blob: c641edfb0194ba81195e930b668c6250c90072d8 [file] [log] [blame]
Grant Likely0f910192007-09-24 09:05:31 -06001#
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_
Marcel Moolenaar0760ff92008-02-22 10:48:07 -080010/^#define CONFIG_[A-Za-z0-9_][A-Za-z0-9_]*/ {
Grant Likely0f910192007-09-24 09:05:31 -060011 # Strip the #define prefix
12 s/#define *//;
13 # Change to form CONFIG_*=VALUE
Marcel Moolenaar0760ff92008-02-22 10:48:07 -080014 s/ */=/;
Grant Likely0f910192007-09-24 09:05:31 -060015 # Drop trailing spaces
16 s/ *$//;
17 # drop quotes around string values
18 s/="\(.*\)"$/=\1/;
19 # Concatenate string values
20 s/" *"//g;
Wolfgang Denkd52a7992010-10-16 23:50:51 +020021 # 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/;
Benoît Thébaudeau924e40c2013-04-11 09:35:48 +000027 # ... and from configs defined from other configs
28 s/="\(CONFIG_[A-Za-z0-9_][A-Za-z0-9_]*\)"/=$(\1)/;
Grant Likely0f910192007-09-24 09:05:31 -060029 # Change '1' and empty values to "y" (not perfect, but
30 # supports conditional compilation in the makefiles
31 s/=$/=y/;
32 s/=1$/=y/;
33 # print the line
34 p
35}