lkml.org 
[lkml]   [2010]   [Nov]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    Date
    SubjectRe: gcc 4.5.1 / as 2.20.51.0.11 miscompiling drivers/char/i8k.c ?
    On Mon, Nov 15, 2010 at 9:40 AM, Jim Bos <jim876@xs4all.nl> wrote:
    >
    > Hmm, that doesn't work.
    >
    > [ Not sure if you read to whole thread but initial workaround was to
    > change the asm(..) to asm volatile(..) which did work. ]

    Since I have a different gcc than yours (and I'm not going to compile
    my own), have you posted your broken .s file anywhere? In fact, with
    the noinline (and the removal of the "+m" thing - iow just the patch
    you tried), what does just the "i8k_smm" function assembly look like
    for you after you've done a "make drivers/char/i8k.s"?

    If the asm just doesn't exist AT ALL, that's just odd. Because every
    single call-site of i8k_smm() clearly looks at the return value. So
    the volatile really shouldn't make any difference from that
    standpoint. Odd.

    Linus


    \
     
     \ /
      Last update: 2010-11-15 19:13    [W:2.279 / U:0.112 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site