Disable MemoryIdler::unmapUnusedStack with ASAN

Summary: It doesn't work nicely with fake stacks (which are used with detect_stack_use_after_return).

Reviewed By: yfeldblum

Differential Revision: D4631995

fbshipit-source-id: f139041314f8f64c0cf0a15874d6a4710fb2a5b6

diff --git a/folly/detail/MemoryIdler.cpp b/folly/detail/MemoryIdler.cpp
index 12286855cd4b00e3f65891d43e9d4544cb5ffbdc..129debddc17ce86bdb1fc26eabe261c06965542d 100644 (file)
--- a/folly/detail/MemoryIdler.cpp
+++ b/folly/detail/MemoryIdler.cpp
@@ -80,7 +80,7 @@ void MemoryIdler::flushLocalMallocCaches() {
 // and arithmetic (and bug compatibility) are not portable.  The set of
 // platforms could be increased if it was useful.
 #if (FOLLY_X64 || FOLLY_PPC64) && defined(_GNU_SOURCE) && \
-    defined(__linux__) && !FOLLY_MOBILE
+    defined(__linux__) && !FOLLY_MOBILE && !FOLLY_SANITIZE_ADDRESS
 
 static FOLLY_TLS uintptr_t tls_stackLimit;
 static FOLLY_TLS size_t tls_stackSize;