From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E99B1C43218 for ; Mon, 10 Jun 2019 21:20:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C304820820 for ; Mon, 10 Jun 2019 21:20:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="RLeDGOFu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390249AbfFJVUt (ORCPT ); Mon, 10 Jun 2019 17:20:49 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:38264 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390184AbfFJVUr (ORCPT ); Mon, 10 Jun 2019 17:20:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=1jVYMx/arZAqs3yuKoy0cJPUA3vC+BJxP8Rm0Qe6EP0=; b=RLeDGOFuoEZIU9Yz3L63IZUUz5 dMkmwauB0/YGOaKSByq48/Po0fjYbOpKaT2U5m6IsGlvf80ujBTEc4ShK/FrfLnQBAtVz+s9/5NwH 2OcXoPeCABwy6MXhqnLwhl1y6ffF+r7nA+a6FDl06pRqMso7LCdeA1DVEX+i5Ptxhs6XMA1RbIJ2+ Ch7L+/809ketnOVB2AYZfg4ylqI/N+LRd/HF6NTQ69H9fvrY3oGAg5suKEzMBhwqdrKNjjYzYGCDn SG/ryasHhHqXAhnDDEAIrXpKu/HWWQvfkljoPukucA0zTwcjXn8KEkkc/9BTehqzpG4SOi5mnwCkP gs3Bsz0w==; Received: from 089144193064.atnat0002.highway.a1.net ([89.144.193.64] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1haRic-0000bq-Co; Mon, 10 Jun 2019 21:20:42 +0000 From: Christoph Hellwig To: Greg Ungerer Cc: Michal Simek , linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, uclinux-h8-devel@lists.sourceforge.jp, linux-m68k@lists.linux-m68k.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org Subject: [PATCH 09/15] binfmt_flat: add a ARCH_HAS_BINFMT_FLAT option Date: Mon, 10 Jun 2019 23:20:09 +0200 Message-Id: <20190610212015.9157-10-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190610212015.9157-1-hch@lst.de> References: <20190610212015.9157-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Allow architectures to opt into ARCH_HAS_BINFMT_FLAT support instead of assuming that all nommu ports support the format. Signed-off-by: Christoph Hellwig --- arch/arm/Kconfig | 1 + arch/c6x/Kconfig | 1 + arch/h8300/Kconfig | 1 + arch/m68k/Kconfig | 1 + arch/microblaze/Kconfig | 1 + arch/sh/Kconfig | 1 + arch/xtensa/Kconfig | 1 + fs/Kconfig.binfmt | 5 ++++- 8 files changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index b1b48c0bde76..695a26c68064 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -4,6 +4,7 @@ config ARM default y select ARCH_32BIT_OFF_T select ARCH_CLOCKSOURCE_DATA + select ARCH_HAS_BINFMT_FLAT select ARCH_HAS_DEBUG_VIRTUAL if MMU select ARCH_HAS_DEVMEM_IS_ALLOWED select ARCH_HAS_ELF_RANDOMIZE diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig index eeb0471268a0..78dfe186d708 100644 --- a/arch/c6x/Kconfig +++ b/arch/c6x/Kconfig @@ -7,6 +7,7 @@ config C6X def_bool y select ARCH_32BIT_OFF_T + select ARCH_HAS_BINFMT_FLAT select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYNC_DMA_FOR_DEVICE select CLKDEV_LOOKUP diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index 7457f190caaa..ec800e9d5aad 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -2,6 +2,7 @@ config H8300 def_bool y select ARCH_32BIT_OFF_T + select ARCH_HAS_BINFMT_FLAT select BINFMT_FLAT_ARGVP_ENVP_ON_STACK select BINFMT_FLAT_OLD_ALWAYS_RAM select GENERIC_ATOMIC64 diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index fd69ee5ad6ab..c0c43c624afa 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -3,6 +3,7 @@ config M68K bool default y select ARCH_32BIT_OFF_T + select ARCH_HAS_BINFMT_FLAT select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA select ARCH_MIGHT_HAVE_PC_PARPORT if ISA select ARCH_NO_COHERENT_DMA_MMAP if !MMU diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index f11433daab4a..d411de05b628 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -3,6 +3,7 @@ config MICROBLAZE def_bool y select ARCH_32BIT_OFF_T select ARCH_NO_SWAP + select ARCH_HAS_BINFMT_FLAT if !MMU select ARCH_HAS_DMA_COHERENT_TO_PFN if MMU select ARCH_HAS_GCOV_PROFILE_ALL select ARCH_HAS_SYNC_DMA_FOR_CPU diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index b77f512bb176..df3e6215b78c 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 config SUPERH def_bool y + select ARCH_HAS_BINFMT_FLAT if !MMU select ARCH_HAS_PTE_SPECIAL select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_MIGHT_HAVE_PC_PARPORT diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 6ec1b75eabc5..ebc135bda921 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -2,6 +2,7 @@ config XTENSA def_bool y select ARCH_32BIT_OFF_T + select ARCH_HAS_BINFMT_FLAT if !MMU select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYNC_DMA_FOR_DEVICE select ARCH_NO_COHERENT_DMA_MMAP if !MMU diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt index 82f7d7f234f3..286b425b30b9 100644 --- a/fs/Kconfig.binfmt +++ b/fs/Kconfig.binfmt @@ -91,9 +91,12 @@ config BINFMT_SCRIPT Most systems will not boot if you say M or N here. If unsure, say Y. +config ARCH_HAS_BINFMT_FLAT + bool + config BINFMT_FLAT bool "Kernel support for flat binaries" - depends on !MMU || ARM || M68K + depends on ARCH_HAS_BINFMT_FLAT help Support uClinux FLAT format binaries. -- 2.20.1