoint_dlopen.tracepoint_unregister_lib =
+ dlsym(lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle,
+ "lttng_ust_tracepoint_module_register"));
+ lttng_ust_tracepoint_dlopen_ptr->lttng_ust_tracepoint_module_unregister =
URCU_FORCE_CAST(int (*)(struct lttng_ust_tracepoint * const *),
- dlsym(tracepoint_dlopen.liblttngust_handle,
- "tracepoint_unregister_lib"));
- __tracepoint__init_urcu_sym();
- if (tracepoint_dlopen.tracepoint_register_lib) {
- tracepoint_dlopen.tracepoint_register_lib(__start___tracepoints_ptrs,
- __stop___tracepoints_ptrs -
- __start___tracepoints_ptrs);
+ dlsym(lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle,
+ "lttng_ust_tracepoint_module_unregister"));
+ lttng_ust_tracepoint_destructors_syms_ptr->tracepoint_disable_destructors =
+ URCU_FORCE_CAST(void (*)(void),
+ dlsym(lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle,
+ "lttng_ust_tp_disable_destructors"));
+ lttng_ust_tracepoint_destructors_syms_ptr->tracepoint_get_destructors_state =
+ URCU_FORCE_CAST(int (*)(void),
+ dlsym(lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle,
+ "lttng_ust_tp_get_destructors_state"));
+ lttng_ust_tracepoint__init_urcu_sym();
+ if (lttng_ust_tracepoint_dlopen_ptr->lttng_ust_tracepoint_module_register) {
+ lttng_ust_tracepoint_dlopen_ptr->lttng_ust_tracepoint_module_register(__start_lttng_ust_tracepoints_ptrs,
+ __stop_lttng_ust_tracepoints_ptrs -
+ __start_lttng_ust_tracepoints_ptrs);
}
}
-static void lttng_ust_notrace __attribute__((destructor))
-__tracepoints__ptrs_destroy(void);
static void
-__tracepoints__ptrs_destroy(void)
+lttng_ust__tracepoints__ptrs_destroy(void)
+ lttng_ust_notrace __attribute__((destructor(LTTNG_UST_CONSTRUCTOR_PRIO)));
+static void
+lttng_ust__tracepoints__ptrs_destroy(void)
{
int ret;
- if (--__tracepoint_ptrs_registered)
+ if (--lttng_ust_tracepoint_ptrs_registered)
return;
- if (tracepoint_dlopen.tracepoint_unregister_lib)
- tracepoint_dlopen.tracepoint_unregister_lib(__start___tracepoints_ptrs);
- if (tracepoint_dlopen.liblttngust_handle && !__tracepoint_registered) {
- ret = dlclose(tracepoint_dlopen.liblttngust_handle);
+ if (!lttng_ust_tracepoint_dlopen_ptr)
+ lttng_ust_tracepoint_dlopen_ptr = <tng_ust_tracepoint_dlopen;
+ if (!lttng_ust_tracepoint_destructors_syms_ptr)
+ lttng_ust_tracepoint_destructors_syms_ptr = <tng_ust_tracepoint_destructors_syms;
+ if (lttng_ust_tracepoint_dlopen_ptr->lttng_ust_tracepoint_module_unregister)
+ lttng_ust_tracepoint_dlopen_ptr->lttng_ust_tracepoint_module_unregister(__start_lttng_ust_tracepoints_ptrs);
+ if (lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle
+ && lttng_ust_tracepoint_destructors_syms_ptr->tracepoint_get_destructors_state
+ && lttng_ust_tracepoint_destructors_syms_ptr->tracepoint_get_destructors_state()
+ && !lttng_ust_tracepoint_ptrs_registered) {
+ ret = dlclose(lttng_ust_tracepoint_dlopen_ptr->liblttngust_handle);
if (ret) {
fprintf(stderr, "Error (%d) in dlclose\n", ret);
abort();
}
- memset(&tracepoint_dlopen, 0, sizeof(tracepoint_dlopen));
+ memset(lttng_ust_tracepoint_dlopen_ptr, 0, sizeof(*lttng_ust_tracepoint_dlopen_ptr));
}
}
-#else /* TRACEPOINT_DEFINE */
+#ifdef __cplusplus
+}
+#endif
-#define _DEFINE_TRACEPOINT(_provider, _name, _args)
+#endif /* _LTTNG_UST_TRACEPOINT_DEFINE_ONCE */
-#endif /* #else TRACEPOINT_DEFINE */
+#else /* LTTNG_UST_TRACEPOINT_DEFINE */
-#ifdef __cplusplus
-}
+#undef LTTNG_UST__DEFINE_TRACEPOINT
+#define LTTNG_UST__DEFINE_TRACEPOINT(_provider, _name, _args)
+
+#endif /* #else LTTNG_UST_TRACEPOINT_DEFINE */
+
+/*
+ * LTTNG_UST_TRACEPOINT_HIDDEN_DEFINITION: Define this before including
+ * a tracepoint instrumentation header to hide symbols associated with
+ * tracepoint module instrumentation. This is useful if all compile
+ * units using the lttng_ust_tracepoint(),
+ * lttng_ust_tracepoint_enabled() and lttng_ust_do_tracepoint() macros
+ * is within the same module as the compile unit including the
+ * tracepoint header after defining LTTNG_UST_TRACEPOINT_DEFINE.
+ */
+
+#undef LTTNG_UST__TRACEPOINT_DEFINITION_VISIBILITY
+#ifdef LTTNG_UST_TRACEPOINT_HIDDEN_DEFINITION
+#define LTTNG_UST__TRACEPOINT_DEFINITION_VISIBILITY __attribute__((visibility("hidden")))
+#else
+#define LTTNG_UST__TRACEPOINT_DEFINITION_VISIBILITY __attribute__((visibility("default")))
#endif
-#endif /* _LTTNG_TRACEPOINT_H */
+/*
+ * LTTNG_UST_TRACEPOINT_PROVIDER_HIDDEN_DEFINITION: Define this before
+ * including a tracepoint instrumentation header to hide symbols
+ * associated with the tracepoint provider. This is useful if the
+ * tracepoint definition (including the header after defining
+ * LTTNG_UST_TRACEPOINT_DEFINE) is in the same module as the provider
+ * (including the header after defining
+ * LTTNG_UST_TRACEPOINT_CREATE_PROBES).
+ */
+#undef LTTNG_UST__TRACEPOINT_PROVIDER_DEFINITION_VISIBILITY
+#ifdef LTTNG_UST_TRACEPOINT_PROVIDER_HIDDEN_DEFINITION
+#define LTTNG_UST__TRACEPOINT_PROVIDER_DEFINITION_VISIBILITY __attribute__((visibility("hidden")))
+#else
+#define LTTNG_UST__TRACEPOINT_PROVIDER_DEFINITION_VISIBILITY __attribute__((visibility("default")))
+#endif
-/* The following declarations must be outside re-inclusion protection. */
+#ifndef LTTNG_UST_TRACEPOINT_ENUM
-#ifndef TRACEPOINT_EVENT
+/*
+ * Tracepoint Enumerations
+ *
+ * The enumeration is a mapping between an integer, or range of integers, and
+ * a string. It can be used to have a more compact trace in cases where the
+ * possible values for a field are limited:
+ *
+ * An example:
+ *
+ * LTTNG_UST_TRACEPOINT_ENUM(someproject_component, enumname,
+ * LTTNG_UST_TP_ENUM_VALUES(
+ * lttng_ust_field_enum_value("even", 0)
+ * lttng_ust_field_enum_value("uneven", 1)
+ * lttng_ust_field_enum_range("twoto4", 2, 4)
+ * lttng_ust_field_enum_value("five", 5)
+ * )
+ * )
+ *
+ * Where "someproject_component" is the name of the component this enumeration
+ * belongs to and "enumname" identifies this enumeration. Inside the
+ * LTTNG_UST_TP_ENUM_VALUES macro is the actual mapping. Each string value can map
+ * to either a single value with lttng_ust_field_enum_value or a range of values
+ * with lttng_ust_field_enum_range.
+ *
+ * Enumeration ranges may overlap, but the behavior is implementation-defined,
+ * each trace reader will handle overlapping as it wishes.
+ *
+ * That enumeration can then be used in a field inside the TP_FIELD macro using
+ * the following line:
+ *
+ * lttng_ust_field_enum(someproject_component, enumname, enumtype, enumfield, enumval)
+ *
+ * Where "someproject_component" and "enumname" match those in the
+ * LTTNG_UST_TRACEPOINT_ENUM, "enumtype" is a signed or unsigned integer type
+ * backing the enumeration, "enumfield" is the name of the field and
+ * "enumval" is the value.
+ */
+
+#define LTTNG_UST_TRACEPOINT_ENUM(provider, name, values)
+
+#if LTTNG_UST_COMPAT_API(0)
+#define TRACEPOINT_ENUM LTTNG_UST_TRACEPOINT_ENUM
+#endif /* #if LTTNG_UST_COMPAT_API(0) */
+
+#endif /* #ifndef LTTNG_UST_TRACEPOINT_ENUM */
+
+#ifndef LTTNG_UST_TRACEPOINT_EVENT
/*
- * How to use the TRACEPOINT_EVENT macro:
+ * How to use the LTTNG_UST_TRACEPOINT_EVENT macro:
*
* An example:
- *
- * TRACEPOINT_EVENT(someproject_component, event_name,
*
- * * TP_ARGS takes from 0 to 10 "type, field_name" pairs *
+ * LTTNG_UST_TRACEPOINT_EVENT(someproject_component, event_name,
+ *
+ * * LTTNG_UST_TP_ARGS takes from 0 to 10 "type, field_name" pairs *
*
- * TP_ARGS(int, arg0, void *, arg1, char *, string, size_t, strlen,
+ * LTTNG_UST_TP_ARGS(int, arg0, void *, arg1, char *, string, size_t, strlen,
* long *, arg4, size_t, arg4_len),
*
- * * TP_FIELDS describes the event payload layout in the trace *
+ * * LTTNG_UST_TP_FIELDS describes the event payload layout in the trace *
*
- * TP_FIELDS(
- * * Integer, printed in base 10 *
- * ctf_integer(int, field_a, arg0)
+ * LTTNG_UST_TP_FIELDS(
+ * * Integer, printed in base 10 *
+ * lttng_ust_field_integer(int, field_a, arg0)
*
- * * Integer, printed with 0x base 16 *
- * ctf_integer_hex(unsigned long, field_d, arg1)
+ * * Integer, printed with 0x base 16 *
+ * lttng_ust_field_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)
+ * * Enumeration *
+ * lttng_ust_field_enum(someproject_component, enum_name, int, field_e, arg0)
*
- * * String, printed as UTF8-encoded string *
- * ctf_string(field_e, string)
+ * * Array Sequence, printed as UTF8-encoded array of bytes *
+ * lttng_ust_field_array_text(char, field_b, string, FIXED_LEN)
+ * lttng_ust_field_sequence_text(char, field_c, string, size_t, strlen)
*
- * * Array sequence of signed integer values *
- * ctf_array(long, field_f, arg4, FIXED_LEN4)
- * ctf_sequence(long, field_g, arg4, size_t, arg4_len)
+ * * String, printed as UTF8-encoded string *
+ * lttng_ust_field_string(field_e, string)
+ *
+ * * Array sequence of signed integer values *
+ * lttng_ust_field_array(long, field_f, arg4, FIXED_LEN4)
+ * lttng_ust_field_sequence(long, field_g, arg4, size_t, arg4_len)
* )
* )
*
* the provider:event identifier is limited to 127 characters.
*/
-#define TRACEPOINT_EVENT(provider, name, args, fields) \
- _DECLARE_TRACEPOINT(provider, name, _TP_PARAMS(args)) \
- _DEFINE_TRACEPOINT(provider, name, _TP_PARAMS(args))
+#define LTTNG_UST_TRACEPOINT_EVENT(provider, name, args, fields) \
+ LTTNG_UST__DECLARE_TRACEPOINT(provider, name, LTTNG_UST__TP_PARAMS(args)) \
+ LTTNG_UST__DEFINE_TRACEPOINT(provider, name, LTTNG_UST__TP_PARAMS(args))
+
+#define LTTNG_UST_TRACEPOINT_EVENT_CLASS(provider, name, args, fields)
-#define TRACEPOINT_EVENT_CLASS(provider, name, args, fields)
+#define LTTNG_UST_TRACEPOINT_EVENT_INSTANCE(template_provider, template_name, provider, name, args) \
+ LTTNG_UST__DECLARE_TRACEPOINT(provider, name, LTTNG_UST__TP_PARAMS(args)) \
+ LTTNG_UST__DEFINE_TRACEPOINT(provider, name, LTTNG_UST__TP_PARAMS(args))
-#define TRACEPOINT_EVENT_INSTANCE(provider, _template, name, args) \
- _DECLARE_TRACEPOINT(provider, name, _TP_PARAMS(args)) \
- _DEFINE_TRACEPOINT(provider, name, _TP_PARAMS(args))
+#if LTTNG_UST_COMPAT_API(0)
+#define TRACEPOINT_EVENT LTTNG_UST_TRACEPOINT_EVENT
+#define TRACEPOINT_EVENT_CLASS LTTNG_UST_TRACEPOINT_EVENT_CLASS
+#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, args) \
+ LTTNG_UST_TRACEPOINT_EVENT_INSTANCE(_provider, _template, \
+ _provider, _name, LTTNG_UST__TP_PARAMS(args))
-#endif /* #ifndef TRACEPOINT_EVENT */
+#endif /* #if LTTNG_UST_COMPAT_API(0) */
-#ifndef TRACEPOINT_LOGLEVEL
+#endif /* #ifndef LTTNG_UST_TRACEPOINT_EVENT */
+
+#ifndef LTTNG_UST_TRACEPOINT_LOGLEVEL
/*
* Tracepoint Loglevels
* semantic. Loglevels 7 through 13 offer more fine-grained selection of
* debug information.
*
- * TRACE_EMERG 0
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_EMERG 0
* system is unusable
*
- * TRACE_ALERT 1
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_ALERT 1
* action must be taken immediately
*
- * TRACE_CRIT 2
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_CRIT 2
* critical conditions
*
- * TRACE_ERR 3
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_ERR 3
* error conditions
*
- * TRACE_WARNING 4
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_WARNING 4
* warning conditions
*
- * TRACE_NOTICE 5
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_NOTICE 5
* normal, but significant, condition
*
- * TRACE_INFO 6
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_INFO 6
* informational message
*
- * TRACE_DEBUG_SYSTEM 7
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_SYSTEM 7
* debug information with system-level scope (set of programs)
*
- * TRACE_DEBUG_PROGRAM 8
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROGRAM 8
* debug information with program-level scope (set of processes)
*
- * TRACE_DEBUG_PROCESS 9
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROCESS 9
* debug information with process-level scope (set of modules)
*
- * TRACE_DEBUG_MODULE 10
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_MODULE 10
* debug information with module (executable/library) scope (set of units)
*
- * TRACE_DEBUG_UNIT 11
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_UNIT 11
* debug information with compilation unit scope (set of functions)
*
- * TRACE_DEBUG_FUNCTION 12
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_FUNCTION 12
* debug information with function-level scope
*
- * TRACE_DEBUG_LINE 13
- * debug information with line-level scope (TRACEPOINT_EVENT default)
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_LINE 13
+ * debug information with line-level scope (LTTNG_UST_TRACEPOINT_EVENT default)
*
- * TRACE_DEBUG 14
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG 14
* debug-level message
*
- * Declare tracepoint loglevels for tracepoints. A TRACEPOINT_EVENT
- * should be declared prior to the the TRACEPOINT_LOGLEVEL for a given
+ * Declare tracepoint loglevels for tracepoints. A LTTNG_UST_TRACEPOINT_EVENT
+ * should be declared prior to the the LTTNG_UST_TRACEPOINT_LOGLEVEL for a given
* tracepoint name. The first field is the provider name, the second
* field is the name of the tracepoint, the third field is the loglevel
* name.
*
- * TRACEPOINT_LOGLEVEL(< [com_company_]project[_component] >, < event >,
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL(< [com_company_]project[_component] >, < event >,
* < loglevel_name >)
*
- * The TRACEPOINT_PROVIDER must be already declared before declaring a
- * TRACEPOINT_LOGLEVEL.
+ * The LTTNG_UST_TRACEPOINT_PROVIDER must be already declared before declaring a
+ * LTTNG_UST_TRACEPOINT_LOGLEVEL.
*/
enum {
- TRACE_EMERG = 0,
- TRACE_ALERT = 1,
- TRACE_CRIT = 2,
- TRACE_ERR = 3,
- TRACE_WARNING = 4,
- TRACE_NOTICE = 5,
- TRACE_INFO = 6,
- TRACE_DEBUG_SYSTEM = 7,
- TRACE_DEBUG_PROGRAM = 8,
- TRACE_DEBUG_PROCESS = 9,
- TRACE_DEBUG_MODULE = 10,
- TRACE_DEBUG_UNIT = 11,
- TRACE_DEBUG_FUNCTION = 12,
- TRACE_DEBUG_LINE = 13,
- TRACE_DEBUG = 14,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_EMERG = 0,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_ALERT = 1,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_CRIT = 2,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_ERR = 3,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_WARNING = 4,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_NOTICE = 5,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_INFO = 6,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_SYSTEM = 7,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROGRAM = 8,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROCESS = 9,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_MODULE = 10,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_UNIT = 11,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_FUNCTION = 12,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_LINE = 13,
+ LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG = 14,
};
-#define TRACEPOINT_LOGLEVEL(provider, name, loglevel)
+#define LTTNG_UST_TRACEPOINT_LOGLEVEL(provider, name, loglevel)
+
+#if LTTNG_UST_COMPAT_API(0)
+#define TRACEPOINT_LOGLEVEL LTTNG_UST_TRACEPOINT_LOGLEVEL
+
+#define TRACE_EMERG LTTNG_UST_TRACEPOINT_LOGLEVEL_EMERG
+#define TRACE_ALERT LTTNG_UST_TRACEPOINT_LOGLEVEL_ALERT
+#define TRACE_CRIT LTTNG_UST_TRACEPOINT_LOGLEVEL_CRIT
+#define TRACE_ERR LTTNG_UST_TRACEPOINT_LOGLEVEL_ERR
+#define TRACE_WARNING LTTNG_UST_TRACEPOINT_LOGLEVEL_WARNING
+#define TRACE_NOTICE LTTNG_UST_TRACEPOINT_LOGLEVEL_NOTICE
+#define TRACE_INFO LTTNG_UST_TRACEPOINT_LOGLEVEL_INFO
+#define TRACE_DEBUG_SYSTEM LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_SYSTEM
+#define TRACE_DEBUG_PROGRAM LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROGRAM
+#define TRACE_DEBUG_PROCESS LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROCESS
+#define TRACE_DEBUG_MODULE LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_MODULE
+#define TRACE_DEBUG_UNIT LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_UNIT
+#define TRACE_DEBUG_FUNCTION LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_FUNCTION
+#define TRACE_DEBUG_LINE LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_LINE
+#define TRACE_DEBUG LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG
+#endif
+
+#endif /* #ifndef LTTNG_UST_TRACEPOINT_LOGLEVEL */
-#endif /* #ifndef TRACEPOINT_LOGLEVEL */
+#ifndef LTTNG_UST_TRACEPOINT_MODEL_EMF_URI
-#ifndef TRACEPOINT_MODEL_EMF_URI
+#define LTTNG_UST_TRACEPOINT_MODEL_EMF_URI(provider, name, uri)
-#define TRACEPOINT_MODEL_EMF_URI(provider, name, uri)
+#if LTTNG_UST_COMPAT_API(0)
+#define TRACEPOINT_MODEL_EMF_URI LTTNG_UST_TRACEPOINT_MODEL_EMF_URI
+#endif
-#endif /* #ifndef TRACEPOINT_MODEL_EMF_URI */
+#endif /* #ifndef LTTNG_UST_TRACEPOINT_MODEL_EMF_URI */
projects / lttng-ust.git / blobdiff