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from intelpt_testcase import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test.decorators import *
class TestTraceDumpInstructions(TraceIntelPTTestCaseBase):
def testErrorMessages(self):
# We first check the output when there are no targets
self.expect(
"thread trace dump instructions",
substrs=[
"error: invalid target, create a target using the 'target create' command"
],
error=True,
)
# We now check the output when there's a non-running target
self.expect(
"target create "
+ os.path.join(self.getSourceDir(), "intelpt-trace", "a.out")
)
self.expect(
"thread trace dump instructions",
substrs=["error: Command requires a current process."],
error=True,
)
# Now we check the output when there's a running target without a trace
self.expect("b main")
self.expect("run")
self.expect(
"thread trace dump instructions",
substrs=["error: Process is not being traced"],
error=True,
)
def testRawDumpInstructionsInJSON(self):
self.expect(
"trace load -v "
+ os.path.join(self.getSourceDir(), "intelpt-trace", "trace.json"),
substrs=["intel-pt"],
)
self.expect(
"thread trace dump instructions --raw --count 5 --forwards --json",
substrs=[
"""[{"id":3,"loadAddress":"0x400511"}""",
"""{"id":7,"loadAddress":"0x400518"}""",
"""{"id":8,"loadAddress":"0x40051f"}""",
"""{"id":9,"loadAddress":"0x400529"}""",
"""{"id":10,"loadAddress":"0x40052d"}""",
],
)
self.expect(
"thread trace dump instructions --raw --count 5 --forwards --pretty-json",
substrs=[
"""[
{
"id": 3,
"loadAddress": "0x400511"
},
{
"id": 7,
"loadAddress": "0x400518"
},
{
"id": 8,
"loadAddress": "0x40051f"
},
{
"id": 9,
"loadAddress": "0x400529"
},
{
"id": 10,
"loadAddress": "0x40052d"
}
]"""
],
)
def testRawDumpInstructionsInJSONToFile(self):
self.expect(
"trace load -v "
+ os.path.join(self.getSourceDir(), "intelpt-trace", "trace.json"),
substrs=["intel-pt"],
)
outfile = os.path.join(self.getBuildDir(), "output.json")
self.expect(
"thread trace dump instructions --raw --count 5 --forwards --pretty-json --file "
+ outfile
)
with open(outfile, "r") as out:
self.assertEqual(
out.read(),
"""[
{
"id": 3,
"loadAddress": "0x400511"
},
{
"id": 7,
"loadAddress": "0x400518"
},
{
"id": 8,
"loadAddress": "0x40051f"
},
{
"id": 9,
"loadAddress": "0x400529"
},
{
"id": 10,
"loadAddress": "0x40052d"
}
]""",
)
def testRawDumpInstructions(self):
self.expect(
"trace load -v "
+ os.path.join(self.getSourceDir(), "intelpt-trace", "trace.json"),
substrs=["intel-pt"],
)
self.expect(
"thread trace dump instructions --raw --count 21 --forwards",
substrs=[
"""thread #1: tid = 3842849
3: 0x0000000000400511
7: 0x0000000000400518
8: 0x000000000040051f
9: 0x0000000000400529
10: 0x000000000040052d
11: 0x0000000000400521
12: 0x0000000000400525
13: 0x0000000000400529
14: 0x000000000040052d
15: 0x0000000000400521
16: 0x0000000000400525
17: 0x0000000000400529
18: 0x000000000040052d
19: 0x0000000000400521
20: 0x0000000000400525
21: 0x0000000000400529
22: 0x000000000040052d
23: 0x0000000000400521
24: 0x0000000000400525
25: 0x0000000000400529
26: 0x000000000040052"""
],
)
# We check if we can pass count and skip
self.expect(
"thread trace dump instructions --count 5 --skip 6 --raw --forwards",
substrs=[
"""thread #1: tid = 3842849
7: 0x0000000000400518
8: 0x000000000040051f
9: 0x0000000000400529
10: 0x000000000040052d
11: 0x0000000000400521"""
],
)
self.expect(
"thread trace dump instructions --count 5 --skip 6 --raw",
substrs=[
"""thread #1: tid = 3842849
21: 0x0000000000400529
20: 0x0000000000400525
19: 0x0000000000400521
18: 0x000000000040052d
17: 0x0000000000400529"""
],
)
# We check if we can pass count and skip and instruction id in hex
self.expect(
"thread trace dump instructions --count 5 --skip 6 --raw --id 0xE",
substrs=[
"""thread #1: tid = 3842849
8: 0x000000000040051f
7: 0x0000000000400518
3: 0x0000000000400511
no more data"""
],
)
# We check if we can pass count and skip and instruction id in decimal
self.expect(
"thread trace dump instructions --count 5 --skip 6 --raw --id 14",
substrs=[
"""thread #1: tid = 3842849
8: 0x000000000040051f
7: 0x0000000000400518
3: 0x0000000000400511
no more data"""
],
)
# We check if we can access the thread by index id
self.expect(
"thread trace dump instructions 1 --raw",
substrs=[
"""thread #1: tid = 3842849
26: 0x000000000040052d"""
],
)
# We check that we get an error when using an invalid thread index id
self.expect(
"thread trace dump instructions 10",
error=True,
substrs=['error: no thread with index: "10"'],
)
def testDumpFullInstructionsWithMultipleThreads(self):
# We load a trace with two threads
self.expect(
"trace load -v "
+ os.path.join(self.getSourceDir(), "intelpt-trace", "trace_2threads.json")
)
# We print the instructions of a specific thread
self.expect(
"thread trace dump instructions 2 --count 2",
substrs=[
"""thread #2: tid = 3842850
a.out`main + 32 at main.cpp:4
26: 0x000000000040052d jle 0x400521 ; <+20> at main.cpp:5
25: 0x0000000000400529 cmpl $0x3, -0x8(%rbp)"""
],
)
# We use custom --count and --skip, saving the command to history for later
self.expect(
"thread trace dump instructions 2 --count 2 --skip 2",
inHistory=True,
substrs=[
"""thread #2: tid = 3842850
a.out`main + 28 at main.cpp:4
25: 0x0000000000400529 cmpl $0x3, -0x8(%rbp)
24: 0x0000000000400525 addl $0x1, -0x8(%rbp)"""
],
)
# We use a repeat command twice and ensure the previous count is used and the
# start position moves with each command.
self.expect(
"",
inHistory=True,
substrs=[
"""thread #2: tid = 3842850
a.out`main + 20 at main.cpp:5
23: 0x0000000000400521 xorl $0x1, -0x4(%rbp)
a.out`main + 32 at main.cpp:4
22: 0x000000000040052d jle 0x400521 ; <+20> at main.cpp:5"""
],
)
self.expect(
"",
inHistory=True,
substrs=[
"""thread #2: tid = 3842850
a.out`main + 28 at main.cpp:4
21: 0x0000000000400529 cmpl $0x3, -0x8(%rbp)
20: 0x0000000000400525 addl $0x1, -0x8(%rbp"""
],
)
def testInvalidBounds(self):
self.expect(
"trace load -v "
+ os.path.join(self.getSourceDir(), "intelpt-trace", "trace.json")
)
# The output should be work when too many instructions are asked
self.expect(
"thread trace dump instructions --count 20 --forwards",
substrs=[
"""thread #1: tid = 3842849
a.out`main + 4 at main.cpp:2
3: 0x0000000000400511 movl $0x0, -0x4(%rbp)
a.out`main + 11 at main.cpp:4
7: 0x0000000000400518 movl $0x0, -0x8(%rbp)
8: 0x000000000040051f jmp 0x400529 ; <+28> at main.cpp:4"""
],
)
# Should print no instructions if the position is out of bounds
self.expect("thread trace dump instructions --skip 23", endstr="no more data\n")
# Should fail with negative bounds
self.expect("thread trace dump instructions --skip -1", error=True)
self.expect("thread trace dump instructions --count -1", error=True)
def testWrongImage(self):
self.expect(
"trace load "
+ os.path.join(self.getSourceDir(), "intelpt-trace", "trace_bad_image.json")
)
self.expect(
"thread trace dump instructions --forwards",
substrs=[
"""thread #1: tid = 3842849
...missing instructions
3: (error) no memory mapped at this address: 0x0000000000400511"""
],
)
def testWrongCPU(self):
self.expect(
"trace load "
+ os.path.join(self.getSourceDir(), "intelpt-trace", "trace_wrong_cpu.json")
)
self.expect(
"thread trace dump instructions --forwards",
substrs=["error: unknown cpu"],
error=True,
)
def testMultiFileTraceWithMissingModuleInJSON(self):
self.expect(
"trace load "
+ os.path.join(
self.getSourceDir(), "intelpt-trace-multi-file", "multi-file-no-ld.json"
)
)
self.expect(
"thread trace dump instructions --count 4 --id 9 --forwards --pretty-json",
substrs=[
"""[
{
"id": 9,
"loadAddress": "0x40054b",
"module": "a.out",
"symbol": "foo()",
"mnemonic": "jmp"
},
{
"id": 10,
"loadAddress": "0x400510",
"module": "a.out",
"symbol": null,
"mnemonic": "pushq"
},
{
"id": 11,
"loadAddress": "0x400516",
"module": "a.out",
"symbol": null,
"mnemonic": "jmpq"
},
{
"id": 12,
"error": "no memory mapped at this address: 0x00007ffff7df1950"
},
{
"id": 16,
"loadAddress": "0x400674",
"module": "a.out",
"symbol": "main",
"mnemonic": "movl",
"source": "/home/wallace/llvm-sand/external/llvm-project/lldb/test/API/commands/trace/intelpt-trace-multi-file/main.cpp",
"line": 10,
"column": 0
}
]"""
],
)
self.expect(
"thread trace dump instructions --count 4 --id 20 --forwards --pretty-json",
substrs=[
"""[
{
"id": 20,
"loadAddress": "0x400677",
"module": "a.out",
"symbol": "main",
"mnemonic": "movl",
"source": "/home/wallace/llvm-sand/external/llvm-project/lldb/test/API/commands/trace/intelpt-trace-multi-file/main.cpp",
"line": 12,
"column": 0
},
{
"id": 21,
"loadAddress": "0x40067a",
"module": "a.out",
"symbol": "main",
"mnemonic": "addl",
"source": "/home/wallace/llvm-sand/external/llvm-project/lldb/test/API/commands/trace/intelpt-trace-multi-file/main.cpp",
"line": 12,
"column": 0
},
{
"id": 22,
"loadAddress": "0x40067f",
"module": "a.out",
"symbol": "main",
"mnemonic": "movl",
"source": "/home/wallace/llvm-sand/external/llvm-project/lldb/test/API/commands/trace/intelpt-trace-multi-file/main.cpp",
"line": 12,
"column": 0
},
{
"id": 26,
"loadAddress": "0x400682",
"module": "a.out",
"symbol": "inline_function()",
"mnemonic": "movl",
"source": "/home/wallace/llvm-sand/external/llvm-project/lldb/test/API/commands/trace/intelpt-trace-multi-file/main.cpp",
"line": 4,
"column": 0
}
]"""
],
)
def testMultiFileTraceWithMissingModule(self):
self.expect(
"trace load "
+ os.path.join(
self.getSourceDir(), "intelpt-trace-multi-file", "multi-file-no-ld.json"
)
)
# This instructions in this test covers the following flow:
#
# - The trace starts with a call to libfoo, which triggers the dynamic
# linker, but the dynamic linker is not included in the JSON file,
# thus the trace reports a set of missing instructions after
# instruction [6].
# - Then, the dump continues in the next synchronization point showing
# a call to an inlined function, which is displayed as [inlined].
# - Finally, a call to libfoo is performed, which invokes libbar inside.
#
# Whenever there's a line or symbol change, including the inline case, a
# line is printed showing the symbol context change.
#
# Finally, the instruction disassembly is included in the dump.
self.expect(
"thread trace dump instructions --count 50 --forwards",
substrs=[
"""thread #1: tid = 815455
a.out`main + 15 at main.cpp:10
3: 0x000000000040066f callq 0x400540 ; symbol stub for: foo()
a.out`symbol stub for: foo()
7: 0x0000000000400540 jmpq *0x200ae2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 40
8: 0x0000000000400546 pushq $0x2
9: 0x000000000040054b jmp 0x400510
a.out`(none)
10: 0x0000000000400510 pushq 0x200af2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 8
11: 0x0000000000400516 jmpq *0x200af4(%rip) ; _GLOBAL_OFFSET_TABLE_ + 16
...missing instructions
12: (error) no memory mapped at this address: 0x00007ffff7df1950
a.out`main + 20 at main.cpp:10
16: 0x0000000000400674 movl %eax, -0xc(%rbp)
a.out`main + 23 at main.cpp:12
20: 0x0000000000400677 movl -0xc(%rbp), %eax
21: 0x000000000040067a addl $0x1, %eax
22: 0x000000000040067f movl %eax, -0xc(%rbp)
a.out`main + 34 [inlined] inline_function() at main.cpp:4
26: 0x0000000000400682 movl $0x0, -0x4(%rbp)
a.out`main + 41 [inlined] inline_function() + 7 at main.cpp:5
27: 0x0000000000400689 movl -0x4(%rbp), %eax
28: 0x000000000040068c addl $0x1, %eax
29: 0x0000000000400691 movl %eax, -0x4(%rbp)
a.out`main + 52 [inlined] inline_function() + 18 at main.cpp:6
30: 0x0000000000400694 movl -0x4(%rbp), %eax
a.out`main + 55 at main.cpp:14
31: 0x0000000000400697 movl -0xc(%rbp), %ecx
32: 0x000000000040069a addl %eax, %ecx
33: 0x000000000040069c movl %ecx, -0xc(%rbp)
a.out`main + 63 at main.cpp:16
37: 0x000000000040069f callq 0x400540 ; symbol stub for: foo()
a.out`symbol stub for: foo()
38: 0x0000000000400540 jmpq *0x200ae2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 40
libfoo.so`foo() at foo.cpp:3
39: 0x00007ffff7bd96e0 pushq %rbp
40: 0x00007ffff7bd96e1 movq %rsp, %rbp
libfoo.so`foo() + 4 at foo.cpp:4
41: 0x00007ffff7bd96e4 subq $0x10, %rsp
42: 0x00007ffff7bd96e8 callq 0x7ffff7bd95d0 ; symbol stub for: bar()
libfoo.so`symbol stub for: bar()
43: 0x00007ffff7bd95d0 jmpq *0x200a4a(%rip) ; _GLOBAL_OFFSET_TABLE_ + 32
libbar.so`bar() at bar.cpp:1
44: 0x00007ffff79d7690 pushq %rbp
45: 0x00007ffff79d7691 movq %rsp, %rbp
libbar.so`bar() + 4 at bar.cpp:2
46: 0x00007ffff79d7694 movl $0x1, -0x4(%rbp)
libbar.so`bar() + 11 at bar.cpp:3
47: 0x00007ffff79d769b movl -0x4(%rbp), %eax
48: 0x00007ffff79d769e addl $0x1, %eax
49: 0x00007ffff79d76a3 movl %eax, -0x4(%rbp)
libbar.so`bar() + 22 at bar.cpp:4
50: 0x00007ffff79d76a6 movl -0x4(%rbp), %eax
51: 0x00007ffff79d76a9 popq %rbp
52: 0x00007ffff79d76aa retq""",
"""libfoo.so`foo() + 13 at foo.cpp:4
53: 0x00007ffff7bd96ed movl %eax, -0x4(%rbp)
libfoo.so`foo() + 16 at foo.cpp:5
54: 0x00007ffff7bd96f0 movl -0x4(%rbp), %eax
55: 0x00007ffff7bd96f3 addl $0x1, %eax
56: 0x00007ffff7bd96f8 movl %eax, -0x4(%rbp)
libfoo.so`foo() + 27 at foo.cpp:6
57: 0x00007ffff7bd96fb movl -0x4(%rbp), %eax
58: 0x00007ffff7bd96fe addq $0x10, %rsp
59: 0x00007ffff7bd9702 popq %rbp
60: 0x00007ffff7bd9703 retq""",
"""a.out`main + 68 at main.cpp:16
61: 0x00000000004006a4 movl -0xc(%rbp), %ecx
62: 0x00000000004006a7 addl %eax, %ecx
63: 0x00000000004006a9 movl %ecx, -0xc(%rbp)
no more data""",
],
)
self.expect(
"thread trace dump instructions --count 50",
substrs=[
"""thread #1: tid = 815455
a.out`main + 73 at main.cpp:16
63: 0x00000000004006a9 movl %ecx, -0xc(%rbp)
62: 0x00000000004006a7 addl %eax, %ecx
61: 0x00000000004006a4 movl -0xc(%rbp), %ecx
libfoo.so`foo() + 35 at foo.cpp:6
60: 0x00007ffff7bd9703 retq""",
"""59: 0x00007ffff7bd9702 popq %rbp
58: 0x00007ffff7bd96fe addq $0x10, %rsp
57: 0x00007ffff7bd96fb movl -0x4(%rbp), %eax
libfoo.so`foo() + 24 at foo.cpp:5
56: 0x00007ffff7bd96f8 movl %eax, -0x4(%rbp)
55: 0x00007ffff7bd96f3 addl $0x1, %eax
54: 0x00007ffff7bd96f0 movl -0x4(%rbp), %eax
libfoo.so`foo() + 13 at foo.cpp:4
53: 0x00007ffff7bd96ed movl %eax, -0x4(%rbp)
libbar.so`bar() + 26 at bar.cpp:4
52: 0x00007ffff79d76aa retq""",
"""51: 0x00007ffff79d76a9 popq %rbp
50: 0x00007ffff79d76a6 movl -0x4(%rbp), %eax
libbar.so`bar() + 19 at bar.cpp:3
49: 0x00007ffff79d76a3 movl %eax, -0x4(%rbp)
48: 0x00007ffff79d769e addl $0x1, %eax
47: 0x00007ffff79d769b movl -0x4(%rbp), %eax
libbar.so`bar() + 4 at bar.cpp:2
46: 0x00007ffff79d7694 movl $0x1, -0x4(%rbp)
libbar.so`bar() + 1 at bar.cpp:1
45: 0x00007ffff79d7691 movq %rsp, %rbp
44: 0x00007ffff79d7690 pushq %rbp
libfoo.so`symbol stub for: bar()
43: 0x00007ffff7bd95d0 jmpq *0x200a4a(%rip) ; _GLOBAL_OFFSET_TABLE_ + 32
libfoo.so`foo() + 8 at foo.cpp:4
42: 0x00007ffff7bd96e8 callq 0x7ffff7bd95d0 ; symbol stub for: bar()
41: 0x00007ffff7bd96e4 subq $0x10, %rsp
libfoo.so`foo() + 1 at foo.cpp:3
40: 0x00007ffff7bd96e1 movq %rsp, %rbp
39: 0x00007ffff7bd96e0 pushq %rbp
a.out`symbol stub for: foo()
38: 0x0000000000400540 jmpq *0x200ae2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 40
a.out`main + 63 at main.cpp:16
37: 0x000000000040069f callq 0x400540 ; symbol stub for: foo()
a.out`main + 60 at main.cpp:14
33: 0x000000000040069c movl %ecx, -0xc(%rbp)
32: 0x000000000040069a addl %eax, %ecx
31: 0x0000000000400697 movl -0xc(%rbp), %ecx
a.out`main + 52 [inlined] inline_function() + 18 at main.cpp:6
30: 0x0000000000400694 movl -0x4(%rbp), %eax
a.out`main + 49 [inlined] inline_function() + 15 at main.cpp:5
29: 0x0000000000400691 movl %eax, -0x4(%rbp)
28: 0x000000000040068c addl $0x1, %eax
27: 0x0000000000400689 movl -0x4(%rbp), %eax
a.out`main + 34 [inlined] inline_function() at main.cpp:4
26: 0x0000000000400682 movl $0x0, -0x4(%rbp)
a.out`main + 31 at main.cpp:12
22: 0x000000000040067f movl %eax, -0xc(%rbp)
21: 0x000000000040067a addl $0x1, %eax
20: 0x0000000000400677 movl -0xc(%rbp), %eax
a.out`main + 20 at main.cpp:10
16: 0x0000000000400674 movl %eax, -0xc(%rbp)
...missing instructions
12: (error) no memory mapped at this address: 0x00007ffff7df1950
a.out`(none)
11: 0x0000000000400516 jmpq *0x200af4(%rip) ; _GLOBAL_OFFSET_TABLE_ + 16
10: 0x0000000000400510 pushq 0x200af2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 8
a.out`symbol stub for: foo() + 11
9: 0x000000000040054b jmp 0x400510
8: 0x0000000000400546 pushq $0x2
7: 0x0000000000400540 jmpq *0x200ae2(%rip) ; _GLOBAL_OFFSET_TABLE_ + 40
a.out`main + 15 at main.cpp:10
3: 0x000000000040066f callq 0x400540 ; symbol stub for: foo()
no more data""",
],
)
self.expect(
"thread trace dump instructions --skip 100 --forwards",
inHistory=True,
substrs=[
"""thread #1: tid = 815455
no more data"""
],
)
self.expect(
"",
substrs=[
"""thread #1: tid = 815455
no more data"""
],
)
self.expect(
"thread trace dump instructions --raw --all --forwards",
substrs=[
"""thread #1: tid = 815455
3: 0x000000000040066f
7: 0x0000000000400540""",
"""11: 0x0000000000400516
...missing instructions
12: (error) no memory mapped at this address: 0x00007ffff7df1950
16: 0x0000000000400674""",
"""61: 0x00000000004006a4
62: 0x00000000004006a7
63: 0x00000000004006a9
no more data""",
],
)
|