From fc2ef3b240403cab969ffe07b02d359e996f6158 Mon Sep 17 00:00:00 2001
From: Bryan Drewery <bdrewery@FreeBSD.org>
Date: Fri, 1 May 2015 05:01:56 +0000
Subject: [PATCH] Add a -v to tell where each symbol is resolved from.

Sponsored by:	EMC / Isilon Storage Division
---
 tools/build/check-links.sh | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/build/check-links.sh b/tools/build/check-links.sh
index ba5d58bbfde..57c9437c025 100755
--- a/tools/build/check-links.sh
+++ b/tools/build/check-links.sh
@@ -20,9 +20,11 @@ libkey() {
 
 ret=0
 CHECK_UNRESOLVED=1
-while getopts "U" flag; do
+VERBOSE_RESOLVED=0
+while getopts "Uv" flag; do
 	case "${flag}" in
 		U) CHECK_UNRESOLVED=0 ;;
+		v) VERBOSE_RESOLVED=1 ;;
 	esac
 done
 shift $((OPTIND-1))
@@ -91,7 +93,12 @@ if [ ${CHECK_UNRESOLVED} -eq 1 ]; then
 			eval "lib_symbols=\"\${${libkey}}\""
 			# lib_symbols now contains symbols for the lib.
 			case " ${lib_symbols} " in
-				*\ ${sym}\ *) found=1 && break ;;
+				*\ ${sym}\ *)
+					[ ${VERBOSE_RESOLVED} -eq 1 ] &&
+					    echo "Resolved symbol ${sym} from ${lib}"
+					found=1
+					break
+					;;
 			esac
 		done
 		if [ $found -eq 0 ]; then