Merge #478

478: Run shellcheck on all tests r=Mic92 a=brenoguim



Co-authored-by: Breno Rodrigues Guimaraes <brenorg@gmail.com>

.github/workflows/ci.yml

@@ -3,6 +3,11 @@ on:
   pull_request:
   push:
 jobs:
+  shellcheck:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - run: shellcheck tests/*.sh
   nix:
     runs-on: ubuntu-latest
     steps:

tests/endianness.sh

@@ -6,7 +6,7 @@ for arch in ppc64 ppc64le; do
     rm -rf "${SCRATCH}"
     mkdir -p "${SCRATCH}"
 
-    cp "${srcdir}/endianness/${arch}/main" "${srcdir}/endianness/${arch}/libtest.so" "${SCRATCH}/"
+    cp "${srcdir:?}/endianness/${arch}/main" "${srcdir}/endianness/${arch}/libtest.so" "${SCRATCH}/"
 
     rpath="${PWD}/${SCRATCH}"
 

tests/modify-execstack.sh

@@ -1,16 +1,16 @@
 #! /bin/sh -e
-SCRATCH=scratch/$(basename $0 .sh)
+SCRATCH=scratch/$(basename "$0" .sh)
 PATCHELF=$(readlink -f "../src/patchelf")
 
-rm -rf ${SCRATCH}
-mkdir -p ${SCRATCH}
+rm -rf "${SCRATCH}"
+mkdir -p "${SCRATCH}"
 
-cp simple ${SCRATCH}/
-cp simple-execstack ${SCRATCH}/
-cp libsimple.so ${SCRATCH}/
-cp libsimple-execstack.so ${SCRATCH}/
+cp simple "${SCRATCH}"/
+cp simple-execstack "${SCRATCH}"/
+cp libsimple.so "${SCRATCH}"/
+cp libsimple-execstack.so "${SCRATCH}"/
 
-cd ${SCRATCH}
+cd "${SCRATCH}"
 
 
 ## simple

tests/no-rpath-pie-powerpc.sh

@@ -3,17 +3,17 @@ set -x
 SCRATCH=scratch/no-rpath-pie-powerpc
 READELF=${READELF:-readelf}
 
-no_rpath_bin="${srcdir}/no-rpath-prebuild/no-rpath-pie-powerpc"
+no_rpath_bin="${srcdir:?}/no-rpath-prebuild/no-rpath-pie-powerpc"
 
-if [ ! -f $no_rpath_bin ]; then
-  echo "no 'no-rpath' binary for '$ARCH' in '${srcdir}/no-rpath-prebuild'"
+if [ ! -f "$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 ${SCRATCH}/no-rpath
+cp "$no_rpath_bin" ${SCRATCH}/no-rpath
 
 oldRPath=$(../src/patchelf --print-rpath ${SCRATCH}/no-rpath)
 if test -n "$oldRPath"; then exit 1; fi
@@ -30,7 +30,7 @@ fi
 # Tests for powerpc PIE endianness regressions
 readelfData=$(${READELF} -l ${SCRATCH}/no-rpath 2>&1)
 
-if [ $(echo "$readelfData" | grep "PHDR" | wc -l) != 1 ]; then
+if [ "$(echo "$readelfData" | grep -c "PHDR")" != 1 ]; then
   # Triggered if PHDR errors appear on stderr
   echo "Unexpected number of occurences of PHDR in readelf results"
   exit 1

tests/no-rpath-prebuild.sh

@@ -14,10 +14,10 @@ if [ -z "$ARCH" ] || [ "$ARCH" = prebuild ] ; then
   exit 1
 fi
 
-no_rpath_bin="${srcdir}/no-rpath-prebuild/no-rpath-$ARCH"
+no_rpath_bin="${srcdir:?}/no-rpath-prebuild/no-rpath-$ARCH"
 
 if [ ! -f "$no_rpath_bin" ]; then
-  echo "no 'no-rpath' binary for '$ARCH' in '${srcdir}/no-rpath-prebuild'"
+  echo "no 'no-rpath' binary for '$ARCH' in '${srcdir:?}/no-rpath-prebuild'"
   exit 1
 fi
 

tests/overlapping-segments-after-rounding.sh

@@ -10,7 +10,7 @@ if test "$(uname -i)" = x86_64 && test "$(uname)" = Linux; then
     rm -rf "${SCRATCH}"
     mkdir -p "${SCRATCH}"
 
-    cp "${srcdir}/${EXEC_NAME}" "${SCRATCH}/"
+    cp "${srcdir:?}/${EXEC_NAME}" "${SCRATCH}/"
     cd "${SCRATCH}"
 
     ${PATCHELF} --force-rpath --remove-rpath --output modified1 "${EXEC_NAME}"

tests/phdr-corruption.sh

@@ -15,7 +15,7 @@ cp "${SONAME}" "${SCRATCH}"
 # Check for PT_PHDR entry VirtAddr corruption
 readelfData=$(${READELF} -l "${SCRATCH_SO}" 2>&1)
 
-if [ "$(echo "$readelfData" | grep "PHDR" | wc -l)" != 1 ]; then
+if [ "$(echo "$readelfData" | grep -c "PHDR")" != 1 ]; then
   # Triggered if PHDR errors appear on stderr
   echo "ERROR: Unexpected number of occurences of PHDR in readelf results!"
   exit 1

tests/print-execstack.sh

@@ -1,14 +1,14 @@
 #! /bin/sh -e
-SCRATCH=scratch/$(basename $0 .sh)
+SCRATCH=scratch/$(basename "$0" .sh)
 PATCHELF=$(readlink -f "../src/patchelf")
 
-rm -rf ${SCRATCH}
-mkdir -p ${SCRATCH}
+rm -rf "${SCRATCH}"
+mkdir -p "${SCRATCH}"
 
-cp simple ${SCRATCH}/
-cp simple-execstack ${SCRATCH}/
+cp simple "${SCRATCH}"/
+cp simple-execstack "${SCRATCH}"/
 
-cd ${SCRATCH}
+cd "${SCRATCH}"
 
 if ! ${PATCHELF} --print-execstack simple | grep -q 'execstack: -'; then
 	echo "wrong execstack detection"

tests/rename-dynamic-symbols.sh

@@ -1,17 +1,17 @@
 #!/bin/sh -e
-SCRATCH=scratch/$(basename $0 .sh)
+SCRATCH=scratch/$(basename "$0" .sh)
 PATCHELF=$(readlink -f "../src/patchelf")
 
-rm -rf ${SCRATCH}
-mkdir -p ${SCRATCH}
+rm -rf "${SCRATCH}"
+mkdir -p "${SCRATCH}"
 
 full_main_name="${PWD}/many-syms-main"
 full_lib_name="${PWD}/libmany-syms.so"
-chmod -w $full_lib_name $full_main_name
+chmod -w "$full_lib_name" "$full_main_name"
 
 suffix="_special_suffix"
 
-cd ${SCRATCH}
+cd "${SCRATCH}"
 
 ###############################################################################
 # Test that all symbols in the dynamic symbol table will have the expected
@@ -20,16 +20,16 @@ cd ${SCRATCH}
 ###############################################################################
 
 list_symbols() {
-    nm -D $@ | awk '{ print $NF }' | sed '/^ *$/d'
+    nm -D "$@" | awk '{ print $NF }' | sed '/^ *$/d'
 }
 
-list_symbols $full_lib_name | cut -d@ -f1 | sort -u | awk "{printf \"%s %s${suffix}\n\",\$1,\$1}" > map
-list_symbols $full_lib_name | cut -d@ -f1 | sort -u | awk "{printf \"%s${suffix} %s\n\",\$1,\$1}" > rmap
+list_symbols "$full_lib_name" | cut -d@ -f1 | sort -u | awk "{printf \"%s %s${suffix}\n\",\$1,\$1}" > map
+list_symbols "$full_lib_name" | cut -d@ -f1 | sort -u | awk "{printf \"%s${suffix} %s\n\",\$1,\$1}" > rmap
 
-${PATCHELF} --rename-dynamic-symbols map --output libmapped.so $full_lib_name
+${PATCHELF} --rename-dynamic-symbols map --output libmapped.so "$full_lib_name"
 ${PATCHELF} --rename-dynamic-symbols rmap --output libreversed.so libmapped.so
 
-list_symbols $full_lib_name | sort > orig_syms
+list_symbols "$full_lib_name" | sort > orig_syms
 list_symbols libmapped.so | sort > map_syms
 list_symbols libreversed.so | sort > rev_syms
 
@@ -47,10 +47,10 @@ diff orig_syms map_syms_r > diff_orig_syms_map_syms_r || exit 1
 ###############################################################################
 
 print_relocation_table() {
-    readelf -W -r $1 | awk '{ printf "%s\n",$5 }' | cut -f1 -d@
+    readelf -W -r "$1" | awk '{ printf "%s\n",$5 }' | cut -f1 -d@
 }
 
-print_relocation_table $full_lib_name > orig_rel
+print_relocation_table "$full_lib_name" > orig_rel
 print_relocation_table libmapped.so > map_rel
 print_relocation_table libreversed.so > rev_rel
 
@@ -69,19 +69,19 @@ diff orig_rel map_rel_r > diff_orig_rel_map_rel_r || exit 1
 ###############################################################################
 
 echo "# Create the map"
-list_symbols --defined-only $full_lib_name | cut -d@ -f1 | sort -u | awk "{printf \"%s %s${suffix}\n\",\$1,\$1}" > map
+list_symbols --defined-only "$full_lib_name" | cut -d@ -f1 | sort -u | awk "{printf \"%s %s${suffix}\n\",\$1,\$1}" > map
 
 echo "# Copy all dependencies"
 mkdir env
 cd env
-cp $full_lib_name $full_main_name .
+cp "$full_lib_name" "$full_main_name" .
 
 echo "# Apply renaming"
-chmod +w *
-${PATCHELF} --rename-dynamic-symbols ../map *
+chmod +w ./*
+${PATCHELF} --rename-dynamic-symbols ../map ./*
 
 echo "# Run the patched tool and libraries"
-env LD_BIND_NOW=1 LD_LIBRARY_PATH=${PWD} ./many-syms-main
+env LD_BIND_NOW=1 LD_LIBRARY_PATH="${PWD}" ./many-syms-main
 
 # Test that other switches still work when --rename-dynamic-symbols has no effect
 echo "SYMBOL_THAT_DOESNT_EXIST ANOTHER_NAME" > map