sessiond: notification: add support for async commands
[lttng-tools.git] / configure.ac
index ab3616978ae16e0a060c5dd6a4a497f54f79e885..4e186d471ac4bd0f83efe85892401ae9292c3038 100644 (file)
@@ -1,5 +1,6 @@
+dnl SPDX-License-Identifier: GPL-2.0-only
 AC_PREREQ([2.64])
-AC_INIT([lttng-tools],[2.10.0-pre],[jeremie.galarneau@efficios.com],[],[https://lttng.org])
+AC_INIT([lttng-tools],[2.12.0-rc1],[jeremie.galarneau@efficios.com],[],[https://lttng.org])
 
 AC_CONFIG_HEADERS([include/config.h])
 AC_CONFIG_AUX_DIR([config])
@@ -8,7 +9,7 @@ AC_CONFIG_MACRO_DIR([m4])
 AC_CANONICAL_TARGET
 AC_CANONICAL_HOST
 
-AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip tar-pax nostdinc])
+AM_INIT_AUTOMAKE([1.12 foreign dist-bzip2 no-dist-gzip tar-pax nostdinc])
 AM_MAINTAINER_MODE([enable])
 
 # Enable silent rules if available (Introduced in AM 1.11)
@@ -21,6 +22,39 @@ AC_USE_SYSTEM_EXTENSIONS
 AC_SYS_LARGEFILE
 AC_PROG_CC
 AC_PROG_CC_STDC
+AC_PROG_CXX
+RW_PROG_CXX_WORKS
+AM_CONDITIONAL([CXX_WORKS], [test "x$rw_cv_prog_cxx_works" = "xyes"])
+
+# Detect warning flags supported by the compiler, append them to WARN_CFLAGS.
+#
+# Pass -Werror as an extra flag during the test: this is needed to make the
+# -Wunknown-warning-option diagnostic fatal with clang.
+AX_APPEND_COMPILE_FLAGS([ dnl
+               -Wall dnl
+               dnl We currently get this warning when building with Clang:
+               dnl
+               dnl /usr/include/setjmp.h:54:12: error: declaration of built-in function '__sigsetjmp' requires the declaration of the 'jmp_buf' type, commonly provided in the header <setjmp.h>. [-Werror,-Wincomplete-setjmp-declaration]
+               dnl extern int __sigsetjmp (struct __jmp_buf_tag __env[1], int __savemask) __THROWNL;
+               dnl            ^
+               -Wno-incomplete-setjmp-declaration dnl
+               -Wdiscarded-qualifiers dnl
+               -Wmissing-declarations dnl
+               -Wmissing-prototypes dnl
+               -Wmissing-parameter-type dnl
+               -Wold-style-definition dnl
+               -Wstrict-prototypes dnl
+       ],
+       [WARN_CFLAGS],
+       [-Werror])
+
+# When given, add -Werror to WARN_CFLAGS.
+AC_ARG_ENABLE([Werror],
+       [AS_HELP_STRING([--enable-Werror], [Treat compiler warnings as errors.])]
+)
+AS_IF([test "x$enable_Werror" = "xyes"],
+       [WARN_CFLAGS="${WARN_CFLAGS} -Werror"]
+)
 
 # Checks for programs.
 AC_PROG_GREP
@@ -40,6 +74,11 @@ AM_CONDITIONAL([HAVE_OBJCOPY], [test "x$OBJCOPY" != xno])
 AC_PATH_PROG([PGREP], [pgrep], [no])
 AM_CONDITIONAL([HAVE_PGREP], [test "x$PGREP" != "xno"])
 
+# set $IN_GIT_REPO if we're in the Git repository; the `bootstrap` file
+# is not distributed in tarballs
+AS_IF([test -f "$srcdir/bootstrap"], [in_git_repo=yes], [in_git_repo=no])
+AM_CONDITIONAL([IN_GIT_REPO], [test "x$in_git_repo" = "xyes"])
+
 # check for bison
 AC_PROG_YACC
 BISON=$YACC
@@ -107,6 +146,10 @@ AS_IF([test "x$ax_cv___attribute__" = "xyes"],
 
 AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])])
 
+# Check if linker has the -no-pie option.
+AX_CHECK_LINK_FLAG([-no-pie], [linker_have_no_pie_option=yes])
+AM_CONDITIONAL([LINKER_HAVE_NO_PIE_OPTION], [test "x$linker_have_no_pie_option" = "xyes"])
+
 AX_LIB_SOCKET_NSL
 
 LT_NO_UNDEFINED=""
@@ -114,6 +157,16 @@ AS_CASE([$host_os],
   [cygwin*],
     [
       LT_NO_UNDEFINED="-no-undefined"
+    ],
+  [cygwin*|darwin*|mingw*|solaris*],
+    [
+      # On platforms where we only support the relayd, disable the other binaries by default
+      AS_IF([test "x$enable_bin_lttng" = "x" ], [enable_bin_lttng=no])
+      AS_IF([test "x$enable_bin_lttng_consumerd" = "x" ], [enable_bin_lttng_consumerd=no])
+      AS_IF([test "x$enable_bin_lttng_crash" = "x" ], [enable_bin_lttng_crash=no])
+      AS_IF([test "x$enable_bin_lttng_sessiond" = "x" ], [enable_bin_lttng_sessiond=no])
+      AS_IF([test "x$enable_extras" = "x" ], [enable_extras=no])
+      AS_IF([test "x$with_lttng_ust" = "x" ], [with_lttng_ust=no])
     ]
 )
 
@@ -131,8 +184,8 @@ AC_DEFINE_UNQUOTED([VERSION_MAJOR], $major_version, [LTTng-Tools major version n
 AC_DEFINE_UNQUOTED([VERSION_MINOR], $minor_version, [LTTng-Tools minor version number])
 AC_DEFINE_UNQUOTED([VERSION_PATCHLEVEL], $patchlevel_version, [LTTng-Tools patchlevel version number])
 
-version_name="KeKriek"
-version_description='From Brasserie Dunham, a sour mashed golden wheat ale fermented with local sour cherries from Tougas orchards. Fresh sweet cherry notes with some tartness, lively carbonation with a dry finish.'
+version_name="(Ta) Meilleure"
+version_description="Ta Meilleure is a Northeast IPA beer brewed by Lagabière. Translating to \"Your best one\", this beer gives out strong aromas of passion fruit, lemon, and peaches. Tastewise, expect a lot of fruit, a creamy texture, and a smooth lingering hop bitterness."
 version_description_c=$(echo $version_description | $SED 's/"/\\"/g')
 
 AC_DEFINE_UNQUOTED([VERSION_NAME], ["$version_name"], "")
@@ -169,13 +222,15 @@ AC_CHECK_HEADERS([ \
        signal.h stdlib.h sys/un.h sys/socket.h stdlib.h stdio.h \
        getopt.h sys/ipc.h sys/shm.h popt.h grp.h arpa/inet.h \
        netdb.h netinet/in.h paths.h stddef.h sys/file.h sys/ioctl.h \
-       sys/mount.h sys/param.h sys/time.h
+       sys/mount.h sys/param.h sys/time.h elf.h
 ])
 
+AM_CONDITIONAL([HAVE_ELF_H], [test x$ac_cv_header_elf_h = xyes])
+
 # Basic functions check
 AC_CHECK_FUNCS([ \
        atexit bzero clock_gettime dup2 fdatasync fls ftruncate \
-       gethostbyname gethostname getpagesize localtime_r memchr memset \
+       gethostbyname gethostname getpagesize localtime_r memchr memrchr memset \
        mkdir munmap putenv realpath rmdir socket strchr strcspn strdup \
        strncasecmp strndup strnlen strpbrk strrchr strstr strtol strtoul \
        strtoull dirfd gethostbyname2 getipnodebyname epoll_create1 \
@@ -186,6 +241,33 @@ AC_CHECK_FUNCS([ \
 # add -lrt to LIBS
 AC_CHECK_LIB([rt], [clock_gettime, timer_create, timer_settime, timer_delete])
 
+# Checks for dl.
+AC_CHECK_LIB([dl], [dlopen], [
+       have_libdl=yes
+       libdl_name=dl
+       DL_LIBS="-ldl"
+], [
+       # libdl not found, check for dlopen in libc.
+       AC_CHECK_LIB([c], [dlopen], [
+               have_libc_dl=yes
+               libdl_name=c
+               DL_LIBS="-lc"
+       ], [
+               AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
+       ])
+])
+AC_SUBST(DL_LIBS)
+
+# Check if libdl has dlmopen support.
+AH_TEMPLATE([HAVE_DLMOPEN], ["Define to 1 if dlmopen is available."])
+AC_CHECK_LIB([$libdl_name], [dlmopen], [
+       AC_DEFINE([HAVE_DLMOPEN], [1])
+       HAVE_DLMOPEN=1
+], [
+       HAVE_DLMOPEN=0
+])
+AC_SUBST(HAVE_DLMOPEN)
+
 # Babeltrace viewer check
 AC_ARG_WITH([babeltrace-bin],
        AS_HELP_STRING([--with-babeltrace-bin],
@@ -194,13 +276,12 @@ AC_ARG_WITH([babeltrace-bin],
        [BABELTRACE_BIN=''])
 AC_SUBST([BABELTRACE_BIN])
 
-# lttv-gui
-AC_ARG_WITH([lttv-gui-bin],
-       AS_HELP_STRING([--with-lttv-gui-bin],
-   [Location of the lttv GUI viewer executable (including the filename)]),
-   [LTTV_GUI_BIN="$withval"],
-   [LTTV_GUI_BIN=''])
-AC_SUBST([LTTV_GUI_BIN])
+AC_ARG_WITH([babeltrace2-bin],
+       AS_HELP_STRING([--with-babeltrace2-bin],
+       [Location of the babeltrace2 viewer executable (including the filename)]),
+       [BABELTRACE2_BIN="$withval"],
+       [BABELTRACE2_BIN=''])
+AC_SUBST([BABELTRACE2_BIN])
 
 AC_ARG_WITH([consumerd32-bin],
        AS_HELP_STRING([--with-consumerd32-bin],
@@ -268,7 +349,7 @@ AC_DEFINE_UNQUOTED([CONFIG_CONSUMERD64_BIN], "$CONSUMERD64_BIN", [Location of th
 AC_DEFINE_UNQUOTED([CONFIG_CONSUMERD32_LIBDIR], "$CONSUMERD32_LIBDIR", [Search for consumerd 32-bit libraries in this location.])
 AC_DEFINE_UNQUOTED([CONFIG_CONSUMERD64_LIBDIR], "$CONSUMERD64_LIBDIR", [Search for consumerd 64-bit libraries in this location.])
 AC_DEFINE_UNQUOTED([CONFIG_BABELTRACE_BIN], "$BABELTRACE_BIN", [Location of the babeltrace viewer executable.])
-AC_DEFINE_UNQUOTED([CONFIG_LTTV_GUI_BIN], "$LTTV_GUI_BIN", [Location of the lttv GUI viewer executable.])
+AC_DEFINE_UNQUOTED([CONFIG_BABELTRACE2_BIN], "$BABELTRACE2_BIN", [Location of the babeltrace2 viewer executable.])
 AC_DEFINE_UNQUOTED([CONFIG_SESSIOND_BIN], "$SESSIOND_BIN", [Location of the sessiond executable.])
 AC_DEFINE_UNQUOTED([CONFIG_LTTNG_SYSTEM_RUNDIR], ["$LTTNG_SYSTEM_RUNDIR"], [LTTng system runtime directory])
 
@@ -291,7 +372,9 @@ m4_define([_DEFAULT_CHANNEL_SWITCH_TIMER], [0])
 m4_define([_DEFAULT_CHANNEL_LIVE_TIMER], [0])
 m4_define([_DEFAULT_CHANNEL_READ_TIMER], [200000])
 m4_define([_DEFAULT_CHANNEL_MONITOR_TIMER], [1000000])
-_AC_DEFINE_AND_SUBST([DEFAULT_AGENT_TCP_PORT], [5345])
+m4_define([_DEFAULT_CHANNEL_BLOCKING_TIMEOUT], [0])
+_AC_DEFINE_AND_SUBST([DEFAULT_AGENT_TCP_PORT_RANGE_BEGIN], [5345])
+_AC_DEFINE_AND_SUBST([DEFAULT_AGENT_TCP_PORT_RANGE_END], [5354])
 _AC_DEFINE_AND_SUBST([DEFAULT_APP_SOCKET_RW_TIMEOUT], [5])
 _AC_DEFINE_AND_SUBST([DEFAULT_CHANNEL_SUBBUF_SIZE], [_DEFAULT_CHANNEL_SUBBUF_SIZE])
 _AC_DEFINE_AND_SUBST([DEFAULT_CHANNEL_TRACEFILE_COUNT], [0])
@@ -302,6 +385,7 @@ _AC_DEFINE_AND_SUBST([DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM], [_DEFAULT_CHANNEL_SUBB
 _AC_DEFINE_AND_SUBST([DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE], [1048576])
 _AC_DEFINE_AND_SUBST([DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER], [_DEFAULT_CHANNEL_SWITCH_TIMER])
 _AC_DEFINE_AND_SUBST([DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER], [_DEFAULT_CHANNEL_MONITOR_TIMER])
+_AC_DEFINE_AND_SUBST([DEFAULT_KERNEL_CHANNEL_BLOCKING_TIMEOUT], [_DEFAULT_CHANNEL_BLOCKING_TIMEOUT])
 _AC_DEFINE_AND_SUBST([DEFAULT_LTTNG_LIVE_TIMER], [1000000])
 _AC_DEFINE_AND_SUBST([DEFAULT_METADATA_CACHE_SIZE], [4096])
 _AC_DEFINE_AND_SUBST([DEFAULT_METADATA_READ_TIMER], [0])
@@ -313,12 +397,14 @@ _AC_DEFINE_AND_SUBST([DEFAULT_NETWORK_DATA_PORT], [5343])
 _AC_DEFINE_AND_SUBST([DEFAULT_NETWORK_VIEWER_PORT], [5344])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_PID_CHANNEL_LIVE_TIMER], [_DEFAULT_CHANNEL_LIVE_TIMER])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_PID_CHANNEL_READ_TIMER], [0])
+_AC_DEFINE_AND_SUBST([DEFAULT_UST_PID_CHANNEL_BLOCKING_TIMEOUT], [0])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_PID_CHANNEL_SUBBUF_NUM], [_DEFAULT_CHANNEL_SUBBUF_NUM])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_PID_CHANNEL_SUBBUF_SIZE], [_DEFAULT_CHANNEL_SUBBUF_SIZE])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER], [_DEFAULT_CHANNEL_SWITCH_TIMER])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER], [_DEFAULT_CHANNEL_MONITOR_TIMER])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_UID_CHANNEL_LIVE_TIMER], [_DEFAULT_CHANNEL_LIVE_TIMER])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_UID_CHANNEL_READ_TIMER], [0])
+_AC_DEFINE_AND_SUBST([DEFAULT_UST_UID_CHANNEL_BLOCKING_TIMEOUT], [0])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_UID_CHANNEL_SUBBUF_NUM], [_DEFAULT_CHANNEL_SUBBUF_NUM])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_UID_CHANNEL_SUBBUF_SIZE], [524288])
 _AC_DEFINE_AND_SUBST([DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER], [_DEFAULT_CHANNEL_SWITCH_TIMER])
@@ -327,25 +413,33 @@ _AC_DEFINE_QUOTED_AND_SUBST([DEFAULT_AGENT_BIND_ADDRESS], [localhost])
 _AC_DEFINE_QUOTED_AND_SUBST([DEFAULT_NETWORK_CONTROL_BIND_ADDRESS], [0.0.0.0])
 _AC_DEFINE_QUOTED_AND_SUBST([DEFAULT_NETWORK_DATA_BIND_ADDRESS], [0.0.0.0])
 _AC_DEFINE_QUOTED_AND_SUBST([DEFAULT_NETWORK_VIEWER_BIND_ADDRESS], [localhost])
+_AC_DEFINE_AND_SUBST([DEFAULT_NETWORK_RELAYD_CTRL_MAX_PAYLOAD_SIZE], [134217728])
+_AC_DEFINE_AND_SUBST([DEFAULT_ROTATE_PENDING_TIMER], [500000])
 
 # Command short descriptions
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_ADD_CONTEXT], [Add context fields to a channel])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_CREATE], [Create a tracing session])
+_AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_CLEAR], [Clear a tracing session])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_DESTROY], [Tear down tracing sessions])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_DISABLE_CHANNEL], [Disable tracing channels])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_DISABLE_EVENT], [Disable event rules])
+_AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_DISABLE_ROTATION], [Unset a rotation schedule])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_ENABLE_CHANNEL], [Create or enable tracing channels])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_ENABLE_EVENT], [Create or enable event rules])
+_AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_ENABLE_ROTATION], [Set a rotation schedule])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_HELP], [Display help information about a command])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_LIST], [List tracing sessions, domains, channels, and events])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_LOAD], [Load tracing session configurations])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_REGENERATE], [Manage an LTTng tracing session's data regeneration])
+_AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_ROTATE], [Archive a tracing session's current trace chunk])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_SAVE], [Save tracing session configurations])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_SET_SESSION], [Set current tracing session])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_SNAPSHOT], [Snapshot buffers of current tracing session])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_START], [Start tracing])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_STATUS], [Get the status of the current tracing session])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_STOP], [Stop tracing])
+_AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_DISABLE_ROTATION], [Unset a rotation schedule])
+_AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_ENABLE_ROTATION], [Set a rotation schedule])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_TRACK], [Track specific system resources])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_UNTRACK], [Untrack specific system resources])
 _AC_DEFINE_QUOTED_AND_SUBST([CMD_DESCR_VERSION], [Show version information])
@@ -358,67 +452,28 @@ CONFDIR=`eval echo $sysconfdir`
 AC_SUBST(CONFDIR)
 AC_DEFINE_UNQUOTED([CONFIG_LTTNG_SYSTEM_CONFIGDIR],"$CONFDIR", [LTTng system configuration directory.])
 
-AC_DEFINE_DIR([CONFIG_LTTNG_SYSTEM_DATADIR],[datadir], [LTTng system data directory.])
+AX_DEFINE_DIR([CONFIG_LTTNG_SYSTEM_DATADIR], [datadir], [LTTng system data directory.])
 
 # Check libpopt
 PKG_CHECK_MODULES([POPT], [popt],
-       [LIBS="$LIBS $POPT_LIBS"],
-       [
-               AC_MSG_WARN([pkg-config was unable to find a valid .pc for libpopt. Set PKG_CONFIG_PATH to specify the pkgconfig configuration file location])
-               AC_MSG_WARN([Finding libpopt without pkg-config.])
-               AC_CHECK_LIB([popt],
-                       [poptGetContext],
-                       [],
-                       [
-                                AC_MSG_ERROR([Cannot find libpopt. Either set PKG_CONFIG_PATH to the configuration file location or use LDFLAGS=-Ldir to specify the library location])
-                       ]
-               )
-       ]
-)
-
-PKG_CHECK_MODULES([libxml2], [libxml-2.0 >= 2.7.6])
-
-# First, check for uuid in system libs
-AH_TEMPLATE([LTTNG_HAVE_LIBUUID], [Define if you have libuuid support])
-AC_CHECK_FUNCS([uuid_generate],
   [
-    AC_DEFINE([LTTNG_HAVE_LIBUUID], [1])
-    UUID_LIBS=""
+    dnl PKG_CHECK_MODULES defines POPT_LIBS
   ],
   [
-    # Then, check if the pkg-config module is available, otherwise explicitly check
-    # for libuuid, or uuid support in the C-library.
-    PKG_CHECK_MODULES([UUID], [uuid],
-      [
-        AC_DEFINE([LTTNG_HAVE_LIBUUID], [1])
-        dnl PKG_CHECK_MODULES defines UUID_LIBS
-      ],
+    AC_MSG_WARN([pkg-config was unable to find a valid .pc for libpopt. Set PKG_CONFIG_PATH to specify the pkgconfig configuration file location])
+    AC_MSG_WARN([Finding libpopt without pkg-config.])
+    AC_CHECK_LIB([popt],
+      [poptGetContext],
+      [POPT_LIBS="-lpopt"],
       [
-        AC_MSG_WARN([pkg-config was unable to find a valid .pc for libuuid. Set PKG_CONFIG_PATH to specify the pkgconfig configuration file location])
-        AC_MSG_WARN([Finding libuuid without pkg-config.])
-        AC_CHECK_LIB([uuid], [uuid_generate],
-          [
-            AC_DEFINE([LTTNG_HAVE_LIBUUID], [1])
-            UUID_LIBS="-luuid"
-          ],
-          [
-            # libuuid not found, check for uuid_create in libc.
-            AC_CHECK_LIB([c], [uuid_create],
-              [
-                AC_DEFINE([LTTNG_HAVE_LIBUUID], [1])
-                UUID_LIBS="-lc"
-              ],
-              [
-                AC_MSG_FAILURE([Cannot find libuuid uuid_generate nor libc uuid_create. Either set PKG_CONFIG_PATH to the configuration file location or use LDFLAGS=-Ldir to specify the library location])
-              ]
-            )
-          ]
-        )
+        AC_MSG_FAILURE([Cannot find libpopt. Either set PKG_CONFIG_PATH to the configuration file location or use LDFLAGS=-Ldir to specify the library location])
       ]
     )
   ]
 )
-AC_SUBST(UUID_LIBS)
+AC_SUBST(POPT_LIBS)
+
+PKG_CHECK_MODULES([libxml2], [libxml-2.0 >= 2.7.6])
 
 AC_CHECK_FUNC([clock_gettime], [AC_DEFINE_UNQUOTED([LTTNG_HAVE_CLOCK_GETTIME], 1, [Has clock_gettime() support.])])
 
@@ -490,35 +545,20 @@ AC_ARG_WITH([lttng-ust],
   [with_lttng_ust=yes]
 )
 
-AS_IF([test "x$with_lttng_ust" = "xyes"],
-  [
-    AC_CHECK_LIB([lttng-ust-ctl], [ustctl_recv_channel_from_consumer],
-      [
-        AC_DEFINE([HAVE_LIBLTTNG_UST_CTL], [1])
-      ],
-      [
-        AC_MSG_FAILURE([Cannot find LTTng-UST >= 2.2.x. Use [LDFLAGS]=-Ldir and [CPPFLAGS]=-Idir to specify its location, or specify --without-lttng-ust to build lttng-tools without LTTng-UST support.])
-      ],
-      [-lurcu-common -lurcu-bp -lurcu-cds -lrt -ldl]
-    )
-  ]
-)
-AM_CONDITIONAL([HAVE_LIBLTTNG_UST_CTL], [test "x$with_lttng_ust" = "xyes"])
+AS_IF([test "x$with_lttng_ust" = "xyes"], [
+  AC_DEFINE([HAVE_LIBLTTNG_UST_CTL], [1])
 
+  # Check for liblttng-ust
+  PKG_CHECK_MODULES([UST], [lttng-ust >= $major_version.$minor_version])
 
+  # Check for liblttng-ust-ctl
+  PKG_CHECK_MODULES([UST_CTL], [lttng-ust-ctl >= $major_version.$minor_version])
+
+  AM_CPPFLAGS="$AM_CPPFLAGS $UST_CFLAGS"
+])
+
+AM_CONDITIONAL([HAVE_LIBLTTNG_UST_CTL], [test "x$with_lttng_ust" = "xyes"])
 
-# check for dlopen
-AC_CHECK_LIB([dl], [dlopen],
-  [DL_LIBS="-ldl"],
-  [
-    #libdl not found, check for dlopen in libc.
-    AC_CHECK_LIB([c], [dlopen],
-      [DL_LIBS="-lc"],
-      [AC_MSG_FAILURE([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])]
-    )
-  ]
-)
-AC_SUBST(DL_LIBS)
 
 # Check for fmemopen
 AC_CHECK_LIB([c], [fmemopen],
@@ -527,13 +567,6 @@ AC_CHECK_LIB([c], [fmemopen],
 ]
 )
 
-# Check for open_memstream
-AC_CHECK_LIB([c], [open_memstream],
-[
-       AC_DEFINE_UNQUOTED([LTTNG_HAVE_OPEN_MEMSTREAM], 1, [Has open_memstream support.])
-]
-)
-
 # check for libpfm
 AC_CHECK_LIB([pfm], [pfm_initialize],
             [
@@ -541,15 +574,6 @@ AC_CHECK_LIB([pfm], [pfm_initialize],
              ])
 AM_CONDITIONAL([LTTNG_TOOLS_BUILD_WITH_LIBPFM], [test "x$have_libpfm" = "xyes"])
 
-AC_ARG_ENABLE([git-version],
-              [AC_HELP_STRING([--disable-git-version],
-                              [Do not use the git version for the build])],
-              [have_git_version=$enableval], [have_git_version=yes]
-)
-
-AM_CONDITIONAL([LTTNG_TOOLS_BUILD_GIT_SOURCE],
-       [test "x${have_git_version}" = "xyes"])
-
 # For Python
 # SWIG version needed or newer:
 swig_version=2.0.0
@@ -599,6 +623,17 @@ AX_CONFIG_FEATURE(
 )
 AM_CONDITIONAL([COMPAT_EPOLL], [ test "$enable_epoll" = "yes" ])
 
+AS_IF([test "x$ac_cv_func_dirfd" = "xyes"],
+       [AX_CONFIG_FEATURE_ENABLE(dirfd)],
+       [AX_CONFIG_FEATURE_DISABLE(dirfd)]
+)
+AX_CONFIG_FEATURE(
+       [dirfd], [Use directory file descriptors],
+       [COMPAT_DIRFD], [This platform supports directory file descriptors.],
+       [enable_dirfd="yes"], [enable_dirfd="no"]
+)
+AM_CONDITIONAL([COMPAT_DIRFD], [ test "$enable_dirfd" = "yes" ])
+
 AM_CONDITIONAL([TEST_JAVA_JUL_AGENT], [test "x$test_java_agent_jul" = "xyes"])
 AM_CONDITIONAL([TEST_JAVA_LOG4J_AGENT], [test "x$test_java_agent_log4j" = "xyes"])
 
@@ -639,11 +674,6 @@ if test "x$test_java_agent_jul" = "xyes" || test "x$test_java_agent_log4j" = "xy
        fi
 fi
 
-# set $IN_GIT_REPO if we're in the Git repository; the `bootstrap` file
-# is not distributed in tarballs
-AS_IF([test -f "$srcdir/bootstrap"], [in_git_repo=yes], [in_git_repo=no])
-AM_CONDITIONAL([IN_GIT_REPO], [test "x$in_git_repo" = "xyes"])
-
 # enable building man pages (user's intention)
 AC_ARG_ENABLE(
        man-pages,
@@ -812,6 +842,36 @@ AC_SUBST([RUN_PYTHON_AGENT_TEST])
 AC_SUBST([PYTHON2_AGENT])
 AC_SUBST([PYTHON3_AGENT])
 
+AC_ARG_ENABLE([test-sdt-uprobe],
+  [AS_HELP_STRING([--enable-test-sdt-uprobe], [enable the LTTng UST SDT uprobe tests [default=autodetect]])],
+  [test_sdt_uprobe="$enableval"],
+  [test_sdt_uprobe=autodetect]
+)
+
+AS_IF([test "$test_sdt_uprobe" != "no"], [
+  LTTNG_CHECK_SDT_WORKS
+  AC_PATH_PROG([DTRACE], [dtrace])
+])
+
+AS_IF([test "$test_sdt_uprobe" = "yes"], [
+  AS_IF([test "$lttng_cv_sdt_works" = "no"], [
+    AC_MSG_ERROR([Cannot find 'sys/sdt.h'.])
+  ])
+  AS_IF([test "x$DTRACE" = "x"], [
+    AC_MSG_ERROR([Cannot find SystemTap dtrace. You can set the DTRACE variable to override automatic detection.])
+  ])
+])
+
+AS_IF([test "$test_sdt_uprobe" = "autodetect"], [
+  AS_IF([test "$lttng_cv_sdt_works" = "yes"], [
+    AS_IF([test "x$DTRACE" != "x"], [
+      test_sdt_uprobe=yes
+    ])
+  ])
+])
+
+AM_CONDITIONAL([TEST_SDT_UPROBE], [test "$test_sdt_uprobe" = "yes"])
+
 # Arguments for binaries build exclusion
 AC_ARG_ENABLE([bin-lttng], AS_HELP_STRING([--disable-bin-lttng],[Disable the build of lttng binaries]))
 AC_ARG_ENABLE([bin-lttng-consumerd], AS_HELP_STRING([--disable-bin-lttng-consumerd],
@@ -837,6 +897,7 @@ build_lib_kernel_consumer=no
 build_lib_kernel_ctl=no
 build_lib_lttng_ctl=no
 build_lib_relayd=no
+build_lib_fd_tracker=no
 build_lib_sessiond_comm=no
 build_lib_testpoint=no
 build_lib_ust_consumer=no
@@ -876,6 +937,7 @@ AS_IF([test x$enable_bin_lttng_relayd != xno],
        build_lib_index=yes
        build_lib_health=yes
        build_lib_testpoint=yes
+       build_lib_fd_tracker=yes
       ]
 )
 AS_IF([test x$enable_bin_lttng_sessiond != xno],
@@ -888,7 +950,6 @@ AS_IF([test x$enable_bin_lttng_sessiond != xno],
        build_lib_relayd=yes
        build_lib_testpoint=yes
        build_lib_health=yes
-       build_lib_health=yes
       ]
 )
 
@@ -924,6 +985,51 @@ AS_IF([test x$build_lib_relayd = xyes],
       ]
 )
 
+# Find arch type
+AS_CASE([$host_cpu],
+        [k1om], [ARCHTYPE="x86"],
+        [i386], [ARCHTYPE="x86"],
+        [i486], [ARCHTYPE="x86"],
+        [i586], [ARCHTYPE="x86"],
+        [i686], [ARCHTYPE="x86"],
+        [amd64], [ARCHTYPE="x86"],
+        [x86_64], [ARCHTYPE="x86"],
+        [powerpc], [ARCHTYPE="ppc"],
+        [ppc64], [ARCHTYPE="ppc"],
+        [powerpc64], [ARCHTYPE="ppc"],
+        [powerpc64le], [ARCHTYPE="ppc"],
+        [ppc], [ARCHTYPE="ppc"],
+        [s390], [ARCHTYPE="s390"],
+        [s390x], [ARCHTYPE="s390"],
+        [sparc], [ARCHTYPE="sparc64"],
+        [sparc64], [ARCHTYPE="sparc64"],
+        [alpha*], [ARCHTYPE="alpha"],
+        [ia64], [ARCHTYPE="ia64"],
+        [arm*], [ARCHTYPE="arm"],
+        [aarch64*], [ARCHTYPE="aarch64"],
+        [mips*], [ARCHTYPE="mips"],
+        [nios2*], [ARCHTYPE="nios2"],
+        [tile*], [ARCHTYPE="tile"],
+        [hppa*], [ARCHTYPE="hppa"],
+        [m68k], [ARCHTYPE="m68k"],
+        [riscv*], [ARCHTYPE="riscv"],
+        [ARCHTYPE="unknown"]
+)
+
+AC_SUBST(ARCHTYPE)
+
+AH_TEMPLATE([HAVE_MODULES_USERSPACE_CALLSTACK_CONTEXT], [Define if you have LTTng-modules userspace callstack tracing support])
+AC_MSG_CHECKING([for architecture support of userspace callstack tracing from the kernel])
+AS_IF([test "x$ARCHTYPE" = "xx86"],[
+        # Userspace callstack capture is only supported by the Linux kernel on x86.
+        AC_MSG_RESULT([yes])
+        have_modules_userspace_callstack_context=yes
+        AC_DEFINE([HAVE_MODULES_USERSPACE_CALLSTACK_CONTEXT], [1])
+], [
+        AC_MSG_RESULT([no])
+        have_modules_userspace_callstack_context=no
+])
+AM_CONDITIONAL([HAVE_MODULES_USERSPACE_CALLSTACK_CONTEXT], [test x$have_modules_userspace_callstack_context != xno])
 
 # Export binaries build conditions.
 AM_CONDITIONAL([BUILD_BIN_LTTNG], [test x$enable_bin_lttng != xno])
@@ -957,14 +1063,25 @@ AM_CONDITIONAL([BUILD_LIB_KERNEL_CONSUMER], [test x$build_lib_kernel_consumer =
 AM_CONDITIONAL([BUILD_LIB_KERNEL_CTL], [test x$build_lib_kernel_ctl = xyes])
 AM_CONDITIONAL([BUILD_LIB_LTTNG_CTL], [test x$build_lib_lttng_ctl = xyes])
 AM_CONDITIONAL([BUILD_LIB_RELAYD], [test x$build_lib_relayd = xyes])
+AM_CONDITIONAL([BUILD_LIB_FD_TRACKER], [test x$build_lib_fd_tracker = xyes])
 AM_CONDITIONAL([BUILD_LIB_SESSIOND_COMM], [test x$build_lib_sessiond_comm = xyes])
 AM_CONDITIONAL([BUILD_LIB_TESTPOINT], [test x$build_lib_testpoint = xyes])
 AM_CONDITIONAL([BUILD_LIB_UST_CONSUMER], [test x$build_lib_ust_consumer = xyes])
 
-AM_CFLAGS="-Wall -fno-strict-aliasing $PTHREAD_CFLAGS"
+AM_CFLAGS="${WARN_CFLAGS} -fno-strict-aliasing $PTHREAD_CFLAGS"
 AC_SUBST(AM_CFLAGS)
 
-AM_CPPFLAGS="-I\$(top_srcdir)/include -I\$(top_builddir)/include -I\$(top_srcdir)/src -include config.h $AM_CPPFLAGS"
+# This is set even though it is empty, so Makefiles can do "AM_LDFLAGS += ...".
+AM_LDFLAGS=""
+AC_SUBST(AM_LDFLAGS)
+
+# The order in which the include folders are searched is important.
+# The top_builddir should always be searched first in the event that a build
+# time generated file is included. An example of this is the "version.i" file.
+# In a scenario where lttng-tools is built from a distribution tarball and in a
+# out-of-tree manner, the generated "version.i" has priority on the one from
+# the source (distribution tarball) and must be found first.
+AM_CPPFLAGS="-I\$(top_builddir)/include -I\$(top_srcdir)/include -I\$(top_srcdir)/src -include config.h $AM_CPPFLAGS"
 AC_SUBST(AM_CPPFLAGS)
 
 lttngincludedir="${includedir}/lttng"
@@ -1011,6 +1128,7 @@ AC_CONFIG_FILES([
        src/common/health/Makefile
        src/common/config/Makefile
        src/common/string-utils/Makefile
+       src/common/fd-tracker/Makefile
        src/lib/Makefile
        src/lib/lttng-ctl/Makefile
        src/lib/lttng-ctl/filter/Makefile
@@ -1041,6 +1159,13 @@ AC_CONFIG_FILES([
        tests/regression/tools/regen-metadata/Makefile
        tests/regression/tools/regen-statedump/Makefile
        tests/regression/tools/notification/Makefile
+       tests/regression/tools/rotation/Makefile
+       tests/regression/tools/base-path/Makefile
+       tests/regression/tools/metadata/Makefile
+       tests/regression/tools/tracker/Makefile
+       tests/regression/tools/working-directory/Makefile
+       tests/regression/tools/relayd-grouping/Makefile
+       tests/regression/tools/clear/Makefile
        tests/regression/ust/Makefile
        tests/regression/ust/nprocesses/Makefile
        tests/regression/ust/high-throughput/Makefile
@@ -1049,6 +1174,7 @@ AC_CONFIG_FILES([
        tests/regression/ust/buffers-pid/Makefile
        tests/regression/ust/periodical-metadata-flush/Makefile
        tests/regression/ust/multi-session/Makefile
+       tests/regression/ust/multi-lib/Makefile
        tests/regression/ust/overlap/Makefile
        tests/regression/ust/overlap/demo/Makefile
        tests/regression/ust/linking/Makefile
@@ -1066,6 +1192,7 @@ AC_CONFIG_FILES([
        tests/regression/ust/type-declarations/Makefile
        tests/regression/ust/rotation-destroy-flush/Makefile
        tests/regression/ust/blocking/Makefile
+       tests/regression/ust/namespaces/Makefile
        tests/stress/Makefile
        tests/unit/Makefile
        tests/unit/ini_config/Makefile
@@ -1073,16 +1200,25 @@ AC_CONFIG_FILES([
        tests/utils/Makefile
        tests/utils/tap/Makefile
        tests/utils/testapp/Makefile
+       tests/utils/testapp/gen-ns-events/Makefile
+       tests/utils/testapp/gen-kernel-test-events/Makefile
        tests/utils/testapp/gen-ust-events/Makefile
+       tests/utils/testapp/gen-ust-events-ns/Makefile
+       tests/utils/testapp/gen-syscall-events-callstack/Makefile
        tests/utils/testapp/gen-ust-nevents/Makefile
        tests/utils/testapp/gen-ust-nevents-str/Makefile
+       tests/utils/testapp/gen-syscall-events/Makefile
        tests/utils/testapp/gen-ust-tracef/Makefile
+       tests/utils/testapp/userspace-probe-elf-binary/Makefile
+       tests/utils/testapp/userspace-probe-elf-cxx-binary/Makefile
+       tests/utils/testapp/userspace-probe-sdt-binary/Makefile
 ])
 
 # Inject variable into python test script.
 AC_CONFIG_FILES([tests/regression/ust/python-logging/test_python_logging],[chmod +x tests/regression/ust/python-logging/test_python_logging])
 # Inject LTTNG_TOOLS_BUILD_WITH_LIBPFM variable in test script.
 AC_CONFIG_FILES([tests/perf/test_perf_raw],[chmod +x tests/perf/test_perf_raw])
+AC_CONFIG_FILES([tests/regression/ust/ust-dl/test_ust-dl],[chmod +x tests/regression/ust/ust-dl/test_ust-dl])
 
 AC_OUTPUT
 
@@ -1176,6 +1312,10 @@ PPRINT_PROP_BOOL([LTTng-UST Python2 agent tests], $value)
 test ! -z "$PYTHON3_AGENT" && value=1 || value=0
 PPRINT_PROP_BOOL([LTTng-UST Python3 agent tests], $value)
 
+# LTTng UST Java agent Log4j tests enabled/disabled
+test "x$test_sdt_uprobe" = "xyes" && value=1 || value=0
+PPRINT_PROP_BOOL([LTTng-UST SDT uprobe tests], $value)
+
 #Python binding enabled/disabled
 test "x$enable_python_binding" = xyes && value=1 || value=0
 AS_ECHO
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