Add regression tests for powerpc PIE endianness

Author: ratschance

tests/Makefile.am

@@ -25,6 +25,7 @@ src_TESTS = \
   force-rpath.sh \
   plain-needed.sh \
   output-flag.sh \
+  no-rpath-pie-powerpc.sh \
   build-id.sh
 
 build_TESTS = \

tests/no-rpath-pie-powerpc.sh

@@ -0,0 +1,54 @@
+#! /bin/sh -e
+set -x
+SCRATCH=scratch/no-rpath-pie-powerpc
+
+no_rpath_bin="${srcdir}/no-rpath-prebuild/no-rpath-pie-powerpc"
+
+if [ ! -f $no_rpath_bin ]; then
+  echo "no 'no-rpath' binary for '$ARCH' in '${srcdir}/no-rpath-prebuild'"
+  exit 1
+fi
+
+rm -rf ${SCRATCH}
+mkdir -p ${SCRATCH}
+
+cp $no_rpath_bin ${SCRATCH}/no-rpath
+
+oldRPath=$(../src/patchelf --print-rpath ${SCRATCH}/no-rpath)
+if test -n "$oldRPath"; then exit 1; fi
+../src/patchelf \
+  --set-interpreter "$(../src/patchelf --print-interpreter ../src/patchelf)" \
+  --set-rpath /foo:/bar:/xxxxxxxxxxxxxxx ${SCRATCH}/no-rpath
+
+newRPath=$(../src/patchelf --print-rpath ${SCRATCH}/no-rpath)
+if ! echo "$newRPath" | grep -q '/foo:/bar'; then
+    echo "incomplete RPATH"
+    exit 1
+fi
+
+# Tests for powerpc PIE endianness regressions
+readelfData=$(readelf -l ${SCRATCH}/no-rpath 2>&1)
+
+if [ $(echo "$readelfData" | grep --count "PHDR") != 1 ]; then
+  # Triggered if PHDR errors appear on stderr
+  echo "Unexpected number of occurences of PHDR in readelf results"
+  exit 1
+fi
+
+virtAddr=$(echo "$readelfData" | grep "PHDR" | awk '{print $3}')
+if [ "$virtAddr" != "0x00000034" ]; then
+  # Triggered if the virtual address is the incorrect endianness
+  echo "Unexpected virt addr, expected [0x00000034] got [$virtAddr]"
+  exit 1
+fi
+
+echo "$readelfData" | grep "LOAD" | while read -r line ; do
+  align=$(echo "$line" | awk '{print $NF}')
+  if [ "$align" != "0x10000" ]; then
+    # Triggered if the target arch was not detected properly
+    echo "Unexpected Align for LOAD segment, expected [0x10000] got [$align]"
+    echo "Load segment: [$line]"
+    exit 1
+  fi
+done
+