xref: /linux/tools/bpf/bpftool/Makefile (revision 83a37b3292f4aca799b355179ad6fbdd78a08e10) 
1include ../../scripts/Makefile.include
2
3include ../../scripts/utilities.mak
4
5ifeq ($(srctree),)
6srctree := $(patsubst %/,%,$(dir $(CURDIR)))
7srctree := $(patsubst %/,%,$(dir $(srctree)))
8srctree := $(patsubst %/,%,$(dir $(srctree)))
9#$(info Determined 'srctree' to be $(srctree))
10endif
11
12ifneq ($(objtree),)
13#$(info Determined 'objtree' to be $(objtree))
14endif
15
16ifneq ($(OUTPUT),)
17#$(info Determined 'OUTPUT' to be $(OUTPUT))
18# Adding $(OUTPUT) as a directory to look for source files,
19# because use generated output files as sources dependency
20# for flex/bison parsers.
21VPATH += $(OUTPUT)
22export VPATH
23endif
24
25ifeq ($(V),1)
26  Q =
27else
28  Q = @
29endif
30
31BPF_DIR	= $(srctree)/tools/lib/bpf/
32
33ifneq ($(OUTPUT),)
34  BPF_PATH=$(OUTPUT)
35else
36  BPF_PATH=$(BPF_DIR)
37endif
38
39LIBBPF = $(BPF_PATH)libbpf.a
40
41$(LIBBPF): FORCE
42	$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) $(OUTPUT)libbpf.a FEATURES_DUMP=$(FEATURE_DUMP_EXPORT)
43
44$(LIBBPF)-clean:
45	$(call QUIET_CLEAN, libbpf)
46	$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) clean >/dev/null
47
48prefix = /usr
49
50CC = gcc
51
52CFLAGS += -O2
53CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wshadow
54CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi -I$(srctree)/tools/include -I$(srctree)/tools/lib/bpf -I$(srctree)/kernel/bpf/
55LIBS = -lelf -lbfd -lopcodes $(LIBBPF)
56
57include $(wildcard *.d)
58
59all: $(OUTPUT)bpftool
60
61SRCS=$(wildcard *.c)
62OBJS=$(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o
63
64$(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c
65	$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
66
67$(OUTPUT)bpftool: $(OBJS) $(LIBBPF)
68	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
69
70$(OUTPUT)%.o: %.c
71	$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
72
73clean: $(LIBBPF)-clean
74	$(call QUIET_CLEAN, bpftool)
75	$(Q)rm -rf $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d
76
77install:
78	install $(OUTPUT)bpftool $(prefix)/sbin/bpftool
79
80doc:
81	$(Q)$(MAKE) -C Documentation/
82
83doc-install:
84	$(Q)$(MAKE) -C Documentation/ install
85
86FORCE:
87
88.PHONY: all clean FORCE
89.DEFAULT_GOAL := all
90