)]}'
{
  "commit": "03d05e2d0765512fb960192b6e9f9a41c47282bd",
  "tree": "27dd7454641f6720883f750c2fc4fc03ad36c5fc",
  "parents": [
    "32b64e860d6e0887b3d2ad36a940c362646146f4"
  ],
  "author": {
    "name": "Peter Maydell",
    "email": "peter.maydell@linaro.org",
    "time": "Sat Jan 04 22:15:47 2014 +0000"
  },
  "committer": {
    "name": "Peter Maydell",
    "email": "peter.maydell@linaro.org",
    "time": "Wed Jan 08 19:07:20 2014 +0000"
  },
  "message": "target-arm: Widen exclusive-access support struct fields to 64 bits\n\nIn preparation for adding support for A64 load/store exclusive instructions,\nwiden the fields in the CPU state struct that deal with address and data values\nfor exclusives from 32 to 64 bits. Although in practice AArch64 and AArch32\nexclusive accesses will be generally separate there are some odd theoretical\ncorner cases (eg you should be able to do the exclusive load in AArch32, take\nan exception to AArch64 and successfully do the store exclusive there), and it\u0027s\nalso easier to reason about.\n\nThe changes in semantics for the variables are:\n exclusive_addr  -\u003e extended to 64 bits; -1ULL for \"monitor lost\",\n   otherwise always \u003c 2^32 for AArch32\n exclusive_val   -\u003e extended to 64 bits. 64 bit exclusives in AArch32 now\n   use the high half of exclusive_val instead of a separate exclusive_high\n exclusive_high  -\u003e is no longer used in AArch32; extended to 64 bits as\n   it will be needed for AArch64\u0027s pair-of-64-bit-values exclusives.\n exclusive_test  -\u003e extended to 64 bits, as it is an address. Since this is\n   a linux-user-only field, in arm-linux-user it will always have the top\n   32 bits zero.\n exclusive_info  -\u003e stays 32 bits, as it is neither data nor address, but\n   simply holds register indexes etc. AArch64 will be able to fit all its\n   information into 32 bits as well.\n\nNote that the refactoring of gen_store_exclusive() coincidentally fixes\na minor bug where ldrexd would incorrectly update the first CPU register\neven if the load for the second register faulted.\n\nSigned-off-by: Peter Maydell \u003cpeter.maydell@linaro.org\u003e\nReviewed-by: Richard Henderson \u003crth@twiddle.net\u003e\n",
  "tree_diff": [
    {
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      "old_mode": 33188,
      "old_path": "linux-user/main.c",
      "new_id": "20f9832d3899a901568cacc1b716b8357e5b05e8",
      "new_mode": 33188,
      "new_path": "linux-user/main.c"
    },
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      "old_path": "target-arm/cpu.h",
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      "new_path": "target-arm/cpu.h"
    },
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      "old_path": "target-arm/machine.c",
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      "new_path": "target-arm/machine.c"
    },
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      "old_mode": 33188,
      "old_path": "target-arm/translate.c",
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      "new_path": "target-arm/translate.c"
    }
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}