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Diffstat (limited to 'examples/python/disasm.py')
-rwxr-xr-x | examples/python/disasm.py | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/examples/python/disasm.py b/examples/python/disasm.py new file mode 100755 index 000000000000..732cf106b11d --- /dev/null +++ b/examples/python/disasm.py @@ -0,0 +1,119 @@ +#!/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 + +def disassemble_instructions (insts): + for i in insts: + print i + +def usage(): + print "Usage: disasm.py [-n name] executable-image" + print " By default, it breaks at and disassembles the 'main' function." + sys.exit(0) + +if len(sys.argv) == 2: + fname = 'main' + exe = sys.argv[1] +elif len(sys.argv) == 4: + if sys.argv[1] != '-n': + usage() + else: + fname = sys.argv[2] + exe = sys.argv[3] +else: + usage() + +# 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'" % exe + +target = debugger.CreateTargetWithFileAndArch (exe, lldb.LLDB_ARCH_DEFAULT) + +if target: + # If the target is valid set a breakpoint at main + main_bp = target.BreakpointCreateByName (fname, target.GetExecutable().GetFilename()); + + 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.LaunchSimple (None, None, os.getcwd()) + + # Make sure the launch went ok + if process: + # Print some simple process info + state = process.GetState () + print process + if state == lldb.eStateStopped: + # Get the first thread + thread = process.GetThreadAtIndex (0) + if thread: + # Print some simple thread info + print thread + # Get the first frame + frame = thread.GetFrameAtIndex (0) + if frame: + # Print some simple frame info + print frame + function = frame.GetFunction() + # See if we have debug info (a function) + if function: + # 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: + # 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) + + registerList = frame.GetRegisters() + print "Frame registers (size of register set = %d):" % registerList.GetSize() + for value in registerList: + #print value + print "%s (number of children = %d):" % (value.GetName(), value.GetNumChildren()) + for child in value: + print "Name: ", child.GetName(), " Value: ", child.GetValue() + + print "Hit the breakpoint at main, enter to continue and wait for program to exit or 'Ctrl-D'/'quit' to terminate the program" + next = sys.stdin.readline() + if not next or next.rstrip('\n') == 'quit': + print "Terminating the inferior process..." + process.Kill() + else: + # 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() |