1# 2# Kbuild for top-level directory of U-Boot 3# This file takes care of the following: 4# 1) Generate generic-asm-offsets.h 5# 2) Generate asm-offsets.h 6 7# Default sed regexp - multiline due to syntax constraints 8define sed-y 9 "s:[[:space:]]*\.ascii[[:space:]]*\"\(.*\)\":\1:; \ 10 /^->/{s:->#\(.*\):/* \1 */:; \ 11 s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ 12 s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ 13 s:->::; p;}" 14endef 15 16quiet_cmd_offsets = GEN $@ 17define cmd_offsets 18 (set -e; \ 19 echo "#ifndef $2"; \ 20 echo "#define $2"; \ 21 echo "/*"; \ 22 echo " * DO NOT MODIFY."; \ 23 echo " *"; \ 24 echo " * This file was generated by Kbuild"; \ 25 echo " */"; \ 26 echo ""; \ 27 sed -ne $(sed-y) $<; \ 28 echo ""; \ 29 echo "#endif" ) > $@ 30endef 31 32##### 33# 1) Generate generic-asm-offsets.h 34 35generic-offsets-file := include/generated/generic-asm-offsets.h 36 37always := $(generic-offsets-file) 38targets := $(generic-offsets-file) lib/asm-offsets.s 39 40# We use internal kbuild rules to avoid the "is up to date" message from make 41lib/asm-offsets.s: lib/asm-offsets.c FORCE 42 $(Q)mkdir -p $(dir $@) 43 $(call if_changed_dep,cc_s_c) 44 45$(obj)/$(generic-offsets-file): lib/asm-offsets.s Kbuild 46 $(Q)mkdir -p $(dir $@) 47 $(call cmd,offsets,__GENERIC_ASM_OFFSETS_H__) 48 49##### 50# 2) Generate asm-offsets.h 51# 52 53ifneq ($(wildcard $(srctree)/arch/$(ARCH)/lib/asm-offsets.c),) 54offsets-file := include/generated/asm-offsets.h 55endif 56 57always += $(offsets-file) 58targets += $(offsets-file) 59targets += arch/$(ARCH)/lib/asm-offsets.s 60 61CFLAGS_asm-offsets.o := -DDO_DEPS_ONLY 62 63# We use internal kbuild rules to avoid the "is up to date" message from make 64arch/$(ARCH)/lib/asm-offsets.s: arch/$(ARCH)/lib/asm-offsets.c FORCE 65 $(Q)mkdir -p $(dir $@) 66 $(call if_changed_dep,cc_s_c) 67 68$(obj)/$(offsets-file): arch/$(ARCH)/lib/asm-offsets.s Kbuild 69 $(call cmd,offsets,__ASM_OFFSETS_H__) 70