This change basically ported our target multilib to the host side.
It supports 2 host build modes: x86 and x86_64 multilib build.
For now you need to set "BUILD_HOST_64bit=true" to switch to x86_64
multilib build. Later we'll default to x86_64 build and have a flag
to force 32-bit only build, which may be needed by SDK build.
In host module definition, like in target ones, you can use the
following
LOCAL variables to set up multilib configuration:
LOCAL_MULTILIB: can be "both", "first", "32" or "64".
It also supports the same set of arch or 32-vs-64 specific LOCAL
variables.
By default, it builds only for the first arch.
To keep path compatibility, in x86_64 build files are still output to
out/host/linux-x86; Both 32-bit and 64-bit executables are in
out/host/linux-86/bin;
In x86_64 build 32-bit shared libraries are installed to
out/host/linux-x86/lib32
and 64-bit shared libraries are installed to out/host/linux-x86/lib;
32-bit object files are output to out/host/linux-x86/obj32 and 64-bit
object files
are output to out/host/linux-x86/obj.
Bug: 13751317
Change-Id: I6044f83b7db369a33e05209e8c588eb6dc83409f
Previously we have to use LOCAL_REQUIRED_MODULES to install jni
libraries for an apk in bundled build.
With this change, we'll use LOCAL_JNI_SHARED_LIBRARIES alone to
install jni shared libraries.
The new rules are:
- If we are doing unbundled build, or the apk isn't going to be
installed to system partitions, we'll embed the jni libs in the
built apk.
- Otherwise, the jni libraries will be installed to the system
lib path, and symlinks created in the app specific lib path.
Change-Id: Id6bd5301eb632bda3593664acee580f0d8b1d5d4
Also we don't need to include module_arch_supported.mk again, if we are
currently substituting the source build with LOCAL_PREBUILT_MODULE_FILE.
Change-Id: I444b0397d74c3153b398a050b762e49418062a86
Prebuilts often support only a single architecture, allow them to
use LOCAL_MODULE_TARGET_ARCH to specify it.
Change-Id: I2514f66f682ef267bbf1a1ab78510faff0a18b64
