1 # Copyright (c) 2018 Cisco and/or its affiliates.
2 # Licensed under the Apache License, Version 2.0 (the "License");
3 # you may not use this file except in compliance with the License.
4 # You may obtain a copy of the License at:
6 # http://www.apache.org/licenses/LICENSE-2.0
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
16 libbpf_version := 0.5.0
17 libbpf_tarball := v$(libbpf_version).tar.gz
18 libbpf_tarball_md5sum_0.2 := cd0f82d76a9830c1e66b1a249393d5a8
19 libbpf_tarball_md5sum_0.5.0:= ba0a514d2775f033c24a6fec37e587bc
20 libbpf_tarball_md5sum := $(libbpf_tarball_md5sum_$(libbpf_version))
21 libbpf_tarball_strip_dirs := 1
22 libbpf_url := https://github.com/libbpf/libbpf/archive/$(libbpf_tarball)
24 LIBBPF_CFLAGS:=-g -Werror -Wall -fPIC -fvisibility=hidden
25 ifeq ($(LIBBPF_DEBUG),y)
31 # check for libelf, zlib and kernel if_xdp.h presence
32 LIBBPF_DEPS_CHECK:="\#include <linux/if_xdp.h>\\n\#include <gelf.h>\\n\#include <zlib.h>\\nint main(void){return 0;}"
33 LIBBPF_DEPS_CHECK:=$(shell echo -e $(LIBBPF_DEPS_CHECK) | $(CC) -xc -lelf -lz -o /dev/null - > /dev/null 2>&1)
34 LIBBPF_DEPS_CHECK:=$(.SHELLSTATUS)
36 define libbpf_config_cmds
40 define libbpf_build_cmds__
41 BUILD_STATIC_ONLY=y OBJDIR='$(libbpf_build_dir)' PREFIX='' DESTDIR='$(libbpf_install_dir)' CFLAGS='$(LIBBPF_CFLAGS)' make -C '$(libbpf_src_dir)/src' $(1) > $(2)
44 define libbpf_build_cmds
45 $(call libbpf_build_cmds__,,$(libbpf_build_log))
48 define libbpf_install_cmds
49 $(call libbpf_build_cmds__,install,$(libbpf_install_log))
52 ifneq ($(LIBBPF_DEPS_CHECK),0)
53 $(warning "Missing libbpf dependencies. libbpf will be skipped.")
57 $(eval $(call package,libbpf))