major clean-up pass over unwinding/module-info abstraction, + usage in the debug engine. simplified / cleaned up DWARF helpers for unwind info & expressions. decoupling unwinding / DWARF evaluation from memory read callbacks. light module info now prepared by demon layer - debug engine no longer duplicates per-backend parsing. unwind abstraction layer now does thin abstraction over unwinding backends, debug engine only calls abstraction. clean up demon to have fewer ad-hoc 'queries' on handles, and prefer sending info over debug events when possible / when it fits the usage pattern. move DWARF enum specifications to metacode, generate enums/xlists/tables/etc. decouple raddbg/radbin completely from old parsing helpers. replace portion of DWARF dumping; pull out some new parsing helpers from converter / dumper.

src/base/base_memory_map.h

@@ -0,0 +1,38 @@
+// Copyright (c) Epic Games Tools
+// Licensed under the MIT license (https://opensource.org/license/mit/)
+
+#ifndef BASE_MEMORY_MAP_H
+#define BASE_MEMORY_MAP_H
+
+////////////////////////////////
+//~ rjf: Memory Map Types
+
+typedef struct MemoryMapRange MemoryMapRange;
+struct MemoryMapRange
+{
+  Rng1U64 vaddr_range;
+  void *base;
+};
+
+typedef struct MemoryMapRangeNode MemoryMapRangeNode;
+struct MemoryMapRangeNode
+{
+  MemoryMapRangeNode *next;
+  MemoryMapRange v;
+};
+
+typedef struct MemoryMap MemoryMap;
+struct MemoryMap
+{
+  MemoryMapRangeNode *first_range;
+  MemoryMapRangeNode *last_range;
+};
+
+////////////////////////////////
+//~ rjf: Memory Map Functions
+
+internal void memory_map_push(Arena *arena, MemoryMap *map, Rng1U64 vaddr_range, void *data);
+internal U64 memory_map_read(MemoryMap *map, Rng1U64 range, void *dst);
+#define memory_map_read_struct(map, vaddr, ptr) memory_map_read((map), r1u64((vaddr), (vaddr)+sizeof(*(ptr))), (ptr))
+
+#endif // BASE_MEMORY_MAP_H