- Cvs-hugs - Haskell.org

WinHugs and Unicode
by Neil Mitchell 16 Sep '05

16 Sep '05

Hi, The new version of WinHugs is not unicode compliant, and is unlikely to be in time for the release. While its relatively easy to change it to be unicode compliant, unfortunately a lot of the useful unicode functions are only available on NT/2k/XP, and some are 98/ME/NT/2K/XP, but not 95. Because of this, its going to be difficult to ensure that a Unicode WinHugs works everywhere, the main problem being testing rather than coding. I may start sending some unicode patches over, so I can get WinHugs building in Unicode mode, since these are ignored when compiling in ANSI mode. The other question is to what degree Hugs in Unicode compliant? Are filenames etc. unicode based, or is it just the interaction? Thanks Neil

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cvs commit: hugs98/src builtin.c
by Ross Paterson 16 Sep '05

16 Sep '05

ross 2005/09/13 12:35:00 PDT Modified files: src builtin.c Log: cosmetic changes to adjustor stuff. Revision Changes Path 1.90 +93 -100 hugs98/src/builtin.c

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cvs commit: hugs98/src/winhugs DlgMain.c
by Ross Paterson 14 Sep '05

14 Sep '05

ross 2005/09/14 03:15:35 PDT Modified files: src/winhugs DlgMain.c Log: from Neil Mitchell: fix a sizeof() Revision Changes Path 1.11 +1 -1 hugs98/src/winhugs/DlgMain.c

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WinHugs, bugglet fix
by Neil Mitchell 14 Sep '05

14 Sep '05

Hi, There was a minor bugglet, not necessarily causing issues but certainly wrong. Its allocating an array with malloc(sizeof(Item) * Number), but Item accidentally refers to some totally unrelated structure because of a typo. Thanks Neil

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cvs commit: hugs98/src builtin.c
by Ross Paterson 13 Sep '05

13 Sep '05

ross 2005/09/13 08:28:53 PDT Modified files: src builtin.c Log: Another tilt at the Windows DEP problem: make the thunk_data RWX (though actually only the code part needs it). Revision Changes Path 1.89 +5 -3 hugs98/src/builtin.c

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WinHugs, make AutoReload the default
by Neil Mitchell 13 Sep '05

13 Sep '05

Hi, This patch makes automatic reloading of modified files the default behaviour under Windows. How this has not been the default behaviour always is beyond me, I know of noone who knows about this flag and has it turned off. Thanks Neil

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Fwd: cvs commit: hugs98/src builtin.c
by Brian Smith 12 Sep '05

12 Sep '05

On 9/11/05, Ross Paterson <ross(a)galois.com> wrote: > > steal a bit more of mallocBytesRWX() from GHC. > > Maybe this will fix the Windows DEP problem reported by Brian Smith. No, it didn't fix it. I think that the problem that needed fixed in GHCi was different than the problem with Hugs. With the GHCi error, the Windows DEP error dialog box would pop up, (I believe) asking the user to report the problem to Microsoft, and providing a button that opened up the DEP settings dialog box. In the Hugs error, the Windows DEP error dialog box never pops up. Instead, Hugs just reports that it received an unexpected signal. The signal it receives is SIGSEGV. - Brian

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Releasing WinHugs
by Neil Mitchell 12 Sep '05

12 Sep '05

Hi, With the patches that have been submitted, the bug list for WinHugs hits 0, see http://www.haskell.org/hawiki/NeilMitchell_2fHugsNotes . If anyone knows of any other bugs, or finds any, please let me know. If anyone thinks anything in the polish section is a bit more important also let me know. I think I'm ready for limited beta testing, so if anyone wants that also let me know. Also if anyone has any overall comments (I miss this, why did you change that, how do I do this, i can't see the use of that) I'd love to hear them. When does it suit to release WinHugs? It needs a bit longer for beta testing etc, but is a Hugs release being planned soon, or should WinHugs be released separately? How stable is the Hugs code base, i.e. is it release worthy? Thanks Neil

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cvs commit: hugs98/src builtin.c
by Ross Paterson 11 Sep '05

11 Sep '05

ross 2005/09/11 17:26:33 PDT Modified files: src builtin.c Log: steal a bit more of mallocBytesRWX() from GHC. Maybe this will fix the Windows DEP problem reported by Brian Smith. Revision Changes Path 1.88 +12 -4 hugs98/src/builtin.c

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Hugs on Windows, FFI
by Brian Smith 11 Sep '05

11 Sep '05

On 9/9/05, Neil Mitchell <ndmitchell(a)gmail.com> wrote: > > Hi, > > Running "make check" I get the following, dropping most of the > begining since it seems sensible enough. Apparently this should show > if FFI works on Windows? I noticed that your test results didn't include failures for Sparc.hs/Callback.hs/Sin.hs. After more investigation, I found that these tests only fail when Windows Data Execution Prevention (DEP) [1] is enabled. When I disable DEP for hugs.exe, these tests pass; when I enabled DEP then the tests fail. So, apparently the code that builds the thunks used for callbacks does not correctly set the executable/non-writable flags on the thunk after it is created. There was a very similar bug in GHCi/runghc that was fixed just a few weeks ago. I think the solution to this problem is probably simple for somebody familiar with the GHCi solution, or somebody familiar with the Windows memory management API's. But, failing a fix, we should at least note this problem in the release notes, and the installer should automatically disable DEP for hugs.exe, runhugs.exe, and WinHugs.exe. [1] http://support.microsoft.com/kb/875352 - Brian

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