| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: GCC 7 warnings |
| Date: | 2017-04-10 16:10:07 |
| Message-ID: | 20170410161007.msbvliyv447qtbez@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
Hi,
On 2017-04-10 11:03:23 -0400, Peter Eisentraut wrote:
> The release of GCC 7 is approaching [0], and the number of warnings in
> PostgreSQL has gone up since we last looked [1]. Output attached. (My
> version is 7.0.1 20170408.)
>
> Most of the issues have to do with concatenating two or more strings of
> potential size MAXPGPATH into another buffer of size MAXPGPATH, which
> could lead to truncation.
Hm, interesting - I don't see this with
gcc-7 (Debian 7-20170407-1) 7.0.1 20170407 (experimental) [trunk revision 246759]
although I do recall having seen them at some point. Not sure what's up
there.
I've to add -Wno-implicit-fallthrough to avoid noisyness, though.
Regards,
Andres
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