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@c
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@c  COPYRIGHT (c) 1988-2002.
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@c  On-Line Applications Research Corporation (OAR).
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@c  All rights reserved.
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@c
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@c  swarch.t,v 1.3 2002/01/17 21:47:46 joel Exp
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@c
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@chapter Software Architecture
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RTEMS/GDB host-target debugger is architectured around:
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@itemize @bullet
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@item One debugger, running on the host.
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@item One debug server, running on the target.
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@end itemize
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The host debugger communicates with the debug server using Sun RPC
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over UDP/IP (Ethernet).
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When opening a debugging session, the user takes the control over
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the entire target system. The target system is viewed as a single multi-threaded
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process.
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The debugger can observe the state of the system objects, without
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stopping the entire system. However, breakpoints and stepping affect (stop)
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the entire system.
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For a given target, only one single system debugging session is possible
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at a time.
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