scripts/mod/Makefile

   1 hostprogs-y     := modpost mk_elfconfig
   2 always          := $(hostprogs-y) empty.o
   3
   4 modpost-objs    := modpost.o file2alias.o sumversion.o
   5
   6 devicetable-offsets-file := devicetable-offsets.h
   7
   8 define sed-y
   9         "/^->/{s:->#\(.*\):/* \1 */:; \
  10         s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
  11         s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
  12         s:->::; p;}"
  13 endef
  14
  15 quiet_cmd_offsets = GEN     $@
  16 define cmd_offsets
  17         (set -e; \
  18          echo "#ifndef __DEVICEVTABLE_OFFSETS_H__"; \
  19          echo "#define __DEVICEVTABLE_OFFSETS_H__"; \
  20          echo "/*"; \
  21          echo " * DO NOT MODIFY."; \
  22          echo " *"; \
  23          echo " * This file was generated by Kbuild"; \
  24          echo " *"; \
  25          echo " */"; \
  26          echo ""; \
  27          sed -ne $(sed-y) $<; \
  28          echo ""; \
  29          echo "#endif" ) > $@
  30 endef
  31
  32 # We use internal kbuild rules to avoid the "is up to date" message from make
  33 scripts/mod/devicetable-offsets.s: scripts/mod/devicetable-offsets.c FORCE
  34         $(Q)mkdir -p $(dir $@)
  35         $(call if_changed_dep,cc_s_c)
  36
  37 $(obj)/$(devicetable-offsets-file): scripts/mod/devicetable-offsets.s
  38         $(call cmd,offsets)
  39
  40 targets += $(devicetable-offsets-file)
  41
  42 # dependencies on generated files need to be listed explicitly
  43
  44 $(obj)/modpost.o $(obj)/file2alias.o $(obj)/sumversion.o: $(obj)/elfconfig.h
  45 $(obj)/file2alias.o: $(obj)/$(devicetable-offsets-file)
  46
  47 quiet_cmd_elfconfig = MKELF   $@
  48       cmd_elfconfig = $(obj)/mk_elfconfig < $< > $@
  49
  50 $(obj)/elfconfig.h: $(obj)/empty.o $(obj)/mk_elfconfig FORCE
  51         $(call if_changed,elfconfig)
  52
  53 targets += elfconfig.h