8ccfcab34f
Previously we would persist the flags indicating whether the remote side supports a particular feature across reconnects, which is obviously not a good idea. I implement the clearing by nuking (its the only way to be sure :) the entire GDBRemoteCommunication object in the disconnect operation and creating a new one upon connection. This allows us to maintain a nice invariant that the GDBRemoteCommunication object (which is now a pointer) exists only if it is connected. The downside to that is that a lot of functions now needs to check the validity of the pointer instead of blindly accessing the object. The process communication does not suffer from the same issue because we always destroy the entire Process object for a relaunch. Differential Revision: https://reviews.llvm.org/D116539
241 lines
8.8 KiB
Python
241 lines
8.8 KiB
Python
from lldbsuite.test.gdbclientutils import *
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbgdbclient import GDBPlatformClientTestBase
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class TestGDBRemotePlatformFile(GDBPlatformClientTestBase):
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mydir = GDBPlatformClientTestBase.compute_mydir(__file__)
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def test_file(self):
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"""Test mock operations on a remote file"""
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class Responder(MockGDBServerResponder):
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def vFile(self, packet):
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if packet.startswith("vFile:open:"):
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return "F10"
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elif packet.startswith("vFile:pread:"):
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return "Fd;frobnicator"
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elif packet.startswith("vFile:pwrite:"):
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return "Fa"
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elif packet.startswith("vFile:close:"):
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return "F0"
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return "F-1,58"
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self.server.responder = Responder()
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self.match("platform file open /some/file.txt -v 0755",
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[r"File Descriptor = 16"])
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self.match("platform file read 16 -o 11 -c 13",
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[r"Return = 11\nData = \"frobnicator\""])
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self.match("platform file write 16 -o 11 -d teststring",
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[r"Return = 10"])
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self.match("platform file close 16",
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[r"file 16 closed."])
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self.assertPacketLogContains([
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"vFile:open:2f736f6d652f66696c652e747874,00000202,000001ed",
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"vFile:pread:10,d,b",
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"vFile:pwrite:10,b,teststring",
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"vFile:close:10",
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])
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def test_file_fail(self):
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"""Test mocked failures of remote operations"""
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class Responder(MockGDBServerResponder):
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def vFile(self, packet):
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# use ENOSYS as this constant differs between GDB Remote
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# Protocol and Linux, so we can test the translation
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return "F-1,58"
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self.server.responder = Responder()
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self.match("platform file open /some/file.txt -v 0755",
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[r"error: Function not implemented"],
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error=True)
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self.match("platform file read 16 -o 11 -c 13",
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[r"error: Function not implemented"],
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error=True)
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self.match("platform file write 16 -o 11 -d teststring",
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[r"error: Function not implemented"],
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error=True)
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self.match("platform file close 16",
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[r"error: Function not implemented"],
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error=True)
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self.assertPacketLogContains([
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"vFile:open:2f736f6d652f66696c652e747874,00000202,000001ed",
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"vFile:pread:10,d,b",
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"vFile:pwrite:10,b,teststring",
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"vFile:close:10",
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])
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def test_file_size(self):
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"""Test 'platform get-size'"""
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class Responder(MockGDBServerResponder):
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def vFile(self, packet):
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return "F1000"
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self.server.responder = Responder()
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self.match("platform get-size /some/file.txt",
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[r"File size of /some/file\.txt \(remote\): 4096"])
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self.assertPacketLogContains([
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"vFile:size:2f736f6d652f66696c652e747874",
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])
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def test_file_size_fallback(self):
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"""Test 'platform get-size fallback to vFile:fstat'"""
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class Responder(MockGDBServerResponder):
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def vFile(self, packet):
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if packet.startswith("vFile:open:"):
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return "F5"
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elif packet.startswith("vFile:fstat:"):
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return "F40;" + 28 * "\0" + "\0\0\0\0\0\1\2\3" + 28 * "\0"
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if packet.startswith("vFile:close:"):
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return "F0"
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return ""
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self.server.responder = Responder()
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self.match("platform get-size /some/file.txt",
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[r"File size of /some/file\.txt \(remote\): 66051"])
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self.assertPacketLogContains([
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"vFile:size:2f736f6d652f66696c652e747874",
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"vFile:open:2f736f6d652f66696c652e747874,00000000,00000000",
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"vFile:fstat:5",
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"vFile:close:5",
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])
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self.runCmd("platform disconnect")
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# For a new onnection, we should attempt vFile:size once again.
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server2 = MockGDBServer(self.server_socket_class())
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server2.responder = Responder()
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server2.start()
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self.addTearDownHook(lambda:server2.stop())
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self.runCmd("platform connect " + server2.get_connect_url())
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self.match("platform get-size /other/file.txt",
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[r"File size of /other/file\.txt \(remote\): 66051"])
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self.assertPacketLogContains([
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"vFile:size:2f6f746865722f66696c652e747874",
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"vFile:open:2f6f746865722f66696c652e747874,00000000,00000000",
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"vFile:fstat:5",
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"vFile:close:5",
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],
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log=server2.responder.packetLog)
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@skipIfWindows
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def test_file_permissions(self):
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"""Test 'platform get-permissions'"""
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class Responder(MockGDBServerResponder):
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def vFile(self, packet):
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return "F1a4"
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self.server.responder = Responder()
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self.match("platform get-permissions /some/file.txt",
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[r"File permissions of /some/file\.txt \(remote\): 0o0644"])
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self.assertPacketLogContains([
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"vFile:mode:2f736f6d652f66696c652e747874",
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])
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@skipIfWindows
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def test_file_permissions_fallback(self):
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"""Test 'platform get-permissions' fallback to fstat"""
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class Responder(MockGDBServerResponder):
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def vFile(self, packet):
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if packet.startswith("vFile:open:"):
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return "F5"
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elif packet.startswith("vFile:fstat:"):
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return "F40;" + 8 * "\0" + "\0\0\1\xA4" + 52 * "\0"
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if packet.startswith("vFile:close:"):
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return "F0"
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return ""
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self.server.responder = Responder()
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try:
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self.match("platform get-permissions /some/file.txt",
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[r"File permissions of /some/file\.txt \(remote\): 0o0644"])
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self.assertPacketLogContains([
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"vFile:mode:2f736f6d652f66696c652e747874",
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"vFile:open:2f736f6d652f66696c652e747874,00000000,00000000",
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"vFile:fstat:5",
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"vFile:close:5",
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])
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finally:
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self.dbg.GetSelectedPlatform().DisconnectRemote()
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def test_file_exists(self):
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"""Test 'platform file-exists'"""
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class Responder(MockGDBServerResponder):
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def vFile(self, packet):
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return "F,1"
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self.server.responder = Responder()
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self.match("platform file-exists /some/file.txt",
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[r"File /some/file\.txt \(remote\) exists"])
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self.assertPacketLogContains([
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"vFile:exists:2f736f6d652f66696c652e747874",
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])
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def test_file_exists_not(self):
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"""Test 'platform file-exists' with non-existing file"""
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class Responder(MockGDBServerResponder):
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def vFile(self, packet):
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return "F,0"
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self.server.responder = Responder()
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self.match("platform file-exists /some/file.txt",
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[r"File /some/file\.txt \(remote\) does not exist"])
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self.assertPacketLogContains([
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"vFile:exists:2f736f6d652f66696c652e747874",
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])
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def test_file_exists_fallback(self):
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"""Test 'platform file-exists' fallback to open"""
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class Responder(MockGDBServerResponder):
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def vFile(self, packet):
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if packet.startswith("vFile:open:"):
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return "F5"
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if packet.startswith("vFile:close:"):
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return "F0"
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return ""
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self.server.responder = Responder()
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self.match("platform file-exists /some/file.txt",
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[r"File /some/file\.txt \(remote\) exists"])
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self.assertPacketLogContains([
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"vFile:exists:2f736f6d652f66696c652e747874",
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"vFile:open:2f736f6d652f66696c652e747874,00000000,00000000",
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"vFile:close:5",
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])
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def test_file_exists_not_fallback(self):
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"""Test 'platform file-exists' fallback to open with non-existing file"""
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class Responder(MockGDBServerResponder):
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def vFile(self, packet):
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if packet.startswith("vFile:open:"):
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return "F-1,2"
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return ""
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self.server.responder = Responder()
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self.match("platform file-exists /some/file.txt",
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[r"File /some/file\.txt \(remote\) does not exist"])
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self.assertPacketLogContains([
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"vFile:exists:2f736f6d652f66696c652e747874",
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"vFile:open:2f736f6d652f66696c652e747874,00000000,00000000",
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])
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