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268 lines
8.0 KiB
268 lines
8.0 KiB
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
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include ../../scripts/Makefile.include |
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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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_OUTPUT := $(OUTPUT) |
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else |
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_OUTPUT := $(CURDIR)/ |
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endif |
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BOOTSTRAP_OUTPUT := $(_OUTPUT)bootstrap/ |
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LIBBPF_OUTPUT := $(_OUTPUT)libbpf/ |
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LIBBPF_DESTDIR := $(LIBBPF_OUTPUT) |
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LIBBPF_INCLUDE := $(LIBBPF_DESTDIR)include |
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LIBBPF_HDRS_DIR := $(LIBBPF_INCLUDE)/bpf |
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LIBBPF := $(LIBBPF_OUTPUT)libbpf.a |
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LIBBPF_BOOTSTRAP_OUTPUT := $(BOOTSTRAP_OUTPUT)libbpf/ |
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LIBBPF_BOOTSTRAP_DESTDIR := $(LIBBPF_BOOTSTRAP_OUTPUT) |
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LIBBPF_BOOTSTRAP_INCLUDE := $(LIBBPF_BOOTSTRAP_DESTDIR)include |
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LIBBPF_BOOTSTRAP_HDRS_DIR := $(LIBBPF_BOOTSTRAP_INCLUDE)/bpf |
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LIBBPF_BOOTSTRAP := $(LIBBPF_BOOTSTRAP_OUTPUT)libbpf.a |
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# We need to copy hashmap.h, nlattr.h, relo_core.h and libbpf_internal.h |
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# which are not otherwise exported by libbpf, but still required by bpftool. |
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LIBBPF_INTERNAL_HDRS := $(addprefix $(LIBBPF_HDRS_DIR)/,hashmap.h nlattr.h relo_core.h libbpf_internal.h) |
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LIBBPF_BOOTSTRAP_INTERNAL_HDRS := $(addprefix $(LIBBPF_BOOTSTRAP_HDRS_DIR)/,hashmap.h relo_core.h libbpf_internal.h) |
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$(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT) $(LIBBPF_HDRS_DIR) $(LIBBPF_BOOTSTRAP_HDRS_DIR): |
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$(QUIET_MKDIR)mkdir -p $@ |
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$(LIBBPF): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_OUTPUT) |
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$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) \ |
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DESTDIR=$(LIBBPF_DESTDIR:/=) prefix= $(LIBBPF) install_headers |
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$(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_HDRS_DIR) |
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$(call QUIET_INSTALL, $@) |
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$(Q)install -m 644 -t $(LIBBPF_HDRS_DIR) $< |
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$(LIBBPF_BOOTSTRAP): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_BOOTSTRAP_OUTPUT) |
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$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_BOOTSTRAP_OUTPUT) \ |
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DESTDIR=$(LIBBPF_BOOTSTRAP_DESTDIR:/=) prefix= \ |
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ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) $@ install_headers |
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$(LIBBPF_BOOTSTRAP_INTERNAL_HDRS): $(LIBBPF_BOOTSTRAP_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_BOOTSTRAP_HDRS_DIR) |
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$(call QUIET_INSTALL, $@) |
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$(Q)install -m 644 -t $(LIBBPF_BOOTSTRAP_HDRS_DIR) $< |
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$(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$(or $(OUTPUT),.) \ |
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-I$(LIBBPF_INCLUDE) \ |
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-I$(srctree)/kernel/bpf/ \ |
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-I$(srctree)/tools/include \ |
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-I$(srctree)/tools/include/uapi |
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ifneq ($(BPFTOOL_VERSION),) |
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CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"' |
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endif |
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ifneq ($(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 += $(EXTRA_LDFLAGS) |
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endif |
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INSTALL ?= install |
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RM ?= rm -f |
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FEATURE_USER = .bpftool |
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FEATURE_TESTS = libbfd disassembler-four-args zlib libcap \ |
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clang-bpf-co-re |
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FEATURE_DISPLAY = libbfd disassembler-four-args zlib libcap \ |
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clang-bpf-co-re |
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check_feat := 1 |
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NON_CHECK_FEAT_TARGETS := clean uninstall doc doc-clean doc-install doc-uninstall |
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ifdef MAKECMDGOALS |
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ifeq ($(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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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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HOST_CFLAGS = $(subst -I$(LIBBPF_INCLUDE),-I$(LIBBPF_BOOTSTRAP_INCLUDE),\ |
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$(subst $(CLANG_CROSS_FLAGS),,$(CFLAGS))) |
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BPFTOOL_BOOTSTRAP := $(BOOTSTRAP_OUTPUT)bpftool |
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BOOTSTRAP_OBJS = $(addprefix $(BOOTSTRAP_OUTPUT),main.o common.o json_writer.o gen.o btf.o xlated_dumper.o btf_dumper.o disasm.o) |
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$(BOOTSTRAP_OBJS): $(LIBBPF_BOOTSTRAP) |
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OBJS = $(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o |
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$(OBJS): $(LIBBPF) $(LIBBPF_INTERNAL_HDRS) |
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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 $(LIBBPF_BOOTSTRAP) |
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$(QUIET_CLANG)$(CLANG) \ |
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-I$(or $(OUTPUT),.) \ |
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-I$(srctree)/tools/include/uapi/ \ |
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-I$(LIBBPF_BOOTSTRAP_INCLUDE) \ |
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-g -O2 -Wall -target bpf -c $< -o $@ |
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$(Q)$(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 $(BUILD_BPF_SKELS),,-DBPFTOOL_WITHOUT_SKELETONS) |
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$(BOOTSTRAP_OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c |
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$(QUIET_CC)$(HOSTCC) $(HOST_CFLAGS) -c -MMD $< -o $@ |
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$(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: |
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ifneq ($(feature-zlib), 1) |
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$(error "No zlib found") |
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endif |
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$(BPFTOOL_BOOTSTRAP): $(BOOTSTRAP_OBJS) $(LIBBPF_BOOTSTRAP) |
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$(QUIET_LINK)$(HOSTCC) $(HOST_CFLAGS) $(LDFLAGS) $(BOOTSTRAP_OBJS) $(LIBS_BOOTSTRAP) -o $@ |
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$(OUTPUT)bpftool: $(OBJS) $(LIBBPF) |
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$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) $(LIBS) -o $@ |
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$(BOOTSTRAP_OUTPUT)%.o: %.c $(LIBBPF_BOOTSTRAP_INTERNAL_HDRS) | $(BOOTSTRAP_OUTPUT) |
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$(QUIET_CC)$(HOSTCC) $(HOST_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-bin: $(OUTPUT)bpftool |
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$(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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install: install-bin |
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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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.SECONDARY: |
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.PHONY: all FORCE bootstrap clean install-bin install uninstall |
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.PHONY: doc doc-clean doc-install doc-uninstall |
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.DEFAULT_GOAL := all
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