initial buildroot for linux 5.15

package/lttng-libust/Config.in

@@ -0,0 +1,21 @@
+config BR2_PACKAGE_LTTNG_LIBUST
+	bool "lttng-libust"
+	depends on BR2_USE_WCHAR # uses wchar_t
+	# liburcu only works on some architectures and requires threads support"
+	depends on BR2_PACKAGE_LIBURCU_ARCH_SUPPORTS
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_STATIC_LIBS
+	select BR2_PACKAGE_LIBURCU
+	select BR2_PACKAGE_UTIL_LINUX
+	select BR2_PACKAGE_UTIL_LINUX_LIBUUID
+	help
+	  Userspace tracing library for the LTTng 2.x tracing
+	  infrastructure. It allows userspace programs to create
+	  custom trace events that are integrated with all other
+	  events gathered by LTTng.
+
+	  http://lttng.org
+
+comment "lttng-libust needs a toolchain w/ dynamic library, wchar, threads"
+	depends on BR2_PACKAGE_LIBURCU_ARCH_SUPPORTS
+	depends on BR2_STATIC_LIBS || !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS

package/lttng-libust/lttng-libust.hash

@@ -0,0 +1,5 @@
+# From https://lttng.org/files/lttng-ust/lttng-ust-2.12.1.tar.bz2.sha256
+sha256  48a3948b168195123a749d22818809bd25127bb5f1a66458c3c012b210d2a051  lttng-ust-2.12.1.tar.bz2
+
+# Hash for license file
+sha256  74125a84c2166300776980166e29de40d5f98d1a75e487f0bbc0c03b4cd2342e  COPYING

package/lttng-libust/lttng-libust.mk

@@ -0,0 +1,37 @@
+################################################################################
+#
+# lttng-libust
+#
+################################################################################
+
+LTTNG_LIBUST_SITE = http://lttng.org/files/lttng-ust
+LTTNG_LIBUST_VERSION = 2.12.1
+LTTNG_LIBUST_SOURCE = lttng-ust-$(LTTNG_LIBUST_VERSION).tar.bz2
+LTTNG_LIBUST_LICENSE = LGPL-2.1, MIT (system headers), GPL-2.0 (liblttng-ust-ctl/ustctl.c used by lttng-sessiond)
+LTTNG_LIBUST_LICENSE_FILES = COPYING
+LTTNG_LIBUST_INSTALL_STAGING = YES
+LTTNG_LIBUST_DEPENDENCIES = liburcu util-linux
+LTTNG_LIBUST_CONF_OPTS = \
+	--disable-man-pages \
+	--disable-examples \
+	--with-lttng-system-rundir=/run/lttng
+
+ifeq ($(BR2_PACKAGE_PYTHON),y)
+LTTNG_LIBUST_DEPENDENCIES += python
+LTTNG_LIBUST_CONF_OPTS += --enable-python-agent
+else ifeq ($(BR2_PACKAGE_PYTHON3),y)
+LTTNG_LIBUST_DEPENDENCIES += python3
+LTTNG_LIBUST_CONF_OPTS += --enable-python-agent
+else
+LTTNG_LIBUST_CONF_ENV = am_cv_pathless_PYTHON="none"
+LTTNG_LIBUST_CONF_OPTS += --disable-python-agent
+endif
+
+ifeq ($(BR2_PACKAGE_NUMACTL),y)
+LTTNG_LIBUST_DEPENDENCIES += numactl
+LTTNG_LIBUST_CONF_OPTS += --enable-numa
+else
+LTTNG_LIBUST_CONF_OPTS += --disable-numa
+endif
+
+$(eval $(autotools-package))