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{
  "commit": "d2b4f49047b9a3680e49fab70e460b62f4597524",
  "tree": "532bdc5df01fc9936e380c6c65bf50d27a92a481",
  "parents": [
    "c5497c10ba7fa170d350373fa103c0f7b899c988"
  ],
  "author": {
    "name": "Guinevere Larsen",
    "email": "blarsen@redhat.com",
    "time": "Tue Feb 20 18:27:32 2024 +0100"
  },
  "committer": {
    "name": "Guinevere Larsen",
    "email": "blarsen@redhat.com",
    "time": "Wed Feb 21 15:38:24 2024 +0100"
  },
  "message": "gdb: Migrate frame unwinders to use C++ classes\n\nFrame unwinders have historically been a structure populated with\ncallback pointers, so that architectures (or other specific unwinders)\ncould install their own way to handle the inferior. However, since\nmoving to c++, we could use polymorphism to get the same functionality\nin a more readable way. Polymorphism also makes it simpler to add new\nfunctionality to all frame unwinders, since all that\u0027s required is\nadding it to the base class.\n\nAs part of the changes to add support to disabling frame unwinders,\nthis commit makes the first baby step in  using polymorphism for the\nframe unwinders, by making frame_unwind a virtual class, and adds 3 new\nclasses. The main class added is frame_unwind_legacy, which works the\nsame as the previous structs, using function pointers as callbacks. This\nclass was added to allow the transition to happen piecemeal. New\nunwinders should instead follow the lead of the other 2 classes\nimplemented.\n\nThe other 2, frame_unwind_python and frame_unwind_trampoline, were added\nbecause it seemed simpler at the moment to do that instead of reworking\nthe dynamic allocation to work with the legacy class, and can be used as\nan example to future implementations.\n",
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