From: "John S. Yates, Jr." <jyates@netezza.com>
To: "gdb" <gdb@sources.redhat.com>
Subject: unavailable register
Date: Thu, 15 May 2003 16:53:00 -0000 [thread overview]
Message-ID: <049501c31b02$61f4e5f0$1400a8c0@astral> (raw)
I have been implementing thread support in a remote
stub. My initial implementation provided only the
values of the registers.
I have now implemented register modification. One
small glitch is that some registers are either
architecturally readonly (eg: .sdata base register)
or simple do not exist (eg: a blocking call into the
scheduler does not save those registers that the
calling conventions indicate are destroyable).
My implementation of the 'P' message understands
these issue and returns a failure where appropriate.
Unfortunately, gdb's register cache seems to get
updated before the 'P' message returns success.
/john
--
John S. Yates, Jr. 508 665-6897 (voice)
Netezza Inc 508 665-6811 (fax)
200 Crossing Blvd. Framingham, MA 01701
reply other threads:[~2003-05-15 16:53 UTC|newest]
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