diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/configure.in | 59 | ||||
| -rw-r--r-- | erts/emulator/Makefile.in | 4 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_bif_info.c | 3 | ||||
| -rw-r--r-- | erts/emulator/beam/erlang_lttng.c | 32 | ||||
| -rw-r--r-- | erts/emulator/beam/erlang_lttng.h | 36 | ||||
| -rw-r--r-- | erts/emulator/beam/lttng-wrapper.h | 83 |
6 files changed, 208 insertions, 9 deletions
diff --git a/erts/configure.in b/erts/configure.in index cae3843465..979106f01b 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -257,8 +257,8 @@ AS_HELP_STRING([--enable-m32-build], ],enable_m32_build=no) AC_ARG_WITH(dynamic-trace, -AS_HELP_STRING([--with-dynamic-trace={dtrace|systemtap}], - [specify use of dynamic trace framework, dtrace or systemtap]) +AS_HELP_STRING([--with-dynamic-trace={dtrace|lttng|systemtap}], + [specify use of dynamic trace framework, dtrace, lttng or systemtap]) AS_HELP_STRING([--without-dynamic-trace], [don't enable any dynamic tracing (default)])) @@ -268,6 +268,10 @@ fi case "$with_dynamic_trace" in no) DYNAMIC_TRACE_FRAMEWORK=;; + lttng) + AC_DEFINE(USE_LTTNG,[1], + [Define if you want to use lttng for dynamic tracing]) + DYNAMIC_TRACE_FRAMEWORK=lttng;; dtrace) AC_DEFINE(USE_DTRACE,[1], [Define if you want to use dtrace for dynamic tracing]) @@ -303,10 +307,12 @@ AS_HELP_STRING([--enable-vm-probes], fi) AC_SUBST(USE_VM_PROBES) -if test X"$use_vm_probes" = X"yes"; then - USE_VM_PROBES=yes - AC_DEFINE(USE_VM_PROBES,[1], - [Define to enable VM dynamic trace probes]) +if test X"$DYNAMIC_TRACE_FRAMEWORK" != X"lttng"; then + if test X"$use_vm_probes" = X"yes"; then + USE_VM_PROBES=yes + AC_DEFINE(USE_VM_PROBES,[1], + [Define to enable VM dynamic trace probes]) + fi fi AC_ARG_WITH(assumed-cache-line-size, @@ -3839,14 +3845,20 @@ dnl LM_FIND_EMU_CC dnl -dnl DTrace +dnl DTrace & LTTNG dnl case $DYNAMIC_TRACE_FRAMEWORK in dtrace|systemtap) AC_CHECK_TOOL(DTRACE, dtrace, none) test "$DTRACE" = "none" && AC_MSG_ERROR([No dtrace utility found.]); + enable_lttng_test=no enable_dtrace_test=yes;; - *) enable_dtrace_test=no;; + lttng) + enable_lttng_test=yes + enable_dtrace_test=no;; + *) + enable_lttng_test=no + enable_dtrace_test=no;; esac AC_SUBST(DTRACE) @@ -3913,6 +3925,37 @@ if test "$enable_dtrace_test" = "yes" ; then fi fi +if test "$enable_lttng_test" = "yes" ; then + AC_CHECK_HEADERS(lttng/tracepoint.h) + AC_CHECK_HEADERS(lttng/tracepoint-event.h) + dnl The macro tracepoint_enabled is not present in older lttng versions + dnl checking for tracepoint_enabled + AC_MSG_CHECKING([for tracepoint_enabled in lttng/tracepoint.h]) + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [#include <lttng/tracepoint.h> + #define TRACEPOINT_PROVIDER com_ericsson_otp + TRACEPOINT_EVENT( + com_ericsson_otp, + dummy, + TP_ARGS(int, my_int), + TP_FIELDS(ctf_integer(int, my_int, my_int))) + #define TRACEPOINT_CREATE_PROBES + #define TRACEPOINT_DEFINE], + [if(tracepoint_enabled(com_ericsson_otp,dummy)) do {} while(0)])], + [AC_MSG_RESULT([yes])], + [AC_MSG_ERROR([no (must be present)])]) + if test "x$ac_cv_header_lttng_tracepoint_h" = "xyes" \ + -a "x$ac_cv_header_lttng_tracepoint_event_h" = "xyes"; then + # No straight forward way to test for liblttng-ust when no public symbol exists, + # just add the lib. + LIBS="$LIBS -llttng-ust -ldl" + else + AC_MSG_ERROR([No LTTng support found.]) + fi +fi + + dnl dnl SSL, SSH and CRYPTO need the OpenSSL libraries dnl diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in index 12148ad9c7..3a5cfddc30 100644 --- a/erts/emulator/Makefile.in +++ b/erts/emulator/Makefile.in @@ -779,6 +779,8 @@ RUN_OBJS = \ $(OBJDIR)/erl_ptab.o $(OBJDIR)/erl_map.o \ $(OBJDIR)/erl_msacc.o +LTTNG_OBJS = $(OBJDIR)/erlang_lttng.o + ifeq ($(TARGET),win32) DRV_OBJS = \ $(OBJDIR)/registry_drv.o \ @@ -885,7 +887,7 @@ ifdef HIPE_ENABLED EXTRA_BASE_OBJS += $(HIPE_OBJS) endif -BASE_OBJS = $(EMU_OBJS) $(RUN_OBJS) $(OS_OBJS) $(EXTRA_BASE_OBJS) +BASE_OBJS = $(EMU_OBJS) $(RUN_OBJS) $(OS_OBJS) $(EXTRA_BASE_OBJS) $(LTTNG_OBJS) before_DTrace_OBJS = $(BASE_OBJS) $(DRV_OBJS) diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 8c748c9bf7..5c03e33b74 100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -126,6 +126,9 @@ static char erts_system_version[] = ("Erlang/OTP " ERLANG_OTP_RELEASE #ifdef ERTS_FRMPTR " [frame-pointer]" #endif +#ifdef USE_LTTNG + " [lttng]" +#endif #ifdef USE_DTRACE " [dtrace]" #endif diff --git a/erts/emulator/beam/erlang_lttng.c b/erts/emulator/beam/erlang_lttng.c new file mode 100644 index 0000000000..fce40eedc1 --- /dev/null +++ b/erts/emulator/beam/erlang_lttng.c @@ -0,0 +1,32 @@ +/* + * %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% + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#ifdef USE_LTTNG +#define TRACEPOINT_CREATE_PROBES +/* + * The header containing our TRACEPOINT_EVENTs. + */ +#define TRACEPOINT_DEFINE +#include "erlang_lttng.h" +#endif /* USE_LTTNG */ diff --git a/erts/emulator/beam/erlang_lttng.h b/erts/emulator/beam/erlang_lttng.h new file mode 100644 index 0000000000..48956cf242 --- /dev/null +++ b/erts/emulator/beam/erlang_lttng.h @@ -0,0 +1,36 @@ +/* + * %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% + */ + +#ifdef USE_LTTNG +#undef TRACEPOINT_PROVIDER +#define TRACEPOINT_PROVIDER com_ericsson_otp + +#undef TRACEPOINT_INCLUDE +#define TRACEPOINT_INCLUDE "erlang_lttng.h" + +#if !defined(__ERLANG_LTTNG_H__) || defined(TRACEPOINT_HEADER_MULTI_READ) +#define __ERLANG_LTTNG_H__ + +#include <lttng/tracepoint.h> + + +#endif /* __ERLANG_LTTNG_H__ */ +#include <lttng/tracepoint-event.h> +#endif /* USE_LTTNG */ diff --git a/erts/emulator/beam/lttng-wrapper.h b/erts/emulator/beam/lttng-wrapper.h new file mode 100644 index 0000000000..8362dc555e --- /dev/null +++ b/erts/emulator/beam/lttng-wrapper.h @@ -0,0 +1,83 @@ +/* + * %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_decl_procbuf(Name) \ + char Name[LTTNG_PROC_BUFFER_SZ] + +#define lttng_decl_portbuf(Name) \ + char Name[LTTNG_PORT_BUFFER_SZ] + +#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) + +/* 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__ */ |