[lkml]   [2020]   [Sep]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [tip:x86/seves] BUILD SUCCESS WITH WARNING e6eb15c9ba3165698488ae5c34920eea20eaa38e
On Tue, Sep 15, 2020 at 2:50 PM Arvind Sankar <> wrote:
> On Tue, Sep 15, 2020 at 10:49:12PM +0200, Borislav Petkov wrote:
> >
> > (Btw, clang doesn't need to add that "xor %eax,%eax" - panic() should not be
> > returning, ever. :-))
> >
> I think this is because panic() is varargs, and clang doesn't support
> gcc's -mskip-rax-setup. The normal ABI requires the caller to set RAX to
> the number of arguments in vector registers.

Thanks for the report. Filed Do you have an account
there Arvind so that I can CC you on them?

Yikes, it looks like gcc 5.0 supports that. We'd better get to
implementing that lest someone try to remove the cc-option on it soon.
~Nick Desaulniers

 \ /
  Last update: 2020-09-16 00:03    [W:0.226 / U:0.732 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site