[compiler-rt] [scudo] [MTE] resize stack depot for allocation ring buffer (PR #74515)

[Florian Mayer via llvm-commits]

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@@ -917,8 +919,14 @@ class Allocator {
       Primary.Options.clear(OptionBit::AddLargeAllocationSlack);
   }
 
-  const char *getStackDepotAddress() const {
-    return reinterpret_cast<const char *>(&Depot);
+  const char *getStackDepotAddress() {
+    initThreadMaybe();
+    return reinterpret_cast<char *>(Depot);
+  }
+
+  uptr getStackDepotSize() {
+    initThreadMaybe();
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fmayer wrote:

I am not sure that's a good idea. E.g. if we call `mapAndInitializeRingBuffer` and someone else calls `initThreadMaybe` on another thread, we would have to add synchronization into the `mapAndInitializeRingBuffer`.

https://github.com/llvm/llvm-project/pull/74515