Switch to the "new" way of ASan deployment on Android devices.

tools/android/asan/asan_device_setup.sh

+#!/bin/bash
+# Copyright (c) 2014 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.
+
+# Prepare Android device to run ASan application.
+#
+# To revert this setup,
+#   adb remount
+#   adb shell mv /system/bin/app_process.real /system/bin/app_process
+#   adb shell rm /system/bin/asanwrapper
+#   adb shell rm /system/lib/libclang_rt.asan-arm-android.so
+
+HERE="$(cd "$(dirname "$0")" && pwd)"
+
+ADB=adb
+if [[ x$1 != x ]]; then

[Alexander Potapenko, 2014/01/17 12:43:50]

Better quote both operands.

+    ADB="adb -s $1"
+fi
+
+TMPDIR=$(mktemp -d)
+echo $TMPDIR
+
+ASAN_RT_PATH="$HERE"
+ASAN_RT="$ASAN_RT_PATH/libclang_rt.asan-arm-android.so"
+
+if ! [[ -f "$ASAN_RT" ]]; then
+    echo "ASan runtime library not found at $ASAN_RT"
+    exit 1
+fi
+
+echo '>> Remounting /system rw'
+$ADB remount
+
+echo '>> Copying files from the device'
+$ADB pull /system/bin/app_process "$TMPDIR/app_process"
+$ADB pull /system/bin/app_process.real "$TMPDIR/app_process.real"
+
+if ! [[ -f "$TMPDIR/app_process" ]]; then
+    echo "app_process missing???"
+    exit 1
+fi
+
+if [[ -f "$TMPDIR/app_process.real" ]]; then
+    echo "app_process.real exists, updating the wrapper"
+else
+    echo "app_process.real missing, new installation"
+    mv "$TMPDIR/app_process" "$TMPDIR/app_process.real"
+fi
+
+echo '>> Generating wrappers'
+cat <<EOF >"$TMPDIR/app_process"
+#!/system/bin/sh
+ASAN_OPTIONS=strict_memcmp=0,malloc_context_size=3,start_deactivated=1 \\
+LD_PRELOAD=libclang_rt.asan-arm-android.so \\
+exec /system/bin/app_process.real \$@
+
+EOF
+
+cat <<EOF >"$TMPDIR/asanwrapper"
+#!/system/bin/sh
+ASAN_OPTIONS=strict_memcmp=0 \
+LD_PRELOAD=libclang_rt.asan-arm-android.so \
+exec \$@
+
+EOF
+
+echo '>> Pushing files to the device'
+$ADB push "$ASAN_RT" /system/lib/
+$ADB push "$TMPDIR/app_process" /system/bin/app_process
+$ADB push "$TMPDIR/app_process.real" /system/bin/app_process.real
+$ADB push "$TMPDIR/asanwrapper" /system/bin/asanwrapper
+$ADB shell chown root.shell \
+    /system/bin/app_process \
+    /system/bin/app_process.real \
+    /system/bin/asanwrapper
+$ADB shell chmod 755 \
+    /system/bin/app_process \
+    /system/bin/app_process.real \
+    /system/bin/asanwrapper
+
+rm -r "$TMPDIR"