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xen-devel
[Xen-devel] Re: [PATCH 1 of 1] x86_64: Put .note.* sections into a PT_NO
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To: |
Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [PATCH 1 of 1] x86_64: Put .note.* sections into a PT_NOTE segment in vmlinux |
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From: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
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Date: |
Tue, 22 Aug 2006 08:11:26 -0700 |
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Cc: |
Andrew Morton <akpm@xxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Virtualization <virtualization@xxxxxxxxxxxxxx>, Andi Kleen <ak@xxxxxxx>, Linux Kernel <linux-kernel@xxxxxxxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxxxxxx>, Ian Pratt <ian.pratt@xxxxxxxxxxxxx>, "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>, Christoph Lameter <clameter@xxxxxxx> |
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Wed, 23 Aug 2006 02:10:29 -0700 |
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Ian Campbell wrote:
It has been suggested to me that the notes segment should have flags 0
(i.e. not readable) since it is only used by the loader and is not used
at runtime. For now I went with a readable segment since that is what
the i386 patch uses.
Note that the PT_NOTEs segment is aliased to a part of one of the
PT_LOADs - ie, it points into the data segment. So making it -rwx would
either be ignored, or also require putting the bits into a new PT_LOAD
segment with 0 permissions, which is pretty pointless. I made it R_E
just so there was no permissions conflict, though the _E part could
probably go.
J
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