Organize gdb/llvm files a bit better

Also adds a README.md for gdb.

.gdbinit

@@ -1 +1 @@
-source tools/gdb/pretty_printers/utils/static_vector_pp.py
+source tools/gdb/devilution_gdb/__init__.py

.lldbinit

@@ -1,4 +1,4 @@
 script topsrcdir = topsrcdir if "topsrcdir" in locals() else os.getcwd()
-script sys.path.append(os.path.join(topsrcdir, "tools/lldbutils"))
-script import lldbutils
-script lldbutils.init()
+script sys.path.append(os.path.join(topsrcdir, "tools/lldb"))
+script import devilution_lldb
+script devilution_lldb.init()

tools/gdb/README.md

@@ -0,0 +1,34 @@
+# gdb debugging enhancements
+
+Requires gdb v14.1+.
+
+The code in this directory is imported via `.gdbinit`.
+
+Working directory `.gdb` is not loaded by default.
+
+You can run gdb with `-iex 'add-auto-load-safe-path .'` to load it.
+
+For example:
+
+```bash
+gdb -iex 'add-auto-load-safe-path .' build/devilutionx
+```
+
+If you're using VS Code with CMake, you can instead add the following to your `.vscode/settings.json`:
+
+```json
+"cmake.debugConfig": {
+  "setupCommands": [
+    {
+      "description": "Enable pretty-printing for gdb",
+      "text": "-enable-pretty-printing",
+      "ignoreFailures": true
+    },
+    {
+      "description": "Load gdb enhancements",
+      "text": "source ${workspaceFolder}/tools/gdb/devilution_gdb/__init__.py",
+      "ignoreFailures": false
+    }
+  ]
+}
+```

tools/gdb/devilution_gdb/__init__.py

@@ -0,0 +1,6 @@
+import sys
+import pathlib
+
+sys.path.insert(0, str(pathlib.Path(__file__).resolve().parent.parent))
+
+import devilution_gdb.pretty_printers.utils.static_vector_pp as _

tools/lldb/devilution_lldb/__init__.py

@@ -0,0 +1,7 @@
+import lldb
+
+import devilution_lldb.pretty_printers.utils.static_vector_pp
+
+
+def init():
+    devilution_lldb.pretty_printers.utils.static_vector_pp.init(lldb.debugger)

tools/lldb/devilution_lldb/pretty_printers/utils/static_vector_pp.py

@@ -28,5 +28,5 @@ class StaticVectorSyntheticChildrenProvider:
 
 def init(debugger: lldb.debugger):
     debugger.HandleCommand(
-        'type synthetic add -x "devilution::StaticVector<" -l lldbutils.pretty_printers.utils.static_vector_pp.StaticVectorSyntheticChildrenProvider'
+        'type synthetic add -x "devilution::StaticVector<" -l devilution_lldb.pretty_printers.utils.static_vector_pp.StaticVectorSyntheticChildrenProvider'
     )

tools/lldbutils/lldbutils/__init__.py

@@ -1,6 +0,0 @@
-import lldb
-
-import lldbutils.pretty_printers.utils.static_vector_pp
-
-def init():
-  lldbutils.pretty_printers.utils.static_vector_pp.init(lldb.debugger)