(Adding GCC's gcov maintainer Martin Liška)
On 10.09.2020 21:18, Linus Torvalds wrote:
> On Thu, Sep 10, 2020 at 5:52 AM Peter Oberparleiter
> wrote:
>>
>> Fix this by updating the in-kernel GCOV_COUNTERS value. Also re-enable
>> config GCOV_KERNEL for use with GCC 10.
>
> Lovely.
>
> Is there
On 10.09.2020 23:49, David Laight wrote:
> I was wondering what happens if files compiled with different
> versions of gcc get linked together?
This is not supported by GCC. At runtime libgcov will reject all data
from object files compiled with a different GCC version.
--
Peter Oberparleiter
Li
From: Linus Torvalds
> Sent: 10 September 2020 20:19
>
> On Thu, Sep 10, 2020 at 5:52 AM Peter Oberparleiter
> wrote:
> >
> > Fix this by updating the in-kernel GCOV_COUNTERS value. Also re-enable
> > config GCOV_KERNEL for use with GCC 10.
>
> Lovely.
>
> Is there some way we could see this va
On 10/09/2020 13:52, Peter Oberparleiter wrote:
> On 04.09.2020 17:58, Leon Romanovsky wrote:
>> GCOV built with GCC 10 doesn't initialize n_function variable.
>> This produces different kernel panics as was seen by Colin in
>> Ubuntu [1] and me in FC 32 [2].
>>
>> As a workaround, let's disable GC
On Thu, Sep 10, 2020 at 5:52 AM Peter Oberparleiter
wrote:
>
> Fix this by updating the in-kernel GCOV_COUNTERS value. Also re-enable
> config GCOV_KERNEL for use with GCC 10.
Lovely.
Is there some way we could see this value automatically, or at least
have a check for it? Right now it's that _v
On Thu, Sep 10, 2020 at 02:52:01PM +0200, Peter Oberparleiter wrote:
> On 04.09.2020 17:58, Leon Romanovsky wrote:
> > GCOV built with GCC 10 doesn't initialize n_function variable.
> > This produces different kernel panics as was seen by Colin in
> > Ubuntu [1] and me in FC 32 [2].
> >
> > As a wo
On 04.09.2020 17:58, Leon Romanovsky wrote:
> GCOV built with GCC 10 doesn't initialize n_function variable.
> This produces different kernel panics as was seen by Colin in
> Ubuntu [1] and me in FC 32 [2].
>
> As a workaround, let's disable GCOV build for broken GCC 10 version.
>
> [1] https://b
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