)]}'
{
  "commit": "ba005d32b0f3d6a8f7a35b649ffe46304bd7d6fb",
  "tree": "3a956750c89dcf43a6df7b02431ec5869a1ee7dc",
  "parents": [
    "0dac4dded2b023080236474d4aea442d764a5049"
  ],
  "author": {
    "name": "Tom Tromey",
    "email": "tromey@adacore.com",
    "time": "Tue Apr 15 09:08:52 2025 -0600"
  },
  "committer": {
    "name": "Tom Tromey",
    "email": "tromey@adacore.com",
    "time": "Tue May 06 09:01:54 2025 -0600"
  },
  "message": "Handle dynamic field properties\n\nI found a situation where gdb could not properly decode an Ada type.\nIn this first scenario, the discriminant of a type is a bit-field.\nPROP_ADDR_OFFSET does not handle this situation, because it only\nallows an offset -- not a bit-size.\n\nMy original approach to this just added a bit size as well, but after\nsome discussion with Eric Botcazou, we found another failing case: a\ntagged type can have a second discriminant that appears at a variable\noffset.\n\nSo, this patch changes this code to accept a general \u0027struct field\u0027\ninstead of trying to replicate the field-finding machinery by itself.\n\nThis is handled at property-evaluation time by simply using a \u0027field\u0027\nand resolving its dynamic properties.  Then the usual field-extraction\nfunction is called to get the value.\n\nBecause the baton now just holds a field, I renamed PROP_ADDR_OFFSET\nto PROP_FIELD.\n\nThe DWARF reader now defers filling in the property baton until the\nfields have been attached to the type.\n\nFinally, I noticed that if the discriminant field has a biased\nrepresentation, then unpack_field_as_long would not handle this\neither.  This bug is also fixed here, and the test case checks this.\n\nRegression tested on x86-64 Fedora 41.\n\n\n\n",
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