Re: [Libunwind-devel] Multi-platform unwinding i386 binary on x86_64

[David Mosberger-Tang]

I was hoping someone with more familiarity with x86/x86-64 would comment on it.

In any case, when I looked at the patch, it seemed to me that
MAP32_BIT is going to be used unconditionally for all platforms that
define such a macro.  That seems wrong to me.  You don't want to force
mapping in the low 4GiB for 64-bit targets (you could easily run out
of address space).  Did I miss something?

 --david

On 5/1/07, Nurdin Premji <address@hidden> wrote:
> Nurdin Premji wrote:
> > Can this be committed?
> This forces the memory mapped in from the inferior process to be mapped
> only into the first 32 bits of memory. This avoids the situation of
> truncated memory addresses when unwinding a 32 bit process on a 64  bit
> host.
>
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