From patchwork Tue Nov 29 14:00:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Marchand X-Patchwork-Id: 120274 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 9C4A7A04FD; Tue, 29 Nov 2022 15:01:00 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 892AE42686; Tue, 29 Nov 2022 15:01:00 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mails.dpdk.org (Postfix) with ESMTP id 5C13940691 for ; Tue, 29 Nov 2022 15:00:58 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1669730457; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=1IAp6Z0OwOgQwGkrK58YNWe2PL2ugZkzYLh+bMg3yPo=; b=b//JBIEP+44gJk44XvFV7zsBbcjYRqfh296ScYmNlNlwXGa/P5G3E5P7nbJ1zAIvMcwV2C c0N3W2NnlI8pM9y8ASgL6rK2WacLT23HpjwqV7RsWmyvYkft1/omSnc+CLgEgoLiS50HsP 8gldlZEeRiRG2cg/X+K4DDtWtUD7fTA= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-197-72iTs7yeOJCGy0L66SmoMw-1; Tue, 29 Nov 2022 09:00:56 -0500 X-MC-Unique: 72iTs7yeOJCGy0L66SmoMw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6BBF3833AF0; Tue, 29 Nov 2022 14:00:54 +0000 (UTC) Received: from localhost.localdomain (ovpn-192-236.brq.redhat.com [10.40.192.236]) by smtp.corp.redhat.com (Postfix) with ESMTP id AE6D44EA4B; Tue, 29 Nov 2022 14:00:52 +0000 (UTC) From: David Marchand To: dev@dpdk.org Cc: ferruh.yigit@amd.com, stable@dpdk.org, Luca Boccassi , Bruce Richardson , =?utf-8?b?QWJkdWxsYWggw5Zt?= =?utf-8?b?ZXIgWWFtYcOn?= Subject: [PATCH] drivers: fix symbol exports when map is omitted Date: Tue, 29 Nov 2022 15:00:32 +0100 Message-Id: <20221129140032.35940-1-david.marchand@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org ld exports any global symbol by default if no version script is passed. As a consequence, the incriminated change let any public symbol leak out of the driver shared libraries. Hide again those symbols by providing a default map file which unexports any global symbol using a local: * catchall statement. The check on symbols is skipped for this default map file as it is intentionnally an empty map (see commit b67bdda86cd4 ("devtools: catch empty symbol maps")) and there is nothing to check in it. While at it, move Windows specific objects where needed for better readability. Fixes: 7dde9c844a37 ("drivers: omit symbol map when unneeded") Cc: stable@dpdk.org Reported-by: Luca Boccassi Signed-off-by: David Marchand Tested-by: Ferruh Yigit --- drivers/meson.build | 70 ++++++++++++++++++++++++--------------------- drivers/version.map | 3 ++ 2 files changed, 41 insertions(+), 32 deletions(-) create mode 100644 drivers/version.map diff --git a/drivers/meson.build b/drivers/meson.build index c4ff3ff1ba..77e92c3bce 100644 --- a/drivers/meson.build +++ b/drivers/meson.build @@ -206,44 +206,50 @@ foreach subpath:subdirs # now build the shared driver version_map = '@0@/@1@/version.map'.format(meson.current_source_dir(), drv_path) - implib = 'lib' + lib_name + '.dll.a' lk_deps = [] lk_args = [] - if fs.is_file(version_map) - def_file = custom_target(lib_name + '_def', - command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], - input: version_map, - output: '@0@_exports.def'.format(lib_name)) - - mingw_map = custom_target(lib_name + '_mingw', - command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], - input: version_map, - output: '@0@_mingw.map'.format(lib_name)) - - lk_deps = [version_map, def_file, mingw_map] - if is_windows - if is_ms_linker - lk_args = ['-Wl,/def:' + def_file.full_path()] - if meson.version().version_compare('<0.54.0') - lk_args += ['-Wl,/implib:drivers\\' + implib] - endif - else - lk_args = ['-Wl,--version-script=' + mingw_map.full_path()] + if not fs.is_file(version_map) + version_map = '@0@/version.map'.format(meson.current_source_dir()) + lk_deps += [version_map] + else + lk_deps += [version_map] + if not is_windows and developer_mode + # on unix systems check the output of the + # check-symbols.sh script, using it as a + # dependency of the .so build + lk_deps += custom_target(lib_name + '.sym_chk', + command: [check_symbols, version_map, '@INPUT@'], + capture: true, + input: static_lib, + output: lib_name + '.sym_chk') + endif + endif + + if is_windows + if is_ms_linker + def_file = custom_target(lib_name + '_def', + command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], + input: version_map, + output: '@0@_exports.def'.format(lib_name)) + lk_deps += def_file + + lk_args = ['-Wl,/def:' + def_file.full_path()] + if meson.version().version_compare('<0.54.0') + implib = 'lib' + lib_name + '.dll.a' + lk_args += ['-Wl,/implib:drivers\\' + implib] endif else - lk_args = ['-Wl,--version-script=' + version_map] - if developer_mode - # on unix systems check the output of the - # check-symbols.sh script, using it as a - # dependency of the .so build - lk_deps += custom_target(lib_name + '.sym_chk', - command: [check_symbols, version_map, '@INPUT@'], - capture: true, - input: static_lib, - output: lib_name + '.sym_chk') - endif + mingw_map = custom_target(lib_name + '_mingw', + command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'], + input: version_map, + output: '@0@_mingw.map'.format(lib_name)) + lk_deps += [mingw_map] + + lk_args = ['-Wl,--version-script=' + mingw_map.full_path()] endif + else + lk_args = ['-Wl,--version-script=' + version_map] endif shared_lib = shared_library(lib_name, sources, diff --git a/drivers/version.map b/drivers/version.map new file mode 100644 index 0000000000..78c3585d7c --- /dev/null +++ b/drivers/version.map @@ -0,0 +1,3 @@ +DPDK_23 { + local: *; +};