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-rw-r--r--llvm_mode/afl-llvm-rt.o.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/llvm_mode/afl-llvm-rt.o.c b/llvm_mode/afl-llvm-rt.o.c
index f81d13ee..0efde7aa 100644
--- a/llvm_mode/afl-llvm-rt.o.c
+++ b/llvm_mode/afl-llvm-rt.o.c
@@ -53,7 +53,11 @@
 #define CONST_PRIO 5
 
 #ifndef MAP_FIXED_NOREPLACE
-  #define MAP_FIXED_NOREPLACE MAP_FIXED
+  #ifdef MAP_EXCL
+    #define MAP_FIXED_NOREPLACE MAP_EXCL | MAP_FIXED
+  #else
+    #define MAP_FIXED_NOREPLACE MAP_FIXED
+  #endif
 #endif
 
 #include <sys/mman.h>