From patchwork Mon Nov 27 10:24:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?SsO8cmdlbiBHcm/Dnw==?= X-Patchwork-Id: 13469311 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9E51CC07D5A for ; Mon, 27 Nov 2023 10:25:55 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.641716.1000488 (Exim 4.92) (envelope-from ) id 1r7Yo1-0008Na-I6; Mon, 27 Nov 2023 10:25:33 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 641716.1000488; Mon, 27 Nov 2023 10:25:33 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1r7Yo1-0008NT-FY; Mon, 27 Nov 2023 10:25:33 +0000 Received: by outflank-mailman (input) for mailman id 641716; Mon, 27 Nov 2023 10:25:33 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1r7Yo0-0008NG-Uu for xen-devel@lists.xenproject.org; Mon, 27 Nov 2023 10:25:32 +0000 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 47f41aac-8d0f-11ee-9b0e-b553b5be7939; Mon, 27 Nov 2023 11:25:29 +0100 (CET) Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:98]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 95AB221A8E; Mon, 27 Nov 2023 10:25:25 +0000 (UTC) Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id 6AA80132A6; Mon, 27 Nov 2023 10:25:25 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap2.dmz-prg2.suse.org with ESMTPSA id Jw69GJVuZGV5fgAAn2gu4w (envelope-from ); Mon, 27 Nov 2023 10:25:25 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 47f41aac-8d0f-11ee-9b0e-b553b5be7939 From: Juergen Gross To: minios-devel@lists.xenproject.org, xen-devel@lists.xenproject.org Cc: samuel.thibault@ens-lyon.org, wl@xen.org, Juergen Gross Subject: [PATCH v3 00/32] Mini-OS: hide mini-os internal symbols Date: Mon, 27 Nov 2023 11:24:51 +0100 Message-Id: <20231127102523.28003-1-jgross@suse.com> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 X-Spamd-Bar: ++++++++++++++++++++++++++ Authentication-Results: smtp-out1.suse.de; dkim=none; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=suse.com (policy=quarantine); spf=fail (smtp-out1.suse.de: domain of jgross@suse.com does not designate 2a07:de40:b281:104:10:150:64:98 as permitted sender) smtp.mailfrom=jgross@suse.com X-Rspamd-Server: rspamd2 X-Spamd-Result: default: False [26.60 / 50.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; BAYES_SPAM(5.10)[100.00%]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:98:from]; TO_DN_SOME(0.00)[]; R_MISSING_CHARSET(2.50)[]; BROKEN_CONTENT_TYPE(1.50)[]; RCPT_COUNT_FIVE(0.00)[5]; RCVD_COUNT_THREE(0.00)[3]; MX_GOOD(-0.01)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(2.20)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; R_SPF_FAIL(1.00)[-all]; FROM_HAS_DN(0.00)[]; DMARC_POLICY_QUARANTINE(1.50)[suse.com : No valid SPF, No valid DKIM,quarantine]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_SPAM_SHORT(3.00)[1.000]; MIME_GOOD(-0.10)[text/plain]; NEURAL_SPAM_LONG(3.50)[1.000]; MID_CONTAINS_FROM(1.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; RCVD_TLS_ALL(0.00)[] X-Rspamd-Queue-Id: 95AB221A8E In order to avoid conflicts due to symbols with the same name when linking Mini-OS with an application, hide all Mini9-OS internal symbols from the application by linking the Mini-OS kernel individually and then removing all symbols which should be used internally only. Changes in V2: - added more symbols in patch 2 Changes in V3: - Instead of a global file with symbol names use EXPORT_SYMBOL() instances for each symbol. Former patch 2 is replaced with new patches 2-32. Juergen Gross (32): Mini-OS: link kernel separately Mini-OS: explicitly mark symbols to be visible for apps Mini-OS: add EXPORT_SYMBOL() instances to kernel.c Mini-OS: add EXPORT_SYMBOL() instances to hypervisor.c Mini-OS: add EXPORT_SYMBOL() instances to sched.c Mini-OS: add EXPORT_SYMBOL() instances to mm.c Mini-OS: add EXPORT_SYMBOL() instances to lib/sys.c Mini-OS: add EXPORT_SYMBOL() instances to lib/string.c Mini-OS: add EXPORT_SYMBOL() instances to lib/math.c Mini-OS: add EXPORT_SYMBOL() instances to lib/printf.c Mini-OS: add EXPORT_SYMBOL() instances to lib/ctype.c Mini-OS: add EXPORT_SYMBOL() instances to lib/xmalloc.c Mini-OS: add EXPORT_SYMBOL() instances to lib/xs.c Mini-OS: add EXPORT_SYMBOL() instances to main.c Mini-OS: add EXPORT_SYMBOL() instances to console.c Mini-OS: add EXPORT_SYMBOL() instances to events.c Mini-OS: add EXPORT_SYMBOL() instances to gntmap.c Mini-OS: add EXPORT_SYMBOL() instances to gnttab.c Mini-OS: add EXPORT_SYMBOL() instances to ioremap.c Mini-OS: add EXPORT_SYMBOL() instances to lock.c Mini-OS: add EXPORT_SYMBOL() instances to time.c Mini-OS: add EXPORT_SYMBOL() instances to lwip-*.c Mini-OS: add EXPORT_SYMBOL() instances to 9pfront.c Mini-OS: add EXPORT_SYMBOL() instances to blkfront.c Mini-OS: add EXPORT_SYMBOL() instances to fbfront.c Mini-OS: add EXPORT_SYMBOL() instances to netfront.c Mini-OS: add EXPORT_SYMBOL() instances to pcifront.c Mini-OS: add EXPORT_SYMBOL() instances to tpmback.c Mini-OS: add EXPORT_SYMBOL() instances to tpmfront.c Mini-OS: add EXPORT_SYMBOL() instances to tpm_tis.c Mini-OS: add EXPORT_SYMBOL() instances to xenbus.c Mini-OS: hide all symbols not exported via EXPORT_SYMBOLS() .gitignore | 1 + 9pfront.c | 2 + Makefile | 11 ++++-- arch/arm/mm.c | 2 + arch/arm/time.c | 1 + arch/x86/ioremap.c | 5 ++- arch/x86/mm.c | 5 +++ arch/x86/sched.c | 5 +++ arch/x86/time.c | 2 +- blkfront.c | 12 ++++-- console.c | 5 +++ events.c | 7 ++++ fbfront.c | 11 +++++- gntmap.c | 5 +++ gnttab.c | 6 +++ hypervisor.c | 5 +++ include/export.h | 10 +++++ include/lib.h | 1 + kernel.c | 5 +++ lib/ctype.c | 2 + lib/math.c | 6 +++ lib/printf.c | 10 ++++- lib/string.c | 18 +++++++++ lib/sys.c | 92 +++++++++++++++++++++++++++++++++++++++++++--- lib/xmalloc.c | 3 ++ lib/xs.c | 10 +++++ lock.c | 9 ++++- lwip-arch.c | 9 +++++ lwip-net.c | 2 +- main.c | 3 ++ mm.c | 4 ++ netfront.c | 7 ++++ pcifront.c | 11 +++++- sched.c | 7 ++++ tpm_tis.c | 5 +++ tpmback.c | 11 ++++++ tpmfront.c | 6 +++ xenbus.c | 23 ++++++++++++ 38 files changed, 320 insertions(+), 19 deletions(-) create mode 100644 include/export.h Reviewed-by: Samuel Thibault