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68 lines
1.8 KiB
68 lines
1.8 KiB
# |
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# Kbuild for top-level directory of U-Boot |
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# This file takes care of the following: |
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# 1) Generate generic-asm-offsets.h |
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# 2) Generate asm-offsets.h |
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# Default sed regexp - multiline due to syntax constraints |
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define sed-y |
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"s:[[:space:]]*\.ascii[[:space:]]*\"\(.*\)\":\1:; \ |
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/^->/{s:->#\(.*\):/* \1 */:; \ |
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s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ |
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s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ |
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s:->::; p;}" |
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endef |
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# Use filechk to avoid rebuilds when a header changes, but the resulting file |
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# does not |
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define filechk_offsets |
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(set -e; \ |
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echo "#ifndef $2"; \ |
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echo "#define $2"; \ |
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echo "/*"; \ |
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echo " * DO NOT MODIFY."; \ |
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echo " *"; \ |
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echo " * This file was generated by Kbuild"; \ |
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echo " */"; \ |
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echo ""; \ |
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sed -ne $(sed-y); \ |
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echo ""; \ |
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echo "#endif" ) |
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endef |
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##### |
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# 1) Generate generic-asm-offsets.h |
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generic-offsets-file := include/generated/generic-asm-offsets.h |
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always := $(generic-offsets-file) |
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targets := lib/asm-offsets.s |
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# We use internal kbuild rules to avoid the "is up to date" message from make |
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lib/asm-offsets.s: lib/asm-offsets.c FORCE |
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$(Q)mkdir -p $(dir $@) |
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$(call if_changed_dep,cc_s_c) |
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$(obj)/$(generic-offsets-file): lib/asm-offsets.s FORCE |
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$(call filechk,offsets,__GENERIC_ASM_OFFSETS_H__) |
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##### |
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# 2) Generate asm-offsets.h |
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# |
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ifneq ($(wildcard $(srctree)/arch/$(ARCH)/lib/asm-offsets.c),) |
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offsets-file := include/generated/asm-offsets.h |
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endif |
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always += $(offsets-file) |
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targets += arch/$(ARCH)/lib/asm-offsets.s |
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CFLAGS_asm-offsets.o := -DDO_DEPS_ONLY |
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# We use internal kbuild rules to avoid the "is up to date" message from make |
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arch/$(ARCH)/lib/asm-offsets.s: arch/$(ARCH)/lib/asm-offsets.c FORCE |
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$(Q)mkdir -p $(dir $@) |
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$(call if_changed_dep,cc_s_c) |
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$(obj)/$(offsets-file): arch/$(ARCH)/lib/asm-offsets.s FORCE |
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$(call filechk,offsets,__ASM_OFFSETS_H__)
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