loader: Fix alloc issue

We were allocating the wrong struct for the dispatch table object
when creating the instance.  This left us using invalid memory
when using the physical device extension trampolines.

Change-Id: I9939a8c9fe320b0d07592ab4beb5b6faaba40383

diff --git a/loader/trampoline.c b/loader/trampoline.c
index 1afe445..b03ebda 100644 (file)
--- a/loader/trampoline.c
+++ b/loader/trampoline.c
@@ -307,16 +307,16 @@ LOADER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL vkCreateInstance(const VkInstanceCr
         goto out;
     }
 
-    ptr_instance->disp =
-        loader_instance_heap_alloc(ptr_instance, sizeof(VkLayerInstanceDispatchTable), VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
+    ptr_instance->disp = loader_instance_heap_alloc(ptr_instance, sizeof(struct loader_instance_dispatch_table),
+                                                    VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);
     if (ptr_instance->disp == NULL) {
         loader_log(ptr_instance, VK_DEBUG_REPORT_ERROR_BIT_EXT, 0,
-                   "vkCreateInstance:  Failed to allocate Instance dispatch"
-                   " table.");
+                   "vkCreateInstance:  Failed to allocate Loader's full Instance dispatch table.");
         res = VK_ERROR_OUT_OF_HOST_MEMORY;
         goto out;
     }
-    memcpy(ptr_instance->disp, &instance_disp, sizeof(instance_disp));
+    memcpy(&ptr_instance->disp->layer_inst_disp, &instance_disp, sizeof(instance_disp));
+
     ptr_instance->next = loader.instances;
     loader.instances = ptr_instance;