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Add a little spice to the script to allow us to specify a function name to break at and to disassemble. 

Usage: disasm.py [-n name] executable-image
       By default, it breaks at and disassembles the 'main' function.
llvm-svn: 132090
This commit is contained in:
Johnny Chen 2011-05-25 22:29:23 +00:00
parent 92a0adf05f
commit b0b8853a2e
1 changed files with 20 additions and 3 deletions
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23
lldb/examples/python/disasm.py
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@ -17,6 +17,23 @@ def disassemble_instructions (insts):
for i in insts: for i in insts:
print i 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 # Create a new debugger instance
debugger = lldb.SBDebugger.Create() debugger = lldb.SBDebugger.Create()
@ -25,13 +42,13 @@ debugger = lldb.SBDebugger.Create()
debugger.SetAsync (False) debugger.SetAsync (False)
# Create a target from a file and arch # Create a target from a file and arch
print "Creating a target for '%s'" % sys.argv[1] print "Creating a target for '%s'" % exe
target = debugger.CreateTargetWithFileAndArch (sys.argv[1], lldb.LLDB_ARCH_DEFAULT) target = debugger.CreateTargetWithFileAndArch (exe, lldb.LLDB_ARCH_DEFAULT)
if target: if target:
# If the target is valid set a breakpoint at main # If the target is valid set a breakpoint at main
main_bp = target.BreakpointCreateByName ("main", target.GetExecutable().GetFilename()); main_bp = target.BreakpointCreateByName (fname, target.GetExecutable().GetFilename());
print main_bp print main_bp