Re: [PATCH] fix vsyscall page in core dumps

[Andrew Morton]

Roland McGrath <roland@xxxxxxxxxx> wrote:
>
> My change to core dumps that was included with the vsyscall DSO
>  implementation had a bug (braino on my part).  Core dumps don't include the
>  full page of the vsyscall DSO, and so don't accurately represent the whole
>  memory image of the process.  This patch fixes it.  I have tested it on
>  x86, but not tested the same change to 32-bit core dumps on AMD64 (haven't
>  even compiled on AMD64).
> 
>  I've also included the corresponding change for the IA64 code that was
>  copied blindly from the x86 vsyscall implementation, which looks like more
>  change than it is since I preserved the formatting of the copied code
>  instead of arbitrarily diddling it along with the trivial symbol name
>  changes.

How does one test it?

> I haven't compiled or tested on ia64.

I have.  GATE_BASE is undefined.  Replacing it with GATE_ADDR makes it
build OK, but that's all I can say.

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