9e64e4ce26
The pkgconfig file hardcodes a host library directory which cannot be
overridden by OpenWrt during builds. Use SED to fix this and potential
include directory problems, as is done with several other packages.
This fixes a strange issue intermittently seen building iproute2 on the
oxnas target:
iptables modules directory: /usr/lib/iptables
libc has setns: yes
SELinux support: no
libbpf support: no
libbpf version 0.3.0 is too low, please update it to at least 0.1.0
LIBBPF_FORCE=on set, but couldn't find a usable libbpf
Fixes: 2f0d672088 ("bpftools: add utility and library packages
supporting eBPF usage")
Reported-by: Russell Senior <russell@personaltelco.net>
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
172 lines
4.8 KiB
Makefile
172 lines
4.8 KiB
Makefile
#
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# Copyright (C) 2020 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 $(TOPDIR)/rules.mk
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PKG_NAME:=bpftools
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PKG_VERSION:=5.11.2
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PKG_RELEASE:=1
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PKG_SOURCE:=linux-$(PKG_VERSION).tar.xz
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PKG_SOURCE_URL:=@KERNEL/linux/kernel/v5.x
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PKG_HASH:=904a5b3cbaf5264ef8da6c7a5445fa7ea19168ad77fb83a7cc1b8ba95d52d0a0
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PKG_MAINTAINER:=Tony Ambardar <itugrok@yahoo.com>
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PKG_USE_MIPS16:=0
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PKG_BUILD_PARALLEL:=1
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PKG_INSTALL:=1
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LINUX_VERSION:=$(PKG_VERSION)
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LINUX_TLD:=linux-$(LINUX_VERSION)
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BPF_FILES:= \
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kernel/bpf scripts tools/Makefile tools/bpf tools/perf/perf-sys.h \
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tools/arch tools/build tools/include tools/lib tools/scripts
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TAR_OPTIONS+= \
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--transform="s;$(LINUX_TLD)/;$(PKG_NAME)-$(PKG_VERSION)/;" \
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$(addprefix $(LINUX_TLD)/,$(BPF_FILES))
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include $(INCLUDE_DIR)/package.mk
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include $(INCLUDE_DIR)/nls.mk
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define Package/bpftool/Default
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SECTION:=net
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CATEGORY:=Network
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TITLE:=bpftool - eBPF subsystem utility
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LICENSE:=GPL-2.0-only OR BSD-2-Clause
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URL:=http://www.kernel.org
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DEPENDS:=+libelf
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endef
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define Package/bpftool-minimal
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$(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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define Package/libbpf
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SECTION:=libs
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CATEGORY:=Libraries
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TITLE:=libbpf - eBPF helper library
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VARIANT:=lib
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LICENSE:=LGPL-2.1 OR BSD-2-Clause
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ABI_VERSION:=0
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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/libbpf/description
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libbpf is a library for loading eBPF programs and reading and manipulating eBPF objects from user-space.
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endef
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# LTO not compatible with DSO using PIC
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ifneq ($(BUILD_VARIANT),lib)
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TARGET_CFLAGS += -ffunction-sections -fdata-sections -flto
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TARGET_LDFLAGS += -Wl,--gc-sections
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endif
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ifneq ($(INTL_FULL),)
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TARGET_LDFLAGS += -Wl,-lintl
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endif
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MAKE_FLAGS += \
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EXTRA_CFLAGS="$(TARGET_CFLAGS) $(TARGET_CPPFLAGS)" \
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LDFLAGS="$(TARGET_LDFLAGS)" \
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BPFTOOL_VERSION="$(LINUX_VERSION)" \
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FEATURES_DUMP="$(PKG_BUILD_DIR)/FEATURE-DUMP.openwrt" \
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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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ifeq ($(BUILD_VARIANT),full)
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HAVE_LIBBFD:=1
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HAVE_LIBCAP:=0
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HAVE_CLANG:=0
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MAKE_PATH:=tools/bpf/bpftool
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else ifeq ($(BUILD_VARIANT),minimal)
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HAVE_LIBBFD:=0
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HAVE_LIBCAP:=0
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HAVE_CLANG:=0
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MAKE_PATH:=tools/bpf/bpftool
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else ifeq ($(BUILD_VARIANT),lib)
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HAVE_LIBBFD:=0
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HAVE_LIBCAP:=0
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HAVE_CLANG:=0
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MAKE_PATH:=tools/lib/bpf
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endif
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# Perform a "throw-away" make to create a FEATURE-DUMP.* file to edit later.
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# The "//" in the make target is actually needed, very unPOSIXly.
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define Build/Configure
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+$(MAKE_VARS) $(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR)/tools/bpf/bpftool \
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$(MAKE_FLAGS) FEATURES_DUMP= $(PKG_BUILD_DIR)//libbpf/libbpf.a
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(cd $(PKG_BUILD_DIR); cat FEATURE-DUMP.bpftool libbpf/FEATURE-DUMP.libbpf \
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| sort | uniq > FEATURE-DUMP.openwrt)
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$(SED) 's/feature-libbfd=1/feature-libbfd=$(HAVE_LIBBFD)/' \
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-e 's/feature-libcap=1/feature-libcap=$(HAVE_LIBCAP)/' \
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-e 's/feature-clang-bpf-global-var=1/feature-clang-bpf-global-var=$(HAVE_CLANG)/' \
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$(PKG_BUILD_DIR)/FEATURE-DUMP.openwrt
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endef
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define Build/InstallDev/libbpf
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$(INSTALL_DIR) $(1)/usr/include/bpf
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$(CP) $(PKG_INSTALL_DIR)/usr/include/bpf/*.h $(1)/usr/include/bpf/
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$(INSTALL_DIR) $(1)/usr/lib
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$(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/libbpf.{a,so*} \
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$(1)/usr/lib/
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$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
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$(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/pkgconfig/libbpf.pc \
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$(1)/usr/lib/pkgconfig/
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$(SED) 's,/usr/include,$$$${prefix}/include,g' \
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$(1)/usr/lib/pkgconfig/libbpf.pc
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$(SED) 's,/usr/lib,$$$${exec_prefix}/lib,g' \
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$(1)/usr/lib/pkgconfig/libbpf.pc
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endef
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ifeq ($(BUILD_VARIANT),lib)
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Build/InstallDev=$(Build/InstallDev/libbpf)
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endif
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define Package/bpftool-$(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-$(BUILD_VARIANT)
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endef
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define Package/libbpf/install
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$(INSTALL_DIR) $(1)/usr/lib
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$(CP) $(PKG_INSTALL_DIR)/usr/lib$(LIB_SUFFIX)/libbpf.so.* $(1)/usr/lib/
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endef
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$(eval $(call BuildPackage,libbpf))
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$(eval $(call BuildPackage,bpftool-full))
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$(eval $(call BuildPackage,bpftool-minimal))
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