glibc 2.19 - asyn-signal safe TLS and ASan.

[Ondřej Bílka]

On Sat, Jan 25, 2014 at 12:52:20AM +0400, Kostya Serebryany wrote:
> [text-only]
> 
> On Fri, Jan 24, 2014 at 9:53 PM, Joseph S. Myers
> <joseph@codesourcery.com> wrote:
> > On Fri, 24 Jan 2014, Paul Pluzhnikov wrote:
> >
> >> I *think* exporting these symbols for 2.19 is the right thing to do.
> >
> > I don't think such symbols are a good idea for the public interface (as
> Could you think of some other way to un-break LeakSanitizer in the
> 2.19 time frame?
> (I suppose that https://sourceware.org/bugzilla/show_bug.cgi?id=16291
> can not be properly implemented for 2.19).
> I am sure we will find some even uglier hack to support both 2.19 and
> pre-2.19, but that will be most unfortunate...
>
 
There would be a possible hack to override mmap and look for mmap that
with dl_addr in backtrace.