85 lines
2.3 KiB
Python
85 lines
2.3 KiB
Python
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class BIRDPrinter:
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def __init__(self, val):
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self.val = val
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@classmethod
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def lookup(cls, val):
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if val.type.code != cls.typeCode:
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return None
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if val.type.tag != cls.typeTag:
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return None
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return cls(val)
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class BIRDFValPrinter(BIRDPrinter):
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"Print BIRD\s struct f_val"
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typeCode = gdb.TYPE_CODE_STRUCT
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typeTag = "f_val"
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codemap = {
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"T_INT": "i",
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"T_BOOL": "i",
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"T_PAIR": "i",
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"T_QUAD": "i",
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"T_ENUM_RTS": "i",
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"T_ENUM_BGP_ORIGIN": "i",
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"T_ENUM_SCOPE": "i",
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"T_ENUM_RTC": "i",
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"T_ENUM_RTD": "i",
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"T_ENUM_ROA": "i",
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"T_ENUM_NETTYPE": "i",
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"T_ENUM_RA_PREFERENCE": "i",
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"T_IP": "ip",
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"T_NET": "net",
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"T_STRING": "s",
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"T_PATH_MASK": "path_mask",
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"T_PATH": "ad",
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"T_CLIST": "ad",
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"T_EC": "ec",
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"T_ECLIST": "ad",
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"T_LC": "lc",
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"T_LCLIST": "ad",
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"T_RD": "ec",
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"T_PATH_MASK_ITEM": "pmi",
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"T_SET": "t",
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"T_PREFIX_SET": "ti",
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}
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def to_string(self):
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code = self.val['type']
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if code.type.code != gdb.TYPE_CODE_ENUM or code.type.tag != "f_type":
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raise Exception("Strange 'type' element in f_val")
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if str(code) == "T_VOID":
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return "T_VOID"
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else:
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return "(%(c)s) %(v)s" % { "c": code, "v": self.val['val'][self.codemap[str(code)]] }
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def display_hint(self):
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return "map"
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class BIRDFInstPrinter(BIRDPrinter):
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"Print BIRD's struct f_inst"
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typeCode = gdb.TYPE_CODE_STRUCT
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typeTag = "f_inst"
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def to_string(self):
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code = self.val['fi_code']
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if str(code) == "FI_NOP":
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return str(code) + ": " + str(self.val.cast(gdb.lookup_type("const char [%(siz)d]" % { "siz": self.val.type.sizeof })))
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return str(code) + ": " + str(self.val['i_' + str(code)])
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# def children(self): # children iterator
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def display_hint(self):
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return "map"
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def register_printers(objfile):
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objfile.pretty_printers.append(BIRDFInstPrinter.lookup)
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objfile.pretty_printers.append(BIRDFValPrinter.lookup)
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register_printers(gdb.current_objfile())
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print("BIRD pretty printers loaded OK.")
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