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[patchv2] Fix corruption of non-C++ symbols by the demangler
- From: Jan Kratochvil <jan dot kratochvil at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Wed, 15 Jan 2014 14:09:54 +0100
- Subject: [patchv2] Fix corruption of non-C++ symbols by the demangler
On Tue, 14 Jan 2014 11:22:41 +0100, Mark Wielaard wrote:
> On Tue, 2014-01-14 at 10:07 +0100, Jan Kratochvil wrote:
> > On Tue, 14 Jan 2014 10:00:59 +0100, Mark Wielaard wrote:
> > > The __GLOBAL__.[ID]_xxx functions are wrappers generated when a module
> > > xxx contains constructors and destructors of static objects, which will
> > > call the actual static initialization and destruction functions for all
> > > globals in the module. Since they are "normal" functions they could
> > > potentially end up in a backtrace, but I am not sure "demangling" them
> > > provides any real benefit.
> > In such case I will add it, it should be there.
> It probably doesn't hurt, but it also isn't a real/proper mangling
> scheme. Just an g++ convention. It "demangles" to 'global constructors
> keyed to xxx'. According to the documentation the only prefix you should
> check for is _Z:
elfutils already implements various non-upstream-standard extensions, like
.gnu_debugdata for all so I do not find it a relevant argument here.
So probably another disagreement if you did not agree with it by "doesn't
hurt", not sure. It is not in the patch below.