rtla: add rtla package

This provides the rtla tool, which is useful to analyze the real-time
properties of a Linux system.

Signed-off-by: Benjamin Robin <[email protected]>
Signed-off-by: Thomas Richard <[email protected]>

Author: benjarobin

utils/rtla/Makefile

@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2026 Bootlin
+
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/kernel.mk
+
+PKG_NAME:=rtla
+PKG_VERSION:=$(LINUX_VERSION)
+
+PKG_MAINTAINER:=Benjamin Robin <[email protected]>
+PKG_LICENSE:=GPL-2.0-only
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/rtla
+  SECTION:=utils
+  CATEGORY:=Utilities
+  TITLE:=Real-Time Linux Analysis tools
+  URL:=https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
+  DEPENDS:= @USE_GLIBC @(KERNEL_OSNOISE_TRACER||KERNEL_TIMERLAT_TRACER) +libtracefs +libtraceevent
+endef
+
+define Package/rtla/description
+The rtla meta-tool includes a set of commands that aims to analyze
+the real-time properties of Linux. Instead of testing Linux as a black box,
+rtla leverages kernel tracing capabilities to provide precise information
+about the properties and root causes of unexpected results.
+
+Available commands are:
+- osnoise (requires osnoise tracer)
+- hwnoise (requires osnoise tracer)
+- timerlat (requires timerlat tracer)
+endef
+
+MAKE_FLAGS = \
+	CROSS_COMPILE="$(TARGET_CROSS)" \
+	CC="$(TARGET_CC)" \
+	CFLAGS='$(TARGET_CFLAGS) $(TARGET_CPPFLAGS) -DVERSION="\"$(PKG_VERSION)\"" -I$(STAGING_DIR)/usr/include/traceevent' \
+	LDFLAGS="$(TARGET_LDFLAGS)"
+
+define Build/Compile
+	$(MAKE) -C $(LINUX_DIR)/tools/tracing/rtla $(MAKE_FLAGS)
+endef
+
+define Package/rtla/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(LINUX_DIR)/tools/tracing/rtla/rtla $(1)/usr/bin
+endef
+
+$(eval $(call BuildPackage,rtla))