From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Hogan Subject: [PATCH 1/5] MIPS: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO Date: Mon, 25 Jul 2016 16:59:50 +0100 Message-ID: <1469462394-8970-2-git-send-email-james.hogan@imgtec.com> References: <1469462394-8970-1-git-send-email-james.hogan@imgtec.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mailapp01.imgtec.com ([195.59.15.196]:31419 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753090AbcGYQAU (ORCPT ); Mon, 25 Jul 2016 12:00:20 -0400 In-Reply-To: <1469462394-8970-1-git-send-email-james.hogan@imgtec.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org, James Hogan , Ralf Baechle , linux-mips@linux-mips.org AT_VECTOR_SIZE_ARCH should be defined with the maximum number of NEW_AUX_ENT entries that ARCH_DLINFO can contain, but it wasn't defined for MIPS at all even though ARCH_DLINFO will contain one NEW_AUX_ENT for the VDSO address. This shouldn't be a problem as AT_VECTOR_SIZE_BASE includes space for AT_BASE_PLATFORM which MIPS doesn't use, but lets define it now and add the comment above ARCH_DLINFO as found in several other architectures to remind future modifiers of ARCH_DLINFO to keep AT_VECTOR_SIZE_ARCH up to date. Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Signed-off-by: James Hogan Cc: Ralf Baechle Cc: linux-mips@linux-mips.org --- arch/mips/include/asm/elf.h | 1 + arch/mips/include/uapi/asm/auxvec.h | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h index f5f45717968e..ede8c4ff56f7 100644 --- a/arch/mips/include/asm/elf.h +++ b/arch/mips/include/asm/elf.h @@ -458,6 +458,7 @@ extern const char *__elf_platform; #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) #endif +/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ #define ARCH_DLINFO \ do { \ NEW_AUX_ENT(AT_SYSINFO_EHDR, \ diff --git a/arch/mips/include/uapi/asm/auxvec.h b/arch/mips/include/uapi/asm/auxvec.h index c9c7195272c4..45ba259a3618 100644 --- a/arch/mips/include/uapi/asm/auxvec.h +++ b/arch/mips/include/uapi/asm/auxvec.h @@ -14,4 +14,6 @@ /* Location of VDSO image. */ #define AT_SYSINFO_EHDR 33 +#define AT_VECTOR_SIZE_ARCH 1 /* entries in ARCH_DLINFO */ + #endif /* __ASM_AUXVEC_H */ -- 2.4.10