From: "fche at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sources.redhat.com
Subject: [Bug uprobes/10836] uprobes-provided pt_regs* are unreliable
Date: Tue, 27 Oct 2009 19:17:00 -0000 [thread overview]
Message-ID: <20091027191654.21991.qmail@sourceware.org> (raw)
In-Reply-To: <20091023162529.10836.fche@redhat.com>
------- Additional Comments From fche at redhat dot com 2009-10-27 19:16 -------
irc transcript:
mjw So, for syscall things, like getting at the arguments, we can use asm/syscall.h
mjw But that is only enough for syscall related callbacks isn't it?
mjw For anything else, like uprobes, we need to go through linux/regset.h
mjw and some arch specific mapping of the regsets to arch specific register
values
roland i think instruction_pointer(regs) and user_stack_pointer(regs) can always
be used
roland for other particular things where you know arch-specifically that the reg
is ok you can use it
roland but yes, the general case is user_regset
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10836
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next prev parent reply other threads:[~2009-10-27 19:17 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-23 16:25 [Bug uprobes/10836] New: " fche at redhat dot com
2009-10-27 11:44 ` [Bug uprobes/10836] " srikar at linux dot vnet dot ibm dot com
2009-10-27 11:45 ` srikar at linux dot vnet dot ibm dot com
2009-10-27 12:27 ` fche at redhat dot com
2009-10-27 18:40 ` roland at gnu dot org
2009-10-27 19:17 ` fche at redhat dot com [this message]
2009-10-28 12:29 ` mjw at redhat dot com
2009-10-28 16:53 ` jkenisto at us dot ibm dot com
2009-10-28 16:56 ` fche at redhat dot com
2009-10-28 16:59 ` fche at redhat dot com
2009-10-28 18:22 ` roland at gnu dot org
2009-10-29 6:20 ` ananth at in dot ibm dot com
2009-10-29 14:29 ` fche at redhat dot com
2009-11-05 13:57 ` fche at redhat dot com
2009-11-30 20:36 ` fche at redhat dot com
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