Method of and apparatus for debugging multitask programs

Details Method of and apparatus for debugging multitask programs Method of and apparatus for debugging multitask programs

1995-09-13

1998-09-08

Voeltz, Emanuel Todd

Boots, shoes, and leggings

39518315, 395676, 395677, 3642755, 3642817, G06F 1130, G06F 9455

Patent

active

058058923

ABSTRACT:
An apparatus for debugging multitask programs has an input command interpreter for interpreting an inputted command, a system call issuance coder for issuing a system call from a task to be debugged which is designated by the command, a system call issuance preparator for converting a next execution address of execution environment information of the task to be debugged into an address of the system call issuance coder, and a system call issuance processor for starting the task to be debugged from a debugger monitor and issuing a system call for putting the debugger monitor into a wait state. When a command for designating and putting a desired task, such as a task B to be debugged, into the wait state is inputted from the host, the system call issuance processor processes the execution environment information of the task B with the system call issuance preparator to prepare an environment in which a system call can be issued from the task B. Thereafter, a debugger task is put into the wait state, and a queue manager of an operating system selects the designated task B, which issues a system call with a system call issuance coder and the previously prepared environment.

REFERENCES:
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patent: 5371887 (1994-12-01), Yoshida et al.
patent: 5379427 (1995-01-01), Hiroshima
patent: 5615332 (1997-03-01), Yamamoto
Myer, B., "Setting Breakpoints in a Windows NT Debugger", Windows-DOS Developer's Journal v5 n6 p.13(18)., Jun. 1994.

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