CN106293629B - Storehouse acquisition methods and device - Google Patents
Storehouse acquisition methods and device Download PDFInfo
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- CN106293629B CN106293629B CN201610676036.0A CN201610676036A CN106293629B CN 106293629 B CN106293629 B CN 106293629B CN 201610676036 A CN201610676036 A CN 201610676036A CN 106293629 B CN106293629 B CN 106293629B
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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
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/32—Address formation of the next instruction, e.g. by incrementing the instruction counter
- G06F9/321—Program or instruction counter, e.g. incrementing
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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
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/30098—Register arrangements
- G06F9/30101—Special purpose registers
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Abstract
The disclosure is directed to a kind of storehouse acquisition methods and devices, belong to field of computer technology.The described method includes: when the local ccf layer of program is abnormal, create goal stack, and by specified function in the program counter PC register that the address in the corresponding memory headroom of described program is stored in described program, the specified function is for obtaining described program in the storehouse of virtual machine language layer；Described program is continued to run by the goal stack and the PC register, to obtain described program in the storehouse of the virtual machine language layer.Storehouse of the program obtained in the disclosure in the virtual machine language layer, it can will be determined when the local ccf layer is abnormal in order to technical staff, the calling hierarchical relationship of the virtual machine language layer at this time, and then the reason of local ccf layer is abnormal quickly is analyzed and positions convenient for technical staff.
Description
Technical field
This disclosure relates to field of computer technology more particularly to a kind of storehouse acquisition methods and device.
Background technique
Computer can complete different tasks by running a variety of different programs, and computer is in operation program
When, the operation of the program is realized often by virtual machine language layer and local ccf layer.Wherein, virtual machine language layer is used for
Support the operation of virtual machine, and virtual machine language layer can be realized by language such as java.Local ccf layer is for providing local
Service, chained library etc., such as local ccf layer can be native layers, in addition, local ccf layer can pass through the language such as C, C++
It realizes.In the operational process of program, when local ccf layer is abnormal, computer often obtains the program in the local
The storehouse of ccf layer, technical staff can according to the program the local ccf layer storehouse, to analyze and position the local frame
The reason of rack-layer is abnormal.
Summary of the invention
To overcome the problems in correlation technique, the disclosure provides a kind of storehouse acquisition methods and device.
According to the first aspect of the embodiments of the present disclosure, a kind of storehouse acquisition methods are provided, which comprises
When the local ccf layer of program is abnormal, goal stack is created, and specified function is corresponding in described program
Memory headroom in address be stored in the program counter PC register of described program, the specified function is for obtaining institute
Program is stated in the storehouse of virtual machine language layer；
Described program is continued to run by the goal stack and the PC register, to obtain described program in the void
The storehouse of quasi- machine linguistic level.
Optionally, described when the local ccf layer of program is abnormal, goal stack is created, and by specified function in institute
It states before the address in the corresponding memory headroom of program is stored in the PC register of described program, further includes:
When detecting that the local ccf layer generates abnormal signal, determine that the local ccf layer is abnormal.
Optionally, the creation goal stack, and the address by specified function in the corresponding memory headroom of described program
Before being stored in the PC register of described program, further includes:
Judge whether described program is in designated program state, the designated program state, which is used to indicate, has obtained the journey
Storehouse of the sequence in the virtual machine language layer；
When described program is not in designated program state, the creation goal stack is executed, and by specified function in institute
State the step that the address in the corresponding memory headroom of program is stored in the PC register of described program.
Optionally, described that address of the specified function in the corresponding memory headroom of described program is stored in described program
Before in PC register, further includes:
From the corresponding memory headroom of described program, the specified function is searched；
When finding the specified function, ground of the specified function in the corresponding memory headroom of described program is obtained
Location.
Optionally, described that described program is continued to run by the goal stack and the PC register, described in obtaining
Storehouse of the program in the virtual machine language layer, comprising:
Described program is continued to run by the goal stack and the PC register, and is continuing to run described program
In the process, the address according to the specified function stored in the PC register in the corresponding memory headroom of described program,
From the corresponding memory headroom of described program, the specified function is obtained；
By executing the specified function, to obtain described program in the storehouse of the virtual machine language layer.
Optionally, described that described program is continued to run by the goal stack and the PC register, described in obtaining
Program is after the storehouse of the virtual machine language layer, further includes:
Preset address is stored in the PC register；
During continuing to run described program, by the preset address stored in the PC register, to touch
Send out the abnormality processing to described program.
According to the second aspect of an embodiment of the present disclosure, a kind of storehouse acquisition device is provided, described device includes:
Creation module, for creating goal stack, and specified function is existed when the local ccf layer of program is abnormal
Address in the corresponding memory headroom of described program is stored in the program counter PC register of described program, the specified letter
Number is for obtaining described program in the storehouse of virtual machine language layer；
Module is run, for continuing to run described program by the goal stack and the PC register, to obtain
Program is stated in the storehouse of the virtual machine language layer.
Optionally, described device further include:
Detection module, for determining the local ccf layer when detecting that the local ccf layer generates abnormal signal
It is abnormal.
Optionally, described device further include:
Judgment module, for judging whether described program is in designated program state, the designated program state is for referring to
Show and has obtained described program in the storehouse of the virtual machine language layer；
First trigger module, for when described program is not in designated program state, triggering the creation module creation
Goal stack, and address of the specified function in the corresponding memory headroom of described program is stored in the PC register of described program
In.
Optionally, described device further include:
Searching module, for searching the specified function from the corresponding memory headroom of described program；
Module is obtained, it is corresponding in described program for when finding the specified function, obtaining the specified function
Address in memory headroom.
Optionally, the operation module includes:
First acquisition submodule, for continuing to run described program by the goal stack and the PC register, and
It is corresponding in described program according to the specified function stored in the PC register during continuing to run described program
Memory headroom in address obtain the specified function from the corresponding memory headroom of described program；
Second acquisition submodule executes the specified function for passing through, to obtain described program in the virtual machine language
Say the storehouse of layer.
Optionally, described device further include:
Storage module, for preset address to be stored in the PC register；
Second trigger module, for passing through what is stored in the PC register during continuing to run described program
The preset address, to trigger the abnormality processing to described program.
According to the third aspect of an embodiment of the present disclosure, a kind of storehouse acquisition device is provided, described device includes:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
When the local ccf layer of program is abnormal, goal stack is created, and specified function is corresponding in described program
Memory headroom in address be stored in the program counter PC register of described program, the specified function is for obtaining institute
Program is stated in the storehouse of virtual machine language layer；
Described program is continued to run by the goal stack and the PC register, to obtain described program in the void
The storehouse of quasi- machine linguistic level.
The technical scheme provided by this disclosed embodiment can include the following benefits: in the embodiments of the present disclosure, when
When the local ccf layer of program is abnormal, goal stack is created, and by specified function in the corresponding memory headroom of the program
Address be stored in the PC register of the program, subsequent continue to run program when institute since goal stack can be used for storing
Instruction, data, address for using etc., therefore, under the premise of the storage of the PC register of the program has address, which can lead to
The PC register of goal stack and the program is crossed to keep continuing to run for the program, and then in the mistake for continuing to run the program
Cheng Zhong obtains the program in the storehouse of virtual machine language layer.Storehouse due to the program in the virtual machine language layer would generally wrap
Containing program instruction, parameter used in the virtual machine language layer etc., therefore, according to the program in the virtual machine language layer
Storehouse, technical staff readily determine when the local ccf layer is abnormal, the calling level of the virtual machine language layer at this time
Relationship, and then technical staff can quickly to analyze and position the local according to the calling hierarchical relationship of the virtual machine language layer
The reason of ccf layer is abnormal, the working efficiency for the personnel that develop skill.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is a kind of flow chart of storehouse acquisition methods shown according to an exemplary embodiment.
Fig. 2 is the flow chart of another storehouse acquisition methods shown according to an exemplary embodiment.
Fig. 3 A is the block diagram of the first storehouse acquisition device shown according to an exemplary embodiment.
Fig. 3 B is the block diagram of second of storehouse acquisition device shown according to an exemplary embodiment.
Fig. 3 C is the block diagram of the third storehouse acquisition device shown according to an exemplary embodiment.
Fig. 3 D is the block diagram of the 4th kind of storehouse acquisition device shown according to an exemplary embodiment.
Fig. 3 E is a kind of block diagram for running module shown according to an exemplary embodiment.
Fig. 3 F is the block diagram of the 5th kind of storehouse acquisition device shown according to an exemplary embodiment.
Fig. 4 is the block diagram of the 6th kind of storehouse acquisition device shown according to an exemplary embodiment.
Fig. 5 is the block diagram of the 7th kind of storehouse acquisition device shown according to an exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Before to the embodiment of the present disclosure carrying out that explanation is explained in detail, first the application scenarios of the embodiment of the present disclosure are given
Explanation.In the related technology, in the operational process of program, when local ccf layer is abnormal, computer often obtains should
Program the local ccf layer storehouse, technical staff can according to the program the local ccf layer storehouse, analyzing and
Position the reason of local ccf layer is abnormal.Under normal conditions, the exception of local ccf layer is particularly likely that by virtual machine
Caused by calling of the linguistic level to the local ccf layer, the storehouse due to program in local ccf layer generally only exists comprising the program
The information such as parameter, local variable used in the local ccf layer, and and do not include the program virtual machine language layer information,
So technical staff is often difficult to determine the calling of the virtual machine language layer according to the program in the storehouse of the local ccf layer
Hierarchical relationship, to increase analysis and position the difficulty for the reason of local ccf layer is abnormal.Therefore, the disclosure is implemented
Example provides a kind of storehouse acquisition methods, come be convenient for technical staff determine program in the calling hierarchical relationship of virtual machine language layer,
And then it reduces analysis and positions the difficulty for the reason of local ccf layer is abnormal.
Fig. 1 is a kind of flow chart of storehouse acquisition methods shown according to an exemplary embodiment.As shown in Figure 1, the party
Method includes the following steps.
In a step 101, when the local ccf layer of program is abnormal, goal stack is created, and specified function is existed
Address in the corresponding memory headroom of program is stored in PC (Program Counter, program counter) register of program,
Specified function is for obtaining program in the storehouse of virtual machine language layer.
In a step 102, program is continued to run by goal stack and PC register, to obtain program in virtual machine language
The storehouse of layer.
In the embodiments of the present disclosure, when the local ccf layer of program is abnormal, goal stack is created, and by specified letter
Number is in the PC register that the address in the corresponding memory headroom of the program is stored in the program, since goal stack can be used for
Store it is subsequent continue to run used instruction, data, address etc. when the program, therefore, the program PC register store
Under the premise of having address, the program can be kept by goal stack and the PC register of the program program after reforwarding
Row, and then during continuing to run the program, the program is obtained in the storehouse of virtual machine language layer.Since the program is at this
The storehouse of virtual machine language layer would generally include program instruction, parameter used in the virtual machine language layer etc., therefore, root
According to the program in the storehouse of the virtual machine language layer, technical staff is readily determined when the local ccf layer is abnormal, and is somebody's turn to do
The calling hierarchical relationship of virtual machine language layer at this time, and then technical staff can close according to the calling level of the virtual machine language layer
System quickly analyzes and position the reason of local ccf layer is abnormal, the working efficiency for the personnel that develop skill.
Optionally, when the local ccf layer of program is abnormal, goal stack is created, and by specified function in program pair
Before the address in memory headroom answered is stored in the PC register of program, further includes:
When detecting that local ccf layer generates abnormal signal, determine that local ccf layer is abnormal.
In the embodiments of the present disclosure, it can just be completed to the different of local ccf layer according only to the presence or absence of abnormal signal
Judgement whether often generation, the deterministic process is simple and convenient, and judging efficiency is higher.And since abnormal signal is usually local frame
What layer was automatically generated when being abnormal, therefore, accuracy of judgement degree is also higher.
Optionally, goal stack is created, and address of the specified function in the corresponding memory headroom of program is stored in journey
Before in the PC register of sequence, further includes:
Whether determining program is in designated program state, and designated program state, which is used to indicate, has obtained program in virtual machine language
Say the storehouse of layer；
When program is not in designated program state, creation goal stack is executed, and specified function is corresponding in program
Address in memory headroom is stored in the step in the PC register of program.
In the embodiments of the present disclosure, due to creation goal stack and by specified function in the corresponding memory headroom of the program
In address be stored in the PC register of the program, be in order to guarantee it is subsequent can continue to run the program, and then obtaining should
Program can be determined and the journey also has not been obtained and when the program is not in designated program state in the storehouse of virtual machine language layer
Sequence then needs to create goal stack in the storehouse of the virtual machine language layer at this time, and by specified function in the program is corresponding
The address in space is deposited to be stored in the PC register of the program, with guarantee it is subsequent can be to the program in the virtual machine language layer
Storehouse obtained.
Optionally, by specified function in the PC register that the address in the corresponding memory headroom of program is stored in program it
Before, further includes:
From the corresponding memory headroom of program, specified function is searched；
When finding specified function, address of the specified function in the corresponding memory headroom of program is obtained.
In the embodiments of the present disclosure, specified function directly can be searched in the corresponding memory headroom of the program, the lookup
Operation is simple, improves the search efficiency of specified function, and then improves and obtain specified function in the program is corresponding
Deposit the efficiency of the address in space.
Optionally, program is continued to run by goal stack and PC register, to obtain program in virtual machine language layer
Storehouse, comprising:
Program is continued to run by goal stack and PC register, and during continuing to run program, is posted according to PC
Address of the specified function stored in storage in the corresponding memory headroom of program is obtained from the corresponding memory headroom of program
Specified function；
By executing specified function, to obtain program in the storehouse of virtual machine language layer.
In the embodiments of the present disclosure, by the way that address of the specified function in the corresponding memory headroom of the program is stored in this
In the PC register of program, it is ensured that during continuing to run the program based on the PC register, deposited according to the PC
The address stored in device, quick obtaining can accurately obtain the program at this to specified function, and then by executing specified function
The storehouse of virtual machine language layer.
Optionally, program is continued to run by goal stack and PC register, to obtain program in virtual machine language layer
After storehouse, further includes:
Preset address is stored in PC register；
During continuing to run program, by the preset address stored in PC register, to trigger to the different of program
Often processing.
It in the embodiments of the present disclosure, can be by the preset address stored in the PC register, to trigger to the program
Abnormality processing can continue to carry out the program different to guarantee obtaining the program after the storehouse of the virtual machine language layer
Often processing, guarantees being normally carried out for intrinsic exception handling logic.
All the above alternatives, can form the alternative embodiment of the disclosure according to any combination, and the disclosure is real
It applies example and this is no longer repeated one by one.
Fig. 2 is a kind of flow chart of storehouse acquisition methods shown according to an exemplary embodiment.As shown in Fig. 2, the party
Method includes the following steps.
In step 201, in the operational process of program, judge whether local ccf layer is abnormal.
It should be noted that in the operational process of program, judge that operation that whether local ccf layer is abnormal can be with
It is executed by exception processing module, the embodiment of the present disclosure is not specifically limited in this embodiment.
In addition, local ccf layer, for providing local service, chained library etc., such as local ccf layer can be native layers
Deng the embodiment of the present disclosure is not specifically limited in this embodiment.And local ccf layer can realize that the disclosure is real by language such as C, C++
Example is applied to be not specifically limited in this embodiment.
Wherein, when judging whether local ccf layer is abnormal, abnormal letter can be generated when detecting the local ccf layer
Number when, determine that the local ccf layer is abnormal；When local ccf layer generation abnormal signal is not detected, the local is determined
Ccf layer no exceptions.Certainly, in practical application, it can also judge in other ways whether local ccf layer is abnormal,
The embodiment of the present disclosure is not specifically limited in this embodiment.
It is abnormal it should be noted that abnormal signal is used to indicate the local ccf layer, which can be
When being abnormal, the abnormal signal is generated, and in practical application, which can produce according to different abnormal conditions
Raw different abnormal signal, the embodiment of the present disclosure are not specifically limited in this embodiment.
In addition, the embodiment of the present disclosure can just be completed to the different of local ccf layer according only to the presence or absence of abnormal signal
Judgement whether often generation, the deterministic process is simple and convenient, and judging efficiency is higher.And since abnormal signal is usually local frame
What layer was automatically generated when being abnormal, therefore, accuracy of judgement degree is also higher.
In step 202, when ccf layer is abnormal when the local, goal stack is created, and by specified function in the journey
Address in the corresponding memory headroom of sequence is stored in the PC register of the program.
It should be noted that creation goal stack, and the address by specified function in the corresponding memory headroom of the program
The operation being stored in the PC register of the program can obtain module by storehouse to execute, and the storehouse obtains module and can wrap
Contained in exception processing module, certainly, which obtains module can also exist independently of each other with the exception processing module, this public affairs
Embodiment is opened to be not specifically limited in this embodiment.
Wherein, the operation for creating goal stack is similar with the operation for creating a certain storehouse in the related technology, and the disclosure is implemented
Example is to this without elaborating.
It should be noted that goal stack can be used for storing and subsequent continue to run used instruction, number when the program
According to, address etc., the embodiment of the present disclosure is not specifically limited in this embodiment.
In addition, PC register can be used for storing the address of computer instructions to be executed, computer can be according to this
The address acquisition instruction stored in PC register, and then execute the instruction.
Furthermore specified function can be for obtaining the program in the storehouse of the virtual machine language layer, such as specified function
Exception.printStackTrace () etc., the embodiment of the present disclosure is not specifically limited in this embodiment.
Further, the PC that address of the specified function in the corresponding memory headroom of the program is stored in the program is deposited
Before in device, specified function can also be searched from the corresponding memory headroom of the program, when finding specified function, obtained
Address of the specified function in the corresponding memory headroom of the program.
It wherein,, can be empty from the corresponding memory of the program when searching specified function from the corresponding memory headroom of the program
Between in, search designated symbols the function where designated symbols is determined as specified function, at this time when finding designated symbols
Computer can quickly and easily identify specified function according only to designated symbols, to improve the lookup of the specified function
Efficiency.Certainly, in practical application, specified function, example can also be searched in other ways from the corresponding memory headroom of the program
Such as, specified function can be searched according to specified function itself, directly from the corresponding memory headroom of the program, the disclosure is implemented
Example is not specifically limited in this embodiment.
It should be noted that the symbol that designated symbols include by specified function, and designated symbols can be used for mark and refer to
Determine function, the embodiment of the present disclosure is not specifically limited in this embodiment.
Further, goal stack is created, and address of the specified function in the corresponding memory headroom of the program is stored
Before into the PC register of the program, it can also judge whether the program is in designated program state；When the program is not in
When designated program state, step 202 is executed；When the program is in designated program state, abnormality processing is carried out to the program.
It should be noted that designated program state, which is used to indicate, has obtained the program in the storehouse of virtual machine language layer, and
When the storehouse acquisition methods provided in the embodiment of the present disclosure, which are based on ptrace (Process Tracking) mechanism, to be realized, designated program state
It can be to be tracked state etc., the embodiment of the present disclosure is not specifically limited in this embodiment.
Wherein, virtual machine language layer is used to support the operation of virtual machine, and virtual machine language layer can pass through the languages such as java
Speech realizes that the embodiment of the present disclosure is not specifically limited in this embodiment.
In addition, ptrace mechanism is a kind of Process Tracking mechanism, ptrace mechanism is supplied to a program (pursuer) can
To observe and control the ability of the execution of another program (traced person), and allows pursuer to check and change traced person's
The value of memory and register.
Wherein, judge whether the program is in the operation of designated program state and whether judges a certain program in the related technology
Operation in some program state is similar, and the embodiment of the present disclosure is to this without elaborating.
This is stored in due to creation goal stack and by address of the specified function in the corresponding memory headroom of the program
In the PC register of program, be in order to guarantee it is subsequent can continue to run the program, and then obtain the program in virtual machine language
The storehouse of layer, and when the program is in designated program state, it can determine and obtain the program in the virtual machine language layer
Storehouse is then not required to execute step 202 again at this time, directly abnormality processing is carried out to the program, so as to avoid to the program
It carries out repeating acquisition in the storehouse of the virtual machine language layer, avoids the waste to the process resource of computer.And work as the program
When being not in designated program state, it can determine and the program also has not been obtained in the storehouse of the virtual machine language layer, then need at this time
Step 202 is executed, to guarantee subsequent to obtain the program in the storehouse of the virtual machine language layer.
It should be noted that can be executed by exception processing module to the abnormality processing of program, the embodiment of the present disclosure pair
This is not specifically limited.
In step 203, which is continued to run by the PC register of goal stack and the program, to obtain the program
In the storehouse of virtual machine language layer.
It should be noted that the program is continued to run by the PC register of goal stack and the program, to obtain the journey
Sequence can obtain module by storehouse to execute in the operation of the storehouse of virtual machine language layer, and the embodiment of the present disclosure is not done this specifically
It limits.
In addition, in the embodiment of the present disclosure goal stack can be created and in the journey when local ccf layer is abnormal
Storage address in the PC register of sequence, due to goal stack can be used for storing it is subsequent continue to run the program when used finger
It enables, data, address etc., therefore, under the premise of the storage of the PC register of the program has address, which can pass through target heap
Stack and the PC register of the program keep continuing to run for the program, and then during continuing to run the program, obtain
Take the program in the storehouse of the virtual machine language layer.
Since what is stored in the PC register of the program is address of the specified function in the corresponding memory headroom of the program,
Therefore, which is continued to run by the PC register of goal stack and the program, to obtain the program in the virtual machine language
It, can be during the PC register by goal stack and the program continues to run the program, according to this when the storehouse of layer
Address of the specified function stored in PC register in the corresponding memory headroom of the program, from the corresponding memory headroom of the program
In, specified function is obtained, and by executing specified function, to obtain the program in the storehouse of virtual machine language layer.
Wherein, the address according to the specified function stored in the PC register in the corresponding memory headroom of the program, from
In the corresponding memory headroom of the program, obtain specified function operation with it is a certain according to what is stored in PC register in the related technology
Address, the operation for obtaining some function is similar, and the embodiment of the present disclosure is to this without elaborating.
In addition, can be referred to by executing specified function to obtain the program in the operation of the storehouse of virtual machine language layer
The relevant technologies, the embodiment of the present disclosure is to this without elaborating.
It should be noted that in the embodiment of the present disclosure, by by specified function in the corresponding memory headroom of the program
Address is stored in the PC register of the program, it is ensured that during continuing to run the program based on the PC register,
According to the address stored in the PC register, quick obtaining can be obtained accurately to specified function, and then by executing specified function
Take the program in the storehouse of the virtual machine language layer.Since the program would generally include the journey in the storehouse of the virtual machine language layer
Sequence instruction, parameter used in the virtual machine language layer etc., therefore, according to the program the virtual machine language layer storehouse,
Technical staff readily determines when the local ccf layer is abnormal, the calling hierarchical relationship of the virtual machine language layer at this time,
And then technical staff can quickly to analyze and position the local ccf layer according to the calling hierarchical relationship of the virtual machine language layer
The reason of being abnormal, the working efficiency for the personnel that develop skill.
Further, which is continued to run by the PC register of goal stack and the program, is existed with obtaining the program
After the storehouse of the virtual machine language layer, preset address can also be stored in the PC register, and then continuing to run this
During program, by the preset address stored in the PC register, to trigger the abnormality processing to the program, to guarantee
The program is being obtained after the storehouse of the virtual machine language layer, computer can continue to carry out abnormality processing to the program, guarantee
Intrinsic exception handling logic is normally carried out.
It should be noted that preset address is used to trigger the abnormality processing to the program, and preset address can be set in advance
It sets, if preset address can be address in the corresponding memory headroom of the program of invalid address, abnormality code, abnormality processing letter
Address etc. of the number in the corresponding memory headroom of the program, certainly, preset address can also be configured according to the actual situation, this
Open embodiment is not specifically limited in this embodiment.Wherein, abnormality processing function is used to carry out abnormality processing to the program.
In addition, computer is according to the ground stored in the PC register when what is stored in the PC register is invalid address
Location can not acquisition instruction that is to say that the operation of the program can be abnormal at this time to also can not just execute instruction, thus
To realize triggering to the purpose of the abnormality processing of the program.When what is stored in the PC register is that abnormality code is corresponding in the program
Memory headroom in address when, computer is according to the available abnormality code in the address stored in the PC register, in turn
The abnormality code is executed, the program can be abnormal because executing the abnormality code at this time, to be achieved triggering to the journey
The purpose of the abnormality processing of sequence.When what is stored in PC register is abnormality processing function in the corresponding memory headroom of the program
When address, computer executes the exception according to the available abnormality processing function in the address stored in the PC register
Function is handled, the program can trigger the abnormality processing to the program because executing the abnormality processing function at this time.
Furthermore since under normal conditions, after having executed some function, PC register is often by the address of itself storage
Therefore preset address is stored in the PC by the address for being automatically set as storing in LR (Link Register connects register)
Operation in register can realize by LR register, which can be with are as follows:, will be pre- before executing specified function
If address is stored in the LR register of the program, at this time after executing specified function, which will be automatically by itself
The address of storage is set as the preset address stored in the LR register, so as to realize that preset address, which is stored in the PC, to be posted
Purpose in storage.
In the embodiments of the present disclosure, when the local ccf layer of program is abnormal, goal stack is created, and by specified letter
Number is in the PC register that the address in the corresponding memory headroom of the program is stored in the program, since goal stack can be used for
Store it is subsequent continue to run used instruction, data, address etc. when the program, therefore, the program PC register store
Under the premise of having address, the program can be kept by goal stack and the PC register of the program program after reforwarding
Row, and then during continuing to run the program, the program is obtained in the storehouse of virtual machine language layer.Since the program is at this
The storehouse of virtual machine language layer would generally include program instruction, parameter used in the virtual machine language layer etc., therefore, root
According to the program in the storehouse of the virtual machine language layer, technical staff is readily determined when the local ccf layer is abnormal, and is somebody's turn to do
The calling hierarchical relationship of virtual machine language layer at this time, and then technical staff can close according to the calling level of the virtual machine language layer
System quickly analyzes and position the reason of local ccf layer is abnormal, the working efficiency for the personnel that develop skill.
Fig. 3 A is a kind of block diagram of storehouse acquisition device shown according to an exemplary embodiment.Referring to Fig. 3 A, the device
Including creation module 301 and operation module 302.
Creation module 301 creates goal stack for when the local ccf layer of program is abnormal, and by specified letter
Number is in the program counter PC register that the address in the corresponding memory headroom of program is stored in program, and specified function is for obtaining
Storehouse of the program fetch in virtual machine language layer；
Module 302 is run, for continuing to run program by goal stack and PC register, to obtain program in virtual machine
The storehouse of linguistic level.
Optionally, referring to Fig. 3 B, the device further include:
Detection module 303, for when detecting that local ccf layer generates abnormal signal, determining that it is different that local ccf layer occurs
Often.
Optionally, referring to Fig. 3 C, the device further include:
Whether judgment module 304 is in designated program state for determining program, and designated program state, which is used to indicate, have been obtained
Storehouse of the program fetch in virtual machine language layer；
First trigger module 305, for when program is not in designated program state, triggering creation module to create target heap
Stack, and by specified function in the PC register that the address in the corresponding memory headroom of program is stored in program.
Optionally, referring to Fig. 3 D, the device further include:
Searching module 306, for searching specified function from the corresponding memory headroom of program；
Module 307 is obtained, for when finding specified function, obtaining specified function in the corresponding memory headroom of program
Address.
Optionally, referring to Fig. 3 E, which includes:
First acquisition submodule 3021, for continuing to run program by goal stack and PC register, and after reforwarding
During line program, according to address of the specified function stored in PC register in the corresponding memory headroom of program, from journey
In the corresponding memory headroom of sequence, specified function is obtained；
Second acquisition submodule 3022 executes specified function for passing through, to obtain program in the heap of virtual machine language layer
Stack.
Optionally, referring to Fig. 3 F, the device further include:
Storage module 308, for preset address to be stored in PC register；
Second trigger module 309, for during continuing to run program, by stored in PC register defaultly
Location, to trigger the abnormality processing to program.
In the embodiments of the present disclosure, when the local ccf layer of program is abnormal, goal stack is created, and by specified letter
Number is in the PC register that the address in the corresponding memory headroom of the program is stored in the program, since goal stack can be used for
Store it is subsequent continue to run used instruction, data, address etc. when the program, therefore, the program PC register store
Under the premise of having address, the program can be kept by goal stack and the PC register of the program program after reforwarding
Row, and then during continuing to run the program, the program is obtained in the storehouse of virtual machine language layer.Since the program is at this
The storehouse of virtual machine language layer would generally include program instruction, parameter used in the virtual machine language layer etc., therefore, root
According to the program in the storehouse of the virtual machine language layer, technical staff is readily determined when the local ccf layer is abnormal, and is somebody's turn to do
The calling hierarchical relationship of virtual machine language layer at this time, and then technical staff can close according to the calling level of the virtual machine language layer
System quickly analyzes and position the reason of local ccf layer is abnormal, the working efficiency for the personnel that develop skill.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
Fig. 4 and Fig. 5 is the structural schematic diagram of storehouse acquisition device provided in an embodiment of the present invention.The storehouse acquisition device can
Think terminal or server.
Fig. 4 is a kind of block diagram of device 400 obtained for storehouse shown according to an exemplary embodiment.For example, dress
Setting 400 can be mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical treatment
Equipment, body-building equipment, personal digital assistant etc..
Referring to Fig. 4, device 400 may include following one or more components: processing component 402, memory 404, power supply
Component 406, multimedia component 408, audio component 410, the interface 412 of input/output (I/O), sensor module 414, and
Communication component 416.
The integrated operation of the usual control device 400 of processing component 402, such as with display, telephone call, data communication, phase
Machine operation and record operate associated operation.Processing component 402 may include that one or more processors 420 refer to execute
It enables, to perform all or part of the steps of the methods described above.In addition, processing component 402 may include one or more modules, just
Interaction between processing component 402 and other assemblies.For example, processing component 402 may include multi-media module, it is more to facilitate
Interaction between media component 408 and processing component 402.
Memory 404 is configured as storing various types of data to support the operation in device 400.These data are shown
Example includes the instruction of any application or method for operating on device 400, contact data, and telephone book data disappears
Breath, picture, video etc..Memory 404 can be by any kind of volatibility or non-volatile memory device or their group
It closes and realizes, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM) is erasable to compile
Journey read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash
Device, disk or CD.
Power supply module 406 provides power supply for the various assemblies of device 400.Power supply module 406 may include power management system
System, one or more power supplys and other with for device 400 generate, manage, and distribute the associated component of power supply.
Multimedia component 408 includes the screen of one output interface of offer between described device 400 and user.One
In a little embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen
Curtain may be implemented as touch screen, to receive input signal from the user.Touch panel includes one or more touch sensings
Device is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding action
Boundary, but also detect duration and pressure associated with the touch or slide operation.In some embodiments, more matchmakers
Body component 408 includes a front camera and/or rear camera.When device 400 is in operation mode, such as screening-mode or
When video mode, front camera and/or rear camera can receive external multi-medium data.Each front camera and
Rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio component 410 is configured as output and/or input audio signal.For example, audio component 410 includes a Mike
Wind (MIC), when device 400 is in operation mode, when such as call mode, recording mode, and voice recognition mode, microphone is matched
It is set to reception external audio signal.The received audio signal can be further stored in memory 404 or via communication set
Part 416 is sent.In some embodiments, audio component 410 further includes a loudspeaker, is used for output audio signal.
I/O interface 412 provides interface between processing component 402 and peripheral interface module, and above-mentioned peripheral interface module can
To be keyboard, click wheel, button etc..These buttons may include, but are not limited to: home button, volume button, start button and lock
Determine button.
Sensor module 414 includes one or more sensors, and the state for providing various aspects for device 400 is commented
Estimate.For example, sensor module 414 can detecte the state that opens/closes of device 400, and the relative positioning of component, for example, it is described
Component is the display and keypad of device 400, and sensor module 414 can be with 400 1 components of detection device 400 or device
Position change, the existence or non-existence that user contacts with device 400,400 orientation of device or acceleration/deceleration and device 400
Temperature change.Sensor module 414 may include proximity sensor, be configured to detect without any physical contact
Presence of nearby objects.Sensor module 414 can also include optical sensor, such as CMOS or ccd image sensor, at
As being used in application.In some embodiments, which can also include acceleration transducer, gyro sensors
Device, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 416 is configured to facilitate the communication of wired or wireless way between device 400 and other equipment.Device
400 can access the wireless network based on communication standard, such as WiFi, 2G or 3G or their combination.In an exemplary implementation
In example, communication component 416 receives broadcast singal or broadcast related information from external broadcasting management system via broadcast channel.
In one exemplary embodiment, the communication component 416 further includes near-field communication (NFC) module, to promote short range communication.Example
Such as, NFC module can be based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band (UWB) technology,
Bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 400 can be believed by one or more application specific integrated circuit (ASIC), number
Number processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for executing the above method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 404 of instruction, above-metioned instruction can be executed by the processor 420 of device 400 to complete the above method.For example,
The non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk
With optical data storage devices etc..
A kind of non-transitorycomputer readable storage medium, when the instruction in the storage medium is by the processing of mobile terminal
When device executes, so that mobile terminal is able to carry out a kind of storehouse acquisition methods, this method comprises:
When the local ccf layer of program is abnormal, goal stack is created, and by specified function in program is corresponding
It deposits the address in space to be stored in the PC register of program, specified function is for obtaining program in the heap of virtual machine language layer
Stack；
Program is continued to run by goal stack and PC register, to obtain program in the storehouse of virtual machine language layer.
Optionally, when the local ccf layer of program is abnormal, goal stack is created, and by specified function in program pair
Before the address in memory headroom answered is stored in the PC register of program, further includes:
When detecting that local ccf layer generates abnormal signal, determine that local ccf layer is abnormal.
Optionally, goal stack is created, and address of the specified function in the corresponding memory headroom of program is stored in journey
Before in the PC register of sequence, further includes:
Whether determining program is in designated program state, and designated program state, which is used to indicate, has obtained program in virtual machine language
Say the storehouse of layer；
When program is not in designated program state, creation goal stack is executed, and specified function is corresponding in program
Address in memory headroom is stored in the step in the PC register of program.
Optionally, by specified function in the PC register that the address in the corresponding memory headroom of program is stored in program it
Before, further includes:
From the corresponding memory headroom of program, specified function is searched；
When finding specified function, address of the specified function in the corresponding memory headroom of program is obtained.
Optionally, program is continued to run by goal stack and PC register, to obtain program in virtual machine language layer
Storehouse, comprising:
Program is continued to run by goal stack and PC register, and during continuing to run program, is posted according to PC
Address of the specified function stored in storage in the corresponding memory headroom of program is obtained from the corresponding memory headroom of program
Specified function；
By executing specified function, to obtain program in the storehouse of virtual machine language layer.
Optionally, program is continued to run by goal stack and PC register, to obtain program in virtual machine language layer
After storehouse, further includes:
Preset address is stored in PC register；
During continuing to run program, by the preset address stored in PC register, to trigger to the different of program
Often processing.
In the embodiments of the present disclosure, when the local ccf layer of program is abnormal, goal stack is created, and by specified letter
Number is in the PC register that the address in the corresponding memory headroom of the program is stored in the program, since goal stack can be used for
Store it is subsequent continue to run used instruction, data, address etc. when the program, therefore, the program PC register store
Under the premise of having address, the program can be kept by goal stack and the PC register of the program program after reforwarding
Row, and then during continuing to run the program, the program is obtained in the storehouse of virtual machine language layer.Since the program is at this
The storehouse of virtual machine language layer would generally include program instruction, parameter used in the virtual machine language layer etc., therefore, root
According to the program in the storehouse of the virtual machine language layer, technical staff is readily determined when the local ccf layer is abnormal, and is somebody's turn to do
The calling hierarchical relationship of virtual machine language layer at this time, and then technical staff can close according to the calling level of the virtual machine language layer
System quickly analyzes and position the reason of local ccf layer is abnormal, the working efficiency for the personnel that develop skill.
Fig. 5 is a kind of block diagram of device 500 obtained for storehouse shown according to an exemplary embodiment.For example, dress
Setting 500 may be provided as a server.Referring to Fig. 5, device 500 includes processing component 522, further comprises one or more
A processor, and the memory resource as representated by memory 532, can be by the finger of the execution of processing component 522 for storing
It enables, such as application program.The application program stored in memory 532 may include it is one or more each correspond to
The module of one group of instruction.
Device 500 can also include the power management that a power supply module 526 is configured as executive device 500, and one has
Line or radio network interface 550 are configured as device 500 being connected to network and input and output (I/O) interface 558.Dress
Setting 500 can operate based on the operating system for being stored in memory 532, such as Windows ServerTM, Mac OS XTM,
UnixTM, LinuxTM, FreeBSDTM or similar.
In addition, processing component 522 is configured as executing instruction, to execute a kind of storehouse acquisition methods, this method comprises:
When the local ccf layer of program is abnormal, goal stack is created, and by specified function in program is corresponding
It deposits the address in space to be stored in the PC register of program, specified function is for obtaining program in the heap of virtual machine language layer
Stack；
Program is continued to run by goal stack and PC register, to obtain program in the storehouse of virtual machine language layer.
Optionally, when the local ccf layer of program is abnormal, goal stack is created, and by specified function in program pair
Before the address in memory headroom answered is stored in the PC register of program, further includes:
When detecting that local ccf layer generates abnormal signal, determine that local ccf layer is abnormal.
Optionally, goal stack is created, and address of the specified function in the corresponding memory headroom of program is stored in journey
Before in the PC register of sequence, further includes:
Whether determining program is in designated program state, and designated program state, which is used to indicate, has obtained program in virtual machine language
Say the storehouse of layer；
When program is not in designated program state, creation goal stack is executed, and specified function is corresponding in program
Address in memory headroom is stored in the step in the PC register of program.
Optionally, by specified function in the PC register that the address in the corresponding memory headroom of program is stored in program it
Before, further includes:
From the corresponding memory headroom of program, specified function is searched；
When finding specified function, address of the specified function in the corresponding memory headroom of program is obtained.
Optionally, program is continued to run by goal stack and PC register, to obtain program in virtual machine language layer
Storehouse, comprising:
Program is continued to run by goal stack and PC register, and during continuing to run program, is posted according to PC
Address of the specified function stored in storage in the corresponding memory headroom of program is obtained from the corresponding memory headroom of program
Specified function；
By executing specified function, to obtain program in the storehouse of virtual machine language layer.
Optionally, program is continued to run by goal stack and PC register, to obtain program in virtual machine language layer
After storehouse, further includes:
Preset address is stored in PC register；
During continuing to run program, by the preset address stored in PC register, to trigger to the different of program
Often processing.
In the embodiments of the present disclosure, when the local ccf layer of program is abnormal, goal stack is created, and by specified letter
Number is in the PC register that the address in the corresponding memory headroom of the program is stored in the program, since goal stack can be used for
Store it is subsequent continue to run used instruction, data, address etc. when the program, therefore, the program PC register store
Under the premise of having address, the program can be kept by goal stack and the PC register of the program program after reforwarding
Row, and then during continuing to run the program, the program is obtained in the storehouse of virtual machine language layer.Since the program is at this
The storehouse of virtual machine language layer would generally include program instruction, parameter used in the virtual machine language layer etc., therefore, root
According to the program in the storehouse of the virtual machine language layer, technical staff is readily determined when the local ccf layer is abnormal, and is somebody's turn to do
The calling hierarchical relationship of virtual machine language layer at this time, and then technical staff can close according to the calling level of the virtual machine language layer
System quickly analyzes and position the reason of local ccf layer is abnormal, the working efficiency for the personnel that develop skill.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (11)
1. a kind of storehouse acquisition methods, which is characterized in that the described method includes:
When the local ccf layer of program is abnormal, goal stack is created, and by specified function in described program is corresponding
It deposits the address in space to be stored in the program counter PC register of described program, the specified function is for obtaining the journey
For sequence in the storehouse of virtual machine language layer, the goal stack, which is used to store, continues to run used instruction, number when described program
According to and address；
Described program is continued to run by the goal stack and the PC register, and in the process for continuing to run described program
In, according to address of the specified function stored in the PC register in the corresponding memory headroom of described program, from institute
It states in the corresponding memory headroom of program, obtains the specified function, by executing the specified function, exist to obtain described program
The storehouse of the virtual machine language layer.
2. the method as described in claim 1, which is characterized in that the creation goal stack, and by specified function in the journey
Before address in the corresponding memory headroom of sequence is stored in the PC register of described program, further includes:
Judge whether described program is in designated program state, the designated program state, which is used to indicate, have been obtained described program and exist
The storehouse of the virtual machine language layer；
When described program is not in designated program state, the creation goal stack is executed, and by specified function in the journey
Address in the corresponding memory headroom of sequence is stored in the step in the PC register of described program.
3. the method as described in claim 1, which is characterized in that it is described by specified function in the corresponding memory headroom of described program
In address be stored in the PC register of described program before, further includes:
From the corresponding memory headroom of described program, the specified function is searched；
When finding the specified function, address of the specified function in the corresponding memory headroom of described program is obtained.
4. the method as described in claim 1-3 any claim, which is characterized in that described to pass through the goal stack and institute
It states PC register and continues to run described program, to obtain described program after the storehouse of the virtual machine language layer, further includes:
Preset address is stored in the PC register；
During continuing to run described program, by the preset address stored in the PC register, to trigger pair
The abnormality processing of described program.
5. the method as described in claim 1, which is characterized in that described when the local ccf layer of program is abnormal, creation
Goal stack, and address of the specified function in the corresponding memory headroom of described program is stored in the PC register of described program
In before, further includes:
When detecting that the local ccf layer generates abnormal signal, determine that the local ccf layer is abnormal.
6. a kind of storehouse acquisition device, which is characterized in that described device includes:
Creation module, for creating goal stack, and by specified function described when the local ccf layer of program is abnormal
Address in the corresponding memory headroom of program is stored in the program counter PC register of described program, and the specified function is used
In obtaining described program in the storehouse of virtual machine language layer, the goal stack is made when continuing to run described program for storing
Instruction, data and address；
Module is run, for continuing to run described program by the goal stack and the PC register, and is being continued to run
During described program, according to the specified function stored in the PC register in the corresponding memory headroom of described program
In address obtain the specified function from the corresponding memory headroom of described program, by executing the specified function, come
Described program is obtained in the storehouse of the virtual machine language layer.
7. device as claimed in claim 6, which is characterized in that described device further include:
Judgment module, for judging whether described program is in designated program state, the designated program state is used to indicate
Described program is obtained in the storehouse of the virtual machine language layer；
First trigger module, for when described program is not in designated program state, triggering the creation module creation target
Storehouse, and by specified function in the PC register that the address in the corresponding memory headroom of described program is stored in described program.
8. device as claimed in claim 6, which is characterized in that described device further include:
Searching module, for searching the specified function from the corresponding memory headroom of described program；
Module is obtained, for when finding the specified function, obtaining the specified function in the corresponding memory of described program
Address in space.
9. the device as described in claim 6-8 any claim, which is characterized in that described device further include:
Storage module, for preset address to be stored in the PC register；
Second trigger module, for during continuing to run described program, described in being stored in the PC register
Preset address, to trigger the abnormality processing to described program.
10. device as claimed in claim 6, which is characterized in that described device further include:
Detection module, for when detecting that the local ccf layer generates abnormal signal, determining that the local ccf layer occurs
It is abnormal.
11. a kind of storehouse acquisition device, which is characterized in that described device includes:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
When the local ccf layer of program is abnormal, goal stack is created, and by specified function in described program is corresponding
It deposits the address in space to be stored in the program counter PC register of described program, the specified function is for obtaining the journey
For sequence in the storehouse of virtual machine language layer, the goal stack, which is used to store, continues to run used instruction, number when described program
According to and address；
Described program is continued to run by the goal stack and the PC register, and in the process for continuing to run described program
In, according to address of the specified function stored in the PC register in the corresponding memory headroom of described program, from institute
It states in the corresponding memory headroom of program, obtains the specified function, by executing the specified function, exist to obtain described program
The storehouse of the virtual machine language layer.
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| CN108062257A (en) * | 2017-12-28 | 2018-05-22 | 北京奇虎科技有限公司 | A kind of method and system for handling stack information |
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