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 $(TOPDIR)/rules.mk
   9
  10 PKG_NAME:=bpftools
  11 PKG_VERSION:=5.10.10
  12 PKG_RELEASE:=1
  13
  14 PKG_SOURCE:=linux-$(PKG_VERSION).tar.xz
  15 PKG_SOURCE_URL:=@KERNEL/linux/kernel/v5.x
  16 PKG_HASH:=60ed866fa951522a5255ea37ec3ac2006d3f3427d4783a13ef478464f37cdb19
  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 ifneq ($(INTL_FULL),)
  97   TARGET_LDFLAGS += -Wl,-lintl
  98 endif
  99
 100 MAKE_FLAGS += \
 101         EXTRA_CFLAGS="$(TARGET_CFLAGS) $(TARGET_CPPFLAGS)" \
 102         LDFLAGS="$(TARGET_LDFLAGS)" \
 103         BPFTOOL_VERSION="$(LINUX_VERSION)" \
 104         FEATURES_DUMP="$(PKG_BUILD_DIR)/FEATURE-DUMP.openwrt" \
 105         OUTPUT="$(PKG_BUILD_DIR)/" \
 106         prefix="/usr" \
 107         $(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='')
 108
 109 ifeq ($(BUILD_VARIANT),full)
 110   HAVE_LIBBFD:=1
 111   HAVE_LIBCAP:=0
 112   HAVE_CLANG:=0
 113   MAKE_PATH:=tools/bpf/bpftool
 114 else ifeq ($(BUILD_VARIANT),minimal)
 115   HAVE_LIBBFD:=0
 116   HAVE_LIBCAP:=0
 117   HAVE_CLANG:=0
 118   MAKE_PATH:=tools/bpf/bpftool
 119 else ifeq ($(BUILD_VARIANT),lib)
 120   HAVE_LIBBFD:=0
 121   HAVE_LIBCAP:=0
 122   HAVE_CLANG:=0
 123   MAKE_PATH:=tools/lib/bpf
 124 endif
 125
 126 # Perform a "throw-away" make to create a FEATURE-DUMP.* file to edit later.
 127 # The "//" in the make target is actually needed, very unPOSIXly.
 128 define Build/Configure
 129         +$(MAKE_VARS) $(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR)/tools/bpf/bpftool \
 130                 $(MAKE_FLAGS) FEATURES_DUMP= $(PKG_BUILD_DIR)//libbpf/libbpf.a
 131         (cd $(PKG_BUILD_DIR); cat FEATURE-DUMP.bpftool libbpf/FEATURE-DUMP.libbpf \
 132                 | sort | uniq > FEATURE-DUMP.openwrt)
 133         $(SED) 's/feature-libbfd=1/feature-libbfd=$(HAVE_LIBBFD)/' \
 134                 -e 's/feature-libcap=1/feature-libcap=$(HAVE_LIBCAP)/' \
 135                 -e 's/feature-clang-bpf-global-var=1/feature-clang-bpf-global-var=$(HAVE_CLANG)/' \
 136                 $(PKG_BUILD_DIR)/FEATURE-DUMP.openwrt
 137 endef
 138
 139 define Build/InstallDev/libbpf
 140         $(INSTALL_DIR) $(1)/usr/include/bpf
 141         $(CP) $(PKG_INSTALL_DIR)/usr/include/bpf/*.h $(1)/usr/include/bpf/
 142         $(INSTALL_DIR) $(1)/usr/lib
 143         $(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/libbpf.{a,so*} \
 144                 $(1)/usr/lib/
 145         $(INSTALL_DIR) $(1)/usr/lib/pkgconfig
 146         $(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/pkgconfig/libbpf.pc \
 147                 $(1)/usr/lib/pkgconfig/
 148 endef
 149
 150 ifeq ($(BUILD_VARIANT),lib)
 151   Build/InstallDev=$(Build/InstallDev/libbpf)
 152 endif
 153
 154 define Package/bpftool-$(BUILD_VARIANT)/install
 155         $(INSTALL_DIR) $(1)/usr/libexec
 156         $(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/bpftool \
 157                 $(1)/usr/libexec/bpftool-$(BUILD_VARIANT)
 158 endef
 159
 160 define Package/libbpf/install
 161         $(INSTALL_DIR) $(1)/usr/lib
 162         $(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/libbpf.so.* $(1)/usr/lib/
 163 endef
 164
 165 $(eval $(call BuildPackage,bpftool-full))
 166 $(eval $(call BuildPackage,bpftool-minimal))
 167 $(eval $(call BuildPackage,libbpf))