[dpdk-dev] [PATCH] check-experimental-syms.sh: prevent symbol matches on substrings

[Neil Horman <nhorman@tuxdriver.com>]

Thomas attempted to submit this:
https://patches.dpdk.org/patch/46311/

The other day, because the other patches being submitted with it were
breaking on a false positive from the check-experimental-syms check.

The problem was that the experimental symbol check script matched on the
regexs "\.text.*$SYM" and "\.text\.experimental.*$SYM" which allows for
substring matches, and librte_ethdev recently introduced symbols that
are leading substrings of one another (e.g. symbol foo is a substring of
symbol foobar), and so we would match on symbols when we shouldn't

Instead of dropping the check, fix this properly by matching
additionally on the end of line so that symbols are an exact match.

Confirmed to build properly on Thomas' submitted patch set with the
experimental check patch reverted (so that the checking actually
happens)

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Thomas Monjalon <thomas@monjalon.net>
CC: Ferruh Yigit <ferruh.yigit@intel.com>
---
 buildtools/check-experimental-syms.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/buildtools/check-experimental-syms.sh b/buildtools/check-experimental-syms.sh
index 5bc8cda17..d0915102d 100755
--- 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
-- 
2.17.1