43b4017ba7
Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
66 lines
2.5 KiB
Makefile
66 lines
2.5 KiB
Makefile
################################################################################
|
|
#
|
|
# libbpf
|
|
#
|
|
################################################################################
|
|
|
|
LIBBPF_VERSION = 0.7.0
|
|
LIBBPF_SITE = $(call github,libbpf,libbpf,v$(LIBBPF_VERSION))
|
|
LIBBPF_LICENSE = GPL-2.0, LGPL-2.1, BSD-2-Clause
|
|
LIBBPF_LICENSE_FILES = LICENSE LICENSE.BSD-2-Clause LICENSE.LGPL-2.1
|
|
LIBBPF_CPE_ID_VENDOR = libbpf_project
|
|
LIBBPF_DEPENDENCIES = host-bison host-flex host-pkgconf elfutils zlib
|
|
HOST_LIBBPF_DEPENDENCIES = host-bison host-flex host-pkgconf host-elfutils host-zlib
|
|
LIBBPF_INSTALL_STAGING = YES
|
|
|
|
define LIBBPF_BUILD_CMDS
|
|
$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) \
|
|
-C $(@D)/src
|
|
endef
|
|
|
|
# bpf/bpf.h installed by libbpf uses bpf_iter_link_info that was added since
|
|
# kernel 5.9, so we need to update some uapi headers in STAGING_DIR if the
|
|
# toolchain is build with linux-headers < 5.9.
|
|
# Otherwise bpf/bpf.h is broken due to out of date linux/bpf.h installed by the
|
|
# toolchain.
|
|
# https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a5cbe05a6673b85bed2a63ffcfea6a96c6410cff
|
|
ifeq ($(BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_9),)
|
|
LIBBPF_UPDATE_UAPI_HEADERS = install_uapi_headers
|
|
endif
|
|
|
|
define LIBBPF_INSTALL_STAGING_CMDS
|
|
$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) \
|
|
-C $(@D)/src install $(LIBBPF_UPDATE_UAPI_HEADERS) \
|
|
DESTDIR=$(STAGING_DIR)
|
|
endef
|
|
|
|
define LIBBPF_INSTALL_TARGET_CMDS
|
|
$(TARGET_MAKE_ENV) $(TARGET_CONFIGURE_OPTS) $(MAKE) \
|
|
-C $(@D)/src install DESTDIR=$(TARGET_DIR)
|
|
endef
|
|
|
|
# We need to install_uapi_headers so we have btf.h to compile
|
|
# host-pahole.
|
|
# Nonetheless, this target adds bpf.h which generates a conflict when
|
|
# building the kernel:
|
|
# In file included from libbpf_internal.h:17:0, from strset.c:9:
|
|
# relo_core.h:10:6: error: nested redefinition of 'enum bpf_core_relo_kind'
|
|
# enum bpf_core_relo_kind {
|
|
# ^~~~~~~~~~~~~~~~~~
|
|
# relo_core.h:10:6: error: redeclaration of 'enum bpf_core_relo_kind'
|
|
# In file included from libbpf_legacy.h:13:0,
|
|
# from libbpf_internal.h:16,
|
|
# from strset.c:9:
|
|
# /home/francis/buildroot/output/host/include/linux/bpf.h:6497:6: note: originally defined here
|
|
# enum bpf_core_relo_kind {
|
|
# So, better to remove remove it now since we do not need it to build
|
|
# host-pahole, the only user of host-libbpf.
|
|
define HOST_LIBBPF_INSTALL_CMDS
|
|
$(HOST_MAKE_ENV) $(HOST_CONFIGURE_OPTS) $(MAKE) \
|
|
-C $(@D)/src install install_uapi_headers DESTDIR=$(HOST_DIR)
|
|
rm $(HOST_DIR)/include/linux/bpf.h
|
|
endef
|
|
|
|
$(eval $(generic-package))
|
|
$(eval $(host-generic-package))
|