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