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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
"""
Test setting breakpoints using a scripted resolver
"""
from __future__ import print_function
import os
import time
import re
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
class TestScriptedResolver(TestBase):
mydir = TestBase.compute_mydir(__file__)
NO_DEBUG_INFO_TESTCASE = True
@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24528")
def test_scripted_resolver(self):
"""Use a scripted resolver to set a by symbol name breakpoint"""
self.build()
self.do_test()
@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24528")
def test_search_depths(self):
""" Make sure we are called at the right depths depending on what we return
from __get_depth__"""
self.build()
self.do_test_depths()
@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24528")
def test_command_line(self):
""" Make sure we are called at the right depths depending on what we return
from __get_depth__"""
self.build()
self.do_test_cli()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
def make_target_and_import(self):
target = lldbutil.run_to_breakpoint_make_target(self)
interp = self.dbg.GetCommandInterpreter()
error = lldb.SBError()
script_name = os.path.join(self.getSourceDir(), "resolver.py")
source_name = os.path.join(self.getSourceDir(), "main.c")
command = "command script import " + script_name
result = lldb.SBCommandReturnObject()
interp.HandleCommand(command, result)
self.assertTrue(result.Succeeded(), "com scr imp failed: %s"%(result.GetError()))
return target
def make_extra_args(self):
json_string = '{"symbol":"break_on_me", "test1": "value1"}'
json_stream = lldb.SBStream()
json_stream.Print(json_string)
extra_args = lldb.SBStructuredData()
error = extra_args.SetFromJSON(json_stream)
self.assertTrue(error.Success(), "Error making SBStructuredData: %s"%(error.GetCString()))
return extra_args
def do_test(self):
"""This reads in a python file and sets a breakpoint using it."""
target = self.make_target_and_import()
extra_args = self.make_extra_args()
file_list = lldb.SBFileSpecList()
module_list = lldb.SBFileSpecList()
# Make breakpoints with this resolver using different filters, first ones that will take:
right = []
# one with no file or module spec - this one should fire:
right.append(target.BreakpointCreateFromScript("resolver.Resolver", extra_args, module_list, file_list))
# one with the right source file and no module - should also fire:
file_list.Append(lldb.SBFileSpec("main.c"))
right.append(target.BreakpointCreateFromScript("resolver.Resolver", extra_args, module_list, file_list))
# Make sure the help text shows up in the "break list" output:
self.expect("break list", substrs=["I am a python breakpoint resolver"], msg="Help is listed in break list")
# one with the right source file and right module - should also fire:
module_list.Append(lldb.SBFileSpec("a.out"))
right.append(target.BreakpointCreateFromScript("resolver.Resolver", extra_args, module_list, file_list))
# And one with no source file but the right module:
file_list.Clear()
right.append(target.BreakpointCreateFromScript("resolver.Resolver", extra_args, module_list, file_list))
# Make sure these all got locations:
for i in range (0, len(right)):
self.assertTrue(right[i].GetNumLocations() >= 1, "Breakpoint %d has no locations."%(i))
# Now some ones that won't take:
module_list.Clear()
file_list.Clear()
wrong = []
# one with the wrong module - should not fire:
module_list.Append(lldb.SBFileSpec("noSuchModule"))
wrong.append(target.BreakpointCreateFromScript("resolver.Resolver", extra_args, module_list, file_list))
# one with the wrong file - also should not fire:
file_list.Clear()
module_list.Clear()
file_list.Append(lldb.SBFileSpec("noFileOfThisName.xxx"))
wrong.append(target.BreakpointCreateFromScript("resolver.Resolver", extra_args, module_list, file_list))
# Now make sure the CU level iteration obeys the file filters:
file_list.Clear()
module_list.Clear()
file_list.Append(lldb.SBFileSpec("no_such_file.xxx"))
wrong.append(target.BreakpointCreateFromScript("resolver.ResolverCUDepth", extra_args, module_list, file_list))
# And the Module filters:
file_list.Clear()
module_list.Clear()
module_list.Append(lldb.SBFileSpec("NoSuchModule.dylib"))
wrong.append(target.BreakpointCreateFromScript("resolver.ResolverCUDepth", extra_args, module_list, file_list))
# Now make sure the Function level iteration obeys the file filters:
file_list.Clear()
module_list.Clear()
file_list.Append(lldb.SBFileSpec("no_such_file.xxx"))
wrong.append(target.BreakpointCreateFromScript("resolver.ResolverFuncDepth", extra_args, module_list, file_list))
# And the Module filters:
file_list.Clear()
module_list.Clear()
module_list.Append(lldb.SBFileSpec("NoSuchModule.dylib"))
wrong.append(target.BreakpointCreateFromScript("resolver.ResolverFuncDepth", extra_args, module_list, file_list))
# Make sure these didn't get locations:
for i in range(0, len(wrong)):
self.assertEqual(wrong[i].GetNumLocations(), 0, "Breakpoint %d has locations."%(i))
# Now run to main and ensure we hit the breakpoints we should have:
lldbutil.run_to_breakpoint_do_run(self, target, right[0])
# Test the hit counts:
for i in range(0, len(right)):
self.assertEqual(right[i].GetHitCount(), 1, "Breakpoint %d has the wrong hit count"%(i))
for i in range(0, len(wrong)):
self.assertEqual(wrong[i].GetHitCount(), 0, "Breakpoint %d has the wrong hit count"%(i))
def do_test_depths(self):
"""This test uses a class variable in resolver.Resolver which gets set to 1 if we saw
compile unit and 2 if we only saw modules. If the search depth is module, you get passed just
the modules with no comp_unit. If the depth is comp_unit you get comp_units. So we can use
this to test that our callback gets called at the right depth."""
target = self.make_target_and_import()
extra_args = self.make_extra_args()
file_list = lldb.SBFileSpecList()
module_list = lldb.SBFileSpecList()
module_list.Append(lldb.SBFileSpec("a.out"))
# Make a breakpoint that has no __get_depth__, check that that is converted to eSearchDepthModule:
bkpt = target.BreakpointCreateFromScript("resolver.Resolver", extra_args, module_list, file_list)
self.assertTrue(bkpt.GetNumLocations() > 0, "Resolver got no locations.")
self.expect("script print(resolver.Resolver.got_files)", substrs=["2"], msg="Was only passed modules")
# Make a breakpoint that asks for modules, check that we didn't get any files:
bkpt = target.BreakpointCreateFromScript("resolver.ResolverModuleDepth", extra_args, module_list, file_list)
self.assertTrue(bkpt.GetNumLocations() > 0, "ResolverModuleDepth got no locations.")
self.expect("script print(resolver.Resolver.got_files)", substrs=["2"], msg="Was only passed modules")
# Make a breakpoint that asks for compile units, check that we didn't get any files:
bkpt = target.BreakpointCreateFromScript("resolver.ResolverCUDepth", extra_args, module_list, file_list)
self.assertTrue(bkpt.GetNumLocations() > 0, "ResolverCUDepth got no locations.")
self.expect("script print(resolver.Resolver.got_files)", substrs=["1"], msg="Was passed compile units")
# Make a breakpoint that returns a bad value - we should convert that to "modules" so check that:
bkpt = target.BreakpointCreateFromScript("resolver.ResolverBadDepth", extra_args, module_list, file_list)
self.assertTrue(bkpt.GetNumLocations() > 0, "ResolverBadDepth got no locations.")
self.expect("script print(resolver.Resolver.got_files)", substrs=["2"], msg="Was only passed modules")
# Make a breakpoint that searches at function depth:
bkpt = target.BreakpointCreateFromScript("resolver.ResolverFuncDepth", extra_args, module_list, file_list)
self.assertTrue(bkpt.GetNumLocations() > 0, "ResolverFuncDepth got no locations.")
self.expect("script print(resolver.Resolver.got_files)", substrs=["3"], msg="Was only passed modules")
self.expect("script print(resolver.Resolver.func_list)", substrs=["break_on_me", "main", "test_func"], msg="Saw all the functions")
def do_test_cli(self):
target = self.make_target_and_import()
lldbutil.run_break_set_by_script(self, "resolver.Resolver", extra_options="-k symbol -v break_on_me")
|
