feat: fix win compat

Signed-off-by: Zihua Wu <13583761+lucifer1004@users.noreply.github.com>

deep_gemm/jit/runtime.py

@@ -10,7 +10,9 @@ from .utils import run_gemm
 
 
 def get_symbol(file_path: str, pattern: str) -> Optional[str]:
-    command = [f'{CUDA_HOME}/bin/cuobjdump', '-symbols', file_path]
+    if CUDA_HOME is None:
+        raise Exception("CUDA_HOME is not set")
+    command = [os.path.join(CUDA_HOME, 'bin', 'cuobjdump'), '-symbols', file_path]
     result = subprocess.run(command, stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE, text=True)
     assert result.returncode == 0