bbae0c1f7b
Add a NativeDelegate API to pass new processes (forks) to LLGS, and support detaching them via the 'D' packet. A 'D' packet without a specific PID detaches all processes, otherwise it detaches either the specified subprocess or the main process, depending on the passed PID. Differential Revision: https://reviews.llvm.org/D100191
60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
import gdbremote_testcase
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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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class TestGdbRemoteFork(gdbremote_testcase.GdbRemoteTestCaseBase):
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mydir = TestBase.compute_mydir(__file__)
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def fork_and_detach_test(self, variant):
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self.build()
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self.prep_debug_monitor_and_inferior(inferior_args=[variant])
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self.add_qSupported_packets(["multiprocess+",
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"{}-events+".format(variant)])
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ret = self.expect_gdbremote_sequence()
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self.assertIn("{}-events+".format(variant), ret["qSupported_response"])
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self.reset_test_sequence()
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# continue and expect fork
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fork_regex = "[$]T.*;{}:p([0-9a-f]*)[.]([0-9a-f]*).*".format(variant)
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self.test_sequence.add_log_lines([
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"read packet: $c#00",
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{"direction": "send", "regex": fork_regex,
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"capture": {1: "pid", 2: "tid"}},
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], True)
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ret = self.expect_gdbremote_sequence()
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pid = int(ret["pid"], 16)
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self.reset_test_sequence()
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# detach the forked child
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self.test_sequence.add_log_lines([
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"read packet: $D;{:x}#00".format(pid),
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{"direction": "send", "regex": r"[$]OK#.*"},
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], True)
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ret = self.expect_gdbremote_sequence()
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self.reset_test_sequence()
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@add_test_categories(["fork"])
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def test_fork(self):
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self.fork_and_detach_test("fork")
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# resume the parent
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self.test_sequence.add_log_lines([
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"read packet: $c#00",
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{"direction": "send", "regex": r"[$]W00#.*"},
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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_vfork(self):
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self.fork_and_detach_test("vfork")
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# resume the parent
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self.test_sequence.add_log_lines([
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"read packet: $c#00",
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{"direction": "send", "regex": r"[$]T.*vforkdone.*"},
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"read packet: $c#00",
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{"direction": "send", "regex": r"[$]W00#.*"},
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], True)
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self.expect_gdbremote_sequence()
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