Add test for --add-debug-tag argument

Author: deadwood

tests/Makefile.am

@@ -40,7 +40,8 @@ src_TESTS = \
   set-empty-rpath.sh \
   phdr-corruption.sh \
   replace-needed.sh \
-  replace-add-needed.sh
+  replace-add-needed.sh \
+  add-debug-tag.sh
 
 build_TESTS = \
   $(no_rpath_arch_TESTS)

tests/add-debug-tag.sh

@@ -0,0 +1,26 @@
+#! /bin/sh -e
+SCRATCH=scratch/$(basename $0 .sh)
+
+rm -rf ${SCRATCH}
+mkdir -p ${SCRATCH}
+
+cp libsimple.so ${SCRATCH}/
+
+# check there is no DT_DEBUG tag
+debugTag=$(readelf -d ${SCRATCH}/libsimple.so)
+echo ".dynamic before: $debugTag"
+if echo "$debugTag" | grep -q DEBUG; then
+    echo "failed --add-debug-tag test. Expected no line with (DEBUG), got: $debugTag"
+    exit 1
+fi
+
+# set DT_DEBUG
+../src/patchelf --add-debug-tag ${SCRATCH}/libsimple.so
+
+# check there is DT_DEBUG tag
+debugTag=$(readelf -d ${SCRATCH}/libsimple.so)
+echo ".dynamic before: $debugTag"
+if ! echo "$debugTag" | grep -q DEBUG; then
+    echo "failed --add-debug-tag test. Expected line with (DEBUG), got: $debugTag"
+    exit 1
+fi