1################################################################################ 2# 3# libbpf 4# 5################################################################################ 6 7LIBBPF_VERSION = 0.4.0 8LIBBPF_SITE = $(call github,libbpf,libbpf,v$(LIBBPF_VERSION)) 9LIBBPF_LICENSE = GPL-2.0, LGPL-2.1, BSD-2-Clause 10LIBBPF_LICENSE_FILES = LICENSE LICENSE.BSD-2-Clause LICENSE.LGPL-2.1 11LIBBPF_DEPENDENCIES = host-bison host-flex host-pkgconf elfutils zlib 12LIBBPF_INSTALL_STAGING = YES 13 14define LIBBPF_BUILD_CMDS 15 $(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) \ 16 -C $(@D)/src 17endef 18 19# bpf/bpf.h installed by libbpf uses bpf_iter_link_info that was added since 20# kernel 5.9, so we need to update some uapi headers in STAGING_DIR if the 21# toolchain is build with linux-headers < 5.9. 22# Otherwise bpf/bpf.h is broken due to out of date linux/bpf.h installed by the 23# toolchain. 24# https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a5cbe05a6673b85bed2a63ffcfea6a96c6410cff 25ifeq ($(BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_9),) 26LIBBPF_UPDATE_UAPI_HEADERS = install_uapi_headers 27endif 28 29define LIBBPF_INSTALL_STAGING_CMDS 30 $(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) \ 31 -C $(@D)/src install $(LIBBPF_UPDATE_UAPI_HEADERS) \ 32 DESTDIR=$(STAGING_DIR) 33endef 34 35define LIBBPF_INSTALL_TARGET_CMDS 36 $(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) \ 37 -C $(@D)/src install DESTDIR=$(TARGET_DIR) 38endef 39 40$(eval $(generic-package)) 41