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Re: [PATCH RFC] DWARF2 CFI exploitation for Linux on S/390
- From: Hans-Peter Nilsson <hp at bitrange dot com>
- To: Michal Ludvig <mludvig at suse dot cz>
- Cc: Andrew Cagney <ac131313 at redhat dot com>, Gerhard Tonn <TON at de dot ibm dot com>, <gdb-patches at sources dot redhat dot com>
- Date: Mon, 30 Sep 2002 11:24:15 -0400 (EDT)
- Subject: Re: [PATCH RFC] DWARF2 CFI exploitation for Linux on S/390
On Mon, 30 Sep 2002, Michal Ludvig wrote:
> Andrew Cagney wrote:
>
> > The CFI code needs to be updated
> > to work with that interface, and also work with the current
> > regcache.[hc] interface.
>
> What needs to be done for this in general?
I have patches in progress that fixes cross-debugging endian
problems (currently it copies target addresses bitwise and
compares it to endian-adjusted data), completely missing
DWARF2_REG_TO_REGNUM mapping and a bug that sets the PC for all
frames as the last frame. Those issues might be what's referred
to. More about that in a day or two.
I have no way to test them (no x86-64 here) other than a
port-in-progress. Suggestions how to test dwarf2cfi.[hc]
changes welcome.
Maybe I should mention that I *really like* the presence of
dwarf2-interpreting machinery. Takes a lot of work on frame
stuff away for a port. Thanks!
brgds, H-P