GCC stack backtraces

[Ian Lance Taylor]

On Wed, Aug 29, 2012 at 6:27 AM, Michael Matz <matz@suse.de> wrote:
>
> On Wed, 29 Aug 2012, Ian Lance Taylor wrote:
>
>> Does this seem like something we could usefully add to GCC?  Does
>> anybody see any big problems with it?
>
> Does it work without unwind tables?  I suspect it doesn't as it's using
> libgccs unwinder, so that would be a problem if we were to use it to
> generally replace our current non-backtrace based means.

This implementation requires unwind tables.  Since I wrote it
primarily for use in GCC, and since C++ requires unwind tables, and
for that matter so does the x86_64 ABI, I don't really see that as a
major issue.

In any case there is no reason to remove the current mechanisms.

Ian