1include ../../scripts/Makefile.include
  2include ../../scripts/utilities.mak
  3
  4ifeq ($(srctree),)
  5srctree := $(patsubst %/,%,$(dir $(CURDIR)))
  6srctree := $(patsubst %/,%,$(dir $(srctree)))
  7srctree := $(patsubst %/,%,$(dir $(srctree)))
  8endif
  9
 10ifeq ($(V),1)
 11  Q =
 12else
 13  Q = @
 14endif
 15
 16BPF_DIR = $(srctree)/tools/lib/bpf/
 17
 18ifneq ($(OUTPUT),)
 19  BPF_PATH = $(OUTPUT)
 20else
 21  BPF_PATH = $(BPF_DIR)
 22endif
 23
 24LIBBPF = $(BPF_PATH)libbpf.a
 25
 26BPFTOOL_VERSION=$(shell make --no-print-directory -sC ../../.. kernelversion)
 27
 28$(LIBBPF): FORCE
 29	$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) $(OUTPUT)libbpf.a FEATURES_DUMP=$(FEATURE_DUMP_EXPORT)
 30
 31$(LIBBPF)-clean:
 32	$(call QUIET_CLEAN, libbpf)
 33	$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(OUTPUT) clean >/dev/null
 34
 35prefix ?= /usr/local
 36bash_compdir ?= /usr/share/bash-completion/completions
 37
 38CC = gcc
 39
 40CFLAGS += -O2
 41CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wshadow -Wno-missing-field-initializers
 42CFLAGS += -DPACKAGE='"bpftool"' -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi -I$(srctree)/tools/include -I$(srctree)/tools/lib/bpf -I$(srctree)/kernel/bpf/
 43CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"'
 44LIBS = -lelf -lbfd -lopcodes $(LIBBPF)
 45
 46INSTALL ?= install
 47RM ?= rm -f
 48
 49FEATURE_USER = .bpftool
 50FEATURE_TESTS = libbfd disassembler-four-args
 51FEATURE_DISPLAY = libbfd disassembler-four-args
 52
 53check_feat := 1
 54NON_CHECK_FEAT_TARGETS := clean uninstall doc doc-clean doc-install doc-uninstall
 55ifdef MAKECMDGOALS
 56ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
 57  check_feat := 0
 58endif
 59endif
 60
 61ifeq ($(check_feat),1)
 62ifeq ($(FEATURES_DUMP),)
 63include $(srctree)/tools/build/Makefile.feature
 64else
 65include $(FEATURES_DUMP)
 66endif
 67endif
 68
 69ifeq ($(feature-disassembler-four-args), 1)
 70CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
 71endif
 72
 73include $(wildcard $(OUTPUT)*.d)
 74
 75all: $(OUTPUT)bpftool
 76
 77SRCS = $(wildcard *.c)
 78OBJS = $(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o
 79
 80$(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c
 81	$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
 82
 83$(OUTPUT)bpftool: $(OBJS) $(LIBBPF)
 84	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
 85
 86$(OUTPUT)%.o: %.c
 87	$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
 88
 89clean: $(LIBBPF)-clean
 90	$(call QUIET_CLEAN, bpftool)
 91	$(Q)$(RM) $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d
 92	$(call QUIET_CLEAN, core-gen)
 93	$(Q)$(RM) $(OUTPUT)FEATURE-DUMP.bpftool
 94
 95install: $(OUTPUT)bpftool
 96	$(call QUIET_INSTALL, bpftool)
 97	$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/sbin
 98	$(Q)$(INSTALL) $(OUTPUT)bpftool $(DESTDIR)$(prefix)/sbin/bpftool
 99	$(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(bash_compdir)
100	$(Q)$(INSTALL) -m 0644 bash-completion/bpftool $(DESTDIR)$(bash_compdir)
101
102uninstall:
103	$(call QUIET_UNINST, bpftool)
104	$(Q)$(RM) $(DESTDIR)$(prefix)/sbin/bpftool
105	$(Q)$(RM) $(DESTDIR)$(bash_compdir)/bpftool
106
107doc:
108	$(call descend,Documentation)
109
110doc-clean:
111	$(call descend,Documentation,clean)
112
113doc-install:
114	$(call descend,Documentation,install)
115
116doc-uninstall:
117	$(call descend,Documentation,uninstall)
118
119FORCE:
120
121.PHONY: all FORCE clean install uninstall
122.PHONY: doc doc-clean doc-install doc-uninstall
123.DEFAULT_GOAL := all