From b108810601ff1976a0c33f9c20186e50f5a74e7d Mon Sep 17 00:00:00 2001
From: Nick Hainke <vincent@systemli.org>
Date: Sat, 2 Jul 2022 21:48:18 +0200
Subject: [PATCH] libtraceevent: add Linux kernel trace event library

Needed by trace-cmd.

Signed-off-by: Nick Hainke <vincent@systemli.org>
---
 package/libs/libtraceevent/Makefile | 74 +++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 package/libs/libtraceevent/Makefile

diff --git a/package/libs/libtraceevent/Makefile b/package/libs/libtraceevent/Makefile
new file mode 100644
index 0000000000..9fb9304e76
--- /dev/null
+++ b/package/libs/libtraceevent/Makefile
@@ -0,0 +1,74 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=libtraceevent
+PKG_VERSION:=1.6.2
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/snapshot/
+PKG_HASH:=1aaeb12f5842a843a06b733e3f4230b0937ba9c2ecd39345edf6f66cc8cbe795
+
+PKG_MAINTAINER:=Nick Hainke <vincent@systemli.org>
+
+PKG_FIXUP:=autoreconf
+PKG_INSTALL:=1
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/libtraceevent
+  SECTION:=libs
+  CATEGORY:=Libraries
+  TITLE:=Linux kernel trace event library
+  URL:=https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git
+  ABI_VERSION:=0
+endef
+
+define Package/libtraceevent/description
+The libtraceevent library provides APIs to access kernel tracepoint events, located in
+the tracefs file system under the events directory.
+endef
+
+define Package/libtraceevent-extra
+  SECTION:=libs
+  CATEGORY:=Libraries
+  TITLE:=Extra plugins for libtraceevent
+  DEPENDS:=
+endef
+
+CONFIGURE_ARGS+= \
+	--enable-shared \
+	--enable-static
+
+PLUGINS_DIR := $(PKG_BUILD_DIR)/plugins
+PLUGINS_MAIN := function hrtimer mac80211 sched_switch
+
+define Build/InstallDev
+	$(INSTALL_DIR) $(1)/usr/include
+	$(CP) $(PKG_BUILD_DIR)/include/traceevent $(1)/usr/include/
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_BUILD_DIR)/lib/libtraceevent.{a,so*} $(1)/usr/lib/
+	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
+	$(CP) $(PKG_BUILD_DIR)/libtraceevent.pc $(1)/usr/lib/pkgconfig/
+endef
+
+define Package/libtraceevent/install
+	$(INSTALL_DIR) $(1)/usr/lib/traceevent/plugins
+	$(CP) $(PKG_BUILD_DIR)/lib/libtraceevent.so.* $(1)/usr/lib/
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) \
+		$(patsubst %,$(PLUGINS_DIR)/plugin_%.so,$(PLUGINS_MAIN)) \
+		$(1)/usr/lib/traceevent/plugins
+endef
+
+define Package/libtraceevent-extra/install
+	$(INSTALL_DIR) $(1)/usr/lib/traceevent/plugins
+	$(CP) \
+		$$(patsubst %,$(PLUGINS_DIR)/plugin_%.so, \
+			$$(filter-out $(PLUGINS_MAIN), \
+				$$(patsubst $(PLUGINS_DIR)/plugin_%.so,%, \
+					$$(wildcard $(PLUGINS_DIR)/plugin_*.so)))) \
+		$(1)/usr/lib/traceevent/plugins
+endef
+
+$(eval $(call BuildPackage,libtraceevent))
+$(eval $(call BuildPackage,libtraceevent-extra))
-- 
2.30.2