buildtools: prevent experimental symbol match on substring

The experimental symbol check script matched on the regexes
"\.text.*$SYM" and "\.text\.experimental.*$SYM" which allows for
substring matches.
If a symbol is leading substring of another one (e.g. symbol foo
is a substring of symbol foobar), it would match on symbols
when it shouldn't.

It is fixed by matching additionally on the end of line
so that symbols are an exact match.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>

diff --git a/buildtools/check-experimental-syms.sh b/buildtools/check-experimental-syms.sh
index 5bc8cda1762a000f90e8e658becd1ee1a53e3023..d0915102d484132f41291b3755b34d9ac0f13256 100755 (executable)
--- a/buildtools/check-experimental-syms.sh
+++ b/buildtools/check-experimental-syms.sh
@@ -16,9 +16,9 @@ for i in `awk 'BEGIN {found=0}
                /.*;/ {if (found == 1) print $1}' $MAPFILE`
 do
        SYM=`echo $i | sed -e"s/;//"`
-       objdump -t $OBJFILE | grep -q "\.text.*$SYM"
+       objdump -t $OBJFILE | grep -q "\.text.*$SYM$"
        IN_TEXT=$?
-       objdump -t $OBJFILE | grep -q "\.text\.experimental.*$SYM"
+       objdump -t $OBJFILE | grep -q "\.text\.experimental.*$SYM$"
        IN_EXP=$?
        if [ $IN_TEXT -eq 0 -a $IN_EXP -ne 0 ]
        then