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21b155e0ff
Besides probing BPF information in running system, bpftool is also used in generating skeleton, dumping BTF, etc. that is widely used in modern BPF development. Make it available as a host tool so that we can use it in package build. Tested build targeting malta/le on Arch Linux x86_64. bpftools currently does not support processing cross-endian BPF objects, so big-endian host is needed to build for big-endian targets using bpftools. Signed-off-by: Eric Long <i@hack3r.moe> Link: https://github.com/openwrt/openwrt/pull/16122 Signed-off-by: Robert Marko <robimarko@gmail.com>
121 lines
2.8 KiB
Makefile
121 lines
2.8 KiB
Makefile
#
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# Copyright (C) 2020-2024 Tony Ambardar <itugrok@yahoo.com>
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(TOPDIR)/rules.mk
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PKG_NAME:=bpftool
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PKG_VERSION:=7.4.0
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PKG_RELEASE:=1
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PKG_SOURCE_URL:=https://github.com/libbpf/bpftool
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PKG_MIRROR_HASH:=18e22f72e67ff402b5ecaf314445f25c40bfe23299cb783b5834a496297c51ed
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PKG_SOURCE_PROTO:=git
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PKG_SOURCE_VERSION:=v7.4.0
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PKG_MAINTAINER:=Tony Ambardar <itugrok@yahoo.com>
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PKG_BUILD_FLAGS:=no-mips16 gc-sections lto
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PKG_BUILD_PARALLEL:=1
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PKG_INSTALL:=1
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HOST_BUILD_PARALLEL:=1
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include $(INCLUDE_DIR)/package.mk
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include $(INCLUDE_DIR)/nls.mk
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include $(INCLUDE_DIR)/host-build.mk
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define Package/bpftool/Default
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SECTION:=net
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CATEGORY:=Network
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TITLE:=bpftool - eBPF subsystem utility
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LICENSE:=GPL-2.0-only OR BSD-2-Clause
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URL:=http://www.kernel.org
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DEPENDS:=+libelf
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endef
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define Package/bpftool-minimal
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$(call Package/bpftool/Default)
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TITLE+= (Minimal)
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VARIANT:=minimal
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DEFAULT_VARIANT:=1
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PROVIDES:=bpftool
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ALTERNATIVES:=200:/usr/sbin/bpftool:/usr/libexec/bpftool-minimal
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endef
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define Package/bpftool-full
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$(call Package/bpftool/Default)
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TITLE+= (Full)
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VARIANT:=full
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PROVIDES:=bpftool
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ALTERNATIVES:=300:/usr/sbin/bpftool:/usr/libexec/bpftool-full
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DEPENDS+= +libbfd +libopcodes
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endef
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define Package/bpftool-minimal/description
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A tool for inspection and simple manipulation of eBPF programs and maps.
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endef
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define Package/bpftool-full/description
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A tool for inspection and simple manipulation of eBPF programs and maps.
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This full version uses libbfd and libopcodes to support disassembly of
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eBPF programs and jited code.
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endef
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ifeq ($(BUILD_VARIANT),full)
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full:=1
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else
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full:=0
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endif
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MAKE_FLAGS += \
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OUTPUT="$(PKG_BUILD_DIR)/" \
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prefix="/usr" \
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$(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='') \
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check_feat=0 \
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feature-clang-bpf-co-re=0 \
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feature-libbfd=$(full) \
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feature-llvm=0 \
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feature-libcap=0 \
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feature-disassembler-four-args=1 \
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feature-disassembler-init-styled=1
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MAKE_PATH = src
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define Package/bpftool-$(BUILD_VARIANT)/install
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$(INSTALL_DIR) $(1)/usr/libexec
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$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/bpftool \
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$(1)/usr/libexec/bpftool-$(BUILD_VARIANT)
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endef
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HOST_MAKE_FLAGS += \
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OUTPUT="$(HOST_BUILD_DIR)/" \
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prefix="/usr" \
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$(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='') \
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check_feat=0 \
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feature-clang-bpf-co-re=0 \
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feature-libbfd=1 \
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feature-llvm=0 \
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feature-libcap=0 \
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feature-disassembler-four-args=1 \
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feature-disassembler-init-styled=1
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HOST_MAKE_PATH = src
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define Host/Install
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$(INSTALL_DIR) $(STAGING_DIR_HOST)/usr/sbin
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$(INSTALL_BIN) $(HOST_BUILD_DIR)/bpftool \
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$(STAGING_DIR_HOST)/usr/sbin/bpftool
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endef
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define Host/Clean
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rm -f $(STAGING_DIR_HOST)/usr/sbin/bpftool
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endef
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$(eval $(call BuildPackage,bpftool-full))
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$(eval $(call BuildPackage,bpftool-minimal))
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$(eval $(call HostBuild))
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