Makefile (2601B)
1# SPDX-License-Identifier: GPL-2.0-only 2include ../../scripts/Makefile.include 3include ../../scripts/Makefile.arch 4 5srctree := $(abspath $(CURDIR)/../../../) 6 7ifeq ($(V),1) 8 Q = 9 msg = 10else 11 Q = @ 12 ifeq ($(silent),1) 13 msg = 14 else 15 msg = @printf ' %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))"; 16 endif 17 MAKEFLAGS=--no-print-directory 18endif 19 20# always use the host compiler 21AR = $(HOSTAR) 22CC = $(HOSTCC) 23LD = $(HOSTLD) 24ARCH = $(HOSTARCH) 25RM ?= rm 26CROSS_COMPILE = 27CFLAGS := $(KBUILD_HOSTCFLAGS) 28LDFLAGS := $(KBUILD_HOSTLDFLAGS) 29 30OUTPUT ?= $(srctree)/tools/bpf/resolve_btfids/ 31 32LIBBPF_SRC := $(srctree)/tools/lib/bpf/ 33SUBCMD_SRC := $(srctree)/tools/lib/subcmd/ 34 35BPFOBJ := $(OUTPUT)/libbpf/libbpf.a 36LIBBPF_OUT := $(abspath $(dir $(BPFOBJ)))/ 37SUBCMDOBJ := $(OUTPUT)/libsubcmd/libsubcmd.a 38 39LIBBPF_DESTDIR := $(LIBBPF_OUT) 40LIBBPF_INCLUDE := $(LIBBPF_DESTDIR)include 41 42BINARY := $(OUTPUT)/resolve_btfids 43BINARY_IN := $(BINARY)-in.o 44 45all: $(BINARY) 46 47$(OUTPUT) $(OUTPUT)/libsubcmd $(LIBBPF_OUT): 48 $(call msg,MKDIR,,$@) 49 $(Q)mkdir -p $(@) 50 51$(SUBCMDOBJ): fixdep FORCE | $(OUTPUT)/libsubcmd 52 $(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(abspath $(dir $@))/ $(abspath $@) 53 54$(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(LIBBPF_OUT) 55 $(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(LIBBPF_OUT) \ 56 DESTDIR=$(LIBBPF_DESTDIR) prefix= EXTRA_CFLAGS="$(CFLAGS)" \ 57 $(abspath $@) install_headers 58 59CFLAGS += -g \ 60 -I$(srctree)/tools/include \ 61 -I$(srctree)/tools/include/uapi \ 62 -I$(LIBBPF_INCLUDE) \ 63 -I$(SUBCMD_SRC) 64 65LIBS = -lelf -lz 66 67export srctree OUTPUT CFLAGS Q 68include $(srctree)/tools/build/Makefile.include 69 70$(BINARY_IN): $(BPFOBJ) fixdep FORCE | $(OUTPUT) 71 $(Q)$(MAKE) $(build)=resolve_btfids 72 73$(BINARY): $(BPFOBJ) $(SUBCMDOBJ) $(BINARY_IN) 74 $(call msg,LINK,$@) 75 $(Q)$(CC) $(BINARY_IN) $(LDFLAGS) -o $@ $(BPFOBJ) $(SUBCMDOBJ) $(LIBS) 76 77clean_objects := $(wildcard $(OUTPUT)/*.o \ 78 $(OUTPUT)/.*.o.cmd \ 79 $(OUTPUT)/.*.o.d \ 80 $(LIBBPF_OUT) \ 81 $(LIBBPF_DESTDIR) \ 82 $(OUTPUT)/libsubcmd \ 83 $(OUTPUT)/resolve_btfids) 84 85ifneq ($(clean_objects),) 86clean: fixdep-clean 87 $(call msg,CLEAN,$(BINARY)) 88 $(Q)$(RM) -rf $(clean_objects) 89else 90clean: 91endif 92 93tags: 94 $(call msg,GEN,,tags) 95 $(Q)ctags -R . $(LIBBPF_SRC) $(SUBCMD_SRC) 96 97FORCE: 98 99.PHONY: all FORCE clean tags