[gnome-continuous-yocto/gnomeostree-3.28-rocko: 980/8267] bitbake: bitbake: fix wrong usage of format_exc

[Emmanuele Bassi <ebassi src gnome org>]

commit 772e9b4eabf054cadb8ad2dc6b223aa6c30c7f46
Author: Ed Bartosh <eduard bartosh intel com>
Date:   Fri Jun 10 14:58:17 2016 +0300

    bitbake: bitbake: fix wrong usage of format_exc
    
    First parameter of traceback.format_exc is a 'limit' - a number
    of stracktraces to format.
    
    Passing exception object to format_exc is incorrect, but it works in
    Python 2 as this code from traceback module works:
        while tb is not None and (limit is None or n < limit):
    Comparing integer counter n with the exception object in Python 2
    always results in True. However, in Python 3 it throws exception:
        TypeError: unorderable types: int() < <Exception type>()
    
    As format_exc is used in except block of handling another
    exception this can cause hard to find and debug bugs.
    
    (Bitbake rev: a9509949d7e2adba6e3cd89f97daa19a955855b5)
    
    Signed-off-by: Ed Bartosh <ed bartosh linux intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 bitbake/lib/bb/cooker.py     |    2 +-
 bitbake/lib/bb/ui/uievent.py |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index 9075654..60ee5d7 100644
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -330,7 +330,7 @@ class BBCooker:
                                 f.write("%s\n" % json.dumps({"class":event.__module__ + "." + 
event.__class__.__name__, "vars":json.dumps(pickle.dumps(event)) }))
                             except Exception as e:
                                 import traceback
-                                print(e, traceback.format_exc(e))
+                                print(e, traceback.format_exc())
 
 
                     def send(self, event):
diff --git a/bitbake/lib/bb/ui/uievent.py b/bitbake/lib/bb/ui/uievent.py
index ca19166..9542b91 100644
--- a/bitbake/lib/bb/ui/uievent.py
+++ b/bitbake/lib/bb/ui/uievent.py
@@ -116,7 +116,7 @@ class BBUIEventQueue:
                 self.server.handle_request()
             except Exception as e:
                 import traceback
-                logger.error("BBUIEventQueue.startCallbackHandler: Exception while trying to handle request: 
%s\n%s" % (e, traceback.format_exc(e)))
+                logger.error("BBUIEventQueue.startCallbackHandler: Exception while trying to handle request: 
%s\n%s" % (e, traceback.format_exc()))
 
         self.server.server_close()