defs hack

Author: JacobSzwejbka

backends/cuda/CMakeLists.txt

@@ -46,15 +46,15 @@ set(_aoti_cuda_sources
 )
 # Build as SHARED library (.dll) on Windows MSVC, otherwise STATIC
 if(MSVC)
-  add_library(aoti_cuda SHARED ${_aoti_cuda_sources})
+  add_library(aoti_cuda SHARED ${_aoti_cuda_sources} ${CMAKE_CURRENT_SOURCE_DIR}/aoti_cuda.def)
   # Define export macros for Windows DLL
   target_compile_definitions(aoti_cuda PRIVATE
     EXPORT_AOTI_FUNCTIONS
     BUILDING_CUDA_BACKEND
   )
   # Ensure proper DLL import/export library naming on Windows with config-specific paths
   set_target_properties(aoti_cuda PROPERTIES
-    WINDOWS_EXPORT_ALL_SYMBOLS OFF  # We use explicit exports via AOTI_CUDA_EXPORT
+    WINDOWS_EXPORT_ALL_SYMBOLS OFF  # We use explicit exports via AOTI_CUDA_EXPORT and .def file
     RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin/$<CONFIG>
     LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib/$<CONFIG>
     ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib/$<CONFIG>

backends/cuda/aoti_cuda.def

@@ -0,0 +1,3 @@
+LIBRARY aoti_cuda
+EXPORTS
+    InitCudaBackend

backends/cuda/runtime/cuda_backend.cpp

@@ -12,6 +12,7 @@
 #include <executorch/runtime/core/evalue.h>
 #include <executorch/runtime/core/exec_aten/util/tensor_util.h>
 #include <cstdio>
+#include <cassert>
 
 #include <filesystem>
 #include <fstream>
@@ -388,6 +389,7 @@ static executorch::runtime::Error success_with_compiler =
 extern "C" CUDA_BACKEND_INIT_API void InitCudaBackend() {
   // Log immediately to confirm function is entered
   ET_LOG(Info, "InitCudaBackend: Function entered");
+  assert(1==2)
 
 #ifdef _WIN32
   ET_LOG(Info, "InitCudaBackend: Windows path");