z8k simulator broken
Andrew Cagney
ac131313@redhat.com
Wed Jan 15 16:09:00 GMT 2003
> For the curious (why would you be curious? I don't know. I don't even
> know why I started doing this!) I don't know if this simulator was ever
> able to run GDB tests or simple newlib binaries but my guess is not
> recently.
>
> A z8002 binary (gdb.base/break) has a .text section of size 0xeb24 or
> so. The heap is 0x5000, the stack is 0x1000, and AFAICT a z8002 has
> only 0x10000 memory.
>
> A z8001 has much more memory available but only in 64k segments, and
> .text is:
> 0 .text 00019a94 00000000 00000000 00000120 2**1
> CONTENTS, ALLOC, LOAD, CODE
>
> i.e. much more than the one segment it can use.
>
>
> I was trying to multi-arch the z8k on a lark, but it's not enough of a
> lark to try to get around _that_. Let it die.
Hmm, I'll file this one away :-)
More evidence supporting the hard-nosed requirement that someone doing a
multi-arch must ensure that the before/after code actually works. GDB
isn't in the business of trying to preserve dead code.
Andrew
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