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
--
2.17.1
