Sorry about previous message.
The hex function in scripts/Configure strips the leading 0x from hex values.
The 0x needs to be there in autoconf.h, and stripping it out causes the
following problematic scenario:
If I start with a hex value in my config file like this:
CONFIG_LOWMEM_SIZE=0x40000000
and then run make oldconfig, it strips out the '0x' so I end up with this:
CONFIG_LOWMEM_SIZE=40000000
Then if I run make xconfig, it doesn't think this is a valid hex value, so it
replaces my value with the default:
CONFIG_LOWMEM_SIZE=0x20000000
The following patch removes the lines that strip out 0x, and inserts the 0x if
appropriate.
--- scripts/Configure.orig 2005-01-24 13:31:55.000000000 -0800
+++ scripts/Configure 2005-01-24 13:34:20.000000000 -0800
@@ -378,15 +378,18 @@
function hex () {
old=$(eval echo "\${$2}")
def=${old:-$3}
- def=${def#*[x,X]}
while :; do
readln "$1 ($2) [$def] " "$def" "$old"
- ans=${ans#*[x,X]}
- if expr "$ans" : '[0-9a-fA-F][0-9a-fA-F]*$' > /dev/null; then
- define_hex "$2" "0x$ans"
+ if expr "$ans" : '0x[0-9a-fA-F][0-9a-fA-F]*$' > /dev/null; then
+ define_hex "$2" "$ans"
break
else
- help "$2"
+ if expr "$ans" : '[0-9a-fA-F][0-9a-fA-F]*$' > /dev/null; then
+ define_hex "$2" "0x$ans"
+ break
+ else
+ help "$2"
+ fi
fi
done
}
-
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