[compiler-rt] [asan] Implement address sanitizer on AIX: memory mapping (6/6) (PR #136874)

[Vitaly Buka via llvm-commits]

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@@ -91,9 +91,25 @@ void InitializeShadowMemory() {
       ReserveShadowMemoryRange(shadow_start, kLowShadowEnd, "low shadow");
     // mmap the high shadow.
     ReserveShadowMemoryRange(kHighShadowBeg, kHighShadowEnd, "high shadow");
-    // protect the gap.
-    ProtectGap(kShadowGapBeg, kShadowGapEnd - kShadowGapBeg + 1);
-    CHECK_EQ(kShadowGapEnd, kHighShadowBeg - 1);
+#  if SANITIZER_AIX == 1 && SANITIZER_WORDSIZE == 64
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vitalybuka wrote:

all this nesting is hard to read
maybe we need a refactoring to make it more generic

https://github.com/llvm/llvm-project/pull/136874