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Diffstat (limited to 'roms/u-boot-sam460ex/tools/scripts/define2mk.sed')
-rw-r--r-- | roms/u-boot-sam460ex/tools/scripts/define2mk.sed | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/roms/u-boot-sam460ex/tools/scripts/define2mk.sed b/roms/u-boot-sam460ex/tools/scripts/define2mk.sed new file mode 100644 index 000000000..af40bfaf2 --- /dev/null +++ b/roms/u-boot-sam460ex/tools/scripts/define2mk.sed @@ -0,0 +1,29 @@ +# +# 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; + # Wrap non-numeral values with quotes + s/=\(.*\?[^0-9].*\)$/=\"\1\"/; + # Change '1' and empty values to "y" (not perfect, but + # supports conditional compilation in the makefiles + s/=$/=y/; + s/=1$/=y/; + # print the line + p +} |