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"""
Test lldb breakpoint command add/list/delete.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
import side_effect
class BreakpointCommandTestCase(TestBase):
NO_DEBUG_INFO_TESTCASE = True
mydir = TestBase.compute_mydir(__file__)
@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24528")
@skipIfReproducer # side_effect bypasses reproducer
def not_test_breakpoint_command_sequence(self):
"""Test a sequence of breakpoint command add, list, and delete."""
self.build()
self.breakpoint_command_sequence()
@skipIf(oslist=["windows"], bugnumber="llvm.org/pr44431")
@skipIfReproducer # side_effect bypasses reproducer
def test_script_parameters(self):
"""Test a sequence of breakpoint command add, list, and delete."""
self.build()
self.breakpoint_command_script_parameters()
def test_commands_on_creation(self):
self.build()
self.breakpoint_commands_on_creation()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break inside main().
self.line = line_number('main.c', '// Set break point at this line.')
# disable "There is a running process, kill it and restart?" prompt
self.runCmd("settings set auto-confirm true")
self.addTearDownHook(
lambda: self.runCmd("settings clear auto-confirm"))
def test_delete_all_breakpoints(self):
"""Test that deleting all breakpoints works."""
self.build()
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
lldbutil.run_break_set_by_symbol(self, "main")
lldbutil.run_break_set_by_file_and_line(
self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
self.runCmd("run", RUN_SUCCEEDED)
self.runCmd("breakpoint delete")
self.runCmd("process continue")
self.expect("process status", PROCESS_STOPPED,
patterns=['Process .* exited with status = 0'])
def breakpoint_command_sequence(self):
"""Test a sequence of breakpoint command add, list, and delete."""
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Add three breakpoints on the same line. The first time we don't specify the file,
# since the default file is the one containing main:
lldbutil.run_break_set_by_file_and_line(
self, None, self.line, num_expected_locations=1, loc_exact=True)
lldbutil.run_break_set_by_file_and_line(
self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
lldbutil.run_break_set_by_file_and_line(
self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
# Breakpoint 4 - set at the same location as breakpoint 1 to test
# setting breakpoint commands on two breakpoints at a time
lldbutil.run_break_set_by_file_and_line(
self, None, self.line, num_expected_locations=1, loc_exact=True)
# Make sure relative path source breakpoints work as expected. We test
# with partial paths with and without "./" prefixes.
lldbutil.run_break_set_by_file_and_line(
self, "./main.c", self.line,
num_expected_locations=1, loc_exact=True)
lldbutil.run_break_set_by_file_and_line(
self, "breakpoint_command/main.c", self.line,
num_expected_locations=1, loc_exact=True)
lldbutil.run_break_set_by_file_and_line(
self, "./breakpoint_command/main.c", self.line,
num_expected_locations=1, loc_exact=True)
lldbutil.run_break_set_by_file_and_line(
self, "breakpoint/breakpoint_command/main.c", self.line,
num_expected_locations=1, loc_exact=True)
lldbutil.run_break_set_by_file_and_line(
self, "./breakpoint/breakpoint_command/main.c", self.line,
num_expected_locations=1, loc_exact=True)
# Test relative breakpoints with incorrect paths and make sure we get
# no breakpoint locations
lldbutil.run_break_set_by_file_and_line(
self, "invalid/main.c", self.line,
num_expected_locations=0, loc_exact=True)
lldbutil.run_break_set_by_file_and_line(
self, "./invalid/main.c", self.line,
num_expected_locations=0, loc_exact=True)
# Now add callbacks for the breakpoints just created.
self.runCmd(
"breakpoint command add -s command -o 'frame variable --show-types --scope' 1 4")
self.runCmd(
"breakpoint command add -s python -o 'import side_effect; side_effect.one_liner = \"one liner was here\"' 2")
import side_effect
self.runCmd("command script import --allow-reload ./bktptcmd.py")
self.runCmd(
"breakpoint command add --python-function bktptcmd.function 3")
# Check that the breakpoint commands are correctly set.
# The breakpoint list now only contains breakpoint 1.
self.expect(
"breakpoint list", "Breakpoints 1 & 2 created", substrs=[
"2: file = 'main.c', line = %d, exact_match = 0, locations = 1" %
self.line], patterns=[
"1: file = '.*main.c', line = %d, exact_match = 0, locations = 1" %
self.line])
self.expect(
"breakpoint list -f",
"Breakpoints 1 & 2 created",
substrs=[
"2: file = 'main.c', line = %d, exact_match = 0, locations = 1" %
self.line],
patterns=[
"1: file = '.*main.c', line = %d, exact_match = 0, locations = 1" %
self.line,
"1.1: .+at main.c:%d:?[0-9]*, .+unresolved, hit count = 0" %
self.line,
"2.1: .+at main.c:%d:?[0-9]*, .+unresolved, hit count = 0" %
self.line])
self.expect("breakpoint command list 1", "Breakpoint 1 command ok",
substrs=["Breakpoint commands:",
"frame variable --show-types --scope"])
self.expect("breakpoint command list 2", "Breakpoint 2 command ok",
substrs=["Breakpoint commands (Python):",
"import side_effect",
"side_effect.one_liner"])
self.expect("breakpoint command list 3", "Breakpoint 3 command ok",
substrs=["Breakpoint commands (Python):",
"bktptcmd.function(frame, bp_loc, internal_dict)"])
self.expect("breakpoint command list 4", "Breakpoint 4 command ok",
substrs=["Breakpoint commands:",
"frame variable --show-types --scope"])
self.runCmd("breakpoint delete 4")
# Next lets try some other breakpoint kinds. First break with a regular expression
# and then specify only one file. The first time we should get two locations,
# the second time only one:
lldbutil.run_break_set_by_regexp(
self, r"._MyFunction", num_expected_locations=2)
lldbutil.run_break_set_by_regexp(
self,
r"._MyFunction",
extra_options="-f a.c",
num_expected_locations=1)
lldbutil.run_break_set_by_regexp(
self,
r"._MyFunction",
extra_options="-f a.c -f b.c",
num_expected_locations=2)
# Now try a source regex breakpoint:
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)
lldbutil.run_break_set_by_source_regexp(
self,
r"is about to return [12]0",
extra_options="-f a.c",
num_expected_locations=1)
# Reset our canary variables and run the program.
side_effect.one_liner = None
side_effect.bktptcmd = None
self.runCmd("run", RUN_SUCCEEDED)
# Check the value of canary variables.
self.assertEquals("one liner was here", side_effect.one_liner)
self.assertEquals("function was here", side_effect.bktptcmd)
# Finish the program.
self.runCmd("process continue")
# Remove the breakpoint command associated with breakpoint 1.
self.runCmd("breakpoint command delete 1")
# Remove breakpoint 2.
self.runCmd("breakpoint delete 2")
self.expect(
"breakpoint command list 1",
startstr="Breakpoint 1 does not have an associated command.")
self.expect(
"breakpoint command list 2",
error=True,
startstr="error: '2' is not a currently valid breakpoint ID.")
# The breakpoint list now only contains breakpoint 1.
self.expect(
"breakpoint list -f",
"Breakpoint 1 exists",
patterns=[
"1: file = '.*main.c', line = %d, exact_match = 0, locations = 1, resolved = 1" %
self.line,
"hit count = 1"])
# Not breakpoint 2.
self.expect(
"breakpoint list -f",
"No more breakpoint 2",
matching=False,
substrs=[
"2: file = 'main.c', line = %d, exact_match = 0, locations = 1, resolved = 1" %
self.line])
# Run the program again, with breakpoint 1 remaining.
self.runCmd("run", RUN_SUCCEEDED)
# We should be stopped again due to breakpoint 1.
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs=['stopped',
'stop reason = breakpoint'])
# The breakpoint should have a hit count of 2.
self.expect("breakpoint list -f", BREAKPOINT_HIT_TWICE,
substrs=['resolved, hit count = 2'])
def breakpoint_command_script_parameters(self):
"""Test that the frame and breakpoint location are being properly passed to the script breakpoint command function."""
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Add a breakpoint.
lldbutil.run_break_set_by_file_and_line(
self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
# Now add callbacks for the breakpoints just created.
self.runCmd("breakpoint command add -s python -o 'import side_effect; side_effect.frame = str(frame); side_effect.bp_loc = str(bp_loc)' 1")
# Reset canary variables and run.
side_effect.frame = None
side_effect.bp_loc = None
self.runCmd("run", RUN_SUCCEEDED)
self.expect(side_effect.frame, exe=False, startstr="frame #0:")
self.expect(side_effect.bp_loc, exe=False,
patterns=["1.* where = .*main .* resolved, hit count = 1"])
def breakpoint_commands_on_creation(self):
"""Test that setting breakpoint commands when creating the breakpoint works"""
exe = self.getBuildArtifact("a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target.IsValid(), "Created an invalid target.")
# Add a breakpoint.
lldbutil.run_break_set_by_file_and_line(
self, "main.c", self.line, num_expected_locations=1, loc_exact=True,
extra_options='-C bt -C "thread list" -C continue')
bkpt = target.FindBreakpointByID(1)
self.assertTrue(bkpt.IsValid(), "Couldn't find breakpoint 1")
com_list = lldb.SBStringList()
bkpt.GetCommandLineCommands(com_list)
self.assertEqual(com_list.GetSize(), 3, "Got the wrong number of commands")
self.assertEqual(com_list.GetStringAtIndex(0), "bt", "First bt")
self.assertEqual(com_list.GetStringAtIndex(1), "thread list", "Next thread list")
self.assertEqual(com_list.GetStringAtIndex(2), "continue", "Last continue")
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