[llvm] [BOLT] Support instrumentation hook via DT_FINI_ARRAY (PR #67348)

[Vladislav Khmelevsky via llvm-commits]

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@@ -1276,6 +1280,57 @@ void RewriteInstance::discoverFileObjects() {
   registerFragments();
 }
 
+Error RewriteInstance::discoverFiniAddress() {
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yota9 wrote:

Well, it makes sense. But since at least right now this is runtime-specific code I assume at least the naming of the function should display it, especially for the update one

https://github.com/llvm/llvm-project/pull/67348