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Re: re-enabling debugging of 32 bit processes with 64 bit debugger
On Sat, Jun 29, 2019 at 08:03:59PM -0000, Christos Zoulas wrote:
> In article <CAJeAr6vOWxv4ZxspYNMDeuP0U=ZcCFACPsBMOZ-4xguf54njTg%mail.gmail.com@localhost>,
> Andrew Cagney <andrew.cagney%gmail.com@localhost> wrote:
> >Having 32-bit and 64-bit debuggers isn't sufficient. Specifically, it
> >can't handle an exec() call where the new executable has a different
> >ISA; and this imnsho is a must have.
> It is really hard to make a 32 bit debugger work on a 64 bit system
> because of the tricks we play with the location of the shared
> libraries in rtld and the debugger needs to be aware of them.
I don't buy that at all. Exposing the translation to a debugger is
trivial and in most cases, it doesn't care about the lookup mechanism at
all since it just asks the dynamic linker for the path names of the
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