[FFmpeg-devel] GCC 5.1 warning: -Warray-bounds
gajjanag at mit.edu
Tue Jul 21 23:31:28 CEST 2015
On Tue, Jul 21, 2015 at 5:14 PM, Michael Niedermayer
<michael at niedermayer.cc> wrote:
> On Thu, Jun 25, 2015 at 01:25:08AM -0300, James Almer wrote:
>> On 04/06/15 6:55 PM, Ganesh Ajjanagadde wrote:
>> > I have created a small test case which gets at the heart of one of
>> > these spurious
>> > warnings, namely the one for libavfilter/vf_swapuv.c.
>> > Here is the ticket on the GCC Bugzilla:
>> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66422
>> > Note that as of the moment, -Warray-bounds appears quite broken on GCC
>> > (especially on -O3), and the bugzilla is full of bug reports on this.
>> For the record, these bogus warnings have been fixed on the gcc 5 branch.
> do any warnings remain for ffmpeg ?
> are they real issues or false positives as well ?
Most are gone, only two files trigger these, namely
libavformat/dvenc.c and libavcodec/dca_x11.c.
I have attached a logfile from the build and will investigate this to
see whether they are real or false positives.
> Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
> I am the wisest man alive, for I know one thing, and that is that I know
> nothing. -- Socrates
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