1 # SPDX-License-Identifier: GPL-2.0-only
2 include ../../scripts/Makefile.include
3 include ../../scripts/utilities.mak
6 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
7 srctree := $(patsubst %/,%,$(dir $(srctree)))
8 srctree := $(patsubst %/,%,$(dir $(srctree)))
17 BPF_DIR = $(srctree)/tools/lib/bpf/
20 LIBBPF_OUTPUT = $(OUTPUT)/libbpf/
21 LIBBPF_PATH = $(LIBBPF_OUTPUT)
23 LIBBPF_PATH = $(BPF_DIR)
26 LIBBPF = $(LIBBPF_PATH)libbpf.a
28 BPFTOOL_VERSION := $(shell make -rR --no-print-directory -sC ../../.. kernelversion)
31 $(if $(LIBBPF_OUTPUT),@mkdir -p $(LIBBPF_OUTPUT))
32 $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) $(LIBBPF_OUTPUT)libbpf.a
35 $(call QUIET_CLEAN, libbpf)
36 $(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_OUTPUT) clean >/dev/null
39 bash_compdir ?= /usr/share/bash-completion/completions
42 CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers
43 CFLAGS += $(filter-out -Wswitch-enum,$(EXTRA_WARNINGS))
44 CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
45 -I$(srctree)/kernel/bpf/ \
46 -I$(srctree)/tools/include \
47 -I$(srctree)/tools/include/uapi \
48 -I$(srctree)/tools/lib \
49 -I$(srctree)/tools/perf
50 CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"'
51 ifneq ($(EXTRA_CFLAGS),)
52 CFLAGS += $(EXTRA_CFLAGS)
54 ifneq ($(EXTRA_LDFLAGS),)
55 LDFLAGS += $(EXTRA_LDFLAGS)
58 LIBS = $(LIBBPF) -lelf -lz
64 FEATURE_USER = .bpftool
65 FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib
66 FEATURE_DISPLAY = libbfd disassembler-four-args zlib
69 NON_CHECK_FEAT_TARGETS := clean uninstall doc doc-clean doc-install doc-uninstall
71 ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
76 ifeq ($(check_feat),1)
77 ifeq ($(FEATURES_DUMP),)
78 include $(srctree)/tools/build/Makefile.feature
80 include $(FEATURES_DUMP)
84 ifeq ($(feature-disassembler-four-args), 1)
85 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
88 ifeq ($(feature-reallocarray), 0)
89 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
92 include $(wildcard $(OUTPUT)*.d)
96 BFD_SRCS = jit_disasm.c
98 SRCS = $(filter-out $(BFD_SRCS),$(wildcard *.c))
100 ifeq ($(feature-libbfd),1)
101 LIBS += -lbfd -ldl -lopcodes
102 else ifeq ($(feature-libbfd-liberty),1)
103 LIBS += -lbfd -ldl -lopcodes -liberty
104 else ifeq ($(feature-libbfd-liberty-z),1)
105 LIBS += -lbfd -ldl -lopcodes -liberty -lz
108 ifneq ($(filter -lbfd,$(LIBS)),)
109 CFLAGS += -DHAVE_LIBBFD_SUPPORT
113 OBJS = $(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o
114 _OBJS = $(filter-out $(OUTPUT)prog.o,$(OBJS)) $(OUTPUT)_prog.o
116 $(OUTPUT)_prog.o: prog.c
117 $(QUIET_CC)$(COMPILE.c) -MMD -DBPFTOOL_WITHOUT_SKELETONS -o $@ $<
119 $(OUTPUT)_bpftool: $(_OBJS) $(LIBBPF)
120 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(_OBJS) $(LIBS)
122 skeleton/profiler.bpf.o: skeleton/profiler.bpf.c
123 $(QUIET_CLANG)$(CLANG) \
124 -I$(srctree)/tools/include/uapi/ \
125 -I$(srctree)/tools/testing/selftests/bpf/include/uapi \
126 -I$(srctree)/tools/lib -g -O2 -target bpf -c $< -o $@
128 profiler.skel.h: $(OUTPUT)_bpftool skeleton/profiler.bpf.o
129 $(QUIET_GEN)$(OUTPUT)./_bpftool gen skeleton skeleton/profiler.bpf.o > $@
131 $(OUTPUT)prog.o: prog.c profiler.skel.h
132 $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
134 $(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c
135 $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
137 $(OUTPUT)feature.o: | zdep
139 $(OUTPUT)bpftool: $(OBJS) $(LIBBPF)
140 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJS) $(LIBS)
143 $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
145 clean: $(LIBBPF)-clean
146 $(call QUIET_CLEAN, bpftool)
147 $(Q)$(RM) -- $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d
148 $(Q)$(RM) -- $(OUTPUT)_bpftool profiler.skel.h skeleton/profiler.bpf.o
149 $(Q)$(RM) -r -- $(OUTPUT)libbpf/
150 $(call QUIET_CLEAN, core-gen)
151 $(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpftool
152 $(Q)$(RM) -r -- $(OUTPUT)feature/
154 install: $(OUTPUT)bpftool
155 $(call QUIET_INSTALL, bpftool)
156 $(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/sbin
157 $(Q)$(INSTALL) $(OUTPUT)bpftool $(DESTDIR)$(prefix)/sbin/bpftool
158 $(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(bash_compdir)
159 $(Q)$(INSTALL) -m 0644 bash-completion/bpftool $(DESTDIR)$(bash_compdir)
162 $(call QUIET_UNINST, bpftool)
163 $(Q)$(RM) -- $(DESTDIR)$(prefix)/sbin/bpftool
164 $(Q)$(RM) -- $(DESTDIR)$(bash_compdir)/bpftool
167 $(call descend,Documentation)
170 $(call descend,Documentation,clean)
173 $(call descend,Documentation,install)
176 $(call descend,Documentation,uninstall)
181 @if [ "$(feature-zlib)" != "1" ]; then echo "No zlib found"; exit 1 ; fi
183 .PHONY: all FORCE clean install uninstall zdep
184 .PHONY: doc doc-clean doc-install doc-uninstall