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 $(TOPDIR)/rules.mk
   9
  10 PKG_NAME:=bpftools
  11 PKG_VERSION:=5.8.3
  12 PKG_RELEASE:=1
  13
  14 PKG_SOURCE:=linux-$(PKG_VERSION).tar.xz
  15 PKG_SOURCE_URL:=@KERNEL/linux/kernel/v5.x
  16 PKG_HASH:=8ea27e1ed38981f772cc6d5f16ab8dbb8052c3800ba0494bd798fbb95dcc1779
  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
  36 define Package/bpftool/Default
  37   SECTION:=net
  38   CATEGORY:=Network
  39   TITLE:=bpftool - eBPF subsystem utility
  40   LICENSE:=GPL-2.0-only OR BSD-2-Clause
  41   URL:=http://www.kernel.org
  42   DEPENDS:=+libelf
  43 endef
  44
  45 define Package/bpftool-minimal
  46   $(call Package/bpftool/Default)
  47   TITLE+= (Minimal)
  48   VARIANT:=minimal
  49   DEFAULT_VARIANT:=1
  50   PROVIDES:=bpftool
  51   ALTERNATIVES:=200:/usr/sbin/bpftool:/usr/libexec/bpftool-minimal
  52 endef
  53
  54 define Package/bpftool-full
  55   $(call Package/bpftool/Default)
  56   TITLE+= (Full)
  57   VARIANT:=full
  58   PROVIDES:=bpftool
  59   ALTERNATIVES:=300:/usr/sbin/bpftool:/usr/libexec/bpftool-full
  60   DEPENDS+= +libbfd +libopcodes
  61 endef
  62
  63 define Package/bpftool-minimal/description
  64   A tool for inspection and simple manipulation of eBPF programs and maps.
  65 endef
  66
  67 define Package/bpftool-full/description
  68   A tool for inspection and simple manipulation of eBPF programs and maps.
  69   This full version uses libbfd and libopcodes to support disassembly of
  70   eBPF programs and jited code.
  71 endef
  72
  73 define Package/libbpf
  74   SECTION:=libs
  75   CATEGORY:=Libraries
  76   TITLE:=libbpf - eBPF helper library
  77   VARIANT:=lib
  78   LICENSE:=LGPL-2.1 OR BSD-2-Clause
  79   ABI_VERSION:=0
  80   URL:=http://www.kernel.org
  81   DEPENDS:=+libelf
  82 endef
  83
  84 define Package/libbpf/description
  85   libbpf is a library for loading eBPF programs and reading and manipulating eBPF objects from user-space.
  86 endef
  87
  88
  89 # LTO not compatible with DSO using PIC
  90 ifneq ($(BUILD_VARIANT),lib)
  91   TARGET_CFLAGS += -ffunction-sections -fdata-sections -flto
  92   TARGET_LDFLAGS += -Wl,--gc-sections
  93 endif
  94
  95 MAKE_FLAGS += \
  96         EXTRA_CFLAGS="$(TARGET_CFLAGS) $(TARGET_CPPFLAGS)" \
  97         LDFLAGS="$(TARGET_LDFLAGS)" \
  98         BPFTOOL_VERSION="$(LINUX_VERSION)" \
  99         FEATURES_DUMP="$(PKG_BUILD_DIR)/FEATURE-DUMP.openwrt" \
 100         OUTPUT="$(PKG_BUILD_DIR)/" \
 101         prefix="/usr" \
 102         $(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='')
 103
 104 ifeq ($(BUILD_VARIANT),full)
 105   HAVE_LIBBFD:=1
 106   HAVE_LIBCAP:=0
 107   HAVE_CLANG:=0
 108   MAKE_PATH:=tools/bpf/bpftool
 109 else ifeq ($(BUILD_VARIANT),minimal)
 110   HAVE_LIBBFD:=0
 111   HAVE_LIBCAP:=0
 112   HAVE_CLANG:=0
 113   MAKE_PATH:=tools/bpf/bpftool
 114 else ifeq ($(BUILD_VARIANT),lib)
 115   HAVE_LIBBFD:=0
 116   HAVE_LIBCAP:=0
 117   HAVE_CLANG:=0
 118   MAKE_PATH:=tools/lib/bpf
 119 endif
 120
 121 # Perform a "throw-away" make to create a FEATURE-DUMP.* file to edit later.
 122 # The "//" in the make target is actually needed, very unPOSIXly.
 123 define Build/Configure
 124         +$(MAKE_VARS) $(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR)/tools/bpf/bpftool \
 125                 $(MAKE_FLAGS) FEATURES_DUMP= $(PKG_BUILD_DIR)//libbpf/libbpf.a
 126         (cd $(PKG_BUILD_DIR); cat FEATURE-DUMP.bpftool libbpf/FEATURE-DUMP.libbpf \
 127                 | sort | uniq > FEATURE-DUMP.openwrt)
 128         $(SED) 's/feature-libbfd=[01]/feature-libbfd=$(HAVE_LIBBFD)/' \
 129                 -e 's/feature-libcap=[01]/feature-libcap=$(HAVE_LIBCAP)/' \
 130                 -e 's/feature-clang-bpf-global-var=[01]/feature-clang-bpf-global-var=$(HAVE_CLANG)/' \
 131                 $(PKG_BUILD_DIR)/FEATURE-DUMP.openwrt
 132 endef
 133
 134 define Build/InstallDev/libbpf
 135         $(INSTALL_DIR) $(1)/usr/include/bpf
 136         $(CP) $(PKG_INSTALL_DIR)/usr/include/bpf/*.h $(1)/usr/include/bpf/
 137         $(INSTALL_DIR) $(1)/usr/lib
 138         $(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/libbpf.{a,so*} \
 139                 $(1)/usr/lib/
 140         $(INSTALL_DIR) $(1)/usr/lib/pkgconfig
 141         $(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/pkgconfig/libbpf.pc \
 142                 $(1)/usr/lib/pkgconfig/
 143 endef
 144
 145 ifeq ($(BUILD_VARIANT),lib)
 146   Build/InstallDev=$(Build/InstallDev/libbpf)
 147 endif
 148
 149 define Package/bpftool-$(BUILD_VARIANT)/install
 150         $(INSTALL_DIR) $(1)/usr/libexec
 151         $(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/bpftool \
 152                 $(1)/usr/libexec/bpftool-$(BUILD_VARIANT)
 153 endef
 154
 155 define Package/libbpf/install
 156         $(INSTALL_DIR) $(1)/usr/lib
 157         $(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/libbpf.so.* $(1)/usr/lib/
 158 endef
 159
 160 $(eval $(call BuildPackage,bpftool-full))
 161 $(eval $(call BuildPackage,bpftool-minimal))
 162 $(eval $(call BuildPackage,libbpf))