[PATCH] D35154: [tsan] Add a max VM address check for Darwin/AArch64

[Kuba (Brecka) Mracek via Phabricator via llvm-commits]

kubamracek created this revision.
kubamracek added a project: Sanitizers.
Herald added subscribers: kristof.beyls, rengolin, aemerson.

Repository:
  rL LLVM

https://reviews.llvm.org/D35154

Files:
  lib/tsan/rtl/tsan_platform_mac.cc


Index: lib/tsan/rtl/tsan_platform_mac.cc
===================================================================
--- lib/tsan/rtl/tsan_platform_mac.cc
+++ lib/tsan/rtl/tsan_platform_mac.cc
@@ -230,6 +230,14 @@
 #endif
 
 void InitializePlatformEarly() {
+#if defined(__aarch64__)
+  uptr max_vm = GetMaxVirtualAddress() + 1;
+  if (max_vm > kHiAppMemEnd) {
+    CHECK(0 && "vm address limit too high");
+  } else if (max_vm < kHiAppMemEnd) {
+    CHECK(0 && "vm address limit too low");
+  }
+#endif
 }
 
 void InitializePlatform() {


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