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openwrt/package/network/utils/bpftools/Makefile

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bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
#
# Copyright (C) 2020 Tony Ambardar <itugrok@yahoo.com>
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
PKG_NAME:=bpftools
bpftools: update to v5.11.16, simplify make Update to the latest stable upstream version. Drop unneeded make variables to remove redundant assignments seen during invocation of package Makefile. Also remove the following patch now included upstream: * 200-fix-install-param-order-on-macos.patch Compile and run-tested on malta/mips32be, using bpftool directly and also libbpf (linked with tc) to inspect and load simple eBPF programs. Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2021-04-11 00:40:21 +00:00
PKG_RELEASE:=1
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
bpftools: update to standalone bpftools + libbpf, use the latest version Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-15 13:33:59 +00:00
PKG_SOURCE_URL:=https://github.com/libbpf/bpftool
PKG_SOURCE_PROTO:=git
PKG_SOURCE_DATE:=2022-03-08
PKG_SOURCE_VERSION:=04c465fd1f561f67796dc68bbfe1aa7cfa956c3c
PKG_MIRROR_HASH:=e22a954cd186f43228a96586bbdc120b11e6c87360ab88ae96ba37afb9c7cb58
PKG_ABI_VERSION:=$(call abi_version_str,$(PKG_SOURCE_DATE))
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
PKG_MAINTAINER:=Tony Ambardar <itugrok@yahoo.com>
PKG_USE_MIPS16:=0
PKG_BUILD_PARALLEL:=1
PKG_INSTALL:=1
include $(INCLUDE_DIR)/package.mk
bpftools: support NLS, fix ppc build and update to 5.8.9 With global NLS support enabled (CONFIG_BUILD_NLS), the linked libelf.so and libbfd.so libraries will depend on libintl.so. Import the nls.mk helper to set library prefixes and flags accordingly, and also conditionally add "-lintl" as link-time library. Fix a build error on ppc due to a EDEADLOCK redefinition in errno.h. Use upstream stable kernel 5.8.9, and fix overriding of feature detection to only allow/hide detected features. Also refresh existing patches. Fixes: 2f0d672088 ("bpftools: add utility and library packages supporting eBPF usage") Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-30 22:54:51 +00:00
include $(INCLUDE_DIR)/nls.mk
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
define Package/bpftool/Default
SECTION:=net
CATEGORY:=Network
TITLE:=bpftool - eBPF subsystem utility
LICENSE:=GPL-2.0-only OR BSD-2-Clause
URL:=http://www.kernel.org
DEPENDS:=+libelf
endef
define Package/bpftool-minimal
$(call Package/bpftool/Default)
TITLE+= (Minimal)
VARIANT:=minimal
DEFAULT_VARIANT:=1
PROVIDES:=bpftool
ALTERNATIVES:=200:/usr/sbin/bpftool:/usr/libexec/bpftool-minimal
endef
define Package/bpftool-full
$(call Package/bpftool/Default)
TITLE+= (Full)
VARIANT:=full
PROVIDES:=bpftool
ALTERNATIVES:=300:/usr/sbin/bpftool:/usr/libexec/bpftool-full
DEPENDS+= +libbfd +libopcodes
endef
define Package/bpftool-minimal/description
A tool for inspection and simple manipulation of eBPF programs and maps.
endef
define Package/bpftool-full/description
A tool for inspection and simple manipulation of eBPF programs and maps.
This full version uses libbfd and libopcodes to support disassembly of
eBPF programs and jited code.
endef
define Package/libbpf
SECTION:=libs
CATEGORY:=Libraries
TITLE:=libbpf - eBPF helper library
VARIANT:=lib
LICENSE:=LGPL-2.1 OR BSD-2-Clause
bpftools: update to standalone bpftools + libbpf, use the latest version Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-15 13:33:59 +00:00
ABI_VERSION:=$(PKG_ABI_VERSION)
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
URL:=http://www.kernel.org
DEPENDS:=+libelf
endef
define Package/libbpf/description
libbpf is a library for loading eBPF programs and reading and manipulating eBPF objects from user-space.
endef
# LTO not compatible with DSO using PIC
ifneq ($(BUILD_VARIANT),lib)
TARGET_CFLAGS += -ffunction-sections -fdata-sections -flto
TARGET_LDFLAGS += -Wl,--gc-sections
endif
bpftools: update to standalone bpftools + libbpf, use the latest version Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-15 13:33:59 +00:00
ifeq ($(BUILD_VARIANT),full)
full:=1
else
full:=0
endif
bpftools: update to v5.11.16, simplify make Update to the latest stable upstream version. Drop unneeded make variables to remove redundant assignments seen during invocation of package Makefile. Also remove the following patch now included upstream: * 200-fix-install-param-order-on-macos.patch Compile and run-tested on malta/mips32be, using bpftool directly and also libbpf (linked with tc) to inspect and load simple eBPF programs. Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2021-04-11 00:40:21 +00:00
MAKE_VARS = \
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
EXTRA_CFLAGS="$(TARGET_CFLAGS) $(TARGET_CPPFLAGS)" \
bpftools: update to v5.11.16, simplify make Update to the latest stable upstream version. Drop unneeded make variables to remove redundant assignments seen during invocation of package Makefile. Also remove the following patch now included upstream: * 200-fix-install-param-order-on-macos.patch Compile and run-tested on malta/mips32be, using bpftool directly and also libbpf (linked with tc) to inspect and load simple eBPF programs. Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2021-04-11 00:40:21 +00:00
LDFLAGS="$(TARGET_LDFLAGS)"
MAKE_FLAGS += \
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
OUTPUT="$(PKG_BUILD_DIR)/" \
prefix="/usr" \
bpftools: update to standalone bpftools + libbpf, use the latest version Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-15 13:33:59 +00:00
$(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='') \
LIBSUBDIR=lib \
check_feat=0 \
feature-clang-bpf-co-re=0 \
feature-reallocarray=1 \
feature-zlib=1 \
feature-libbfd=$(full) \
feature-libcap=0 \
feature-disassembler-four-args=$(full)
ifeq ($(BUILD_VARIANT),lib)
MAKE_PATH = libbpf/src
else
MAKE_PATH = src
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
endif
define Build/InstallDev/libbpf
$(INSTALL_DIR) $(1)/usr/include/bpf
$(CP) $(PKG_INSTALL_DIR)/usr/include/bpf/*.h $(1)/usr/include/bpf/
$(INSTALL_DIR) $(1)/usr/lib
bpftools: fix library path on 64 bit systems drop the use of LIB_SUFFIX Fixes: 00cbf6f6ab1d ("bpftools: update to standalone bpftools + libbpf, use the latest version") Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-19 12:28:41 +00:00
$(CP) $(PKG_INSTALL_DIR)/usr/lib/libbpf.{a,so*} \
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
$(1)/usr/lib/
$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
bpftools: fix library path on 64 bit systems drop the use of LIB_SUFFIX Fixes: 00cbf6f6ab1d ("bpftools: update to standalone bpftools + libbpf, use the latest version") Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-19 12:28:41 +00:00
$(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libbpf.pc \
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
$(1)/usr/lib/pkgconfig/
bpftools: fix libbpf pkgconfig file 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: 2f0d672088c3 ("bpftools: add utility and library packages supporting eBPF usage") Reported-by: Russell Senior <russell@personaltelco.net> Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2021-03-01 09:07:45 +00:00
$(SED) 's,/usr/include,$$$${prefix}/include,g' \
$(1)/usr/lib/pkgconfig/libbpf.pc
$(SED) 's,/usr/lib,$$$${exec_prefix}/lib,g' \
$(1)/usr/lib/pkgconfig/libbpf.pc
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
endef
ifeq ($(BUILD_VARIANT),lib)
Build/InstallDev=$(Build/InstallDev/libbpf)
endif
define Package/bpftool-$(BUILD_VARIANT)/install
$(INSTALL_DIR) $(1)/usr/libexec
$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/bpftool \
$(1)/usr/libexec/bpftool-$(BUILD_VARIANT)
endef
define Package/libbpf/install
$(INSTALL_DIR) $(1)/usr/lib
bpftools: fix library path on 64 bit systems drop the use of LIB_SUFFIX Fixes: 00cbf6f6ab1d ("bpftools: update to standalone bpftools + libbpf, use the latest version") Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-19 12:28:41 +00:00
$(CP) $(PKG_INSTALL_DIR)/usr/lib/libbpf.so.* $(1)/usr/lib/
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
endef
build: reorder more BuildPackages lines to deal with ABI_VERSION After the ABI version rework, packages need to be declared in the order of their dependencies, so that dependent packages will use the right ABI version Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-02-15 23:03:28 +00:00
$(eval $(call BuildPackage,libbpf))
bpftools: add utility and library packages supporting eBPF usage Add support for building bpftool and libbpf from the latest 5.8.3 kernel sources, ensuring up-to-date functionality and fixes. Both are written to be backwards compatible, which simplfies build and usage across different OpenWRT image kernels. 'bpftool' is the primary userspace tool widely used for introspection and manipulation of eBPF programs and maps. Two variants are built: a 'full' version which supports object disassembly and depends on libbfd/libopcodes (total ~500KB); and a 'minimal' version without disassembly functions and dependencies. The default 'minimal' variant is otherwise fully functional, and both are compiled using LTO for further (~30KB) size reductions. 'libbpf' provides shared/static libraries and dev files needed for building userspace programs that perform eBPF interaction. Several cross-compilation and build-failure problems are addressed by new patches and ones backported from farther upstream: * 001-libbpf-ensure-no-local-symbols-counted-in-ABI-check.patch * 002-libbpf-fix-build-failure-from-uninitialized-variable.patch * 003-bpftool-allow-passing-BPFTOOL_VERSION-to-make.patch * 004-v5.9-bpftool-use-only-ftw-for-file-tree-parsing.patch Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2020-08-20 18:46:50 +00:00
$(eval $(call BuildPackage,bpftool-full))
$(eval $(call BuildPackage,bpftool-minimal))
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