)]}'
{
  "log": [
    {
      "commit": "440b5d9bffafa46366f58599414e0cff35ea3a6a",
      "tree": "033967c68fff98790ba2ef6f84e31bcea36acbf0",
      "parents": [
        "f34077c96af3389e8eae65252d4c5d51cf630039"
      ],
      "author": {
        "name": "Alex Light",
        "email": "allight@google.com",
        "time": "Tue Jan 24 15:32:25 2017 -0800"
      },
      "committer": {
        "name": "Alex Light",
        "email": "allight@google.com",
        "time": "Wed Jan 25 09:58:30 2017 -0800"
      },
      "message": "Implement class-pre-define time redefinition.\n\nThis allows one to redefine classes as they are being loaded without\nrestriction as to the types of transformations that may be included.\nFor example one is allowed to add additional methods or fields to the\nclass being defined.\n\nBug: 31684920\nTest: mma -j40 test-art-host\nChange-Id: I671ee13444c05f28424e727fd80d9d46c78ca287\n"
    },
    {
      "commit": "a01de59eef990c07df9815376cd3c675e3acd481",
      "tree": "86f6ef41c13de572dc134956c836dd94c35d9d64",
      "parents": [
        "424c03aac25835febbf5c695b943206bc40ef335"
      ],
      "author": {
        "name": "Alex Light",
        "email": "allight@google.com",
        "time": "Tue Nov 15 10:43:06 2016 -0800"
      },
      "committer": {
        "name": "Alex Light",
        "email": "allight@google.com",
        "time": "Wed Nov 30 10:23:47 2016 -0800"
      },
      "message": "Infrastructure for obsolete methods\n\nThis adds some of the structures and functions needed to eventually\nsupport obsolete methods. Specifically this adds the code to create\nand iterate through the obsolete dex-cache maps of classes and\nre-organizes the redefinition code to be more sensible and extensible.\n\nBug: 32369913\nTest: ./test/run-test --host 902\nTest: mma -j40 test-art-host\n\nChange-Id: I93d60fa66e7512e8b059cdf42af8a56e93ef4bd7\n"
    },
    {
      "commit": "31e88225b2ef68e7f32f11186acf922c74ddabab",
      "tree": "ca50f60634854056bb652e7c375e5ccca2def5cd",
      "parents": [
        "602142692643d8cd2c48d9aaeece26470f702e3b"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Fri Oct 14 18:43:19 2016 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Mon Oct 17 11:36:39 2016 -0700"
      },
      "message": "Move most mirror:: args to ObjPtr\n\nFixed possible moving GC bugs in ClinitImageUpdate class.\n\nBug: 31113334\n\nTest: test-art-host\nChange-Id: I0bf6578553d58b944aaa17665f1350bdf5ed15ec\n"
    },
    {
      "commit": "1a5337fff2cc6cb9d563c8b32aca75f485d23373",
      "tree": "03616e90a91c5c4c1bd7ff03c3d193c3b24bf0db",
      "parents": [
        "c8b722b3cebff245d614e95d1849de45ef7bdf06"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Oct 13 13:48:23 2016 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Oct 13 17:37:56 2016 -0700"
      },
      "message": "Move mirror::ObjectArray to ObjPtr\n\nAlso reduce calls to ObjPtr::Ptr.\n\nBug: 31113334\n\nTest: test-art-host -j32\n\nChange-Id: I73e1b356972bb079b66332f00f7f07451601044e\n"
    },
    {
      "commit": "bdf7f1c3ab65ccb70f62db5ab31dba060632d458",
      "tree": "25cc77adfeb05232d0ab00aa561a693f1d71745c",
      "parents": [
        "d7eabc2cc1a88c1f7f927da61246ae65aab0626c"
      ],
      "author": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Tue Aug 30 16:38:47 2016 -0700"
      },
      "committer": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Tue Aug 30 17:02:53 2016 -0700"
      },
      "message": "ART: SHARED_REQUIRES to REQUIRES_SHARED\n\nThis coincides with the actual attribute name and upstream usage.\nPreparation for deferring to libbase.\n\nTest: m\nTest: m test-art-host\nChange-Id: Ia8986b5dfd926ba772bf00b0a35eaf83596d8518\n"
    },
    {
      "commit": "ba65cc4a71273904294245cb37ce70e5bce797e3",
      "tree": "d53a7a816ec4c8e5bdbf80729ac945787b27bf2c",
      "parents": [
        "1a827a05afbffd5bee241f245f9aa3c40b4dbae4",
        "542451cc546779f5c67840e105c51205a1b0a8fd"
      ],
      "author": {
        "name": "Treehugger Robot",
        "email": "treehugger-gerrit@google.com",
        "time": "Tue Aug 02 03:47:35 2016 +0000"
      },
      "committer": {
        "name": "Gerrit Code Review",
        "email": "noreply-gerritcodereview@google.com",
        "time": "Tue Aug 02 03:47:35 2016 +0000"
      },
      "message": "Merge \"ART: Convert pointer size to enum\""
    },
    {
      "commit": "542451cc546779f5c67840e105c51205a1b0a8fd",
      "tree": "11e09bb5abaee12dddffefbe7e425291076dfa7a",
      "parents": [
        "85c4a4b8c9eabfe16e4e49f9b4aa78c1bf4be023"
      ],
      "author": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Tue Jul 26 09:02:02 2016 -0700"
      },
      "committer": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Mon Aug 01 18:54:48 2016 -0700"
      },
      "message": "ART: Convert pointer size to enum\n\nMove away from size_t to dedicated enum (class).\n\nBug: 30373134\nBug: 30419309\nTest: m test-art-host\nChange-Id: Id453c330f1065012e7d4f9fc24ac477cc9bb9269\n"
    },
    {
      "commit": "d6636d3440efc68e1fa43f437ffbe77581096399",
      "tree": "8215236fcbd96189e3686366f352fd1936ad9e2d",
      "parents": [
        "ccee3363e385863de49e1b48a0ab191c94a7b433"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Jul 28 11:02:38 2016 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Jul 28 13:54:46 2016 -0700"
      },
      "message": "Avoid read barrier for IntArray::GetArrayClass\n\nChanged the code use Mark instead of read barrier, this showed an\nexisting lock violation and possible deadlock which was fixed.\nPrevent DCHECK failure from the assert.\n\nBug: 30469265\nTest: test-art-host with CC\n\nChange-Id: I275f953f06f6d13262043fc62eb88dca0356465a\n"
    },
    {
      "commit": "dfe02f6aafee264478d510b9742ee266ea52e8a8",
      "tree": "d56729901410de2b5cea9395c4686b49c38b245d",
      "parents": [
        "85fdcda926fbab0e5a7b3e8b3541f5d225b2bcdb"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Mon Feb 01 20:15:11 2016 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Tue Feb 02 15:43:05 2016 -0800"
      },
      "message": "Fix remaining read barrier issues in image relocation\n\nAdded a way to disallow read barriers, this makes it easy to find\nthe issues.\n\nBug: 26786304\nChange-Id: I7ebb50832686d03e096a979aae9741239371683f\n"
    },
    {
      "commit": "d329a3b6a77148839171132eb779577fe4b16cdd",
      "tree": "24b422aa499e8b95d8b750c4c3b8d3382917c9ca",
      "parents": [
        "78e90155b249588cb800e7f6e5993ebcbd465292"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Jan 27 15:30:10 2016 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Jan 27 16:22:14 2016 -0800"
      },
      "message": "Fix pointer conversion error in SetElementPtrSize\n\nSetElementPtrSize used to cast from pointer to uint64_t which\ncould sign extend with 32 bit dex2oat for 64 bit app image.\nAlso removed C style casts and added more logging.\n\nBug: 22858531\n\n(cherry picked from commit d22886357d4c53f74ca298faa7ad2555794e17e0)\n\nChange-Id: I479124328fbc497cfcae20c43b4b55827e446527\n"
    },
    {
      "commit": "4b00d3415beb7a816a3b5948f43f3b2e4b856ea8",
      "tree": "a54f8c2704fbe9b9ffebdc0f1984a777beb80ac0",
      "parents": [
        "991842a5273d20695dd5f35eb9a9e28c386c5b4b"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Fri Nov 13 10:42:08 2015 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Mon Nov 16 15:05:36 2015 -0800"
      },
      "message": "Refactor some patching logic\n\nReduce duplication since app images in-place relocation will require\nthis code also.\n\nBug: 22858531\nChange-Id: Ibb901b67267e27ef3bc2a0baff77189d4dcd018a\n"
    },
    {
      "commit": "0d5a281c671444bfa75d63caf1427a8c0e6e1177",
      "tree": "fd9bbe0f1c581bcc7c05bbfb2643ffe0b1fb014e",
      "parents": [
        "dd4cbcc924c8ba2a578914a4a366996693bdcd74"
      ],
      "author": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Fri Nov 13 10:07:31 2015 +0000"
      },
      "committer": {
        "name": "Roland Levillain",
        "email": "rpl@google.com",
        "time": "Sun Nov 15 12:16:41 2015 +0000"
      },
      "message": "x86/x86-64 read barrier support for concurrent GC in Optimizing.\n\nThis first implementation uses slow paths to instrument heap\nreference loads and GC root loads for the concurrent copying\ncollector, respectively calling the artReadBarrierSlow and\nartReadBarrierForRootSlow (new) runtime entry points.\n\nNotes:\n- This implementation does not instrument HInvokeVirtual\n  nor HInvokeInterface instructions (for class reference\n  loads), as the corresponding read barriers are not stricly\n  required with the current concurrent copying collector.\n- Intrinsics which may eventually call (on slow path) are\n  disabled when read barriers are enabled, as the current\n  slow path infrastructure does not support this case.\n- When read barriers are enabled, the code generated for a\n  HArraySet instruction always go into the array set slow\n  path for object arrays (delegating the operation to the\n  runtime), as we are lacking a mechanism to keep a\n  temporary register live accross a runtime call (needed for\n  the instrumentation of type checking code, which requires\n  two successive read barriers).\n\nBug: 12687968\nChange-Id: I14cd6107233c326389120336f93955b28ffbb329\n"
    },
    {
      "commit": "ed8990a467f3d93545221a33e43a9d34b1cc363f",
      "tree": "74e9fa58eb8582ed3ca81822d96d34d90bc62c59",
      "parents": [
        "bea4eb4b29aa1030aa1919dfedaa95aea2599b7a"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Jul 23 14:11:16 2015 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Jul 23 14:46:52 2015 -0700"
      },
      "message": "Add some more uninterruptible annotations\n\nAdded to mirror sites, class linker, and intern table.\n\nBug: 20072211\nChange-Id: I2224bcefefaab05d325f14844b1514e3d719e649\n"
    },
    {
      "commit": "4e2cb098017bf073335ebb02b1bc0a36828cd720",
      "tree": "7dfb6c7b71a747f31d2903c383423aac96a11591",
      "parents": [
        "f64914d7392b7d35c7f35bc917b0797b9c4605ac"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Jul 22 16:17:51 2015 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Jul 22 17:26:05 2015 -0700"
      },
      "message": "Add uninterruptible role\n\nExample error:\ncannot call function \u0027CopyOf\u0027 while mutex \u0027uninterruptible_\u0027 is held\n\nTODO: Add annotation to more locations.\n\nBug: 20072211\n\nChange-Id: I1bbf5a77e3deeafa5898df529cb7cb53a6d010d2\n"
    },
    {
      "commit": "90443477f9a0061581c420775ce3b7eeae7468bc",
      "tree": "8c74b81dfae162e0fd0ccf8d5ac50827ba815174",
      "parents": [
        "6078aec213dfaf111c29969706e8e5967cfc9bea"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Jul 16 20:32:27 2015 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Jul 22 15:13:56 2015 -0700"
      },
      "message": "Move to newer clang annotations\n\nAlso enable -Wthread-safety-negative.\n\nChanges:\nSwitch to capabilities and negative capabilities.\n\nFuture work:\nUse capabilities to implement uninterruptible annotations to work\nwith AssertNoThreadSuspension.\n\nBug: 20072211\n\nChange-Id: I42fcbe0300d98a831c89d1eff3ecd5a7e99ebf33\n"
    },
    {
      "commit": "e401d146407d61eeb99f8d6176b2ac13c4df1e33",
      "tree": "17927f9bfe7d2041b5942c89832d55f9dedb24c5",
      "parents": [
        "2006b7b9b8e32722bd0d640c62549d8a0ac624b6"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Apr 22 13:56:20 2015 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Fri May 29 18:45:49 2015 -0700"
      },
      "message": "Move mirror::ArtMethod to native\n\nOptimizing + quick tests are passing, devices boot.\n\nTODO: Test and fix bugs in mips64.\n\nSaves 16 bytes per most ArtMethod, 7.5MB reduction in system PSS.\nSome of the savings are from removal of virtual methods and direct\nmethods object arrays.\n\nBug: 19264997\nChange-Id: I622469a0cfa0e7082a2119f3d6a9491eb61e3f3d\n"
    },
    {
      "commit": "3b45ef277e4a5f7e0314d5df7ef82e480156ba75",
      "tree": "1df28568b9e7e4e50102b7f834fab6e943c444a5",
      "parents": [
        "c06841dac1443e99e92596f15caa82c99bfee010"
      ],
      "author": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Tue May 26 21:34:09 2015 -0700"
      },
      "committer": {
        "name": "Andreas Gampe",
        "email": "agampe@google.com",
        "time": "Wed May 27 08:24:03 2015 -0700"
      },
      "message": "ART: Fix VerifyObject runtime verification\n\nUpdate some bit-rotted code to work again. Most tests now work, for\nsome the verification overhead results in a timeout.\n\nChange-Id: Ieab4f2de474a05e915e24abc93da3c2eeed996eb\n"
    },
    {
      "commit": "c785344b87221f5e4e6473e5b762e4e61fe65dcf",
      "tree": "cd32ad2c2604596a18926f04d4c313dab255ecfd",
      "parents": [
        "a29d93b380c9aeb8270e281aefbdd0c77a430d43"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Fri Mar 27 14:35:38 2015 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Fri Apr 10 12:57:27 2015 -0700"
      },
      "message": "Move ArtField to native\n\nAdd linear alloc. Moved ArtField to be native object. Changed image\nwriter to put ArtFields after the mirror section.\n\nSavings:\n2MB on low ram devices\n4MB on normal devices\n\nTotal PSS measurements before (normal N5, 95s after shell start):\nImage size: 7729152 bytes\n23112 kB: .NonMoving\n23212 kB: .NonMoving\n22868 kB: .NonMoving\n23072 kB: .NonMoving\n22836 kB: .NonMoving\n19618 kB: .Zygote\n19850 kB: .Zygote\n19623 kB: .Zygote\n19924 kB: .Zygote\n19612 kB: .Zygote\nAvg: 42745.4 kB\n\nAfter:\nImage size: 7462912 bytes\n17440 kB: .NonMoving\n16776 kB: .NonMoving\n16804 kB: .NonMoving\n17812 kB: .NonMoving\n16820 kB: .NonMoving\n18788 kB: .Zygote\n18856 kB: .Zygote\n19064 kB: .Zygote\n18841 kB: .Zygote\n18629 kB: .Zygote\n3499 kB: .LinearAlloc\n3408 kB: .LinearAlloc\n3424 kB: .LinearAlloc\n3600 kB: .LinearAlloc\n3436 kB: .LinearAlloc\nAvg: 39439.4 kB\n\nNo reflection performance changes.\n\nBug: 19264997\nBug: 17643507\n\nChange-Id: I10c73a37913332080aeb978c7c94713bdfe4fe1c\n"
    },
    {
      "commit": "bb87e0f1a52de656bc77cb01cb887e51a0e5198b",
      "tree": "113f014c6e20fab3e936a3ac05f9f738639541f6",
      "parents": [
        "e57fc0f0260fcb1d08cbb720ec95c04c0f394b91"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Fri Apr 03 11:21:55 2015 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Mon Apr 06 10:44:37 2015 -0700"
      },
      "message": "Refactor and improve GC root handling\n\nChanged GcRoot to use compressed references. Changed root visiting to\nuse virtual functions instead of function pointers. Changed root visting\ninterface to be an array of roots instead of a single root at a time.\nAdded buffered root marking helper to avoid dispatch overhead.\n\nRoot marking seems a bit faster on EvaluateAndApplyChanges due to batch\nmarking. Pause times unaffected.\n\nMips64 is untested but might work, maybe.\n\nBefore:\nMarkConcurrentRoots: Sum: 67.678ms 99% C.I. 2us-664.999us Avg: 161.138us Max: 671us\n\nAfter:\nMarkConcurrentRoots: Sum: 54.806ms 99% C.I. 2us-499.986us Avg: 136.333us Max: 602us\n\nBug: 19264997\n\nChange-Id: I0a71ebb5928f205b9b3f7945b25db6489d5657ca\n"
    },
    {
      "commit": "2d2621a1463d2f3f03fa73503fa42e43657cdcfc",
      "tree": "1f7cf393693d72db5c186f99b04ac511958c6418",
      "parents": [
        "ac293277b69882105810fabd6c53f55de58823fe"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Oct 23 16:48:06 2014 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Mon Oct 27 16:49:43 2014 -0700"
      },
      "message": "Optimize method linking\n\nAdded more inlining, removed imt array allocation and replaced it\nwith a handle scope. Removed some un-necessary handle scopes.\n\nAdded logic to base interface method tables from the superclass so\nthat we dont need to reconstruct for every interface (large win).\n\nFacebook launch Dalvik KK MR2:\nTotalTime: 3165\nTotalTime: 3652\nTotalTime: 3143\nTotalTime: 3298\nTotalTime: 3212\nTotalTime: 3211\n\nFacebook launch TOT before:\nWaitTime: 3702\nWaitTime: 3616\nWaitTime: 3616\nWaitTime: 3687\nWaitTime: 3742\nWaitTime: 3767\n\nAfter optimizations:\nWaitTime: 2903\nWaitTime: 2953\nWaitTime: 2918\nWaitTime: 2940\nWaitTime: 2879\nWaitTime: 2792\n\nLinkInterfaceMethods no longer one of the hottest methods, new list:\n4.73% art::ClassLinker::LinkVirtualMethods(art::Thread*, art::Handle\u003cart::mirror::Class\u003e)\n3.07% art::DexFile::FindClassDef(char const*) const\n2.94% art::mirror::Class::FindDeclaredStaticField(art::mirror::DexCache const*, unsigned int)\n2.90% art::DexFile::FindStringId(char const*) const\n\nBug: 18054905\nBug: 16828525\n\n(cherry picked from commit 1fb463e42cf1d67595cff66d19c0f99e3046f4c4)\n\nChange-Id: I27cc70178fd3655fbe5a3178887fcba189d21321\n"
    },
    {
      "commit": "7e70b002c4552347ed1af8c002a0e13f08864f20",
      "tree": "79d5ee5444a5be70130d9a75dd51831c4b15687b",
      "parents": [
        "edc34c88b8f8abd04f9c4668787403608cf0b2d4"
      ],
      "author": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Wed Oct 08 11:47:24 2014 -0700"
      },
      "committer": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Wed Oct 08 11:57:59 2014 -0700"
      },
      "message": "Header file clean up.\n\nRemove runtime.h from object.h.\nMove TypeStaticIf to its own header file to avoid bringing utils.h into\nallocator.h.\nMove Array::DataOffset into -inl.h as it now has a utils.h dependency.\nFix include issues arising from this.\n\nChange-Id: I4605b1aa4ff5f8dc15706a0132e15df03c7c8ba0\n"
    },
    {
      "commit": "f0edfc355893d53d1104b05501c99ad5ccf305c4",
      "tree": "7e1fa49875759512f5d02b1c45435d3e3366b920",
      "parents": [
        "1ed5b27ee329208fd8ae22b8a9a61d708e2c1ffb"
      ],
      "author": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Thu Sep 25 11:46:46 2014 -0700"
      },
      "committer": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Thu Sep 25 15:53:54 2014 -0700"
      },
      "message": "Some optimizations for the array alloc path.\n\n- Force Array::Alloc() to be inlined.\n- Simplify the array size overflow check.\n- Turn fill_usable into a template parameter.\n- Remove a branch in Array::DataOffset() and avoid\n  Primitive::ComponentSize(), which has a switch, in the array alloc\n  path.\n- Strength reductions in the array size computation by using component\n  size shifts instead of component sizes. Store component size shift\n  in the upper 16 bits of primitive_type field.\n- Speedup: ~4% (3435-\u003e3284) in MemAllocTest on N4.\n\nBug: 9986565\n\nChange-Id: I4b142ffac4ab8b5b915836f1660a949d6442344c\n"
    },
    {
      "commit": "94f7b49578b6aaa80de8ffed230648d601393905",
      "tree": "cfc69e453faefee38178ceb85378e1f0f1e17812",
      "parents": [
        "8df73882c60451e7f789bf9b1f3db2d7dc228640"
      ],
      "author": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Tue Jul 22 18:08:23 2014 -0700"
      },
      "committer": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Tue Jul 29 13:30:46 2014 -0700"
      },
      "message": "Add GcRoot to clean up and enforce read barriers.\n\nIntroduce a value-type wrapper around Object* for GC roots so that 1)\nwe won\u0027t have to directly add the read barrier code in many places and\n2) we can avoid accidentally bypassing/missing read barriers on GC\nroots (the GcRoot interface ensures that the read barrier is executed\non a read).\n\nThe jdwp test passed.\n\nBug: 12687968\nChange-Id: Ib167c7c325b3c7e3900133578815f04d219972a1\n"
    },
    {
      "commit": "98d1cc8033251c93786e2fa8c59a2e555a9493be",
      "tree": "f0a76b8fff060ee484af09028da65a8339d57057",
      "parents": [
        "aebf3cda094f34cf846d19a7724bdc8005267c95"
      ],
      "author": {
        "name": "Mingyao Yang",
        "email": "mingyao@google.com",
        "time": "Thu May 15 17:02:16 2014 -0700"
      },
      "committer": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Fri Jul 11 17:17:10 2014 -0700"
      },
      "message": "Improve performance of invokevirtual/invokeinterface with embedded imt/vtable\n\nAdd an embedded version of imt/vtable into class object. Both tables start at\nfixed offset within class object so method/entry point can be loaded directly\nfrom class object for invokeinterface/invokevirtual.\n\nBug: 8142917\nChange-Id: I4240d58cfbe9250107c95c0708c036854c455968\n"
    },
    {
      "commit": "4f1ebc2b86c8467d1ecb3ec655316e6d7ee8b8b5",
      "tree": "59a2e44c7dbe82811f56657c43d99f1111c75f26",
      "parents": [
        "5703029de6c56c6f85b3ecbd4e2eee80e025772d"
      ],
      "author": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Wed Jun 25 14:30:41 2014 -0700"
      },
      "committer": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Fri Jun 27 15:09:19 2014 -0700"
      },
      "message": "Add read barriers to the constant roots.\n\nThis change makes it possible to concurrently scan the constant roots\n(the roots visited by Runtime::VisitConstantRoots()) such as the class\nof java.lang.Class by adding read barriers.\n\nBug: 12687968\nChange-Id: If1afea471c4e1093688d2db37b7f1fc2742edeef\n"
    },
    {
      "commit": "0cd81352a7c06e381951cea1b104fd73516f4341",
      "tree": "fcc8ff9cdeb608d0913097aa1fb64d1879f11ffa",
      "parents": [
        "dfd301f19800a4f168283cf2d0b15b2c09071955"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu May 22 16:48:55 2014 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Fri May 23 12:55:45 2014 -0700"
      },
      "message": "Revert \"Revert \"Fix an outstanding compaction bug in interpreter.\"\"\n\nFixed the generic trampoline to not use ToJObject when unnecessary.\n\nBug: 15167269\n\nThis reverts commit 3bdb873122964da7937eb070cbcf2ef638a8e459.\n\nChange-Id: I0525d0e0f3afb753c770e1572070a0fa22b02271\n"
    },
    {
      "commit": "3bdb873122964da7937eb070cbcf2ef638a8e459",
      "tree": "3d29123f33853e11adb67bdd6ac56f19ee798a1f",
      "parents": [
        "e09ae0920be57760fb390b6944bce420fa0b5582"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu May 22 22:06:51 2014 +0000"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu May 22 22:06:51 2014 +0000"
      },
      "message": "Revert \"Fix an outstanding compaction bug in interpreter.\"\n\nThis reverts commit e09ae0920be57760fb390b6944bce420fa0b5582.\n\nChange-Id: I48036306130d5ccfec683d0dc3e9a642a02ee9c1\n"
    },
    {
      "commit": "e09ae0920be57760fb390b6944bce420fa0b5582",
      "tree": "acc40266093df4289ffb6728c979cafd6b5114d2",
      "parents": [
        "b8033db2a8dc6f7c7e29b1552177542964f56e44"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu May 15 12:39:19 2014 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu May 22 10:47:44 2014 -0700"
      },
      "message": "Fix an outstanding compaction bug in interpreter.\n\nFixed a bug in DoFieldPut where the FieldHelper GetType could cause\nthread suspension which would result in a stale obj.\n\nAdded more handles in the class linker to facilitate moving fiels\nand methods in the future.\n\nRemoved un-necessarly passing handle references since these are value\ntypes and don\u0027t need to be passed by reference.\n\nAdded a special NullHandle type which allows null handles without a\nhandle scope.\n\nChange-Id: I1b51723920a2e4f4f8b2907066f578a3e879fd5b\n"
    },
    {
      "commit": "cbfb8b2f30de46632d3499a838661765451845c5",
      "tree": "1c1e2bacb0dd16a7bb22cf26cbd7ad84d6a7f370",
      "parents": [
        "6099df8c0695a81a8f25c47ff801998b12d09d1b",
        "2d10b206f9d0b97396b7dadb9a6415cd39efd341"
      ],
      "author": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Wed May 14 19:09:45 2014 +0000"
      },
      "committer": {
        "name": "Gerrit Code Review",
        "email": "noreply-gerritcodereview@google.com",
        "time": "Wed May 14 19:09:45 2014 +0000"
      },
      "message": "Merge \"Ensure JNI primitive array type is appropriate.\""
    },
    {
      "commit": "2d10b206f9d0b97396b7dadb9a6415cd39efd341",
      "tree": "032625cf6175d1749739bca3c9d673b027ba92c1",
      "parents": [
        "6fb66a2bc4e1c0b7931101153e58714991237af7"
      ],
      "author": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Mon May 12 19:15:18 2014 -0700"
      },
      "committer": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Wed May 14 12:03:16 2014 -0700"
      },
      "message": "Ensure JNI primitive array type is appropriate.\n\nCheck the primitive array type for GetPrimitiveArray, ReleasePrimitiveArray,\nGetPrimitiveArrayRegion and SetPrimitiveArrayRegion matches the given array\ntype. Check the GetPrimitiveArrayCritical and ReleasePrimitiveArrayCritical are\ngiven a primitive array.\nAdd unit tests that null parameters lead to fatal errors, not crashes. Fix\nissues where CheckJNI assumed non-null arguments.\nTidy testing code via the use of nullptr. Add a few extra checks.\nEnsure arrays of void are not able to be created, use RI compatible\nNoClassDefError.\n\nBug: 14817823\n\nChange-Id: I9903bcd800d0da1988ced07f61fb97b783c5deab\n"
    },
    {
      "commit": "eb8167a4f4d27fce0530f6724ab8032610cd146b",
      "tree": "bcfeaf13ad78f2dd68466bbd0e20c71944f7e854",
      "parents": [
        "6fb66a2bc4e1c0b7931101153e58714991237af7"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed May 07 15:43:14 2014 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Tue May 13 14:45:54 2014 -0700"
      },
      "message": "Add Handle/HandleScope and delete SirtRef.\n\nDelete SirtRef and replaced it with Handle. Handles are value types\nwhich wrap around StackReference*.\n\nRenamed StackIndirectReferenceTable to HandleScope.\n\nAdded a scoped handle wrapper which wraps around an Object** and\nrestores it in its destructor.\n\nRenamed Handle::get -\u003e Get.\n\nBug: 8473721\n\nChange-Id: Idbfebd4f35af629f0f43931b7c5184b334822c7a\n"
    },
    {
      "commit": "6e83c172f385cb45dd13bbcf41d2df8e410828c6",
      "tree": "e2c2f4ee55cfd623ea9d363286b380213748e1e8",
      "parents": [
        "9a16f222cdf40e68b084316b6e768c14d4b9e020"
      ],
      "author": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Thu May 01 21:25:41 2014 -0700"
      },
      "committer": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Thu May 01 21:25:41 2014 -0700"
      },
      "message": "Replace the bool kDoReadBarrier template parameter with an enum.\n\nFix one kDoReadBarrier/kIsVolatile mixup in an Object::GetFieldObject\ncall.\n\nBug: 12687968\n\nChange-Id: I896b1137b21a20c0504abd2bf3fe6f83805f3300\n"
    },
    {
      "commit": "b0fa5dc7769c1e054032f39de0a3f6d6dd06f8cf",
      "tree": "839d13ebfa7170967dd9b4abd434b7abda53da99",
      "parents": [
        "948740c1938860df055ddc801f20fd1707331e38"
      ],
      "author": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Mon Apr 28 16:47:08 2014 -0700"
      },
      "committer": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Tue Apr 29 14:36:28 2014 -0700"
      },
      "message": "Force inlining on trivial accessors.\n\nMake volatility for GetFieldObject a template parameter.\nMove some trivial mirror::String routines to a -inl.h.\n\nBug: 14285442\n\nChange-Id: Ie23b11d4f18cb15a62c3bbb42837a8aaf6b68f92\n"
    },
    {
      "commit": "9103c86a98524e9ddfd14f8cee56e919f68eee9b",
      "tree": "69e64a2f618e10bb8f060cf7fb70c8e94dc43b50",
      "parents": [
        "f7933e7f295bfe61cb0baf89469581c563032e96"
      ],
      "author": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Tue Apr 22 13:51:07 2014 -0700"
      },
      "committer": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Tue Apr 22 14:26:21 2014 -0700"
      },
      "message": "More code for the read barrier support.\n\nMake it possible to disable the RB in Object::SizeOf() (and the\nfunctions it calls transitively) which the collector will need to call\nto get the size of an object when copying.\n\nAdd Object::AtomicSetReadBarrierPointer() for atomic write of a RB\npointer.\n\nBug: 12687968\nChange-Id: Ibedd252860ac7ccd17e4e7d71b377a8892b48ff0\n"
    },
    {
      "commit": "6fac447555dc94a935b78198479cce645c837b89",
      "tree": "bcf1449999084b1e1dec3dac287f6f3670d7eda0",
      "parents": [
        "7f0ff7e7fff82566bca5f9353eaa2c4f81f0671a"
      ],
      "author": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Tue Feb 25 17:01:10 2014 -0800"
      },
      "committer": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Wed Feb 26 16:38:22 2014 -0800"
      },
      "message": "Make allocations report usable size.\n\nWork-in-progress to allow arrays to fill usable size. Bug: 13028925.\nUse C++11\u0027s override keyword on GCC \u003e\u003d 2.7 to ensure that we override GC and\nallocator methods.\nMove initial mirror::Class set up into a Functor so that all allocated objects\nhave non-zero sizes. Use this property to assert that all objects are never\nlarger than their usable size.\nOther bits of GC related clean-up, missing initialization, missing use of\nconst, hot methods in .cc files, \"unimplemented\" functions that fail at\nruntime in header files, reducing header file includes, move valgrind\u0027s space\ninto its own files, reduce number of array allocation routines.\n\nChange-Id: Id5760041a2d7f94dcaf17ec760f6095ec75dadaa\n"
    },
    {
      "commit": "4e30541a92381fb280cd0be9a1763b713ee4d64c",
      "tree": "84093651bbf0ad95b66b846c4f4cf4101994037b",
      "parents": [
        "e266ba9935bd12d685d83f73cd8d759e46c3014d"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Feb 19 10:54:44 2014 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Fri Feb 21 15:24:04 2014 -0800"
      },
      "message": "Fix and optimize verify object.\n\nVerifyObject no longer resides in heap. You can now enable\nVerifyObject for non-debug builds. VerifyStack is still slow, so it\nis now guarded by its own flag.\n\nFixed the image writer to not use verification at places where\nverification fails due to invalid reads.\n\nFixed RosAlloc to use SizeOf which doesn\u0027t call verify object.\n\nAdded a flag paremeter to some of the mirror getters / setters to\nbe able to selectively disable VerifyObject on certain calls.\n\nOptimized the GC to not verify each object multiple times during\nobject scanning if verify object is enabled.\n\nAdded 3 verification options: verify reads, verify this, and verify\nwrites so that you can select how much verification you want for\nmirror getters and setters.\n\nRemoved some useless DCHECKs which would slow debug builds without\nproviding any benefits.\n\nTODO: RosAlloc verification doesn\u0027t currently work with verify\nobjects.\n\nBug: 12934910\nBug: 12879358\n\nChange-Id: Ic61033104dfc334543f89b0fc0ad8cd4f4015d69\n"
    },
    {
      "commit": "d2fe10a3a34af171bf1631219cd2d6ff6b7778b5",
      "tree": "b6b7eb8eba23a5c2723518da99c03bf47b97f58a",
      "parents": [
        "5a3f55ad9519e87c0d3bbddaf3d8a186a887a79b"
      ],
      "author": {
        "name": "Sebastien Hertz",
        "email": "shertz@google.com",
        "time": "Wed Jan 15 10:20:56 2014 +0100"
      },
      "committer": {
        "name": "Sebastien Hertz",
        "email": "shertz@google.com",
        "time": "Mon Feb 17 11:32:15 2014 +0100"
      },
      "message": "Remove blacklist\n\nRemoves the class initialization blacklist and use transaction to detect and\nrevert class initialization attempting to invoke native method. This only\nconcerns class initialization happening at compilation time when generating an\nimage (like boot.art for the system).\n\nIn transactional mode, we log every object\u0027s field assignment and array update.\nTherefore we\u0027re able to abort a transaction to restore values of fields and\narray as they were before the transaction starts. We also log changes to the\nintern string table so we can restore its state prior to transaction start.\n\nSince transactional mode only happens at compilation time, we don\u0027t need to log\nall these changes at runtime. In order to reduce the overhead of testing if\ntransactional mode is on/off, we templatize interfaces of mirror::Object and\nmirror::Array, respectively responsible for setting a field and setting an\narray element.\n\nFor various reasons, we skip some specific fields from transaction:\n- Object\u0027s class and array\u0027s length must remain unchanged so garbage collector\ncan compute object\u0027s size.\n- Immutable fields only set during class loading: list of fields, method,\ndex caches, vtables, ... as all classes have been loaded and verified before a\ntransaction occurs.\n- Object\u0027s monitor for performance reason.\n\nBefore generating the image, we browse the heap to collect objects that need to\nbe written into it. Since the heap may still holds references to unreachable\nobjects due to aborted transactions, we trigger one collection at the end of\nthe class preinitialization phase.\n\nSince the transaction is held by the runtime and all compilation threads share\nthe same runtime, we need to ensure only one compilation thread has exclusive\naccess to the runtime. To workaround this issue, we force class initialization\nphase to run with only one thread. Note this is only done when generating image\nso application compilation is not impacted. This issue will be addressed in a\nseparate CL.\n\nBug: 9676614\nChange-Id: I221910a9183a5ba6c2b99a277f5a5a68bc69b5f9\n"
    },
    {
      "commit": "83c8ee000d525017ead8753fce6bc1020249b96a",
      "tree": "d5167ed15dee2629905ac3640b6ea0578d4ae312",
      "parents": [
        "7cba217ab0661d74deccbb97160cdf60b74d4ea3"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Tue Jan 28 14:50:23 2014 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Tue Feb 11 10:40:10 2014 -0800"
      },
      "message": "Add root types and thread id to root visiting.\n\nEnables us to pass the root type and thread id to hprof.\n\nBug: 12680863\nChange-Id: I6a0f1f9e3aa8f9b4033d695818ae7ca3460d67cb\n"
    },
    {
      "commit": "5bb99037bef70784ae4630c2e4b81688d2a18621",
      "tree": "7c01146719c9bd445f983d470980206952d8719b",
      "parents": [
        "9c7f35435b51cdeae8665aabb8e63392105db787"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Sat Feb 08 16:20:58 2014 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Sat Feb 08 16:26:12 2014 -0800"
      },
      "message": "Fix CreateMultiArray to be compaction safe.\n\nIt used to be compaction safe before moving classes was enabled.\nAdded missing SIRTs.\n\nChange-Id: I92963ed71fa6d2a20d16ec0e400b8fa0e41ac196\n"
    },
    {
      "commit": "ef7d42fca18c16fbaf103822ad16f23246e2905d",
      "tree": "c67eea52a349c2ea7f2c3bdda8e73933c05531a8",
      "parents": [
        "822115a225185d2896607eb08d70ce5c7099adef"
      ],
      "author": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Mon Jan 06 12:55:46 2014 -0800"
      },
      "committer": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Thu Feb 06 23:20:27 2014 -0800"
      },
      "message": "Object model changes to support 64bit.\n\nModify mirror objects so that references between them use an ObjectReference\nvalue type rather than an Object* so that functionality to compress larger\nreferences can be captured in the ObjectRefererence implementation.\nObjectReferences are 32bit and all other aspects of object layout remain as\nthey are currently.\n\nExpand fields in objects holding pointers so they can hold 64bit pointers. Its\nexpected the size of these will come down by improving where we hold compiler\nmeta-data.\nStub out x86_64 architecture specific runtime implementation.\nModify OutputStream so that reads and writes are of unsigned quantities.\nMake the use of portable or quick code more explicit.\nTemplatize AtomicInteger to support more than just int32_t as a type.\nAdd missing, and fix issues relating to, missing annotalysis information on the\nmutator lock.\nRefactor and share implementations for array copy between System and uses\nelsewhere in the runtime.\nFix numerous 64bit build issues.\n\nChange-Id: I1a5694c251a42c9eff71084dfdd4b51fff716822\n"
    },
    {
      "commit": "abff6439db28fbbed95490bfff7e24d1fdf5b771",
      "tree": "6ed749056b1d2e29f2bdf81c13e80e15849e9836",
      "parents": [
        "7ea5dafc81b2bba7cabad26130bb75dc8f709803"
      ],
      "author": {
        "name": "Sebastien Hertz",
        "email": "shertz@google.com",
        "time": "Mon Jan 27 18:01:39 2014 +0100"
      },
      "committer": {
        "name": "Sebastien Hertz",
        "email": "shertz@google.com",
        "time": "Tue Jan 28 18:18:14 2014 +0100"
      },
      "message": "Refactor array access for the interpreter.\n\nAdds GetWithoutChecks and SetWithoutChecks methods in PrimitiveArray and use\nthem in the interpreter. Updates Get and Set methods to rely on them and adds\nsome DCHECK to control exception flow.\n\nRenames IsValidIndex into CheckIsValidIndex to reflect it can throw an\nexception. It\u0027s also more consistent with ObjectArray::CheckIsAssignable.\n\nMake ThrowArrayIndexOutOfBoundsException private in Array since it\u0027s only used\nby Array::CheckIsValidIndex.\n\nUpdates DoFilledNewArray to use SetWithoutChecks rather than Set.\n\nChange-Id: I2fd314d77a67cf969843d499b86d04ca7b7a43e6\n"
    },
    {
      "commit": "c528dba35b5faece51ca658fc008b688f8b690ad",
      "tree": "d95c113a639d07f7e3b88e8a6caa9b5f6e044801",
      "parents": [
        "76f552307ee980221626d1dff0ada56c989d24ca"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Tue Nov 26 12:00:11 2013 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Tue Dec 10 16:00:58 2013 -0800"
      },
      "message": "Enable moving classes.\n\nSlight reduction in Zygote size, memory savings are in the noise.\nBefore: Zygote size: 8739224\nAfter: Zygote size: 8733568\n\nFixed a bug where we didn\u0027t set the concurrent start bytes after\nswitching the allocator from bump pointer to ROSAlloc in the\nzygote. This caused excessive memory usage.\n\nAdded the method verifiers as roots to fix an issue caused by\nRegTypes holding a Class*.\n\nAdded logic to clear card table in the SemiSpace collector, this\nreduces DalvikOther from ~2400k -\u003e ~1760k when using the SemiSpace\ncollector.\n\nAdded a missing lock to the timing loggers which caused a rare\none time crash in std::set.\n\nBug: 11771255\nBug: 8499494\nBug: 10802951\n\nChange-Id: I99d2b528cd51c1c5ed7012e3220b3aefded680ae\n"
    },
    {
      "commit": "cbb2d20bea2861f244da2e2318d8c088300a3710",
      "tree": "9735d496716cf165ea0ee2d7e2f62d723ffc7734",
      "parents": [
        "d31fb9718a6180304cd951619dc36be8e090a641"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Nov 14 17:45:16 2013 -0800"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Nov 20 11:14:11 2013 -0800"
      },
      "message": "Refactor allocation entrypoints.\n\nAdds support for switching entrypoints during runtime. Enables\naddition of new allocators with out requiring significant copy\npaste. Slight speedup on ritzperf probably due to more inlining.\n\nTODO: Ensuring that the entire allocation path is inlined so\nthat the switch statement in the allocation code is optimized\nout.\n\nRosalloc measurements:\n4583\n4453\n4439\n4434\n4751\n\nAfter change:\n4184\n4287\n4131\n4335\n4097\n\nChange-Id: I1352a3cbcdf6dae93921582726324d91312df5c9\n"
    },
    {
      "commit": "590fee9e8972f872301c2d16a575d579ee564bee",
      "tree": "b02db45c72f1911ec896b93379ada0276aea3199",
      "parents": [
        "5b70680b8df6d8fa95bb8e1070d0107f3d388940"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Fri Sep 13 13:46:47 2013 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Mon Nov 11 15:34:27 2013 -0800"
      },
      "message": "Compacting collector.\n\nThe compacting collector is currently similar to semispace. It works by\ncopying objects back and forth between two bump pointer spaces. There\nare types of objects which are \"non-movable\" due to current runtime\nlimitations. These are Classes, Methods, and Fields.\n\nBump pointer spaces are a new type of continuous alloc space which have\nno lock in the allocation code path. When you allocate from these it uses\natomic operations to increase an index. Traversing the objects in the bump\npointer space relies on Object::SizeOf matching the allocated size exactly.\n\nRuntime changes:\nJNI::GetArrayElements returns copies objects if you attempt to get the\nbacking data of a movable array. For GetArrayElementsCritical, we return\ndirect backing storage for any types of arrays, but temporarily disable\nthe GC until the critical region is completed.\n\nAdded a new runtime call called VisitObjects, this is used in place of\nthe old pattern which was flushing the allocation stack and walking\nthe bitmaps.\n\nChanged image writer to be compaction safe and use object monitor word\nfor forwarding addresses.\n\nAdded a bunch of added SIRTs to ClassLinker, MethodLinker, etc..\n\nTODO: Enable switching allocators, compacting on background, etc..\n\nBug: 8981901\n\nChange-Id: I3c886fd322a6eef2b99388d19a765042ec26ab99\n"
    },
    {
      "commit": "3b4c18933c24b8a33f38573c2ebcdb9aa16efeb5",
      "tree": "5298ccd9c1f1f6b329c0cb6cefac6a8df43dd633",
      "parents": [
        "f7e090ebcded6d6693894c018d89c4add79253ff"
      ],
      "author": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Thu Sep 12 21:33:12 2013 -0700"
      },
      "committer": {
        "name": "Hiroshi Yamauchi",
        "email": "yamauchi@google.com",
        "time": "Wed Sep 25 20:28:49 2013 -0700"
      },
      "message": "Split the allocation path into \u0027instrumented\u0027 and \u0027uninstrumented\u0027\nones.\n\nThe instrumented path is equivalent to the existing allocation path\nthat checks for three instrumentation mechanisms (the debugger\nallocation tracking, the runtime allocation stats collection, and\nvalgrind) for every allocation. The uinstrumented path does not\nperform these checks. We use the uninstrumented path by default and\nenable the instrumented path only when any of the three mechanisms is\nenabled. The uninstrumented version of Heap::AllocObject() is inlined.\n\nThis change improves the Ritz MemAllocTest by ~4% on Nexus 4 and ~3%\non Host/x86.\n\nBug: 9986565\nChange-Id: I3e68dfff6789d77bbdcea98457b694e1b5fcef5f\n"
    },
    {
      "commit": "66d1aeefed5b7af9e0682b2f298390b86b18e657",
      "tree": "9cfd927890f0f5ece91e6cfbab5ba435e97a10e0",
      "parents": [
        "08524597899d0bb021c9165218deff51dc88da50"
      ],
      "author": {
        "name": "Sebastien Hertz",
        "email": "shertz@google.com",
        "time": "Tue Jul 23 11:59:01 2013 +0200"
      },
      "committer": {
        "name": "Sebastien Hertz",
        "email": "shertz@google.com",
        "time": "Tue Jul 23 11:59:01 2013 +0200"
      },
      "message": "Unsigned comparison for array bounds check.\n\nThe interpreter calls Array::IsValidIndex for aget/aput instructions. Instead\nof doing two signed comparisons, we now do one unsigned comparison. The Quick\nand Portable compilers already do this.\n\nChange-Id: I635a1a3cc8a793fd2ceaf1432d3b3f712d8e85bf\n"
    },
    {
      "commit": "fc0e3219edc9a5bf81b166e82fd5db2796eb6a0d",
      "tree": "5fc7f5b941724a62f8e3411df09fae431ff5e3cf",
      "parents": [
        "56d947fbc9bc2992e2f93112fafb73e50d2aaa7a"
      ],
      "author": {
        "name": "Brian Carlstrom",
        "email": "bdc@google.com",
        "time": "Wed Jul 17 14:40:12 2013 -0700"
      },
      "committer": {
        "name": "Brian Carlstrom",
        "email": "bdc@google.com",
        "time": "Wed Jul 17 16:49:05 2013 -0700"
      },
      "message": "Fix multiple inclusion guards to match new pathnames\n\nChange-Id: Id7735be1d75bc315733b1773fba45c1deb8ace43\n"
    },
    {
      "commit": "7940e44f4517de5e2634a7e07d58d0fb26160513",
      "tree": "ac90242d96229a6942f6e24ab137bc1f8f2e0025",
      "parents": [
        "5cd9e3b122f276f610980cbaf0d2ad6ed4cd9088"
      ],
      "author": {
        "name": "Brian Carlstrom",
        "email": "bdc@google.com",
        "time": "Fri Jul 12 13:46:57 2013 -0700"
      },
      "committer": {
        "name": "Brian Carlstrom",
        "email": "bdc@google.com",
        "time": "Fri Jul 12 17:49:01 2013 -0700"
      },
      "message": "Create separate Android.mk for main build targets\n\nThe runtime, compiler, dex2oat, and oatdump now are in seperate trees\nto prevent dependency creep.  They can now be individually built\nwithout rebuilding the rest of the art projects. dalvikvm and jdwpspy\nwere already this way. Builds in the art directory should behave as\nbefore, building everything including tests.\n\nChange-Id: Ic6b1151e5ed0f823c3dd301afd2b13eb2d8feb81\n"
    },
    {
      "commit": "9897be996580db9de86f880f9ad9d36c66057a52",
      "tree": "e45bfd56f1d1aa640682e2ac8c5b83d0a5941a79",
      "parents": [
        "48fcf64a2d8ecc993e64d7b349b10d3b066724ae"
      ],
      "author": {
        "name": "Sebastien Hertz",
        "email": "shertz@google.com",
        "time": "Thu Jun 27 18:24:46 2013 +0200"
      },
      "committer": {
        "name": "Sebastien Hertz",
        "email": "shertz@google.com",
        "time": "Thu Jun 27 18:24:46 2013 +0200"
      },
      "message": "Make Array\u0027s throw routines void.\n\nThe \"bool\" return type of Array::ThrowArrayIndexOutOfBoundsException and\nArray::ThrowArrayStoreException is useless. Make them void.\n\nNote on ARM, this removes a \"cmp\" instruction in AGET/APUT instructions.\n\nChange-Id: I843e895aa4622ca56aaa3f2eb2d5b5100a92c1ae\n"
    },
    {
      "commit": "9cec247849c248f6c45a14eae5414b69eb8fc67d",
      "tree": "844d6fe7a5551356223c30be1955664bd0c802cd",
      "parents": [
        "e652cdd8f64d8479c9b7558f177dcee0bf6d026c"
      ],
      "author": {
        "name": "Jeff Hao",
        "email": "jeffhao@google.com",
        "time": "Tue May 14 18:17:06 2013 -0700"
      },
      "committer": {
        "name": "Jeff Hao",
        "email": "jeffhao@google.com",
        "time": "Tue May 14 18:17:06 2013 -0700"
      },
      "message": "Various improvements to interpreter.\n\n- Created separate Next_xxx methods to get the next instruction to\n  avoid having to look up the size based on the opcode.\n- Moved exception handling to after throwing instructions only.\n- Added a test of all thread flags before checking for suspend during\n  the interpreter execute loop.\n- Made it unlikely that instrumentation has dex pc listeners for\n  DexPcMovedEvent.\n\nChange-Id: I88afc98cf42f2e36c747582df8e74669d24ef864\n"
    },
    {
      "commit": "2dd0e2cea360bc9206eb88ecc40d259e796c239d",
      "tree": "9d619dc9508cbe73e4793bf6f08cbc761abfb48a",
      "parents": [
        "ac21b797b3a425975d656d6b84a7b24401d35f42"
      ],
      "author": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Thu Jan 24 12:42:14 2013 -0800"
      },
      "committer": {
        "name": "Ian Rogers",
        "email": "irogers@google.com",
        "time": "Wed Jan 30 16:48:31 2013 -0800"
      },
      "message": "Directory restructuring of object.h\n\nBreak object.h into constituent files.\nReduce number of #includes in other GC header files.\nIntroduce -inl.h files to avoid mirror files #include-ing each other.\nCheck invariants of verifier RegTypes for all constructors.\n\nChange-Id: Iecf1171c02910ac152d52947330ef456df4043bc\n"
    }
  ]
}