update NDK to r17b

[koral--]

No description provided.

[trapacska]

Checked around but @ghaabor please have a strict look as well. For now it seems like that nothing serious has changed.

r17b

• [Issue 480]: Fixed libc++ header issues with _FILE_OFFSET_BITS=64.
• [Issue 692]: Fixed ASAN for standalone toolchains with static STLs.
• [Issue 697]: Pulled documentation updates for simpleperf.
• [Issue 702]: Updated sysroot to fix missing libc symbols.
• [Issue 704]: Updated shaderc/vulkan-validation-layers sources.
• [Issue 708]: Fixed introduced API tag for
  pthread_cond_timedwait_monotonic_nmp to make it available on ICS.
  [Issue 480]: can't #include <cstdio> with __FILE_OFFSET_BITS=64 android/ndk#480
  [Issue 692]: r17 standalone toolchain's -static-libstdc++ flag links arm32 libdl statically (breaks ASAN, dlopen) android/ndk#692
  [Issue 697]: cherry-pick simpleperf doc updates for r17b android/ndk#697
  [Issue 702]: undefined reference to 'iconv_open' android/ndk#702
  [Issue 704]: libshaderc sources in NDK r.17 outdated  android/ndk#704
  [Issue 708]: error: undefined reference to 'pthread_cond_timedwait_monotonic_np' for android-14 and android-15  android/ndk#708
  Changes

---

• Updated Clang to build 4691093, based on r316199.
  • [Issue 313]: LTO now works on Windows.
  • [Issue 527]: [Undefined Behavior Sanitizer] now works for NDK binaries.
  • [Issue 593]: Clang now automatically passes --eh-frame-hdr to the
    linker even for static executables, fixing exception handling.
• Updated gtest to upstream revision 0fe96607d85cf3a25ac40da369db62bbee2939a5.
• libandroid_support is no longer used when your NDK API level is greater
  than or equal to 21 (Lollipop). Build system maintainers: be sure to update
  your build systems to account for this.
• The platform static libraries (libc.a, libm.a, etc.) have been updated.
  • All NDK platforms now contain a modern version of these static libraries.
    Previously they were all Gingerbread (perhaps even older) or Lollipop.
  • Prior NDKs could not use the static libraries with a modern NDK API level
    because of symbol collisions between libc.a and libandroid_support. This
    has been solved by removing libandroid_support for modern API levels. A
    side effect of this is that you must now target at least android-21 to
    use the static libraries, but these binaries will still work on older
    devices.
• Fixed parsing of the NDK revision in CMake. NDK version information is now
  available in the following CMake variables:
  • ANDROID_NDK_REVISION: The full string in the source.properties file.
  • ANDROID_NDK_MAJOR: The major revision of the NDK. For example: the 16
    in r16b.
  • ANDROID_NDK_MINOR: The minor revision of the NDK. For example: the b
    (represented as 1) in r16b.
  • ANDROID_NDK_BUILD: The build number of the NDK. This is 0 in the case
    of a local development build.
  • ANDROID_NDK_BETA: The beta version of the NDK. This is 0 for a stable
    release.
• Added support for APP_WRAP_SH to ndk-build.
  • This variable points to a shell script (relative to your Android.mk) that
    will be installed as a [wrap.sh] file in your APK.
  • Available in both an ABI-generic form (APP_WRAP_SH), which will install
    a single script for every ABI, and an ABI-specific form
    (APP_WRAP_SH_arm64-v8a, etc) to allow for per-ABI customization of the
    wrap.sh script.
• [Issue 540]: ndk-build now installs sanitizer runtime libraries to your out
  directory for inclusion in your APK. Coupled with [wrap.sh], this removes the
  requirement of rooting your device to use sanitizers.
• When using ASAN, ndk-build will install a wrap.sh file to set up ASAN for
  your app if you have not specified your own wrap.sh. If you have specified
  your own wrap.sh, you can add ASAN support to it as described
  here.
• [Issue 614]: ndk-build and CMake no longer pass -fno-integrated-as for
  arm32 by default. If your project contains hand written assembly, you may
  need to pass this flag.
• ion.h is no longer a part of the NDK. This file defined an API that is not
  consistent across devices.
  [Undefined Behavior Sanitizer]: https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html
  [wrap.sh]: https://developer.android.com/ndk/guides/wrap-script.html
  [Issue 313]: Windows, NDK r14: link time optimization does not work with Clang android/ndk#313
  [Issue 527]: ubsan support android/ndk#527
  [Issue 540]: copy ASAN library to app install directory android/ndk#540
  [Issue 593]: exception handling doesn't work with static executables android/ndk#593
  [Issue 614]: Problem cross compiling freetype with Clang (android-ndk-r16b) android/ndk#614
  Known Issues

---

• This is not intended to be a comprehensive list of all outstanding bugs.
• [Issue 360]: thread_local variables with non-trivial destructors will cause
  segfaults if the containing library is dlcloseed on devices running M or
  newer, or devices before M when using a static STL. The simple workaround is
  to not call dlclose.
• [Issue 70838247]: Gold emits broken debug information for AArch64. AArch64
  still uses BFD by default.

[ghaabor]

LGTM 👍 thanks @koral-- !