This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: ATTRIBUTE_NONSTRING
- From: Jeff Law <law at redhat dot com>
- To: Alan Modra <amodra at gmail dot com>, Hans-Peter Nilsson <hp at bitrange dot com>
- Cc: gcc-patches at gcc dot gnu dot org, DJ Delorie <dj at redhat dot com>, Ian Lance Taylor <ian at airs dot com>
- Date: Tue, 1 May 2018 11:28:46 -0600
- Subject: Re: ATTRIBUTE_NONSTRING
- Autocrypt: addr=law at redhat dot com; prefer-encrypt=mutual; keydata= xsBNBFkbIO8BCACVIqDhDVh9ur8C+zNV1J/cXfwvVDAUcphDEFl4jyHqZORK4Pd3Db8oWqLm Q8lOCr/VOS7lrCtdpVMQkLGOGA16oJ8g7hzhnojpjY09UjsoUiG7oKacuxj8skfp6SIx93Zl +iNYPRa4S+za6nY8qiVjyUuiyX04ZPZMrKp2c2sGi+HnBKUZXGhrz/Jdzdox3tjajWZnObyy nhEN6hn9L3KawTtGPE/R6A/1RhHTD9FQmIWIeucpaY5c6GNKXTFpj2VYx57LY5hve1R5vhrJ IZcgwZAiOtmik5lVi96glY5h6bugRwpexjhwORTLPBCkwiYotSxX99mWd6EHL576i5CNABEB AAHNGUplZmYgTGF3IDxsYXdAcmVkaGF0LmNvbT7CwI4EEwEIADgWIQR+niGjtnP5P/8PpRq8 fP682pgzWwUCWRsg7wIbAwULCQgHAgYVCAkKCwIEFgIDAQIeAQIXgAAKCRC8fP682pgzW5QG B/9VATJmx5235RB+8jiDYGXQf3vd9gBfPy/l1tsaK400eFAevDzfGvKmeCKe+uGnlrH3vyT8 rg9zqH+s5a1Y+lDXPOpJAFmmzbOLU4FW4ucbawmtYvBL65PqpQneCTYnC802/OAcxjm/Onem HlgeK6WicNsBTPwYN/0araDFUejyYBIFi9CNqqflwk5Z3brKbQ9bAYIkysVLC/c3njKPmM0c WPFHG91ubLbWCHwTIK0+mAL714eTD74dXzOjO2ZDBPLGlFN/kO3+YjaO6UOD2O8acvAMCivT kWLr7JwRgLIQDN2DkhQDd3LTPqQE/yOcMcXBTO+fxm8KG0iKQBqWMyGJzsBNBFkbIO8BCACy qbOsv7XegSeea8XORt5zMaBVWKoSyhmmcCmlxZFS2cuYOBt79MO13lZE2DlO3Lv5IKikj/D4 ketGVO4+h5psEMH5Yz5P8bx0TmgwbK1GxPZrzeXozUFJDvvCDbIlT0v0pwUXuK3hg8Ieo2h5 uTed/cn1OjySXW5BqLxN0cyr5hL+J6dcsHvKLT/N3nTgCQhoJXK2MrEMhAGgF3jKpMn3CoS4 i/ZbNI2MQR6LWHwdZ95f0fI8NzHSfVzeLtzCKQec7nr9fgd6Ylk1ZpGWQUPlQmKjzYgeCeTK NO04cwt20WIrQWeWiZFPA0U86NDBdSBrYp4kG3dfIXE+wSSvE7qPABEBAAHCwHYEGAEIACAW IQR+niGjtnP5P/8PpRq8fP682pgzWwUCWRsg7wIbDAAKCRC8fP682pgzW3REB/9cT7iKRPg/ OK9bpLlllIEDM90IaKC79DQrv+fRudOR78cdV4XUwPSFnyHUsP3VJ4lDy5FhiKCwGie0BK53 EsxgMrLy1L8hboFdTE4Vi0xzCheMaMVp4hATDU29k1cuxu1VPpCa8E3mYeHjNV7ip0HN5L4D rfs8lRPJE/oM1vGs9DgQFZrCPPNRNGKC97BH+DHccesEJr7tSsQrkPkt0z/FTKr5wIM02vSx OJjgmcVbGB7dc2j/Sx8loXmuKnuKtM35668kUG8jeJvSQk3o/VHpD27bhl0rR68R2jN6G6kQ egMVb6dPu1Ius8rBE5rFw88J4JEb5q4hMNClWWUFHIdP
- Openpgp: preference=signencrypt
- References: <20180427014126.GN18288@bubble.grove.modra.org> <alpine.BSF.2.20.16.1804271823490.97924@arjuna.pair.com> <20180428062531.GQ18288@bubble.grove.modra.org>
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