[lkml]   [2013]   [Feb]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] arch: avr32: add dummy syscalls
On Mon, Feb 4, 2013 at 7:39 AM, Al Viro <> wrote:
> On Sun, Feb 03, 2013 at 09:35:39PM -0800, H?vard Skinnemoen wrote:
>> > But yes, 32bit/32bit/64bit/32bit is another interesting case -
>> > fanotify_mark is 32/32/64/32/32. From what ABI says it would seem to
>> > be r12/r11/r8:r9/r10/stack, but if I understand you correctly, we'll
>> > end up wanting *two* arguments on stack...
>> Yes, I think there may be a difference between the IAR and gcc ABI
>> here. But I could be wrong.
> So it will use the gap in case of 32/32/64/32; the first two calls will
> take index 0 and 1 (r12 and r11 resp.), the third will take 3 and 4
> (r9:r8) and the fourth will take 2 (r10).

Oh, cool. I guess I am wrong then. Thanks a lot for taking the time to
figure this out, and sorry I misled you.

If someone's got the toolchain installed (which I don't, sorry), it
should be relatively straightforward to verify this by looking at the
disassembly of a call to a function with a similar prototype.


 \ /
  Last update: 2013-02-04 18:06    [W:0.081 / U:2.832 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site