[thirdparty/u-boot.git] / tools / scripts / define2mk.sed

#
# 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_]\+/ {
	# 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$/=y/;
	# print the line
	p
}
Commit	Line	Data
2f155f6c GL	1	#
	2	# Sed script to parse CPP macros and generate output usable by make
	3	#
	4	# It is expected that this script is fed the output of 'gpp -dM'
	5	# which preprocesses the common.h header files and outputs the final
	6	# list of CPP macros (and whitespace is sanitized)
	7	#
	8
	9	# Only process values prefixed with #define CONFIG_
	10	/^#define CONFIG_[A-Za-z0-9_]\+/ {
	11	# Strip the #define prefix
	12	s/#define *//;
	13	# Change to form CONFIG_*=VALUE
	14	s/ \+/=/;
	15	# Drop trailing spaces
	16	s/ *$//;
	17	# drop quotes around string values
	18	s/="\(.*\)"$/=\1/;
	19	# Concatenate string values
	20	s/" *"//g;
	21	# Wrap non-numeral values with quotes
	22	s/=\(.\?[^0-9].\)$/=\"\1\"/;
	23	# Change '1' and empty values to "y" (not perfect, but
	24	# supports conditional compilation in the makefiles
	25	s/=$/=y/;
	26	s/=1$/=y/;
	27	# print the line
	28	p
	29	}