Ros-dev February 2014

ros-dev@reactos.org

16 participants
16 discussions

About hotpatchable dlls on ReactOS
by Hermès BÉLUSCA - MAÏTO 02 Mar '14

02 Mar '14

Hi guys ! It seems to appear that some games need standard APIs hotpatchable, in the sense of MS: few extra bytes present in the prologue of the functions that allow somebody to detour the API. I knew that this feature was useful for windows updates, but what I didnt know is that there are other programs that use it: see this answer from James on the Epic Win! forum thread: http://www.reactos.org/forum/viewtopic.php?f=2 <http://www.reactos.org/forum/viewtopic.php?f=2&t=10972&p=106823#p106814> &t=10972&p=106823#p106814 , and the following post is something that Ive found about this subject, and the fact that Wine already have done something about that. So my question: should we support/create hotpatchable images (of the standard dlls and maybe ?? exes) in ReactOS ? Is it already done ? If not, what needs to be added ? It seems that MSVC and GCC handle that a bit differently. Cheers, Hermès BÉLUSCA - MAÏTO

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Short Testman downtime tomorrow
by Colin Finck 28 Feb '14

28 Feb '14

Hi all, In the process of improving the performance of our website and finally getting rid of old.reactos.org, I'm moving away the Testman database to a new VM tomorrow. This will cause a short downtime, in which you're unable to browse Testman results or submit new ones. Even if something goes wrong during that process, the downtime shouldn't last longer than 2 hours. With best regards, Colin

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Status Meeting (February 2014)
by Aleksey Bragin 27 Feb '14

27 Feb '14

Hello, Let me invite you to the monthly status meeting taking place last Thursday of this month, 27th of February, 19:00 UTC. Put that into your calendars so you don't forget. And that's in two days! IRC service will only be started shortly before the meeting. Your participation passwords and server address will be emailed to you shortly before the meeting starts, and they are going to be different once again as they are not stored in any database. Hopefully it's not much of inconvenience. If someone still is not getting passwords sent before a meeting - please email Pierre before the meeting started to get one. The agenda will be posted shortly before the meeting, suggestions are welcome (send them to me shortly before the meeting starts). Regards, Aleksey Bragin

2 1

Fwd: [ReactOS Deutschland e.V.] Your organization application has been rejected.
by Amine Khaldi 24 Feb '14

24 Feb '14

-------- Original Message -------- Subject: [ReactOS Deutschland e.V.] Your organization application has been rejected. Date: Mon, 24 Feb 2014 18:40:28 +0000 From: no-reply(a)google-melange.appspotmail.com To: amine.khaldi(a)reactos.org Thank you for submitting ReactOS Deutschland e.V.'s application to Google Summer of Code 2014. Unfortunately, we were unable to accept your organization's application at this time. Every year we receive many more applications than we are able to accommodate, and we would encourage you to reapply for future instances of the program. If you would like some general feedback on why your organization was not accepted, please consider attending the IRC meeting in #gsoc on Freenode on Friday, 28 February, 2014 at 16:00 UTC. Please note that the feedback meeting will be limited to the first 50 organizations to queue up (queuing in the channel will begin at 15:30 UTC). Best regards,

2 2

VIA Embedded at Embedded World 2014
by Alexander Rechitskiy 24 Feb '14

24 Feb '14

Could somebody visit and represent ReactOS to VIA Embedded at Embedded World 2014? http://www.embedded-world.de/en/ February 25th - 27th in Nuremberg Germany -- Best regards, Alexander Rechitskiy

3 2

Changes on FishEye
by Colin Finck 22 Feb '14

22 Feb '14

Hi all, I've added the "project-tools" and "web" repositories to FishEye today, so you can browse through their changes as well now. My ultimate plan is to remove "CORE", "ROSAPPS" and "ROSTESTS" too and replace all of them by the already existing "reactos" repository. This resembles our SVN counterparts exactly. I was told this has already been tried in the past with no success due to severe performance issues. As FishEye is running on a more powerful server now, please try again and tell me if there are any problems with using "reactos" instead of "CORE". If not, I will get rid of the redundant repositories soon. Apart from this, we're now also using post-commit hooks to update the repositories in FishEye. This gives you instant information about new commits and reduces the server load a bit. Cheers, Colin

5 4

Commit 62283
by Hermès BÉLUSCA - MAÏTO 21 Feb '14

21 Feb '14

Sorry for IRC channel flood because of the huge commit log of r62283. As someone just suggested, I could have used indeed a Jira task for that /me apologises. Hermès.

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Re: [ros-dev] [ros-diffs] [tfaber] 62266: [CRT] - Force the use of memory operands in bit test intrinsics. Bit offsets above 31 (or 63) can't behave correctly with registers (the constant case is fine because it ensures low...
by Timo Kreuzer 20 Feb '14

20 Feb '14

While the bug was definately on our side, I still think there is a GCC/CLANG bug here as well. Memory operands larger than register size are a rare case (probably limited to the bittest instructions) but allowing a register operand here should cause the compiler to either error out or in the worst case emit something like "mov eax, [BaseAddress]; bt eax, cl;" or "mov eax, [PointerToBaseAddress]; mov eax, [eax]; bt eax, cl;" rather than "bt [PointerToBaseAddress], cl;", which it actually did. Changing the constraint to something that wasn't working changed the behaviour in a way that changed the level of dereference! The operation was done on the pointer instead of on the memory pointed to by the pointer! Maybe we should file a bugreport. Am 20.02.2014 20:28, schrieb tfaber(a)svn.reactos.org: > Author: tfaber > Date: Thu Feb 20 19:28:27 2014 > New Revision: 62266 > > URL: http://svn.reactos.org/svn/reactos?rev=62266&view=rev > Log: > [CRT] > - Force the use of memory operands in bit test intrinsics. Bit offsets above 31 (or 63) can't behave correctly with registers (the constant case is fine because it ensures low offsets). Thanks to Timo Kreuzer and Alex Radocea. > > Modified: > trunk/reactos/include/crt/mingw32/intrin_x86.h > > Modified: trunk/reactos/include/crt/mingw32/intrin_x86.h > URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/crt/mingw32/intrin… > ============================================================================== > --- trunk/reactos/include/crt/mingw32/intrin_x86.h [iso-8859-1] (original) > +++ trunk/reactos/include/crt/mingw32/intrin_x86.h [iso-8859-1] Thu Feb 20 19:28:27 2014 > @@ -1032,7 +1032,7 @@ > if(__builtin_constant_p(b)) > __asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "mr" (*(a + (b / 32))), [b] "Ir" (b % 32)); > else > - __asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "mr" (*a), [b] "r" (b)); > + __asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "m" (*a), [b] "r" (b)); > > return retval; > } > @@ -1045,7 +1045,7 @@ > if(__builtin_constant_p(b)) > __asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "mr" (*(a + (b / 64))), [b] "Ir" (b % 64)); > else > - __asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "mr" (*a), [b] "r" (b)); > + __asm__("bt %[b], %[a]; setb %b[retval]" : [retval] "=q" (retval) : [a] "m" (*a), [b] "r" (b)); > > return retval; > } > @@ -1058,7 +1058,7 @@ > if(__builtin_constant_p(b)) > __asm__("btc %[b], %[a]; setb %b[retval]" : [a] "+mr" (*(a + (b / 32))), [retval] "=q" (retval) : [b] "Ir" (b % 32)); > else > - __asm__("btc %[b], %[a]; setb %b[retval]" : [a] "+mr" (*a), [retval] "=q" (retval) : [b] "r" (b)); > + __asm__("btc %[b], %[a]; setb %b[retval]" : [a] "+m" (*a), [retval] "=q" (retval) : [b] "r" (b)); > > return retval; > } > @@ -1070,7 +1070,7 @@ > if(__builtin_constant_p(b)) > __asm__("btr %[b], %[a]; setb %b[retval]" : [a] "+mr" (*(a + (b / 32))), [retval] "=q" (retval) : [b] "Ir" (b % 32)); > else > - __asm__("btr %[b], %[a]; setb %b[retval]" : [a] "+mr" (*a), [retval] "=q" (retval) : [b] "r" (b)); > + __asm__("btr %[b], %[a]; setb %b[retval]" : [a] "+m" (*a), [retval] "=q" (retval) : [b] "r" (b)); > > return retval; > } > @@ -1082,7 +1082,7 @@ > if(__builtin_constant_p(b)) > __asm__("bts %[b], %[a]; setb %b[retval]" : [a] "+mr" (*(a + (b / 32))), [retval] "=q" (retval) : [b] "Ir" (b % 32)); > else > - __asm__("bts %[b], %[a]; setb %b[retval]" : [a] "+mr" (*a), [retval] "=q" (retval) : [b] "r" (b)); > + __asm__("bts %[b], %[a]; setb %b[retval]" : [a] "+m" (*a), [retval] "=q" (retval) : [b] "r" (b)); > > return retval; > } > > >

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Re: [ros-dev] [ros-diffs] [hbelusca] 62267: [KERNEL32] Revert r62264. Reason: all APIs set the last error when a CSR* call doesn't return STATUS_SUCCESS. If some winetests fail because of this, this is because we do not cor...
by Aleksey Bragin 20 Feb '14

20 Feb '14

Well, it would make sense to talk to Christoph first. It's not THAT obvious where the real bug is, and he might have been willing to try to find it and fix. Regards, Aleksey Bragin On 21.02.2014 0:17, hbelusca(a)svn.reactos.org wrote: > Author: hbelusca > Date: Thu Feb 20 20:17:53 2014 > New Revision: 62267 > > URL: http://svn.reactos.org/svn/reactos?rev=62267&view=rev > Log: > [KERNEL32] > Revert r62264. > Reason: all APIs set the last error when a CSR* call doesn't return STATUS_SUCCESS. If some winetests fail because of this, this is because we do not correctly do what's needed here (normally the TRUE or FALSE value is returned by the console server, and is not retrieved by a success or failure of a CSR call contrary to what's done here). > > Modified: > trunk/reactos/dll/win32/kernel32/client/console/console.c > > Modified: trunk/reactos/dll/win32/kernel32/client/console/console.c > URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/client/… > ============================================================================== > --- trunk/reactos/dll/win32/kernel32/client/console/console.c [iso-8859-1] (original) > +++ trunk/reactos/dll/win32/kernel32/client/console/console.c [iso-8859-1] Thu Feb 20 20:17:53 2014 > @@ -796,6 +796,7 @@ > sizeof(CONSOLE_VERIFYHANDLE)); > if (!NT_SUCCESS(Status)) > { > + BaseSetLastNTError(Status); > return FALSE; > } > > >

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Re: [ros-dev] [ros-diffs] [tkreuzer] 62249: [NTOSKRNL] Fix returned symbolic links in IoGetDeviceInterfaces.
by Alex Ionescu 19 Feb '14

19 Feb '14

Was this the Video Driver bug in ReactBox? Best regards, Alex Ionescu On Tue, Feb 18, 2014 at 11:53 AM, <tkreuzer(a)svn.reactos.org> wrote: > Author: tkreuzer > Date: Tue Feb 18 19:53:48 2014 > New Revision: 62249 > > URL: http://svn.reactos.org/svn/reactos?rev=62249&view=rev > Log: > [NTOSKRNL] > Fix returned symbolic links in IoGetDeviceInterfaces. > > Modified: > trunk/reactos/ntoskrnl/io/iomgr/deviface.c > > Modified: trunk/reactos/ntoskrnl/io/iomgr/deviface.c > URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/deviface… > ============================================================================== > --- trunk/reactos/ntoskrnl/io/iomgr/deviface.c [iso-8859-1] (original) > +++ trunk/reactos/ntoskrnl/io/iomgr/deviface.c [iso-8859-1] Tue Feb 18 19:53:48 2014 > @@ -466,7 +466,7 @@ > goto cleanup; > } > > - /* Enumerate subkeys (ie the different device objets) */ > + /* Enumerate subkeys (i.e. the different device objects) */ > while (TRUE) > { > Status = ZwEnumerateKey( > @@ -729,14 +729,17 @@ > Status = STATUS_UNSUCCESSFUL; > goto cleanup; > } > - KeyName.Length = KeyName.MaximumLength = (USHORT)bip->DataLength - 4 * sizeof(WCHAR); > - KeyName.Buffer = &((PWSTR)bip->Data)[4]; > + KeyName.Length = KeyName.MaximumLength = (USHORT)bip->DataLength; > + KeyName.Buffer = (PWSTR)bip->Data; > + > + /* Fixup the prefix (from "\\?\") */ > + RtlCopyMemory(KeyName.Buffer, L"\\??\\", 4 * sizeof(WCHAR)); > > /* Add new symbolic link to symbolic link list */ > if (ReturnBuffer.Length + KeyName.Length + sizeof(WCHAR) > ReturnBuffer.MaximumLength) > { > PWSTR NewBuffer; > - ReturnBuffer.MaximumLength = (USHORT)max(ReturnBuffer.MaximumLength * 2, > + ReturnBuffer.MaximumLength = (USHORT)max(ReturnBuffer.MaximumLength * sizeof(WCHAR), > (USHORT)(ReturnBuffer.Length + > KeyName.Length + > 2 * sizeof(WCHAR))); > >

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Ros-dev February 2014