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pythonvm

tools

show_file.py

show_file.py 1.99 KB

import dis, marshal, struct, sys, time, types
 
def show_file(fname):
 f = open(fname, "rb")
 magic = f.read(4)
 moddate = f.read(4)
 #modtime = time.asctime(time.localtime(struct.unpack('L', moddate)[0]))
 print "magic %s" % (magic.encode('hex'))
 #print "moddate %s (%s)" % (moddate.encode('hex'), modtime)
 code = marshal.load(f)
 show_code(code)
 
def show_code(code, indent=''):
 old_indent = indent
 print "%s<code>" % indent
 indent += ' '
 print "%s<argcount> %d </argcount>" % (indent, code.co_argcount)
 print "%s<nlocals> %d</nlocals>" % (indent, code.co_nlocals)
 print "%s<stacksize> %d</stacksize>" % (indent, code.co_stacksize)
 print "%s<flags> %04x</flags>" % (indent, code.co_flags)
 show_hex("code", code.co_code, indent=indent)
 print "%s<dis>" % indent
 dis.disassemble(code)
 print "%s</dis>" % indent
 
 print "%s<names> %r</names>" % (indent, code.co_names)
 print "%s<varnames> %r</varnames>" % (indent, code.co_varnames)
 print "%s<freevars> %r</freevars>" % (indent, code.co_freevars)
 print "%s<cellvars> %r</cellvars>" % (indent, code.co_cellvars)
 print "%s<filename> %r</filename>" % (indent, code.co_filename)
 print "%s<name> %r</name>" % (indent, code.co_name)
 print "%s<firstlineno> %d</firstlineno>" % (indent, code.co_firstlineno)
 
 print "%s<consts>" % indent
 for const in code.co_consts:
 if type(const) == types.CodeType:
 show_code(const, indent+' ')
 else:
 print " %s%r" % (indent, const)
 print "%s</consts>" % indent
 
 show_hex("lnotab", code.co_lnotab, indent=indent)
 print "%s</code>" % old_indent
 
def show_hex(label, h, indent):
 h = h.encode('hex')
 if len(h) < 60:
 print "%s<%s> %s</%s>" % (indent, label, h,label)
 else:
 print "%s<%s>" % (indent, label)
 for i in range(0, len(h), 60):
 print "%s %s" % (indent, h[i:i+60])
 print "%s</%s>" % (indent, label)
 
show_file(sys.argv[1])

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hinus 提交于 2018年08月05日 22:00 +08:00 . support if else

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import dis, marshal, struct, sys, time, types
 
def show_file(fname):
 f = open(fname, "rb")
 magic = f.read(4)
 moddate = f.read(4)
 #modtime = time.asctime(time.localtime(struct.unpack('L', moddate)[0]))
 print "magic %s" % (magic.encode('hex'))
 #print "moddate %s (%s)" % (moddate.encode('hex'), modtime)
 code = marshal.load(f)
 show_code(code)
 
def show_code(code, indent=''):
 old_indent = indent
 print "%s<code>" % indent
 indent += ' '
 print "%s<argcount> %d </argcount>" % (indent, code.co_argcount)
 print "%s<nlocals> %d</nlocals>" % (indent, code.co_nlocals)
 print "%s<stacksize> %d</stacksize>" % (indent, code.co_stacksize)
 print "%s<flags> %04x</flags>" % (indent, code.co_flags)
 show_hex("code", code.co_code, indent=indent)
 print "%s<dis>" % indent
 dis.disassemble(code)
 print "%s</dis>" % indent
 
 print "%s<names> %r</names>" % (indent, code.co_names)
 print "%s<varnames> %r</varnames>" % (indent, code.co_varnames)
 print "%s<freevars> %r</freevars>" % (indent, code.co_freevars)
 print "%s<cellvars> %r</cellvars>" % (indent, code.co_cellvars)
 print "%s<filename> %r</filename>" % (indent, code.co_filename)
 print "%s<name> %r</name>" % (indent, code.co_name)
 print "%s<firstlineno> %d</firstlineno>" % (indent, code.co_firstlineno)
 
 print "%s<consts>" % indent
 for const in code.co_consts:
 if type(const) == types.CodeType:
 show_code(const, indent+' ')
 else:
 print " %s%r" % (indent, const)
 print "%s</consts>" % indent
 
 show_hex("lnotab", code.co_lnotab, indent=indent)
 print "%s</code>" % old_indent
 
def show_hex(label, h, indent):
 h = h.encode('hex')
 if len(h) < 60:
 print "%s<%s> %s</%s>" % (indent, label, h,label)
 else:
 print "%s<%s>" % (indent, label)
 for i in range(0, len(h), 60):
 print "%s %s" % (indent, h[i:i+60])
 print "%s</%s>" % (indent, label)
 
show_file(sys.argv[1])