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