Fix more missing backend stuff (and Python errors)

ggml/src/ggml-cann/ggml-cann.cpp

@@ -3039,7 +3039,8 @@ ggml_backend_t ggml_backend_cann_init(int32_t device) {
         new ggml_backend{ /* .guid      = */ ggml_backend_cann_guid(),
                           /* .interface = */ ggml_backend_cann_interface,
                           /* .device    = */ ggml_backend_reg_dev_get(ggml_backend_cann_reg(), device),
-                          /* .context   = */ ctx };
+                          /* .context   = */ ctx,
+                          /* .profiler  = */ nullptr };
 
     return cann_backend;
 }

ggml/src/ggml-hexagon/ggml-hexagon.cpp

@@ -3895,6 +3895,7 @@ static ggml_backend_t ggml_backend_hexagon_device_init(ggml_backend_dev_t dev, c
         /* .interface = */ hexagon_backend_i,
         /* .device    = */ dev,
         /* .context   = */ sess,
+        /* .profiler  = */ nullptr,
     };
 
     GGML_UNUSED(params);

ggml/src/ggml-openvino/ggml-openvino.cpp

@@ -803,6 +803,7 @@ GGML_BACKEND_API ggml_backend_t ggml_backend_openvino_init(int device) {
         /* .interface = */ ggml_backend_openvino_interface,
         /* .device    = */ ggml_backend_reg_dev_get(ggml_backend_openvino_reg(), device),
         /* .context   = */ ctx,
+        /* .profiler  = */ nullptr,
     };
 
     return openvino_backend;

ggml/src/ggml-virtgpu/ggml-backend.cpp

@@ -65,6 +65,7 @@ ggml_backend_t ggml_backend_remoting_device_init(ggml_backend_dev_t dev, const c
         /* .interface = */ ggml_backend_remoting_interface,
         /* .device    = */ ggml_backend_reg_dev_get(ggml_backend_virtgpu_reg(), ctx->device),
         /* .context   = */ ctx,
+        /* .profiler  = */ nullptr,
     };
 
     return remoting_backend;

tools/profiler/profiler.py

@@ -223,7 +223,7 @@ class ProfileData:
 
             # Track the ne from the longest individual call
             if rec.duration_ns >= s.max_ns:
-                s.representative_ne = list(rec.ne)
+                s.representative_ne = list(rec.ne_src0)
 
         return sorted(groups.values(), key=lambda s: s.total_ns, reverse=True)