US5737521A
Expired / Lapsed
US
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Tracer system for analyzing errors in running real-time systems
Assignee: Siemens AG
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Filing: 1994-09-20
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Granted: 1998-04-07
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Expires: 2014-09-20
Abstract
Abstract PCT No. PCT/DE94/01093 Sec. 371 Date Mar. 21, 1996 Sec. 102(e) Date Mar. 21, 1996 PCT Filed Sep. 20, 1994 PCT Pub. No. WO95/09396 PCT Pub. Date Apr. 6, 1995A tracer system for analyzing errors of programs in running real-time systems. An activation device effects execution of predetermined functions at predetermined program points that are trace points. An executive device control operational sequence of a tracing process and instigates an immediate continuation of a attested program after execution of the functions at a trace point. An input for inputting trace points into the real-time system and for inputting associated functions during execution of the real-time system. A generating device for generating during program execution trace routines for execution of the predetermined functions and also for assigning memory areas for receiving data determined by the trace routines.
Inventors
- 👤 Ulrich Kleber
- 👤 Gerhard Goller
- 👤 Jorg Neuhoff
- 👤 Hans-Jorg Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:17
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/36; G06F11/362; G06F11/3636
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
A tracer system for analyzing errors of programs in running real-time systems, comprising: a) activation device which effects execution of predetermined functions at predetermined program points that are trace points; b) an executive device, which controls operational sequence of a tracing process and instigates an immediate continuation of a attested program after execution of the functions at a trace point; c) an input, which makes possible the device for inputting trace points into the real-time system and for inputting associated functions during execution of the real-time system; and d) a generating device for generating during program execution trace routines for execution of the predetermined functions and also for assigning memory areas for receiving data determined by the trace routines.
Claim 2
Dependent Claim
119 words
A tracer system for analyzing errors of programs in running real-time systems, comprising: a) activation device which effects execution of predetermined functions at predetermined program points that are trace points; b) an executive device, which controls operational sequence of a tracing process and instigates an immediate continuation of a attested program after execution of the functions at a trace point; c) an input, which makes possible the device for inputting trace points into the real-time system and for inputting associated functions during execution of the real-time system; and d) a generating device for generating during program execution trace routines for execution of the predetermined functions and also for assigning memory areas for receiving data determined by the trace routines.
Claim 3
Dependent Claim
55 words
The tracer system as claimed in claim 1, wherein the tracer system further comprises a continuation device which generates for each trace point a program for simulation of a last original instruction, this program including a return address to the tested program and being started by the executive device after execution of the trace routine.
Claim 4
Dependent Claim
43 words
The tracer system as claimed in claim 1, wherein the activation device codes a trace point number into rerouting instruction to be introduced the trace point number serves as an index for management data, required by the executive device, of the trace point.
Claim 5
Dependent Claim
145 words
A tracer system for analyzing errors of programs in running real-time systems, comprising: a) activation device which effects execution of predetermined functions at predetermined program points that are trace points; b) an executive device, which controls operational sequence of a tracing process and instigates an immediate continuation of a attested program after execution of the functions at a trace point; c) an input for inputting trace points into the real-time system and for inputting associated functions during execution of the real-time system; d) a generating device for generating during program execution trace routines for execution of the predetermined functions and also for assigning memory areas for receiving data determined by the trace routines; and a monitoring device for monitoring how heavily the tracer system loads the real-time system during the tracing process, and for deactivating the tracing process if a predetermined loading threshold is exceeded.
Claim 6
Dependent Claim
145 words
A tracer system for analyzing errors of programs in running real-time systems, comprising: a) activation device which effects execution of predetermined functions at predetermined program points that are trace points; b) an executive device, which controls operational sequence of a tracing process and instigates an immediate continuation of a attested program after execution of the functions at a trace point; c) an input for inputting trace points into the real-time system and for inputting associated functions during execution of the real-time system; d) a generating device for generating during program execution trace routines for execution of the predetermined functions and also for assigning memory areas for receiving data determined by the trace routines; and a monitoring device for monitoring how heavily the tracer system loads the real-time system during the tracing process, and for deactivating the tracing process if a predetermined loading threshold is exceeded.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-04-06 | 2001-10-06 | 2002-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-06 | 2005-10-06 | 2006-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-06 | 2009-10-06 | 2010-04-07 | $7700.00 | Window Closed / Lapsed |