| 摘要 |
PROBLEM TO BE SOLVED: To achieve both the maintenance of the time sequence of trace data having occurred in user mode software and kernel mode software and the reduction of an overhead applied to the trace of the user mode software. SOLUTION: When user-side trace data are generated, a user-side trace control part 13 refers to user-side trace control information 7 memory-mapped to kernel-side trace control information 6 to determine whether or not it is necessary to store the trace data. When it is determined that it is necessary to store the trace data, the user-side trace control part 13 stores the user-side trace data into a kernel-side trace buffer 5 through a user-side trace output vicarious execution part 12 and a kernel-side trace output part 10. When kernel-side trace data are generated, a kernel-side trace control part 11 stores the kernel-side trace data into the kernel-side trace buffer 5 through the kernel-side trace output part 10. COPYRIGHT: (C)2008,JPO&INPIT
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