This is the mail archive of the
mailing list for the GCC project.
Re: libsanitizer merge from upstream r175042
On Wed, Feb 13, 2013 at 11:48:32AM -0500, Jack Howarth wrote:
> On Wed, Feb 13, 2013 at 04:19:14PM +0100, Jakub Jelinek wrote:
> > The reexec is problematic, what if the program already in constructors run
> > before __asan_init (perhaps ctors of other libraries etc.) does something
> > that really shouldn't be done twice?
> Wouldn't sorting all of the constructors and destructors by priority, while
> retaining the original order, in collect2 solve this issue (as was proposed for
> implementing intra-modular init priority support on darwin)?
I wasn't talking about darwin at all, and on Linux inter-CU init priority
works just fine. I'm just saying that reexec isn't always safe, because
what the program does before __asan_init can be something undesirable to be
done multiple times.