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Re: [RFC] Global breakpoints

From: David Daney <ddaney at caviumnetworks dot com>
To: Stan Shebs <stan at codesourcery dot com>
Cc: gdb at sourceware dot org
Date: Tue, 04 May 2010 16:33:47 -0700
Subject: Re: [RFC] Global breakpoints
References: <4BE0A112.8080503@codesourcery.com>

On 05/04/2010 03:34 PM, Stan Shebs wrote:
[...]


Another possible strategy is to hook into the dynamic loader, and it
has the advantage of (probably) simplifying breakpoint insertion for
library code, although it's not as clear to me how it gets GDB's
attention.

Presumably you are talking about off-loading some of the work to some sort of stub running in the process.

Could you LD_PRELOAD something that communicates with its controlling GDB via a named-pipe/UNIX domain socket? When an event of interest occurs, the stub would notify GDB, which would then attach to the process.

David Daney

References:
- [RFC] Global breakpoints
  - From: Stan Shebs

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