f8603c1f6d
Support using the vCont packet to resume multiple processes simultaneously when in non-stop mode. The new logic now assumes that: - actions without a thread-id or with process id of "p-1" apply to all debugged processes - actions with a thread-id without process id apply to the current process (m_continue_process) As with the other continue packets, it is only possible to resume processes that are currently stopped (or stop these that are running). It is unsupported to resume or stop individual threads of a running process. Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.llvm.org/D128989
205 lines
8.3 KiB
Python
205 lines
8.3 KiB
Python
from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from fork_testbase import GdbRemoteForkTestBase
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class TestGdbRemoteForkNonStop(GdbRemoteForkTestBase):
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def setUp(self):
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GdbRemoteForkTestBase.setUp(self)
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if self.getPlatform() == "linux" and self.getArchitecture() in ['arm', 'aarch64']:
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self.skipTest("Unsupported for Arm/AArch64 Linux")
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@add_test_categories(["fork"])
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def test_vfork_nonstop(self):
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parent_pid, parent_tid = self.fork_and_detach_test("vfork",
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nonstop=True)
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# resume the parent
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self.test_sequence.add_log_lines([
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"read packet: $c#00",
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"send packet: $OK#00",
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{"direction": "send",
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"regex": r"%Stop:T[0-9a-fA-F]{{2}}thread:p{}[.]{}.*vforkdone.*"
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.format(parent_pid, parent_tid),
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},
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"read packet: $vStopped#00",
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"send packet: $OK#00",
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"read packet: $c#00",
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"send packet: $OK#00",
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"send packet: %Stop:W00;process:{}#00".format(parent_pid),
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"read packet: $vStopped#00",
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"send packet: $OK#00",
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], True)
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self.expect_gdbremote_sequence()
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@add_test_categories(["fork"])
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def test_fork_nonstop(self):
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parent_pid, _ = self.fork_and_detach_test("fork", nonstop=True)
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# resume the parent
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self.test_sequence.add_log_lines([
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"read packet: $c#00",
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"send packet: $OK#00",
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"send packet: %Stop:W00;process:{}#00".format(parent_pid),
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"read packet: $vStopped#00",
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"send packet: $OK#00",
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], True)
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self.expect_gdbremote_sequence()
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@add_test_categories(["fork"])
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def test_fork_follow_nonstop(self):
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self.fork_and_follow_test("fork", nonstop=True)
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@add_test_categories(["fork"])
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def test_vfork_follow_nonstop(self):
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self.fork_and_follow_test("vfork", nonstop=True)
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@add_test_categories(["fork"])
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def test_detach_all_nonstop(self):
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self.detach_all_test(nonstop=True)
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@add_test_categories(["fork"])
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def test_kill_all_nonstop(self):
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parent_pid, _, child_pid, _ = self.start_fork_test(["fork"],
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nonstop=True)
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exit_regex = "X09;process:([0-9a-f]+)"
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# Depending on a potential race, the second kill may make it into
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# the async queue before we issue vStopped or after. In the former
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# case, we should expect the exit status in reply to vStopped.
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# In the latter, we should expect an OK response (queue empty),
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# followed by another async notification.
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vstop_regex = "[$](OK|{})#.*".format(exit_regex)
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self.test_sequence.add_log_lines([
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# kill all processes
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"read packet: $k#00",
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"send packet: $OK#00",
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{"direction": "send", "regex": "%Stop:{}#.*".format(exit_regex),
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"capture": {1: "pid1"}},
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"read packet: $vStopped#00",
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{"direction": "send", "regex": vstop_regex,
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"capture": {1: "vstop_reply", 2: "pid2"}},
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], True)
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ret = self.expect_gdbremote_sequence()
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pid1 = ret["pid1"]
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if ret["vstop_reply"] == "OK":
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self.reset_test_sequence()
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self.test_sequence.add_log_lines([
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{"direction": "send", "regex": "%Stop:{}#.*".format(exit_regex),
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"capture": {1: "pid2"}},
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], True)
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ret = self.expect_gdbremote_sequence()
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pid2 = ret["pid2"]
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self.reset_test_sequence()
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self.test_sequence.add_log_lines([
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"read packet: $vStopped#00",
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"send packet: $OK#00",
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], True)
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self.expect_gdbremote_sequence()
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self.assertEqual(set([pid1, pid2]), set([parent_pid, child_pid]))
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@add_test_categories(["fork"])
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def test_vkill_both_nonstop(self):
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self.vkill_test(kill_parent=True, kill_child=True, nonstop=True)
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@add_test_categories(["fork"])
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def test_c_interspersed_nonstop(self):
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self.resume_one_test(run_order=["parent", "child", "parent", "child"],
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nonstop=True)
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@add_test_categories(["fork"])
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def test_vCont_interspersed_nonstop(self):
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self.resume_one_test(run_order=["parent", "child", "parent", "child"],
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use_vCont=True, nonstop=True)
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def get_all_output_via_vStdio(self, output_test):
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# The output may be split into an arbitrary number of messages.
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# Loop until we have everything. The first message is waiting for us
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# in the packet queue.
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output = self._server.get_raw_output_packet()
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while not output_test(output):
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self._server.send_packet(b"vStdio")
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output += self._server.get_raw_output_packet()
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return output
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@add_test_categories(["fork"])
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def test_c_both_nonstop(self):
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lock1 = self.getBuildArtifact("lock1")
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lock2 = self.getBuildArtifact("lock2")
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parent_pid, parent_tid, child_pid, child_tid = (
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self.start_fork_test(["fork", "process:sync:" + lock1, "print-pid",
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"process:sync:" + lock2, "stop"],
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nonstop=True))
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self.test_sequence.add_log_lines([
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"read packet: $Hcp{}.{}#00".format(parent_pid, parent_tid),
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"send packet: $OK#00",
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"read packet: $c#00",
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"send packet: $OK#00",
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"read packet: $Hcp{}.{}#00".format(child_pid, child_tid),
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"send packet: $OK#00",
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"read packet: $c#00",
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"send packet: $OK#00",
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{"direction": "send", "regex": "%Stop:T.*"},
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], True)
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self.expect_gdbremote_sequence()
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output = self.get_all_output_via_vStdio(
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lambda output: output.count(b"PID: ") >= 2)
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self.assertEqual(output.count(b"PID: "), 2)
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self.assertIn("PID: {}".format(int(parent_pid, 16)).encode(), output)
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self.assertIn("PID: {}".format(int(child_pid, 16)).encode(), output)
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@add_test_categories(["fork"])
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def test_vCont_both_nonstop(self):
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lock1 = self.getBuildArtifact("lock1")
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lock2 = self.getBuildArtifact("lock2")
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parent_pid, parent_tid, child_pid, child_tid = (
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self.start_fork_test(["fork", "process:sync:" + lock1, "print-pid",
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"process:sync:" + lock2, "stop"],
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nonstop=True))
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self.test_sequence.add_log_lines([
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"read packet: $vCont;c:p{}.{};c:p{}.{}#00".format(
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parent_pid, parent_tid, child_pid, child_tid),
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"send packet: $OK#00",
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{"direction": "send", "regex": "%Stop:T.*"},
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], True)
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self.expect_gdbremote_sequence()
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output = self.get_all_output_via_vStdio(
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lambda output: output.count(b"PID: ") >= 2)
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self.assertEqual(output.count(b"PID: "), 2)
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self.assertIn("PID: {}".format(int(parent_pid, 16)).encode(), output)
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self.assertIn("PID: {}".format(int(child_pid, 16)).encode(), output)
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def vCont_both_nonstop_test(self, vCont_packet):
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lock1 = self.getBuildArtifact("lock1")
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lock2 = self.getBuildArtifact("lock2")
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parent_pid, parent_tid, child_pid, child_tid = (
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self.start_fork_test(["fork", "process:sync:" + lock1, "print-pid",
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"process:sync:" + lock2, "stop"],
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nonstop=True))
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self.test_sequence.add_log_lines([
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"read packet: ${}#00".format(vCont_packet),
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"send packet: $OK#00",
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{"direction": "send", "regex": "%Stop:T.*"},
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], True)
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self.expect_gdbremote_sequence()
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output = self.get_all_output_via_vStdio(
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lambda output: output.count(b"PID: ") >= 2)
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self.assertEqual(output.count(b"PID: "), 2)
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self.assertIn("PID: {}".format(int(parent_pid, 16)).encode(), output)
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self.assertIn("PID: {}".format(int(child_pid, 16)).encode(), output)
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@add_test_categories(["fork"])
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def test_vCont_both_implicit_nonstop(self):
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self.vCont_both_nonstop_test("vCont;c")
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@add_test_categories(["fork"])
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def test_vCont_both_minus_one_nonstop(self):
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self.vCont_both_nonstop_test("vCont;c:p-1.-1")
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