From: Ard Biesheuvel
> Sent: 27 October 2020 20:57
>
> Commit 3193c0836f203 ("bpf: Disable GCC -fgcse optimization for
> ___bpf_prog_run()") introduced a __no_fgcse macro that expands to a
> function scope __attribute__((optimize("-fno-gcse"))), to disable a
> GCC specific optimization that was ca
Hi Ard,
On Tue, Oct 27, 2020 at 9:57 PM Ard Biesheuvel wrote:
> Commit 3193c0836f203 ("bpf: Disable GCC -fgcse optimization for
> ___bpf_prog_run()") introduced a __no_fgcse macro that expands to a
> function scope __attribute__((optimize("-fno-gcse"))), to disable a
> GCC specific optimization t
On Wed, 28 Oct 2020 at 00:04, Daniel Borkmann wrote:
>
> On 10/27/20 9:57 PM, Ard Biesheuvel wrote:
> > Commit 3193c0836f203 ("bpf: Disable GCC -fgcse optimization for
> > ___bpf_prog_run()") introduced a __no_fgcse macro that expands to a
> > function scope __attribute__((optimize("-fno-gcse"))),
On Wed, 28 Oct 2020 at 07:51, Ard Biesheuvel wrote:
>
> On Wed, 28 Oct 2020 at 00:04, Daniel Borkmann wrote:
> >
> > On 10/27/20 9:57 PM, Ard Biesheuvel wrote:
> > > Commit 3193c0836f203 ("bpf: Disable GCC -fgcse optimization for
> > > ___bpf_prog_run()") introduced a __no_fgcse macro that expand
On 10/27/20 9:57 PM, Ard Biesheuvel wrote:
Commit 3193c0836f203 ("bpf: Disable GCC -fgcse optimization for
___bpf_prog_run()") introduced a __no_fgcse macro that expands to a
function scope __attribute__((optimize("-fno-gcse"))), to disable a
GCC specific optimization that was causing trouble on
On Tue, 27 Oct 2020 at 23:03, Nick Desaulniers wrote:
>
> On Tue, Oct 27, 2020 at 2:50 PM Ard Biesheuvel wrote:
> >
> > On Tue, 27 Oct 2020 at 22:20, Nick Desaulniers
> > wrote:
> > >
> > > On Tue, Oct 27, 2020 at 1:57 PM Ard Biesheuvel wrote:
> > > >
> > > > diff --git a/include/linux/compile
On Tue, 27 Oct 2020 at 22:20, Nick Desaulniers wrote:
>
> On Tue, Oct 27, 2020 at 1:57 PM Ard Biesheuvel wrote:
> >
> > Commit 3193c0836f203 ("bpf: Disable GCC -fgcse optimization for
> > ___bpf_prog_run()") introduced a __no_fgcse macro that expands to a
> > function scope __attribute__((optimiz
Commit 3193c0836f203 ("bpf: Disable GCC -fgcse optimization for
___bpf_prog_run()") introduced a __no_fgcse macro that expands to a
function scope __attribute__((optimize("-fno-gcse"))), to disable a
GCC specific optimization that was causing trouble on x86 builds, and
was not expected to have any
