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-rw-r--r--erts/emulator/beam/lttng-wrapper.h107
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diff --git a/erts/emulator/beam/lttng-wrapper.h b/erts/emulator/beam/lttng-wrapper.h
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+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 1996-2016. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifndef __LTTNG_WRAPPER_H__
+#define __LTTNG_WRAPPER_H__
+
+#ifdef USE_LTTNG
+
+#include "erlang_lttng.h"
+#define USE_LTTNG_VM_TRACEPOINTS
+
+#define LTTNG_BUFFER_SZ (256)
+#define LTTNG_PROC_BUFFER_SZ (16)
+#define LTTNG_PORT_BUFFER_SZ (20)
+#define LTTNG_MFA_BUFFER_SZ (256)
+
+#define lttng_decl_procbuf(Name) \
+ char Name[LTTNG_PROC_BUFFER_SZ]
+
+#define lttng_decl_portbuf(Name) \
+ char Name[LTTNG_PORT_BUFFER_SZ]
+
+#define lttng_decl_mfabuf(Name) \
+ char Name[LTTNG_MFA_BUFFER_SZ]
+
+#define lttng_decl_carrier_stats(Name) \
+ lttng_carrier_stats_t Name##_STATSTRUCT, *Name = &Name##_STATSTRUCT
+
+#define lttng_pid_to_str(pid, name) \
+ erts_snprintf(name, LTTNG_PROC_BUFFER_SZ, "%T", (pid))
+
+#define lttng_portid_to_str(pid, name) \
+ erts_snprintf(name, LTTNG_PORT_BUFFER_SZ, "%T", (pid))
+
+#define lttng_proc_to_str(p, name) \
+ lttng_pid_to_str(((p) ? (p)->common.id : ERTS_INVALID_PID), name)
+
+#define lttng_port_to_str(p, name) \
+ lttng_portid_to_str(((p) ? (p)->common.id : ERTS_INVALID_PORT), name)
+
+#define lttng_mfa_to_str(m,f,a, Name) \
+ erts_snprintf(Name, LTTNG_MFA_BUFFER_SZ, "%T:%T/%lu", (Eterm)(m), (Eterm)(f), (Uint)(a))
+
+#define lttng_proc_to_mfa_str(p, Name) \
+ do { \
+ if (ERTS_PROC_IS_EXITING((p))) { \
+ strcpy(Name, "<exiting>"); \
+ } else { \
+ BeamInstr *_fptr = find_function_from_pc((p)->i); \
+ if (_fptr) { \
+ lttng_mfa_to_str(_fptr[0],_fptr[1],_fptr[2], Name); \
+ } else { \
+ strcpy(Name, "<unknown>"); \
+ } \
+ } \
+ } while(0)
+
+/* ErtsRunQueue->ErtsSchedulerData->Uint */
+#define lttng_rq_to_id(RQ) \
+ (RQ)->scheduler->no
+
+#define LTTNG_ENABLED(Name) \
+ tracepoint_enabled(com_ericsson_otp, Name)
+
+/* include a special LTTNG_DO for do_tracepoint ? */
+#define LTTNG1(Name, Arg1) \
+ tracepoint(com_ericsson_otp, Name, (Arg1))
+
+#define LTTNG2(Name, Arg1, Arg2) \
+ tracepoint(com_ericsson_otp, Name, (Arg1), (Arg2))
+
+#define LTTNG3(Name, Arg1, Arg2, Arg3) \
+ tracepoint(com_ericsson_otp, Name, (Arg1), (Arg2), (Arg3))
+
+#define LTTNG4(Name, Arg1, Arg2, Arg3, Arg4) \
+ tracepoint(com_ericsson_otp, Name, (Arg1), (Arg2), (Arg3), (Arg4))
+
+#define LTTNG5(Name, Arg1, Arg2, Arg3, Arg4, Arg5) \
+ tracepoint(com_ericsson_otp, Name, (Arg1), (Arg2), (Arg3), (Arg4), (Arg5))
+
+#else /* USE_LTTNG */
+
+#define LTTNG1(Name, Arg1) do {} while(0)
+#define LTTNG2(Name, Arg1, Arg2) do {} while(0)
+#define LTTNG3(Name, Arg1, Arg2, Arg3) do {} while(0)
+#define LTTNG4(Name, Arg1, Arg2, Arg3, Arg4) do {} while(0)
+#define LTTNG5(Name, Arg1, Arg2, Arg3, Arg4, Arg5) do {} while(0)
+
+#endif /* USE_LTTNG */
+#endif /* __LTTNG_WRAPPER_H__ */