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 srctree := $(abspath $(CURDIR)/../../../)
   6
   7 ifeq ($(V),1)
   8   Q =
   9   msg =
  10 else
  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
  18 endif
  19
  20 # always use the host compiler
  21 AR       = $(HOSTAR)
  22 CC       = $(HOSTCC)
  23 LD       = $(HOSTLD)
  24 ARCH     = $(HOSTARCH)
  25 RM      ?= rm
  26
  27 OUTPUT ?= $(srctree)/tools/bpf/resolve_btfids/
  28
  29 LIBBPF_SRC := $(srctree)/tools/lib/bpf/
  30 SUBCMD_SRC := $(srctree)/tools/lib/subcmd/
  31
  32 BPFOBJ     := $(OUTPUT)/libbpf/libbpf.a
  33 SUBCMDOBJ  := $(OUTPUT)/libsubcmd/libsubcmd.a
  34
  35 BINARY     := $(OUTPUT)/resolve_btfids
  36 BINARY_IN  := $(BINARY)-in.o
  37
  38 all: $(BINARY)
  39
  40 $(OUTPUT) $(OUTPUT)/libbpf $(OUTPUT)/libsubcmd:
  41         $(call msg,MKDIR,,$@)
  42         $(Q)mkdir -p $(@)
  43
  44 $(SUBCMDOBJ): fixdep FORCE | $(OUTPUT)/libsubcmd
  45         $(Q)$(MAKE) -C $(SUBCMD_SRC) OUTPUT=$(abspath $(dir $@))/ $(abspath $@)
  46
  47 $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(OUTPUT)/libbpf
  48         $(Q)$(MAKE) $(submake_extras) -C $(LIBBPF_SRC)  OUTPUT=$(abspath $(dir $@))/ $(abspath $@)
  49
  50 CFLAGS := -g \
  51           -I$(srctree)/tools/include \
  52           -I$(srctree)/tools/include/uapi \
  53           -I$(LIBBPF_SRC) \
  54           -I$(SUBCMD_SRC)
  55
  56 LIBS = -lelf -lz
  57
  58 export srctree OUTPUT CFLAGS Q
  59 include $(srctree)/tools/build/Makefile.include
  60
  61 $(BINARY_IN): fixdep FORCE | $(OUTPUT)
  62         $(Q)$(MAKE) $(build)=resolve_btfids
  63
  64 $(BINARY): $(BPFOBJ) $(SUBCMDOBJ) $(BINARY_IN)
  65         $(call msg,LINK,$@)
  66         $(Q)$(CC) $(BINARY_IN) $(LDFLAGS) -o $@ $(BPFOBJ) $(SUBCMDOBJ) $(LIBS)
  67
  68 clean_objects := $(wildcard $(OUTPUT)/*.o                \
  69                             $(OUTPUT)/.*.o.cmd           \
  70                             $(OUTPUT)/.*.o.d             \
  71                             $(OUTPUT)/libbpf             \
  72                             $(OUTPUT)/libsubcmd          \
  73                             $(OUTPUT)/resolve_btfids)
  74
  75 ifneq ($(clean_objects),)
  76 clean: fixdep-clean
  77         $(call msg,CLEAN,$(BINARY))
  78         $(Q)$(RM) -rf $(clean_objects)
  79 else
  80 clean:
  81 endif
  82
  83 tags:
  84         $(call msg,GEN,,tags)
  85         $(Q)ctags -R . $(LIBBPF_SRC) $(SUBCMD_SRC)
  86
  87 FORCE:
  88
  89 .PHONY: all FORCE clean tags