0b69756110
This implements the interactive trace start and stop methods. This diff ended up being much larger than I anticipated because, by doing it, I found that I had implemented in the beginning many things in a non optimal way. In any case, the code is much better now. There's a lot of boilerplate code due to the gdb-remote protocol, but the main changes are: - New tracing packets: jLLDBTraceStop, jLLDBTraceStart, jLLDBTraceGetBinaryData. The gdb-remote packet definitions are quite comprehensive. - Implementation of the "process trace start|stop" and "thread trace start|stop" commands. - Implementaiton of an API in Trace.h to interact with live traces. - Created an IntelPTDecoder for live threads, that use the debugger's stop id as checkpoint for its internal cache. - Added a functionality to stop the process in case "process tracing" is enabled and a new thread can't traced. - Added tests I have some ideas to unify the code paths for post mortem and live threads, but I'll do that in another diff. Differential Revision: https://reviews.llvm.org/D91679
35 lines
1008 B
Python
35 lines
1008 B
Python
import lldb
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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from lldbsuite.test.decorators import *
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class TestTraceLoad(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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NO_DEBUG_INFO_TESTCASE = True
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def setUp(self):
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TestBase.setUp(self)
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if 'intel-pt' not in configuration.enabled_plugins:
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self.skipTest("The intel-pt test plugin is not enabled")
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def testSchema(self):
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self.expect("trace schema intel-pt", substrs=["trace", "triple", "threads", "traceFile"])
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def testInvalidPluginSchema(self):
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self.expect("trace schema invalid-plugin", error=True,
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substrs=['error: no trace plug-in matches the specified type: "invalid-plugin"'])
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def testAllSchemas(self):
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self.expect("trace schema all", substrs=['''{
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"trace": {
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"type": "intel-pt",
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"cpuInfo": {
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"vendor": "intel" | "unknown",
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"family": integer,
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"model": integer,
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"stepping": integer
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}
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},'''])
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