[PATCH] D85061: [msan] Respect no_huge_pages_for_shadow.

[Evgenii Stepanov via Phabricator via llvm-commits]

eugenis created this revision.
eugenis added a reviewer: vitalybuka.
Herald added a project: Sanitizers.
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eugenis requested review of this revision.

Disable huge pages in the MSan shadow region when
no_huge_pages_for_shadow == true (default).


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D85061

Files:
  compiler-rt/lib/msan/msan_linux.cpp


Index: compiler-rt/lib/msan/msan_linux.cpp
===================================================================
--- compiler-rt/lib/msan/msan_linux.cpp
+++ compiler-rt/lib/msan/msan_linux.cpp
@@ -142,7 +142,7 @@
     if (map) {
       if (!CheckMemoryRangeAvailability(start, size))
         return false;
-      if (!MmapFixedNoReserve(start, size, kMemoryLayout[i].name))
+      if (!MmapFixedSuperNoReserve(start, size, kMemoryLayout[i].name))
         return false;
       if (common_flags()->use_madv_dontdump)
         DontDumpShadowMemory(start, size);


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