Method And Systems For Invoking An Advice Operation Associated With A Joinpoint
Methods and systems are described for invoking an advice operation associated with a joinpoint. In one embodiment, the method includes identifying, based on a pointcut specification included in an aspect specification, a joinpoint in a machine code program component. The joinpoint includes a machine code instruction. The method further includes identifying, based on an advice specification included in the aspect specification, an advice operation included in a machine code program component. The method still further includes detecting an access to the machine code instruction in the joinpoint for execution by a processor. The method also includes invoking the advice operation in association with detecting the access to the machine code instruction.
1 . A method for invoking an advice operation associated with a joinpoint, the method comprising:
identifying, based on a pointcut specification included in an aspect specification, a joinpoint in a machine code program component, the joinpoint including a machine code instruction;
identifying, based on an advice specification included in the aspect specification, an advice operation included in a machine code program component;
detecting an access to the machine code instruction in the joinpoint for execution by a processor; and
invoking the advice operation in association with detecting the access to the machine code instruction.
2 . The method of claim 1 wherein the pointcut specification conforms to a schema for specifying a pointcut specification for determining a joinpoint included in a machine code program component generated from source code written in any of a plurality of programming languages.
3 . The method of claim 1 wherein the aspect specification is specified in a first programming language and the machine code program component is generated from source code in a second programming language.
4 . The method of claim 1 wherein the machine code program component including the joinpoint is generated in a first machine code language for execution on a first processor and a machine code program component including the advice operation is generated in a second machine code language for execution on a second processor.
5 . The method of claim 1 wherein the aspect specification includes a matching criterion for identifying a joinpoint, the matching criterion based on at least one of an attribute of an addressable entity, an attribute of a relationship between a plurality of addressable entities, and an execution environment attribute.
6 . The method of claim 1 wherein the joinpoint is identified in a first instance of an addressable entity and wherein the joinpoint is not identified in a second instance of the addressable entity.
7 . The method of claim 1 further comprising associating aspect information with a processor memory location including the machine code instruction based on the aspect specification.
8 . The method of claim 7 wherein the processor memory location is identified by a processor virtual memory address included in at least one of a structured processor memory address space, a non-sequential processor memory address space, and a sequential processor memory address space.
9 . The method of claim 1 wherein claim 7 wherein a portion of the processor memory including the processor memory location is marked for detecting the access.
10 . The method of claim 1 wherein the advice specification conforms to a schema for advice specifications for identifying an advice operation included in a machine code program component generated from source code written in any of a plurality of programming languages.
11 . A system for invoking an advice operation associated with a joinpoint, the system comprising:
means for identifying, based on a pointcut specification included in an aspect specification, a joinpoint in a machine code program component, the joinpoint including a machine code instruction;
means for identifying, based on an advice specification included in the aspect specification, an advice operation included in a machine code program component;
means for detecting an access to the machine code instruction in the joinpoint for execution by a processor; and
means for invoking the advice operation in association with detecting the access to the machine code instruction.
12 . A system for invoking an advice operation associated with a joinpoint, the system comprising:
an aspect binder component configured for identifying, based on a pointcut specification included in an aspect specification, a joinpoint in a machine code program component, the joinpoint including a machine code instruction;
the aspect binder component configured for identifying, based on an advice specification included in the aspect specification, an advice operation included in a machine code program component;
an access detector component configured for detecting an access to the machine code instruction in the joinpoint for execution by a processor, and configured for invoking the advice operation in association with detecting the access to the machine code instruction.
13 . The system of claim 12 wherein the pointcut specification conforms to a schema for specifying a pointcut specification for determining a joinpoint included in a machine code program component generated from source code written in any of a plurality of programming languages.
14 . The system of claim 12 wherein the aspect specification is specified in a first programming language and the machine code program component is generated from source code in a second programming language.
15 . The system of claim 12 wherein the machine code program component including the joinpoint is generated in a first machine code language for execution on a first processor and a machine code program component including the advice operation is generated in a second machine code language for execution on a second processor.
16 . The system of claim 12 wherein the aspect binder component is configured for identifying a joinpoint based on a matching criterion included in the aspect specification, wherein the matching criterion based on at least one of an attribute of an addressable entity, an attribute of a relationship between a plurality of addressable entities, and an execution environment attribute.
17 . The system of claim 12 wherein the aspect binder component is configured for identifying the joinpoint in a first instance of an addressable entity and for not identifying the joinpoint in a second instance of the addressable entity.
18 . The system of claim 12 further comprising a memory management system component configured for associating aspect information with a processor memory location including the machine code instruction based on the aspect specification.
19 . The system of claim 18 wherein the memory management system component component is configured for identifying the processor memory location by a virtual processor memory address included in at least one of a structured processor memory address space, a non-sequential processor memory address space, and a sequential processor memory address space.
20 . The system of claim 12 wherein the access detector component is configured for marking a portion of the processor memory including the processor memory location for detecting the access.
21 . The system of claim 12 wherein the advice specification conforms to a schema for advice specifications for identifying an advice operation included in a machine code program component generated from source code written in any of a plurality of programming languages.
22 . A computer readable medium embodying a computer program, executable by a machine, for invoking an advice operation associated with a joinpoint, the computer program comprising executable instructions for:
identifying, based on a pointcut specification included in an aspect specification, a joinpoint in a machine code program component, the joinpoint including a machine code instruction;
identifying, based on an advice specification included in the aspect specification, an advice operation included in a machine code program component;
detecting an access to the machine code instruction in the joinpoint for execution by a processor; and
invoking the advice operation in association with detecting the access to the machine code instruction.