From: "Maciej W. Rozycki" <macro@mips.com>
To: Alexander Viro <viro@zeniv.linux.org.uk>,
James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>,
<linux-fsdevel@vger.kernel.org>, <linux-mips@linux-mips.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 0/3] MIPS: DSP ASE regset support
Date: Tue, 15 May 2018 23:32:11 +0100 [thread overview]
Message-ID: <alpine.DEB.2.00.1804301557320.11756@tp.orcam.me.uk> (raw)
Hi,
For years, quite oddly, we have been missing DSP ASE register state from
core files. These days regsets are used to define what goes into a core
file, so here's a change adding one.
As a side effect ptrace(2) can now also access this regset, however no
complementing client implementation has been made. Eventually that'll
have to change though so that DSP ASE registers can be correctly accessed
in n32 processes, which suffer from ptrace(2) 32-bit data types truncating
contents exchanged by PTRACE_PEEKUSR and PTRACE_POKEUSR requests with
64-bit registers and no means defined to access partial registers via this
API.
In the course of this implementation I came across two bugs affecting the
area being updated and hence this has become a small patch series with the
audience wider than originally expected.
See individual commit descriptions for the details of changes made.
NB there is no strict functional dependency between 1/3 and 2/3-3/3, so
the order of commits does not have to be preserved as far as these two
subsets are concerned. However 3/3 does trigger the problem addressed
with 1/3 (and gracefully handles it), hence the grouping in a series.
Please apply.
Maciej
next reply other threads:[~2018-05-15 22:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-15 22:32 Maciej W. Rozycki [this message]
2018-05-15 22:32 ` [PATCH 1/3] binfmt_elf: Respect error return from `regset->active' Maciej W. Rozycki
2018-06-29 17:13 ` Paul Burton
2018-07-16 5:44 ` Maciej W. Rozycki
2018-05-15 22:33 ` [PATCH 2/3] MIPS: Correct the 64-bit DSP accumulator register size Maciej W. Rozycki
2018-05-15 22:34 ` [PATCH 3/3] MIPS: Add DSP ASE regset support Maciej W. Rozycki
2018-07-19 20:56 ` [PATCH 0/3] MIPS: " Paul Burton
2018-07-19 21:25 ` Maciej W. Rozycki
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.DEB.2.00.1804301557320.11756@tp.orcam.me.uk \
--to=macro@mips.com \
--cc=jhogan@kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@linux-mips.org \
--cc=ralf@linux-mips.org \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).