[compiler-rt] [tsan][NFCI] Add note that GPU libraries may cause shadow mapping incompatibility (PR #137835)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-compiler-rt-sanitizer

Author: Thurston Dang (thurstond)

<details>
<summary>Changes</summary>

…ompatibility

---
Full diff: https://github.com/llvm/llvm-project/pull/137835.diff


1 Files Affected:

- (modified) compiler-rt/lib/tsan/rtl/tsan_platform_linux.cpp (+6-2) 


``````````diff
diff --git a/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cpp b/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cpp
index 373acd3d95d01..8c046e244ea39 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cpp
+++ b/compiler-rt/lib/tsan/rtl/tsan_platform_linux.cpp
@@ -292,8 +292,12 @@ static void ReExecIfNeeded(bool ignore_heap) {
     } else {
       Printf(
           "FATAL: ThreadSanitizer: memory layout is incompatible, "
-          "even though ASLR is disabled.\n"
-          "Please file a bug.\n");
+          "even though ASLR is disabled.\n");
+      Printf(
+          "FATAL: This error may occur for programs that use GPU libraries.");
+      Printf(
+          "FATAL: If your program does not use GPU libraries, please file a "
+          "TSan bug.\n");
       DumpProcessMap();
       Die();
     }

``````````

</details>


https://github.com/llvm/llvm-project/pull/137835