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21. 发明授权

US07131115B2 Unwinding instrumented program code 失效
公开(公告)号：US07131115B2
公开(公告)日：2006-10-31
申请号：US10105765
申请日：2002-03-25
申请人： Robert Hundt , Vinodha Ramasamy
发明人： Robert Hundt , Vinodha Ramasamy
IPC分类号： G06F9/44
CPC分类号： G06F9/4486
摘要： Method and apparatus for handling call stack unwinding when execution of an instrumented program is stopped in a first function of the instrumented program. When unwinding is initiated and a call to a second function of unwind software is made, the call to the second function is intercepted. The second function returns a reference to unwind information associated with the first function of the instrumented program. The unwind information includes references to locations of selected instructions in the function. If the first function of the instrumented program is instrumented with instrumentation code, then updated unwind information is created. The updated unwind information includes updated references to the locations of the selected instructions in the first function as offset by the instrumentation code. A reference to the updated unwind information is returned.

22. 发明授权

US06993750B2 Dynamic registration of dynamically generated code and corresponding unwind information 有权
公开(公告)号：US06993750B2
公开(公告)日：2006-01-31
申请号：US10016955
申请日：2001-12-13
申请人： Robert Hundt , Muralitharan Vijayasundaram , Cary A. Coutant , Kannan Narasimhan
发明人： Robert Hundt , Muralitharan Vijayasundaram , Cary A. Coutant , Kannan Narasimhan
IPC分类号： G06F9/44
CPC分类号： G06F9/3861
摘要： A method and system for enabling the registration of dynamically generated code and corresponding unwind information. In one embodiment, the present invention creates a module which includes data related to dynamically generated code and corresponding unwind information. The present embodiment also provides an application program interface which allows the data to be registered such that dynamic registration of the dynamically generated code and the corresponding unwind information is enabled.

23. 发明授权

US06817014B2 Analysis of executable program code using compiler-generated function entry points and endpoints with other sources of function entry points and endpoints 有权
标题翻译：使用编译器生成的函数入口点和具有其他功能入口点和端点源的端点来分析可执行程序代码
公开(公告)号：US06817014B2
公开(公告)日：2004-11-09
申请号：US09833249
申请日：2001-04-11
申请人： Robert Hundt , Vinodha Ramasamy , Jose German Rivera , Umesh Krishnaswamy
发明人： Robert Hundt , Vinodha Ramasamy , Jose German Rivera , Umesh Krishnaswamy
IPC分类号： G06F945
CPC分类号： G06F11/3612
摘要： Method and apparatus for analysis of executable program code. The executable program includes segments of code that correspond to callable functions in the source code from which the executable code was generated. Compiler-generated checkpoint descriptors are included in the executable and include pairs of entry points and endpoints. Each pair of entry points and endpoints is associated with a callable function in the source code. The pairs of entry points and endpoints are read from the executable program code and used to generate analysis data for the associated functions. In other embodiments, pairs of entry points and endpoints are additionally assembled from dynamic load modules and symbol tables.
摘要翻译：用于分析可执行程序代码的方法和装置。可执行程序包括对应于生成可执行代码的源代码中的可调用函数的代码段。编译器生成的检查点描述符包含在可执行文件中，并包括入口点和端点对。每对入口点和端点与源代码中的可调用函数相关联。从可执行程序代码中读取入口点和端点对，并用于生成相关函数的分析数据。在其他实施例中，还从动态加载模块和符号表中组合入口点和端点对。

24. 发明授权

US09135082B1 Techniques and systems for data race detection 有权
标题翻译：用于数据竞争检测的技术和系统
公开(公告)号：US09135082B1
公开(公告)日：2015-09-15
申请号：US13112945
申请日：2011-05-20
申请人： Tianwei Sheng , Neil A. Vachharajani , Stephane Eranian , Robert Hundt
发明人： Tianwei Sheng , Neil A. Vachharajani , Stephane Eranian , Robert Hundt
IPC分类号： G06F9/44 , G06F9/52 , G06F11/36 , G06F9/45
CPC分类号： G06F9/524 , G06F8/458 , G06F11/28 , G06F11/36 , G06F11/3632
摘要： A race detection mechanism can include running threads of a multithreaded program on a processor, the program being configured to produce locksets each of which indicate a set of one or more locks that a thread holds at a point in time. The mechanism can cause a performance monitoring unit included in the processor to monitor memory accesses caused by the threads and to produce samples based on the memory accesses, the samples being indicative of an accessed memory location. The mechanism can detect an existence of a data race condition based on the samples and the locksets. Detecting can include identifying a protected access to a memory location by a first thread of the threads and identifying an unprotected access to the memory location by a second thread of the threads. The process selectively outputs an indication of the data race condition.
摘要翻译：竞争检测机制可以包括在处理器上运行多线程程序的线程，该程序被配置为产生锁定器，每个锁定器指示线程在某个时间点保持的一个或多个锁的集合。该机制可以使处理器中包括的性能监视单元监视由线程引起的存储器访问并且基于存储器访问产生样本，该样本表示访问的存储器位置。该机制可以基于样本和锁定点来检测数据竞争条件的存在。检测可以包括通过线程的第一线程识别对存储器位置的受保护的访问，并且由线程的第二线程识别对存储器位置的不受保护的访问。该过程选择性地输出数据竞争条件的指示。

25. 发明授权

US08789032B1 Feedback-directed inter-procedural optimization 有权
标题翻译：反馈导向的过程间优化
公开(公告)号：US08789032B1
公开(公告)日：2014-07-22
申请号：US12395582
申请日：2009-02-27
申请人： Xinliang David Li , Raksit Ashok , Robert Hundt
发明人： Xinliang David Li , Raksit Ashok , Robert Hundt
IPC分类号： G06F9/45
CPC分类号： G06F8/30 , G06F8/443 , G06F8/4443
摘要： Methods, systems, and apparatus, including computer program products, for inter-procedural optimization, are disclosed. In one aspect, a first executable program module is generated based on a plurality of source code modules. Profile information is collected for the plurality of source code modules by executing the first executable program module. Inter-procedural analysis for the plurality of source code modules is performed during execution of the first executable program module. The inter-procedural analysis is based on the collected profile information. IPO is performed based on the results from the inter-procedural analysis to generate a plurality of object code modules. A second executable program module is generated based on the plurality of object code modules.
摘要翻译：公开了用于程序间优化的方法，系统和装置，包括计算机程序产品。一方面，基于多个源代码模块生成第一可执行程序模块。通过执行第一可执行程序模块为多个源代码模块收集简档信息。在执行第一可执行程序模块期间执行多个源代码模块的程序间分析。程序间分析基于收集的简档信息。基于来自程序间分析的结果执行IPO以生成多个目标代码模块。基于多个目标代码模块生成第二可执行程序模块。

26. 发明授权

US07360207B2 Method and system to analyze inlined functions 失效
标题翻译：分析内联函数的方法和系统
公开(公告)号：US07360207B2
公开(公告)日：2008-04-15
申请号：US10016949
申请日：2001-12-13
申请人： Brian Fahs , Robert Hundt , Vinodha Ramasamy , Tara Krishnaswamy
发明人： Brian Fahs , Robert Hundt , Vinodha Ramasamy , Tara Krishnaswamy
IPC分类号： G06F9/45
CPC分类号： G06F11/3466 , G06F11/3476 , G06F2201/865
摘要： A method and a system for examining an inlined function using a performance analysis tool are described. An inlined function is identified in computer code. Upon identification of the inlined function, and for example in response to executing a breakpoint associated with the inlined function, a performance analysis tool is used to perform desired task on the inlined function.
摘要翻译：描述了使用性能分析工具检查内联功能的方法和系统。在计算机代码中标识了内联函数。在识别内联函数时，并且例如响应于执行与内联函数相关联的断点，使用性能分析工具来对内联函数执行期望的任务。

27. 发明授权

US07185320B2 System and method for processing breakpoint events in a child process generated by a parent process 失效
标题翻译：用于处理由父进程生成的子进程中的断点事件的系统和方法
公开(公告)号：US07185320B2
公开(公告)日：2007-02-27
申请号：US10608179
申请日：2003-06-27
申请人： Eric Gouriou , Robert Hundt , Sujoy Saraswati
发明人： Eric Gouriou , Robert Hundt , Sujoy Saraswati
IPC分类号： G06F9/45
CPC分类号： G06F11/362
摘要： A software tool includes logic configured to enable a child process that inherits the address space of a modified parent process to execute an unaltered version of the address space when the child process inherits the altered address space of the parent process. A method for processing breakpoint events in a child process created from a parent process, when the parent process is modified by a software tool includes, storing unmodified parent process code replaced by each occurrence of a breakpoint inserted into the address space during modification of the parent process, monitoring execution of a child process created by the parent process for an initial breakpoint in the address space, suspending execution of the child process in response to an initial breakpoint, replacing each occurrence of a breakpoint in the address space with the unmodified parent process code, and resuming execution of the child process.
摘要翻译：软件工具包括被配置为当子进程继承父进程的改变的地址空间时允许继承修改的父进程的地址空间的子进程来执行地址空间的未改变版本的逻辑。一种用于处理从父进程创建的子进程中的断点事件的方法，当所述父进程由软件工具修改时，包括：在修改父进程期间，将未修改的父进程代码替换为插入到地址空间中的断点的每个出现处理，监视由父进程为地址空间中的初始断点创建的子进程的执行，暂停响应于初始断点的子进程的执行，用未修改的父进程替换地址空间中的断点的每次出现代码，并恢复子进程的执行。

28. 发明授权

US06996810B2 Lazy and precise update of unwind information for dynamically generated code 有权
公开(公告)号：US06996810B2
公开(公告)日：2006-02-07
申请号：US10016948
申请日：2001-12-13
申请人： Robert Hundt , Vikram Kumar
发明人： Robert Hundt , Vikram Kumar
IPC分类号： G06F9/45
CPC分类号： G06F9/4486
摘要： A method and system for lazily registering dynamically generated code and corresponding unwind information of a process. In one embodiment, the present invention detects a request for first unwind information related to first corresponding dynamically generated code. The present embodiment creates a module which includes data related to the first unwind information and the first corresponding dynamically generated code, and provides an application program interface (API) which allows the data to be registered such that dynamic registration of the first unwind information and the first corresponding dynamically generated code is enabled. The present embodiment also couples an API invocation code sequence to the first corresponding dynamically generated code such that upon execution of the first corresponding dynamically generated code, the API invocation code sequence instructs the API to facilitate registration of the data.

29. 发明申请

US20050251790A1 Systems and methods for instrumenting loops of an executable program 审中-公开
标题翻译：用于测试可执行程序循环的系统和方法
公开(公告)号：US20050251790A1
公开(公告)日：2005-11-10
申请号：US11089584
申请日：2004-04-14
申请人： Robert Hundt
发明人： Robert Hundt
IPC分类号： G06F9/44
CPC分类号： G06F11/3466 , G06F11/3604 , G06F2201/865 , G06F2201/88
摘要： Systems and methods for instrumenting a loop of an executable program are disclosed. One embodiment relates to a method of inserting instrumentation code into an executable program. The method may comprise inserting a register adder initialization instruction prior to a loop entry point of a loop in an executable program such that paths reaching the loop entry point also reaches the register adder initialization instruction, inserting a register add instruction between the loop entry point and prior to a back edge of the loop, and inserting a loop counter update instruction after the back edge of the loop.
摘要翻译：公开了用于测试可执行程序的循环的系统和方法。一个实施例涉及将检测代码插入到可执行程序中的方法。该方法可以包括在可执行程序中的循环的循环入口点之前插入寄存器加法器初始化指令，使得到达循环入口点的路径也到达寄存器加法器初始化指令，在循环入口点和循环入口点之间插入寄存器添加指令在循环的后沿之前，并且在循环的后沿之后插入循环计数器更新指令。

30. 发明授权

US06957421B2 Providing debugging capability for program instrumented code 失效
标题翻译：为程序化代码提供调试功能
公开(公告)号：US06957421B2
公开(公告)日：2005-10-18
申请号：US09771403
申请日：2001-01-26
申请人： Robert Hundt , Vinodha Ramasamy , Umesh Krishnaswamy , Eric Gouriou
发明人： Robert Hundt , Vinodha Ramasamy , Umesh Krishnaswamy , Eric Gouriou
IPC分类号： G06F11/36 , G06F9/44
CPC分类号： G06F11/3644
摘要： The present invention, in various embodiments, is directed to techniques for providing debugging capability for program code instrumentation. In one embodiment, an instrumentor inserts an instrumentation breakpoint at the beginning of a block of original code. When this breakpoint is reached during execution of the application program that includes the block of original code, the instrumenator, from the block of original code, generates a block of instrumented code. This block of instrumented code may include debugging breakpoints that are carried from the block of original code or are inserted into the block of instrumented code during debugging. After generating the instrumented code, the instrumentor executes the instrumented code until debugging breakpoints are reached that stop the program flow, thereby allowing a programmer to perform debugging functions at these debugging breakpoints.
摘要翻译：在各种实施例中，本发明涉及用于提供用于程序代码检测的调试能力的技术。在一个实施例中，工具在原始代码块的开头插入检测断点。当在包括原始代码块的应用程序的执行期间达到该断点时，从原始代码块的主机产生一个检测代码块。该程序化代码块可能包括调试断点，从原始代码块携带或在调试期间插入到检测代码块中。生成仪器化代码后，仪器将执行检测代码，直到达到停止程序流程的断点，从而允许程序员在这些调试断点处执行调试功能。

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