C++ Exception Test Failure on Sparc SIS.

[Gedare Bloom]

On Fri, Mar 21, 2014 at 2:42 AM, JunBeom Kim (Coressent)
<jbkim at coressentkorea.co.kr> wrote:
> Dear Sir,
>
>
>
> After I built RTEMS kernel for Sparc SIS, I downloaded examples-v2.
>
> Also, I am testing cxx example.
>
>
>
> When I test cxx example on SIS, C++ exception(throw->catch) is not working.
>
> Console message is below;
>
>
>
> SIS - SPARC instruction simulator 2.7.5,  copyright Jiri Gaisler 1995
>
> Bug-reports to jgais at wd.estec.esa.nl
>
>
>
> sis> load cxx_throw.exe
>
> sis> go
>
> resuming at 0x02000000
>
> Hey I'm in base class constructor number 1 for 0x2081318.
>
> Hey I'm in base class constructor number 2 for 0x2081320.
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> Hey I'm in derived class constructor number 3 for 0x2081320.
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>
>
>
>
> *** CONSTRUCTOR/DESTRUCTOR TEST ***
>
> Hey I'm in base class constructor number 4 for 0x208c724.
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> Hey I'm in base class constructor number 5 for 0x208c71c.
>
> Hey I'm in base class constructor number 6 for 0x208c714.
>
> Hey I'm in base class constructor number 7 for 0x208c70c.
>
> Hey I'm in derived class constructor number 8 for 0x208c70c.
>
> Testing a C++ I/O stream
>
> before try block
>
> Unexpected trap ( 7) at address 0x02034A54
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> memory address not aligned
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> IU in error mode (257)
>
>    826787 02036f14  91d02000  Address 0x02036f14 is out of bounds.
>
>
>
> I want to know how to receive this problem.
>

Use sparc-rtems-4.11-objdump -d option to disassemble the executable
binary, then see what is the location of address 0x02034A54. Set a
breakpoint in debugger at that function, see what memory address is
causing the alignment fault. Determine where the memory address gets
computed, and why there is an alignment problem. The compiler should
not cause an alignment problem unless it gets the wrong flags or the
code uses some tricks to coerce data types, so perhaps the code where
the fault happens has got a bad set of compiler flags.

That's where I would start anyway. Good luck,
Gedare
>
>
> Best Regards,
>
> JunBeom Kim
>
>
>
>
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