[compiler-rt] r325720 - [sanitizer] Allow to set SANITIZER_CAN_USE_PREINIT_ARRAY externally

[Vitaly Buka via llvm-commits]

Author: vitalybuka
Date: Wed Feb 21 13:13:07 2018
New Revision: 325720

URL: http://llvm.org/viewvc/llvm-project?rev=325720&view=rev
Log:
[sanitizer] Allow to set SANITIZER_CAN_USE_PREINIT_ARRAY externally

Modified:
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h?rev=325720&r1=325719&r2=325720&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_internal_defs.h Wed Feb 21 13:13:07 2018
@@ -98,6 +98,7 @@
 // We can use .preinit_array section on Linux to call sanitizer initialization
 // functions very early in the process startup (unless PIC macro is defined).
 // FIXME: do we have anything like this on Mac?
+#ifndef SANITIZER_CAN_USE_PREINIT_ARRAY
 #if ((SANITIZER_LINUX && !SANITIZER_ANDROID) || \
   SANITIZER_FREEBSD) && !defined(PIC)
 # define SANITIZER_CAN_USE_PREINIT_ARRAY 1
@@ -108,6 +109,7 @@
 #else
 # define SANITIZER_CAN_USE_PREINIT_ARRAY 0
 #endif
+#endif  // SANITIZER_CAN_USE_PREINIT_ARRAY
 
 // GCC does not understand __has_feature
 #if !defined(__has_feature)