[Loader] Fix memory allocations for code objects that

are larger than swap space available

Change-Id: I321487f96fe0a18998301a9058430c19427e5a94

runtime/hsa-runtime/core/runtime/amd_loader_context.cpp

@@ -207,7 +207,7 @@ bool MappedMemory::Allocate(size_t size, size_t align, bool zero)
 #else
   ptr_ = is_kv_ ?
     mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0) :
-    mmap(nullptr, size, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+    mmap(nullptr, size, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_NORESERVE | MAP_PRIVATE, -1, 0);
 #endif // _WIN32 || _WIN64
   if (nullptr == ptr_) {
     return false;