mirror of
https://github.com/ivellioscolin/pykd.git
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66 lines
2.3 KiB
Python
66 lines
2.3 KiB
Python
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"""Debug events handler: test exceptions and debug breaks"""
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import unittest
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import target
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import pykd
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class BreakExceptionHandler(pykd.eventHandler):
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"""Track load/unload module implementation"""
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def __init__(self, client):
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pykd.eventHandler.__init__(self, client)
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self.client = client
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self.wasSecondChance = False
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self.wasBreakpoint = False
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self.bpLastModuleName = ""
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self.bpCount = 0
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self.firstChanceAccessAddresses = []
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self.secondChanceAccessAddresses = []
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def onBreakpoint(self, bpId):
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"""Breakpoint handler"""
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self.wasBreakpoint = True
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return pykd.DEBUG_STATUS_NO_CHANGE
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def onException(self, exceptParams):
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"""Exception handler"""
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self.wasSecondChance = not exceptParams["FirstChance"]
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if exceptParams["Code"] == pykd.EXCEPTION_ACCESS_VIOLATION:
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if self.wasSecondChance:
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print exceptParams["Parameters"]
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self.secondChanceAccessAddresses.append( exceptParams["Parameters"][1] )
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else:
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self.firstChanceAccessAddresses.append( exceptParams["Parameters"][1] )
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elif exceptParams["Code"] == pykd.EXCEPTION_BREAKPOINT:
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self.bpCount += 1
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return pykd.DEBUG_STATUS_BREAK if self.wasSecondChance else pykd.DEBUG_STATUS_NO_CHANGE
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class EhExceptionBreakpointTest(unittest.TestCase):
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"""Unit tests of exceptions end breakpoint handling"""
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def testBreakpointException(self):
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"""Start new process and track exceptions/breakpoints"""
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testClient = pykd.createDbgClient()
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testClient.startProcess( target.appPath + " -testExceptions" )
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testClient.dbgCommand( ".reload /f; bp targetapp!doExeptions" )
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breakExceptionHandler = BreakExceptionHandler( testClient )
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while not breakExceptionHandler.wasSecondChance:
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testClient.go()
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self.assertTrue( breakExceptionHandler.wasBreakpoint )
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self.assertEqual( [2, 3], breakExceptionHandler.firstChanceAccessAddresses )
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self.assertEqual( 2, breakExceptionHandler.bpCount ) # main and doExeptions
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self.assertEqual( [3, ], breakExceptionHandler.secondChanceAccessAddresses )
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