Index: source/Plugins/Process/Utility/InferiorCallPOSIX.cpp
===================================================================
--- source/Plugins/Process/Utility/InferiorCallPOSIX.cpp
+++ source/Plugins/Process/Utility/InferiorCallPOSIX.cpp
@@ -9,6 +9,7 @@
 
 #include "InferiorCallPOSIX.h"
 #include "lldb/Core/Address.h"
+#include "lldb/Core/ArchSpec.h"
 #include "lldb/Core/StreamFile.h"
 #include "lldb/Core/ValueObject.h"
 #include "lldb/Symbol/ClangASTContext.h"
@@ -19,6 +20,8 @@
 #include "lldb/Target/ThreadPlanCallFunction.h"
 #include "lldb/Host/Config.h"
 
+#include "llvm/ADT/Triple.h"
+
 #ifndef LLDB_DISABLE_POSIX
 #include <sys/mman.h>
 #else
@@ -27,13 +30,33 @@
 #define PROT_READ 1
 #define PROT_WRITE 2
 #define PROT_EXEC 4
-#define MAP_PRIVATE 2
-#define MAP_ANON 0x1000
 #endif
 
 using namespace lldb;
 using namespace lldb_private;
 
+uint64_t ConvertMmapFlagsForTarget(unsigned flags,
+                                   const Target& target)
+{
+    uint64_t flags_arg = 0;
+    llvm::Triple target_triple = target.GetArchitecture().GetTriple();
+    if (target_triple.isOSLinux())
+    {
+        if (flags & eMmapFlagsPrivate)
+          flags_arg |= 2;
+        if (flags & eMmapFlagsAnon)
+          flags_arg |= 0x20;
+    }
+    else
+    {
+        if (flags & eMmapFlagsPrivate)
+          flags_arg |= 2;
+        if (flags & eMmapFlagsAnon)
+          flags_arg |= 0x1000;
+    }
+    return flags_arg;
+}
+
 bool
 lldb_private::InferiorCallMmap (Process *process,
                                 addr_t &allocated_addr,
@@ -87,10 +110,7 @@
                 prot_arg |= PROT_WRITE;
             }
 
-            if (flags & eMmapFlagsPrivate)
-              flags_arg |= MAP_PRIVATE;
-            if (flags & eMmapFlagsAnon)
-              flags_arg |= MAP_ANON;
+            flags_arg = ConvertMmapFlagsForTarget(flags, process->GetTarget());
 
             AddressRange mmap_range;
             if (sc.GetAddressRange(range_scope, 0, use_inline_block_range, mmap_range))