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