diff --git a/include/vkd3d_shader.h b/include/vkd3d_shader.h
index 0dd9829d..8ee67243 100644
--- a/include/vkd3d_shader.h
+++ b/include/vkd3d_shader.h
@@ -753,7 +753,7 @@ void vkd3d_shader_free_messages(char *messages);
 void vkd3d_shader_free_shader_code(struct vkd3d_shader_code *code);
 
 int vkd3d_shader_parse_root_signature(const struct vkd3d_shader_code *dxbc,
-        struct vkd3d_shader_versioned_root_signature_desc *root_signature);
+        struct vkd3d_shader_versioned_root_signature_desc *root_signature, char **messages);
 void vkd3d_shader_free_root_signature(struct vkd3d_shader_versioned_root_signature_desc *root_signature);
 
 /* FIXME: Add support for returning error messages (ID3DBlob). */
@@ -784,7 +784,7 @@ typedef void (*PFN_vkd3d_shader_free_messages)(char *messages);
 typedef void (*PFN_vkd3d_shader_free_shader_code)(struct vkd3d_shader_code *code);
 
 typedef int (*PFN_vkd3d_shader_parse_root_signature)(const struct vkd3d_shader_code *dxbc,
-        struct vkd3d_shader_versioned_root_signature_desc *root_signature);
+        struct vkd3d_shader_versioned_root_signature_desc *root_signature, char **messages);
 typedef void (*PFN_vkd3d_shader_free_root_signature)(struct vkd3d_shader_versioned_root_signature_desc *root_signature);
 
 typedef int (*PFN_vkd3d_shader_serialize_root_signature)(
diff --git a/libs/vkd3d-shader/dxbc.c b/libs/vkd3d-shader/dxbc.c
index a00dbe99..28159a92 100644
--- a/libs/vkd3d-shader/dxbc.c
+++ b/libs/vkd3d-shader/dxbc.c
@@ -2679,17 +2679,24 @@ static int rts0_handler(const char *data, DWORD data_size, DWORD tag, void *cont
 }
 
 int vkd3d_shader_parse_root_signature(const struct vkd3d_shader_code *dxbc,
-        struct vkd3d_shader_versioned_root_signature_desc *root_signature)
+        struct vkd3d_shader_versioned_root_signature_desc *root_signature, char **messages)
 {
     struct vkd3d_shader_message_context message_context;
     int ret;
 
-    TRACE("dxbc {%p, %zu}, root_signature %p.\n", dxbc->code, dxbc->size, root_signature);
+    TRACE("dxbc {%p, %zu}, root_signature %p, messages %p.\n", dxbc->code, dxbc->size, root_signature, messages);
 
     memset(root_signature, 0, sizeof(*root_signature));
-    if (!vkd3d_shader_message_context_init(&message_context, VKD3D_SHADER_LOG_NONE, NULL))
+    if (messages)
+        *messages = NULL;
+    if (!vkd3d_shader_message_context_init(&message_context, VKD3D_SHADER_LOG_INFO, NULL))
         return VKD3D_ERROR;
+
     ret = parse_dxbc(dxbc->code, dxbc->size, &message_context, rts0_handler, root_signature);
+    vkd3d_shader_message_context_trace_messages(&message_context);
+    if (messages && !(*messages = vkd3d_shader_message_context_copy_messages(&message_context)))
+        ret = VKD3D_ERROR_OUT_OF_MEMORY;
+
     vkd3d_shader_message_context_cleanup(&message_context);
     if (ret < 0)
         vkd3d_shader_free_root_signature(root_signature);
diff --git a/libs/vkd3d-shader/vkd3d_shader_main.c b/libs/vkd3d-shader/vkd3d_shader_main.c
index 6511a89d..0785c145 100644
--- a/libs/vkd3d-shader/vkd3d_shader_main.c
+++ b/libs/vkd3d-shader/vkd3d_shader_main.c
@@ -133,15 +133,13 @@ void vkd3d_shader_message_context_cleanup(struct vkd3d_shader_message_context *c
     vkd3d_string_buffer_cleanup(&context->messages);
 }
 
-#define vkd3d_shader_message_context_trace_messages(context) \
-        vkd3d_shader_message_context_trace_messages_(context, __FUNCTION__)
-static void vkd3d_shader_message_context_trace_messages_(const struct vkd3d_shader_message_context *context,
+void vkd3d_shader_message_context_trace_messages_(const struct vkd3d_shader_message_context *context,
         const char *function)
 {
     vkd3d_string_buffer_trace_(&context->messages, function);
 }
 
-static char *vkd3d_shader_message_context_copy_messages(struct vkd3d_shader_message_context *context)
+char *vkd3d_shader_message_context_copy_messages(struct vkd3d_shader_message_context *context)
 {
     char *messages;
 
diff --git a/libs/vkd3d-shader/vkd3d_shader_private.h b/libs/vkd3d-shader/vkd3d_shader_private.h
index 79056b38..3161087e 100644
--- a/libs/vkd3d-shader/vkd3d_shader_private.h
+++ b/libs/vkd3d-shader/vkd3d_shader_private.h
@@ -830,8 +830,13 @@ struct vkd3d_shader_message_context
 };
 
 void vkd3d_shader_message_context_cleanup(struct vkd3d_shader_message_context *context) DECLSPEC_HIDDEN;
+char *vkd3d_shader_message_context_copy_messages(struct vkd3d_shader_message_context *context) DECLSPEC_HIDDEN;
 bool vkd3d_shader_message_context_init(struct vkd3d_shader_message_context *context,
         enum vkd3d_shader_log_level log_level, const char *source_name) DECLSPEC_HIDDEN;
+void vkd3d_shader_message_context_trace_messages_(const struct vkd3d_shader_message_context *context,
+        const char *function) DECLSPEC_HIDDEN;
+#define vkd3d_shader_message_context_trace_messages(context) \
+        vkd3d_shader_message_context_trace_messages_(context, __FUNCTION__)
 void vkd3d_shader_error(struct vkd3d_shader_message_context *context, enum vkd3d_shader_error error,
         const char *format, ...) VKD3D_PRINTF_FUNC(3, 4) DECLSPEC_HIDDEN;
 
diff --git a/libs/vkd3d/vkd3d_main.c b/libs/vkd3d/vkd3d_main.c
index 5d7c71e1..3fd9c1b0 100644
--- a/libs/vkd3d/vkd3d_main.c
+++ b/libs/vkd3d/vkd3d_main.c
@@ -174,7 +174,7 @@ int vkd3d_parse_root_signature_v_1_0(const struct vkd3d_shader_code *dxbc,
     struct vkd3d_shader_versioned_root_signature_desc desc, converted_desc;
     int ret;
 
-    if ((ret = vkd3d_shader_parse_root_signature(dxbc, &desc)) < 0)
+    if ((ret = vkd3d_shader_parse_root_signature(dxbc, &desc, NULL)) < 0)
     {
         WARN("Failed to parse root signature, vkd3d result %d.\n", ret);
         return ret;
@@ -389,7 +389,7 @@ static HRESULT d3d12_versioned_root_signature_deserializer_init(struct d3d12_ver
     deserializer->ID3D12VersionedRootSignatureDeserializer_iface.lpVtbl = &d3d12_versioned_root_signature_deserializer_vtbl;
     deserializer->refcount = 1;
 
-    if ((ret = vkd3d_shader_parse_root_signature(dxbc, &deserializer->desc.vkd3d)) < 0)
+    if ((ret = vkd3d_shader_parse_root_signature(dxbc, &deserializer->desc.vkd3d, NULL)) < 0)
     {
         WARN("Failed to parse root signature, vkd3d result %d.\n", ret);
         return hresult_from_vkd3d_result(ret);
diff --git a/tests/vkd3d_shader_api.c b/tests/vkd3d_shader_api.c
index 69779450..a730c864 100644
--- a/tests/vkd3d_shader_api.c
+++ b/tests/vkd3d_shader_api.c
@@ -129,7 +129,7 @@ static void test_vkd3d_shader_pfns(void)
 
     rc = pfn_vkd3d_shader_serialize_root_signature(&empty_rs_desc, &dxbc);
     ok(rc == VKD3D_OK, "Got unexpected error code %d.\n", rc);
-    rc = pfn_vkd3d_shader_parse_root_signature(&dxbc, &root_signature_desc);
+    rc = pfn_vkd3d_shader_parse_root_signature(&dxbc, &root_signature_desc, NULL);
     ok(rc == VKD3D_OK, "Got unexpected error code %d.\n", rc);
     pfn_vkd3d_shader_free_root_signature(&root_signature_desc);
     pfn_vkd3d_shader_free_shader_code(&dxbc);