16a44d806SMasahiro Yamada# 26a44d806SMasahiro Yamada# Kbuild for top-level directory of U-Boot 36a44d806SMasahiro Yamada# This file takes care of the following: 46a44d806SMasahiro Yamada# 1) Generate generic-asm-offsets.h 56a44d806SMasahiro Yamada# 2) Generate asm-offsets.h 66a44d806SMasahiro Yamada 7490cf5f0SMasahiro Yamada# Default sed regexp - multiline due to syntax constraints 8490cf5f0SMasahiro Yamadadefine sed-y 9490cf5f0SMasahiro Yamada "s:[[:space:]]*\.ascii[[:space:]]*\"\(.*\)\":\1:; \ 10490cf5f0SMasahiro Yamada /^->/{s:->#\(.*\):/* \1 */:; \ 11490cf5f0SMasahiro Yamada s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ 12490cf5f0SMasahiro Yamada s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ 13490cf5f0SMasahiro Yamada s:->::; p;}" 14490cf5f0SMasahiro Yamadaendef 156a44d806SMasahiro Yamada 16*3a4f6b60SMichal Marek# Use filechk to avoid rebuilds when a header changes, but the resulting file 17*3a4f6b60SMichal Marek# does not 18*3a4f6b60SMichal Marekdefine filechk_offsets 196a44d806SMasahiro Yamada (set -e; \ 20490cf5f0SMasahiro Yamada echo "#ifndef $2"; \ 21490cf5f0SMasahiro Yamada echo "#define $2"; \ 226a44d806SMasahiro Yamada echo "/*"; \ 236a44d806SMasahiro Yamada echo " * DO NOT MODIFY."; \ 246a44d806SMasahiro Yamada echo " *"; \ 256a44d806SMasahiro Yamada echo " * This file was generated by Kbuild"; \ 266a44d806SMasahiro Yamada echo " */"; \ 276a44d806SMasahiro Yamada echo ""; \ 28*3a4f6b60SMichal Marek sed -ne $(sed-y); \ 296a44d806SMasahiro Yamada echo ""; \ 30*3a4f6b60SMichal Marek echo "#endif" ) 316a44d806SMasahiro Yamadaendef 326a44d806SMasahiro Yamada 33490cf5f0SMasahiro Yamada##### 34490cf5f0SMasahiro Yamada# 1) Generate generic-asm-offsets.h 35490cf5f0SMasahiro Yamada 36490cf5f0SMasahiro Yamadageneric-offsets-file := include/generated/generic-asm-offsets.h 37490cf5f0SMasahiro Yamada 38490cf5f0SMasahiro Yamadaalways := $(generic-offsets-file) 39490cf5f0SMasahiro Yamadatargets := $(generic-offsets-file) lib/asm-offsets.s 40490cf5f0SMasahiro Yamada 416a44d806SMasahiro Yamada# We use internal kbuild rules to avoid the "is up to date" message from make 426a44d806SMasahiro Yamadalib/asm-offsets.s: lib/asm-offsets.c FORCE 436a44d806SMasahiro Yamada $(Q)mkdir -p $(dir $@) 446a44d806SMasahiro Yamada $(call if_changed_dep,cc_s_c) 456a44d806SMasahiro Yamada 46*3a4f6b60SMichal Marek$(obj)/$(generic-offsets-file): lib/asm-offsets.s FORCE 47*3a4f6b60SMichal Marek $(call filechk,offsets,__GENERIC_ASM_OFFSETS_H__) 486a44d806SMasahiro Yamada 496a44d806SMasahiro Yamada##### 506a44d806SMasahiro Yamada# 2) Generate asm-offsets.h 516a44d806SMasahiro Yamada# 526a44d806SMasahiro Yamada 53254d68b6SMasahiro Yamadaifneq ($(wildcard $(srctree)/arch/$(ARCH)/lib/asm-offsets.c),) 546a44d806SMasahiro Yamadaoffsets-file := include/generated/asm-offsets.h 556a44d806SMasahiro Yamadaendif 566a44d806SMasahiro Yamada 576a44d806SMasahiro Yamadaalways += $(offsets-file) 586a44d806SMasahiro Yamadatargets += $(offsets-file) 59254d68b6SMasahiro Yamadatargets += arch/$(ARCH)/lib/asm-offsets.s 606a44d806SMasahiro Yamada 616a44d806SMasahiro YamadaCFLAGS_asm-offsets.o := -DDO_DEPS_ONLY 626a44d806SMasahiro Yamada 636a44d806SMasahiro Yamada# We use internal kbuild rules to avoid the "is up to date" message from make 64254d68b6SMasahiro Yamadaarch/$(ARCH)/lib/asm-offsets.s: arch/$(ARCH)/lib/asm-offsets.c FORCE 656a44d806SMasahiro Yamada $(Q)mkdir -p $(dir $@) 666a44d806SMasahiro Yamada $(call if_changed_dep,cc_s_c) 676a44d806SMasahiro Yamada 68*3a4f6b60SMichal Marek$(obj)/$(offsets-file): arch/$(ARCH)/lib/asm-offsets.s FORCE 69*3a4f6b60SMichal Marek $(call filechk,offsets,__ASM_OFFSETS_H__) 70