[clang] [llvm] [sancov] Introduce optional callback for stack-depth tracking (PR #138323)

[Kees Cook via llvm-commits]

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@@ -158,6 +158,7 @@ struct SanitizerCoverageOptions {
   bool PCTable = false;
   bool NoPrune = false;
   bool StackDepth = false;
+  int StackDepthCallbackMin = 0;
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kees wrote:

Yeah, I wasn't sure if I should keep it with the other StackDepth var. I've moved it now.

https://github.com/llvm/llvm-project/pull/138323