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Re: Flag to undo --enable-frame-pointer builds on i386
On 2017-08-16 12:09 +0200, Florian Weimer wrote:
> On 08/16/2017 12:01 PM, Xi Ruoyao wrote:
> > On 2017-08-16 10:01 +0200, Florian Weimer wrote:
> > > GCC for i386 can be configured with --enable-frame-pointer, which
> > > changes the frame pointer from disabled to enabled by default.
> > >
> > > Is there a command flag to undo that, changing the default back to a
> > > default of frame pointer omission?
> > >
> > > -fomit-frame-pointer is not that flag:
> > >
> > > gcc: error: -pg and -fomit-frame-pointer are incompatible
> >
> > Yes, you can't use -fomit-frame-pointer with -pg. A single
> > -fomit-frame-pointer should work.
>
> How so? I need to compile with -pg.
With Google I found an ancient patch:
<https://gcc.gnu.org/ml/gcc-patches/2008-10/msg00499.html>
And CC Andi to see if we can merge it.
> Thanks,
> Florian
>
>
--
Xi Ruoyao <ryxi@stu.xidian.edu.cn>
School of Aerospace Science and Technology, Xidian University