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 49bash_compdir ?= $(prefix)/share/bash-completion/completions 50 51CC = gcc 52 53CFLAGS += -O2 54CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wshadow 55CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi -I$(srctree)/tools/include -I$(srctree)/tools/lib/bpf -I$(srctree)/kernel/bpf/ 56LIBS = -lelf -lbfd -lopcodes $(LIBBPF) 57 58include $(wildcard *.d) 59 60all: $(OUTPUT)bpftool 61 62SRCS=$(wildcard *.c) 63OBJS=$(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o 64 65$(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c 66 $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $< 67 68$(OUTPUT)bpftool: $(OBJS) $(LIBBPF) 69 $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ $(LIBS) 70 71$(OUTPUT)%.o: %.c 72 $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $< 73 74clean: $(LIBBPF)-clean 75 $(call QUIET_CLEAN, bpftool) 76 $(Q)rm -rf $(OUTPUT)bpftool $(OUTPUT)*.o $(OUTPUT)*.d 77 78install: 79 install $(OUTPUT)bpftool $(prefix)/sbin/bpftool 80 install -m 0755 -d $(bash_compdir) 81 install -m 0644 bash-completion/bpftool $(bash_compdir) 82 83doc: 84 $(Q)$(MAKE) -C Documentation/ 85 86doc-install: 87 $(Q)$(MAKE) -C Documentation/ install 88 89FORCE: 90 91.PHONY: all clean FORCE 92.DEFAULT_GOAL := all 93