Add support for building the Dart VM for Android OS.

tools/android/envsetup.sh

Index: tools/android/envsetup.sh
diff --git a/tools/android/envsetup.sh b/tools/android/envsetup.sh
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+
+	#!/bin/bash
+
+# Copyright (c) 2012 The Dart Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Sets up environment for building Dart on Android. Only Android NDK,
+# Revision 8b on Linux or Mac is offically supported.
+#
+# To run this script, the system environment ANDROID_NDK_ROOT must be set
+# to Android NDK's root path.
+#
+# If current path isn't Dart's root directory, DART_ROOT must be set
+# to Dart's root directory.
+
+if [ ! -d "${ANDROID_NDK_ROOT}" ]; then
+  echo "ANDROID_NDK_ROOT must be set to the path of Android NDK, Revision 6b." \
+    >& 2
+  echo "which could be installed by" >& 2
+  echo "<chromium_tree>/src/build/install-build-deps-android-sdk.sh" >& 2
+  return 1
+fi
+
+if [ ! -d "${ANDROID_SDK_ROOT}" ]; then
+  echo "ANDROID_SDK_ROOT must be set to the path of Android SDK, Android 3.2." \
+    >& 2
+  echo "which could be installed by" >& 2
+  echo "<chromium_tree>/src/build/install-build-deps-android-sdk.sh" >& 2
+  return 1
+fi
+
+host_os=$(uname -s | sed -e 's/Linux/linux/;s/Darwin/mac/')
+
+case "${host_os}" in
+  "linux")
+    toolchain_dir="linux-x86"
+    ;;
+  "mac")
+    toolchain_dir="darwin-x86"
+    ;;
+  *)
+    echo "Host platform ${host_os} is not supported" >& 2
+    return 1
+esac
+
+TARGET_PRODUCT="x86"
+
+# The following defines will affect ARM code generation of both C/C++ compiler
+# and V8 mksnapshot.
+case "${TARGET_PRODUCT-full}" in
+  "full")
+    DEFINES=" target_arch=arm"
+    DEFINES+=" arm_neon=0 armv7=1 arm_thumb=1 arm_fpu=vfpv3-d16"
+    toolchain_arch="arm-linux-androideabi-4.4.3"
+    ;;
+  *x86*)
+    DEFINES=" target_arch=ia32 use_libffmpeg=0"
+    toolchain_arch="x86-4.4.3"
+    ;;
+  *)
+    echo "TARGET_PRODUCT: ${TARGET_PRODUCT} is not supported." >& 2
+    return 1
+esac
+
+# If we are building NDK/SDK, and in the upstream (open source) tree,
+# define a special variable for bringup purposes.
+case "${ANDROID_BUILD_TOP-undefined}" in
+  "undefined")
+    DEFINES+=" android_upstream_bringup=1"
+    ;;
+esac
+
+toolchain_path="${ANDROID_NDK_ROOT}/toolchains/${toolchain_arch}/prebuilt/"
+export ANDROID_TOOLCHAIN="${toolchain_path}/${toolchain_dir}/bin/"
+
+if [ ! -d "${ANDROID_TOOLCHAIN}" ]; then
+  echo "Can not find Android toolchain in ${ANDROID_TOOLCHAIN}." >& 2
+  echo "The NDK version might be wrong." >& 2
+  return 1
+fi
+
+export ANDROID_SDK_VERSION="9"
+
+# Needed by android antfiles when creating apks.
+export ANDROID_SDK_HOME=${ANDROID_SDK_ROOT}
+
+# Add Android SDK/NDK tools to system path.
+export PATH=$PATH:${ANDROID_NDK_ROOT}
+export PATH=$PATH:${ANDROID_SDK_ROOT}/tools
+export PATH=$PATH:${ANDROID_SDK_ROOT}/platform-tools
+# Must have tools like arm-linux-androideabi-gcc on the path for ninja
+export PATH=$PATH:${ANDROID_TOOLCHAIN}
+
+CURRENT_DIR="$(readlink -f ${PWD})"
+if [ -z "${DART_ROOT}" ]; then
+  # If $DART_ROOT was not set, assume current directory is DART_ROOT.
+  export DART_ROOT="${CURRENT_DIR}"
+fi
+
+if [ "${CURRENT_DIR/"${DART_ROOT}"/}" == "${CURRENT_DIR}" ]; then
+  # If current directory is not in $DART_ROOT, it might be set for other
+  # source tree. If $DART_ROOT was set correctly and we are in the correct
+  # directory, "${CURRENT_DIR/"${DART_ROOT}"/}" will be "".
+  # Otherwise, it will equal to "${CURRENT_DIR}"
+  echo "Warning: Current directory is out of DART_ROOT, it may not be \
+the one you want."
+  echo "${DART_ROOT}"
+fi
+
+if [ ! -d "${DART_ROOT}" ]; then
+  echo "DART_ROOT must be set to the path of Chrome source code." >& 2
+  return 1
+fi
+
+# Add Dart Android development scripts to system path.
+# Must be after DART_ROOT is set.
+export PATH=$PATH:${DART_ROOT}/tools/android
+
+ANDROID_GOMA_WRAPPER=""
+if [[ -d $GOMA_DIR ]]; then
+  ANDROID_GOMA_WRAPPER="$GOMA_DIR/gomacc"
+fi
+export ANDROID_GOMA_WRAPPER
+
+export CC_target=$(basename ${ANDROID_TOOLCHAIN}/*-gcc)
+export CXX_target=$(basename ${ANDROID_TOOLCHAIN}/*-g++)
+export LINK_target=$(basename ${ANDROID_TOOLCHAIN}/*-gcc)
+export AR_target=$(basename ${ANDROID_TOOLCHAIN}/*-ar)
+
+# Performs a gyp_chromium run to convert gyp->Makefile for android code.
+# android_gyp() {
+#  echo "GYP_GENERATORS set to '$GYP_GENERATORS'"
+#  "${DART_ROOT}/tools/generate_projects.py" "$@"
+# }
+
+export OBJCOPY=$(echo ${ANDROID_TOOLCHAIN}/*-objcopy)
+export STRIP=$(echo ${ANDROID_TOOLCHAIN}/*-strip)
+
+# The set of GYP_DEFINES to pass to gyp. Use 'readlink -e' on directories
+# to canonicalize them (remove double '/', remove trailing '/', etc).
+DEFINES+=" OS=android"
+DEFINES+=" android_build_type=0"
+DEFINES+=" host_os=${host_os}"
+DEFINES+=" linux_fpic=1"
+DEFINES+=" release_optimize=s"
+DEFINES+=" linux_use_tcmalloc=0"
+DEFINES+=" disable_nacl=1"
+DEFINES+=" remoting=0"
+DEFINES+=" p2p_apis=0"
+DEFINES+=" enable_touch_events=1"
+DEFINES+=" build_ffmpegsumo=0"
+DEFINES+=" gtest_target_type=shared_library"
+DEFINES+=" branding=Chromium"
+DEFINES+=\
+" android_sdk=${ANDROID_SDK_ROOT}/platforms/android-${ANDROID_SDK_VERSION}"
+DEFINES+=" android_sdk_tools=${ANDROID_SDK_ROOT}/platform-tools"
+
+export GYP_DEFINES="${DEFINES}"
+
+# Use the "android" flavor of the Makefile generator for both Linux and OS X.
+export GYP_GENERATORS="make-android"
+
+# Use our All target as the default
+export GYP_GENERATOR_FLAGS="${GYP_GENERATOR_FLAGS} default_target=All"
+
+# We want to use our version of "all" targets.
+# export CHROMIUM_GYP_FILE="${DART_ROOT}/build/all_android.gyp"