| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| include ../../scripts/Makefile.include |
| |
| 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),) |
| _OUTPUT := $(OUTPUT) |
| else |
| _OUTPUT := $(CURDIR)/ |
| endif |
| BOOTSTRAP_OUTPUT := $(_OUTPUT)bootstrap/ |
| |
| LIBBPF_OUTPUT := $(_OUTPUT)libbpf/ |
| LIBBPF_DESTDIR := $(LIBBPF_OUTPUT) |
| LIBBPF_INCLUDE := $(LIBBPF_DESTDIR)include |
| LIBBPF_HDRS_DIR := $(LIBBPF_INCLUDE)/bpf |
| LIBBPF := $(LIBBPF_OUTPUT)libbpf.a |
| |
| LIBBPF_BOOTSTRAP_OUTPUT := $(BOOTSTRAP_OUTPUT)libbpf/ |
| LIBBPF_BOOTSTRAP_DESTDIR := $(LIBBPF_BOOTSTRAP_OUTPUT) |
| LIBBPF_BOOTSTRAP_INCLUDE := $(LIBBPF_BOOTSTRAP_DESTDIR)include |
| LIBBPF_BOOTSTRAP_HDRS_DIR := $(LIBBPF_BOOTSTRAP_INCLUDE)/bpf |
| LIBBPF_BOOTSTRAP := $(LIBBPF_BOOTSTRAP_OUTPUT)libbpf.a |
| |
| # We need to copy hashmap.h, nlattr.h, relo_core.h and libbpf_internal.h |
| # which are not otherwise exported by libbpf, but still required by bpftool. |
| LIBBPF_INTERNAL_HDRS := $(addprefix $(LIBBPF_HDRS_DIR)/,hashmap.h nlattr.h relo_core.h libbpf_internal.h) |
| LIBBPF_BOOTSTRAP_INTERNAL_HDRS := $(addprefix $(LIBBPF_BOOTSTRAP_HDRS_DIR)/,hashmap.h relo_core.h libbpf_internal.h) |
| |
| $(LIBBPF_OUTPUT) $(BOOTSTRAP_OUTPUT) $(LIBBPF_BOOTSTRAP_OUTPUT) $(LIBBPF_HDRS_DIR) $(LIBBPF_BOOTSTRAP_HDRS_DIR): |
| $(QUIET_MKDIR)mkdir -p $@ |
| |
| $(LIBBPF): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_OUTPUT) |
| $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) \ |
| DESTDIR=$(LIBBPF_DESTDIR:/=) prefix= $(LIBBPF) install_headers |
| |
| $(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_HDRS_DIR) |
| $(call QUIET_INSTALL, $@) |
| $(Q)install -m 644 -t $(LIBBPF_HDRS_DIR) $< |
| |
| $(LIBBPF_BOOTSTRAP): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_BOOTSTRAP_OUTPUT) |
| $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_BOOTSTRAP_OUTPUT) \ |
| DESTDIR=$(LIBBPF_BOOTSTRAP_DESTDIR:/=) prefix= \ |
| ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) $@ install_headers |
| |
| $(LIBBPF_BOOTSTRAP_INTERNAL_HDRS): $(LIBBPF_BOOTSTRAP_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_BOOTSTRAP_HDRS_DIR) |
| $(call QUIET_INSTALL, $@) |
| $(Q)install -m 644 -t $(LIBBPF_BOOTSTRAP_HDRS_DIR) $< |
| |
| $(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$(LIBBPF_INCLUDE) \ |
| -I$(srctree)/kernel/bpf/ \ |
| -I$(srctree)/tools/include \ |
| -I$(srctree)/tools/include/uapi |
| ifneq ($(BPFTOOL_VERSION),) |
| CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"' |
| endif |
| ifneq ($(EXTRA_CFLAGS),) |
| CFLAGS += $(EXTRA_CFLAGS) |
| endif |
| ifneq ($(EXTRA_LDFLAGS),) |
| LDFLAGS += $(EXTRA_LDFLAGS) |
| endif |
| |
| INSTALL ?= install |
| RM ?= rm -f |
| |
| FEATURE_USER = .bpftool |
| FEATURE_TESTS = libbfd disassembler-four-args zlib libcap \ |
| clang-bpf-co-re |
| FEATURE_DISPLAY = libbfd disassembler-four-args zlib libcap \ |
| clang-bpf-co-re |
| |
| check_feat := 1 |
| NON_CHECK_FEAT_TARGETS := clean uninstall doc doc-clean doc-install doc-uninstall |
| ifdef MAKECMDGOALS |
| ifeq ($(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 |
| |
| 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 |
| |
| HOST_CFLAGS = $(subst -I$(LIBBPF_INCLUDE),-I$(LIBBPF_BOOTSTRAP_INCLUDE),\ |
| $(subst $(CLANG_CROSS_FLAGS),,$(CFLAGS))) |
| |
| BPFTOOL_BOOTSTRAP := $(BOOTSTRAP_OUTPUT)bpftool |
| |
| BOOTSTRAP_OBJS = $(addprefix $(BOOTSTRAP_OUTPUT),main.o common.o json_writer.o gen.o btf.o xlated_dumper.o btf_dumper.o disasm.o) |
| $(BOOTSTRAP_OBJS): $(LIBBPF_BOOTSTRAP) |
| |
| OBJS = $(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o |
| $(OBJS): $(LIBBPF) $(LIBBPF_INTERNAL_HDRS) |
| |
| 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)))) |
| |
| bootstrap: $(BPFTOOL_BOOTSTRAP) |
| |
| ifneq ($(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_BOOTSTRAP) |
| $(QUIET_CLANG)$(CLANG) \ |
| -I$(if $(OUTPUT),$(OUTPUT),.) \ |
| -I$(srctree)/tools/include/uapi/ \ |
| -I$(LIBBPF_BOOTSTRAP_INCLUDE) \ |
| -g -O2 -Wall -target bpf -c $< -o $@ |
| $(Q)$(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) |
| |
| $(BOOTSTRAP_OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c |
| $(QUIET_CC)$(HOSTCC) $(HOST_CFLAGS) -c -MMD $< -o $@ |
| |
| $(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c |
| $(QUIET_CC)$(CC) $(CFLAGS) -c -MMD $< -o $@ |
| |
| $(OUTPUT)feature.o: |
| ifneq ($(feature-zlib), 1) |
| $(error "No zlib found") |
| endif |
| |
| $(BPFTOOL_BOOTSTRAP): $(BOOTSTRAP_OBJS) $(LIBBPF_BOOTSTRAP) |
| $(QUIET_LINK)$(HOSTCC) $(HOST_CFLAGS) $(LDFLAGS) $(BOOTSTRAP_OBJS) $(LIBS_BOOTSTRAP) -o $@ |
| |
| $(OUTPUT)bpftool: $(OBJS) $(LIBBPF) |
| $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) $(LIBS) -o $@ |
| |
| $(BOOTSTRAP_OUTPUT)%.o: %.c $(LIBBPF_BOOTSTRAP_INTERNAL_HDRS) | $(BOOTSTRAP_OUTPUT) |
| $(QUIET_CC)$(HOSTCC) $(HOST_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-bin: $(OUTPUT)bpftool |
| $(call QUIET_INSTALL, bpftool) |
| $(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/sbin |
| $(Q)$(INSTALL) $(OUTPUT)bpftool $(DESTDIR)$(prefix)/sbin/bpftool |
| |
| install: install-bin |
| $(Q)$(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: |
| |
| .SECONDARY: |
| .PHONY: all FORCE bootstrap clean install-bin install uninstall |
| .PHONY: doc doc-clean doc-install doc-uninstall |
| .DEFAULT_GOAL := all |