[PATCH] D14165: [lld] Ensure we link to the threading library used by std::thread (e.g. pthreads).

[Rafael Espíndola via llvm-commits]

Can you email the .ii file?
On Nov 5, 2015 4:54 AM, "Daniel Sanders" <Daniel.Sanders at imgtec.com> wrote:

> It's the libstdc++-4.9-dev in Debian Jessie (amd64). The package version
> is 4.9.2-10.
> ________________________________________
> From: Rafael Espíndola [rafael.espindola at gmail.com]
> Sent: 04 November 2015 13:02
> To: reviews+D14165+public+8a648fa84ee244b3 at reviews.llvm.org; Daniel
> Sanders
> Cc: Rui Ueyama; llvm-commits
> Subject: Re: [PATCH] D14165: [lld] Ensure we link to the threading library
> used by std::thread (e.g. pthreads).
>
> Which C++ library is that? On my system (gcc 4.9) running
>
> grep -r '&pthread_create' /usr/include/c++/
>
> finds nothing.
>
> And in the preprocessed file:
>
> $ grep pthread_create  SymbolTable.ii
> extern int pthread_create (pthread_t *__restrict __newthread,
> static __typeof(pthread_create) __gthrw_pthread_create __attribute__
> ((__weakref__("pthread_create")));
>   return __gthrw_pthread_create (__threadid, __null, __func, __args);
>
>
> Cheers,
> Rafael
>
> On 30 October 2015 at 03:28, Daniel Sanders via llvm-commits
> <llvm-commits at lists.llvm.org> wrote:
> > dsanders added a comment.
> >
> > FWIW, it seems odd that we'd need pthreads when we don't use threads.
> I've just had a look at the preprocessed source for COFF/SymbolTable.cpp
> and the pthread_create reference comes from this line:
> >
> >   __asm ("" : : "r" (&pthread_create));
> >
> > which was in the <thread> that was included by <future>.
> >
> >
> > http://reviews.llvm.org/D14165
> >
> >
> >
> > _______________________________________________
> > llvm-commits mailing list
> > llvm-commits at lists.llvm.org
> > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>
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