PR 18167, Relax PR 15228 protected visibility restriction

[Pedro Alves]

On 03/27/2015 05:56 PM, H.J. Lu wrote:
> On Fri, Mar 27, 2015 at 10:39 AM, Pedro Alves <palves@redhat.com> wrote:
>> On 03/27/2015 05:25 PM, H.J. Lu wrote:
>>> On Fri, Mar 27, 2015 at 10:09 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
>>>> On Fri, Mar 27, 2015 at 10:06 AM, Pedro Alves <palves@redhat.com> wrote:

>>>>>> If one of gcc, glibc or binutils isn't fixed, the program may misbehave.
>>>>>> I don't know how it be avoided at run-time with fixing all 3.
>>>>>
>>>>> I'm not really worried about gcc or binutils.  Those are easy to
>>>>> update.  The issue is picking a binary that was built against fixed
>>>>> gcc and binutils, and then running it on an system that happens to
>>>>> not have glibc fixed.  That just seems like ABI breakage.
>>>>>
>>>>> How about emitting a reference to a symbol that only fixed glibc
>>>>> provides?
>>>>
>>>> It is easy to verify.  Stay tuned.
> 
> Yes, the program will misbehave if the run-time glibc isn't
> fixed.

OK.  I'm a bit confused now.  Are you going to try the idea
suggested above?

Thanks,
Pedro Alves