Upstream: Set build target and evnvironment for Android

build/android/envsetup.sh

+#!/bin/bash
+# Copyright (c) 2011 The Chromium Authors. All rights reserved.

[Mark Mentovai, 2011/09/26 19:02:35]

Blank line (no #) before this one.

[michaelbai, 2011/09/26 21:08:32]

Done.

+# 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 Chromium on Android. Only Android NDK,
+# Revision 6b 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.
+#
+# TODO(michaelbai): Develop a standard for NDK/SDK integration.
+#
+# If current path isn't the Chrome's src directory, CHROME_SRC must be set
+# to the Chrome's src directory.
+
+if [ ! -d "$ANDROID_NDK_ROOT" ]; then

[Mark Mentovai, 2011/09/26 19:02:35]

Please revise this file to use ${ANDROID_NDK_ROOT} and the like for all variable
expansions.

[michaelbai, 2011/09/26 21:08:32]

Done.

+  echo "ANDROID_NDK_ROOT must be set to the path of Android NDK, Revision 6b."
+  echo "which could be downloaded from"
+  echo "http://developer.android.com/sdk/ndk/index.html"
+  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 $host_os is not supported"
+    return 1
+esac
+
+export ANDROID_TOOLCHAIN="$ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-4.4.3/prebuilt/$toolchain_dir/bin/"
+
+if [ ! -d "$ANDROID_TOOLCHAIN" ]; then
+  echo "Can not find Android toolchain in $ANDROID_TOOLCHAIN."
+  echo "The NDK version might be wrong."
+  return 1
+fi
+
+if [ -z "$CHROME_SRC" ]; then
+  # if $CHROME_SRC was not set, assume current directory is CHROME_SRC.
+  export CHROME_SRC=$(pwd)
+fi
+
+if [ ! -d "$CHROME_SRC" ]; then
+  echo "CHROME_SRC must be set to the path of Chrome source code."
+  return 1
+fi
+
+make() {
+  # TODO(michaelbai): how to use ccache in NDK.
+  if [ -n "$USE_CCACHE" ]; then
+    if [ -e "$PREBUILT_CCACHE_PATH" ]; then
+      use_ccache_var="$PREBUILT_CCACHE_PATH "
+    else
+      use_ccache_var=""
+    fi
+  fi
+  if [ -f "$PWD/build/android/envsetup.sh" ]; then
+    CC="$use_ccache_var$CROSS_CC" CXX="$use_ccache_var$CROSS_CXX" \
+    LINK="$CROSS_LINK" AR="$CROSS_AR" RANLIB="$CROSS_RANLIB" \
+      command make $*
+  else
+    command make $*
+  fi
+}
+
+# Performs a gyp_chromium run to convert gyp->Makefile for android code.
+android_gyp() {
+  "$CHROME_SRC"/build/gyp_chromium --depth="$CHROME_SRC"
+}
+
+LS="/bin/ls"  # Use directly to avoid any 'ls' alias that might be defined.
+export CROSS_AR="$($LS ${ANDROID_TOOLCHAIN}/*-ar | head -n1)"

[Mark Mentovai, 2011/09/26 19:02:35]

${LS} should be quoted.

${ANDROID_TOOLCHAIN} should be quoted, but the quotes should not include the *.

Actually, the LS and head should be unnecessary. Write a function like this:

firstword() {
  echo "${0}"
}

And then use it like this:

export CROSS_AR=$(firstword "${ANDROID_TOOLCHAIN}"/*-ar)

[michaelbai, 2011/09/26 21:08:32]

Done.

+export CROSS_CC="$($LS ${ANDROID_TOOLCHAIN}/*-gcc | head -n1)"
+export CROSS_CXX="$($LS ${ANDROID_TOOLCHAIN}/*-g++ | head -n1)"
+export CROSS_LINK="$($LS ${ANDROID_TOOLCHAIN}/*-gcc | head -n1)"
+export CROSS_RANLIB="$($LS ${ANDROID_TOOLCHAIN}/*-ranlib | head -n1)"
+export OBJCOPY="$($LS ${ANDROID_TOOLCHAIN}/*-objcopy | head -n1)"
+export STRIP="$($LS ${ANDROID_TOOLCHAIN}/*-strip | head -n1)"
+
+# The set of GYP_DEFINES to pass to gyp. Use 'readlink -e' on directories
+# to canonicalize them (remove double '/', remove trailing '/', etc).
+DEFINES="OS=android"
+DEFINES="${DEFINES} android_build_type=0"  # Currently, Only '0' is supportted.

[Mark Mentovai, 2011/09/26 19:02:35]

Instead of doing

DEFINES="${DEFINES} whatever"

you can write this

DEFINES+=" whatever"

[michaelbai, 2011/09/26 21:08:32]

Done.

+DEFINES="${DEFINES} host_os=${host_os}"
+DEFINES="${DEFINES} linux_fpic=1"
+DEFINES="${DEFINES} release_optimize=s"
+DEFINES="${DEFINES} linux_use_tcmalloc=0"
+DEFINES="${DEFINES} disable_nacl=1"
+DEFINES="${DEFINES} remoting=0"
+DEFINES="${DEFINES} p2p_apis=0"
+DEFINES="${DEFINES} enable_touch_events=1"
+# TODO(bulach): use "shared_libraries" once the transition from executable
+# is over.
+DEFINES="${DEFINES} gtest_target_type=executable"
+DEFINES="${DEFINES} branding=Chromium"
+
+# If the TARGET_PRODUCT wasn't set, use 'full' by default.
+if [ -z "$TARGET_PRODUCT" ]; then
+  TARGET_PRODUCT="full"
+fi
+
+# The following defines will affect ARM code generation of both C/C++ compiler
+# and V8 mksnapshot.
+case "${TARGET_PRODUCT}" in
+  "full")
+    DEFINES="${DEFINES} target_arch=arm"
+    DEFINES="${DEFINES} arm_neon=0 armv7=0 arm_thumb=1 arm_fpu=vfp"
+    ;;
+   *x86*)

[Mark Mentovai, 2011/09/26 19:02:35]

Things are starting to get a little weird on the indentation through this case
block.

[michaelbai, 2011/09/26 21:08:32]

Fixed the indentation.

+    DEFINES="${DEFINES} target_arch=ia32 use_libffmpeg=0"
+    ;;
+   *)
+     echo "TARGET_PRODUCT:${TARGET_PRODUCT} is not supported."
+     return 1
+esac
+
+export GYP_DEFINES="$DEFINES"
+
+# Use the "android" flavor of the Makefile generator for both Linux and OS X.
+export GYP_GENERATORS="make-android"
+
+# We want to use our version of "all" targets.
+export CHROMIUM_GYP_FILE="${CHROME_SRC}/build/all_android.gyp"
+

[Mark Mentovai, 2011/09/26 19:02:35]

Get rid of these two blank lines at EOF.

[michaelbai, 2011/09/26 21:08:32]

Done.

+