[compiler-rt] [asan] Implement interception on AIX (PR #131870)

[Hubert Tong via llvm-commits]

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@@ -31,10 +31,22 @@ void InitializePlatformInterceptors();
 // really defined to replace libc functions.
 #if !SANITIZER_FUCHSIA
 
+// AIX currently can't retrieve the address of longjmp
+#  if !SANITIZER_AIX
+#    define ASAN_INTERCEPT_LONGJMP 1
+#  else
+#    define ASAN_INTERCEPT_LONGJMP 0
+#  endif
+
 // Use macro to describe if specific function should be
 // intercepted on a given platform.
 #  if !SANITIZER_WINDOWS
-#    define ASAN_INTERCEPT__LONGJMP 1
+   // AIX currently can't retrieve the address of _longjmp
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hubert-reinterpretcast wrote:

Add TODO comment re: `_longjmpx`.

https://github.com/llvm/llvm-project/pull/131870