Re: ATTRIBUTE_NONSTRING

2018-05-01 Thread Jeff Law
On 04/28/2018 12:25 AM, Alan Modra wrote:
> On Fri, Apr 27, 2018 at 06:24:28PM -0400, Hans-Peter Nilsson wrote:
>> On Fri, 27 Apr 2018, Alan Modra wrote:
>>
>>> This patch adds ATTRIBUTE_NONSTRING, which will be used to curb
>>> -Wstringop-truncation warnings in binutils.  OK to apply?
>>>
>>> * ansidecl.h (ATTRIBUTE_NONSTRING): Define.
>>>
>>> diff --git a/include/ansidecl.h b/include/ansidecl.h
>>> index c11daff..ec5f34d 100644
>>> --- a/include/ansidecl.h
>>> +++ b/include/ansidecl.h
>>> @@ -283,6 +283,15 @@ So instead we use the macro below and test it against 
>>> specific values.  */
>>>  # endif /* GNUC >= 4.9 */
>>>  #endif /* ATTRIBUTE_NO_SANITIZE_UNDEFINED */
>>>
>>> +/* Attribute 'nonstring' was valid as of gcc 8.  */
>>> +#ifndef ATTRIBUTE_NONSTRING
>>> +# if GCC_VERSION >= 8000
>>> +#  define ATTRIBUTE_NONSTRING __attribute__ ((nonstring))
>>
>> Uglify nonstring (as __nonstring__)?
> 
> Yes, that would be better.  I copied the immediately preceding
> ATTRIBUTE_NO_SANITIZE_UNDEFINED without thinking.
OK with uglification.

jeff


Re: ATTRIBUTE_NONSTRING

2018-04-30 Thread Pedro Alves
On 04/27/2018 02:41 AM, Alan Modra wrote:
> This patch adds ATTRIBUTE_NONSTRING, which will be used to curb
> -Wstringop-truncation warnings in binutils.  OK to apply?
> 
>   * ansidecl.h (ATTRIBUTE_NONSTRING): Define.

+1, FWIW.

Thanks,
Pedro Alves


Re: ATTRIBUTE_NONSTRING

2018-04-28 Thread Alan Modra
On Fri, Apr 27, 2018 at 06:24:28PM -0400, Hans-Peter Nilsson wrote:
> On Fri, 27 Apr 2018, Alan Modra wrote:
> 
> > This patch adds ATTRIBUTE_NONSTRING, which will be used to curb
> > -Wstringop-truncation warnings in binutils.  OK to apply?
> >
> > * ansidecl.h (ATTRIBUTE_NONSTRING): Define.
> >
> > diff --git a/include/ansidecl.h b/include/ansidecl.h
> > index c11daff..ec5f34d 100644
> > --- a/include/ansidecl.h
> > +++ b/include/ansidecl.h
> > @@ -283,6 +283,15 @@ So instead we use the macro below and test it against 
> > specific values.  */
> >  # endif /* GNUC >= 4.9 */
> >  #endif /* ATTRIBUTE_NO_SANITIZE_UNDEFINED */
> >
> > +/* Attribute 'nonstring' was valid as of gcc 8.  */
> > +#ifndef ATTRIBUTE_NONSTRING
> > +# if GCC_VERSION >= 8000
> > +#  define ATTRIBUTE_NONSTRING __attribute__ ((nonstring))
> 
> Uglify nonstring (as __nonstring__)?

Yes, that would be better.  I copied the immediately preceding
ATTRIBUTE_NO_SANITIZE_UNDEFINED without thinking.

-- 
Alan Modra
Australia Development Lab, IBM


Re: ATTRIBUTE_NONSTRING

2018-04-27 Thread Hans-Peter Nilsson
On Fri, 27 Apr 2018, Alan Modra wrote:

> This patch adds ATTRIBUTE_NONSTRING, which will be used to curb
> -Wstringop-truncation warnings in binutils.  OK to apply?
>
>   * ansidecl.h (ATTRIBUTE_NONSTRING): Define.
>
> diff --git a/include/ansidecl.h b/include/ansidecl.h
> index c11daff..ec5f34d 100644
> --- a/include/ansidecl.h
> +++ b/include/ansidecl.h
> @@ -283,6 +283,15 @@ So instead we use the macro below and test it against 
> specific values.  */
>  # endif /* GNUC >= 4.9 */
>  #endif /* ATTRIBUTE_NO_SANITIZE_UNDEFINED */
>
> +/* Attribute 'nonstring' was valid as of gcc 8.  */
> +#ifndef ATTRIBUTE_NONSTRING
> +# if GCC_VERSION >= 8000
> +#  define ATTRIBUTE_NONSTRING __attribute__ ((nonstring))

Uglify nonstring (as __nonstring__)?

brgds, H-P


ATTRIBUTE_NONSTRING

2018-04-26 Thread Alan Modra
This patch adds ATTRIBUTE_NONSTRING, which will be used to curb
-Wstringop-truncation warnings in binutils.  OK to apply?

* ansidecl.h (ATTRIBUTE_NONSTRING): Define.

diff --git a/include/ansidecl.h b/include/ansidecl.h
index c11daff..ec5f34d 100644
--- a/include/ansidecl.h
+++ b/include/ansidecl.h
@@ -283,6 +283,15 @@ So instead we use the macro below and test it against 
specific values.  */
 # endif /* GNUC >= 4.9 */
 #endif /* ATTRIBUTE_NO_SANITIZE_UNDEFINED */
 
+/* Attribute 'nonstring' was valid as of gcc 8.  */
+#ifndef ATTRIBUTE_NONSTRING
+# if GCC_VERSION >= 8000
+#  define ATTRIBUTE_NONSTRING __attribute__ ((nonstring))
+# else
+#  define ATTRIBUTE_NONSTRING
+# endif
+#endif
+
 /* We use __extension__ in some places to suppress -pedantic warnings
about GCC extensions.  This feature didn't work properly before
gcc 2.8.  */

-- 
Alan Modra
Australia Development Lab, IBM