Remove CONFIG_SYS_BOOTCOUNT_SINGLEWORD
[people/ms/u-boot.git] / Kbuild
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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
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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
6a44d806 15
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16# Use filechk to avoid rebuilds when a header changes, but the resulting file
17# does not
18define filechk_offsets
6a44d806 19 (set -e; \
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20 echo "#ifndef $2"; \
21 echo "#define $2"; \
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22 echo "/*"; \
23 echo " * DO NOT MODIFY."; \
24 echo " *"; \
25 echo " * This file was generated by Kbuild"; \
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26 echo " */"; \
27 echo ""; \
3a4f6b60 28 sed -ne $(sed-y); \
6a44d806 29 echo ""; \
3a4f6b60 30 echo "#endif" )
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31endef
32
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33#####
34# 1) Generate generic-asm-offsets.h
35
36generic-offsets-file := include/generated/generic-asm-offsets.h
37
38always := $(generic-offsets-file)
ba84de9f 39targets := lib/asm-offsets.s
490cf5f0 40
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41# We use internal kbuild rules to avoid the "is up to date" message from make
42lib/asm-offsets.s: lib/asm-offsets.c FORCE
43 $(Q)mkdir -p $(dir $@)
44 $(call if_changed_dep,cc_s_c)
45
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46$(obj)/$(generic-offsets-file): lib/asm-offsets.s FORCE
47 $(call filechk,offsets,__GENERIC_ASM_OFFSETS_H__)
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48
49#####
50# 2) Generate asm-offsets.h
51#
52
254d68b6 53ifneq ($(wildcard $(srctree)/arch/$(ARCH)/lib/asm-offsets.c),)
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54offsets-file := include/generated/asm-offsets.h
55endif
56
57always += $(offsets-file)
254d68b6 58targets += arch/$(ARCH)/lib/asm-offsets.s
6a44d806 59
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60CFLAGS_asm-offsets.o := -DDO_DEPS_ONLY
61
6a44d806 62# We use internal kbuild rules to avoid the "is up to date" message from make
254d68b6 63arch/$(ARCH)/lib/asm-offsets.s: arch/$(ARCH)/lib/asm-offsets.c FORCE
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64 $(Q)mkdir -p $(dir $@)
65 $(call if_changed_dep,cc_s_c)
66
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67$(obj)/$(offsets-file): arch/$(ARCH)/lib/asm-offsets.s FORCE
68 $(call filechk,offsets,__ASM_OFFSETS_H__)