mirror of
https://github.com/idapython/src
synced 2026-06-08 14:47:00 +00:00
Arnaud Diederen
82 lines
3.1 KiB
Python
82 lines
3.1 KiB
Python
"""
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summary: notify the user when an instruction operand changes
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description:
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Show notifications whenever the user changes
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an instruction's operand, or a data item.
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level: advanced
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"""
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import binascii
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import ida_idp
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import ida_bytes
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import ida_nalt
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import ida_typeinf
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class operand_changed_t(ida_idp.IDB_Hooks):
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def log(self, msg):
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print(">>> %s" % msg)
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def op_type_changed(self, ea, n):
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flags = ida_bytes.get_flags(ea)
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self.log("op_type_changed(ea=0x%08X, n=%d). Flags now: 0x%08X" % (ea, n, flags))
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buf = ida_nalt.opinfo_t()
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opi = ida_bytes.get_opinfo(buf, ea, n, flags)
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if opi:
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if ida_bytes.is_struct(flags):
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try:
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tif = ida_typeinf.tinfo_t(tid=opi.tid)
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self.log("New struct: 0x%08X ordinal: %d (name=%s)" % (
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tif.get_tid(),
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tif.get_ordinal(),
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tif.get_type_name()))
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except:
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self.log("Failed tif")
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elif ida_bytes.is_strlit(flags):
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encidx = ida_nalt.get_str_encoding_idx(opi.strtype)
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if encidx == ida_nalt.STRENC_DEFAULT:
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encidx = ida_nalt.get_default_encoding_idx(ida_nalt.get_strtype_bpu(opi.strtype))
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encname = ida_nalt.get_encoding_name(encidx)
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strlen = ida_bytes.get_max_strlit_length(
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ea,
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opi.strtype,
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ida_bytes.ALOPT_IGNHEADS | ida_bytes.ALOPT_IGNCLT)
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raw = ida_bytes.get_strlit_contents(ea, strlen, opi.strtype) or b""
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self.log("New strlit: 0x%08X, raw hex=%s (encoding=%s)" % (
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opi.strtype,
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binascii.hexlify(raw),
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encname))
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elif ida_bytes.is_off(flags, n):
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self.log("New offset: refinfo={target=0x%08X, base=0x%08X, tdelta=0x%08X, flags=0x%X}" % (
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opi.ri.target,
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opi.ri.base,
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opi.ri.tdelta,
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opi.ri.flags))
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elif ida_bytes.is_enum(flags, n):
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try:
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tif = ida_typeinf.tinfo_t(tid=opi.ec.tid)
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self.log("New enum: 0x%08X ordinal: %d (enum=%s), serial=%d" % (
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opi.ec.tid,
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tif.get_ordinal(),
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tif.get_type_name(),
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opi.ec.serial))
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except:
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self.log("Failed tif")
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pass
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elif ida_bytes.is_stroff(flags, n):
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parts = []
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for i in range(opi.path.len):
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tid = opi.path.ids[i]
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parts.append("0x%08X (name=%s)" % (tid, ida_typeinf.get_tid_name(tid)))
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self.log("New stroff: path=[%s] (len=%d, delta=0x%08X)" % (
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", ".join(parts),
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opi.path.len,
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opi.path.delta))
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elif ida_bytes.is_custom(flags) or ida_bytes.is_custfmt(flags, n):
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self.log("New custom data type") # unimplemented
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else:
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print("Cannot retrieve opinfo_t")
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