State tracking device for multi-core processor
A multi-core processor and tracking device technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problems of poor scalability, poor observation ability, troublesome operation, etc., and achieve the effect of convenient and accurate analysis, enhanced observation ability, and convenient expansion
Inactive Publication Date: 2013-01-16
C SKY MICROSYST CO LTD
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Problems solved by technology
[0006] In order to overcome the deficiencies of poor observation ability, cumbersome operation, and poor scalability of the existing multi-core processor state tracking technology, the present invention provides a multi-core processor state tracking device with good observation ability, convenient operation, and good scalability
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[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to make the purpose, technical solutions and advantages of the present invention clearer.
[0031] refer to Figure 1~Figure 6 , a multi-core processor state tracking device, the device includes five parts, respectively: UART unit, APB bus, tracking control unit, tracking bus interface unit and AHB bus.
[0032] The UART unit is a channel for the multi-core processor state tracking device to communicate with the debugging tracking software on the debugging host, including transmitting debugging tracking commands from the debugging host, and transmitting data requested by the debugging host to the debugging host. These communications are performed in units of single characters, because the debugging and tracking software on the debugging host inputs commands in units of characters and displays data in units of characters.
[0033]...
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The invention discloses a state tracking device for a multi-core processor, which comprises a tracking bus interface unit, a tracking bus, a tracking control unit, and a debugging interface unit. The tracking bus interface unit is used for converting an access signal on a bus and to a storage device in the processor into a form that can be received by the corresponding storage device, and is used for converting a response signal of the storage device into a form that can be received by the bus ; the tracking bus is used for providing a communication channel and connecting the tracking bus interface unit, the tracking control unit and the debugging interface unit; the tracking control unit is used for receiving and saving debugging tracking orders inputted by an external debug host, filtering away invalid debugging tracking orders, analyzing and processing valid debugging tracking orders to send an access request to the storage device in the processor, initializing the debugging interface unit, and outputting accessed data; and the debugging interface unit is used for transmitting the debugging tracking orders from the debug host and transmitting the data request by the debug host to the debug host. The state tracking device has the advantages of good observation ability, convenience in operation and good expansibility.
Description
technical field [0001] The invention relates to the field of processor debugging and tracking, in particular to a multi-core processor state tracking device. Background technique [0002] As the performance of modern multi-core processors continues to increase, so does their size and complexity. In order to give full play to the highest performance of processor hardware, the operating system and software for multi-core platforms are becoming more and more complex. This makes system debugging and tracking in a multi-core environment more complicated and difficult, because multi-core systems have some unique characteristics, such as cache coherence issues, TLB coherence issues, software concurrency, and so on. When debugging in a multi-core environment, there is also a synchronization problem between cores. [0003] At present, the debug trace module of the processor basically adopts the JTAG interface, and the registers in the debug trace module are configured by inputting ...
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Inventor 冯炯朱朋黄凯葛海通
Owner C SKY MICROSYST CO LTD