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{ "id": 62113, "url": "https://patches.dpdk.org/api/covers/62113/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/cover/20191028142145.3758-1-aostruszka@marvell.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20191028142145.3758-1-aostruszka@marvell.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20191028142145.3758-1-aostruszka@marvell.com", "date": "2019-10-28T14:21:34", "name": "[v5,00/11] Add an option to use LTO for DPDK build", "submitter": { "id": 1429, "url": "https://patches.dpdk.org/api/people/1429/?format=api", "name": "Andrzej Ostruszka [C]", "email": "aostruszka@marvell.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/cover/20191028142145.3758-1-aostruszka@marvell.com/mbox/", "series": [ { "id": 7109, "url": "https://patches.dpdk.org/api/series/7109/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=7109", "date": "2019-10-28T14:21:34", "name": "Add an option to use LTO for DPDK build", "version": 5, "mbox": "https://patches.dpdk.org/series/7109/mbox/" } ], "comments": "https://patches.dpdk.org/api/covers/62113/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 7F2601BEF1;\n\tMon, 28 Oct 2019 15:21:51 +0100 (CET)", "from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com\n\t[67.231.156.173]) by dpdk.org (Postfix) with ESMTP id BBCD31BEDF\n\tfor <dev@dpdk.org>; Mon, 28 Oct 2019 15:21:49 +0100 (CET)", "from pps.filterd (m0045851.ppops.net [127.0.0.1])\n\tby mx0b-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id\n\tx9SEKfnO005757; Mon, 28 Oct 2019 07:21:49 -0700", "from sc-exch04.marvell.com ([199.233.58.184])\n\tby mx0b-0016f401.pphosted.com with ESMTP id 2vvnnnwne4-1\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); \n\tMon, 28 Oct 2019 07:21:49 -0700", "from SC-EXCH01.marvell.com (10.93.176.81) by SC-EXCH04.marvell.com\n\t(10.93.176.84) with Microsoft SMTP Server (TLS) id 15.0.1367.3;\n\tMon, 28 Oct 2019 07:21:47 -0700", "from maili.marvell.com (10.93.176.43) by SC-EXCH01.marvell.com\n\t(10.93.176.81) with Microsoft SMTP Server id 15.0.1367.3 via Frontend\n\tTransport; Mon, 28 Oct 2019 07:21:47 -0700", "from amok.marvell.com (unknown [10.95.130.103])\n\tby maili.marvell.com (Postfix) with ESMTP id 45E003F703F;\n\tMon, 28 Oct 2019 07:21:46 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com;\n\th=from : to : cc :\n\tsubject : date : message-id : in-reply-to : references : mime-version\n\t: content-type : content-transfer-encoding; s=pfpt0818;\n\tbh=RKoPJ8JdhVZ6S11j9np3A7H1T5p9z3qjc7nPIGOjN9k=;\n\tb=xVpDLNCf/O02WtHbMG7RRWgiN1gqGCTH6XbHjrD1CzMtqukvX9K9Vo2mCSY+7ngyk0+P\n\tD2IO/ugD0o2TKc3oqR9IIhGVZFr7/uN9u6cb6Pdr62nxD7x7zbvjTG0N0PZntKt7921t\n\tWFJkuKjSJ+Cq393oAsXbQofvNjoZeFjBOl3r7pQOFrZPY0+VnjdyR3IOkIUr6BZjymqj\n\tDVsNGDQ0ZjfNyybPV5QiEA9fcoTUALGrSanoOG0ellFDPH5lNYsHHu59RMy2QYzFUMO2\n\t7RU8ibjf8B0Ux5PVnTJgkn6+QA6sdjHBUDU9GjFJsr5V5pPCbRiZafFUZEcHVNGExosg\n\tTQ== ", "From": "Andrzej Ostruszka <aostruszka@marvell.com>", "To": "<dev@dpdk.org>", "CC": "<mattias.ronnblom@ericsson.com>, <stephen@networkplumber.org>", "Date": "Mon, 28 Oct 2019 15:21:34 +0100", "Message-ID": "<20191028142145.3758-1-aostruszka@marvell.com>", "X-Mailer": "git-send-email 2.17.1", "In-Reply-To": "<20191022115412.8837-1-aostruszka@marvell.com>", "References": "<20191022115412.8837-1-aostruszka@marvell.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"UTF-8\"", "Content-Transfer-Encoding": "8bit", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10434:6.0.95,1.0.8\n\tdefinitions=2019-10-28_05:2019-10-25,2019-10-28 signatures=0", "Subject": "[dpdk-dev] [PATCH v5 00/11] Add an option to use LTO for DPDK build", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "This patch series adds an option to make use of link time optimization\n(if compiler has support for it). It is split as follows:\n- 1st patch fixes missing __vsym annotations (needed for LTO)\n- 2nd is the LTO enablement\n- remaining patches are fixes for the warnings produced by the compiler\n and they are split by directory/subsystem so their maintainers can\n easily find and verify the changes - please note that there are two\n groups:\n * errors (or possible errors) - with title \"fix possible use ...\"\n * false positives - warnings that _I_ think are not valid and the\n changes are made only to silence the compiler.\n\nv5 Changes:\n-----------\n- rebased to the v19.11 (one additional warning silenced in net/qede)\n- initial patch has been split into two:\n - one adding '__vsym' annotations and clarifying versioning docs\n - another adding the actual LTO enablement\n- addressed various documentation flaws pointed during review\n\nv4 Changes:\n-----------\n- merge nested conditionals in config/meson.build into one\n\nv3 Changes:\n-----------\n- removed support for clang (only gcc and icc remain):\n - it turned out that 'fat-lto-objects' is not really supported - it is\n accepted as a flag but ignored e.g. clang v6.0:\n clang: error: optimization flag '-ffat-lto-objects' is not supported\n [-Werror,-Wignored-optimization-argument]\n this was probably masked previously by playing around with meson and\n testing for the availability of this flag and dropping LTO if not\n supported.\n- improved commit messages:\n - added 'Fixes' tags where appropriate\n - included snippets of compiler warnings\n- changed commit names for the commits cleaning up 'false positive'\n compiler warnings - these are not really 'fixes' for the code, just\n workarounds for compiler shortcomings and check-git-log.sh was\n complaining about missing 'Fixes' tag.\n\nv2 Changes:\n-----------\n- fixed building of shared libraries:\n - gcc does not scan top level assembler statements so it missed that\n function implementations for specific versions were being used and\n was removing them\n- fixed meson.build config files:\n - moved from 'enable_lto' project option to built-in 'b_lto'\n - documented that 'default_library' should be 'shared':\n with 'default_library=static' (the default) the meson build with LTO\n is broken - this is because, SHARED_LIB is fixed in rte_config.h\n used by meson which leads to no alias for default version in\n generated static libraries (MAP_STATIC_SYMBOL() is empty)\n- app/test: added log for failed bonding \"config get\"\n\nAndrzej Ostruszka (11):\n build: annotate versioned symbols with __vsym macro\n build: add an option to enable LTO build\n eventdev: fix possible use of uninitialized var\n app/eventdev: clean LTO build warnings (maybe-uninitialized)\n event/octeontx2: clean LTO build warnings (maybe-uninitialized)\n app/test: clean LTO build warnings (maybe-uninitialized)\n net/dpaa2: fix possible use of uninitialized vars\n net/e1000: clean LTO build warnings (maybe-uninitialized)\n net/i40e: clean LTO build warnings (maybe-uninitialized)\n net/ifc: clean LTO build warnings (maybe-uninitialized)\n net/qede: clean LTO build warnings (maybe-uninitialized)\n\n .travis.yml | 7 ++++\n app/test-eventdev/test_perf_common.c | 2 +-\n app/test-eventdev/test_pipeline_common.c | 4 +-\n app/test/test_hash_readwrite.c | 2 +-\n app/test/test_link_bonding_mode4.c | 8 +++-\n app/test/test_memzone.c | 3 +-\n config/common_base | 5 +++\n config/meson.build | 13 ++++++\n doc/guides/contributing/versioning.rst | 18 ++++++---\n doc/guides/prog_guide/index.rst | 1 +\n doc/guides/prog_guide/lto.rst | 40 +++++++++++++++++++\n doc/guides/rel_notes/release_19_11.rst | 9 +++++\n drivers/event/octeontx2/otx2_tim_worker.h | 2 +-\n drivers/net/dpaa2/base/dpaa2_hw_dpni.c | 1 +\n drivers/net/dpaa2/mc/dpkg.c | 2 +-\n drivers/net/dpaa2/mc/dpni.c | 9 +++--\n drivers/net/e1000/base/e1000_82543.c | 2 +-\n drivers/net/e1000/base/e1000_ich8lan.c | 2 +-\n drivers/net/e1000/base/e1000_phy.c | 2 +-\n drivers/net/i40e/i40e_ethdev.c | 2 +-\n drivers/net/ifc/ifcvf_vdpa.c | 14 ++++---\n drivers/net/qede/base/ecore_mcp.c | 15 +++----\n lib/librte_distributor/rte_distributor.c | 18 ++++-----\n lib/librte_distributor/rte_distributor_v20.c | 18 ++++-----\n .../common/include/rte_function_versioning.h | 11 ++++-\n lib/librte_eventdev/rte_event_timer_adapter.c | 8 ++--\n lib/librte_lpm/rte_lpm.c | 28 ++++++-------\n lib/librte_lpm/rte_lpm6.c | 16 ++++----\n lib/librte_timer/rte_timer.c | 20 +++++-----\n mk/toolchain/gcc/rte.toolchain-compat.mk | 4 ++\n mk/toolchain/gcc/rte.vars.mk | 12 ++++++\n mk/toolchain/icc/rte.vars.mk | 8 ++++\n 32 files changed, 217 insertions(+), 89 deletions(-)\n create mode 100644 doc/guides/prog_guide/lto.rst" }