forked from OSchip/llvm-project
97 lines
3.8 KiB
Python
97 lines
3.8 KiB
Python
"""
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Test thread stepping features in combination with frame select.
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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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import lldbutil
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class ThreadSteppingTestCase(TestBase):
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mydir = os.path.join("lang", "c", "stepping")
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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@dsym_test
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def test_step_out_with_dsym_and_run_command(self):
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"""Exercise thread step-out and frame select followed by thread step-out."""
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self.buildDwarf()
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self.thread_step_out()
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@dwarf_test
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def test_step_out_with_dwarf_and_run_command(self):
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"""Exercise thread step-out and frame select followed by thread step-out."""
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self.buildDwarf()
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self.thread_step_out()
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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', '// frame select 2, thread step-out while stopped at "c(1)"')
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self.line3 = line_number('main.c', '// thread step-out while stopped at "c(2)"')
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self.line4 = line_number('main.c', '// frame select 1, thread step-out while stopped at "c(3)"')
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def thread_step_out(self):
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"""Exercise thread step-out and frame select followed by thread step-out."""
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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 inside function 'c'.
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lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line1, num_expected_locations=1, loc_exact=True)
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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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# The frame #0 should correspond to main.c:32, the executable statement
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# in function name 'c'. And frame #3 should point to main.c:37.
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self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT,
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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 #3.*main.c:%d" % self.line2])
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# We want to move the pc to frame #3. This can be accomplished by
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# 'frame select 2', followed by 'thread step-out'.
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self.runCmd("frame select 2")
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self.runCmd("thread step-out")
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self.expect("thread backtrace", STEP_OUT_SUCCEEDED,
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substrs = ["stop reason = step out"],
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patterns = ["frame #0.*main.c:%d" % self.line2])
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# Let's move on to a single step-out case.
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self.runCmd("process continue")
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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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self.runCmd("thread step-out")
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self.expect("thread backtrace", STEP_OUT_SUCCEEDED,
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substrs = ["stop reason = step out"],
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patterns = ["frame #0.*main.c:%d" % self.line3])
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# Do another frame selct, followed by thread step-out.
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self.runCmd("process continue")
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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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self.runCmd("frame select 1")
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self.runCmd("thread step-out")
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self.expect("thread backtrace", STEP_OUT_SUCCEEDED,
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substrs = ["stop reason = step out"],
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patterns = ["frame #0.*main.c:%d" % self.line4])
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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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