On 04/11/2016 11:16, John Paul Adrian Glaubitz wrote:
>> >
>> > If Haskell is compiled to use the "negative sp" trick that Richard
>> > mentioned, it would rely on the SH machine being uniprocessor. Try
>> > running chroot with "taskset -c 0".
> Doesn't help unfortunately, still either crashes
On 11/04/2016 11:13 AM, Paolo Bonzini wrote:
>> $ wget http://users.physik.fu-berlin.de/~glaubitz/sid-sh4-sbuild-ghc.tgz
>> $ tar xf sid-sh4-sbuild-ghc.tgz
>> (compile qemu with --target-list=sh4-linux-user --static)
>> $ cp -av qemu-sh4 sid-sh4-sbuild-ghc/usr/bin/qemu-sh4-static
>> $ chroot sid-sh
On 04/11/2016 11:00, John Paul Adrian Glaubitz wrote:
> On 11/04/2016 10:53 AM, Laurent Vivier wrote:
>> I think it's more likely a linux-user bug than a target-sh4 bug.
>>
>> As you report in a mail to me in February, "do_futex()" must be
>> protected against parallel execution for some futex co
On 11/04/2016 10:53 AM, Laurent Vivier wrote:
> I think it's more likely a linux-user bug than a target-sh4 bug.
>
> As you report in a mail to me in February, "do_futex()" must be
> protected against parallel execution for some futex commands.
FWIW, it works fine on qemu-user-armel last time I t
Le 04/11/2016 à 10:43, John Paul Adrian Glaubitz a écrit :
> On 11/04/2016 10:23 AM, John Paul Adrian Glaubitz wrote:
>> On 11/03/2016 05:21 PM, Laurent Vivier wrote:
>>> It should,:the problem was reported by Adrian (cc:) while compiling ghc
>>> in qemu-sh4, but I have just tested the functionalit
On 11/04/2016 10:23 AM, John Paul Adrian Glaubitz wrote:
> On 11/03/2016 05:21 PM, Laurent Vivier wrote:
>> It should,:the problem was reported by Adrian (cc:) while compiling ghc
>> in qemu-sh4, but I have just tested the functionality with the softmmu
>> version, not the atomicity.
>>
>> Adrian,
On 11/03/2016 05:21 PM, Laurent Vivier wrote:
> It should,:the problem was reported by Adrian (cc:) while compiling ghc
> in qemu-sh4, but I have just tested the functionality with the softmmu
> version, not the atomicity.
>
> Adrian, could you test this patch?
Will absolutely do that. Awesome to
On 2016-11-03 15:07, Laurent Vivier wrote:
> Implement real atomic tas:
>
> When (Rn) = 0, 1 -> T
> Otherwise, 0 -> T
> In both cases, 1 -> MSB of (Rn)
>
> using atomic_fetch_or_i32() and setcondi_i32().
>
> Tested with image from:
> http://wiki.qemu.org/download/sh-test-0.2.tar.bz2
On 11/03/2016 11:52 AM, Paolo Bonzini wrote:
UP kernel = no sane way to implement this in user-mode qemu?
Probably no straight-forward way, no.
Another possibility is to treat the load as a LL and the store as a SC
(implemented in turn with cmpxchg+branch if it fails). cmpxchg spans
two basi
On 03/11/2016 17:51, Richard Henderson wrote:
>>> Well, tas_test "runs without error with this change", I suppose it fails
>>> before? In other words, is this patch enough to run multithreaded sh4
>>> programs with qemu-user?
>>
>> It should,:the problem was reported by Adrian (cc:) while compil
Le 03/11/2016 à 17:21, Laurent Vivier a écrit :
> Le 03/11/2016 à 17:18, Paolo Bonzini a écrit :
>>
>>
>> On 03/11/2016 16:35, Laurent Vivier wrote:
>>> Le 03/11/2016 à 16:32, Paolo Bonzini a écrit :
On 03/11/2016 15:07, Laurent Vivier wrote:
> Implement real atomic tas:
>
>>
On 11/03/2016 10:21 AM, Laurent Vivier wrote:
Le 03/11/2016 à 17:18, Paolo Bonzini a écrit :
Well, tas_test "runs without error with this change", I suppose it fails
before? In other words, is this patch enough to run multithreaded sh4
programs with qemu-user?
It should,:the problem was repor
Le 03/11/2016 à 17:18, Paolo Bonzini a écrit :
>
>
> On 03/11/2016 16:35, Laurent Vivier wrote:
>> Le 03/11/2016 à 16:32, Paolo Bonzini a écrit :
>>>
>>>
>>> On 03/11/2016 15:07, Laurent Vivier wrote:
Implement real atomic tas:
When (Rn) = 0, 1 -> T
Otherwise, 0 -> T
>
On 03/11/2016 16:35, Laurent Vivier wrote:
> Le 03/11/2016 à 16:32, Paolo Bonzini a écrit :
>>
>>
>> On 03/11/2016 15:07, Laurent Vivier wrote:
>>> Implement real atomic tas:
>>>
>>> When (Rn) = 0, 1 -> T
>>> Otherwise, 0 -> T
>>> In both cases, 1 -> MSB of (Rn)
>>>
>>> using atomic_f
On 03/11/2016 15:07, Laurent Vivier wrote:
> Implement real atomic tas:
>
> When (Rn) = 0, 1 -> T
> Otherwise, 0 -> T
> In both cases, 1 -> MSB of (Rn)
>
> using atomic_fetch_or_i32() and setcondi_i32().
>
> Tested with image from:
> http://wiki.qemu.org/download/sh-test-0.2.tar.bz
Le 03/11/2016 à 16:32, Paolo Bonzini a écrit :
>
>
> On 03/11/2016 15:07, Laurent Vivier wrote:
>> Implement real atomic tas:
>>
>> When (Rn) = 0, 1 -> T
>> Otherwise, 0 -> T
>> In both cases, 1 -> MSB of (Rn)
>>
>> using atomic_fetch_or_i32() and setcondi_i32().
>>
>> Tested with ima
On 11/03/2016 08:07 AM, Laurent Vivier wrote:
Implement real atomic tas:
When (Rn) = 0, 1 -> T
Otherwise, 0 -> T
In both cases, 1 -> MSB of (Rn)
using atomic_fetch_or_i32() and setcondi_i32().
Tested with image from:
http://wiki.qemu.org/download/sh-test-0.2.tar.bz2
This image con
Implement real atomic tas:
When (Rn) = 0, 1 -> T
Otherwise, 0 -> T
In both cases, 1 -> MSB of (Rn)
using atomic_fetch_or_i32() and setcondi_i32().
Tested with image from:
http://wiki.qemu.org/download/sh-test-0.2.tar.bz2
This image contains a "tas_test" that runs without
error with
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