From patchwork Tue Jan 11 18:43:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Weimer X-Patchwork-Id: 49883 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 457B0385801C for ; Tue, 11 Jan 2022 18:44:07 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 457B0385801C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1641926647; bh=vi1DYifXIogNGTI3WKgZGw4/+hI2kJdU82tLV2tZe48=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=Z5dILTr/4vv9RbEZov/3pGO+E5iLb2aB4gdkP9E7XO3aDfDOjzX28uop2lpRFYadB iLOTEIAb0fw04l9Kmsu+py8aUvvXpAlL/tFJscbD1ueXLoZd9XaxZClOCCKbrVXQ9u MJ6UJxl/v+7RJPDLD9utqPXOH5aXbJQjVdh19VyA= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 4B8383858D39 for ; Tue, 11 Jan 2022 18:43:46 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 4B8383858D39 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-394-aNpWGtRHO5CeHjIIVkYuMg-1; Tue, 11 Jan 2022 13:43:44 -0500 X-MC-Unique: aNpWGtRHO5CeHjIIVkYuMg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id CC7961F2E7 for ; Tue, 11 Jan 2022 18:43:43 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.192.102]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 2F0907E7D9 for ; Tue, 11 Jan 2022 18:43:43 +0000 (UTC) To: libc-alpha@sourceware.org Subject: [PATCH 0/5] Linux: Auxiliary vector parsing cleanups X-From-Line: b8249d9732537c0a8850a08e892e5afa80d801c6 Mon Sep 17 00:00:00 2001 Message-Id: Date: Tue, 11 Jan 2022 19:43:41 +0100 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-6.4 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Florian Weimer via Libc-alpha From: Florian Weimer Reply-To: Florian Weimer Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libc-alpha" This removes some support code for pre-2.4.0 kernels and Native Client. The simplified version of _dl_sysdep_start has a higher chance to run on CPUs with older ISA levels, which is the main motivation for this cleanup. Thanks, Florian Florian Weimer (5): elf: Merge dl-sysdep.c into the Linux version Linux: Remove HAVE_AUX_SECURE, HAVE_AUX_XID, HAVE_AUX_PAGESIZE Linux: Remove DL_FIND_ARG_COMPONENTS Linux: Assume that NEED_DL_SYSINFO_DSO is always defined Linux: Consolidate auxiliary vector parsing elf/dl-support.c | 80 +---- elf/dl-sysdep.c | 352 +------------------ sysdeps/unix/sysv/linux/alpha/dl-auxv.h | 18 +- sysdeps/unix/sysv/linux/dl-parse_auxv.h | 61 ++++ sysdeps/unix/sysv/linux/dl-sysdep.c | 240 ++++++++++++- sysdeps/unix/sysv/linux/ldsodefs.h | 12 - sysdeps/unix/sysv/linux/m68k/sysdep.h | 4 +- sysdeps/unix/sysv/linux/powerpc/dl-auxv.h | 14 +- sysdeps/unix/sysv/linux/powerpc/dl-support.c | 4 + 9 files changed, 305 insertions(+), 480 deletions(-) create mode 100644 sysdeps/unix/sysv/linux/dl-parse_auxv.h create mode 100644 sysdeps/unix/sysv/linux/powerpc/dl-support.c base-commit: 7e08db3359c86c94918feb33a1182cd0ff3bb10b