Add hack to prevent checkstack.py from infinitely recursing (with bad input).

diff --git a/tools/checkstack.py b/tools/checkstack.py
index 1822cc8355eaa88ed6bff9fe14c029fbdd489d8f..84635005973b61502c9f579c80a9a8ef120e52a1 100755 (executable)
--- a/tools/checkstack.py
+++ b/tools/checkstack.py
@@ -25,6 +25,7 @@ def calcmaxstack(funcs, func):
         return
     # Find max of all nested calls.
     max = info[0]
+    info[1] = max
     for addr, callfname, usage in info[2]:
         callinfo = funcs[callfname]
         if callinfo[1] is None: