xref: /linux/tools/bpf/runqslower/Makefile (revision df02351331671abb26788bc13f6d276e26ae068f) 
19c01546dSAndrii Nakryiko# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
23290996eSJean-Philippe Bruckerinclude ../../scripts/Makefile.include
33290996eSJean-Philippe Brucker
485e59344SJean-Philippe BruckerOUTPUT ?= $(abspath .output)/
585e59344SJean-Philippe Brucker
685e59344SJean-Philippe BruckerBPFTOOL_OUTPUT := $(OUTPUT)bpftool/
73a2a58c4SPu LehuiDEFAULT_BPFTOOL := $(BPFTOOL_OUTPUT)bootstrap/bpftool
89c01546dSAndrii NakryikoBPFTOOL ?= $(DEFAULT_BPFTOOL)
99c01546dSAndrii NakryikoBPF_TARGET_ENDIAN ?= --target=bpf
1085e59344SJean-Philippe BruckerLIBBPF_SRC := $(abspath ../../lib/bpf)
1185e59344SJean-Philippe BruckerBPFOBJ_OUTPUT := $(OUTPUT)libbpf/
12be79505cSQuentin MonnetBPFOBJ := $(BPFOBJ_OUTPUT)libbpf.a
13be79505cSQuentin MonnetBPF_DESTDIR := $(BPFOBJ_OUTPUT)
14be79505cSQuentin MonnetBPF_INCLUDE := $(BPF_DESTDIR)/include
15bb7b75e8SJean-Philippe BruckerINCLUDES := -I$(OUTPUT) -I$(BPF_INCLUDE) -I$(abspath ../../include/uapi)
16585bf464SIlya LeoshkevichCFLAGS := -g -Wall $(CLANG_CROSS_FLAGS)
17585bf464SIlya LeoshkevichCFLAGS += $(EXTRA_CFLAGS)
18f86601c3STony AmbardarLDFLAGS += $(EXTRA_LDFLAGS)
199c01546dSAndrii NakryikoLDLIBS += -lelf -lz
209c01546dSAndrii Nakryiko
219c01546dSAndrii Nakryiko# Try to detect best kernel BTF source
224b0d2d41SSong LiuKERNEL_REL := $(shell uname -r)
234b0d2d41SSong LiuVMLINUX_BTF_PATHS := $(if $(O),$(O)/vmlinux)		\
244b0d2d41SSong Liu	$(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \
254b0d2d41SSong Liu	../../../vmlinux /sys/kernel/btf/vmlinux	\
26a835d38dSToke Høiland-Jørgensen	/boot/vmlinux-$(KERNEL_REL)
27a835d38dSToke Høiland-JørgensenVMLINUX_BTF_PATH := $(or $(VMLINUX_BTF),$(firstword			       \
289c01546dSAndrii Nakryiko					  $(wildcard $(VMLINUX_BTF_PATHS))))
29*42367ecaSCharlie Jenkins
309c01546dSAndrii Nakryikoifneq ($(V),1)
319c01546dSAndrii NakryikoMAKEFLAGS += --no-print-directory
329c01546dSAndrii Nakryikosubmake_extras := feature_display=0
339c01546dSAndrii Nakryikoendif
349c01546dSAndrii Nakryiko
359c01546dSAndrii Nakryiko.DELETE_ON_ERROR:
36be79505cSQuentin Monnet
379c01546dSAndrii Nakryiko.PHONY: all clean runqslower libbpf_hdrs
389c01546dSAndrii Nakryikoall: runqslower
399c01546dSAndrii Nakryiko
409c01546dSAndrii Nakryikorunqslower: $(OUTPUT)/runqslower
419c01546dSAndrii Nakryiko
423290996eSJean-Philippe Bruckerclean:
4385e59344SJean-Philippe Brucker	$(call QUIET_CLEAN, runqslower)
4485e59344SJean-Philippe Brucker	$(Q)$(RM) -r $(BPFOBJ_OUTPUT) $(BPFTOOL_OUTPUT)
4585e59344SJean-Philippe Brucker	$(Q)$(RM) $(OUTPUT)*.o $(OUTPUT)*.d
4685e59344SJean-Philippe Brucker	$(Q)$(RM) $(OUTPUT)*.skel.h $(OUTPUT)vmlinux.h
4785e59344SJean-Philippe Brucker	$(Q)$(RM) $(OUTPUT)runqslower
489c01546dSAndrii Nakryiko	$(Q)$(RM) -r .output
49be79505cSQuentin Monnet
50be79505cSQuentin Monnetlibbpf_hdrs: $(BPFOBJ)
51b6580cd8SToke Høiland-Jørgensen
52f86601c3STony Ambardar$(OUTPUT)/runqslower: $(OUTPUT)/runqslower.o $(BPFOBJ)
539c01546dSAndrii Nakryiko	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
549c01546dSAndrii Nakryiko
55be79505cSQuentin Monnet$(OUTPUT)/runqslower.o: runqslower.h $(OUTPUT)/runqslower.skel.h	      \
569c01546dSAndrii Nakryiko			$(OUTPUT)/runqslower.bpf.o | libbpf_hdrs
57be79505cSQuentin Monnet
589c01546dSAndrii Nakryiko$(OUTPUT)/runqslower.bpf.o: $(OUTPUT)/vmlinux.h runqslower.h | libbpf_hdrs
599c01546dSAndrii Nakryiko
603290996eSJean-Philippe Brucker$(OUTPUT)/%.skel.h: $(OUTPUT)/%.bpf.o | $(BPFTOOL)
619c01546dSAndrii Nakryiko	$(QUIET_GEN)$(BPFTOOL) gen skeleton $< > $@
62b6580cd8SToke Høiland-Jørgensen
63bbaf1ff0SFangrui Song$(OUTPUT)/%.bpf.o: %.bpf.c $(BPFOBJ) | $(OUTPUT)
649c01546dSAndrii Nakryiko	$(QUIET_GEN)$(CLANG) -g -O2 $(BPF_TARGET_ENDIAN) $(INCLUDES)	      \
659c01546dSAndrii Nakryiko		 -c $(filter %.c,$^) -o $@ &&				      \
669c01546dSAndrii Nakryiko	$(LLVM_STRIP) -g $@
679c01546dSAndrii Nakryiko
683290996eSJean-Philippe Brucker$(OUTPUT)/%.o: %.c | $(OUTPUT)
699c01546dSAndrii Nakryiko	$(QUIET_CC)$(CC) $(CFLAGS) $(INCLUDES) -c $(filter %.c,$^) -o $@
7085e59344SJean-Philippe Brucker
7185e59344SJean-Philippe Brucker$(OUTPUT) $(BPFOBJ_OUTPUT) $(BPFTOOL_OUTPUT):
729c01546dSAndrii Nakryiko	$(QUIET_MKDIR)mkdir -p $@
73a835d38dSToke Høiland-Jørgensen
74303dcc25SAndrii Nakryiko$(OUTPUT)/vmlinux.h: $(VMLINUX_BTF_PATH) | $(OUTPUT) $(BPFTOOL)
75a835d38dSToke Høiland-Jørgensenifeq ($(VMLINUX_H),)
76a835d38dSToke Høiland-Jørgensen	$(Q)if [ ! -e "$(VMLINUX_BTF_PATH)" ] ; then \
77a835d38dSToke Høiland-Jørgensen		echo "Couldn't find kernel BTF; set VMLINUX_BTF to"	       \
78a835d38dSToke Høiland-Jørgensen			"specify its location." >&2;			       \
79a835d38dSToke Høiland-Jørgensen		exit 1;\
803290996eSJean-Philippe Brucker	fi
81303dcc25SAndrii Nakryiko	$(QUIET_GEN)$(BPFTOOL) btf dump file $(VMLINUX_BTF_PATH) format c > $@
82303dcc25SAndrii Nakryikoelse
83303dcc25SAndrii Nakryiko	$(Q)cp "$(VMLINUX_H)" $@
849c01546dSAndrii Nakryikoendif
8585e59344SJean-Philippe Brucker
86be79505cSQuentin Monnet$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(BPFOBJ_OUTPUT)
87be79505cSQuentin Monnet	$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(BPFOBJ_OUTPUT) \
889c01546dSAndrii Nakryiko		    DESTDIR=$(BPFOBJ_OUTPUT) prefix= $(abspath $@) install_headers
893a2a58c4SPu Lehui
903a2a58c4SPu Lehui$(DEFAULT_BPFTOOL): | $(BPFTOOL_OUTPUT)
91	$(Q)$(MAKE) $(submake_extras) -C ../bpftool OUTPUT=$(BPFTOOL_OUTPUT) bootstrap
92