llvm dev - May 2014 - [LLVMdev] Libc++abi tests on ARM

Hi Logan,

I'm running the tests on libc++abi on ARM and I'm seeing some errors.
On your earlier email you said you ran the tests clean, and I was
wondering what magic do I need to get the same results. :)

I had to change the build and test scripts a little to make it compile
on Linux, but nothing radical. I also had to copy (and link) the
libc++abi.so files on install/lib and use that clang.

On the test script, I've added "-lc++abi -lpthread" to OPTIONS and
added LD_LIBRARY_PATH="../../install/lib" to help it find libc++. With
that, I still got 6 failures:

terminating with uncaught exception of type char*
Aborted (core dumped)
catch_array_02.cpp failed at run time

terminating with uncaught exception of type void (*)()
Aborted (core dumped)
catch_function_02.cpp failed at run time

terminating with uncaught exception of type derived*
Aborted (core dumped)
catch_ptr_02.cpp failed at run time

terminating with uncaught exception of type int
Aborted (core dumped)
unwind_01.cpp failed at run time

terminating with uncaught exception of type int
Aborted (core dumped)
unwind_02.cpp failed at run time

terminating with uncaught exception of type char
Aborted (core dumped)
unwind_04.cpp failed at run time

Have you seen these failures? I haven't dug deep enough, just
wondering if it's something I'm (not) doing.

cheers,
--renato

Hi Renato,

There is a known issue in the code generated by LLVM.
As a workaround, I am adding "-funwind-tables" to compile the unit
tests.

BTW, the LLVM revision which I am using is r207501.
It seems that the recent master has come regression on unwind_04 and
unwind_05.
I am bisecting at the moment.

Sincerely,
Logan


On Mon, May 12, 2014 at 6:11 PM, Renato Golin <renato.golin at
linaro.org>wrote:
> Hi Logan,
>
> I'm running the tests on libc++abi on ARM and I'm seeing some
errors.
> On your earlier email you said you ran the tests clean, and I was
> wondering what magic do I need to get the same results. :)
>
> I had to change the build and test scripts a little to make it compile
> on Linux, but nothing radical. I also had to copy (and link) the
> libc++abi.so files on install/lib and use that clang.
>
> On the test script, I've added "-lc++abi -lpthread" to
OPTIONS and
> added LD_LIBRARY_PATH="../../install/lib" to help it find libc++.
With
> that, I still got 6 failures:
>
> terminating with uncaught exception of type char*
> Aborted (core dumped)
> catch_array_02.cpp failed at run time
>
> terminating with uncaught exception of type void (*)()
> Aborted (core dumped)
> catch_function_02.cpp failed at run time
>
> terminating with uncaught exception of type derived*
> Aborted (core dumped)
> catch_ptr_02.cpp failed at run time
>
> terminating with uncaught exception of type int
> Aborted (core dumped)
> unwind_01.cpp failed at run time
>
> terminating with uncaught exception of type int
> Aborted (core dumped)
> unwind_02.cpp failed at run time
>
> terminating with uncaught exception of type char
> Aborted (core dumped)
> unwind_04.cpp failed at run time
>
> Have you seen these failures? I haven't dug deep enough, just
> wondering if it's something I'm (not) doing.
>
> cheers,
> --renato
>
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On 12 May 2014 20:20, Logan Chien <tzuhsiang.chien at gmail.com>
wrote:
> There is a known issue in the code generated by LLVM.
> As a workaround, I am adding "-funwind-tables" to compile the
unit tests.
I thought I had fixed all of them. Do you have a bug number?

> BTW, the LLVM revision which I am using is r207501.
> It seems that the recent master has come regression on unwind_04 and
> unwind_05.
I'm using 208522. I haven't seen errors in the unwind_05...

cheers,
--renato