Improve support for building for Android devices
The Android NDK is rather finicky, so handle it specially. The most important
part here is using --sysroot for CFLAGS and LDFLAGS.
diff --git a/COMPILE.TXT b/COMPILE.TXT
index 6d28a07..6c7f948 100644
--- a/COMPILE.TXT
+++ b/COMPILE.TXT
@@ -137,8 +137,11 @@
(5) Cross-compile for Android
To cross-compile for Android (smartphone/tablet), Android NDK is required.
+ NOTE: Only ARM and ARM64 are currently supported.
- $ ./make.sh cross-android
+ $ NDK=/android/android-ndk-r10e ./make.sh cross-android arm
+ or
+ $ NDK=/android/android-ndk-r10e ./make.sh cross-android arm64
Resulted files libcapstone.so, libcapstone.a & tests/test* can then
be used on Android devices.
diff --git a/make.sh b/make.sh
index 704c55f..9ff9217 100755
--- a/make.sh
+++ b/make.sh
@@ -22,12 +22,50 @@
CC="$IOS_CC" CFLAGS="$IOS_CFLAGS" LDFLAGS="$IOS_LDFLAGS" LIBARCHS="$IOS_ARCHS" ${MAKE}
}
+# build Android lib for only one supported architecture
+function build_android {
+ if [ -z "$NDK" ]; then
+ echo "ERROR! Please set \$NDK to point at your Android NDK directory."
+ exit 1
+ fi
+ HOSTOS=$(uname -s | tr 'LD' 'ld')
+ HOSTARCH=$(uname -m)
+
+ TARGARCH="$1"
+ shift
+
+ case "$TARGARCH" in
+ arm)
+ [ -n "$APILEVEL" ] || APILEVEL="android-14" # default to ICS
+ [ -n "$GCCVER" ] || GCCVER="4.8"
+ CROSS=arm-linux-androideabi-
+ ;;
+ arm64)
+ [ -n "$APILEVEL" ] || APILEVEL="android-21" # first with arm64
+ [ -n "$GCCVER" ] || GCCVER="4.9"
+ CROSS=aarch64-linux-android-
+ ;;
+
+ *)
+ echo "ERROR! Building for Android on $1 is not currently supported."
+ exit 1
+ ;;
+ esac
+
+ TOOLCHAIN="$NDK/toolchains/$CROSS$GCCVER/prebuilt/$HOSTOS-$HOSTARCH"
+ PLATFORM="$NDK/platforms/$APILEVEL/arch-$TARGARCH"
+
+ ${MAKE} clean
+
+ CROSS="$TOOLCHAIN/bin/$CROSS" CFLAGS="--sysroot=$PLATFORM" LDFLAGS="--sysroot=$PLATFORM" ${MAKE} $*
+}
+
+
function build {
if [ $(uname -s) = Darwin ]; then
export LIBARCHS="i386 x86_64"
fi
- ${MAKE} clean
if [ ${CC}x != x ]; then
${MAKE} CC=$CC $*
@@ -123,8 +161,7 @@
"cross-win64" ) CROSS=x86_64-w64-mingw32- build $*;;
"cygwin-mingw32" ) CROSS=i686-pc-mingw32- build $*;;
"cygwin-mingw64" ) CROSS=x86_64-w64-mingw32- build $*;;
- "cross-android" ) CROSS=arm-linux-androideabi- build $*;;
- "cross-android64" ) CROSS=aarch64-linux-gnu- build $*;;
+ "cross-android" ) build_android $*;;
"clang" ) CC=clang build $*;;
"gcc" ) CC=gcc build $*;;
"ios" ) build_iOS $*;;