xref: /linux/tools/bpf/bpftool/Makefile (revision 10a708c24a31ae1be1ea23d1c38da2691d1fd65c) 
1# SPDX-License-Identifier: GPL-2.0-only
2include ../../scripts/Makefile.include
3include ../../scripts/utilities.mak
4
5ifeq ($(srctree),)
6srctree := $(patsubst %/,%,$(dir $(CURDIR)))
7srctree := $(patsubst %/,%,$(dir $(srctree)))
8srctree := $(patsubst %/,%,$(dir $(srctree)))
9endif
10
11ifeq ($(V),1)
12  Q =
13else
14  Q = @
15endif
16
17BPF_DIR = $(srctree)/tools/lib/bpf/
18
19ifneq ($(OUTPUT),)
20  BPF_PATH = $(OUTPUT)
21else
22  BPF_PATH = $(BPF_DIR)
23endif
24
25LIBBPF = $(BPF_PATH)libbpf.a
26
27BPFTOOL_VERSION := $(shell make --no-print-directory -sC ../../.. kernelversion)
28
29$(LIBBPF): FORCE
30	$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) $(OUTPUT)libbpf.a
31
32$(LIBBPF)-clean:
33	$(call QUIET_CLEAN, libbpf)
34	$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) clean >/dev/null
35
36prefix ?= /usr/local
37bash_compdir ?= /usr/share/bash-completion/completions
38
39CFLAGS += -O2
40CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers
41CFLAGS += $(filter-out -Wswitch-enum,$(EXTRA_WARNINGS))
42CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ \
43	-I$(srctree)/kernel/bpf/ \
44	-I$(srctree)/tools/include \
45	-I$(srctree)/tools/include/uapi \
46	-I$(srctree)/tools/lib/bpf \
47	-I$(srctree)/tools/perf
48CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"'
49ifneq ($(EXTRA_CFLAGS),)
50CFLAGS += $(EXTRA_CFLAGS)
51endif
52ifneq ($(EXTRA_LDFLAGS),)
53LDFLAGS += $(EXTRA_LDFLAGS)
54endif
55
56LIBS = -lelf -lz $(LIBBPF)
57
58INSTALL ?= install
59RM ?= rm -f
60
61FEATURE_USER = .bpftool
62FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib
63FEATURE_DISPLAY = libbfd disassembler-four-args zlib
64
65check_feat := 1
66NON_CHECK_FEAT_TARGETS := clean uninstall doc doc-clean doc-install doc-uninstall
67ifdef MAKECMDGOALS
68ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
69  check_feat := 0
70endif
71endif
72
73ifeq ($(check_feat),1)
74ifeq ($(FEATURES_DUMP),)
75include $(srctree)/tools/build/Makefile.feature
76else
77include $(FEATURES_DUMP)
78endif
79endif
80
81ifeq ($(feature-disassembler-four-args), 1)
82CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
83endif
84
85ifeq ($(feature-reallocarray), 0)
86CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
87endif
88
89include $(wildcard $(OUTPUT)*.d)
90
91all: $(OUTPUT)bpftool
92
93BFD_SRCS = jit_disasm.c
94
95SRCS = $(filter-out $(BFD_SRCS),$(wildcard *.c))
96
97ifeq ($(feature-libbfd),1)
98  LIBS += -lbfd -ldl -lopcodes
99else ifeq ($(feature-libbfd-liberty),1)
100  LIBS += -lbfd -ldl -lopcodes -liberty
101else ifeq ($(feature-libbfd-liberty-z),1)
102  LIBS += -lbfd -ldl -lopcodes -liberty -lz
103endif
104
105ifneq ($(filter -lbfd,$(LIBS)),)
106CFLAGS += -DHAVE_LIBBFD_SUPPORT
107SRCS += $(BFD_SRCS)
108endif
109
110OBJS = $(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o
111
112$(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c
113	$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
114
115$(OUTPUT)feature.o: | zdep
116
117$(OUTPUT)bpftool: $(OBJS) $(LIBBPF)
118	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
119
120$(OUTPUT)%.o: %.c
121	$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
122
123clean: $(LIBBPF)-clean
124	$(call QUIET_CLEAN, bpftool)
125	$(Q)$(RM) $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d
126	$(call QUIET_CLEAN, core-gen)
127	$(Q)$(RM) $(OUTPUT)FEATURE-DUMP.bpftool
128
129install: $(OUTPUT)bpftool
130	$(call QUIET_INSTALL, bpftool)
131	$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/sbin
132	$(Q)$(INSTALL) $(OUTPUT)bpftool $(DESTDIR)$(prefix)/sbin/bpftool
133	$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(bash_compdir)
134	$(Q)$(INSTALL) -m 0644 bash-completion/bpftool $(DESTDIR)$(bash_compdir)
135
136uninstall:
137	$(call QUIET_UNINST, bpftool)
138	$(Q)$(RM) $(DESTDIR)$(prefix)/sbin/bpftool
139	$(Q)$(RM) $(DESTDIR)$(bash_compdir)/bpftool
140
141doc:
142	$(call descend,Documentation)
143
144doc-clean:
145	$(call descend,Documentation,clean)
146
147doc-install:
148	$(call descend,Documentation,install)
149
150doc-uninstall:
151	$(call descend,Documentation,uninstall)
152
153FORCE:
154
155zdep:
156	@if [ "$(feature-zlib)" != "1" ]; then echo "No zlib found"; exit 1 ; fi
157
158.PHONY: all FORCE clean install uninstall zdep
159.PHONY: doc doc-clean doc-install doc-uninstall
160.DEFAULT_GOAL := all
161