[clang] [clang] Implement address sanitizer on AIX (1/6) (PR #129925)

[David Tenty via cfe-commits]

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@@ -1364,6 +1364,19 @@ static bool addSanitizerDynamicList(const ToolChain &TC, const ArgList &Args,
   // the option, so don't try to pass it.
   if (TC.getTriple().isOSSolaris() && !LinkerIsGnuLd)
     return true;
+
+  if (TC.getTriple().isOSAIX()) {
+    SmallString<128> SanRTSymbolList;
+    (Twine(TC.getCompilerRTPath()) + "/" + Sanitizer +
+     ".link_with_main_exec.txt")
+        .toVector(SanRTSymbolList);
+    if (llvm::sys::fs::exists(SanRTSymbolList)) {
+      CmdArgs.push_back(Args.MakeArgString(Twine("-bE:") + SanRTSymbolList));
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daltenty wrote:

Ditto comment about missing lists.

I guess we can't use exactly the same list as `--dynamic-list=` because format is slightly different, but I'm guessing we can generate it in a similar fashion.

https://github.com/llvm/llvm-project/pull/129925