Documentation: ring buffer: SWITCH_FLUSH can be used when active
[lttng-ust.git] / configure.ac
1 # -*- Autoconf -*-
2 # Process this file with autoconf to produce a configure script.
3
4 AC_INIT([lttng-ust],[2.7.3],[mathieu dot desnoyers at efficios dot com])
5
6 # Following the numbering scheme proposed by libtool for the library version
7 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
8 # This is the library version of liblttng-ust.
9 AC_SUBST([LTTNG_UST_LIBRARY_VERSION], [0:0:0])
10 # note: remember to update tracepoint.h dlopen() to match this version
11 # number. TODO: eventually automate by exporting the major number.
12
13 # This is the library version of liblttng-ust-ctl, used internally by
14 # liblttng-ust, lttng-sessiond, and lttng-consumerd.
15 AC_SUBST([LTTNG_UST_CTL_LIBRARY_VERSION], [2:0:0])
16
17 AC_CONFIG_AUX_DIR([config])
18 AC_CANONICAL_TARGET
19 AC_CANONICAL_HOST
20 AC_CONFIG_MACRO_DIR([config])
21 AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip])
22 AM_MAINTAINER_MODE([enable])
23 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
24 AC_CONFIG_SRCDIR([include/lttng/tracepoint.h])
25
26 # Configuration options, which will be installed in the config.h
27 AC_CONFIG_HEADERS([config.h include/lttng/ust-config.h])
28 AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.])
29 AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])
30 AH_TEMPLATE([LTTNG_UST_HAVE_PERF_EVENT], [Perf event integration via perf_event.h])
31
32 # Compute minor/major/patchlevel version numbers
33 AC_PROG_SED
34 major_version=$(echo AC_PACKAGE_VERSION | sed 's/^\([[0-9]]\)*\.[[0-9]]*\.[[0-9]]*.*$/\1/')
35 minor_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.\([[0-9]]*\)\.[[0-9]]*.*$/\1/')
36 patchlevel_version=$(echo AC_PACKAGE_VERSION | sed 's/^[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\).*$/\1/')
37 AC_SUBST([MAJOR_VERSION], [$major_version])
38 AC_SUBST([MINOR_VERSION], [$minor_version])
39 AC_SUBST([PATCHLEVEL_VERSION], [$patchlevel_version])
40 AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [UST major version number])
41 AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [UST minor version number])
42 AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [UST patchlevel version number])
43
44 version_name="Herbe à Détourne"
45 version_description='Brewed with unrestrained amounts of Citra hop, the Herbe à Détourne is a fantastic New World Tripel brewed by "Dieu du Ciel!". Aromas of mango, cantaloupe melon and passion fruit, combined with a controlled bitter finish, unite in making this smooth golden-orange beer stand apart.'
46 version_description_c=$(echo $version_description | sed 's/"/\\"/g')
47
48 AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], [UST version name])
49 AC_DEFINE_UNQUOTED([VERSION_DESCRIPTION], ["$version_description_c"], [UST version description])
50
51 AC_PROG_GREP
52 AC_PROG_LN_S
53 # libtool link_all_deplibs fixup. See http://bugs.lttng.org/issues/321.
54 AC_ARG_ENABLE(libtool-linkdep-fixup,
55 AS_HELP_STRING([--disable-libtool-linkdep-fixup],
56 [disable the libtool fixup for linking all dependent libraries (link_all_deplibs)]),
57 libtool_fixup=$enableval,
58 libtool_fixup=yes)
59
60 AS_IF([test "x$libtool_fixup" = "xyes"],
61 [
62 libtool_m4="$srcdir/config/libtool.m4"
63 libtool_flag_pattern=".*link_all_deplibs\s*,\s*\$1\s*)"
64 AC_MSG_CHECKING([for occurence(s) of link_all_deplibs = no in $libtool_m4])
65 libtool_flag_pattern_count=$(grep -c "$libtool_flag_pattern\s*=\s*no" $libtool_m4)
66 AS_IF([test $libtool_flag_pattern_count -ne 0],
67 [
68 AC_MSG_RESULT([$libtool_flag_pattern_count])
69 AC_MSG_WARN([the detected libtool will not link all dependencies, forcing link_all_deplibs = unknown])
70 sed -i "s/\($libtool_flag_pattern\)\s*=\s*no/\1=unknown/g" $libtool_m4
71 ],
72 [
73 AC_MSG_RESULT([none])
74 ])
75 ])
76
77 AM_CONDITIONAL([NO_SHARED], [test "x$enable_shared" = "xno"])
78
79 # Checks for programs.
80 AC_PROG_CC
81 AC_PROG_CXX
82 AC_PROG_MAKE_SET
83 LT_INIT
84
85 # rw_PROG_CXX_WORKS
86 # Check whether the C++ compiler works.
87 AC_CACHE_CHECK([whether the C++ compiler works],
88 [rw_cv_prog_cxx_works],
89 [AC_LANG_PUSH([C++])
90 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
91 [check_cxx_designated_initializers=yes],
92 [rw_cv_prog_cxx_works=no])
93 if test "$check_cxx_designated_initializers" = "yes"; then
94 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
95 struct foo { int a; int b; };
96 void fct(void)
97 {
98 struct foo f = { .a = 0, .b = 1 };
99 }
100 ]])],[
101 rw_cv_prog_cxx_works=yes
102 ],[
103 rw_cv_prog_cxx_works=no
104 ])
105 fi
106 AC_LANG_POP([C++])])
107
108 AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
109
110 # Check if the compiler support weak symbols
111 AX_SYS_WEAK_ALIAS
112
113 if test "x${ax_cv_sys_weak_alias}" = "xno"; then
114 AC_MSG_ERROR([Your platform doesn't support weak symbols.])
115 fi
116
117 ## Checks for libraries.
118 AC_CHECK_LIB([dl], [dlopen],
119 [
120 have_libdl=yes
121 ],
122 [
123 #libdl not found, check for dlopen in libc.
124 AC_CHECK_LIB([c], [dlopen],
125 [
126 have_libc_dl=yes
127 ],
128 [
129 AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
130 ])
131 ])
132 AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
133 AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
134
135 AC_CHECK_LIB([pthread], [pthread_create])
136
137 # Check for dlfcn.h
138 AC_CHECK_HEADER([dlfcn.h])
139 AS_IF([test "x${ac_cv_header_dlfcn_h}" = "xyes"],
140 [AC_CHECK_DECLS([RTLD_DI_LINKMAP],,,
141 [#define _GNU_SOURCE /* Required on Linux to get GNU extensions */
142 #include <dlfcn.h>])
143 ],
144 [ac_cv_have_decl_RTLD_DI_LINKMAP="no"])
145 AM_CONDITIONAL([HAVE_DLINFO], [test "x${ac_cv_have_decl_RTLD_DI_LINKMAP}" = "xyes"])
146
147 # Checks for header files.
148 #AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
149
150 # Checks for typedefs, structures, and compiler characteristics.
151 AC_C_INLINE
152 #AC_TYPE_INT16_T
153 #AC_TYPE_INT32_T
154 #AC_TYPE_INT64_T
155 #AC_TYPE_INT8_T
156 #AC_TYPE_PID_T
157 #AC_TYPE_SIZE_T
158 #AC_TYPE_SSIZE_T
159 #AC_TYPE_UINT16_T
160 #AC_TYPE_UINT32_T
161 #AC_TYPE_UINT64_T
162 #AC_TYPE_UINT8_T
163 #AC_CHECK_TYPES([ptrdiff_t])
164
165 # Checks for library functions.
166 AC_FUNC_MALLOC
167 AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
168
169 CFLAGS="-Wall $CFLAGS"
170
171 # URCU
172
173 # urcu - check if we just find the headers it out of the box.
174 AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CPPFLAGS]=-Idir to specify their location.
175 This error can also occur when the liburcu package's configure script has not been run.])])
176
177 # urcu-cds - check that URCU Concurrent Data Structure lib is available to compilation
178 # Part of Userspace RCU library 0.7.2 or better.
179 AC_CHECK_LIB([urcu-cds], [_cds_lfht_new], [], [AC_MSG_ERROR([Cannot find
180 liburcu-cds lib, part of Userspace RCU 0.7 or better. Use [LDFLAGS]=-Ldir to specify its location.])])
181
182 AC_MSG_CHECKING([caa_likely()])
183 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
184 #include <urcu/compiler.h>
185 void fct(void)
186 {
187 if (caa_likely(1)) {
188 }
189 }
190 ]])],[
191 AC_MSG_RESULT([yes])
192 ],[
193 AC_MSG_RESULT([no])
194 AC_MSG_ERROR([Please upgrade your version of liburcu to 0.6.6 or better])
195
196 ])
197
198 # urcu - check that URCU lib is available to compilation
199 AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])
200
201 # urcu - check that URCU lib is at least version 0.6
202 AC_CHECK_LIB([urcu-bp], [call_rcu_bp], [], [AC_MSG_ERROR([liburcu 0.6 or newer is needed, please update your version or use [LDFLAGS]=-Ldir to specify the right location.])])
203
204 # optional linux/perf_event.h
205 AC_CHECK_HEADERS([linux/perf_event.h], [have_perf_event=yes], [])
206
207 # Perf event counters are only supported on x86 so far.
208 AC_MSG_CHECKING([UST support for architecture perf event counters])
209 case $host_cpu in
210 changequote(,)dnl
211 i[3456]86)
212 changequote([,])dnl
213 UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
214 x86_64) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
215 amd64) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=yes;;
216 *) UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS=no;;
217 esac
218 AC_MSG_RESULT([$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS])
219
220 AM_CONDITIONAL([HAVE_PERF_EVENT], [test "x$have_perf_event" = "xyes" -a "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"])
221
222 if test "x$have_perf_event" = "xyes" -a "x$UST_SUPPORT_FOR_ARCH_PERF_EVENT_COUNTERS" = "xyes"; then
223 AC_DEFINE([LTTNG_UST_HAVE_PERF_EVENT], [1])
224 fi
225
226 AC_MSG_CHECKING([host system alignment requirements])
227 case $host_cpu in
228 changequote(,)dnl
229 i[3456]86)
230 changequote([,])dnl
231 ;;
232 x86_64) ;;
233 amd64) ;;
234 powerpc) ;;
235 ppc64) ;;
236 ppc64le) ;;
237 powerpc64) ;;
238 powerpc64le) ;;
239 s390) NO_UNALIGNED_ACCESS=1 ;;
240 s390x) NO_UNALIGNED_ACCESS=1 ;;
241 arm*) NO_UNALIGNED_ACCESS=1 ;;
242 aarch64) NO_UNALIGNED_ACCESS=1 ;;
243 mips*) NO_UNALIGNED_ACCESS=1 ;;
244 tile*) NO_UNALIGNED_ACCESS=1 ;;
245 *)
246 UNSUPPORTED_ARCH=1
247 NO_UNALIGNED_ACCESS=1
248 ;;
249 esac
250 AC_MSG_RESULT([$host_cpu])
251
252 if test x$NO_UNALIGNED_ACCESS = x ; then
253 AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
254 fi
255
256 # Check for JNI header files if requested
257 AC_ARG_ENABLE([jni-interface],
258 [AS_HELP_STRING([--enable-jni-interface],[build JNI interface between C and Java. Needs Java include files [default=no]])],
259 [jni_interface=$enableval],
260 [jni_interface=no]
261 )
262
263 AM_CONDITIONAL([BUILD_JNI_INTERFACE], [test "x$jni_interface" = "xyes"])
264
265
266 AC_ARG_ENABLE([java-agent-jul],
267 [AS_HELP_STRING([--enable-java-agent-jul],[build the LTTng UST Java agent with JUL support [default=no]])],
268 [java_agent_jul=$enableval],
269 [java_agent_jul=no]
270 )
271
272 AC_ARG_ENABLE([java-agent-log4j],
273 [AS_HELP_STRING([--enable-java-agent-log4j],[build the LTTng UST Java agent with Log4j support [default=no]])],
274 [java_agent_log4j=$enableval],
275 [java_agent_log4j=no]
276 )
277
278 AC_ARG_ENABLE([java-agent-all],
279 [AS_HELP_STRING([--enable-java-agent-all],[build the LTTng UST Java agent with all supported backends [default=no]])],
280 [java_agent_jul=$enableval
281 java_agent_log4j=$enableval],
282 [:]
283 )
284
285
286 AM_CONDITIONAL([BUILD_JAVA_AGENT], [test "x$java_agent_jul" = "xyes" || test "x$java_agent_log4j" = "xyes"])
287 AM_CONDITIONAL([BUILD_JAVA_AGENT_WITH_JUL], [test "x$java_agent_jul" = "xyes"])
288 AM_CONDITIONAL([BUILD_JAVA_AGENT_WITH_LOG4J], [test "x$java_agent_log4j" = "xyes"])
289
290 if test "x$jni_interface" = "xyes" || test "x$java_agent_jul" = "xyes" || test "x$java_agent_log4j" = "xyes"; then
291 AX_JAVA_OPTIONS
292 AX_PROG_JAVAC
293 AX_PROG_JAVA
294 AX_PROG_JAR
295
296 AX_JNI_INCLUDE_DIR
297 for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS
298 do
299 CPPFLAGS="$CPPFLAGS -I$JNI_INCLUDE_DIR"
300 done
301
302 AX_PROG_JAVAH
303 fi
304
305 if test "x$java_agent_log4j" = "xyes"; then
306 AX_CHECK_CLASSPATH
307
308 AX_CHECK_CLASS(org.apache.log4j.Logger)
309
310 if test "x$ac_cv_class_org_apache_log4j_Logger" = "xno"; then
311 AC_MSG_ERROR([The UST Java agent support for log4j was requested but the Log4j classes were not found. Please specify the location of the Log4j jar via the Java CLASSPATH e.g: export CLASSPATH="/path/to/log4j.jar"])
312 fi
313 fi
314
315 # Option to build the python agent
316 AC_ARG_ENABLE([python-agent],
317 [AS_HELP_STRING([--enable-python-agent],[build the LTTng UST Python agent [default=no]])],
318 [python_agent=$enableval],
319 [:]
320 )
321 AM_CONDITIONAL([BUILD_PYTHON_AGENT], [test "x$python_agent" = "xyes"])
322 if test "x$python_agent" = "xyes"; then
323 AM_PATH_PYTHON([2.7])
324 fi
325
326 # sdt.h integration
327 AC_ARG_WITH([sdt],
328 [AS_HELP_STRING([--with-sdt],[provide SystemTap integration via sdt.h [default=no]])],
329 [with_sdt=$withval],
330 [with_sdt="no"]
331 )
332
333 AS_IF([test "x$with_sdt" = "xyes"],[
334 AC_MSG_CHECKING([STAP_PROBEV()])
335 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
336 #define SDT_USE_VARIADIC
337 #include <sys/sdt.h>
338 void fct(void)
339 {
340 STAP_PROBEV(provider,name,1,2,3,4,5,6,7,8,9,10);
341 }
342 ]])],[
343 AC_MSG_RESULT([yes])
344 AC_DEFINE([LTTNG_UST_HAVE_SDT_INTEGRATION], [1])
345 ],[
346 AC_MSG_RESULT([no])
347 AC_MSG_ERROR([The sdt.h integration was requested but the STAP_PROBEV define cannot be used. Make sure it is installed, and up to date, or use CPPFLAGS=-I/path/ to specify a non-standard path to sys/sdt.h])
348 ])
349 ])
350
351 AC_MSG_CHECKING([whether shared libraries are enabled])
352 AS_IF([test "x$enable_shared" = "xyes"],
353 [
354 AC_MSG_RESULT([yes])
355 ],
356 [
357 AC_MSG_RESULT([no])
358 AC_MSG_ERROR([LTTng-UST requires shared libraries to be enabled])
359 ])
360
361 AC_ARG_WITH([lttng-system-rundir],
362 AS_HELP_STRING([--with-lttng-system-rundir],
363 [Location of the system directory where LTTng-UST expects the system-wide lttng-sessiond runtime files. The default is "/var/run/lttng".]),
364 [lttng_system_rundir="$withval"],
365 [lttng_system_rundir="/var/run/lttng"])
366 AC_DEFINE_UNQUOTED([LTTNG_SYSTEM_RUNDIR], ["$lttng_system_rundir"],
367 [LTTng system runtime directory])
368
369 AC_CHECK_PROG([BUILD_GEN_TP_EXAMPLES],[python],["yes"])
370 AM_CONDITIONAL([BUILD_GEN_TP_EXAMPLES], [test $BUILD_GEN_TP_EXAMPLES], [Build examples requiring lttng-gen-tp])
371
372 AC_CONFIG_FILES([
373 Makefile
374 doc/Makefile
375 doc/examples/Makefile
376 include/Makefile
377 include/lttng/ust-version.h
378 snprintf/Makefile
379 libringbuffer/Makefile
380 liblttng-ust-comm/Makefile
381 liblttng-ust/Makefile
382 liblttng-ust-ctl/Makefile
383 liblttng-ust-fork/Makefile
384 liblttng-ust-dl/Makefile
385 liblttng-ust-java/Makefile
386 liblttng-ust-java-agent/Makefile
387 liblttng-ust-java-agent/java/Makefile
388 liblttng-ust-java-agent/jni/Makefile
389 liblttng-ust-java-agent/jni/jul/Makefile
390 liblttng-ust-java-agent/jni/log4j/Makefile
391 liblttng-ust-libc-wrapper/Makefile
392 liblttng-ust-cyg-profile/Makefile
393 liblttng-ust-python-agent/Makefile
394 liblttng-ust-python-agent/setup.py
395 liblttng-ust-python-agent/lttngust/__init__.py
396 tools/Makefile
397 tests/Makefile
398 tests/hello/Makefile
399 tests/hello.cxx/Makefile
400 tests/same_line_tracepoint/Makefile
401 tests/snprintf/Makefile
402 tests/benchmark/Makefile
403 tests/utils/Makefile
404 lttng-ust.pc
405 ])
406
407 # Create link for python agent for the VPATH guru.
408 AC_CONFIG_LINKS([
409 liblttng-ust-python-agent/lttngust/agent.py:liblttng-ust-python-agent/lttngust/agent.py
410 liblttng-ust-python-agent/lttngust/cmd.py:liblttng-ust-python-agent/lttngust/cmd.py
411 liblttng-ust-python-agent/lttngust/debug.py:liblttng-ust-python-agent/lttngust/debug.py
412 liblttng-ust-python-agent/lttngust/loghandler.py:liblttng-ust-python-agent/lttngust/loghandler.py
413 ])
414
415 AC_OUTPUT
416
417 AS_ECHO()
418 AS_ECHO("Version name: $version_name")
419 AS_ECHO("$version_description")
420
421 # Report on the configuration options
422 AS_ECHO()
423 AS_ECHO("LTTng-UST will be built with the following options:")
424
425 AS_ECHO()
426
427 AS_ECHO_N("Java agent (JUL support): ")
428 AS_IF([test "x$java_agent_jul" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
429
430 AS_ECHO_N("Java agent (Log4j support): ")
431 AS_IF([test "x$java_agent_log4j" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
432
433 AS_ECHO_N("JNI interface (JNI): ")
434 AS_IF([test "x$jni_interface" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
435
436 AS_ECHO_N("Python ($PYTHON) agent: ")
437 AS_IF([test "x$python_agent" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
438
439 AS_ECHO_N("sdt.h integration: ")
440 AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")])
441
442 AS_ECHO("Architecture: $host_cpu")
443 AS_ECHO_N("Efficient unaligned memory access: ")
444 AS_IF([test "x$NO_UNALIGNED_ACCESS" != "x1"], [AS_ECHO("yes")], [AS_IF([test "x$UNSUPPORTED_ARCH" != "x1"], [AS_ECHO("no")], [AS_ECHO("unknown")])])
445 AS_IF([test "x$UNSUPPORTED_ARCH" = "x1"], [AC_MSG_WARN([Your architecture ($host_cpu) is unsupported, using safe default of no unaligned access])])
446 AS_ECHO()
447
448 AS_ECHO("Type 'make' to compile.")
449
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