131 lines
5.2 KiB
Python
131 lines
5.2 KiB
Python
"""
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Test breakpoint ignore count features.
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"""
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import os, time
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import re
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import unittest2
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import lldb, lldbutil
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from lldbtest import *
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class BreakpointIgnoreCountTestCase(TestBase):
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mydir = "breakpoint_ignore_count"
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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def test_with_dsym_and_run_command(self):
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"""Exercise breakpoint ignore count with 'breakpoint set -i <count>'."""
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self.buildDsym()
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self.breakpoint_ignore_count()
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@python_api_test
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def test_with_dsym_and_python_api(self):
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"""Use Python APIs to set breakpoint ignore count."""
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self.buildDsym()
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self.breakpoint_ignore_count_python()
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def test_with_dwarf_and_run_command(self):
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"""Exercise breakpoint ignore count with 'breakpoint set -i <count>'."""
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self.buildDwarf()
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self.breakpoint_ignore_count()
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@python_api_test
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def test_with_dwarf_and_python_api(self):
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"""Use Python APIs to set breakpoint ignore count."""
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self.buildDwarf()
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self.breakpoint_ignore_count_python()
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to of function 'c'.
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self.line1 = line_number('main.c', '// Find the line number of function "c" here.')
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self.line2 = line_number('main.c', '// b(2) -> c(2) Find the call site of b(2).')
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self.line3 = line_number('main.c', '// a(3) -> c(3) Find the call site of c(3).')
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self.line4 = line_number('main.c', '// a(3) -> c(3) Find the call site of a(3).')
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def breakpoint_ignore_count(self):
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"""Exercise breakpoint ignore count with 'breakpoint set -i <count>'."""
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exe = os.path.join(os.getcwd(), "a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# Create a breakpoint by function name 'c'.
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self.expect("breakpoint set -i 1 -f main.c -l %d" % self.line1, BREAKPOINT_CREATED,
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startstr = "Breakpoint created: 1: file ='main.c', line = %d, locations = 1" %
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self.line1)
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# Now run the program.
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self.runCmd("run", RUN_SUCCEEDED)
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# The process should be stopped at this point.
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self.expect("process status", PROCESS_STOPPED,
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patterns = ['Process .* stopped'])
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# Also check the hit count, which should be 2, due to ignore count of 1.
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self.expect("breakpoint list", BREAKPOINT_HIT_THRICE,
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substrs = ["resolved = 1",
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"hit count = 2"])
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# The frame #0 should correspond to main.c:37, the executable statement
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# in function name 'c'. And frame #2 should point to main.c:45.
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self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT,
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#substrs = ["stop reason = breakpoint"],
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patterns = ["frame #0.*main.c:%d" % self.line1,
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"frame #2.*main.c:%d" % self.line2])
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def breakpoint_ignore_count_python(self):
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"""Use Python APIs to set breakpoint ignore count."""
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exe = os.path.join(os.getcwd(), "a.out")
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target.IsValid(), VALID_TARGET)
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# Now create a breakpoint on main.c by name 'c'.
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breakpoint = target.BreakpointCreateByName('c', 'a.out')
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self.assertTrue(breakpoint.IsValid() and
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breakpoint.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Get the breakpoint location from breakpoint after we verified that,
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# indeed, it has one location.
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location = breakpoint.GetLocationAtIndex(0)
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self.assertTrue(location.IsValid() and
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location.IsEnabled(),
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VALID_BREAKPOINT_LOCATION)
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# Set the ignore count on the breakpoint location.
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location.SetIgnoreCount(2)
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self.assertTrue(location.GetIgnoreCount() == 2,
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"SetIgnoreCount() works correctly")
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# Now launch the process, and do not stop at entry point.
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self.process = target.LaunchProcess([], [], os.ctermid(), 0, False)
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self.process = target.GetProcess()
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self.assertTrue(self.process.IsValid(), PROCESS_IS_VALID)
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# Frame#0 should be on main.c:37, frame#1 should be on main.c:25, and
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# frame#2 should be on main.c:48.
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#lldbutil.PrintStackTraces(self.process)
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frame0 = self.process.GetThreadAtIndex(0).GetFrameAtIndex(0)
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frame1 = self.process.GetThreadAtIndex(0).GetFrameAtIndex(1)
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frame2 = self.process.GetThreadAtIndex(0).GetFrameAtIndex(2)
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self.assertTrue(frame0.GetLineEntry().GetLine() == self.line1 and
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frame1.GetLineEntry().GetLine() == self.line3 and
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frame2.GetLineEntry().GetLine() == self.line4,
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STOPPED_DUE_TO_BREAKPOINT_IGNORE_COUNT)
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# The hit count for the breakpoint should be 3.
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self.assertTrue(breakpoint.GetHitCount() == 3)
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self.process.Continue()
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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