Modify debug framework to be build-independent

During boot, Hostboot will push key pointers into memory.  This
allows the debug tools to find the pointers (using a known static
memory address) to base memory accesses on.  This replaces the
existing symbol lookup that we use now.  That means we don't
need to have the exact symbol file for the build we're debugging
against.

Change-Id: I4618e15a3dc90acc3a89520a502eb818c1b4258c
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/56097
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/src/build/debug/Hostboot/PrintVMM.pm b/src/build/debug/Hostboot/PrintVMM.pm
index 390a9b4b6..476262d93 100644
--- a/src/build/debug/Hostboot/PrintVMM.pm
+++ b/src/build/debug/Hostboot/PrintVMM.pm
@@ -5,7 +5,9 @@
 #
 # OpenPOWER HostBoot Project
 #
-# COPYRIGHT International Business Machines Corp. 2012,2014
+# Contributors Listed Below - COPYRIGHT 2012,2018
+# [+] International Business Machines Corp.
+#
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -68,8 +70,8 @@ sub main
     }
 
     # Get the device segment address
-    my @segment_manager_addr =
-          ::findSymbolAddress("Singleton<SegmentManager>::instance()::instance");
+    my @segment_manager_addr = ::findPointer("SGMNTMGR",
+                   "Singleton<SegmentManager>::instance()::instance");
 
     if (not defined @segment_manager_addr)
     {