[Tizen] Implement ASan wrapper for Linux ARM32

This commit implements wrappers that allow interception transitions
from managed to external unmanaged code (CIL -> native) and back
(native -> CIL). This allows enable/disable ASan during transitions.
Due to this, we sanitize only external code, which allows us to
achieve acceptable performance.

Change-Id: I53ecdc14d28f7210cd9e7f5bd4db0c8ef5ed81fc
Signed-off-by: Vyacheslav Cherkashin <v.cherkashin@samsung.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/vm/dllimport.cpp b/src/vm/dllimport.cpp
index eed690454d..2ee15f675d 100644
--- a/src/vm/dllimport.cpp
+++ b/src/vm/dllimport.cpp
@@ -46,6 +46,10 @@
 #include "compile.h"
 #endif // FEATURE_PREJIT
 
+#ifdef TIZEN_ASAN_ENVIRONMENT
+#include <tizenasanenv.h>
+#endif // TIZEN_ASAN_ENVIRONMENT
+
 #include "eventtrace.h"
 #include "clr/fs/path.h"
 using namespace clr::fs;
@@ -6696,6 +6700,15 @@ VOID NDirect::NDirectLink(NDirectMethodDesc *pMD)
         LPVOID pvTarget = NDirectGetEntryPoint(pMD, hmod);
         if (pvTarget)
         {
+#ifdef TIZEN_ASAN_ENVIRONMENT
+            if (PAL_IsSanitizedLibraryDirect(hmod))
+            {
+                pvTarget = TizenASanEnv::CreateWrapper(pvTarget,
+                                                       TizenASanEnv::PushAndEnableASan,
+                                                       TizenASanEnv::PopAndDisableASan);
+            }
+#endif // TIZEN_ASAN_ENVIRONMENT
+
             pMD->SetNDirectTarget(pvTarget);
             fSuccess = TRUE;
         }