tools/bpf/resolve_btfids/Makefile

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