Interface and stub generation for code distribution and synthesis

• US 7,155,702 B2
• Filed: 09/13/2001
• Issued: 12/26/2006
• Est. Priority Date: 09/13/2001
• Status: Expired due to Term

• Current Assignee: Axalto Incorporated (Thales SA)
• Original Assignee: Axalto SA (Thales SA)
• Inventors: Montgomery, Michael, Krishna, Ksheerabdhi
• Primary Examiner(s): Dam, Tuan
• Assistant Examiner(s): RUTTEN, JAMES D
• Application Number:
  US09/951,761
• Publication Number:
  US 20030051233A1
• Time in Patent Office: 1,930 Days
• Field of Search: 717/108, 717/137, 717/140, 717/164, 719/315, 719/328
• US Class Current: 717/108
• CPC Class Codes: G06F 8/30 Creation or generation of source code
• CPC Class Codes: G06F 8/447 Target code generation
• CPC Class Codes: G06F 9/4492 Inheritance

Abstract

A first software program is capable of being referenced by a second software program. For compiling the second program, information, including an interface definition, is generated by a converter for the first program. Also, a generator is provided for generating first source code from the interface definition, so that second source code may be developed and the second program may be compiled from the first and second source code.

Claims

1. A method for creating interface information for interfacing a smart card library to a smart card software program, the method comprising the steps of:

a) generating, by a converter processing a smart card library source code program, an augmented export file having token assignments required by an on-card linker and information useful to generate an interface definition for the smart card library; and

b) operating an interface generator for generating a library interface source code file for the smart card library from the augmented export file, suitable for input to a compiler, so that source code for the smart card software program may be compiled from the library interface source code file and the source code for the smart card software program.

2. The method of claim 1, wherein step a) comprises generating export information for the augmented export file and the method comprises the step of:

operating a converter to generate an executable version of the smart card software program responsive to processing the certain file and the compiled second software program.

3. The method of claim 1, wherein the smart card library source code program has classes and the information useful to generate an interface definition includes indications of immediate super classes for respective ones of the classes.

4. The method of claim 3, wherein the immediate super class for a class is indicated in an ordered list of classes.

5. The method of claim 1, wherein the smart card library source code program has classes and step a) comprises generating export information for the augmented export file including a list of super classes of the classes, and wherein the information useful to generate an interface definition includes immediate super class indications, the immediate super class indications being provided by an ordering of the list of super classes.

6. The method of claim 1, wherein the smart card library source code program has methods and the information useful to generate an interface definition includes indications of whether any of the methods are overridden.

7. The method of claim 6, wherein the indications of whether any of the methods that are overridden include respective flags.

8. The method of claim 1, wherein the smart card library source code program has methods and step a) comprises generating export information for the augmented export file including a certain set of access flags, and wherein information usefUl to generate the interface definition has indications of whether respective ones of the methods are overridden included as respective flags in the certain set.

9. The method of claim 1, wherein the smart card library source code program has fields, and the information usefUl to generate an interface definition includes an indication of whether any of the fields are overridden.

10. The method of claim 9, wherein the indications of whether any of the fields that are overridden include respective flags.

11. The method of claim 1, wherein the smart card library source code has fields and step a) comprises generating export information for the augmented export file including a certain set of access flags, and wherein the information useful to generate an interface definition has indications of whether respective fields that are overridden included as respective flags in the certain set.

12. The method of claim 1, wherein the information useful to generate an interface definition includes indications of types of exceptions.

13. A method for generating an augmented export file having information useful to generate interface definitions suitable for input to a compiler and export information for a smart card library source code program for linking with a smart card software program thereby producing a software program for loading onto a smart card wherein the export information includes information required to link the smart card library source code program and the smart card software program for execution on a smart card, the method comprising the steps of:

a) generating, by a converter processing a smart card library source code the export file having token assignments required by an on-card linker and information useful to generate an interface definition for the smart card library source code including;

ordering a list of classes of the smart card library source code and appending that ordered list to the export information contained in the export file to provide an indication of an immediate super class of the classes, and

b) operating an interface generator for generating an interface suitable for input to a compiler for the smart card library source code from the export file, so that smart card software program source code may be developed and the smart card program may be compiled from the interface generated for the smart card library source code and the source code for the smart card software program.

14. The method of claim 13, comprising the step of:

adding first flags to a certain flag space of the export information, wherein the first flags indicate whether respective methods of the smart card library source code are overridden.

15. The method of claim 14, comprising the step of:

adding second flags to a certain flag space of the export information, wherein the second flags indicate whether respective fields of the smart card library source code are overridden.

16. The method of claim 15, comprising the step of:

adding indications of types of exceptions to the export information.

17. A computer program product stored in a computer storage media, the computer program being operable for distributing information for interfacing to a software program, the computer program product comprising:

first instructions for directing a computerized device to generate, by a converter processing a smart card library source code, an augmented export file having token assignments required by an on-card linker and information useful to generate an interface definition for the smart card library source code suitable for input to a compiler; and

second instructions for directing the computerized device to generate the interface definition for the smart card library from the augmented export file, so that a smart card software program source code may be developed and the smart card software program may be compiled from the interface definition generated for the smart card library source code and the source code for the smart card software program.

18. The computer program product of claim 17, wherein the computer program product comprises:

third instructions for directing the computerized device to generate an executable version of the smart card software program responsive to processing the augmented export file and the compiled second software program.

19. The computer program product of claim 17, wherein the smart card library source code has classes and the information useful to generate an interface definition includes indications of immediate super classes for respective ones of the classes.

20. The computer program product of claim 19, wherein the immediate super class for a class is indicated in an ordered list of super classes.

21. The computer program product of claim 17, wherein the card library source code is one or more library classes and the first instructions comprise instructions for generating export information for the augmented export file including a list of super classes of the classes, and wherein the information useful to generate an interface definition includes immediate super class indications, the immediate super class indications being provided by an ordering of the list of super classes.

22. The computer program product of claim 17, wherein the smart card library source code has methods and the information useful to generate an interface definition includes indications of whether any of the methods are overridden.

23. The computer program product of claim 22, wherein the indications of whether any of the methods are overridden include respective flags.

24. The computer program product of claim 17, wherein the smart card library source code has methods and the first instructions comprise instructions for generating export information for the augmented export file including a certain set of access flags, and wherein the information useful to generate an interface definition has indications of whether respective ones of the methods are overridden included as respective flags in the certain set.

25. The computer program product of claim 17, wherein the smart card library source code has fields, and the information useful to generate interface definition includes an indication of whether any of the fields are overridden.

26. The computer program product of claim 25, wherein the indications of whether any of the fields that are overridden include respective flags.

27. The computer program product of claim 17, wherein the smart card library source code has fields and the first instructions comprise instructions for generating export information for the augmented export file including a certain set of access flags, and wherein the information useful to generate an interface definition has indications of whether respective ones of the fields are overridden included as respective flags in the certain set.

28. The computer program product of claim 17, wherein the information useful to generate an interface definition includes indications of types of exceptions.

29. A computer program product stored in a computer storage media, the computer program being operable for generating an augmented export file having information useful for generating an interface definition suitable for input to a compiler and export information for a smart card library source code for linking with a smart card software program thereby producing a software program for loading onto a smart card wherein the export information includes information required to link the smart card library and the smart card software program for execution on a smart card, the computer program product comprising:

first instructions directing a computerized device to generate, by a converter processing a smart card library source code, an augmented export file having token assignments required by an on-card linker and information useful to generate an interface definition for the first smart card software program, including;

instructions to order a list of classes appended to the export information contained in the export file, to provide an indication of super classes of the classes; and

interface generator instructions for causing the computerized device to generate an interface, suitable for input to a compiles for the smart card library source code from the augmented export file, so that smart card software program source code may be developed and the smart card software program may be compiled from the interface generated for the smart card library source code and the source code for the smart card software program.

30. The computer program product of claim 29 comprising:

second instructions for adding first flags to a certain flag space of the export information, wherein the first flags indicate whether respective methods of the first software program are overridden.

31. The computer program product of claim 30 comprising:

third instructions for adding second flags to a certain flag space of the export information, wherein the second flags indicate whether respective fields of the first software program are overridden.

32. The computer program product of claim 31 comprising:

fourth instructions for adding indications of types of exceptions to the export information.

33. An apparatus comprising:

a processor;

a memory coupled to the processor for storing instructions for controlling the processor, wherein the processor is operative with the instructions to perform the steps of;

a) generating, by a converter processing a smart card library source code, an augmented export file having token assignments required by an on-card linker and information useful to generate an interface definition for a smart card library; and

b) operating an interface generator for generating an interface, suitable for input to a compiler, for the smart card library source code from the augmented export file, so that smart card software program source code may be developed and the smart card software program may be compiled from the interface generated for the smart card library source code and the source code for the smart card software program.

34. The apparatus of claim 33, wherein step a) comprises generating export information for the certain file, and the processor is operative with the instructions to perform the step of:

operating a converter to generate an executable version of the smart card software program responsive to processing the interface definition and augmented export file and the compiled smart card software program.

35. The apparatus of claim 33, wherein the smart card library source code has classes and the information useful to generate an interface definition includes indications of immediate super classes for respective ones of the classes.

36. The apparatus of claim 35, wherein the immediate super class for a class is indicated in an ordered list of classes.

37. The apparatus of claim 33, wherein the smart card library source code has classes and step a) comprises generating export information for the augmented export file including a list of super classes of the classes, and wherein the information useful to generate an interface definition has immediate super class indications, the immediate super class indications being provided by an ordering of the list of super classes.

38. The apparatus of claim 33, wherein the smart card library source code has methods and the information useful to generate interface definition includes indications of whether any of the methods are overridden.

39. The apparatus of claim 38, wherein the indications of whether any of the methods that are overridden include respective flags.

40. The apparatus of claim 33, wherein the smart card library source code has methods and step a) comprises wherein the export information for the augmented export file includes a certain set of access flags, and wherein the information useful to generate an interface definition has indications of whether respective ones of the methods are overridden included as respective flags in the certain set.

41. The apparatus of claim 33, wherein the smart card library source code has fields, and the information useful to generate an interface definition includes an indication of whether ones of the fields are overridden.

42. The apparatus of claim 41, wherein the indications of whether ones of the fields are overridden include respective flags.

43. The apparatus of claim 33, wherein the smart card library source code has fields and step a) comprises wherein the export information for the certain file includes a certain set of access flags, and wherein the information useful to generate an interface definition has indications of whether respective ones of the fields that are overridden included as respective flags included in the certain set.

44. The apparatus of claim 33, wherein the information useful to generate an interface definition includes indications of types of exceptions.

45. An apparatus for generating an export file having information useful to generate an interface definition suitable for input to a compiler and export information for a smart card software program, the apparatus comprising:

a processor;

a memory coupled to the processor for storing instructions for controlling the processor, wherein the processor is operative with the instructions to perform the step of;

a) generating, by a converter processing a smart card library, an augmented export file having token assignments required by an on-card linker and information useful to generate an interface definition for the smart card library, including;

ordering a list of classes included in the export information contained in an export file, to provide an indication of an immediate super class; and

b) operating an interface generator for generating an interface suitable for input to a compiler for the smart card library from the augmented export file, so that source code may be developed for a smart card program may be compiled from the interface generated for the smart card library and the source code for the smart card program.

46. The apparatus of claim 45, wherein the processor is operative with the instructions to perform the step of:

adding first flags to a certain flag space of the export information, wherein the first flags indicate whether respective methods of the smart card library are overridden.

47. The apparatus of claim 46, wherein the processor is operative with the instructions to perform the step of:

adding second flags to a certain flag space of the export information, wherein the second flags indicate whether respective fields of the smart card library are overridden.

48. The apparatus of claim 47, wherein the processor is operative with the instructions to perform the step of:

adding indications of types of exceptions to the export information.