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Re: break of close loop

From: Simon Richter <Simon dot Richter at hogyros dot de>
To: Dave Korn <dave dot korn at artimi dot com>
Cc: 'Daniel Jacobowitz' <drow at false dot org>,'Efim Monjak' <ymonyak at lipowsky dot de>, gdb at sources dot redhat dot com
Date: Fri, 04 Nov 2005 16:18:57 +0100
Subject: Re: break of close loop
Openpgp: url=http://www.hogyros.de/simon.asc
References: <SERRANObieLYCT4aJ6p00000174@SERRANO.CAM.ARTIMI.COM>

Hi,

Dave Korn wrote:

  The stub is probably implemented by placing a temp breakpoint immediately
after the instruction to be tested, but has negelected the fact that to handle
jumps you may need to place the temp breakpoint somewhere _other_ than
immediately after the instruction,

The question at hand appears to be breakpoints placed on top of the instruction being stepped, as the instruction steps back to itself. This is especially common on architectures with a dedicated "decrement and jump if not zero" instruction.

Simon

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Follow-Ups:
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References:
- RE: break of close loop
  - From: Dave Korn

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