Jonas Devlieghere
bd5da5b539
WebAssembly inferiors are built with -fno-exceptions and run on a wasip1 runtime with no exec/fork/setpgid, no setjmp/longjmp (needs the exception-handling proposal), no memory-protection faults/signals, and no _Float16/__bf16 support. Mark the corresponding API tests as skipped on wasm so they report unsupported instead of failing to build or run.
93 lines
3.4 KiB
Python
93 lines
3.4 KiB
Python
"""Test that we handle inferiors which change their process group"""
|
|
|
|
|
|
import os
|
|
import lldb
|
|
from lldbsuite.test.decorators import *
|
|
from lldbsuite.test.lldbtest import *
|
|
from lldbsuite.test import lldbutil
|
|
|
|
|
|
@skipIfWasm # no fork()/setpgid() on WebAssembly
|
|
class ChangeProcessGroupTestCase(TestBase):
|
|
NO_DEBUG_INFO_TESTCASE = True
|
|
|
|
def setUp(self):
|
|
# Call super's setUp().
|
|
TestBase.setUp(self)
|
|
# Find the line number to break for main.c.
|
|
self.line = line_number("main.c", "// Set breakpoint here")
|
|
|
|
@skipIfFreeBSD # Times out on FreeBSD llvm.org/pr23731
|
|
@skipIfWindows # setpgid call does not exist on Windows
|
|
@expectedFailureAndroid("http://llvm.org/pr23762", api_levels=[16])
|
|
@expectedFailureNetBSD
|
|
@skipIftvOS # fork not available on tvOS.
|
|
@skipIfwatchOS # fork not available on watchOS.
|
|
def test_setpgid(self):
|
|
self.build()
|
|
exe = self.getBuildArtifact("a.out")
|
|
|
|
# Use a file as a synchronization point between test and inferior.
|
|
pid_file_path = lldbutil.append_to_process_working_directory(
|
|
self, "pid_file_%d" % (int(time.time()))
|
|
)
|
|
self.addTearDownHook(
|
|
lambda: self.run_platform_command("rm %s" % (pid_file_path))
|
|
)
|
|
|
|
popen = self.spawnSubprocess(exe, [pid_file_path])
|
|
|
|
pid = lldbutil.wait_for_file_on_target(self, pid_file_path)
|
|
|
|
# make sure we cleanup the forked child also
|
|
def cleanupChild():
|
|
if lldb.remote_platform:
|
|
lldb.remote_platform.Kill(int(pid))
|
|
else:
|
|
if os.path.exists("/proc/" + pid):
|
|
os.kill(int(pid), signal.SIGKILL)
|
|
|
|
self.addTearDownHook(cleanupChild)
|
|
|
|
# Create a target by the debugger.
|
|
target = self.dbg.CreateTarget(exe)
|
|
self.assertTrue(target, VALID_TARGET)
|
|
|
|
listener = lldb.SBListener("my.attach.listener")
|
|
error = lldb.SBError()
|
|
process = target.AttachToProcessWithID(listener, int(pid), error)
|
|
self.assertTrue(error.Success() and process, PROCESS_IS_VALID)
|
|
|
|
# set a breakpoint just before the setpgid() call
|
|
lldbutil.run_break_set_by_file_and_line(
|
|
self, "main.c", self.line, num_expected_locations=-1
|
|
)
|
|
|
|
thread = process.GetSelectedThread()
|
|
|
|
# release the child from its loop
|
|
value = thread.GetSelectedFrame().EvaluateExpression("release_child_flag = 1")
|
|
self.assertTrue(value.IsValid())
|
|
self.assertEqual(value.GetValueAsUnsigned(0), 1)
|
|
process.Continue()
|
|
|
|
# make sure the child's process group id is different from its pid
|
|
value = thread.GetSelectedFrame().EvaluateExpression("(int)getpgid(0)")
|
|
self.assertTrue(value.IsValid())
|
|
self.assertNotEqual(value.GetValueAsUnsigned(0), int(pid))
|
|
|
|
# step over the setpgid() call
|
|
thread.StepOver()
|
|
self.assertStopReason(thread.GetStopReason(), lldb.eStopReasonPlanComplete)
|
|
|
|
# verify that the process group has been set correctly
|
|
# this also checks that we are still in full control of the child
|
|
value = thread.GetSelectedFrame().EvaluateExpression("(int)getpgid(0)")
|
|
self.assertTrue(value.IsValid())
|
|
self.assertEqual(value.GetValueAsUnsigned(0), int(pid))
|
|
|
|
# run to completion
|
|
process.Continue()
|
|
self.assertState(process.GetState(), lldb.eStateExited)
|