发明授权
US08122437B2 Method and apparatus to trace and correlate data trace and instruction trace for out-of-order processors
有权
跟踪和关联无序处理器的数据跟踪和指令跟踪的方法和装置
- 专利标题： Method and apparatus to trace and correlate data trace and instruction trace for out-of-order processors
- 专利标题（中）： 跟踪和关联无序处理器的数据跟踪和指令跟踪的方法和装置
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申请号： US12058874申请日： 2008-03-31
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公开(公告)号： US08122437B2公开(公告)日： 2012-02-21
- 发明人: Zheng Xu , Suraj Bhaskaran , Klas M. Bruce , Jason T. Nearing , Paul B. Rawlins , Matt B. Smittle , Michael D. Snyder
- 申请人： Zheng Xu , Suraj Bhaskaran , Klas M. Bruce , Jason T. Nearing , Paul B. Rawlins , Matt B. Smittle , Michael D. Snyder
- 申请人地址： US TX Austin
- 专利权人： Freescale Semiconductor, Inc.
- 当前专利权人： Freescale Semiconductor, Inc.
- 当前专利权人地址： US TX Austin
- 代理机构： Hamilton & Terrile, LLP
- 代理商 Michael Rocco Cannatti
- 主分类号： G06F9/44
- IPC分类号： G06F9/44 ; G06F11/00
摘要：
In a data processing system, a marked bit is used to identify a data access instruction throughout the pipeline to indicate that the instruction meets user-specified criteria (e.g., a meets a data address range of interest). Based on the marked bit, an in-order program correlation message is generated which indicates when the data access instruction occurs relative to the instruction stream. The marked bit is also used to generate an in-order data trace message. As a result, the trace streams including only data access instructions meeting user-specified criteria may be post-processed and correlated precisely.
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