CN103299270A - 运行时指令重组方法及装置 - Google Patents
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Abstract
Description
Claims (19)
- 权 利 要 求1、 一种运行时指令重组方法, 其特征在于, 包括:緩存指令运行环境;获取待调度的机器指令片段; 在所述获取的机器指令片段的最后一条指 令前, 插入第二跳转指令, 所述第二跳转指令指向指令重组平台的入口地址, 生成重组指令片段;将所述緩存的指令运行环境中的地址寄存器的值修改为重 组指令片段的地址;恢复所述指令运行环境; 所述指令运行环境中的地址寄存器的值为修改 后的值。
- 2、 如权利要求 1所述的运行时指令重组方法, 其特征在于, 获取待调度 的机器指令片段包括:从 CPU地址寄存器读取待调度的机器指令地址;从所述机器指令地址读取机器指令片段, 所述机器指令片段最后一条指 令为跳转指令。
- 3、 如权利要求 2所述的运行时指令重组方法, 其特征在于, 从所述机器 指令地址读取机器指令片段包括:检索所述机器指令地址对应的机器指令, 直到发现第一个跳转指令; 所述跳转指令包括 Jump指令和 Call指令。
- 4、 如权利要求 1所述的运行时指令重组方法, 其特征在于, 在緩存指令 运行环境之后, 获取待调度的机器指令片段之前, 还包括:利用所述地址寄存器的值查找地址对应表; 所述地址对应表用于表示待 重组的机器指令片段是否具有已保存的重组过的指令片段;如果找到相应的记录, 将所述地址寄存器的值修改为记录中的值, 恢复 所述指令运行环境; 所述指令运行环境中的地址寄存器的值为修改后的值。
- 5、 如权利要求 4所述的运行时指令重组方法, 其特征在于, 还包括: 利用重组指令片段的地址与所述緩存的指令运行环境中的地址寄存器的 修改前的值在所述地址对应表中建立一条记录。
- 6、 如权利要求 1所述的运行时指令重组方法, 其特征在于, 在插入第二 跳转指令之前, 还包括:解析所述机器指令片段, 利用指令集匹配所述机器指令片段, 得到待处 理的目标机器指令; 按照预定的方式, 修改所述目标机器指令。
- 7、 如权利要求 6所述的运行时指令重组方法, 其特征在于,所述目标指令为存储 /读取指令;按照预定的方式, 修改所述目标机器指令包括: 修改其中的存储和读取 地址为安全存储设备上的地址。
- 8、 如权利要求 6所述的运行时指令重组方法, 其特征在于,所述目标指令为 I/O指令;按照预定的方式, 修改所述目标机器指令包括: 将所述 I/O指令中的输入 指令全部阻止。
- 9、 如权利要求 6所述的运行时指令重组方法, 其特征在于,所述目标指令为网络传输指令;按照预定的方式, 修改所述目标机器指令包括: 检验所述网络传输指令 中的目标地址对应的远端计算设备是否为安全地址; 如果不是, 阻止所述网络 传输指令。
- 10、 一种运行时指令重组方法, 其特征在于, 包括:緩存指令运行环境;获取待调度的机器指令片段;反汇编所述机器指令片段, 得到汇编指令片段;在所述汇编指令片段的最后一条指令前, 插入第二跳转指令, 生成重组 指令片段; 所述第二跳转指令指向指令重组平台的入口地址;汇编所述汇编指令片段, 得到重组后的机器指令片段; 将所述緩存的指 令运行环境中的地址寄存器的值修改为重组指令片段的地址;恢复所述指令运行环境; 所述指令运行环境中的地址寄存器的值为修改 后的值。
- 11、一种计算机可读介质, 其特征在于, 所述可读介质中存储有计算机可 执行的程序代码, 所述程序代码用于执行权利要求 1-10任一所述方法的步骤。
- 12、 一种运行时指令重组装置, 其特征在于, 包括:指令运行环境緩存和恢复单元, 适于緩存和恢复指令运行环境; 指令获取单元, 适于在指令运行环境緩存和恢复单元緩存指令运行环境 后, 获取待调度的机器指令片段;指令重组单元, 适于解析、 修改所述待调度的机器指令片段, 以生成重 组指令片段; 和指令替换单元, 适于将所述緩存的指令运行环境中的地址寄存器的值修 改为重组指令片段的地址。
- 13、 如权利要求 12所述的运行时指令重组装置, 其特征在于, 所述指令 获取单元适于从 CPU地址寄存器读取待调度的机器指令地址,并从所述机器指 令地址读取机器指令片段, 所述机器指令片段最后一条指令为跳转指令。
- 14、 如权利要求 12所述的运行时指令重组装置, 其特征在于, 还包括: 指令检索单元,适于利用所述緩存的指令运行环境中的地址寄存器的值查找地 址对应表;所述地址对应表用于表示待重组的机器指令片段是否具有已保存的 重组过的指令片段;如果找到相应的记录, 指令检索单元适于调用指令替换单元, 将所述地 址寄存器的值修改为记录中的值;如果没有找到相应的记录, 指令检索单元适于利用重组指令片段的地址 与所述緩存的指令运行环境中的地址寄存器的修改前的值在所述地址对应表 中建立一条记录。
- 15、 如权利要求 12所述的运行时指令重组装置, 其特征在于, 所述指令 重组单元包括:指令解析单元, 适于利用指令集匹配所述机器指令片段, 得到待处理的 目标机器指令;指令修改单元, 适于按照预定的方式, 修改所述目标机器指令。
- 16、 如权利要求 15所述的运行时指令重组装置, 其特征在于, 如果所述 目标指令为存储 /读取指令, 所述指令修改单元适于修改其中的存储和读取地 址为安全存储设备上的地址。
- 17、 如权利要求 15所述的运行时指令重组装置, 其特征在于, 如果所述 目标指令为 I/O指令, 所述指令修改单元适于将所述 I/O指令中的输入指令全部 阻止。
- 18、 如权利要求 15所述的运行时指令重组装置, 其特征在于, 如果所述 目标指令为网络传输指令,所述指令修改单元适于检验所述网络传输指令中的 目标地址对应的远端计算设备是否为安全地址; 如果不是, 所述指令修改单元 适于阻止所述网络传输指令。
- 19、 如权利要求 12所述的运行时指令重组装置, 其特征在于, 所述指令 重组单元包括:反汇编单元, 适于在解析、 修改所述待调度的机器指令片段之前, 反汇 编所述待调度的机器指令片段, 生成待调度的汇编指令片段;汇编单元, 适于在解析、 修改所述待调度的机器指令片段之后, 汇编重 组后的汇编指令片段, 得到机器码表示的重组指令片段。
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PCT/CN2011/073495 WO2012145917A1 (zh) | 2011-04-29 | 2011-04-29 | 运行时指令重组方法及装置 |
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US (2) | US8893272B2 (zh) |
JP (1) | JP2014515858A (zh) |
CN (1) | CN103299270B (zh) |
WO (1) | WO2012145917A1 (zh) |
Cited By (3)
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CN103677770B (zh) * | 2012-09-06 | 2016-12-21 | 中天安泰(北京)信息技术有限公司 | 指令重组方法及装置 |
CN106990939A (zh) * | 2015-10-30 | 2017-07-28 | Arm 有限公司 | 修改数据处理单元的行为 |
CN109478144A (zh) * | 2017-07-05 | 2019-03-15 | 上海寒武纪信息科技有限公司 | 一种数据处理装置和方法 |
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US9489300B2 (en) | 2013-06-19 | 2016-11-08 | Sandisk Technologies Llc | Data encoding for non-volatile memory |
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CN103942499B (zh) * | 2014-03-04 | 2017-01-11 | 中天安泰(北京)信息技术有限公司 | 基于移动存储器的数据黑洞处理方法及移动存储器 |
US11635947B2 (en) | 2020-05-22 | 2023-04-25 | Fujitsu Limited | Instruction translation support method and information processing apparatus |
US11556317B2 (en) | 2020-05-22 | 2023-01-17 | Fujitsu Limited | Instruction translation support method and information processing apparatus |
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2011
- 2011-04-29 US US14/113,570 patent/US8893272B2/en not_active Expired - Fee Related
- 2011-04-29 CN CN201180064951.XA patent/CN103299270B/zh not_active Expired - Fee Related
- 2011-04-29 JP JP2014506715A patent/JP2014515858A/ja active Pending
- 2011-04-29 WO PCT/CN2011/073495 patent/WO2012145917A1/zh active Application Filing
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- 2014-09-25 US US14/497,016 patent/US20150012732A1/en not_active Abandoned
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WO2012145917A1 (zh) | 2012-11-01 |
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US20150012732A1 (en) | 2015-01-08 |
CN103299270B (zh) | 2017-03-08 |
US8893272B2 (en) | 2014-11-18 |
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