437 lines
28 KiB
Python
437 lines
28 KiB
Python
from __future__ import annotations
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from typing import Any
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import ast
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import os
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import re
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import llvmlite.ir as ir
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from lib.core.Handles.HandlesBase import CTypeInfo
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from lib.core.VLogger import get_logger as _vlog
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from lib.constants.config import mode as _config_mode
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class FuncGenMixin:
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def setup_from_symbol_table(self, SymbolTable: Any) -> None:
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self.SymbolTable: Any = SymbolTable
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for name, info in SymbolTable.items():
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if isinstance(info, CTypeInfo):
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# CTypeInfo 对象：struct/union 由 StructGen 处理，此处只处理 dict 格式
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continue
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if not isinstance(info, dict):
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if hasattr(info, 'get'):
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info = dict(info) if hasattr(info, '__iter__') else {}
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else:
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continue
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TypeKind: str = info.get('type', '')
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if TypeKind == 'struct':
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ClassName: str = name
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self.class_methods[ClassName] = []
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self.class_members[ClassName] = []
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members: dict[str, Any] = info.get('members', {})
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if members:
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for MemberName, MemberInfo in members.items():
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if isinstance(MemberInfo, dict):
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MemberType: ir.Type = self._type_str_to_llvm(MemberInfo.get('type', 'int'), MemberInfo.get('IsPtr', False))
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self.class_members[ClassName].append((MemberName, MemberType))
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elif isinstance(MemberInfo, CTypeInfo):
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MemberType: ir.Type = self._ctype_to_llvm(MemberInfo)
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if MemberType is None:
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MemberType = self._type_str_to_llvm(MemberInfo.ToString(), MemberInfo.IsPtr)
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self.class_members[ClassName].append((MemberName, MemberType))
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self._generate_structs()
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self._create_Vtable_globals()
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def register_method(self, ClassName: str, MethodName: str) -> None:
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if ClassName not in self.class_methods:
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self.class_methods[ClassName] = []
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if ClassName not in self.class_members:
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self.class_members[ClassName] = []
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self._generate_structs()
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self._create_Vtable_globals()
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if MethodName not in self.class_methods[ClassName]:
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self.class_methods[ClassName].append(MethodName)
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def _apply_auto_addr(self, func_name: str, args: list[ir.Value]) -> list[ir.Value]:
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"""对函数参数应用自动取地址逻辑（t.CNeedPtr / t.CAutoPtr）。
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在调用前对标记为 auto-addr 的参数自动取地址：
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- 'need' (t.CNeedPtr): 仅对非指针值取地址（alloca + store + get pointer）
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- 'always' (t.CAutoPtr): 无条件取地址
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"""
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modes: list[str | None] | None = self._auto_addr_params.get(func_name)
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if not modes:
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return args
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new_args: list[ir.Value] = list(args)
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for i, mode in enumerate(modes):
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if i >= len(new_args) or mode is None:
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continue
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arg: ir.Value = new_args[i]
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is_ptr: bool = isinstance(arg.type, ir.PointerType)
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if mode == 'always' or (mode == 'need' and not is_ptr):
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# alloca + store + get pointer
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slot: ir.Value = self.builder.alloca(arg.type)
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self.builder.store(arg, slot)
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new_args[i] = slot
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return new_args
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def _adjust_args(self, args: list[ir.Value], func: ir.Function) -> list[ir.Value]:
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adjusted: list[ir.Value] = []
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for i, (arg, param) in enumerate(zip(args, func.args)):
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if arg.type != param.type:
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if isinstance(arg.type, ir.PointerType) and isinstance(param.type, (ir.IdentifiedStructType, ir.LiteralStructType, ir.ArrayType)):
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if arg.type.pointee == param.type or (hasattr(arg.type.pointee, 'name') and hasattr(param.type, 'name') and arg.type.pointee.name == param.type.name):
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# C 语言中数组参数退化为指针，不做 load 而是退化为元素指针
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if isinstance(param.type, ir.ArrayType):
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zero: ir.Constant = ir.Constant(ir.IntType(32), 0)
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elem_ptr: ir.Value = self.builder.gep(arg, [zero, zero], name=f"array_decay_arg_{i}")
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adjusted.append(elem_ptr)
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else:
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adjusted.append(self._load(arg, name=f"Load_arg_{i}"))
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continue
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try:
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if isinstance(arg.type, ir.IntType) and isinstance(param.type, ir.PointerType):
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if isinstance(param.type.pointee, ir.IntType) and param.type.pointee.width == 8 and arg.type.width == 8:
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# 当参数是 i8（字符值）而函数期望 i8*（字符串指针）时
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# 为字符值分配内存，创建 null-terminated 字符串
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tmp: ir.AllocaInstr = self._alloca(ir.ArrayType(ir.IntType(8), 2), name=f"char2str_arg_{i}")
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zero: ir.Constant = ir.Constant(ir.IntType(32), 0)
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char_ptr: ir.Value = self.builder.gep(tmp, [zero, zero], name=f"char2str_ptr_{i}")
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self._store(arg, char_ptr)
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null_ptr: ir.Value = self.builder.gep(tmp, [zero, ir.Constant(ir.IntType(32), 1)], name=f"char2str_null_{i}")
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self._store(ir.Constant(ir.IntType(8), 0), null_ptr)
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adjusted.append(char_ptr)
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else:
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if isinstance(arg.type, ir.PointerType) and isinstance(param.type, ir.IntType):
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# 当参数是指针而函数期望整数时，使用 ptrtoint
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adjusted.append(self.builder.ptrtoint(arg, param.type, name=f"ptrtoint_arg_{i}"))
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else:
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if arg.type.width < 32:
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arg = self.builder.zext(arg, ir.IntType(32), name=f"zext_arg_{i}")
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adjusted.append(self.builder.inttoptr(arg, param.type, name=f"inttoptr_arg_{i}"))
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elif isinstance(arg.type, ir.PointerType) and isinstance(param.type, ir.IntType):
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# 当参数是指针而函数期望整数时，使用 ptrtoint
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adjusted.append(self.builder.ptrtoint(arg, param.type, name=f"ptrtoint_arg_{i}"))
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elif isinstance(arg.type, ir.PointerType) and isinstance(param.type, ir.PointerType):
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if isinstance(arg.type.pointee, ir.PointerType) and isinstance(param.type.pointee, ir.IntType):
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Loaded: ir.Value = self._load(arg, name=f"Load_arg_{i}")
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adjusted.append(Loaded)
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elif isinstance(arg.type.pointee, ir.ArrayType) and isinstance(param.type.pointee, (ir.IntType, ir.FloatType, ir.DoubleType)):
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zero: ir.Constant = ir.Constant(ir.IntType(32), 0)
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elem_ptr: ir.Value = self.builder.gep(arg, [zero, zero], name=f"array_decay_arg_{i}")
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if elem_ptr.type != param.type:
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adjusted.append(self.builder.bitcast(elem_ptr, param.type, name=f"cast_arg_{i}"))
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else:
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adjusted.append(elem_ptr)
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elif isinstance(arg.type.pointee, ir.ArrayType) and isinstance(param.type.pointee, ir.PointerType):
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zero: ir.Constant = ir.Constant(ir.IntType(32), 0)
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elem_ptr: ir.Value = self.builder.gep(arg, [zero, zero], name=f"array_decay_arg_{i}")
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if elem_ptr.type != param.type:
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adjusted.append(self.builder.bitcast(elem_ptr, param.type, name=f"cast_arg_{i}"))
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else:
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adjusted.append(elem_ptr)
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else:
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adjusted.append(self.builder.bitcast(arg, param.type, name=f"cast_arg_{i}"))
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else:
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if isinstance(arg.type, ir.PointerType) and isinstance(param.type, (ir.IdentifiedStructType, ir.LiteralStructType, ir.ArrayType)):
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if arg.type.pointee == param.type or (hasattr(arg.type.pointee, 'name') and hasattr(param.type, 'name') and arg.type.pointee.name == param.type.name):
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adjusted.append(self._load(arg, name=f"Load_arg_{i}"))
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elif isinstance(arg.type.pointee, (ir.IdentifiedStructType, ir.LiteralStructType, ir.ArrayType)):
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tmp: ir.AllocaInstr = self._alloca(param.type, name=f"temp_arg_{i}")
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Loaded: ir.Value = self.builder.bitcast(arg, ir.PointerType(param.type), name=f"cast_arg_{i}")
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Loaded_val: ir.Value = self._load(Loaded, name=f"Load_arg_{i}")
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self._store(Loaded_val, tmp)
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adjusted.append(self._load(tmp, name=f"reLoad_arg_{i}"))
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else:
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tmp: ir.AllocaInstr = self._alloca(param.type, name=f"temp_arg_{i}")
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cast_ptr: ir.Value = self.builder.bitcast(arg, ir.PointerType(param.type), name=f"cast_arg_{i}")
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Loaded_val: ir.Value = self._load(cast_ptr, name=f"Load_arg_{i}")
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self._store(Loaded_val, tmp)
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adjusted.append(self._load(tmp, name=f"reLoad_arg_{i}"))
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elif isinstance(arg.type, ir.PointerType) and arg.type.pointee == param.type:
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adjusted.append(self._load(arg, name=f"Load_arg_{i}"))
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elif isinstance(param.type, ir.PointerType) and param.type.pointee == arg.type:
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tmp: ir.AllocaInstr = self._alloca(arg.type, name=f"temp_arg_{i}")
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self._store(arg, tmp)
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adjusted.append(tmp)
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elif isinstance(arg.type, ir.IntType) and isinstance(param.type, ir.IntType):
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if arg.type.width < param.type.width:
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# 整数扩展：使用 sext（符号扩展）以正确处理负数
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adjusted.append(self.builder.sext(arg, param.type, name=f"sext_arg_{i}"))
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else:
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adjusted.append(self.builder.trunc(arg, param.type, name=f"trunc_arg_{i}"))
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elif isinstance(arg.type, (ir.FloatType, ir.DoubleType)) and isinstance(param.type, (ir.FloatType, ir.DoubleType)):
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if isinstance(arg.type, ir.DoubleType) and isinstance(param.type, ir.FloatType):
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adjusted.append(self.builder.fptrunc(arg, param.type, name=f"fptrunc_arg_{i}"))
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elif isinstance(arg.type, ir.FloatType) and isinstance(param.type, ir.DoubleType):
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adjusted.append(self.builder.fpext(arg, param.type, name=f"fpext_arg_{i}"))
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else:
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adjusted.append(arg)
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elif isinstance(arg.type, (ir.FloatType, ir.DoubleType)) and isinstance(param.type, ir.IntType):
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adjusted.append(self.builder.fptosi(arg, param.type, name=f"fptosi_arg_{i}"))
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elif isinstance(arg.type, ir.IntType) and isinstance(param.type, (ir.FloatType, ir.DoubleType)):
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adjusted.append(self.builder.sitofp(arg, param.type, name=f"sitofp_arg_{i}"))
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elif isinstance(arg.type, ir.IntType) and isinstance(param.type, ir.PointerType):
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# 整数转指针：inttoptr
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if arg.type.width < 64:
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i64_val: ir.Value = self.builder.sext(arg, ir.IntType(64), name=f"sext_arg_{i}")
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adjusted.append(self.builder.inttoptr(i64_val, param.type, name=f"inttoptr_arg_{i}"))
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else:
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adjusted.append(self.builder.inttoptr(arg, param.type, name=f"inttoptr_arg_{i}"))
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elif isinstance(arg.type, ir.PointerType) and isinstance(param.type, ir.IntType):
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# 指针转整数：ptrtoint
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i64_val: ir.Value = self.builder.ptrtoint(arg, ir.IntType(64), name=f"ptrtoint_arg_{i}")
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if i64_val.type.width > param.type.width:
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adjusted.append(self.builder.trunc(i64_val, param.type, name=f"trunc_arg_{i}"))
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elif i64_val.type.width < param.type.width:
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adjusted.append(self.builder.sext(i64_val, param.type, name=f"sext_arg_{i}"))
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else:
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adjusted.append(i64_val)
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else:
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adjusted.append(self.builder.bitcast(arg, param.type, name=f"cast_arg_{i}"))
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except Exception: # 参数类型调整失败时使用简化回退逻辑
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if isinstance(arg.type, ir.PointerType) and isinstance(param.type, (ir.IdentifiedStructType, ir.LiteralStructType, ir.ArrayType)):
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if arg.type.pointee == param.type or (hasattr(arg.type.pointee, 'name') and hasattr(param.type, 'name') and arg.type.pointee.name == param.type.name):
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adjusted.append(self._load(arg, name=f"Load_arg_{i}"))
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else:
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adjusted.append(self.builder.bitcast(arg, param.type, name=f"cast_arg_{i}"))
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elif isinstance(arg.type, ir.PointerType) and arg.type.pointee == param.type:
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adjusted.append(self._load(arg, name=f"Load_arg_{i}"))
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elif isinstance(param.type, ir.PointerType) and param.type.pointee == arg.type:
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tmp: ir.AllocaInstr = self._alloca(arg.type, name=f"temp_arg_{i}")
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self._store(arg, tmp)
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adjusted.append(tmp)
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else:
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adjusted.append(arg)
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else:
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adjusted.append(arg)
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while len(adjusted) < len(func.args):
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missing_idx: int = len(adjusted)
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param: ir.Argument = func.args[missing_idx]
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param_type: ir.Type = param.type if hasattr(param, 'type') else param
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if isinstance(param_type, ir.PointerType):
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adjusted.append(ir.Constant(param_type, None))
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elif isinstance(param_type, ir.IntType):
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adjusted.append(ir.Constant(param_type, 0))
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elif isinstance(param_type, (ir.FloatType, ir.DoubleType)):
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adjusted.append(ir.Constant(param_type, 0.0))
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else:
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adjusted.append(ir.Constant(ir.IntType(32), 0))
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if func.type.pointee.var_arg:
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for i in range(len(func.args), len(args)):
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arg: ir.Value = args[i]
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adjusted.append(arg)
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return adjusted
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def _get_member_offset(self, field_name: str, ClassName: str | None = None) -> int | None:
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has_vtable: bool = ClassName and (ClassName in self.class_vtable or ClassName in self._cross_module_vtable_classes)
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base: int = 1 if has_vtable else 0
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if ClassName and ClassName in self.structs:
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struct_type: ir.IdentifiedStructType = self.structs[ClassName]
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if isinstance(struct_type, ir.IdentifiedStructType) and struct_type.elements is not None and len(struct_type.elements) > 0:
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if ClassName in self.class_members:
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expected_fields: int = len(self.class_members[ClassName])
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actual_elements: int = len(struct_type.elements)
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if base > 0 and actual_elements == expected_fields:
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base = 0
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if ClassName and ClassName in self.class_members:
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for i, (name, _) in enumerate(self.class_members[ClassName]):
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if name == field_name:
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return base + i
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short_name: str | None = ClassName.split('.')[-1] if ClassName and '.' in ClassName else None
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if short_name and short_name in self.class_members:
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for i, (name, _) in enumerate(self.class_members[short_name]):
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if name == field_name:
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return base + i
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if ClassName and field_name:
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if ClassName not in self.class_members or field_name not in [n for n, _ in self.class_members.get(ClassName, [])]:
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if hasattr(self, '_Trans') and self._Trans and hasattr(self._Trans, 'ImportHandler'):
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sha1_map: dict[str, str] = getattr(self, 'ModuleSha1Map', {})
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for mod_name, mod_sha1 in sha1_map.items():
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stub_name: str = f"{mod_sha1}.stub.ll"
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self._Trans.ImportHandler._TryLoadClassMembersFromPyi(ClassName, stub_name, self)
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if ClassName in self.class_members and len(self.class_members[ClassName]) > 0:
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for i, (name, _) in enumerate(self.class_members[ClassName]):
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if name == field_name:
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return base + i
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break
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if short_name:
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for mod_name, mod_sha1 in sha1_map.items():
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stub_name: str = f"{mod_sha1}.stub.ll"
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self._Trans.ImportHandler._TryLoadClassMembersFromPyi(short_name, stub_name, self)
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if short_name in self.class_members and len(self.class_members[short_name]) > 0:
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for i, (name, _) in enumerate(self.class_members[short_name]):
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if name == field_name:
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return base + i
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break
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if ClassName and field_name:
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for cn_key in self.class_members:
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if cn_key == ClassName or cn_key.endswith(f'.{ClassName}') or (short_name and (cn_key == short_name or cn_key.endswith(f'.{short_name}'))):
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for i, (name, _) in enumerate(self.class_members[cn_key]):
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if name == field_name:
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return base + i
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if ClassName and ClassName in self.structs:
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struct_type: ir.IdentifiedStructType = self.structs[ClassName]
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if isinstance(struct_type, ir.IdentifiedStructType) and struct_type.elements is not None and len(struct_type.elements) > 0:
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for cn_key, members in self.class_members.items():
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if cn_key == short_name or (short_name and cn_key.endswith(f'.{short_name}')):
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for i, (name, _) in enumerate(members):
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if name == field_name and i < len(struct_type.elements):
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return i
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break
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else:
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if short_name:
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for cn_key, members in self.class_members.items():
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sn: str = cn_key.split('.')[-1] if '.' in cn_key else cn_key
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if sn == short_name:
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for i, (name, _) in enumerate(members):
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if name == field_name and i < len(struct_type.elements):
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return i
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break
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if ClassName and field_name and ClassName not in self.class_members:
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if hasattr(self, '_Trans') and self._Trans and hasattr(self._Trans, 'ImportHandler'):
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for temp_dir_candidate in [getattr(self, '_temp_dir', None)]:
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if temp_dir_candidate and os.path.isdir(temp_dir_candidate):
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for pyi_file in os.listdir(temp_dir_candidate):
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if pyi_file.endswith('.pyi'):
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stub_name: str = pyi_file.replace('.pyi', '.stub.ll')
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short_cn: str = short_name if short_name else ClassName
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self._Trans.ImportHandler._TryLoadClassMembersFromPyi(short_cn, stub_name, self)
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if short_cn in self.class_members and len(self.class_members[short_cn]) > 0:
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for i, (name, _) in enumerate(self.class_members[short_cn]):
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if name == field_name:
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return base + i
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break
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if ClassName and ClassName in self.structs and (ClassName not in self.class_members or len(self.class_members.get(ClassName, [])) == 0):
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struct_type: ir.IdentifiedStructType = self.structs[ClassName]
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if isinstance(struct_type, ir.IdentifiedStructType) and struct_type.elements is not None:
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if hasattr(self, '_Trans') and self._Trans and hasattr(self._Trans, 'ClassHandler'):
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class_handler: Any = self._Trans.ClassHandler
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if hasattr(self, '_current_tree') and self._current_tree:
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for node in ast.iter_child_nodes(self._current_tree):
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if isinstance(node, ast.ClassDef) and (node.name == ClassName or node.name == short_name):
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if node.name not in self.class_members:
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self.class_members[node.name] = []
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if len(self.class_members[node.name]) == 0:
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class_handler._PreRegisterClassMembers(node, self)
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if ClassName in self.class_members:
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for i, (name, _) in enumerate(self.class_members[ClassName]):
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if name == field_name:
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return base + i
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if short_name and short_name in self.class_members:
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for i, (name, _) in enumerate(self.class_members[short_name]):
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if name == field_name:
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return base + i
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break
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return None
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def _resolve_class_for_var(self, var_name: str) -> str | None:
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for ClassName in self.class_methods:
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if var_name == ClassName or var_name.startswith(f"__with_{ClassName}_"):
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return ClassName
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if var_name in self.variables:
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var: ir.Value = self.variables[var_name]
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if isinstance(var.type, ir.PointerType):
|
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for ClassName, struct_type in self.structs.items():
|
||
if var.type.pointee == struct_type:
|
||
return ClassName
|
||
if isinstance(var.type.pointee, ir.PointerType) and var.type.pointee.pointee == struct_type:
|
||
return ClassName
|
||
return None
|
||
|
||
def _GetOrCreateFunc(self, FuncName: str, ArgTypes: list[ir.Type]) -> ir.Function:
|
||
mangled_name: str = self._mangle_func_name(FuncName)
|
||
if mangled_name in self.functions:
|
||
return self.functions[mangled_name]
|
||
FuncType: ir.FunctionType = self._InferFuncTypeForCall(FuncName, ArgTypes)
|
||
try:
|
||
func: ir.Function = ir.Function(self.module, FuncType, name=mangled_name)
|
||
except Exception: # 函数名冲突时添加前缀重试
|
||
func = ir.Function(self.module, FuncType, name=f"_{mangled_name}")
|
||
self.functions[mangled_name] = func
|
||
return func
|
||
|
||
def _resolve_method_class(self, MethodName: str) -> str | None:
|
||
for ClassName, methods in self.class_methods.items():
|
||
if MethodName in methods:
|
||
return ClassName
|
||
full_name: str = f"{ClassName}.{MethodName}"
|
||
if full_name in methods:
|
||
return ClassName
|
||
return None
|
||
|
||
def _infer_return_type(self, FuncName: str) -> ir.Type:
|
||
if FuncName in self.functions:
|
||
return self.functions[FuncName].type.pointee.return_type
|
||
# 也尝试混淆后的名称
|
||
mangled: str = self._mangle_func_name(FuncName)
|
||
if mangled != FuncName and mangled in self.functions:
|
||
return self.functions[mangled].type.pointee.return_type
|
||
if FuncName in self.known_return_types:
|
||
return self.known_return_types[FuncName]
|
||
if mangled != FuncName and mangled in self.known_return_types:
|
||
return self.known_return_types[mangled]
|
||
for ClassName, methods in self.class_methods.items():
|
||
for method in methods:
|
||
if FuncName == method:
|
||
return ir.VoidType()
|
||
if hasattr(self, '_import_handler_ref') and self._import_handler_ref:
|
||
try:
|
||
# 先用原始名称查找，再用混淆名称查找
|
||
stub_func_type: Any = self._import_handler_ref._LookupStubFuncType(FuncName, self)
|
||
if stub_func_type is None and mangled != FuncName:
|
||
stub_func_type = self._import_handler_ref._LookupStubFuncType(mangled, self)
|
||
if stub_func_type and hasattr(stub_func_type, 'return_type'):
|
||
return stub_func_type.return_type
|
||
except Exception as _e:
|
||
if _config_mode == "strict":
|
||
raise
|
||
_vlog().warning(f"查找桩函数返回类型失败: {_e}", "Exception")
|
||
return ir.IntType(32)
|
||
|
||
def _InferFuncTypeForCall(self, FuncName: str, ArgTypes: list[ir.Type]) -> ir.FunctionType:
|
||
return_type: ir.Type = self._infer_return_type(FuncName)
|
||
if not ArgTypes:
|
||
for ClassName, methods in self.class_methods.items():
|
||
if FuncName in methods:
|
||
if ClassName in self.structs:
|
||
ArgTypes = [ir.PointerType(self.structs[ClassName])]
|
||
else:
|
||
ArgTypes = [ir.PointerType(ir.LiteralStructType([ir.PointerType(ir.IntType(8)), ir.IntType(32)]))]
|
||
break
|
||
else:
|
||
ArgTypes = [ir.IntType(32)]
|
||
return ir.FunctionType(return_type, ArgTypes)
|
||
|
||
def _get_or_declare_func(self, name: str, func_type: ir.FunctionType) -> ir.Function:
|
||
for fname, fobj in self.functions.items():
|
||
if fname == name:
|
||
return fobj
|
||
if re.match(r'^[0-9a-f]{16,}\.' + re.escape(name) + r'$', fname):
|
||
return fobj
|
||
func_decl: ir.Function = ir.Function(self.module, func_type, name=name)
|
||
self.functions[name] = func_decl
|
||
return func_decl
|
||
|
||
def get_or_declare_c_func(self, name: str, fallback_type: ir.FunctionType | None = None) -> ir.Function | None:
|
||
if name in self.functions:
|
||
return self.functions[name]
|
||
for fname, fobj in self.functions.items():
|
||
if re.match(r'^[0-9a-f]{16,}\.' + re.escape(name) + r'$', fname):
|
||
return fobj
|
||
stub_func_type: ir.FunctionType | None = None
|
||
if hasattr(self, '_import_handler_ref') and self._import_handler_ref:
|
||
try:
|
||
stub_func_type = self._import_handler_ref._LookupStubFuncType(name, self)
|
||
except Exception as _e:
|
||
if _config_mode == "strict":
|
||
raise
|
||
_vlog().warning(f"查找桩函数类型失败: {_e}", "Exception")
|
||
if stub_func_type:
|
||
func_decl: ir.Function = ir.Function(self.module, stub_func_type, name=name)
|
||
self.functions[name] = func_decl
|
||
return func_decl
|
||
if fallback_type is not None:
|
||
func_decl: ir.Function = ir.Function(self.module, fallback_type, name=name)
|
||
self.functions[name] = func_decl
|
||
return func_decl
|
||
return None |