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
|
#!/usr/bin/env python
"""
Run lldb to disassemble all the available functions for an executable image.
"""
import os
import sys
from optparse import OptionParser
def setupSysPath():
"""
Add LLDB.framework/Resources/Python to the search paths for modules.
"""
# Get the directory containing the current script.
scriptPath = sys.path[0]
if not scriptPath.endswith(os.path.join('utils', 'test')):
print "This script expects to reside in lldb's utils/test directory."
sys.exit(-1)
# This is our base name component.
base = os.path.abspath(os.path.join(scriptPath, os.pardir, os.pardir))
# This is for the goodies in the test directory under base.
sys.path.append(os.path.join(base,'test'))
# These are for xcode build directories.
xcode3_build_dir = ['build']
xcode4_build_dir = ['build', 'lldb', 'Build', 'Products']
dbg = ['Debug']
rel = ['Release']
bai = ['BuildAndIntegration']
python_resource_dir = ['LLDB.framework', 'Resources', 'Python']
dbgPath = os.path.join(base, *(xcode3_build_dir + dbg + python_resource_dir))
dbgPath2 = os.path.join(base, *(xcode4_build_dir + dbg + python_resource_dir))
relPath = os.path.join(base, *(xcode3_build_dir + rel + python_resource_dir))
relPath2 = os.path.join(base, *(xcode4_build_dir + rel + python_resource_dir))
baiPath = os.path.join(base, *(xcode3_build_dir + bai + python_resource_dir))
baiPath2 = os.path.join(base, *(xcode4_build_dir + bai + python_resource_dir))
lldbPath = None
if os.path.isfile(os.path.join(dbgPath, 'lldb.py')):
lldbPath = dbgPath
elif os.path.isfile(os.path.join(dbgPath2, 'lldb.py')):
lldbPath = dbgPath2
elif os.path.isfile(os.path.join(relPath, 'lldb.py')):
lldbPath = relPath
elif os.path.isfile(os.path.join(relPath2, 'lldb.py')):
lldbPath = relPath2
elif os.path.isfile(os.path.join(baiPath, 'lldb.py')):
lldbPath = baiPath
elif os.path.isfile(os.path.join(baiPath2, 'lldb.py')):
lldbPath = baiPath2
if not lldbPath:
print 'This script requires lldb.py to be in either ' + dbgPath + ',',
print relPath + ', or ' + baiPath
sys.exit(-1)
# This is to locate the lldb.py module. Insert it right after sys.path[0].
sys.path[1:1] = [lldbPath]
print "sys.path:", sys.path
def run_command(ci, cmd, res):
print "run command:", cmd
ci.HandleCommand(cmd, res)
if res.Succeeded():
print "output:", res.GetOutput()
else:
print "run command failed!"
print "error:", res.GetError()
def do_lldb_disassembly(lldb_commands, lldb_options, exe):
import lldb, lldbutil, atexit
# Create the debugger instance now.
dbg = lldb.SBDebugger.Create()
if not dbg.IsValid():
raise Exception('Invalid debugger instance')
# Register an exit callback.
atexit.register(lambda: lldb.SBDebugger.Terminate())
# We want our debugger to be synchronous.
dbg.SetAsync(False)
# Get the command interpreter from the debugger.
ci = dbg.GetCommandInterpreter()
if not ci:
raise Exception('Could not get the command interpreter')
# And the associated result object.
res = lldb.SBCommandReturnObject()
# See if there any extra command(s) to execute before we issue the file command.
for cmd in lldb_commands:
run_command(ci, cmd, res)
# Now issue the file command.
run_command(ci, 'file %s' % exe, res)
# Send the 'image dump symtab' command.
run_command(ci, 'image dump symtab', res)
def main():
# This is to set up the Python path to include the pexpect-2.4 dir.
# Remember to update this when/if things change.
scriptPath = sys.path[0]
sys.path.append(os.path.join(scriptPath, os.pardir, os.pardir, 'test', 'pexpect-2.4'))
parser = OptionParser(usage="""\
Run lldb to disassemble all the available functions for an executable image.
Usage: %prog [options]
""")
parser.add_option('-C', '--lldb-command',
type='string', action='append', metavar='COMMAND',
default=[], dest='lldb_commands',
help='Command(s) lldb executes after starting up (can be empty)')
parser.add_option('-O', '--lldb-options',
type='string', action='store',
dest='lldb_options',
help="""The options passed to 'lldb' command if specified.""")
parser.add_option('-e', '--executable',
type='string', action='store',
dest='executable',
help="""The executable to do disassembly on.""")
opts, args = parser.parse_args()
lldb_commands = opts.lldb_commands
lldb_options = opts.lldb_options
if not opts.executable:
parser.print_help()
sys.exit(1)
executable = opts.executable
# We have parsed the options.
print "lldb commands:", lldb_commands
print "lldb options:", lldb_options
print "executable:", executable
setupSysPath()
do_lldb_disassembly(lldb_commands, lldb_options, executable)
if __name__ == '__main__':
main()
|
