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openwrt/package/network/utils/bpftool/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
#
bpftool: Update to v7.4.0 Update to the latest upstream release to include recent improvements and bugfixes. Update copyright, fix typo in PKG_NAME, and remove unneeded use of MAKE_VARS definition in Makefile. Drop 001-cflags.patch and simplify 002-includes.patch after refreshing. Also simplify LTO/DCE build flags. Link: https://github.com/libbpf/bpftool/releases/tag/v7.4.0 Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2024-04-03 22:31:22 +00:00
# Copyright (C) 2020-2024 Tony Ambardar <itugrok@yahoo.com>
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
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
bpftool: Update to v7.4.0 Update to the latest upstream release to include recent improvements and bugfixes. Update copyright, fix typo in PKG_NAME, and remove unneeded use of MAKE_VARS definition in Makefile. Drop 001-cflags.patch and simplify 002-includes.patch after refreshing. Also simplify LTO/DCE build flags. Link: https://github.com/libbpf/bpftool/releases/tag/v7.4.0 Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2024-04-03 22:31:22 +00:00
PKG_NAME:=bpftool
PKG_VERSION:=7.4.0
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
bpftool: Update to v7.4.0 Update to the latest upstream release to include recent improvements and bugfixes. Update copyright, fix typo in PKG_NAME, and remove unneeded use of MAKE_VARS definition in Makefile. Drop 001-cflags.patch and simplify 002-includes.patch after refreshing. Also simplify LTO/DCE build flags. Link: https://github.com/libbpf/bpftool/releases/tag/v7.4.0 Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2024-04-03 22:31:22 +00:00
PKG_MIRROR_HASH:=18e22f72e67ff402b5ecaf314445f25c40bfe23299cb783b5834a496297c51ed
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_PROTO:=git
bpftool: Update to v7.4.0 Update to the latest upstream release to include recent improvements and bugfixes. Update copyright, fix typo in PKG_NAME, and remove unneeded use of MAKE_VARS definition in Makefile. Drop 001-cflags.patch and simplify 002-includes.patch after refreshing. Also simplify LTO/DCE build flags. Link: https://github.com/libbpf/bpftool/releases/tag/v7.4.0 Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2024-04-03 22:31:22 +00:00
PKG_SOURCE_VERSION:=v7.4.0
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>
bpftool: Update to v7.4.0 Update to the latest upstream release to include recent improvements and bugfixes. Update copyright, fix typo in PKG_NAME, and remove unneeded use of MAKE_VARS definition in Makefile. Drop 001-cflags.patch and simplify 002-includes.patch after refreshing. Also simplify LTO/DCE build flags. Link: https://github.com/libbpf/bpftool/releases/tag/v7.4.0 Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2024-04-03 22:31:22 +00:00
PKG_BUILD_FLAGS:=no-mips16 gc-sections lto
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_BUILD_PARALLEL:=1
PKG_INSTALL:=1
bpftool: add host build 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>
2024-08-09 16:42:34 +00:00
HOST_BUILD_PARALLEL:=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
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
bpftool: add host build 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>
2024-08-09 16:42:34 +00:00
include $(INCLUDE_DIR)/host-build.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
$(call Package/bpftool/Default)
TITLE+= (Full)
VARIANT:=full
PROVIDES:=bpftool
ALTERNATIVES:=300:/usr/sbin/bpftool:/usr/libexec/bpftool-full
DEPENDS+= +libbfd +libopcodes
endef
define Package/bpftool-minimal/description
A tool for inspection and simple manipulation of eBPF programs and maps.
endef
define Package/bpftool-full/description
A tool for inspection and simple manipulation of eBPF programs and maps.
This full version uses libbfd and libopcodes to support disassembly of
eBPF programs and jited code.
endef
bpftools: update to standalone bpftools + libbpf, use the latest version Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-15 13:33:59 +00:00
ifeq ($(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_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='') \
check_feat=0 \
feature-clang-bpf-co-re=0 \
feature-libbfd=$(full) \
bpftool: Update to version 7.1.0 bpftool changelog: https://github.com/libbpf/bpftool/releases libbpf changelog: https://github.com/libbpf/libbpf/releases This updates the bfptool to version 7.1.0. This also includes an update of the libbpf to version 1.1. This also adds some new feature options and removes some old ones which were also removed form the source code. zlib for example is now mandatory. Add -flto also to LD flags to make it really work. Before this change bpftool was on a git commit between version 6.7 and 6.8 and libbpf was on a commit between version 0.7 and 0.8. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2023-02-25 21:21:15 +00:00
feature-llvm=0 \
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
feature-libcap=0 \
bpftool: Update to version 7.1.0 bpftool changelog: https://github.com/libbpf/bpftool/releases libbpf changelog: https://github.com/libbpf/libbpf/releases This updates the bfptool to version 7.1.0. This also includes an update of the libbpf to version 1.1. This also adds some new feature options and removes some old ones which were also removed form the source code. zlib for example is now mandatory. Add -flto also to LD flags to make it really work. Before this change bpftool was on a git commit between version 6.7 and 6.8 and libbpf was on a commit between version 0.7 and 0.8. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2023-02-25 21:21:15 +00:00
feature-disassembler-four-args=1 \
binutils: Update to version 2.40 binutils 2.39: https://lists.gnu.org/archive/html/info-gnu/2022-08/msg00002.html binutils 2.40: https://lists.gnu.org/archive/html/info-gnu/2023-01/msg00003.html This version includes a new libsframe.so library, pack it into the libbfd package as it is used by this library. Also deactivate some optional configuration options for now. An extra patch to fix compile problem in AARCH64 is added. gprofng needs a C++ standard library, deactivate it for now. Activate feature-disassembler-init-styled in bpftools too to fix compilation with the updated binutils. An bpftool version 7.0 or later is needed for binutils 2.39 and later. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2023-02-26 14:47:09 +00:00
feature-disassembler-init-styled=1
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
bpftools: update, split off bpftool and libbpf packages My original bpftools package made "variant" builds of bpftool and libbpf as a convenience, since both used the same local kernel sources with the same versioning. This is no longer the case, since the commit below switched to using an out-of-tree build mirror hosting repos for each. Replace bpftools with separate bpftool and libbpf packages, each simplified and correctly versioned. Also fix the broken libbpf ABI introduced in the same commit. Existing build .config files are not impacted. Fixes: 00cbf6f6ab1d ("bpftools: update to standalone bpftools + libbpf, use the latest version") Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
2023-05-21 09:14:37 +00:00
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
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
bpftool: add host build 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>
2024-08-09 16:42:34 +00:00
HOST_MAKE_FLAGS += \
OUTPUT="$(HOST_BUILD_DIR)/" \
prefix="/usr" \
$(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='') \
check_feat=0 \
feature-clang-bpf-co-re=0 \
feature-libbfd=1 \
feature-llvm=0 \
feature-libcap=0 \
feature-disassembler-four-args=1 \
feature-disassembler-init-styled=1
HOST_MAKE_PATH = src
define Host/Install
$(INSTALL_DIR) $(STAGING_DIR_HOST)/usr/sbin
$(INSTALL_BIN) $(HOST_BUILD_DIR)/bpftool \
$(STAGING_DIR_HOST)/usr/sbin/bpftool
endef
define Host/Clean
rm -f $(STAGING_DIR_HOST)/usr/sbin/bpftool
endef
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))
bpftool: add host build 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>
2024-08-09 16:42:34 +00:00
$(eval $(call HostBuild))
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