| # | |
| # 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 | |
| } |