Hi All,
As a bit of a lark, I ran the following shell command:
grep -r -h -o -G "#define CONFIG.*" * | \ sed 's/#define[ \t]*//' | \ sed 's/^([A-Za-z0-9_]*).*/\1/' | \ sort -u > README.configuration.options
I then ran the result through the following script into README.configuration.options.counted
#!/bin/bash INPUT=doc/README.configuration.options
#!/bin/bash INPUT=doc/README.configuration.options
for i in `cat $INPUT` do grep -rcs --exclude-dir=doc '<'${i}'>' * | \ cut -d : -f 2 | \ awk '{sum+=$1} END {printf("%d\t%s\n", sum, f);}' f=$i done
The result? 5539 lines of pure configuration option goodness :)
Here's a little snippet:
6 CONFIG_100MHz 8 CONFIG_133MHZ_DRAM 7 CONFIG_300MHz 13 CONFIG_405 24 CONFIG_405CR 88 CONFIG_405EP 81 CONFIG_405EX
From this it is easy to find unused options (CONFIG_ARIA is found only as a
#define in include/configs/aria.h for example)
So my RFC is twofold: 1) Should we start to systematically remove unused options 2) Should we centralise all options in a single README (or two, one for standard CONFIG options and one for CONFIG_SYS options)?
Regards,
Graeme