:: commit b15b59659c2da81f89fb9e6776dc640791e52829

diff --git a/common/gensyms.sh b/common/gensyms.sh
index db66d053..8e6aa8db 100755
--- a/common/gensyms.sh
+++ b/common/gensyms.sh
@@ -29,8 +29,8 @@ TMP4="$(mktemp)"
 trap "rm -f '$TMP1' '$TMP2' '$TMP3' '$TMP4'; trap - EXIT; exit" EXIT INT TERM QUIT HUP
 
 "$OBJDUMP_FOR_TARGET" -t "$1" | ( "$SED" '/[[:<:]]d[[:>:]]/d' 2>/dev/null || "$SED" '/\bd\b/d' ) | sort > "$TMP1"
-"$GREP" "$4" < "$TMP1" | cut -d' ' -f1 > "$TMP2"
-"$GREP" "$4" < "$TMP1" | "$AWK" 'NF{ print $NF }' > "$TMP3"
+"$GREP" "F $4" < "$TMP1" | cut -d' ' -f1 > "$TMP2"
+"$GREP" "F $4" < "$TMP1" | "$AWK" 'NF{ print $NF }' > "$TMP3"
 
 echo ".section .$2_map" > "$TMP4"
 echo ".globl $2_map" >> "$TMP4"