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From: Mark Johnston <markj@FreeBSD.org>
Date: Wed, 16 Sep 2020 13:51:47 +0000 (UTC)
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Subject: svn commit: r365796 - head/sys/conf
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X-List-Received-Date: Wed, 16 Sep 2020 13:51:48 -0000
Author: markj
Date: Wed Sep 16 13:51:47 2020
New Revision: 365796
URL: https://svnweb.freebsd.org/changeset/base/365796
Log:
Move PLTs to the beginning of amd64 kernel modules.
As with .text, the aim is to ensure that executable sections are
segregated from the rest, to avoid creation of writeable and executable
mappings. Recent versions of LLVM emit a PLT in firmware modules.
Reviewed by: kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D26444
Modified:
head/sys/conf/ldscript.kmod.amd64
Modified: head/sys/conf/ldscript.kmod.amd64
==============================================================================
--- head/sys/conf/ldscript.kmod.amd64 Wed Sep 16 13:46:58 2020 (r365795)
+++ head/sys/conf/ldscript.kmod.amd64 Wed Sep 16 13:51:47 2020 (r365796)
@@ -34,6 +34,10 @@
SECTIONS
{
+ .plt :
+ {
+ *(.plt)
+ }
.text :
{
*(.text .text.*)