package/network/utils/bpftools/Makefile

   1 #
   2 # Copyright (C) 2020 Tony Ambardar <itugrok@yahoo.com>
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7
   8 include $(TOPDIR)/rules.mk
   9
  10 PKG_NAME:=bpftools
  11 PKG_VERSION:=5.11.16
  12 PKG_RELEASE:=1
  13
  14 PKG_SOURCE:=linux-$(PKG_VERSION).tar.xz
  15 PKG_SOURCE_URL:=@KERNEL/linux/kernel/v5.x
  16 PKG_HASH:=21163681d130cbce5a6be39019e2c69e44f284855ddd70b1a3bd039249540f43
  17
  18 PKG_MAINTAINER:=Tony Ambardar <itugrok@yahoo.com>
  19
  20 PKG_USE_MIPS16:=0
  21 PKG_BUILD_PARALLEL:=1
  22 PKG_INSTALL:=1
  23
  24 LINUX_VERSION:=$(PKG_VERSION)
  25 LINUX_TLD:=linux-$(LINUX_VERSION)
  26
  27 BPF_FILES:= \
  28         kernel/bpf scripts tools/Makefile tools/bpf tools/perf/perf-sys.h \
  29         tools/arch tools/build tools/include tools/lib tools/scripts
  30 TAR_OPTIONS+= \
  31         --transform="s;$(LINUX_TLD)/;$(PKG_NAME)-$(PKG_VERSION)/;" \
  32         $(addprefix $(LINUX_TLD)/,$(BPF_FILES))
  33
  34 include $(INCLUDE_DIR)/package.mk
  35 include $(INCLUDE_DIR)/nls.mk
  36
  37 define Package/bpftool/Default
  38   SECTION:=net
  39   CATEGORY:=Network
  40   TITLE:=bpftool - eBPF subsystem utility
  41   LICENSE:=GPL-2.0-only OR BSD-2-Clause
  42   URL:=http://www.kernel.org
  43   DEPENDS:=+libelf
  44 endef
  45
  46 define Package/bpftool-minimal
  47   $(call Package/bpftool/Default)
  48   TITLE+= (Minimal)
  49   VARIANT:=minimal
  50   DEFAULT_VARIANT:=1
  51   PROVIDES:=bpftool
  52   ALTERNATIVES:=200:/usr/sbin/bpftool:/usr/libexec/bpftool-minimal
  53 endef
  54
  55 define Package/bpftool-full
  56   $(call Package/bpftool/Default)
  57   TITLE+= (Full)
  58   VARIANT:=full
  59   PROVIDES:=bpftool
  60   ALTERNATIVES:=300:/usr/sbin/bpftool:/usr/libexec/bpftool-full
  61   DEPENDS+= +libbfd +libopcodes
  62 endef
  63
  64 define Package/bpftool-minimal/description
  65   A tool for inspection and simple manipulation of eBPF programs and maps.
  66 endef
  67
  68 define Package/bpftool-full/description
  69   A tool for inspection and simple manipulation of eBPF programs and maps.
  70   This full version uses libbfd and libopcodes to support disassembly of
  71   eBPF programs and jited code.
  72 endef
  73
  74 define Package/libbpf
  75   SECTION:=libs
  76   CATEGORY:=Libraries
  77   TITLE:=libbpf - eBPF helper library
  78   VARIANT:=lib
  79   LICENSE:=LGPL-2.1 OR BSD-2-Clause
  80   ABI_VERSION:=0
  81   URL:=http://www.kernel.org
  82   DEPENDS:=+libelf
  83 endef
  84
  85 define Package/libbpf/description
  86   libbpf is a library for loading eBPF programs and reading and manipulating eBPF objects from user-space.
  87 endef
  88
  89
  90 # LTO not compatible with DSO using PIC
  91 ifneq ($(BUILD_VARIANT),lib)
  92   TARGET_CFLAGS += -ffunction-sections -fdata-sections -flto
  93   TARGET_LDFLAGS += -Wl,--gc-sections
  94 endif
  95
  96 MAKE_VARS = \
  97         EXTRA_CFLAGS="$(TARGET_CFLAGS) $(TARGET_CPPFLAGS)" \
  98         LDFLAGS="$(TARGET_LDFLAGS)"
  99
 100 MAKE_FLAGS += \
 101         BPFTOOL_VERSION="$(LINUX_VERSION)" \
 102         FEATURES_DUMP="$(PKG_BUILD_DIR)/FEATURE-DUMP.openwrt" \
 103         OUTPUT="$(PKG_BUILD_DIR)/" \
 104         prefix="/usr" \
 105         $(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='')
 106
 107 ifeq ($(BUILD_VARIANT),full)
 108   HAVE_LIBBFD:=1
 109   HAVE_LIBCAP:=0
 110   HAVE_CLANG:=0
 111   MAKE_PATH:=tools/bpf/bpftool
 112 else ifeq ($(BUILD_VARIANT),minimal)
 113   HAVE_LIBBFD:=0
 114   HAVE_LIBCAP:=0
 115   HAVE_CLANG:=0
 116   MAKE_PATH:=tools/bpf/bpftool
 117 else ifeq ($(BUILD_VARIANT),lib)
 118   HAVE_LIBBFD:=0
 119   HAVE_LIBCAP:=0
 120   HAVE_CLANG:=0
 121   MAKE_PATH:=tools/lib/bpf
 122 endif
 123
 124 # Perform a "throw-away" make to create a FEATURE-DUMP.* file to edit later.
 125 # The "//" in the make target is actually needed, very unPOSIXly.
 126 define Build/Configure
 127         +$(MAKE_VARS) $(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR)/tools/bpf/bpftool \
 128                 $(MAKE_FLAGS) FEATURES_DUMP= $(PKG_BUILD_DIR)//libbpf/libbpf.a
 129         (cd $(PKG_BUILD_DIR); cat FEATURE-DUMP.bpftool libbpf/FEATURE-DUMP.libbpf \
 130                 | sort | uniq > FEATURE-DUMP.openwrt)
 131         $(SED) 's/feature-libbfd=1/feature-libbfd=$(HAVE_LIBBFD)/' \
 132                 -e 's/feature-libcap=1/feature-libcap=$(HAVE_LIBCAP)/' \
 133                 -e 's/feature-clang-bpf-co-re=1/feature-clang-bpf-co-re=$(HAVE_CLANG)/' \
 134                 $(PKG_BUILD_DIR)/FEATURE-DUMP.openwrt
 135 endef
 136
 137 define Build/InstallDev/libbpf
 138         $(INSTALL_DIR) $(1)/usr/include/bpf
 139         $(CP) $(PKG_INSTALL_DIR)/usr/include/bpf/*.h $(1)/usr/include/bpf/
 140         $(INSTALL_DIR) $(1)/usr/lib
 141         $(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/libbpf.{a,so*} \
 142                 $(1)/usr/lib/
 143         $(INSTALL_DIR) $(1)/usr/lib/pkgconfig
 144         $(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/pkgconfig/libbpf.pc \
 145                 $(1)/usr/lib/pkgconfig/
 146         $(SED) 's,/usr/include,$$$${prefix}/include,g' \
 147                 $(1)/usr/lib/pkgconfig/libbpf.pc
 148         $(SED) 's,/usr/lib,$$$${exec_prefix}/lib,g' \
 149                 $(1)/usr/lib/pkgconfig/libbpf.pc
 150 endef
 151
 152 ifeq ($(BUILD_VARIANT),lib)
 153   Build/InstallDev=$(Build/InstallDev/libbpf)
 154 endif
 155
 156 define Package/bpftool-$(BUILD_VARIANT)/install
 157         $(INSTALL_DIR) $(1)/usr/libexec
 158         $(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/bpftool \
 159                 $(1)/usr/libexec/bpftool-$(BUILD_VARIANT)
 160 endef
 161
 162 define Package/libbpf/install
 163         $(INSTALL_DIR) $(1)/usr/lib
 164         $(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/libbpf.so.* $(1)/usr/lib/
 165 endef
 166
 167 $(eval $(call BuildPackage,libbpf))
 168 $(eval $(call BuildPackage,bpftool-full))
 169 $(eval $(call BuildPackage,bpftool-minimal))