Re: [Gems-users] Using Magic Instruction on sparc64-linux

[Alaa Alameldeen <alaa@xxxxxxxxxxx>]

It would probably be better if you send this question to the Simics 
forum. The magic breakpoint "should" stop the simulation when your code 
gets there.
-Alaa

Gene Michael Kishinevsky wrote:
> Hi all,
>
> We've tried using the magic instruction today on our simulated system with
> no success. We're using the bagle system provided by Simics, which is a sun
> sparc64 machine with linux on it. I used the magic-breakpoint-enable command
> in Simics and then ran my simple program on the simulated machine. However,
> we never got the simulation to stop. We tried changing the instructions
> around and even using the magic-instruction.h library definition instead of
> our own. When using the library we got an "unsupported architecture" error
> from the following section of code in the magic library.
>
> #else  /* !__sparc && !__i386 && !__powerpc__ */
> #error "Unsupported architecture"
> #endif /* !__sparc && !__i386 && !__powerpc__ */
>
> I've included our test program below. If anyone has any suggestions we'd be
> very grateful.
>
> Thanks a lot.
>
> -Gene
>
>
> #include <stdio.h>
> //#include "magic-instruction.h"
>
> #define MAGIC_INSTRUCTION do {    \
>    __asm__ __volatile__ ("sethi 0, %g0");  \
> } while (0)
>
> main() {
>   printf("Hello world.");
>   MAGIC_INSTRUCTION;
>   printf("After magic I should have stoppped!");
> }
>
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