From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf1-f194.google.com ([209.85.210.194]:46335 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727498AbfJKAMy (ORCPT ); Thu, 10 Oct 2019 20:12:54 -0400 Received: by mail-pf1-f194.google.com with SMTP id q5so4926721pfg.13 for ; Thu, 10 Oct 2019 17:12:54 -0700 (PDT) From: Kees Cook Subject: [PATCH v2 25/29] xtensa: Move EXCEPTION_TABLE to RO_DATA segment Date: Thu, 10 Oct 2019 17:06:05 -0700 Message-Id: <20191011000609.29728-26-keescook@chromium.org> In-Reply-To: <20191011000609.29728-1-keescook@chromium.org> References: <20191011000609.29728-1-keescook@chromium.org> Sender: linux-s390-owner@vger.kernel.org List-ID: To: Borislav Petkov Cc: Kees Cook , Rick Edgecombe , Dave Hansen , Andy Lutomirski , Arnd Bergmann , Michael Ellerman , Heiko Carstens , Will Deacon , linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-alpha@vger.kernel.org, linux-ia64@vger.kernel.org, linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Yoshinori Sato , Michal Simek , linux-parisc@vger.kernel.org, linux-xtensa@linux-xtensa.org, x86@kernel.org, linux-kernel@vger.kernel.org Since the EXCEPTION_TABLE is read-only, collapse it into RO_DATA. Signed-off-by: Kees Cook --- 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 */ +#define RO_EXCEPTION_TABLE_ALIGN 16 + #include #include #include @@ -130,7 +132,6 @@ SECTIONS .fixup : { *(.fixup) } - EXCEPTION_TABLE(16) /* Data section */ _sdata = .; -- 2.17.1