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#!/usr/bin/python
#----------------------------------------------------------------------
# Be sure to add the python path that points to the LLDB shared library.
# On MacOSX csh, tcsh:
# setenv PYTHONPATH /Developer/Library/PrivateFrameworks/LLDB.framework/Resources/Python
# On MacOSX sh, bash:
# export PYTHONPATH=/Developer/Library/PrivateFrameworks/LLDB.framework/Resources/Python
#----------------------------------------------------------------------
import lldb
import os
import sys
import time
def disassemble_instructions (insts):
for i in range(insts.GetSize()):
print insts.GetInstructionAtIndex(i)
# Create a new debugger instance
debugger = lldb.SBDebugger.Create()
# When we step or continue, don't return from the function until the process
# stops. We do this by setting the async mode to false.
debugger.SetAsync (False)
# Create a target from a file and arch
print "Creating a target for '%s'" % sys.argv[1]
target = debugger.CreateTargetWithFileAndArch (sys.argv[1], lldb.LLDB_ARCH_DEFAULT)
if target.IsValid():
# If the target is valid set a breakpoint at main
main_bp = target.BreakpointCreateByName ("main", sys.argv[1]);
print main_bp
# Launch the process. Since we specified synchronous mode, we won't return
# from this function until we hit the breakpoint at main
process = target.LaunchProcess ([''], [''], "/dev/stdout", 0, False)
# Make sure the launch went ok
if process.IsValid():
# Print some simple process info
state = process.GetState ()
print process
if state == lldb.eStateStopped:
# Get the first thread
thread = process.GetThreadAtIndex (0)
if thread.IsValid():
# Print some simple thread info
print thread
# Get the first frame
frame = thread.GetFrameAtIndex (0)
if frame.IsValid():
# Print some simple frame info
print frame
function = frame.GetFunction()
# See if we have debug info (a function)
if function.IsValid():
# We do have a function, print some info for the function
print function
# Now get all instructions for this function and print them
insts = function.GetInstructions(target)
disassemble_instructions (insts)
else:
# See if we have a symbol in the symbol table for where we stopped
symbol = frame.GetSymbol();
if symbol.IsValid():
# We do have a symbol, print some info for the symbol
print symbol
# Now get all instructions for this symbol and print them
insts = symbol.GetInstructions(target)
disassemble_instructions (insts)
print "Hit the breakpoint at main, continue and wait for program to exit..."
# Now continue to the program exit
process.Continue()
# When we return from the above function we will hopefully be at the
# program exit. Print out some process info
print process
elif state == lldb.eStateExited:
print "Didn't hit the breakpoint at main, program has exited..."
else:
print "Unexpected process state: %s, killing process..." % debugger.StateAsCString (state)
process.Kill()
lldb.SBDebugger.Terminate()
|
