Clang3.8 cross-compile linker issues libc (undefined references) about ndk HOT 11 CLOSED

Works fine with build 2490520, so this is a pretty recent regression (I assume that by "clang3.8/android-ndk-20160105 snapshot on Debian Jessie" you mean you built it yourself? Or does Debian provide nightlies?)

Checking with a ToT build right now.

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Those symbols, and a few others, ended up getting accidentally removed from the NDK's definition of libc while we were purging other private symbols and whatnot. @dimitry- is working on a fix.

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Nice, thx.
Yes, i built it myself. I'm not sure where to find the NDK build number but the last commit of 'NDK' folder is:

commit 6488e1c4dca9fe7529de66e04af290eb7f27bed0
Merge: 9c0014c 299d47d
Author: Dan Albert <[email protected]>
Date:   Mon Jan 4 22:30:04 2016 +0000

    Merge "Update the changelog for build 2510877."

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Yeah, unfortunately our build servers aren't publicly visible (yet, I'm working on making that happen).

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Fixed by:
https://android-review.googlesource.com/194652
https://android-review.googlesource.com/194625

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Here's another one:
__gnu_Unwind_Find_exidx
Unresolved in $TOOLCHAIN/arm-linux-androideabi/lib/armv7-a/thumb/libc++_shared.so:

Is make-standalone-toolchain.sh --stl=gnustl not yet ready? --stl=libc++ works properly.
ERROR: Cant' copy from non-directory: /home/bob/Android/android-ndk-20160106/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi/thumb

cmdline:
$ANDROID_NDK_ROOT/build/tools/make-standalone-toolchain.sh --verbose --platform=android-21 --install-dir=$TOOLCHAIN --arch=arm --toolchain=arm-linux-androideabi-4.9 --use-llvm --stl=gnustl

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will move it to LIBC there are couple of others I missed (__popcount_tab?)

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Not sure about any more libc symbols but the libc++_shared.so seems completely unusable:

0 bob ~ $ echo "int main() { return 0; }" | $TRIPLE-clang++ -xc++ - -lc++_shared
/home/bob/Android/mytoolchain/bin/../lib/gcc/arm-linux-androideabi/4.9/../../../../arm-linux-androideabi/lib/../lib/libc++_shared.so: error: undefined reference to '__gnu_Unwind_Find_exidx'
clang38++: error: linker command failed with exit code 1 (use -v to see invocation)
1 bob ~ $

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CLs:
https://android-review.googlesource.com/195350 and
https://android-review.googlesource.com/195322

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I think __page_size is another one used by https://github.com/seth-hg/fuse-android.

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__page_size was only used for android-12 and below.. I have fixed getpagesize for these versions to use PAGE_SIZE instead

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