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# SPDX-License-Identifier: GPL-2.0-only
STOP_ERROR :=
LIBTRACEEVENT_MIN_VERSION = 1.5
LIBTRACEFS_MIN_VERSION = 1.6
define lib_setup
$(eval LIB_INCLUDES += $(shell sh -c "$(PKG_CONFIG) --cflags lib$(1)"))
$(eval LDFLAGS += $(shell sh -c "$(PKG_CONFIG) --libs-only-L lib$(1)"))
$(eval EXTLIBS += $(shell sh -c "$(PKG_CONFIG) --libs-only-l lib$(1)"))
endef
$(call feature_check,libtraceevent)
ifeq ($(feature-libtraceevent), 1)
$(call detected,CONFIG_LIBTRACEEVENT)
TEST = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 && echo y || echo n")
ifeq ($(TEST),n)
$(info libtraceevent version is too low, it must be at least $(LIBTRACEEVENT_MIN_VERSION))
STOP_ERROR := 1
endif
$(call lib_setup,traceevent)
else
STOP_ERROR := 1
$(info libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel)
endif
$(call feature_check,libtracefs)
ifeq ($(feature-libtracefs), 1)
$(call detected,CONFIG_LIBTRACEFS)
TEST = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 && echo y || echo n")
ifeq ($(TEST),n)
$(info libtracefs version is too low, it must be at least $(LIBTRACEFS_MIN_VERSION))
STOP_ERROR := 1
endif
$(call lib_setup,tracefs)
else
STOP_ERROR := 1
$(info libtracefs is missing. Please install libtracefs-dev/libtracefs-devel)
endif
$(call feature_check,libcpupower)
ifeq ($(feature-libcpupower), 1)
$(call detected,CONFIG_LIBCPUPOWER)
CFLAGS += -DHAVE_LIBCPUPOWER_SUPPORT
EXTLIBS += -lcpupower
else
$(info libcpupower is missing, building without --deepest-idle-state support.)
$(info Please install libcpupower-dev/kernel-tools-libs-devel)
endif
ifndef BUILD_BPF_SKEL
# BPF skeletons are used to implement improved sample collection, enable
# them by default.
BUILD_BPF_SKEL := 1
endif
ifeq ($(BUILD_BPF_SKEL),0)
$(info BPF skeleton support disabled, building without BPF skeleton support.)
endif
$(call feature_check,libbpf)
ifeq ($(feature-libbpf), 1)
$(call detected,CONFIG_LIBBPF)
else
$(info libbpf is missing, building without BPF skeleton support.)
$(info Please install libbpf-dev/libbpf-devel)
BUILD_BPF_SKEL := 0
endif
$(call feature_check,clang-bpf-co-re)
ifeq ($(feature-clang-bpf-co-re), 1)
$(call detected,CONFIG_CLANG_BPF_CO_RE)
else
$(info clang is missing or does not support BPF CO-RE, building without BPF skeleton support.)
$(info Please install clang)
BUILD_BPF_SKEL := 0
endif
$(call feature_check,bpftool-skeletons)
ifeq ($(feature-bpftool-skeletons), 1)
$(call detected,CONFIG_BPFTOOL_SKELETONS)
else
$(info bpftool is missing or not supporting skeletons, building without BPF skeleton support.)
$(info Please install bpftool)
BUILD_BPF_SKEL := 0
endif
ifeq ($(BUILD_BPF_SKEL),1)
CFLAGS += -DHAVE_BPF_SKEL
EXTLIBS += -lbpf
endif
ifeq ($(STOP_ERROR),1)
$(error Please, check the errors above.)
endif
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