http://gdcproject.org/bugzilla/show_bug.cgi?id=13

--- Comment #1 from Iain Buclaw <ibuclaw@gdcproject.org> 2012-09-25 20:31:59 UTC ---
ARM va_list type is void*
ARM EABI va_list type is {void*}

As such, you need to be a little more creative about getting it's value the x86-way.

byte *p = *cast(byte**)&argptr;
byte b = *p;

Works for both the old and embedded ABI's.

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http://gdcproject.org/bugzilla/show_bug.cgi?id=13

--- Comment #2 from Johannes Pfau <johannespfau@gmail.com> 2012-09-26 09:26:55 UTC ---
So D doesn't make any guarantees that casting va_list to a pointer is portable, right?

But what does that mean for the test suite? Change it to use the portable va_arg or is that test meant to be platform specific and we should add a version(ARM) block to test the ARM behaviour?

https://github.com/D-Programming-GDC/GDC/blob/master/gcc/testsuite/gdc.test/runnable/test20.d#L595 https://github.com/D-Programming-GDC/GDC/blob/master/gcc/testsuite/gdc.test/runnable/testdstress.d#L209

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http://gdcproject.org/bugzilla/show_bug.cgi?id=13

--- Comment #3 from Iain Buclaw <ibuclaw@gdcproject.org> 2012-09-26 13:34:12 UTC ---
(In reply to comment #2)
> So D doesn't make any guarantees that casting va_list to a pointer is portable, right?
> 
> But what does that mean for the test suite? Change it to use the portable va_arg or is that test meant to be platform specific and we should add a version(ARM) block to test the ARM behaviour?
> 
> https://github.com/D-Programming-GDC/GDC/blob/master/gcc/testsuite/gdc.test/runnable/test20.d#L595 https://github.com/D-Programming-GDC/GDC/blob/master/gcc/testsuite/gdc.test/runnable/testdstress.d#L209

Both look fishy... how it is passing for 64bit, I do not know.

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Johannes Pfau <johannespfau@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|ibuclaw@gdcproject.org      |johannespfau@gmail.com

--- Comment #4 from Johannes Pfau <johannespfau@gmail.com> 2012-09-27 18:02:33 UTC ---
https://github.com/D-Programming-Language/dmd/pull/1149

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Johannes Pfau <johannespfau@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #5 from Johannes Pfau <johannespfau@gmail.com> 2012-10-27 17:53:41 UTC ---
Fixed in upstream dmd: https://github.com/D-Programming-Language/dmd/commit/f804036586e3c5a363c29f47f1e9407304c75f9e

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