1 # Build libc++abi and libc++ closely resembling what is shipped in the Android
4 # The NDK names the libraries libc++_shared.so and libc++_static.a. Using the
5 # libc++_shared.so soname ensures that the library doesn't interact with the
6 # libc++.so in /system/lib[64].
7 set(LIBCXX_SHARED_OUTPUT_NAME c++_shared CACHE STRING "")
8 set(LIBCXX_STATIC_OUTPUT_NAME c++_static CACHE STRING "")
10 # The NDK libc++ uses a special namespace to help isolate its symbols from those
11 # in the platform's STL (e.g. /system/lib[64]/libc++.so, but possibly stlport on
12 # older versions of Android).
13 set(LIBCXX_ABI_VERSION 1 CACHE STRING "")
14 set(LIBCXX_ABI_NAMESPACE __ndk1 CACHE STRING "")
16 # CMake doesn't add a version suffix to an Android shared object filename,
17 # (because CMAKE_PLATFORM_NO_VERSIONED_SONAME is set), so it writes both a
18 # libc++_shared.so ELF file and a libc++_shared.so linker script to the same
19 # output path (the script clobbers the binary). Turn off the linker script.
20 set(LIBCXX_ENABLE_ABI_LINKER_SCRIPT OFF CACHE BOOL "")
22 set(LIBCXX_STATICALLY_LINK_ABI_IN_SHARED_LIBRARY ON CACHE BOOL "")
23 set(LIBCXXABI_ENABLE_SHARED OFF CACHE BOOL "")
25 # Android uses its own unwinder library
26 set(LIBCXXABI_USE_LLVM_UNWINDER OFF CACHE BOOL "")
28 # Clang links libc++ by default, but it doesn't exist yet. The libc++ CMake
29 # files specify -nostdlib++ to avoid this problem, but CMake's default "compiler
30 # works" testing doesn't pass that flag, so force those tests to pass.
31 set(CMAKE_C_COMPILER_WORKS ON CACHE BOOL "")
32 set(CMAKE_CXX_COMPILER_WORKS ON CACHE BOOL "")
34 # Use adb to push tests to a locally-connected device (e.g. emulator) and run
36 set(LIBCXX_TEST_CONFIG "llvm-libc++-android-ndk.cfg.in" CACHE STRING "")
37 set(LIBCXXABI_TEST_CONFIG "llvm-libc++abi-android-ndk.cfg.in" CACHE STRING "")