b7d525ad38
Minor fixes needed and now `./bin/lldb-dotest -p TestTrace` passes correctly. - There was an incorrect iteration. - Some error messages changed. - The way repeat commands are handled changed a bit, so I had to create a new --continue arg in "thread trace dump instructions" to handle this correctly. Differential Revision: https://reviews.llvm.org/D122023
346 lines
16 KiB
Python
346 lines
16 KiB
Python
import lldb
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from intelpt_testcase import *
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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 TestTraceDumpInstructions(TraceIntelPTTestCaseBase):
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mydir = TestBase.compute_mydir(__file__)
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def testErrorMessages(self):
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# We first check the output when there are no targets
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self.expect("thread trace dump instructions",
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substrs=["error: invalid target, create a target using the 'target create' command"],
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error=True)
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# We now check the output when there's a non-running target
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self.expect("target create " +
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os.path.join(self.getSourceDir(), "intelpt-trace", "a.out"))
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self.expect("thread trace dump instructions",
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substrs=["error: Command requires a current process."],
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error=True)
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# Now we check the output when there's a running target without a trace
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self.expect("b main")
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self.expect("run")
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self.expect("thread trace dump instructions",
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substrs=["error: Process is not being traced"],
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error=True)
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def testRawDumpInstructions(self):
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self.expect("trace load -v " +
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os.path.join(self.getSourceDir(), "intelpt-trace", "trace.json"),
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substrs=["intel-pt"])
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self.expect("thread trace dump instructions --raw --count 21 --forwards",
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substrs=['''thread #1: tid = 3842849
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[ 0] 0x0000000000400511
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[ 1] 0x0000000000400518
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[ 2] 0x000000000040051f
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[ 3] 0x0000000000400529
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[ 4] 0x000000000040052d
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[ 5] 0x0000000000400521
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[ 6] 0x0000000000400525
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[ 7] 0x0000000000400529
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[ 8] 0x000000000040052d
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[ 9] 0x0000000000400521
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[10] 0x0000000000400525
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[11] 0x0000000000400529
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[12] 0x000000000040052d
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[13] 0x0000000000400521
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[14] 0x0000000000400525
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[15] 0x0000000000400529
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[16] 0x000000000040052d
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[17] 0x0000000000400521
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[18] 0x0000000000400525
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[19] 0x0000000000400529
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[20] 0x000000000040052d'''])
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# We check if we can pass count and skip
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self.expect("thread trace dump instructions --count 5 --skip 6 --raw --forwards",
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substrs=['''thread #1: tid = 3842849
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[ 6] 0x0000000000400525
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[ 7] 0x0000000000400529
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[ 8] 0x000000000040052d
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[ 9] 0x0000000000400521
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[10] 0x0000000000400525'''])
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self.expect("thread trace dump instructions --count 5 --skip 6 --raw",
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substrs=['''thread #1: tid = 3842849
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[ -6] 0x0000000000400525
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[ -7] 0x0000000000400521
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[ -8] 0x000000000040052d
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[ -9] 0x0000000000400529
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[-10] 0x0000000000400525'''])
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# We check if we can access the thread by index id
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self.expect("thread trace dump instructions 1 --raw",
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substrs=['''thread #1: tid = 3842849
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[ 0] 0x000000000040052d'''])
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# We check that we get an error when using an invalid thread index id
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self.expect("thread trace dump instructions 10", error=True,
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substrs=['error: no thread with index: "10"'])
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def testDumpFullInstructionsWithMultipleThreads(self):
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# We load a trace with two threads
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self.expect("trace load -v " +
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os.path.join(self.getSourceDir(), "intelpt-trace", "trace_2threads.json"))
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# We print the instructions of two threads simultaneously
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self.expect("thread trace dump instructions 1 2 --count 2",
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substrs=['''thread #1: tid = 3842849
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a.out`main + 32 at main.cpp:4
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[ 0] 0x000000000040052d jle 0x400521 ; <+20> at main.cpp:5
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[-1] 0x0000000000400529 cmpl $0x3, -0x8(%rbp)
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thread #2: tid = 3842850
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a.out`main + 32 at main.cpp:4
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[ 0] 0x000000000040052d jle 0x400521 ; <+20> at main.cpp:5
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[-1] 0x0000000000400529 cmpl $0x3, -0x8(%rbp)'''])
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# We use custom --count and --skip, saving the command to history for later
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self.expect("thread trace dump instructions 1 2 --count 2 --skip 2", inHistory=True,
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substrs=['''thread #1: tid = 3842849
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a.out`main + 24 at main.cpp:4
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[-2] 0x0000000000400525 addl $0x1, -0x8(%rbp)
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a.out`main + 20 at main.cpp:5
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[-3] 0x0000000000400521 xorl $0x1, -0x4(%rbp)
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thread #2: tid = 3842850
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a.out`main + 24 at main.cpp:4
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[-2] 0x0000000000400525 addl $0x1, -0x8(%rbp)
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a.out`main + 20 at main.cpp:5
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[-3] 0x0000000000400521 xorl $0x1, -0x4(%rbp)'''])
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# We use a repeat command twice and ensure the previous count is used and the
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# start position moves with each command.
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self.expect("", inHistory=True,
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substrs=['''thread #1: tid = 3842849
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a.out`main + 32 at main.cpp:4
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[-4] 0x000000000040052d jle 0x400521 ; <+20> at main.cpp:5
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[-5] 0x0000000000400529 cmpl $0x3, -0x8(%rbp)
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thread #2: tid = 3842850
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a.out`main + 32 at main.cpp:4
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[-4] 0x000000000040052d jle 0x400521 ; <+20> at main.cpp:5
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[-5] 0x0000000000400529 cmpl $0x3, -0x8(%rbp)'''])
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self.expect("", inHistory=True,
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substrs=['''thread #1: tid = 3842849
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a.out`main + 24 at main.cpp:4
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[-6] 0x0000000000400525 addl $0x1, -0x8(%rbp)
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a.out`main + 20 at main.cpp:5
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[-7] 0x0000000000400521 xorl $0x1, -0x4(%rbp)
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thread #2: tid = 3842850
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a.out`main + 24 at main.cpp:4
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[-6] 0x0000000000400525 addl $0x1, -0x8(%rbp)
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a.out`main + 20 at main.cpp:5
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[-7] 0x0000000000400521 xorl $0x1, -0x4(%rbp)'''])
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def testInvalidBounds(self):
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self.expect("trace load -v " +
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os.path.join(self.getSourceDir(), "intelpt-trace", "trace.json"))
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# The output should be work when too many instructions are asked
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self.expect("thread trace dump instructions --count 20 --forwards",
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substrs=['''thread #1: tid = 3842849
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a.out`main + 4 at main.cpp:2
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[ 0] 0x0000000000400511 movl $0x0, -0x4(%rbp)
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a.out`main + 11 at main.cpp:4
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[ 1] 0x0000000000400518 movl $0x0, -0x8(%rbp)
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[ 2] 0x000000000040051f jmp 0x400529 ; <+28> at main.cpp:4'''])
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# Should print no instructions if the position is out of bounds
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self.expect("thread trace dump instructions --skip 23",
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endstr='no more data\n')
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# Should fail with negative bounds
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self.expect("thread trace dump instructions --skip -1", error=True)
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self.expect("thread trace dump instructions --count -1", error=True)
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def testWrongImage(self):
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self.expect("trace load " +
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os.path.join(self.getSourceDir(), "intelpt-trace", "trace_bad_image.json"))
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self.expect("thread trace dump instructions --forwards",
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substrs=['''thread #1: tid = 3842849
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[ 0] 0x0000000000400511 error: no memory mapped at this address
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[ 1] 0x0000000000400518 error: no memory mapped at this address'''])
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def testWrongCPU(self):
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self.expect("trace load " +
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os.path.join(self.getSourceDir(), "intelpt-trace", "trace_wrong_cpu.json"))
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self.expect("thread trace dump instructions --forwards",
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substrs=['''thread #1: tid = 3842849
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[ 0] error: unknown cpu'''])
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def testMultiFileTraceWithMissingModule(self):
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self.expect("trace load " +
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os.path.join(self.getSourceDir(), "intelpt-trace-multi-file", "multi-file-no-ld.json"))
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# This instructions in this test covers the following flow:
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#
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# - The trace starts with a call to libfoo, which triggers the dynamic
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# linker, but the dynamic linker is not included in the JSON file,
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# thus the trace reports a set of missing instructions after
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# instruction [6].
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# - Then, the dump continues in the next synchronization point showing
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# a call to an inlined function, which is displayed as [inlined].
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# - Finally, a call to libfoo is performed, which invokes libbar inside.
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#
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# Whenever there's a line or symbol change, including the inline case, a
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# line is printed showing the symbol context change.
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#
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# Finally, the instruction disassembly is included in the dump.
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self.expect("thread trace dump instructions --count 50 --forwards",
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substrs=['''thread #1: tid = 815455
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a.out`main + 15 at main.cpp:10
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[ 0] 0x000000000040066f callq 0x400540 ; symbol stub for: foo()
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a.out`symbol stub for: foo()
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[ 1] 0x0000000000400540 jmpq *0x200ae2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 40
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[ 2] 0x0000000000400546 pushq $0x2
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[ 3] 0x000000000040054b jmp 0x400510
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a.out`(none)
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[ 4] 0x0000000000400510 pushq 0x200af2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 8
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[ 5] 0x0000000000400516 jmpq *0x200af4(%rip) ; _GLOBAL_OFFSET_TABLE_ + 16
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[ 6] 0x00007ffff7df1950 error: no memory mapped at this address
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...missing instructions
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a.out`main + 20 at main.cpp:10
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[ 7] 0x0000000000400674 movl %eax, -0xc(%rbp)
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a.out`main + 23 at main.cpp:12
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[ 8] 0x0000000000400677 movl -0xc(%rbp), %eax
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[ 9] 0x000000000040067a addl $0x1, %eax
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[10] 0x000000000040067f movl %eax, -0xc(%rbp)
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a.out`main + 34 [inlined] inline_function() at main.cpp:4
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[11] 0x0000000000400682 movl $0x0, -0x4(%rbp)
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a.out`main + 41 [inlined] inline_function() + 7 at main.cpp:5
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[12] 0x0000000000400689 movl -0x4(%rbp), %eax
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[13] 0x000000000040068c addl $0x1, %eax
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[14] 0x0000000000400691 movl %eax, -0x4(%rbp)
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a.out`main + 52 [inlined] inline_function() + 18 at main.cpp:6
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[15] 0x0000000000400694 movl -0x4(%rbp), %eax
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a.out`main + 55 at main.cpp:14
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[16] 0x0000000000400697 movl -0xc(%rbp), %ecx
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[17] 0x000000000040069a addl %eax, %ecx
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[18] 0x000000000040069c movl %ecx, -0xc(%rbp)
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a.out`main + 63 at main.cpp:16
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[19] 0x000000000040069f callq 0x400540 ; symbol stub for: foo()
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a.out`symbol stub for: foo()
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[20] 0x0000000000400540 jmpq *0x200ae2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 40
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libfoo.so`foo() at foo.cpp:3
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[21] 0x00007ffff7bd96e0 pushq %rbp
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[22] 0x00007ffff7bd96e1 movq %rsp, %rbp
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libfoo.so`foo() + 4 at foo.cpp:4
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[23] 0x00007ffff7bd96e4 subq $0x10, %rsp
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[24] 0x00007ffff7bd96e8 callq 0x7ffff7bd95d0 ; symbol stub for: bar()
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libfoo.so`symbol stub for: bar()
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[25] 0x00007ffff7bd95d0 jmpq *0x200a4a(%rip) ; _GLOBAL_OFFSET_TABLE_ + 32
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libbar.so`bar() at bar.cpp:1
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[26] 0x00007ffff79d7690 pushq %rbp
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[27] 0x00007ffff79d7691 movq %rsp, %rbp
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libbar.so`bar() + 4 at bar.cpp:2
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[28] 0x00007ffff79d7694 movl $0x1, -0x4(%rbp)
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libbar.so`bar() + 11 at bar.cpp:3
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[29] 0x00007ffff79d769b movl -0x4(%rbp), %eax
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[30] 0x00007ffff79d769e addl $0x1, %eax
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[31] 0x00007ffff79d76a3 movl %eax, -0x4(%rbp)
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libbar.so`bar() + 22 at bar.cpp:4
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[32] 0x00007ffff79d76a6 movl -0x4(%rbp), %eax
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[33] 0x00007ffff79d76a9 popq %rbp
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[34] 0x00007ffff79d76aa retq''',
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'''libfoo.so`foo() + 13 at foo.cpp:4
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[35] 0x00007ffff7bd96ed movl %eax, -0x4(%rbp)
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libfoo.so`foo() + 16 at foo.cpp:5
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[36] 0x00007ffff7bd96f0 movl -0x4(%rbp), %eax
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[37] 0x00007ffff7bd96f3 addl $0x1, %eax
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[38] 0x00007ffff7bd96f8 movl %eax, -0x4(%rbp)
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libfoo.so`foo() + 27 at foo.cpp:6
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[39] 0x00007ffff7bd96fb movl -0x4(%rbp), %eax
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[40] 0x00007ffff7bd96fe addq $0x10, %rsp
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[41] 0x00007ffff7bd9702 popq %rbp
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[42] 0x00007ffff7bd9703 retq''',
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'''a.out`main + 68 at main.cpp:16
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[43] 0x00000000004006a4 movl -0xc(%rbp), %ecx
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[44] 0x00000000004006a7 addl %eax, %ecx
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[45] 0x00000000004006a9 movl %ecx, -0xc(%rbp)'''])
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self.expect("thread trace dump instructions --count 50",
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substrs=['''thread #1: tid = 815455
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a.out`main + 73 at main.cpp:16
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[ 0] 0x00000000004006a9 movl %ecx, -0xc(%rbp)
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[ -1] 0x00000000004006a7 addl %eax, %ecx
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[ -2] 0x00000000004006a4 movl -0xc(%rbp), %ecx
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libfoo.so`foo() + 35 at foo.cpp:6
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[ -3] 0x00007ffff7bd9703 retq''',
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'''[ -4] 0x00007ffff7bd9702 popq %rbp
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[ -5] 0x00007ffff7bd96fe addq $0x10, %rsp
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[ -6] 0x00007ffff7bd96fb movl -0x4(%rbp), %eax
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libfoo.so`foo() + 24 at foo.cpp:5
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[ -7] 0x00007ffff7bd96f8 movl %eax, -0x4(%rbp)
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[ -8] 0x00007ffff7bd96f3 addl $0x1, %eax
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[ -9] 0x00007ffff7bd96f0 movl -0x4(%rbp), %eax
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libfoo.so`foo() + 13 at foo.cpp:4
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[-10] 0x00007ffff7bd96ed movl %eax, -0x4(%rbp)
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libbar.so`bar() + 26 at bar.cpp:4
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[-11] 0x00007ffff79d76aa retq''',
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'''[-12] 0x00007ffff79d76a9 popq %rbp
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[-13] 0x00007ffff79d76a6 movl -0x4(%rbp), %eax
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libbar.so`bar() + 19 at bar.cpp:3
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[-14] 0x00007ffff79d76a3 movl %eax, -0x4(%rbp)
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[-15] 0x00007ffff79d769e addl $0x1, %eax
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[-16] 0x00007ffff79d769b movl -0x4(%rbp), %eax
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libbar.so`bar() + 4 at bar.cpp:2
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[-17] 0x00007ffff79d7694 movl $0x1, -0x4(%rbp)
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libbar.so`bar() + 1 at bar.cpp:1
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[-18] 0x00007ffff79d7691 movq %rsp, %rbp
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[-19] 0x00007ffff79d7690 pushq %rbp
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libfoo.so`symbol stub for: bar()
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[-20] 0x00007ffff7bd95d0 jmpq *0x200a4a(%rip) ; _GLOBAL_OFFSET_TABLE_ + 32
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libfoo.so`foo() + 8 at foo.cpp:4
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[-21] 0x00007ffff7bd96e8 callq 0x7ffff7bd95d0 ; symbol stub for: bar()
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[-22] 0x00007ffff7bd96e4 subq $0x10, %rsp
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libfoo.so`foo() + 1 at foo.cpp:3
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[-23] 0x00007ffff7bd96e1 movq %rsp, %rbp
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[-24] 0x00007ffff7bd96e0 pushq %rbp
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a.out`symbol stub for: foo()
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[-25] 0x0000000000400540 jmpq *0x200ae2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 40
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a.out`main + 63 at main.cpp:16
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[-26] 0x000000000040069f callq 0x400540 ; symbol stub for: foo()
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a.out`main + 60 at main.cpp:14
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[-27] 0x000000000040069c movl %ecx, -0xc(%rbp)
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[-28] 0x000000000040069a addl %eax, %ecx
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[-29] 0x0000000000400697 movl -0xc(%rbp), %ecx
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a.out`main + 52 [inlined] inline_function() + 18 at main.cpp:6
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[-30] 0x0000000000400694 movl -0x4(%rbp), %eax
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a.out`main + 49 [inlined] inline_function() + 15 at main.cpp:5
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[-31] 0x0000000000400691 movl %eax, -0x4(%rbp)
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[-32] 0x000000000040068c addl $0x1, %eax
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[-33] 0x0000000000400689 movl -0x4(%rbp), %eax
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a.out`main + 34 [inlined] inline_function() at main.cpp:4
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[-34] 0x0000000000400682 movl $0x0, -0x4(%rbp)
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a.out`main + 31 at main.cpp:12
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[-35] 0x000000000040067f movl %eax, -0xc(%rbp)
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[-36] 0x000000000040067a addl $0x1, %eax
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[-37] 0x0000000000400677 movl -0xc(%rbp), %eax
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a.out`main + 20 at main.cpp:10
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[-38] 0x0000000000400674 movl %eax, -0xc(%rbp)
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...missing instructions
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[-39] 0x00007ffff7df1950 error: no memory mapped at this address
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a.out`(none)
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[-40] 0x0000000000400516 jmpq *0x200af4(%rip) ; _GLOBAL_OFFSET_TABLE_ + 16
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[-41] 0x0000000000400510 pushq 0x200af2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 8
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a.out`symbol stub for: foo() + 11
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[-42] 0x000000000040054b jmp 0x400510
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[-43] 0x0000000000400546 pushq $0x2
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[-44] 0x0000000000400540 jmpq *0x200ae2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 40
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a.out`main + 15 at main.cpp:10
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[-45] 0x000000000040066f callq 0x400540 ; symbol stub for: foo()'''])
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self.expect("thread trace dump instructions --skip 100 --forwards", inHistory=True,
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substrs=['''thread #1: tid = 815455
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no more data'''])
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self.expect("", substrs=['''thread #1: tid = 815455
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no more data'''])
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