From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kees Cook Subject: [PATCH v2 24/29] powerpc: Move EXCEPTION_TABLE to RO_DATA segment Date: Thu, 10 Oct 2019 17:06:04 -0700 Message-ID: <20191011000609.29728-25-keescook@chromium.org> References: <20191011000609.29728-1-keescook@chromium.org> Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=OvLPSIr20MO1GrkJ0OvwvGngd4/e51+GSaoElj9X+Gc=; b=Vo/YkX68H3JSVeYxOg0wgKZHM0DDpLq1uGIDRlC9At7IoYDSFTbfrL3kzgv//JSf1l wfMMq2ZZ1sw3ulG7OB/Al6Lb7yhUEHFwVbMy0hx6CDWOUEDVNEPAVOGo2TBJff56wZsX 1wJpR43jEKVUBiVd5MS1y8q4VLWL+t/un7fCg= In-Reply-To: <20191011000609.29728-1-keescook@chromium.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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/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 4e7cec088c8b..8834220036a5 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 #include @@ -162,7 +163,6 @@ SECTIONS __stop__btb_flush_fixup = .; } #endif - EXCEPTION_TABLE(0) /* * Init sections discarded at runtime -- 2.17.1