On Apr 14, 2015, at 10:11 AM, Nathan of Guardian wrote:
>
>
> On Tue, Apr 14, 2015, at 06:58 AM, Michael Rogers wrote:
>> On 13/04/15 14:55, Nathan of Guardian wrote:
>>> Making some tiny changes to external/Makefile and jni/Application.mk
>>> means we can now build the tor, polipo and xtables binaries, along with
>>> the tun2socks.so for any necessary chip architecture. I've added support
>>> for x86 in this release, which only added a few MB to the overall APK.
>>
>> Very cool! It looks like RC3 only includes PIE binaries, is that right?
>
> Yes, for now I have focused on PIE/Android-16 and up, and prioritized
> getting x86 support before worrying about non-PIE. I also need to handle
> devices that don't support the VPN API.
>
>> By the way, you can reduce the APK size a little by stripping the
>> binaries, which shrinks each tor.mp3 by about 200 kB. On Debian the
>> version of strip you need is in binutils-multiarch.
>
> Thanks!
For Android, it is probably best to use the strip that comes with the NDK. Its
in the same folder with the same arch prefix as gcc, etc. For example:
/opt/android-ndk-r10d//toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/arm-linux-androideabi-strip
or:
/opt/android-ndk-r10d/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/arm-linux-androideabi/bin/strip
Also, using the build flags from the NDK itself can help make the binaries
smaller. Check out GnuPG-for-Android for an example. The Makefile includes
this:
include $(ANDROID_NDK_HOME)/toolchains/$(NDK_TOOLCHAIN)/setup.mk
Then you can do something like this:
ifeq ($(APP_ABI),armeabi-v7a)
CFLAGS += $(TARGET_arm_release_CFLAGS)
endif
ifeq ($(APP_ABI),armeabi)
CFLAGS += $(TARGET_thumb_release_CFLAGS)
endif
https://github.com/guardianproject/gnupg-for-android/blob/master/external/Makefile
.hc
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