[tip: x86/build] powerpc: Move EXCEPTION_TABLE to RO_DATA segment

* [tip: x86/build] powerpc: Move EXCEPTION_TABLE to RO_DATA segment
       [not found] <20191029211351.13243-25-keescook@chromium.org>
@ 2019-11-05  9:27 ` tip-bot2 for Kees Cook
  0 siblings, 0 replies; only message in thread
From: tip-bot2 for Kees Cook @ 2019-11-05  9:27 UTC (permalink / raw)
  To: linux-tip-commits
  Cc: Kees Cook, Borislav Petkov, Andy Lutomirski, Arnd Bergmann,
	Dave Hansen, linux-alpha, linux-arch, linux-arm-kernel,
	linux-c6x-dev, linux-ia64, linux-s390, linuxppc-dev,
	Michael Ellerman, Michal Simek, Rick Edgecombe,
	Segher Boessenkool, Will Deacon, x86-ml, Yoshinori Sato,
	Ingo Molnar, Borislav Petkov, linux-kernel

The following commit has been merged into the x86/build branch of tip:

Commit-ID:     4e9e559a0385930649c1c9cad703d475ee030206
Gitweb:        https://git.kernel.org/tip/4e9e559a0385930649c1c9cad703d475ee030206
Author:        Kees Cook <keescook@chromium.org>
AuthorDate:    Tue, 29 Oct 2019 14:13:46 -07:00
Committer:     Borislav Petkov <bp@suse.de>
CommitterDate: Mon, 04 Nov 2019 18:30:13 +01:00

powerpc: 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@chromium.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Rick Edgecombe <rick.p.edgecombe@intel.com>
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Will Deacon <will@kernel.org>
Cc: x86-ml <x86@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: https://lkml.kernel.org/r/20191029211351.13243-25-keescook@chromium.org
---
 arch/powerpc/kernel/vmlinux.lds.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 4e7cec0..8834220 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -7,6 +7,7 @@
 
 #define BSS_FIRST_SECTIONS *(.bss.prominit)
 #define EMITS_PT_NOTE
+#define RO_EXCEPTION_TABLE_ALIGN	0
 
 #include <asm/page.h>
 #include <asm-generic/vmlinux.lds.h>
@@ -162,7 +163,6 @@ SECTIONS
 		__stop__btb_flush_fixup = .;
 	}
 #endif
-	EXCEPTION_TABLE(0)
 
 /*
  * Init sections discarded at runtime

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