On Jan 20 22:30, Takashi Yano via Cygwin wrote:
> On Fri, 20 Jan 2023 13:26:20 +0100
> Corinna Vinschen wrote:
> > On Jan 20 21:18, Takashi Yano via Cygwin wrote:
> > > On Fri, 20 Jan 2023 12:30:29 +0100
> > > Corinna Vinschen wrote:
> > > > Also, your ffplay executable isn't high-entropy-VA enabled, by any
> > > > chance?
> > >
> > > I'm sorry, but the high-entropy-va is ebabled.
> > >
> > > $ peflags -v /usr/bin/ff{mpeg,probe,play}
> > > /usr/bin/ffmpeg:
> > > coff(0x022e[+executable_image,+line_nums_stripped,+local_syms_stripped,+bigaddr,+sepdbg])
> > > pe(0x8160[+high-entropy-va,+dynamicbase,+nxcompat,+tsaware])
> > > /usr/bin/ffprobe:
> > > coff(0x022e[+executable_image,+line_nums_stripped,+local_syms_stripped,+bigaddr,+sepdbg])
> > > pe(0x8160[+high-entropy-va,+dynamicbase,+nxcompat,+tsaware])
> > > /usr/bin/ffplay:
> > > coff(0x022e[+executable_image,+line_nums_stripped,+local_syms_stripped,+bigaddr,+sepdbg])
> > > pe(0x8160[+high-entropy-va,+dynamicbase,+nxcompat,+tsaware])
> >
> > Btw., how did this happen? The native Cygwin compiler/linker combo
> > usually doesn't set the dynamicbase and high-entropy-VA flags by
> > default...
>
> Perhaps this is because configure of ffmpeg explicitly
> has the following lines:
>
> check_ldflags -Wl,--nxcompat,--dynamicbase
> check_ldflags -Wl,--high-entropy-va # binutils 2.25
Oh, ok. The configurey should only do that on native Windows builds.
> Removing these lines makes ff{mpeg,probe,play} disable
> both high-entropy-va and dynamicbase flags.
Great!
Thanks,
Corinna
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