142749 2015-03-16 14:45:32 -0700 Windows X86-64 should use the fixed executable allocator 2015-03-17 02:34:10 -0700 1 1 1 Unclassified WebKit JavaScriptCore 312.x Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 msaboff msaboff benjamin cmarcelo commit-queue oldest_to_newest 1077571 0 msaboff 2015-03-16 14:45:32 -0700 Windows currently uses the demand based executable allocator. Using the demand based allocator can result in executable memory in various parts of the address space. Currently, the JSC JITs expect that all JIT'ed addresses is within a 32 bit offset of each other. The demand executable allocator cannot provide such a guarantee, therefore Windows X86-64 should use the fixed allocator like the rest of the X86-64 platforms. <rdar://problem/19804738> 1077572 1 248750 msaboff 2015-03-16 14:47:33 -0700 Created attachment 248750 Patch 1077576 2 msaboff 2015-03-16 14:55:10 -0700 Looks like the Windows implementation of the fixed allocator is not complete. More work to do. 1077688 3 248780 msaboff 2015-03-16 19:09:19 -0700 Created attachment 248780 Updated patch 1077829 4 248780 commit-queue 2015-03-17 02:34:05 -0700 Comment on attachment 248780 Updated patch Clearing flags on attachment: 248780 Committed r181628: <http://trac.webkit.org/changeset/181628> 1077830 5 commit-queue 2015-03-17 02:34:10 -0700 All reviewed patches have been landed. Closing bug. 248750 2015-03-16 14:47:33 -0700 2015-03-16 19:09:19 -0700 Patch 142749.patch text/plain 1332 msaboff SW5kZXg6IFNvdXJjZS9XVEYvQ2hhbmdlTG9nCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIFNvdXJjZS9XVEYvQ2hh bmdlTG9nCShyZXZpc2lvbiAxODE1NzgpCisrKyBTb3VyY2UvV1RGL0NoYW5nZUxvZwkod29ya2lu ZyBjb3B5KQpAQCAtMSwzICsxLDEyIEBACisyMDE1LTAzLTE2ICBNaWNoYWVsIFNhYm9mZiAgPG1z YWJvZmZAYXBwbGUuY29tPgorCisgICAgICAgIFdpbmRvd3MgWDg2LTY0IHNob3VsZCB1c2UgdGhl IGZpeGVkIGV4ZWN1dGFibGUgYWxsb2NhdG9yCisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQu b3JnL3Nob3dfYnVnLmNnaT9pZD0xNDI3NDkKKworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkg KE9PUFMhKS4KKworICAgICAgICAqIHd0Zi9QbGF0Zm9ybS5oOgorCiAyMDE1LTAzLTE2ICBDc2Fi YSBPc3p0cm9nb27DoWMgIDxvc3N5QHdlYmtpdC5vcmc+CiAKICAgICAgICAgW0FSTV0gRW5hYmxl IGdlbmVyYXRpbmcgaWRpdiBpbnN0cnVjdGlvbnMgaWYgaXQgaXMgc3VwcG9ydGVkCkluZGV4OiBT b3VyY2UvV1RGL3d0Zi9QbGF0Zm9ybS5oCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 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02:34:05 -0700 Updated patch 142749-2.patch text/plain 6488 msaboff SW5kZXg6IFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291 cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkocmV2aXNpb24gMTgxNjA0KQorKysgU291cmNl L0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDE2IEBA CisyMDE1LTAzLTE2ICBNaWNoYWVsIFNhYm9mZiAgPG1zYWJvZmZAYXBwbGUuY29tPgorCisgICAg ICAgIFdpbmRvd3MgWDg2LTY0IHNob3VsZCB1c2UgdGhlIGZpeGVkIGV4ZWN1dGFibGUgYWxsb2Nh dG9yCisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xNDI3 NDkKKworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICBBZGRl ZCBqaXQvRXhlY3V0YWJsZUFsbG9jYXRvckZpeGVkVk1Qb29sLmNwcCB0byBXaW5kb3dzIGJ1aWxk LgorCisgICAgICAgICogSmF2YVNjcmlwdENvcmUudmN4cHJvai9KYXZhU2NyaXB0Q29yZS52Y3hw cm9qOgorICAgICAgICAqIEphdmFTY3JpcHRDb3JlLnZjeHByb2ovSmF2YVNjcmlwdENvcmUudmN4 cHJvai5maWx0ZXJzOgorICAgICAgICAqIGppdC9FeGVjdXRhYmxlQWxsb2NhdG9yRml4ZWRWTVBv 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