George Dunlap writes ("Re: [Xen-devel] [PATCH 2/2] tools: detect appropriate
debug optimization level"):
> On Wed, Apr 6, 2016 at 3:07 PM, Ian Jackson wrote:
> > Doug, would you like to, for now, propose a patch that uses -Og if it
> > is available, but otherwise falls
On Wed, Apr 6, 2016 at 3:07 PM, Ian Jackson wrote:
> Doug Goldstein writes ("[PATCH 2/2] tools: detect appropriate debug
> optimization level"):
>> The build should not use -O0 as that results in miscompilations. There
>> have been a few instances on the ML where users were told to switch
>> from
Doug Goldstein writes ("[PATCH 2/2] tools: detect appropriate debug
optimization level"):
> The build should not use -O0 as that results in miscompilations. There
> have been a few instances on the ML where users were told to switch
> from -O0 to -O1 or -O2 or to set debug=n and their issue went a
On Wed, Mar 30, 2016 at 5:00 PM, Ian Jackson wrote:
> Doug Goldstein writes ("Re: [PATCH 2/2] tools: detect appropriate debug
> optimization level"):
>> On 3/8/16 9:38 AM, Wei Liu wrote:
>> > On Mon, Mar 07, 2016 at 08:23:40PM -0600, Doug Goldstein wrote:
>> >> The build should not use -O0 as tha
Ian Jackson writes ("Re: [PATCH 2/2] tools: detect appropriate debug
optimization level"):
> My initial reaction is that I any actual problems are bugs either in
> the compiler or in Xen, which should be fixed.
>
> There should be nothing wrong with lack of inlining or dead code
> elimination. I
On 3/30/16 11:00 AM, Ian Jackson wrote:
> Doug Goldstein writes ("Re: [PATCH 2/2] tools: detect appropriate debug
> optimization level"):
>> On 3/8/16 9:38 AM, Wei Liu wrote:
>>> On Mon, Mar 07, 2016 at 08:23:40PM -0600, Doug Goldstein wrote:
The build should not use -O0 as that results in mi
Doug Goldstein writes ("Re: [PATCH 2/2] tools: detect appropriate debug
optimization level"):
> On 3/8/16 9:38 AM, Wei Liu wrote:
> > On Mon, Mar 07, 2016 at 08:23:40PM -0600, Doug Goldstein wrote:
> >> The build should not use -O0 as that results in miscompilations. There
> >
> > This needs some
On Tue, Mar 29, 2016 at 6:21 PM, Doug Goldstein wrote:
> On 3/29/16 6:44 AM, George Dunlap wrote:
>> On Mon, Mar 28, 2016 at 4:01 PM, Doug Goldstein wrote:
>>> On 3/16/16 2:14 PM, Doug Goldstein wrote:
On 3/8/16 10:50 AM, Wei Liu wrote:
> On Tue, Mar 08, 2016 at 10:34:42AM -0600, Doug Go
On 3/29/16 6:44 AM, George Dunlap wrote:
> On Mon, Mar 28, 2016 at 4:01 PM, Doug Goldstein wrote:
>> On 3/16/16 2:14 PM, Doug Goldstein wrote:
>>> On 3/8/16 10:50 AM, Wei Liu wrote:
On Tue, Mar 08, 2016 at 10:34:42AM -0600, Doug Goldstein wrote:
> On 3/8/16 9:38 AM, Wei Liu wrote:
>>
On Mon, Mar 28, 2016 at 4:01 PM, Doug Goldstein wrote:
> On 3/16/16 2:14 PM, Doug Goldstein wrote:
>> On 3/8/16 10:50 AM, Wei Liu wrote:
>>> On Tue, Mar 08, 2016 at 10:34:42AM -0600, Doug Goldstein wrote:
On 3/8/16 9:38 AM, Wei Liu wrote:
> On Mon, Mar 07, 2016 at 08:23:40PM -0600, Doug G
On 3/16/16 2:14 PM, Doug Goldstein wrote:
> On 3/8/16 10:50 AM, Wei Liu wrote:
>> On Tue, Mar 08, 2016 at 10:34:42AM -0600, Doug Goldstein wrote:
>>> On 3/8/16 9:38 AM, Wei Liu wrote:
On Mon, Mar 07, 2016 at 08:23:40PM -0600, Doug Goldstein wrote:
> The build should not use -O0 as that res
On 3/8/16 10:50 AM, Wei Liu wrote:
> On Tue, Mar 08, 2016 at 10:34:42AM -0600, Doug Goldstein wrote:
>> On 3/8/16 9:38 AM, Wei Liu wrote:
>>> On Mon, Mar 07, 2016 at 08:23:40PM -0600, Doug Goldstein wrote:
The build should not use -O0 as that results in miscompilations. There
>>>
>>> This need
On Tue, Mar 08, 2016 at 10:34:42AM -0600, Doug Goldstein wrote:
> On 3/8/16 9:38 AM, Wei Liu wrote:
> > On Mon, Mar 07, 2016 at 08:23:40PM -0600, Doug Goldstein wrote:
> >> The build should not use -O0 as that results in miscompilations. There
> >
> > This needs some (concrete) references. Is that
On 3/8/16 9:38 AM, Wei Liu wrote:
> On Mon, Mar 07, 2016 at 08:23:40PM -0600, Doug Goldstein wrote:
>> The build should not use -O0 as that results in miscompilations. There
>
> This needs some (concrete) references. Is that a known issue in gcc? If
> so can you reference the bug number?
So its n
On Mon, Mar 07, 2016 at 08:23:40PM -0600, Doug Goldstein wrote:
> The build should not use -O0 as that results in miscompilations. There
This needs some (concrete) references. Is that a known issue in gcc? If
so can you reference the bug number?
> have been a few instances on the ML where users w
The build should not use -O0 as that results in miscompilations. There
have been a few instances on the ML where users were told to switch
from -O0 to -O1 or -O2 or to set debug=n and their issue went away. The
preferred route should be to use -Og if its available, otherwise use
-O1 which is the de
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