[google gcc-4_7, integration] Build more of libstdc++ with frame pointers
Thu Feb 28 16:24:00 GMT 2013
On Wed, Feb 27, 2013 at 5:52 PM, Ian Lance Taylor <email@example.com> wrote:
> I think that the libgcc unwinder only calls malloc if somebody calls
So I looked. Indeed it doesn't call malloc in our environment, but
does call dl_iterate_phdr, which is just as deadly.
To be fair, libunwind does that as well, and we have to provide a
workaround for that.
Still, out-of-the-box libgcc unwinder is not suitable for our unwind
> I thought a more serious issue is that the libgcc unwinder has no way
> of dealing with a corrupt stack--it will simply crash.
That too ...
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