214986 2020-07-30 13:41:36 -0700 Compute number of PAC bits from what the OS says its address space is 2020-08-01 14:47:03 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified REOPENED InRadar P2 Normal --- 215065 1 keith_miller keith_miller benjamin cdumez cmarcelo commit-queue ews-watchlist mark.lam msaboff saam tzagallo webkit-bug-importer oldest_to_newest 1676522 0 keith_miller 2020-07-30 13:41:36 -0700 Compute number of PAC bits from what the OS says its address space is 1676526 1 405609 keith_miller 2020-07-30 13:45:09 -0700 Created attachment 405609 Patch 1676541 2 405609 saam 2020-07-30 14:11:57 -0700 Comment on attachment 405609 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=405609&action=review > Source/WTF/wtf/PtrTag.h:34 > +#if CPU(ARM64E) && __has_include(<mach/arm/vm_param.h>) I feel like this should be DARWIN based, w/ an assert we have the header 1676542 3 405609 saam 2020-07-30 14:15:43 -0700 Comment on attachment 405609 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=405609&action=review > Source/WTF/wtf/PtrTag.h:36 > +constexpr unsigned maximumNumberOfPointerAuthenticationBits = 64 - getMSBSetConstexpr(MACH_VM_MAX_ADDRESS_RAW); is this off by 1? 1676560 4 saam 2020-07-30 14:36:21 -0700 I suggested to Keith to just do 64 - OS_CONSTANT(EFFECTIVE_ADDRESS_WIDTH) 1676564 5 405622 keith_miller 2020-07-30 14:39:58 -0700 Created attachment 405622 Patch for landing 1676565 6 keith_miller 2020-07-30 14:40:05 -0700 (In reply to Saam Barati from comment #4) > I suggested to Keith to just do 64 - OS_CONSTANT(EFFECTIVE_ADDRESS_WIDTH) Done. 1676590 7 ews-feeder 2020-07-30 15:26:06 -0700 Committed r265113: <https://trac.webkit.org/changeset/265113> All reviewed patches have been landed. Closing bug and clearing flags on attachment 405622. 1676593 8 webkit-bug-importer 2020-07-30 15:27:24 -0700 <rdar://problem/66350659> 1676623 9 ryanhaddad 2020-07-30 16:24:22 -0700 This change broke the Windows build, as EWS predicted: C:\cygwin\worker\win10-release\build\WebKitBuild\Release\DerivedSources\ForwardingHeaders\wtf/CagedPtr.h(43,1): error C2220: the following warning is treated as an error [C:\cygwin\worker\win10-release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor.vcxproj] C:\cygwin\worker\win10-release\build\Source\JavaScriptCore\runtime\ArrayBuffer.h(61): message : see reference to class template instantiation 'WTF::CagedPtr<Gigacage::Primitive,void,true,WTF::DumbPtrTraits<T>>' being compiled [C:\cygwin\worker\win10-release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor.vcxproj] C:\cygwin\worker\win10-release\build\Source\JavaScriptCore\runtime\ArrayBuffer.h(61): message : with [C:\cygwin\worker\win10-release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor.vcxproj] C:\cygwin\worker\win10-release\build\Source\JavaScriptCore\runtime\ArrayBuffer.h(61): message : [ [C:\cygwin\worker\win10-release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor.vcxproj] C:\cygwin\worker\win10-release\build\Source\JavaScriptCore\runtime\ArrayBuffer.h(61): message : T=void [C:\cygwin\worker\win10-release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor.vcxproj] C:\cygwin\worker\win10-release\build\Source\JavaScriptCore\runtime\ArrayBuffer.h(61): message : ] [C:\cygwin\worker\win10-release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor.vcxproj] 1676652 10 keith_miller 2020-07-30 17:19:12 -0700 (In reply to Ryan Haddad from comment #9) > This change broke the Windows build, as EWS predicted: > C:\cygwin\worker\win10- > release\build\WebKitBuild\Release\DerivedSources\ForwardingHeaders\wtf/ > CagedPtr.h(43,1): error C2220: the following warning is treated as an error > [C:\cygwin\worker\win10- > release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor > .vcxproj] > C:\cygwin\worker\win10- > release\build\Source\JavaScriptCore\runtime\ArrayBuffer.h(61): message : see > reference to class template instantiation > 'WTF::CagedPtr<Gigacage::Primitive,void,true,WTF::DumbPtrTraits<T>>' being > compiled > [C:\cygwin\worker\win10- > release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor > .vcxproj] > C:\cygwin\worker\win10- > release\build\Source\JavaScriptCore\runtime\ArrayBuffer.h(61): message : > with > [C:\cygwin\worker\win10- > release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor > .vcxproj] > C:\cygwin\worker\win10- > release\build\Source\JavaScriptCore\runtime\ArrayBuffer.h(61): message : > [ > [C:\cygwin\worker\win10- > release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor > .vcxproj] > C:\cygwin\worker\win10- > release\build\Source\JavaScriptCore\runtime\ArrayBuffer.h(61): message : > T=void > [C:\cygwin\worker\win10- > release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor > .vcxproj] > C:\cygwin\worker\win10- > release\build\Source\JavaScriptCore\runtime\ArrayBuffer.h(61): message : > ] > [C:\cygwin\worker\win10- > release\build\WebKitBuild\Release\Source\JavaScriptCore\LLIntOffsetsExtractor > .vcxproj] Should be fixed with r265122. 1677155 11 commit-queue 2020-08-01 14:47:03 -0700 Re-opened since this is blocked by bug 215065 405609 2020-07-30 13:45:09 -0700 2020-07-30 14:39:55 -0700 Patch bug-214986-20200730134508.patch text/plain 3535 keith_miller U3VidmVyc2lvbiBSZXZpc2lvbjogMjY1MDczCmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwppbmRleCA5 NzA5Njg4NmU5OWE2NjE4Y2JiOGY1NTgyMDJkYzc4NmI3YmEzMzE2Li4zOTc5YmExZGQyZmVlNGJl 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