TestAllowJIT.py
3.22 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
"""
Test that --allow-jit=false does disallow JITting:
"""
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.lldbtest import *
from lldbsuite.test.decorators import *
class TestAllowJIT(TestBase):
mydir = TestBase.compute_mydir(__file__)
# If your test case doesn't stress debug info, the
# set this to true. That way it won't be run once for
# each debug info format.
NO_DEBUG_INFO_TESTCASE = True
def test_allow_jit_expr_command(self):
"""Test the --allow-jit command line flag"""
self.build()
self.main_source_file = lldb.SBFileSpec("main.c")
self.expr_cmd_test()
def test_allow_jit_options(self):
"""Test the SetAllowJIT SBExpressionOption setting"""
self.build()
self.main_source_file = lldb.SBFileSpec("main.c")
self.expr_options_test()
def expr_cmd_test(self):
(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
"Set a breakpoint here", self.main_source_file)
frame = thread.GetFrameAtIndex(0)
# First make sure we can call the function with
interp = self.dbg.GetCommandInterpreter()
self.expect("expr --allow-jit 1 -- call_me(10)",
substrs = ["(int) $", "= 18"])
# Now make sure it fails with the "can't IR interpret message" if allow-jit is false:
self.expect("expr --allow-jit 0 -- call_me(10)",
error=True,
substrs = ["Can't evaluate the expression without a running target"])
def expr_options_test(self):
(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
"Set a breakpoint here", self.main_source_file)
frame = thread.GetFrameAtIndex(0)
# First make sure we can call the function with the default option set.
options = lldb.SBExpressionOptions()
# Check that the default is to allow JIT:
self.assertEqual(options.GetAllowJIT(), True, "Default is true")
# Now use the options:
result = frame.EvaluateExpression("call_me(10)", options)
self.assertSuccess(result.GetError())
self.assertEqual(result.GetValueAsSigned(), 18, "got the right value.")
# Now disallow JIT and make sure it fails:
options.SetAllowJIT(False)
# Check that we got the right value:
self.assertEqual(options.GetAllowJIT(), False, "Got False after setting to False")
# Again use it and ensure we fail:
result = frame.EvaluateExpression("call_me(10)", options)
self.assertTrue(result.GetError().Fail(), "expression failed with no JIT")
self.assertTrue("Can't evaluate the expression without a running target" in result.GetError().GetCString(), "Got right error")
# Finally set the allow JIT value back to true and make sure that works:
options.SetAllowJIT(True)
self.assertEqual(options.GetAllowJIT(), True, "Set back to True correctly")
# And again, make sure this works:
result = frame.EvaluateExpression("call_me(10)", options)
self.assertSuccess(result.GetError())
self.assertEqual(result.GetValueAsSigned(), 18, "got the right value.")