Don't fail loader init due to missing getProcAddr symbols in driver

* Don't fail loader init due to missing getProcAddr symbols in driver

Spec 1.5 added new proc addr tables for sysman.  Init should not fail if a 
new proc addr table symbol is missing

Signed-off-by: Brandon Yates <[email protected]>
Co-authored-by: Lisanna <[email protected]>

Author: bmyates

.gitignore

@@ -1 +1,3 @@
 /build
+/scripts/__pycache__/
+/scripts/templates/__pycache__/

scripts/templates/helper.py

@@ -1763,3 +1763,11 @@ def get_loader_epilogue(namespace, tags, obj, meta):
                     })
 
     return epilogue
+
+"""
+Public:
+    returns true if proc table is added after 1.0
+"""
+def isNewProcTable(tableName):
+
+    return tableName in ["zesGetGlobalProcAddrTable","zesGetOverclockProcAddrTable"]

scripts/templates/ldrddi.cpp.mako

@@ -277,7 +277,15 @@ ${tbl['export']['name']}(
         auto getTable = reinterpret_cast<${tbl['pfn']}>(
             GET_FUNCTION_PTR( drv.handle, "${tbl['export']['name']}") );
         if(!getTable) 
+        %if th.isNewProcTable(tbl['export']['name']) is True:
+        {
+            atLeastOneDriverValid = true;
+            //It is valid to not have this proc addr table
+            continue; 
+        }
+        %else:
             continue; 
+        %endif
         auto getTableResult = getTable( version, &drv.dditable.${n}.${tbl['name']});
         if(getTableResult == ZE_RESULT_SUCCESS) 
             atLeastOneDriverValid = true;

source/loader/zes_ldrddi.cpp

@@ -3846,7 +3846,11 @@ zesGetGlobalProcAddrTable(
         auto getTable = reinterpret_cast<zes_pfnGetGlobalProcAddrTable_t>(
             GET_FUNCTION_PTR( drv.handle, "zesGetGlobalProcAddrTable") );
         if(!getTable) 
+        {
+            atLeastOneDriverValid = true;
+            //It is valid to not have this proc addr table
             continue; 
+        }
         auto getTableResult = getTable( version, &drv.dditable.zes.Global);
         if(getTableResult == ZE_RESULT_SUCCESS) 
             atLeastOneDriverValid = true;
@@ -4744,7 +4748,11 @@ zesGetOverclockProcAddrTable(
         auto getTable = reinterpret_cast<zes_pfnGetOverclockProcAddrTable_t>(
             GET_FUNCTION_PTR( drv.handle, "zesGetOverclockProcAddrTable") );
         if(!getTable) 
+        {
+            atLeastOneDriverValid = true;
+            //It is valid to not have this proc addr table
             continue; 
+        }
         auto getTableResult = getTable( version, &drv.dditable.zes.Overclock);
         if(getTableResult == ZE_RESULT_SUCCESS) 
             atLeastOneDriverValid = true;