# Copyright (c) 2018 Cisco and/or its affiliates. # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at: # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. LIBBPF_DEBUG?=n libbpf_version := 0.2 libbpf_tarball := v$(libbpf_version).tar.gz libbpf_tarball_md5sum_0.2 := cd0f82d76a9830c1e66b1a249393d5a8 libbpf_tarball_md5sum_0.1.0 := 00b991a6e2d28d797a56ab1575ed40e1 libbpf_tarball_md5sum := $(libbpf_tarball_md5sum_$(libbpf_version)) libbpf_tarball_strip_dirs := 1 libbpf_url := https://github.com/libbpf/libbpf/archive/$(libbpf_tarball) LIBBPF_CFLAGS:=-g -Werror -Wall -fPIC -fvisibility=hidden ifeq ($(LIBBPF_DEBUG),y) LIBBPF_CFLAGS+= -O0 else LIBBPF_CFLAGS+= -O2 endif # check for libelf, zlib and kernel if_xdp.h presence LIBBPF_DEPS_CHECK:="\#include <linux/if_xdp.h>\\n\#include <gelf.h>\\n\#include <zlib.h>\\nint main(void){return 0;}" LIBBPF_DEPS_CHECK:=$(shell echo -e $(LIBBPF_DEPS_CHECK) | $(CC) -xc -lelf -lz -o /dev/null - > /dev/null 2>&1) LIBBPF_DEPS_CHECK:=$(.SHELLSTATUS) define libbpf_config_cmds @true endef define libbpf_build_cmds__ BUILD_STATIC_ONLY=y OBJDIR='$(libbpf_build_dir)' PREFIX='' DESTDIR='$(libbpf_install_dir)' CFLAGS='$(LIBBPF_CFLAGS)' make -C '$(libbpf_src_dir)/src' $(1) > $(2) endef define libbpf_build_cmds $(call libbpf_build_cmds__,,$(libbpf_build_log)) endef define libbpf_install_cmds $(call libbpf_build_cmds__,install,$(libbpf_install_log)) endef ifneq ($(LIBBPF_DEPS_CHECK),0) $(warning "Missing libbpf dependencies. libbpf will be skipped.") libbpf-install: @true else $(eval $(call package,libbpf)) endif