Apparatus, method, and program for breakpoint setting

• US 20030149961A1
• Filed: 02/05/2003
• Published: 08/07/2003
• Est. Priority Date: 02/07/2002
• Status: Active Grant

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Kawamoto, Takuji, Kawai, Masaki
• Granted Patent: US 7,134,115 B2
• Time in Patent Office: Days
• US Class Current: 717/129
• CPC Class Codes: G06F 11/3624 by performing operations on the source code, e.g. via a compiler
• CPC Class Codes: G06F 11/3648 using additional hardware

Abstract

Disclosed is a breakpoint setting apparatus capable of setting a breakpoint without imposing any burden on a programmer. The breakpoint setting apparatus includes an edited-line list manager 115 for managing an address of an edited line in a source code, and a breakpoint setting/disabling sub unit 106 for setting a breakpoint at the address stored in the edited-line list manager 115. The breakpoint setting apparatus automatically sets a breakpoint on each line where the programmer makes an edit without any specific instruction from the programmer.

Claims

1. A breakpoint setting apparatus comprising:

a loading unit operable to load an object code generated correspondingly to a source code;

a storing unit operable to store information showing relation between each of components constituting the source code and a corresponding location in the object code;

an acquiring unit operable to automatically acquire and store, when a specific edit is made to the source code, editing information specifying a component subjected to the specific edit; and

a setting unit operable to automatically set a breakpoint in the object code at a location corresponding to the component specified by the editing information.

2. The breakpoint setting apparatus of claim 1, wherein each component is a line constituting the source code, and each line is uniquely identified by a line number assigned thereto,

the storing unit stores the relation between each line number of the source code and a corresponding location in the object code, and

the acquiring unit acquires as the editing information a line number identifying a line, in the source code, that is subjected to the specific edit.

3. The breakpoint setting apparatus of claim 2, wherein the specific edit is deletion of a line feed character, and

the breakpoint setting apparatus further comprising an updating unit operable to update, when the source code is edited to delete a line feed character, the editing information stored in the acquiring unit so that each line number greater than the specified line number is decremented by 1.

4. The breakpoint setting apparatus of claim 2, further comprising an updating unit operable to update, when the source code is edited to add a line feed character to a top of a line, the editing information stored in the acquiring unit so that each line number not less than a line number identifying the edited line is incremented by 1.

5. The breakpoint setting apparatus of claim 2, further comprising an updating unit operable to update, when the source code is edited to add a line feed character to an end of a line, the editing information stored in the acquiring unit so that each line number greater than a line number identifying the edited line is incremented by 1.

6. The breakpoint setting apparatus of claim 2, wherein

the specific edit is addition of a line feed character to a middle of a line in the source code, and

the breakpoint setting apparatus further comprising an updating unit operable to update, when the source code is edited to add a line feed character to a middle of a line, the editing information stored in the acquiring unit so that each line number greater than the specified line number is incremented by 1, and that a line number obtained by adding 1 to the specified line number is additionally stored in the editing information.

7. The breakpoint setting apparatus of claim 2, wherein

the specific edit is a modification of a character string without any modification to a line feed character.

8. The breakpoint setting apparatus of claim 2, wherein

the source code is made up of control blocks which in turn made up of a plurality of lines,

the acquiring unit further stores block-boundary information showing boundaries of each control block, each boundary being specified by a line number, and

the setting unit sets a breakpoint in the object code at a location corresponding to a first line of each control block shown by the block-boundary information.

9. The breakpoint setting apparatus of claim 2, wherein the setting unit sets, when the editing information stored in the acquiring unit includes a plurality of consecutive line numbers, a breakpoint in the object code only at a location corresponding to a first line number of the plurality line numbers.

10. The breakpoint setting apparatus of claim 1, further generates a bug-sheet for each breakpoint set by the setting unit, and presents the generated bug-sheet to a user through a user interface, the bug-sheet including user-inputted information regarding an edit made to the source code at a component corresponding to the breakpoint.

11. The breakpoint setting apparatus of claim 10, further acquires from a debugger, upon the bug-sheet generation, a count of how many times the edited component of the source code is decoded and executed by the debugger, and presents to the user the count together with the user-inputted information.

12. The breakpoint setting apparatus of claim 1, wherein the acquiring unit stores the editing information specifying the component subjected to the specific edit only when no other editing information specifying the same component is already acquired and stored.

13. The breakpoint setting apparatus of claim 2, wherein

the acquiring unit further stores block-boundary information showing boundaries of each control block, each boundary being specified by a line number, and

the setting unit sets a breakpoint in the object code only at a location corresponding to a first specific edited line from the top of each control block.

14. A breakpoint setting method comprising:

a loading step of loading an object code generated correspondingly to a source code;

a storing step of storing information showing relation between each of components constituting the source code and a corresponding location in the object code;

an acquiring step of automatically acquiring and storing, when a specific edit is made to the source code, editing information specifying a component subjected to the specific edit; and

a setting step of automatically setting a breakpoint in the object code at a location corresponding to the component specified by the editing information.

15. A breakpoint setting program comprising:

a loading step of loading an object code generated correspondingly to a source code;

a storing step of storing information showing relation between each of components constituting the source code and a corresponding location in the object code;

an acquiring step of automatically acquiring and storing, when a specific edit is made to the source code, editing information specifying a component subjected to the specific edit; and

a setting step of automatically setting a breakpoint in the object code at a location corresponding to the component specified by the editing information.

16. In a computer system for writing and editing executable code, the improvement of an automatic breakpoint setting apparatus that can be activated during an editing/debugging operation, comprising

a storing unit operable to store a predetermined quantity of code to be edited;

a display unit operable to display at least a portion of the code to enable editing of the code by a programmer;

an acquiring unit operable to monitor any modifications to the displayed code and to automatically acquire and store the modification and location of the modification relative to the initial stored predetermined quantity of code; and

a setting unit, responsive to the acquiring unit, operable to automatically set a breakpoint in the resulting modified quantity of code indicative of the modification, whereby the computer system is enabled to provide a representation of the location and modification of the predetermined quantity of code automatically when a programmer edits the stored quantity of code without additional commands being entered by the programmer.

17. The breakpoint setting apparatus of claim 16 wherein the storing unit stores data showing a relationship between lines of source code and corresponding locations in object code and the setting unit automatically sets a breakpoint in the object code at a location corresponding to a line in the source code when the acquiring unit acquires editing information identifying a line in the source code that is modified.

18. The breakpoint setting apparatus of claim 17 further including a bug-sheet generator unit operable to generate a bug-sheet for each breakpoint set by the setting unit, and presents the generated bug-sheet to a user through a user interface, the bug-sheet including user-inputted information regarding an edit made to a line of source code corresponding to each set breakpoint.