scripting/wamr_patches/0028-windows-aot-map-below-2gb.patch

--- a/core/shared/platform/windows/win_memmap.c
+++ b/core/shared/platform/windows/win_memmap.c
@@ -60,6 +60,35 @@
         alloc_type |= MEM_COMMIT;
     }
 
+#if defined(BUILD_TARGET_X86_64) || defined(BUILD_TARGET_AMD_64)
+    /* Windows has no MAP_32BIT, and AOT code relocates against its own
+       sections with 32 bit absolute addresses, so take the first free
+       region below 2GB. */
+    if (!hint && (flags & MMAP_MAP_32BIT)) {
+        SYSTEM_INFO info;
+        MEMORY_BASIC_INFORMATION region;
+        uintptr_t granularity, at, base, end;
+
+        GetSystemInfo(&info);
+        granularity = info.dwAllocationGranularity;
+        at = granularity;
+        while (at < 2ULL * BH_GB
+               && VirtualQuery((LPCVOID)at, &region, sizeof(region))) {
+            base = ((uintptr_t)region.BaseAddress + granularity - 1)
+                   & ~(granularity - 1);
+            end = (uintptr_t)region.BaseAddress + region.RegionSize;
+            if (region.State == MEM_FREE && base + request_size <= end
+                && base + request_size <= 2ULL * BH_GB) {
+                addr = VirtualAlloc((LPVOID)base, request_size, alloc_type,
+                                    protect);
+                if (addr)
+                    return addr;
+            }
+            at = end;
+        }
+    }
+#endif
+
     addr = VirtualAlloc((LPVOID)hint, request_size, alloc_type, protect);
 
 #if TRACE_MEMMAP != 0