Luis R. Rodriguez wrote:
Today at the summit we spoke about mangling symbols for driver-slect.
Here's a quick nasty take on this but without doing this for driver-select
specifically just for testing. It seems to compile, but someone more motivated
may want to test and make this apply somehow only for driver-select or perhaps
when a -D define is used.
Reason for this is to help distributions / OEMs / ODMs who want to replace
just *one* driver with compat-wireless.
I think it would be better to generate the list of mangled symbols
dynamically. In older Ubuntu releases (before depmod behavior was
corrected), we have to run a 'munge' script to preface all of the
exported symbols so that a compat-wireless driver references the
compat-wireless protocol stack symbols. See the attached munge script
for compat-wireless on 2.6.24. We can either do something like this for
compat-wireless, or we could use a subset of this logic to generate the
list of symbols contained within the '#ifdef
CONFIG_COMPAT_WIRELESS_MANGLE' clause.
rtg
--
Tim Gardner tim.gardner@xxxxxxxxxxxxx
#!/bin/bash
#
# Isolate the compat-wireless exported symbols and munge every occurence such that
# there is no possibility of conflict with the main kernel.
#
TL=token_list
FL=file_list
SL=sed_list
TL_EXCEPTIONS=token_list_exceptions
find compat-wireless-2.6 -name "*.[ch]" > ${FL}
rm -f ${TL_EXCEPTIONS}
for i in wireless_send_event iw_handler_set_spy wireless_spy_update iw_handler_get_thrspy iw_handler_get_spy iw_handler_set_thrspy
do
echo ${i} >> ${TL_EXCEPTIONS}
done
cat ${FL} | \
egrep -v "compat\.[ch]" |\
xargs grep -h EXPORT_SYMBOL | \
grep -v -f ${TL_EXCEPTIONS} |\
sed -e 's/^.*EXPORT_SYMBOL_GPL(//' -e 's/);//' -e 's/^.*EXPORT_SYMBOL(//' -e 's/);//' |\
sort -r | uniq > ${TL}
rm -f ${SL}
cat ${TL} | while read token
do
echo s/${token}/cw_${token}/g >> ${SL}
done
cat ${FL} | while read f
do
sed -i -f ${SL} "${f}"
done
rm -f ${TL} ${FL} ${SL} ${TL_EXCEPTIONS}
