[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_][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$/=y/;
	# print the line
	p
}
Commit	Line	Data
2f155f6c GL	1	#
	2	# Sed script to parse CPP macros and generate output usable by make
	3	#
	4	# It is expected that this script is fed the output of 'gpp -dM'
	5	# which preprocesses the common.h header files and outputs the final
	6	# list of CPP macros (and whitespace is sanitized)
	7	#
	8
	9	# Only process values prefixed with #define CONFIG_
02409f8c	10	/^#define CONFIG_[A-Za-z0-9_][A-Za-z0-9_]*/ {
2f155f6c GL	11	# Strip the #define prefix
	12	s/#define *//;
	13	# Change to form CONFIG_*=VALUE
02409f8c	14	s/ */=/;
2f155f6c GL	15	# Drop trailing spaces
	16	s/ *$//;
	17	# drop quotes around string values
	18	s/="\(.*\)"$/=\1/;
	19	# Concatenate string values
	20	s/" *"//g;
2bad5df7 WD	21	# Assume strings as default - add quotes around values
	22	s/=\(..*\)/="\1"/;
	23	# but remove again from decimal numbers
	24	s/="\([0-9][0-9]*\)"/=\1/;
	25	# ... and from hex numbers
	26	s/="\(0[Xx][0-9a-fA-F][0-9a-fA-F]*\)"/=\1/;
2979b263 BT	27	# ... and from configs defined from other configs
2979b263 BT	28	s/="\(CONFIG_[A-Za-z0-9_][A-Za-z0-9_]*\)"/=$(\1)/;
2f155f6c GL	29	# Change '1' and empty values to "y" (not perfect, but
	30	# supports conditional compilation in the makefiles
	31	s/=$/=y/;
	32	s/=1$/=y/;
	33	# print the line
	34	p
	35	}