55368 2011-02-28 05:49:07 -0800 Fix alignment warnings in ARMv7 2012-02-03 12:59:20 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) PC OS X 10.5 RESOLVED FIXED P2 Normal --- 1 xan.lopez rwlbuis barraclough chutten efidler loki manyoso oliver ossy rwlbuis ryuan.choi staikos tonikitoo webkit.review.bot zherczeg oldest_to_newest 359004 0 xan.lopez 2011-02-28 05:49:07 -0800 ToT in ARMv7 has a lot of alignment related warnings, which makes really difficult any other kind of warning in the build. Attached patch uses reinterpret_cast_ptr macro in wtf/StdLibExtras to get rid of most of them, since in ARM this adjusts the alignment properly. 359015 1 84048 xan.lopez 2011-02-28 06:11:05 -0800 Created attachment 84048 alignment.diff 359831 2 84048 xan.lopez 2011-03-01 05:39:06 -0800 Comment on attachment 84048 alignment.diff OK, this fails in a few places in debug builds because there's an ASSERT checking the correctness of the cast that uses __alignof__, which needs the size of the class, which is not available in many places (since we forward declare instead of including the header). I'll see if I can either fix it for good or at least attach a patch with the easy fixes. 532199 3 rwlbuis 2012-01-09 07:48:04 -0800 Xan, any update? This seems useful since it may obscure more important warnings, like not returning a value in a method that should return a value. 536322 4 122580 rwlbuis 2012-01-15 19:16:11 -0800 Created attachment 122580 Patch 536323 5 rwlbuis 2012-01-15 19:18:25 -0800 Adapted patch to compile against HEAD. The use of reinterpret_cast_ptr for debug builds everywhere turned out to be hard (at the very least intrusive) to fix (the __alignof__ problem), so I chose static_cast in a few places. 536327 6 ryuan.choi 2012-01-15 19:25:21 -0800 *** Bug 60690 has been marked as a duplicate of this bug. *** 548954 7 122580 fpizlo 2012-02-03 12:39:37 -0800 Comment on attachment 122580 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=122580&action=review > Source/JavaScriptCore/heap/HandleTypes.h:38 > + static ExternalType getFromSlot(HandleSlot slot) { return (slot && *slot) ? reinterpret_cast<ExternalType>(static_cast<void*>(slot->asCell())) : 0; } What, exactly, are you getting by putting in this static_cast? 548971 8 rwlbuis 2012-02-03 12:55:26 -0800 (In reply to comment #7) > (From update of attachment 122580 [details]) > View in context: https://bugs.webkit.org/attachment.cgi?id=122580&action=review > > > Source/JavaScriptCore/heap/HandleTypes.h:38 > > + static ExternalType getFromSlot(HandleSlot slot) { return (slot && *slot) ? reinterpret_cast<ExternalType>(static_cast<void*>(slot->asCell())) : 0; } > > What, exactly, are you getting by putting in this static_cast? I am trying to emulate reinterpret_cast_ptr, which implicitly casts to void*, because actually using it and including StdLibExtras.h for these two files would mean including a lot more include files to fix build problems. In fact I gave up on that approach simply because there were so many files to fix. Cheers, Rob. 548978 9 122580 webkit.review.bot 2012-02-03 12:59:14 -0800 Comment on attachment 122580 Patch Clearing flags on attachment: 122580 Committed r106686: <http://trac.webkit.org/changeset/106686> 548979 10 webkit.review.bot 2012-02-03 12:59:20 -0800 All reviewed patches have been landed. Closing bug. 84048 2011-02-28 06:11:05 -0800 2012-01-15 19:15:11 -0800 alignment.diff alignment.diff text/plain 11504 xan.lopez RnJvbSAzYjA5NjEwMjcxNmM5MjM4ODhiOGEwNmViYzE2NzY2YzJjZmM4NjBmIE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBYYW4gTG9wZXogPHhsb3BlekBpZ2FsaWEuY29tPgpEYXRlOiBN b24sIDI4IEZlYiAyMDExIDE0OjUzOjE0ICswMTAwClN1YmplY3Q6IFtQQVRDSF0gMjAxMS0wMi0y OCAgWGFuIExvcGV6ICA8eGxvcGV6QGlnYWxpYS5jb20+CgogICAgICAgIFJldmlld2VkIGJ5IE5P Qk9EWSAoT09QUyEpLgoKICAgICAgICBGaXggYWxpZ25tZW50IHdhcm5pbmdzIGluIEFSTXY3CiAg ICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTU1MzY4CgogICAg ICAgIFVzZSByZWludGVycHJldF9jYXN0X3B0ciB0byBnZXQgcmlkIG9mIGFsaWdubWVudCBpc3N1 ZXMgaW4gQVJNdjcKICAgICAgICB0aHJvdWdoIEpTQy4KCiAgICAgICAgKiBhc3NlbWJsZXIvQVJN djdBc3NlbWJsZXIuaDoKICAgICAgICAoSlNDOjpBUk12N0Fzc2VtYmxlcjo6Y29tcHV0ZUp1bXBU eXBlKTogdXNlIHJlaW50ZXJwcmV0X2Nhc3RfcHRyCiAgICAgICAgZm9yIHByb3Blcmx5IGFsaWdu ZWQgY2FzdC4KICAgICAgICAoSlNDOjpBUk12N0Fzc2VtYmxlcjo6bGluayk6IGRpdHRvLgogICAg 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