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37 lines
1.1 KiB
37 lines
1.1 KiB
# |
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# Sed script to parse CPP macros and generate output usable by make |
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# |
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# It is expected that this script is fed the output of 'gpp -dM' |
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# which preprocesses the common.h header files and outputs the final |
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# list of CPP macros (and whitespace is sanitized) |
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# |
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# Only process values prefixed with #define CONFIG_ |
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/^#define CONFIG_[A-Za-z0-9_][A-Za-z0-9_]*/ { |
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# Strip the #define prefix |
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s/#define *//; |
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# Change to form CONFIG_*=VALUE |
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s/ */=/; |
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# Drop trailing spaces |
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s/ *$//; |
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# drop quotes around string values |
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s/="\(.*\)"$/=\1/; |
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# Concatenate string values |
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s/" *"//g; |
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# Assume strings as default - add quotes around values |
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s/=\(..*\)/="\1"/; |
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# but remove again from decimal numbers |
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s/="\([0-9][0-9]*\)"/=\1/; |
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# ... and from negative decimal numbers |
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s/="\(-[1-9][0-9]*\)"/=\1/; |
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# ... and from hex numbers |
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s/="\(0[Xx][0-9a-fA-F][0-9a-fA-F]*\)"/=\1/; |
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# ... and from configs defined from other configs |
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s/="\(CONFIG_[A-Za-z0-9_][A-Za-z0-9_]*\)"/=$(\1)/; |
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# Change '1' and empty values to "y" (not perfect, but |
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# supports conditional compilation in the makefiles |
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s/=$/=y/; |
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s/=1$/=y/; |
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# print the line |
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p |
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}
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