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Message-Id: <20191011000609.29728-26-keescook@chromium.org>
Date: Thu, 10 Oct 2019 17:06:05 -0700
From: Kees Cook <keescook@...omium.org>
To: Borislav Petkov <bp@...en8.de>
Cc: Kees Cook <keescook@...omium.org>,
Rick Edgecombe <rick.p.edgecombe@...el.com>,
Dave Hansen <dave.hansen@...ux.intel.com>,
Andy Lutomirski <luto@...nel.org>,
Arnd Bergmann <arnd@...db.de>,
Michael Ellerman <mpe@...erman.id.au>,
Heiko Carstens <heiko.carstens@...ibm.com>,
Will Deacon <will@...nel.org>, linux-arch@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linuxppc-dev@...ts.ozlabs.org, linux-alpha@...r.kernel.org,
linux-ia64@...r.kernel.org, linux-s390@...r.kernel.org,
linux-c6x-dev@...ux-c6x.org,
Yoshinori Sato <ysato@...rs.sourceforge.jp>,
Michal Simek <monstr@...str.eu>, linux-parisc@...r.kernel.org,
linux-xtensa@...ux-xtensa.org, x86@...nel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 25/29] xtensa: Move EXCEPTION_TABLE to RO_DATA segment
Since the EXCEPTION_TABLE is read-only, collapse it into RO_DATA.
Signed-off-by: Kees Cook <keescook@...omium.org>
---
arch/xtensa/kernel/vmlinux.lds.S | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index bdbd7c4056c1..0043d5858f14 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -14,6 +14,8 @@
* Joe Taylor <joe@...silica.com, joetylr@...oo.com>
*/
+#define RO_EXCEPTION_TABLE_ALIGN 16
+
#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
#include <asm/thread_info.h>
@@ -130,7 +132,6 @@ SECTIONS
.fixup : { *(.fixup) }
- EXCEPTION_TABLE(16)
/* Data section */
_sdata = .;
--
2.17.1
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