Richard Braun, on Wed 17 Aug 2016 14:55:35 +0200, wrote:
> On Wed, Aug 17, 2016 at 10:50:56AM +0200, Samuel Thibault wrote:
> > Mmm. This is a clobber, so it's supposed to indicate what is written,
> > not what is read :) But I agree with the "move" rationale, let's be safe
> > (it doesn't really
Olaf Buddenhagen, on Sat 30 Jul 2016 03:47:10 +0200, wrote:
> On Fri, Jul 29, 2016 at 06:30:09PM +, Luca wrote:
>
> > I need a way to translate logical addresses to physical,
>
> Is this for DMA or something along these lines? If so, the interface for
> allocating "contiguous memory" that
On Wed, Aug 17, 2016 at 10:50:56AM +0200, Samuel Thibault wrote:
> Mmm. This is a clobber, so it's supposed to indicate what is written,
> not what is read :) But I agree with the "move" rationale, let's be safe
> (it doesn't really matter here, there's a memory compiler barrier at the
> function
Hello,
On friday, I'll present the latest news of the Hurd.
What should I talk about? :)
Samuel
Aloha -
OK, I seem to have gotten a handle on this thing now.
First, there's a missing mutex unlock in mach_defpager. I'm attaching two
patches. One fixes the debug printfs in mach_defpager/default_pager.c,
which obviously haven't been compiled for a while. Use %p and %lx instead
of %x to
On Wed, Aug 17, 2016 at 08:46:34AM +0200, Samuel Thibault wrote:
> - Are we sure that the direction flag is cleared on entry of the assembly
> snippets?
Yes, gcc makes sure it's cleared on entry. See [1] for reference.
> - I don't think the memcmp, strlen and strcmp snippets need a memory
Samuel Thibault, on Wed 17 Aug 2016 08:46:34 +0200, wrote:
> - Are we sure that the direction flag is cleared on entry of the assembly
> snippets?
>
> - I don't think the memcmp, strlen and strcmp snippets need a memory clobber?
>
> - the ecx trick in strlen is nice :)
>
> - should we really
Richard Braun, on Fri 12 Aug 2016 21:29:09 +0200, wrote:
> I can take care of this when I have time.
Thanks!
- Are we sure that the direction flag is cleared on entry of the assembly
snippets?
- I don't think the memcmp, strlen and strcmp snippets need a memory clobber?
- the ecx trick in
On Wed, Aug 17, 2016 at 08:53:51AM +0200, Samuel Thibault wrote:
> - also, in strstr, is it really better to use strncmp instead of strcmp?
If I understand correctly, strcmp wouldn't behave right since it
compares the terminating null byte.
--
Richard Braun
Richard Braun, on Wed 17 Aug 2016 10:43:46 +0200, wrote:
> On Wed, Aug 17, 2016 at 08:46:34AM +0200, Samuel Thibault wrote:
> > - Are we sure that the direction flag is cleared on entry of the assembly
> > snippets?
>
> Yes, gcc makes sure it's cleared on entry. See [1] for reference.
Ok :)
> >
Richard Braun, on Wed 17 Aug 2016 10:46:10 +0200, wrote:
> On Wed, Aug 17, 2016 at 08:53:51AM +0200, Samuel Thibault wrote:
> > - also, in strstr, is it really better to use strncmp instead of strcmp?
>
> If I understand correctly, strcmp wouldn't behave right since it
> compares the terminating
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