f8865aa876
The inferior used in the process launch test prints out its working directory using the `getcwd` function, which is not allowed to return symbolic links in the path components. When testing against the output from `getcwd` we should resolve the full path to match the expected output. The source manager test sets a breakpoint on a main-copy.c file that is copied into the build output directory. The source manager resolves this path to its real location. When testing the output from the source cache we need to resolve the expected path in the test to remove symlinks.
267 lines
9.0 KiB
Python
267 lines
9.0 KiB
Python
"""
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Test lldb process launch flags.
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"""
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import os
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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from pathlib import Path
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class ProcessLaunchTestCase(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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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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self.runCmd("settings set auto-confirm true")
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def tearDown(self):
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self.runCmd("settings clear auto-confirm")
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TestBase.tearDown(self)
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@skipIfRemote
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def test_io(self):
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"""Test that process launch I/O redirection flags work properly."""
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self.build()
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exe = self.getBuildArtifact("a.out")
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self.expect("file " + exe, patterns=["Current executable set to .*a.out"])
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in_file = os.path.join(self.getSourceDir(), "input-file.txt")
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out_file = lldbutil.append_to_process_working_directory(self, "output-test.out")
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err_file = lldbutil.append_to_process_working_directory(self, "output-test.err")
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# Make sure the output files do not exist before launching the process
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try:
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os.remove(out_file)
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except OSError:
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pass
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try:
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os.remove(err_file)
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except OSError:
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pass
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launch_command = "process launch -i '{0}' -o '{1}' -e '{2}' -w '{3}'".format(
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in_file, out_file, err_file, self.get_process_working_directory()
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)
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if lldb.remote_platform:
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self.runCmd(
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'platform put-file "{local}" "{remote}"'.format(
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local=in_file, remote=in_file
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)
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)
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self.expect(launch_command, patterns=["Process .* launched: .*a.out"])
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success = True
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err_msg = ""
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out = lldbutil.read_file_on_target(self, out_file)
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if out != "This should go to stdout.\n":
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success = False
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err_msg = (
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err_msg + " ERROR: stdout file does not contain correct output.\n"
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)
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err = lldbutil.read_file_on_target(self, err_file)
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if err != "This should go to stderr.\n":
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success = False
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err_msg = (
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err_msg + " ERROR: stderr file does not contain correct output.\n"
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)
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if not success:
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self.fail(err_msg)
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# rdar://problem/9056462
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# The process launch flag '-w' for setting the current working directory
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# not working?
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@skipIfRemote
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@expectedFailureAll(oslist=["freebsd", "linux"], bugnumber="llvm.org/pr20265")
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@expectedFailureNetBSD
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def test_set_working_dir_nonexisting(self):
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"""Test that '-w dir' fails to set the working dir when running the inferior with a dir which doesn't exist."""
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d = {"CXX_SOURCES": "print_cwd.cpp"}
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self.build(dictionary=d)
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self.setTearDownCleanup(d)
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exe = self.getBuildArtifact("a.out")
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self.runCmd("file " + exe)
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mywd = "my_working_dir"
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out_file_name = "my_working_dir_test.out"
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err_file_name = "my_working_dir_test.err"
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my_working_dir_path = self.getBuildArtifact(mywd)
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out_file_path = os.path.join(my_working_dir_path, out_file_name)
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err_file_path = os.path.join(my_working_dir_path, err_file_name)
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# Check that we get an error when we have a nonexisting path
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invalid_dir_path = mywd + "z"
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launch_command = "process launch -w %s -o %s -e %s" % (
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invalid_dir_path,
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out_file_path,
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err_file_path,
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)
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self.expect(
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launch_command,
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error=True,
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patterns=["error:.* No such file or directory: %s" % invalid_dir_path],
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)
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@skipIfRemote
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def test_set_working_dir_existing(self):
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"""Test that '-w dir' sets the working dir when running the inferior."""
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d = {"CXX_SOURCES": "print_cwd.cpp"}
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self.build(dictionary=d)
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self.setTearDownCleanup(d)
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exe = self.getBuildArtifact("a.out")
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self.runCmd("file " + exe)
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mywd = "my_working_dir"
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out_file_name = "my_working_dir_test.out"
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err_file_name = "my_working_dir_test.err"
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my_working_dir_path = self.getBuildArtifact(mywd)
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lldbutil.mkdir_p(my_working_dir_path)
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out_file_path = os.path.join(my_working_dir_path, out_file_name)
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err_file_path = os.path.join(my_working_dir_path, err_file_name)
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# Make sure the output files do not exist before launching the process
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try:
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os.remove(out_file_path)
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os.remove(err_file_path)
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except OSError:
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pass
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launch_command = "process launch -w %s -o %s -e %s" % (
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my_working_dir_path,
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out_file_path,
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err_file_path,
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)
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self.expect(launch_command, patterns=["Process .* launched: .*a.out"])
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success = True
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err_msg = ""
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# Check to see if the 'stdout' file was created
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try:
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out_f = open(out_file_path)
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except IOError:
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success = False
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err_msg = err_msg + "ERROR: stdout file was not created.\n"
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else:
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# Check to see if the 'stdout' file contains the right output
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line = out_f.readline()
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if self.TraceOn():
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print("line:", line)
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if not re.search(mywd, line):
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success = False
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err_msg = (
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err_msg + "The current working directory was not set correctly.\n"
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)
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out_f.close()
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# Try to delete the 'stdout' and 'stderr' files
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try:
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os.remove(out_file_path)
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os.remove(err_file_path)
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except OSError:
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pass
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if not success:
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self.fail(err_msg)
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def test_environment_with_special_char(self):
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"""Test that environment variables containing '*' and '}' are handled correctly by the inferior."""
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source = "print_env.cpp"
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d = {"CXX_SOURCES": source}
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self.build(dictionary=d)
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self.setTearDownCleanup(d)
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evil_var = "INIT*MIDDLE}TAIL"
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target = self.createTestTarget()
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main_source_spec = lldb.SBFileSpec(source)
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breakpoint = target.BreakpointCreateBySourceRegex(
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"// Set breakpoint here.", main_source_spec
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)
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process = target.LaunchSimple(
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None, ["EVIL=" + evil_var], self.get_process_working_directory()
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)
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self.assertEqual(process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
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threads = lldbutil.get_threads_stopped_at_breakpoint(process, breakpoint)
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self.assertEqual(len(threads), 1)
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frame = threads[0].GetFrameAtIndex(0)
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sbvalue = frame.EvaluateExpression("evil")
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value = sbvalue.GetSummary().strip('"')
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self.assertEqual(value, evil_var)
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process.Continue()
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self.assertState(process.GetState(), lldb.eStateExited, PROCESS_EXITED)
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@skipIfRemote
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def test_target_launch_working_dir_prop(self):
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"""Test that the setting `target.launch-working-dir` is correctly used when launching a process."""
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d = {"CXX_SOURCES": "print_cwd.cpp"}
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self.build(dictionary=d)
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self.setTearDownCleanup(d)
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exe = self.getBuildArtifact("a.out")
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self.runCmd("file " + exe)
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mywd = "my_working_dir"
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out_file_name = "my_working_dir_test.out"
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my_working_dir_path = Path(self.getBuildArtifact(mywd)).resolve()
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lldbutil.mkdir_p(my_working_dir_path)
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out_file_path = os.path.join(my_working_dir_path, out_file_name)
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another_working_dir_path = Path(
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os.path.join(my_working_dir_path, "..")
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).resolve()
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# If -w is not passed to process launch, then the setting will be used.
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self.runCmd(
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f"settings set target.launch-working-dir {another_working_dir_path}"
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)
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launch_command = f"process launch -o {out_file_path}"
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self.expect(
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launch_command,
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patterns=["Process .* launched: .*a.out"],
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)
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out = lldbutil.read_file_on_target(self, out_file_path)
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self.assertIn(f"stdout: {another_working_dir_path}", out)
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# If -w is passed to process launch, that value will be used instead of the setting.
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launch_command = f"process launch -w {my_working_dir_path} -o {out_file_path}"
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self.expect(
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launch_command,
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patterns=["Process .* launched: .*a.out"],
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)
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out = lldbutil.read_file_on_target(self, out_file_path)
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self.assertIn(f"stdout: {my_working_dir_path}", out)
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# If set to empty, then LLDB's cwd will be used to launch the process.
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self.runCmd(f"settings set target.launch-working-dir ''")
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launch_command = f"process launch -o {out_file_path}"
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self.expect(
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launch_command,
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patterns=["Process .* launched: .*a.out"],
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)
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out = lldbutil.read_file_on_target(self, out_file_path)
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self.assertNotIn(f"stdout: {another_working_dir_path}", out)
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