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[31.172.191.173]) by smtp.googlemail.com with ESMTPSA id g1sm270659ljl.31.2019.09.17.00.57.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Sep 2019 00:57:55 -0700 (PDT) From: Andrzej Ostruszka To: dev@dpdk.org Cc: mattias.ronnblom@ericsson.com, stephen@networkplumber.org Date: Tue, 17 Sep 2019 09:57:44 +0200 Message-Id: <20190917075754.8310-1-amo@semihalf.com> X-Mailer: git-send-email 2.17.1 Subject: [dpdk-dev] [PATCH v2 00/10] 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch series adds an option to make use of link time optimization (if compiler has support for it). It is split as follows: - 1st patch (build) is the enablement - remaining patches are fixes for the warnings produced by the compiler and they are split by directory/subsystem so their maintainers can easily find and verify the changes - please note that there are two groups: * errors (or possible errors) - with title "fix possible use ..." * false positives - warnings that _I_ think are not valid and the changes are made only to silence the compiler. v2 Changes: ----------- - fixed building of shared libraries: - gcc does not scan top level assembler statements so it missed that function implementations for specific versions were being used and was removing them - fixed meson.build config files: - moved from 'enable_lto' project option to built-in 'b_lto' - documented that 'default_library' should be 'shared': with 'default_library=static' (the default) the meson build with LTO is broken - this is because, SHARED_LIB is fixed in rte_config.h used by meson which leads to no alias for default version in generated static libraries (MAP_STATIC_SYMBOL() is empty) - app/test: added log for failed bonding "config get" Andrzej Ostruszka (10): build: add an option to enable LTO build eventdev: fix possible use of uninitialized var app/eventdev: fix maybe-uninitialized warnings for LTO build event/octeontx2: fix maybe-uninitialized warnings for LTO build app/test: fix maybe-uninitialized warnings for LTO build net/dpaa2: fix possible use of uninitialized vars net/e1000: fix maybe-uninitialized warnings for LTO build net/i40e: fix maybe-uninitialized warnings for LTO build net/ifc: fix maybe-uninitialized warnings for LTO build net/qede: fix maybe-uninitialized warnings for LTO build .travis.yml | 7 ++++ app/test-eventdev/test_perf_common.c | 2 +- app/test-eventdev/test_pipeline_common.c | 4 +- app/test/test_hash_readwrite.c | 2 +- app/test/test_link_bonding_mode4.c | 10 ++++- app/test/test_memzone.c | 3 +- config/common_base | 5 +++ config/meson.build | 15 ++++++++ doc/guides/prog_guide/lto.rst | 37 +++++++++++++++++++ doc/guides/rel_notes/release_19_11.rst | 8 ++++ drivers/event/octeontx2/otx2_tim_worker.h | 2 +- drivers/net/dpaa2/base/dpaa2_hw_dpni.c | 1 + drivers/net/dpaa2/mc/dpkg.c | 2 +- drivers/net/dpaa2/mc/dpni.c | 9 +++-- drivers/net/e1000/base/e1000_82543.c | 2 +- drivers/net/e1000/base/e1000_ich8lan.c | 2 +- drivers/net/e1000/base/e1000_phy.c | 2 +- drivers/net/i40e/i40e_ethdev.c | 2 +- drivers/net/ifc/ifcvf_vdpa.c | 14 ++++--- drivers/net/qede/base/ecore_mcp.c | 13 ++++--- lib/librte_distributor/rte_distributor.c | 18 ++++----- lib/librte_distributor/rte_distributor_v20.c | 18 ++++----- lib/librte_eventdev/rte_event_timer_adapter.c | 8 ++-- lib/librte_lpm/rte_lpm.c | 28 +++++++------- lib/librte_lpm/rte_lpm6.c | 16 ++++---- lib/librte_timer/rte_timer.c | 20 +++++----- mk/toolchain/clang/rte.toolchain-compat.mk | 4 ++ mk/toolchain/clang/rte.vars.mk | 8 ++++ mk/toolchain/gcc/rte.toolchain-compat.mk | 4 ++ mk/toolchain/gcc/rte.vars.mk | 12 ++++++ mk/toolchain/icc/rte.vars.mk | 8 ++++ 31 files changed, 205 insertions(+), 81 deletions(-) create mode 100644 doc/guides/prog_guide/lto.rst