forked from OSchip/llvm-project
205 lines
9.3 KiB
Python
205 lines
9.3 KiB
Python
"""
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Test lldb breakpoint command add/list/delete.
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"""
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import lldb_shared
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import os, time
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import lldb
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from lldbtest import *
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import lldbutil
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class BreakpointCommandTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@classmethod
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def classCleanup(cls):
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"""Cleanup the test byproduct of breakpoint_command_sequence(self)."""
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cls.RemoveTempFile("output.txt")
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cls.RemoveTempFile("output2.txt")
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@expectedFailureWindows("llvm.org/pr24528")
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def test(self):
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"""Test a sequence of breakpoint command add, list, and delete."""
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self.build()
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self.breakpoint_command_sequence()
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self.breakpoint_command_script_parameters ()
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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 break inside main().
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self.line = line_number('main.c', '// Set break point at this line.')
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# disable "There is a running process, kill it and restart?" prompt
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self.runCmd("settings set auto-confirm true")
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self.addTearDownHook(lambda: self.runCmd("settings clear auto-confirm"))
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def breakpoint_command_sequence(self):
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"""Test a sequence of breakpoint command add, list, and delete."""
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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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# Add three breakpoints on the same line. The first time we don't specify the file,
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# since the default file is the one containing main:
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lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1, loc_exact=True)
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lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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# Breakpoint 4 - set at the same location as breakpoint 1 to test setting breakpoint commands on two breakpoints at a time
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lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1, loc_exact=True)
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# Now add callbacks for the breakpoints just created.
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self.runCmd("breakpoint command add -s command -o 'frame variable --show-types --scope' 1 4")
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self.runCmd("breakpoint command add -s python -o 'here = open(\"output.txt\", \"w\"); print >> here, \"lldb\"; here.close()' 2")
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self.runCmd("breakpoint command add --python-function bktptcmd.function 3")
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# Check that the breakpoint commands are correctly set.
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# The breakpoint list now only contains breakpoint 1.
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self.expect("breakpoint list", "Breakpoints 1 & 2 created",
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substrs = ["2: file = 'main.c', line = %d, exact_match = 0, locations = 1" % self.line],
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patterns = ["1: file = '.*main.c', line = %d, exact_match = 0, locations = 1" % self.line] )
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self.expect("breakpoint list -f", "Breakpoints 1 & 2 created",
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substrs = ["2: file = 'main.c', line = %d, exact_match = 0, locations = 1" % self.line],
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patterns = ["1: file = '.*main.c', line = %d, exact_match = 0, locations = 1" % self.line,
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"1.1: .+at main.c:%d, .+unresolved, hit count = 0" % self.line,
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"2.1: .+at main.c:%d, .+unresolved, hit count = 0" % self.line])
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self.expect("breakpoint command list 1", "Breakpoint 1 command ok",
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substrs = ["Breakpoint commands:",
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"frame variable --show-types --scope"])
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self.expect("breakpoint command list 2", "Breakpoint 2 command ok",
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substrs = ["Breakpoint commands:",
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"here = open",
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"print >> here",
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"here.close()"])
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self.expect("breakpoint command list 3", "Breakpoint 3 command ok",
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substrs = ["Breakpoint commands:",
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"bktptcmd.function(frame, bp_loc, internal_dict)"])
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self.expect("breakpoint command list 4", "Breakpoint 4 command ok",
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substrs = ["Breakpoint commands:",
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"frame variable --show-types --scope"])
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self.runCmd("breakpoint delete 4")
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self.runCmd("command script import --allow-reload ./bktptcmd.py")
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# Next lets try some other breakpoint kinds. First break with a regular expression
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# and then specify only one file. The first time we should get two locations,
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# the second time only one:
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lldbutil.run_break_set_by_regexp (self, r"._MyFunction", num_expected_locations=2)
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lldbutil.run_break_set_by_regexp (self, r"._MyFunction", extra_options="-f a.c", num_expected_locations=1)
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lldbutil.run_break_set_by_regexp (self, r"._MyFunction", extra_options="-f a.c -f b.c", num_expected_locations=2)
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# Now try a source regex breakpoint:
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lldbutil.run_break_set_by_source_regexp (self, r"is about to return [12]0", extra_options="-f a.c -f b.c", num_expected_locations=2)
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lldbutil.run_break_set_by_source_regexp (self, r"is about to return [12]0", extra_options="-f a.c", num_expected_locations=1)
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# Run the program. Remove 'output.txt' if it exists.
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self.RemoveTempFile("output.txt")
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self.RemoveTempFile("output2.txt")
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self.runCmd("run", RUN_SUCCEEDED)
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# Check that the file 'output.txt' exists and contains the string "lldb".
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# The 'output.txt' file should now exist.
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self.assertTrue(os.path.isfile("output.txt"),
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"'output.txt' exists due to breakpoint command for breakpoint 2.")
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self.assertTrue(os.path.isfile("output2.txt"),
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"'output2.txt' exists due to breakpoint command for breakpoint 3.")
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# Read the output file produced by running the program.
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with open('output.txt', 'r') as f:
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output = f.read()
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self.expect(output, "File 'output.txt' and the content matches", exe=False,
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startstr = "lldb")
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with open('output2.txt', 'r') as f:
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output = f.read()
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self.expect(output, "File 'output2.txt' and the content matches", exe=False,
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startstr = "lldb")
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# Finish the program.
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self.runCmd("process continue")
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# Remove the breakpoint command associated with breakpoint 1.
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self.runCmd("breakpoint command delete 1")
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# Remove breakpoint 2.
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self.runCmd("breakpoint delete 2")
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self.expect("breakpoint command list 1",
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startstr = "Breakpoint 1 does not have an associated command.")
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self.expect("breakpoint command list 2", error=True,
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startstr = "error: '2' is not a currently valid breakpoint id.")
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# The breakpoint list now only contains breakpoint 1.
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self.expect("breakpoint list -f", "Breakpoint 1 exists",
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patterns = ["1: file = '.*main.c', line = %d, exact_match = 0, locations = 1, resolved = 1" %
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self.line,
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"hit count = 1"])
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# Not breakpoint 2.
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self.expect("breakpoint list -f", "No more breakpoint 2", matching=False,
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substrs = ["2: file = 'main.c', line = %d, exact_match = 0, locations = 1, resolved = 1" %
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self.line])
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# Run the program again, with breakpoint 1 remaining.
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self.runCmd("run", RUN_SUCCEEDED)
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# We should be stopped again due to breakpoint 1.
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs = ['stopped',
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'stop reason = breakpoint'])
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# The breakpoint should have a hit count of 2.
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self.expect("breakpoint list -f", BREAKPOINT_HIT_TWICE,
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substrs = ['resolved, hit count = 2'])
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def breakpoint_command_script_parameters (self):
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"""Test that the frame and breakpoint location are being properly passed to the script breakpoint command function."""
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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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# Add a breakpoint.
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lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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# Now add callbacks for the breakpoints just created.
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self.runCmd("breakpoint command add -s python -o 'here = open(\"output-2.txt\", \"w\"); print >> here, frame; print >> here, bp_loc; here.close()' 1")
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# Remove 'output-2.txt' if it already exists.
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if (os.path.exists('output-2.txt')):
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os.remove ('output-2.txt')
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# Run program, hit breakpoint, and hopefully write out new version of 'output-2.txt'
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self.runCmd ("run", RUN_SUCCEEDED)
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# Check that the file 'output.txt' exists and contains the string "lldb".
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# The 'output-2.txt' file should now exist.
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self.assertTrue(os.path.isfile("output-2.txt"),
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"'output-2.txt' exists due to breakpoint command for breakpoint 1.")
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# Read the output file produced by running the program.
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with open('output-2.txt', 'r') as f:
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output = f.read()
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self.expect (output, "File 'output-2.txt' and the content matches", exe=False,
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startstr = "frame #0:",
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patterns = ["1.* where = .*main .* resolved, hit count = 1" ])
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# Now remove 'output-2.txt'
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os.remove ('output-2.txt')
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