From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>, roger.pau@citrix.com
Cc: Julien Grall <julien.grall@arm.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Jan Beulich <JBeulich@suse.com>,
Xen-devel <xen-devel@lists.xen.org>
Subject: Re: [PATCH] xen/common: Drop function calls for Xen compile/version information
Date: Tue, 17 Jan 2017 15:46:30 -0500 [thread overview]
Message-ID: <20170117204630.GC21336@char.us.oracle.com> (raw)
In-Reply-To: <17c9a588-f3fd-04b4-1843-9ae5c5d9c6cf@citrix.com>
> > Is this patch of yours that neccessary? Could at least some of the
> > functions still exist?
>
> Well. This patch is manually doing what LTO would do automatically when
> it has a cross-translation-unit view of things, and come to the
> conclusion that in all cases, inlining cross-unit will make the calling
> code shorter, and allow the functions to be elided entirely.
>
> I take it from this that noone has tried livepatching an LTO build of Xen.
Roger did build it (FreeBSD uses it), but I don't think he tried
the test-cases.
Wait, I think he may have as his patch: f8c66c2ad2efdb281e4ebf15bf329d73c4f02ce7
Author: Roger Pau Monne <roger.pau@citrix.com>
Date: Tue May 3 12:55:09 2016 +0200
xen/xsplice: add ELFOSABI_FREEBSD as a supported OSABI for payloads
implies that he did build an payload (and I remember us trying to figure
out if the issues he had been hitting were due to LTO or something else).
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next prev parent reply other threads:[~2017-01-17 20:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-16 13:04 [PATCH] xen/common: Drop function calls for Xen compile/version information Andrew Cooper
2017-01-16 13:18 ` Jan Beulich
2017-01-16 13:26 ` Andrew Cooper
2017-01-16 18:23 ` Stefano Stabellini
2017-01-16 19:44 ` Doug Goldstein
2017-01-17 18:05 ` Konrad Rzeszutek Wilk
2017-01-17 18:16 ` Andrew Cooper
2017-01-17 18:42 ` Konrad Rzeszutek Wilk
2017-01-17 19:00 ` Konrad Rzeszutek Wilk
2017-01-17 20:39 ` Andrew Cooper
2017-01-17 20:46 ` Konrad Rzeszutek Wilk [this message]
2017-01-18 10:13 ` Roger Pau Monné
2017-01-18 16:10 ` Konrad Rzeszutek Wilk
2017-01-18 16:21 ` Roger Pau Monné
2017-01-18 16:30 ` Wei Liu
2017-01-18 17:04 ` Andrew Cooper
2017-01-18 19:01 ` Doug Goldstein
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