OSCL-LXR

0001 # SPDX-License-Identifier: GPL-2.0-only
0002 include ../../scripts/Makefile.include
0003 include ../../scripts/Makefile.arch
0004
0005 srctree := $(abspath $(CURDIR)/../../../)
0006
0007 ifeq ($(V),1)
0008   Q =
0009   msg =
0010 else
0011   Q = @
0012   ifeq ($(silent),1)
0013     msg =
0014   else
0015     msg = @printf '  %-8s %s%s\n' "$(1)" "$(notdir $(2))" "$(if $(3), $(3))";
0016   endif
0017   MAKEFLAGS=--no-print-directory
0018 endif
0019
0020 # always use the host compiler
0021 AR       = $(HOSTAR)
0022 CC       = $(HOSTCC)
0023 LD       = $(HOSTLD)
0024 ARCH     = $(HOSTARCH)
0025 RM      ?= rm
0026 CROSS_COMPILE =
0027 CFLAGS  := $(KBUILD_HOSTCFLAGS)
0028 LDFLAGS := $(KBUILD_HOSTLDFLAGS)
0029
0030 OUTPUT ?= $(srctree)/tools/bpf/resolve_btfids/
0031
0032 LIBBPF_SRC := $(srctree)/tools/lib/bpf/
0033 SUBCMD_SRC := $(srctree)/tools/lib/subcmd/
0034
0035 BPFOBJ     := $(OUTPUT)/libbpf/libbpf.a
0036 LIBBPF_OUT := $(abspath $(dir $(BPFOBJ)))/
0037 SUBCMDOBJ  := $(OUTPUT)/libsubcmd/libsubcmd.a
0038
0039 LIBBPF_DESTDIR := $(LIBBPF_OUT)
0040 LIBBPF_INCLUDE := $(LIBBPF_DESTDIR)include
0041
0042 BINARY     := $(OUTPUT)/resolve_btfids
0043 BINARY_IN  := $(BINARY)-in.o
0044
0045 all: $(BINARY)
0046
0047 $(OUTPUT) $(OUTPUT)/libsubcmd $(LIBBPF_OUT):
0048         $(call msg,MKDIR,,$@)
0049         $(Q)mkdir -p $(@)
0050
0051 $(SUBCMDOBJ): fixdep FORCE | $(OUTPUT)/libsubcmd
0052         $(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(abspath $(dir $@))/ $(abspath $@)
0053
0054 $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(LIBBPF_OUT)
0055         $(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC) OUTPUT=$(LIBBPF_OUT)    \
0056                     DESTDIR=$(LIBBPF_DESTDIR) prefix= EXTRA_CFLAGS="$(CFLAGS)" \
0057                     $(abspath $@) install_headers
0058
0059 CFLAGS += -g \
0060           -I$(srctree)/tools/include \
0061           -I$(srctree)/tools/include/uapi \
0062           -I$(LIBBPF_INCLUDE) \
0063           -I$(SUBCMD_SRC)
0064
0065 LIBS = -lelf -lz
0066
0067 export srctree OUTPUT CFLAGS Q
0068 include $(srctree)/tools/build/Makefile.include
0069
0070 $(BINARY_IN): $(BPFOBJ) fixdep FORCE | $(OUTPUT)
0071         $(Q)$(MAKE) $(build)=resolve_btfids
0072
0073 $(BINARY): $(BPFOBJ) $(SUBCMDOBJ) $(BINARY_IN)
0074         $(call msg,LINK,$@)
0075         $(Q)$(CC) $(BINARY_IN) $(LDFLAGS) -o $@ $(BPFOBJ) $(SUBCMDOBJ) $(LIBS)
0076
0077 clean_objects := $(wildcard $(OUTPUT)/*.o                \
0078                             $(OUTPUT)/.*.o.cmd           \
0079                             $(OUTPUT)/.*.o.d             \
0080                             $(LIBBPF_OUT)                \
0081                             $(LIBBPF_DESTDIR)            \
0082                             $(OUTPUT)/libsubcmd          \
0083                             $(OUTPUT)/resolve_btfids)
0084
0085 ifneq ($(clean_objects),)
0086 clean: fixdep-clean
0087         $(call msg,CLEAN,$(BINARY))
0088         $(Q)$(RM) -rf $(clean_objects)
0089 else
0090 clean:
0091 endif
0092
0093 tags:
0094         $(call msg,GEN,,tags)
0095         $(Q)ctags -R . $(LIBBPF_SRC) $(SUBCMD_SRC)
0096
0097 FORCE:
0098
0099 .PHONY: all FORCE clean tags