On Wed, Jan 28, 2015 at 06:57:54AM -0500, Steven Rostedt wrote:
> On Wed, 28 Jan 2015 06:36:45 +0100
> Heiko Carstens wrote:
>
> > On Tue, Jan 27, 2015 at 09:42:28AM -0500, Steven Rostedt wrote:
> > > On Tue, 27 Jan 2015 07:19:42 +0100
> > > Dominik Vogt wrote:
> > >
> > > > While the kernel m
On Wed, 28 Jan 2015 13:18:33 +0100
Heiko Carstens wrote:
> Ok, then we'll put that on the s390 tree for the next merge window, so
> we can fix any potential fallout easier.
> I'll add your Acked-by to all three patches. The notrace patch is the
> only one that I changed (see below).
>
Yep, loo
On Wed, 28 Jan 2015 06:36:45 +0100
Heiko Carstens wrote:
> On Tue, Jan 27, 2015 at 09:42:28AM -0500, Steven Rostedt wrote:
> > On Tue, 27 Jan 2015 07:19:42 +0100
> > Dominik Vogt wrote:
> >
> > > While the kernel may use only profiling or hotpatch at the same
> > > time, Gcc is able to generat
On Tue, Jan 27, 2015 at 09:42:28AM -0500, Steven Rostedt wrote:
> On Tue, 27 Jan 2015 07:19:42 +0100
> Dominik Vogt wrote:
>
> > While the kernel may use only profiling or hotpatch at the same
> > time, Gcc is able to generate both for the same function.
>
> Understood, but would that be useful
On Tue, 27 Jan 2015 07:19:42 +0100
Dominik Vogt wrote:
> While the kernel may use only profiling or hotpatch at the same
> time, Gcc is able to generate both for the same function.
Understood, but would that be useful for the kernel?
-- Steve
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On Mon, Jan 26, 2015 at 09:37:01AM -0500, Steven Rostedt wrote:
> On Mon, 26 Jan 2015 13:54:53 +0100
> Heiko Carstens wrote:
> > s390 will use the hotpatch attribute for function tracing, therefore
> > introduce a nohotpatch define, depending on CC_USING_HOTPATCH, and add it
> > to the existing no
On Mon, Jan 26, 2015 at 10:22:26AM -0500, Steven Rostedt wrote:
> On Mon, 26 Jan 2015 16:03:19 +0100
> Heiko Carstens wrote:
>
> > Actually they should be mutually exclusive. I just merged them "just in
> > case".
> >
> > So something like this
> >
> > #ifdef CC_USING_HOTPATCH
> > #define notr
On Mon, 26 Jan 2015 16:03:19 +0100
Heiko Carstens wrote:
> Actually they should be mutually exclusive. I just merged them "just in case".
>
> So something like this
>
> #ifdef CC_USING_HOTPATCH
> #define notrace __attribute__((hotpatch(0,0)))
> #else
> #define notrace __attribute__((no_instrume
On Mon, Jan 26, 2015 at 09:37:01AM -0500, Steven Rostedt wrote:
> On Mon, 26 Jan 2015 13:54:53 +0100
> Heiko Carstens wrote:
>
> > gcc supports an s390 specific function attribute called "hotpatch".
> > It can be used to specify the number of halfwords that shall be added before
> > and after a f
On Mon, 26 Jan 2015 13:54:53 +0100
Heiko Carstens wrote:
> gcc supports an s390 specific function attribute called "hotpatch".
> It can be used to specify the number of halfwords that shall be added before
> and after a function that shall be filled with nops for runtime patching.
>
> s390 will
gcc supports an s390 specific function attribute called "hotpatch".
It can be used to specify the number of halfwords that shall be added before
and after a function that shall be filled with nops for runtime patching.
s390 will use the hotpatch attribute for function tracing, therefore
introduce
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