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246 lines
6.6 KiB
246 lines
6.6 KiB
# SPDX-License-Identifier: GPL-2.0-only |
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include ../../scripts/Makefile.include |
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include ../../scripts/utilities.mak |
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ifeq ($(srctree),) |
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srctree := $(patsubst %/,%,$(dir $(CURDIR))) |
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srctree := $(patsubst %/,%,$(dir $(srctree))) |
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srctree := $(patsubst %/,%,$(dir $(srctree))) |
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endif |
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ifeq ($(V),1) |
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Q = |
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else |
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Q = @ |
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endif |
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BPF_DIR = $(srctree)/tools/lib/bpf/ |
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ifneq ($(OUTPUT),) |
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LIBBPF_OUTPUT = $(OUTPUT)/libbpf/ |
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LIBBPF_PATH = $(LIBBPF_OUTPUT) |
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BOOTSTRAP_OUTPUT = $(OUTPUT)/bootstrap/ |
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else |
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LIBBPF_OUTPUT = |
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LIBBPF_PATH = $(BPF_DIR) |
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BOOTSTRAP_OUTPUT = $(CURDIR)/bootstrap/ |
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endif |
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LIBBPF = $(LIBBPF_PATH)libbpf.a |
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LIBBPF_BOOTSTRAP_OUTPUT = $(BOOTSTRAP_OUTPUT)libbpf/ |
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LIBBPF_BOOTSTRAP = $(LIBBPF_BOOTSTRAP_OUTPUT)libbpf.a |
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ifeq ($(BPFTOOL_VERSION),) |
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BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion) |
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endif |
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$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT): |
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$(QUIET_MKDIR)mkdir -p $@ |
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$(LIBBPF): FORCE | $(LIBBPF_OUTPUT) |
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$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) $(LIBBPF_OUTPUT)libbpf.a |
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$(LIBBPF_BOOTSTRAP): FORCE | $(LIBBPF_BOOTSTRAP_OUTPUT) |
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$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_BOOTSTRAP_OUTPUT) \ |
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ARCH= CC=$(HOSTCC) LD=$(HOSTLD) $@ |
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$(LIBBPF)-clean: FORCE | $(LIBBPF_OUTPUT) |
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$(call QUIET_CLEAN, libbpf) |
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$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) clean >/dev/null |
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$(LIBBPF_BOOTSTRAP)-clean: FORCE | $(LIBBPF_BOOTSTRAP_OUTPUT) |
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$(call QUIET_CLEAN, libbpf-bootstrap) |
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$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_BOOTSTRAP_OUTPUT) clean >/dev/null |
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prefix ?= /usr/local |
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bash_compdir ?= /usr/share/bash-completion/completions |
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CFLAGS += -O2 |
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CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers |
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CFLAGS += $(filter-out -Wswitch-enum -Wnested-externs,$(EXTRA_WARNINGS)) |
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CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \ |
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-I$(if $(OUTPUT),$(OUTPUT),.) \ |
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-I$(srctree)/kernel/bpf/ \ |
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-I$(srctree)/tools/include \ |
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-I$(srctree)/tools/include/uapi \ |
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-I$(srctree)/tools/lib \ |
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-I$(srctree)/tools/perf |
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CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"' |
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ifneq ($(EXTRA_CFLAGS),) |
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CFLAGS += $(EXTRA_CFLAGS) |
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endif |
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ifneq ($(EXTRA_LDFLAGS),) |
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LDFLAGS += $(EXTRA_LDFLAGS) |
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endif |
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INSTALL ?= install |
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RM ?= rm -f |
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FEATURE_USER = .bpftool |
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FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib libcap \ |
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clang-bpf-co-re |
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FEATURE_DISPLAY = libbfd disassembler-four-args zlib libcap \ |
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clang-bpf-co-re |
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check_feat := 1 |
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NON_CHECK_FEAT_TARGETS := clean uninstall doc doc-clean doc-install doc-uninstall |
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ifdef MAKECMDGOALS |
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ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),) |
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check_feat := 0 |
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endif |
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endif |
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ifeq ($(check_feat),1) |
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ifeq ($(FEATURES_DUMP),) |
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include $(srctree)/tools/build/Makefile.feature |
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else |
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include $(FEATURES_DUMP) |
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endif |
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endif |
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ifeq ($(feature-disassembler-four-args), 1) |
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CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE |
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endif |
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ifeq ($(feature-reallocarray), 0) |
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CFLAGS += -DCOMPAT_NEED_REALLOCARRAY |
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endif |
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LIBS = $(LIBBPF) -lelf -lz |
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LIBS_BOOTSTRAP = $(LIBBPF_BOOTSTRAP) -lelf -lz |
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ifeq ($(feature-libcap), 1) |
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CFLAGS += -DUSE_LIBCAP |
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LIBS += -lcap |
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endif |
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include $(wildcard $(OUTPUT)*.d) |
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all: $(OUTPUT)bpftool |
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BFD_SRCS = jit_disasm.c |
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SRCS = $(filter-out $(BFD_SRCS),$(wildcard *.c)) |
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ifeq ($(feature-libbfd),1) |
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LIBS += -lbfd -ldl -lopcodes |
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else ifeq ($(feature-libbfd-liberty),1) |
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LIBS += -lbfd -ldl -lopcodes -liberty |
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else ifeq ($(feature-libbfd-liberty-z),1) |
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LIBS += -lbfd -ldl -lopcodes -liberty -lz |
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endif |
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ifneq ($(filter -lbfd,$(LIBS)),) |
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CFLAGS += -DHAVE_LIBBFD_SUPPORT |
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SRCS += $(BFD_SRCS) |
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endif |
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BPFTOOL_BOOTSTRAP := $(BOOTSTRAP_OUTPUT)bpftool |
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BOOTSTRAP_OBJS = $(addprefix $(BOOTSTRAP_OUTPUT),main.o common.o json_writer.o gen.o btf.o) |
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OBJS = $(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o |
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VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ |
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$(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux) \ |
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../../../vmlinux \ |
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/sys/kernel/btf/vmlinux \ |
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/boot/vmlinux-$(shell uname -r) |
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VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) |
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bootstrap: $(BPFTOOL_BOOTSTRAP) |
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ifneq ($(VMLINUX_BTF)$(VMLINUX_H),) |
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ifeq ($(feature-clang-bpf-co-re),1) |
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BUILD_BPF_SKELS := 1 |
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$(OUTPUT)vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL_BOOTSTRAP) |
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ifeq ($(VMLINUX_H),) |
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$(QUIET_GEN)$(BPFTOOL_BOOTSTRAP) btf dump file $< format c > $@ |
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else |
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$(Q)cp "$(VMLINUX_H)" $@ |
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endif |
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$(OUTPUT)%.bpf.o: skeleton/%.bpf.c $(OUTPUT)vmlinux.h $(LIBBPF) |
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$(QUIET_CLANG)$(CLANG) \ |
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-I$(if $(OUTPUT),$(OUTPUT),.) \ |
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-I$(srctree)/tools/include/uapi/ \ |
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-I$(LIBBPF_PATH) \ |
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-I$(srctree)/tools/lib \ |
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-g -O2 -Wall -target bpf -c $< -o $@ && $(LLVM_STRIP) -g $@ |
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$(OUTPUT)%.skel.h: $(OUTPUT)%.bpf.o $(BPFTOOL_BOOTSTRAP) |
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$(QUIET_GEN)$(BPFTOOL_BOOTSTRAP) gen skeleton $< > $@ |
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$(OUTPUT)prog.o: $(OUTPUT)profiler.skel.h |
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$(OUTPUT)pids.o: $(OUTPUT)pid_iter.skel.h |
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endif |
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endif |
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CFLAGS += $(if $(BUILD_BPF_SKELS),,-DBPFTOOL_WITHOUT_SKELETONS) |
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$(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c |
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$(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $< |
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$(OUTPUT)feature.o: | zdep |
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$(BPFTOOL_BOOTSTRAP): $(BOOTSTRAP_OBJS) $(LIBBPF_BOOTSTRAP) |
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$(QUIET_LINK)$(HOSTCC) $(CFLAGS) $(LDFLAGS) -o $@ $(BOOTSTRAP_OBJS) \ |
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$(LIBS_BOOTSTRAP) |
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$(OUTPUT)bpftool: $(OBJS) $(LIBBPF) |
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$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJS) $(LIBS) |
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$(BOOTSTRAP_OUTPUT)%.o: %.c | $(BOOTSTRAP_OUTPUT) |
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$(QUIET_CC)$(HOSTCC) $(CFLAGS) -c -MMD -o $@ $< |
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$(OUTPUT)%.o: %.c |
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$(QUIET_CC)$(CC) $(CFLAGS) -c -MMD -o $@ $< |
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feature-detect-clean: |
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$(call QUIET_CLEAN, feature-detect) |
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$(Q)$(MAKE) -C $(srctree)/tools/build/feature/ clean >/dev/null |
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clean: $(LIBBPF)-clean $(LIBBPF_BOOTSTRAP)-clean feature-detect-clean |
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$(call QUIET_CLEAN, bpftool) |
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$(Q)$(RM) -- $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d |
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$(Q)$(RM) -- $(OUTPUT)*.skel.h $(OUTPUT)vmlinux.h |
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$(Q)$(RM) -r -- $(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) |
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$(call QUIET_CLEAN, core-gen) |
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$(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpftool |
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$(Q)$(RM) -r -- $(OUTPUT)feature/ |
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install: $(OUTPUT)bpftool |
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$(call QUIET_INSTALL, bpftool) |
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$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/sbin |
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$(Q)$(INSTALL) $(OUTPUT)bpftool $(DESTDIR)$(prefix)/sbin/bpftool |
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$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(bash_compdir) |
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$(Q)$(INSTALL) -m 0644 bash-completion/bpftool $(DESTDIR)$(bash_compdir) |
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uninstall: |
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$(call QUIET_UNINST, bpftool) |
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$(Q)$(RM) -- $(DESTDIR)$(prefix)/sbin/bpftool |
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$(Q)$(RM) -- $(DESTDIR)$(bash_compdir)/bpftool |
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doc: |
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$(call descend,Documentation) |
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doc-clean: |
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$(call descend,Documentation,clean) |
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doc-install: |
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$(call descend,Documentation,install) |
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doc-uninstall: |
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$(call descend,Documentation,uninstall) |
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FORCE: |
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zdep: |
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@if [ "$(feature-zlib)" != "1" ]; then echo "No zlib found"; exit 1 ; fi |
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.SECONDARY: |
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.PHONY: all FORCE clean install uninstall zdep |
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.PHONY: doc doc-clean doc-install doc-uninstall |
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.DEFAULT_GOAL := all
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