build: add suport for x86 architecture

Modified android-configure script to support also x86 arch.
Currently added support only for ia32 target arch.
Also, compile openssl without asm, since using the asm sources will make
node fail to run on Android, because it adds text relocations.

Signed-off-by: Robert Chiras <robert.chiras@intel.com>
PR-URL: https://github.com/nodejs/node/pull/5544
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

android-configure

@@ -1,18 +1,49 @@
 #!/bin/bash
 
+if [ -z "$2" ]; then
+    ARCH=arm
+else
+    ARCH="$2"
+fi
+
+CC_VER="4.9"
+case $ARCH in
+    arm)
+        DEST_CPU="$ARCH"
+        SUFFIX="$ARCH-linux-androideabi"
+        TOOLCHAIN_NAME="$SUFFIX"
+        ;;
+    x86)
+        DEST_CPU="ia32"
+        SUFFIX="i686-linux-android"
+        TOOLCHAIN_NAME="$ARCH"
+        ;;
+    x86_64)
+        DEST_CPU="ia32"
+        SUFFIX="$ARCH-linux-android"
+        TOOLCHAIN_NAME="$ARCH"
+        ;;
+    *)
+        echo "Unsupported architecture provided: $ARCH"
+        exit 1
+        ;;
+esac
+
 export TOOLCHAIN=$PWD/android-toolchain
 mkdir -p $TOOLCHAIN
 $1/build/tools/make-standalone-toolchain.sh \
-    --toolchain=arm-linux-androideabi-4.9 \
-    --arch=arm \
+    --toolchain=$TOOLCHAIN_NAME-$CC_VER \
+    --arch=$ARCH \
     --install-dir=$TOOLCHAIN \
     --platform=android-21
 export PATH=$TOOLCHAIN/bin:$PATH
-export AR=$TOOLCHAIN/bin/arm-linux-androideabi-ar
-export CC=$TOOLCHAIN/bin/arm-linux-androideabi-gcc
-export CXX=$TOOLCHAIN/bin/arm-linux-androideabi-g++
-export LINK=$TOOLCHAIN/bin/arm-linux-androideabi-g++
+export AR=$TOOLCHAIN/bin/$SUFFIX-ar
+export CC=$TOOLCHAIN/bin/$SUFFIX-gcc
+export CXX=$TOOLCHAIN/bin/$SUFFIX-g++
+export LINK=$TOOLCHAIN/bin/$SUFFIX-g++
 
 ./configure \
-    --dest-cpu=arm \
-    --dest-os=android
+    --dest-cpu=$DEST_CPU \
+    --dest-os=android \
+    --without-snapshot \
+    --openssl-no-asm

common.gypi

@@ -70,6 +70,10 @@
             'cflags': [ '-gxcoff' ],
             'ldflags': [ '-Wl,-bbigtoc' ],
           }],
+          ['OS == "android"', {
+            'cflags': [ '-fPIE' ],
+            'ldflags': [ '-fPIE', '-pie' ]
+          }]
         ],
         'msvs_settings': {
           'VCCLCompilerTool': {
@@ -103,6 +107,10 @@
           ['OS!="mac" and OS!="win"', {
             'cflags': [ '-fno-omit-frame-pointer' ],
           }],
+          ['OS == "android"', {
+            'cflags': [ '-fPIE' ],
+            'ldflags': [ '-fPIE', '-pie' ]
+          }]
         ],
         'msvs_settings': {
           'VCCLCompilerTool': {