0
     1ˆÆÒƒÏ¿ÂÏ S    1# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
include ../../scripts/Makefile.include

OUTPUT ?= $(abspath .output)/

BPFTOOL_OUTPUT := $(OUTPUT)bpftool/
DEFAULT_BPFTOOL := $(BPFTOOL_OUTPUT)bootstrap/bpftool
BPFTOOL ?= $(DEFAULT_BPFTOOL)
LIBBPF_SRC := $(abspath ../../lib/bpf)
BPFOBJ_OUTPUT := $(OUTPUT)libbpf/
BPFOBJ := $(BPFOBJ_OUTPUT)libbpf.a
BPF_DESTDIR := $(BPFOBJ_OUTPUT)
BPF_INCLUDE := $(BPF_DESTDIR)/include
INCLUDES := -I$(OUTPUT) -I$(BPF_INCLUDE) -I$(abspath ../../include/uapi)
CFLAGS := -g -Wall $(CLANG_CROSS_FLAGS)
CFLAGS += $(EXTRA_CFLAGS)
LDFLAGS += $(EXTRA_LDFLAGS)
LDLIBS += -lelf -lz

# Try to detect best kernel BTF source
KERNEL_REL := $(shell uname -r)
VMLINUX_BTF_PATHS := $(if $(O),$(O)/vmlinux)		\
	$(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \
	../../../vmlinux /sys/kernel/btf/vmlinux	\
	/boot/vmlinux-$(KERNEL_REL)
VMLINUX_BTF_PATH := $(or $(VMLINUX_BTF),$(firstword			       \
					  $(wildcard $(VMLINUX_BTF_PATHS))))

ifeq ($(V),1)
Q =
else
Q = @
MAKEFLAGS += --no-print-directory
submake_extras := feature_display=0
endif

.DELETE_ON_ERROR:

.PHONY: all clean runqslower libbpf_hdrs
all: runqslower

runqslower: $(OUTPUT)/runqslower

clean:
	$(call QUIET_CLEAN, runqslower)
	$(Q)$(RM) -r $(BPFOBJ_OUTPUT) $(BPFTOOL_OUTPUT)
	$(Q)$(RM) $(OUTPUT)*.o $(OUTPUT)*.d
	$(Q)$(RM) $(OUTPUT)*.skel.h $(OUTPUT)vmlinux.h
	$(Q)$(RM) $(OUTPUT)runqslower
	$(Q)$(RM) -r .output

libbpf_hdrs: $(BPFOBJ)

$(OUTPUT)/runqslower: $(OUTPUT)/runqslower.o $(BPFOBJ)
	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@

$(OUTPUT)/runqslower.o: runqslower.h $(OUTPUT)/runqslower.skel.h	      \
			$(OUTPUT)/runqslower.bpf.o | libbpf_hdrs

$(OUTPUT)/runqslower.bpf.o: $(OUTPUT)/vmlinux.h runqslower.h | libbpf_hdrs

$(OUTPUT)/%.skel.h: $(OUTPUT)/%.bpf.o | $(BPFTOOL)
	$(QUIET_GEN)$(BPFTOOL) gen skeleton $< > $@

$(OUTPUT)/%.bpf.o: %.bpf.c $(BPFOBJ) | $(OUTPUT)
	$(QUIET_GEN)$(CLANG) -g -O2 --target=bpf $(INCLUDES)		      \
		 -c $(filter %.c,$^) -o $@ &&				      \
	$(LLVM_STRIP) -g $@

$(OUTPUT)/%.o: %.c | $(OUTPUT)
	$(QUIET_CC)$(CC) $(CFLAGS) $(INCLUDES) -c $(filter %.c,$^) -o $@

$(OUTPUT) $(BPFOBJ_OUTPUT) $(BPFTOOL_OUTPUT):
	$(QUIET_MKDIR)mkdir -p $@

$(OUTPUT)/vmlinux.h: $(VMLINUX_BTF_PATH) | $(OUTPUT) $(BPFTOOL)
ifeq ($(VMLINUX_H),)
	$(Q)if [ ! -e "$(VMLINUX_BTF_PATH)" ] ; then \
		echo "Couldn't find kernel BTF; set VMLINUX_BTF to"	       \
			"specify its location." >&2;			       \
		exit 1;\
	fi
	$(QUIET_GEN)$(BPFTOOL) btf dump file $(VMLINUX_BTF_PATH) format c > $@
else
	$(Q)cp "$(VMLINUX_H)" $@
endif

$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(BPFOBJ_OUTPUT)
	$(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(BPFOBJ_OUTPUT) \
		    DESTDIR=$(BPFOBJ_OUTPUT) prefix= $(abspath $@) install_headers

$(DEFAULT_BPFTOOL): | $(BPFTOOL_OUTPUT)
	$(Q)$(MAKE) $(submake_extras) -C ../bpftool OUTPUT=$(BPFTOOL_OUTPUT) bootstrap
  "   3ˆl–Ým_J*j"Tâ‚fãMÜÊbÑ¿Óƒh¹ÃÐ      31
     5ˆÏÓƒ­µÎÃÐ Ú    5‹     ­WmoGþÎ¯˜Ò4µ9q¤–«.¶c¤&  /•Nj–»=¸æÞ²»‡šþ÷>³wÀá¸í—X"agfŸ÷\¯I—…Éa"_Äñ–V2•JÐrKÓ,^‹”ÎÝÞ9µìq%y,é™{Þo7\¯Éš‘B”+)’e,–<üF74Ï	ï¤²ª’Î…/©u·–)ÝIòEê*´$w:…bQH†\“û|cO)Ÿ®k±Þ-ëW¹ŠRÚHµ„ù	yonhhô¾á¦!>’<ïIoIò¥ë4xäÊÿFV½!¡IN:K ×Z(á©È(‘ê×²TÜÅ¾
d¥ðµ6*JWÚ%ò~lu:tÅ±…ZE	a*Ò%<ûIÀµ½>eÁéØ
–Bydi¿5k4A±
²‚ï~.2#Oíóž«hµ6G’¥B£“‡
Qù0itr‰‘È#ƒˆÀÜ• Hs2¾Ò[ZÓ-’YK%ÃLIºË8vKànD³lõîÇ¢#‡ä}ÎÀ~taKU†§)ÍÌîcª±T¬Í…»È¬iôòq1Š¼Öï;¥†â4ò6NÇímoítz¹ãéNÿ¤ú~âé.Ø5.RH"…¼¿¼t#ÂTV„#Êò­å¥-÷vx^´Ÿ¶zÉ°/ä®YÜ~áÔ¿w8NìÏ¨×–ñ×ÿ
×ýo¸ŸJ´=\¿‡kH“fsšàöúÉá“³TÞßWÆ=ðÅkÉÄûRwtÈë}üXÈqjÕ^Ù=Qu”kí‹\’F\wÉ¨9Àq„Zâò/+†B•%´â¨;šÞ"-3Tª-5ä@âÚ¸±ëVÖ[—Ÿ¡øÌ†PùWQýÃã3“nH¡;h.\dôE÷MÆáR©ú#t	ä=Éz@³,…FTŠS¯LïÈÄ`´ÜÅmû”ÖR€ËÇ9u±ÔÒ/[Hs`WÂ‡qÞ.ëÓ>`¡v$B}BeÙ¤þðò‚Ý1\Á…“ü¬P•½Í
Vs-P¦¨•\e¾ÔšM²PYaòÂ°¤ã!l›J¤HáÏ°ˆ)D™B1wï‘ËMáU¡X¢æpKÀ¡Äw]lï1çÆ)[æøƒí‰©"uC]Û‡«`àH§g9œâêf`3}5vÛíC½Ù‹7‡³M›w4	ÙeîÙžñ¼ôÏ4qè7­;9@}¬á°ÇPçÖóí†ú'éîþ(6á;öüø-8‡¨¹Úôƒëa0˜Æ˜Ï °¸¥Ç8Ôìwû½N÷§N÷gÔu.UL›çî³¾ÛÃñ­æ¾qF-óSæ_e~‘ ÃN§2ê7h¡e%S¨”8àÚD!Æ/‹Á	—ñØê½Í1Ž-÷	ûIj‹9¤cJº¥YÂÛ°¥¿Ní@*´»›×"