On Fri, 19 May 2023, Sergey Bugaev via Libc-alpha wrote:
> 'foo' is a public symbol, to be used by the user, and also
> interposable by the user. Always called via PLT (except from inside
> the user's code when redefined inside the executable, in which case
> the compiler/linker will see that no P
* Sergey Bugaev:
> On Thu, May 18, 2023 at 11:16 PM Joseph Myers wrote:
>> Strictly there are two separate issues: (a) calling an exported symbol
>> should be done via a hidden alias, to avoid going via the PLT, and (b)
>> functions in a standard namespace should not call names in the user's
>> n
On Thu, May 18, 2023 at 11:16 PM Joseph Myers wrote:
> Strictly there are two separate issues: (a) calling an exported symbol
> should be done via a hidden alias, to avoid going via the PLT, and (b)
> functions in a standard namespace should not call names in the user's
> namespace, which requires
Joseph Myers, le jeu. 18 mai 2023 20:16:03 +, a ecrit:
> The C++ type check failure was already present before this patch.
>
> --- sysdeps/mach/hurd/x86_64/c++-types.data 2023-05-02 09:14:30.246903708
> +
> +++ - 2023-05-18 02:08:06.184068438 +
> @@ -1 +1 @@
> -blkcnt64_t:x
> +b
On Thu, 18 May 2023, Sergey Bugaev via Libc-alpha wrote:
> Hello,
>
> On Thu, May 18, 2023 at 9:55 PM Joseph Myers wrote:
> >
> > I suspect this of causing linknamespace test failures:
> >
> > Contents of conform/POSIX2008/pthread.h/linknamespace.out:
> >
> > [initial] pthread_create -> [libpthr
Hello,
On Thu, May 18, 2023 at 9:55 PM Joseph Myers wrote:
>
> I suspect this of causing linknamespace test failures:
>
> Contents of conform/POSIX2008/pthread.h/linknamespace.out:
>
> [initial] pthread_create -> [libpthread.a(pt-create.o)] __pthread_setup ->
> [libpthread.a(pt-setup.o)] hurd_th
I suspect this of causing linknamespace test failures:
Contents of conform/POSIX2008/pthread.h/linknamespace.out:
[initial] pthread_create -> [libpthread.a(pt-create.o)] __pthread_setup ->
[libpthread.a(pt-setup.o)] hurd_thread_self
(On x86_64 there's also a localplt test failure: "Extra PLT re
Applied, thanks!
Sergey Bugaev, le mer. 17 mai 2023 22:14:32 +0300, a ecrit:
> Unlike sigstate->thread, tcb->self did not hold a Mach port reference on
> the thread port it names. This means that the port can be deallocated,
> and the name reused for something else, without anyone noticing. Using
Unlike sigstate->thread, tcb->self did not hold a Mach port reference on
the thread port it names. This means that the port can be deallocated,
and the name reused for something else, without anyone noticing. Using
tcb->self will then lead to port use-after-free.
Fortunately nothing was accessing
