CN114064153A - Embedded dynamic module loading method and device based on multi-core processor - Google Patents
Embedded dynamic module loading method and device based on multi-core processor Download PDFInfo
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- 238000011068 loading method Methods 0.000 title claims abstract description 105
- 238000012545 processing Methods 0.000 claims abstract description 82
- 238000004891 communication Methods 0.000 claims abstract description 68
- 238000012544 monitoring process Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims description 11
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44521—Dynamic linking or loading; Link editing at or after load time, e.g. Java class loading
- G06F9/44526—Plug-ins; Add-ons
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/546—Message passing systems or structures, e.g. queues
Abstract
The invention discloses an embedded dynamic module loading method and device based on a multi-core processor, wherein the device comprises a dynamic loading component and a dynamic loading management component; a communication agent module deployed on a main processing core of the multi-core processor receives dynamic module loading, refreshing and unloading commands issued by a dynamic loading component of a host machine, and the input monitoring agent module forwards the commands to a target processing core in an inter-core communication mode; the dynamic loading management module arranged on the target processing core executes the command, sends back the command execution result to the main processing core output monitoring agent module in an inter-core communication mode, and sends back the command execution result to the dynamic loading component by the communication agent module. The invention adopts the mode of inter-core communication to realize a dynamic loading mechanism on all processing cores of the multi-core processor, can give full play to the processing capability of the multi-core processor, enhances the flexibility, fault tolerance and expansibility of embedded application software, and improves the software development efficiency.
Description
Technical Field
The invention relates to a dynamic module loading method, in particular to an embedded dynamic module loading method and device based on a multi-core processor, and belongs to the technical field of embedded system development.
Background
In a traditional development mode of an embedded system, tasks from simple bare computer programs to complex tasks of binding an operating system and an application module are to compile and link programs into a binary file, and then load or burn the binary file onto a target computer to run debugging. The traditional embedded system development mode lacks flexibility, fault tolerance and expansibility, so that the problems of too much software development repetitive work, low software development efficiency and the like are caused.
Flexibility, fault tolerance and expansibility are of great significance to the development of embedded software, and the dynamic loading mechanism can enable an embedded operating system to have the three characteristics at the same time. The dynamic loading mechanism can realize the separation of the operating system and the application module, so that the operating system has the functions of the linker and the loader, the application module can be dynamically loaded into the system through communication links such as a network, a serial port and the like, the dynamic linking and configuration of all data and functions are realized in the operating system, and the dynamic maintenance and expansion of the system functions are realized.
However, for the application of the embedded multi-core processor operating in the AMP mode, if other processing cores on the processor except the host cannot communicate with the host, the dynamic module can only be completely loaded on the host, which results in an excessive load on the host, and the multi-core processor cannot fully exert its multi-core multiprocessing capability.
Disclosure of Invention
The invention aims to provide an embedded dynamic module loading method and device based on a multi-core processor to solve the problem.
The invention realizes the purpose through the following technical scheme: a dynamic module loading device based on a multi-core processor comprises
The dynamic loading assembly comprises a graphical interface plug-in, a dynamic loading plug-in and a communication management plug-in;
the dynamic loading management component comprises a communication agent module, an input monitoring agent module, an output monitoring agent module and a dynamic loading management module.
The dynamic module loading device based on the multi-core processor adopts a C/S (client/server) architecture, a remote general-purpose computer is used as a host machine, and a dynamic loading component is deployed; the multi-core processor serves as a target machine, runs an AMP mode, and is provided with a dynamic loading management component.
The communication agent module, the input monitoring agent module and the output monitoring agent module are deployed on a main processing core of the multi-core processor, and the dynamic loading management module is deployed on all processing cores of the multi-core processor.
The main processing core of the multi-core processor can communicate with a host machine through communication links such as Ethernet or serial ports, and an inter-core communication controller is arranged between the main processing core and other processing cores; other processing cores of the multi-core processor cannot communicate with the host.
An embedded dynamic module loading method based on a multi-core processor comprises
S1: selecting a command to be executed by the dynamic module through the graphical interface plug-in, and triggering the command;
s2: the dynamic loading plug-in packages the command according to a dynamic loading protocol format;
s3: the communication management plug-in sends a command to the main core;
s4: the communication agent module receives a command issued by the host machine component and sends the command to the input monitoring agent module;
s5: the input monitoring agent module analyzes the command, takes the command as a message text, and forwards the command to a target processing core according to the format of the inter-core communication protocol;
s6: a dynamic loading management module of a target processing core receives and executes a command;
s7: the dynamic loading management module of the target processing core takes the command execution result as a message text and forwards the message text to the output monitoring module according to the inter-core communication protocol format;
s8: the output monitoring module receives the command execution result, encapsulates the command execution result according to the dynamic loading protocol format and sends the command execution result to the communication agent module;
s9: the communication agent module sends the command execution result to the communication management plug-in;
s10: the communication management plug-in receives the command execution result;
s11: the dynamic loading plug-in stores the command execution result in a local data container and pushes the command execution result to the graphical interface plug-in;
s12: the graphical interface plug-in displays the command execution results.
As a still further scheme of the invention: in S1, the command includes three types, namely dynamic loading, dynamic refreshing and dynamic unloading.
The dynamic loading refers to downloading a binary file of a dynamic module into a memory of the multi-core processor, repositioning a symbol of the dynamic module, dynamically linking the dynamic module, and loading the dynamic module into a system for operation;
the dynamic refreshing refers to traversing a dynamic module linked list, searching and updating information such as the name, ID, running state, running core number and the like of the currently running dynamic module to the dynamic loading component;
dynamic offload refers to removing dynamic modules from the multicore processor memory and reclaiming the memory allocated to the dynamic modules.
As a still further scheme of the invention: the dynamic loading linked list is a linked list maintained by the dynamic loading management module in the executing process of the dynamic loading command and the dynamic unloading command and is used for recording the name, the ID, the running state and the running core number of the dynamic module.
As a still further scheme of the invention: in S2 and S8, the dynamic load protocol format includes information such as command type, data length, source processor number, source processing core number, target processor number, target processing core number, command execution result, and the like.
As a still further scheme of the invention: in S5 and S7, the communication among the input snoop agent module, the output snoop agent module, and the dynamic load management module is an inter-core communication mode based on a message queue, and when inter-core communication is performed, the main processing core sends an inter-core message queue containing a command to the dynamic load management module on the target processing core through the input snoop agent module; the target processing core receives the inter-core message queue, processes the command and then sends the inter-core message queue containing the command execution result to the output monitoring agent module on the main processing core.
During the initialization process of the dynamic loading management module, an inter-core message queue needs to be initialized, and a message queue ID handle is set according to a processing core number.
As a still further scheme of the invention: in S5 and S7, the format of the inter-core communication protocol includes message length, message priority, message queue ID, target processing core number, source processing core number, and message body.
The invention has the beneficial effects that: the method comprises the steps that a communication agent module, an input monitoring agent module and an output monitoring agent module are deployed on a main processing core of a multi-core processor, and loading, refreshing and unloading commands of a dynamic module issued by a host machine dynamic loading component are forwarded to a target processing core in an inter-core communication mode, so that a dynamic loading management module deployed on the target processing core executes corresponding commands, a dynamic loading mechanism is realized on all processing cores of the multi-core processor, the processing capacity of the multi-core processor can be fully exerted, the flexibility, fault tolerance and expansibility of embedded application software are enhanced, and the software development efficiency is improved.
Drawings
FIG. 1 is a schematic view of the frame structure of the apparatus of the present invention;
FIG. 2 is a flow chart illustrating the implementation of the method of the present invention;
FIG. 3 is a diagram illustrating a dynamic loading protocol format according to the present invention;
FIG. 4 is a diagram illustrating an inter-core communication protocol format according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, a dynamic module loading apparatus based on a multi-core processor includes
The dynamic loading assembly comprises a graphical interface plug-in, a dynamic loading plug-in and a communication management plug-in;
the dynamic loading management component comprises a communication agent module, an input monitoring agent module, an output monitoring agent module and a dynamic loading management module.
The dynamic module loading device based on the multi-core processor adopts a C/S (client/server) architecture, a remote general-purpose computer is used as a host machine, and a dynamic loading component is deployed; the multi-core processor serves as a target machine, runs an AMP mode, and is provided with a dynamic loading management component.
The communication agent module, the input monitoring agent module and the output monitoring agent module are deployed on a main processing core of the multi-core processor, and the dynamic loading management module is deployed on all processing cores of the multi-core processor.
The main processing core of the multi-core processor can communicate with a host machine through communication links such as Ethernet or serial ports, and an inter-core communication controller is arranged between the main processing core and other processing cores; other processing cores of the multi-core processor cannot communicate with the host.
Example two
Referring to fig. 2 to 4, an embedded dynamic module loading method based on a multi-core processor includes 8 processing cores, and the 8 processing cores all operate in an AMP mode. Wherein, only the processing core No. 0 supports the communication with the host machine by the mode of Ethernet, other processing cores can not communicate with the host machine, and the processing core No. 0 and other processing cores have inter-core communication controllers, therefore the processing core No. 0 is selected as the main processing core, and the dynamic module loading method comprises the following steps:
s1, selecting a command to be executed by the dynamic module through the graphical interface plug-in, and triggering the command;
s2, the dynamic loading plug-in packages the command according to the dynamic loading protocol format;
s3, the communication management plug-in sends a command to the main core;
s4, the communication agent module receives the command issued by the host machine component and sends the command to the input monitoring agent module;
s5, inputting the command analyzed by the monitoring agent module, using the command as the message text, and forwarding the command to the target processing core according to the format of the inter-core communication protocol;
s6, the dynamic loading management module of the target processing core receives and executes the command;
s7, the dynamic loading management module of the target processing core takes the command execution result as the message text and forwards the message text to the output monitoring module according to the inter-core communication protocol format;
s8, the output monitoring module receives the command execution result, packages the command execution result according to the dynamic loading protocol format, and sends the command execution result to the communication agent module;
s9, the communication agent module sends the command execution result to the communication management plug-in;
s10, the communication management plug-in receives the command execution result;
s11, the dynamic loading plug-in stores the command execution result in the local data container and pushes the command execution result to the graphical interface plug-in;
s12, the graphic interface plug-in displays the command execution result.
In the embodiment of the present invention, in S1, the command includes three types, namely dynamic loading, dynamic refreshing, and dynamic unloading.
The dynamic loading refers to downloading a binary file of a dynamic module into a memory of the multi-core processor, repositioning a symbol of the dynamic module, dynamically linking the dynamic module, and loading the dynamic module into a system for operation;
the dynamic refreshing refers to traversing a dynamic module linked list, searching and updating information such as the name, ID, running state, running core number and the like of the currently running dynamic module to the dynamic loading component;
dynamic offload refers to removing dynamic modules from the multicore processor memory and reclaiming the memory allocated to the dynamic modules.
In the embodiment of the present invention, the dynamic loading linked list is a linked list maintained by the dynamic loading management module during the execution process of the dynamic loading command and the dynamic unloading command, and is used for recording the name, the ID, the running state and the running core number of the dynamic module.
In the embodiments of the present invention, in S2 and S8, the dynamic load protocol format includes information such as a command type, a data length, a source processor number, a source processing core number, a target processor number, a target processing core number, a command execution result, and the like.
In the embodiments of the present invention, in S5 and S7, the communication among the input snoop agent module, the output snoop agent module, and the dynamic load management module is an inter-core communication mode based on a message queue, and when performing inter-core communication, the main processing core sends an inter-core message queue containing a command to the dynamic load management module on the target processing core through the input snoop agent module; the target processing core receives the inter-core message queue, processes the command and then sends the inter-core message queue containing the command execution result to the output monitoring agent module on the main processing core.
During the initialization process of the dynamic loading management module, an inter-core message queue needs to be initialized, and a message queue ID handle is set according to a processing core number.
In the embodiment of the present invention, in S5 and S7, the format of the inter-core communication protocol includes a message length, a message priority, a message queue ID, a target processing core number, a source processing core number, and a message body.
The working principle is as follows: a communication agent module deployed on a main processing core of the multi-core processor receives dynamic module loading, refreshing and unloading commands issued by a dynamic loading component of a host machine, and the input monitoring agent module forwards the commands to a target processing core in an inter-core communication mode; the dynamic loading management module arranged on the target processing core executes the command, sends back the command execution result to the main processing core output monitoring agent module in an inter-core communication mode, and sends back the command execution result to the dynamic loading component by the communication agent module. The invention adopts the mode of inter-core communication to realize a dynamic loading mechanism on all processing cores of the multi-core processor, can give full play to the processing capability of the multi-core processor, enhances the flexibility, fault tolerance and expansibility of embedded application software, and improves the software development efficiency.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a developments module loading device based on multicore processor which characterized in that: comprises that
The dynamic loading assembly comprises a graphical interface plug-in, a dynamic loading plug-in and a communication management plug-in;
the dynamic loading management component comprises a communication agent module, an input monitoring agent module, an output monitoring agent module and a dynamic loading management module;
the dynamic module loading device based on the multi-core processor adopts a C/S (client/server) architecture, a remote general-purpose computer is used as a host machine, and a dynamic loading component is deployed; the multi-core processor is used as a target machine, runs an AMP mode and is provided with a dynamic loading management component;
the system comprises a communication agent module, an input monitoring agent module and an output monitoring agent module, wherein the communication agent module, the input monitoring agent module and the output monitoring agent module are deployed on a main processing core of a multi-core processor, and a dynamic loading management module is deployed on all processing cores of the multi-core processor;
the system comprises a host machine, a main processing core and other processing cores, wherein the main processing core of the multi-core processor is communicated with the host machine through a communication link, and an inter-core communication controller is arranged between the main processing core and the other processing cores; other processing cores of the multi-core processor cannot communicate with the host.
2. The embedded dynamic module loading method based on the multi-core processor, according to claim 1, characterized in that: the dynamic module loading method comprises
S1, selecting a command to be executed by the dynamic module through the graphical interface plug-in, and triggering the command;
s2, the dynamic loading plug-in packages the command according to the dynamic loading protocol format;
s3 the communication management plug-in sends command to the main core;
s4, the communication agent module receives the command sent by the host machine component and sends the command to the input monitoring agent module;
s5 inputting the command analyzed by the monitoring agent module, using the command as message text, and forwarding the command to the target processing core according to the format of the inter-core communication protocol;
s6 the dynamic loading management module of the target processing core receives and executes the command;
s7, the dynamic loading management module of the target processing core takes the command execution result as the message text and forwards the message text to the output monitoring module according to the inter-core communication protocol format;
s8, the output monitoring module receives the command execution result, packages the command execution result according to the dynamic loading protocol format, and sends the command execution result to the communication agent module;
s9, the communication agent module sends the command execution result to the communication management plug-in;
s10 the communication management plug-in receives the command execution result;
s11, the dynamic loading plug-in stores the command execution result in the local data container and pushes the command execution result to the graphical interface plug-in;
s12 the graphical interface plug-in displays the command execution result.
3. The embedded dynamic module loading method based on the multi-core processor, according to claim 2, characterized in that: in S1, the command includes three types, namely dynamic loading, dynamic refreshing and dynamic unloading;
the dynamic loading refers to downloading a binary file of a dynamic module into a memory of the multi-core processor, repositioning a symbol of the dynamic module, dynamically linking the dynamic module, and loading the dynamic module into a system for operation;
the dynamic refreshing refers to traversing a dynamic module linked list, searching and updating the name, ID, running state and running core number information of the currently running dynamic module to the dynamic loading component;
dynamic offload refers to removing dynamic modules from the multicore processor memory and reclaiming the memory allocated to the dynamic modules.
4. The embedded dynamic module loading method based on the multi-core processor, according to claim 3, characterized in that: the dynamic loading linked list is a linked list maintained by the dynamic loading management module in the executing process of the dynamic loading command and the dynamic unloading command and is used for recording the name, the ID, the running state and the running core number of the dynamic module.
5. The embedded dynamic module loading method based on the multi-core processor, according to claim 2, characterized in that: in the S2 and S8, the dynamic loading protocol format includes a command type, a data length, a source processor number, a source processing core number, a target processor number, a target processing core number, a command, and a command execution result.
6. The embedded dynamic module loading method based on the multi-core processor, according to claim 2, characterized in that: in S5 and S7, the communication among the input snoop agent module, the output snoop agent module, and the dynamic load management module is an inter-core communication mode based on a message queue, and when inter-core communication is performed, the main processing core sends an inter-core message queue containing a command to the dynamic load management module on the target processing core through the input snoop agent module; the target processing core receives the inter-core message queue, processes the command and then sends the inter-core message queue containing the command execution result to an output monitoring agent module on the main processing core;
during the initialization process of the dynamic loading management module, an inter-core message queue needs to be initialized, and a message queue ID handle is set according to a processing core number.
7. The embedded dynamic module loading method based on the multi-core processor, according to claim 2, characterized in that: in S5 and S7, the format of the inter-core communication protocol includes message length, message priority, message queue ID, target processing core number, source processing core number, and message body.
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