Handle iOS gtest app bundles in copy_asan_runtime_dylib.sh

build/mac/copy_asan_runtime_dylib.sh

 #!/bin/bash
 
 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # For app bundles built with ASan, copies the runtime lib
 # (libclang_rt.asan_osx_dynamic.dylib), on which their executables depend, from
-# the compiler installation path to appname.app/Contents/Resources and fixes the
-# dylib's install name in the binary to be relative to @executable_path.
+# the compiler installation path into the bundle and fixes the dylib's install
+# name in the binary to be relative to @executable_path.
 
 set -e
 
 BINARY="${BUILT_PRODUCTS_DIR}/${EXECUTABLE_PATH}"
 BINARY_DIR="$(dirname "${BINARY}")"
 ASAN_DYLIB_NAME=libclang_rt.asan_osx_dynamic.dylib
 ASAN_DYLIB=$(find \
     "${BUILT_PRODUCTS_DIR}/../../third_party/llvm-build/Release+Asserts/lib/clang/" \
     -type f -path "*${ASAN_DYLIB_NAME}")
 
 # Find the link to the ASan runtime encoded in the binary.
 BUILTIN_DYLIB_PATH=$(otool -L "${BINARY}" | \
     sed -Ene 's/^[[:blank:]]+(.*libclang_rt\.asan_osx_dynamic\.dylib).*$/\1/p')
 
 if [[ -z "${BUILTIN_DYLIB_PATH}" ]]; then
   echo "${BINARY} does not depend on the ASan runtime library!" >&2
   # TODO(glider): make this return 1 when we fully switch to the dynamic
   # runtime in ASan.
   exit 0
 fi
 
 DYLIB_BASENAME=$(basename "${ASAN_DYLIB}")
 if [[ "${DYLIB_BASENAME}" != "${ASAN_DYLIB_NAME}" ]]; then
   echo "basename(${ASAN_DYLIB}) != ${ASAN_DYLIB_NAME}" >&2
   exit 1
 fi
 
-LIBRARIES_DIR="$(dirname "${BINARY_DIR}")/Libraries"
-mkdir -p "${LIBRARIES_DIR}"
+# Check whether the directory containing the executable binary is named
+# "MacOS". In this case we're building a full-fledged OSX app and will put
+# the runtime into appname.app/Contents/Libraries/. Otherwise this is probably
+# an iOS gtest app, and the ASan runtime is put next to the executable.
+UPPER_DIR=$(dirname "${BINARY_DIR}")
+if [ "${UPPER_DIR}" == "MacOS" ]; then
+  LIBRARIES_DIR="${UPPER_DIR}/Libraries"
+  mkdir -p "${LIBRARIES_DIR}"
+  NEW_LC_ID_DYLIB="@executable_path/../Libraries/${ASAN_DYLIB_NAME}"
+else
+  LIBRARIES_DIR="${BINARY_DIR}"
+  NEW_LC_ID_DYLIB="@executable_path/${ASAN_DYLIB_NAME}"
+fi
+
 cp "${ASAN_DYLIB}" "${LIBRARIES_DIR}"
 
-NEW_LC_ID_DYLIB="@executable_path/../Libraries/${ASAN_DYLIB_NAME}"
-
 # Make LC_ID_DYLIB of the runtime copy point to its location.
 install_name_tool \
     -id "${NEW_LC_ID_DYLIB}" \
     "${LIBRARIES_DIR}/${ASAN_DYLIB_NAME}"
 
 # Fix the rpath to the runtime library recorded in the binary.
 install_name_tool \
     -change "${BUILTIN_DYLIB_PATH}" \
     "${NEW_LC_ID_DYLIB}" \
     "${BINARY}"