numam-spdk/mk/spdk.app_vars.mk
Seth Howell e29c6fe133 mk: force --no-as-needed for spdk libs.
When building shared libs, we specifically don't set the --as-needed
flag so that we still link against libraries that have constructor
functions. LD reports on its man page that the default behavior is
equivalent to --no-as-needed.

For RHEL based distros like fedora and centos this works fine. While
the LD man page shipped with ubuntu distributions also states that
--no-as-needed is the default, they don't respect that behavior and do
--as-needed linking unless you force them with --no-as-needed.

Change-Id: I914ab849323de198af5c5e53fffb1f57fcaff5fe
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/464621
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-08-12 21:12:16 +00:00

52 lines
2.3 KiB
Makefile

#
# BSD LICENSE
#
# Copyright (c) Intel Corporation.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Intel Corporation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
SPDK_LIB_FILES = $(call spdk_lib_list_to_static_libs,$(SPDK_LIB_LIST))
SPDK_LIB_LINKER_ARGS = \
-L$(SPDK_ROOT_DIR)/build/lib \
-Wl,--whole-archive \
-Wl,--no-as-needed \
$(SPDK_LIB_LIST:%=-lspdk_%) \
-Wl,--no-whole-archive
# This is primarily used for unit tests to ensure they link when shared library
# build is enabled. Shared libraries can't get their mock implementation from
# the unit test file. Note that even for unittests, we must include the mock
# library with whole-archive, to keep its functions from getting stripped out
# when LTO is enabled.
SPDK_STATIC_LIB_LINKER_ARGS = \
$(SPDK_LIB_LIST:%=$(SPDK_ROOT_DIR)/build/lib/libspdk_%.a) \
-Wl,--whole-archive \
$(SPDK_ROOT_DIR)/build/lib/libspdk_ut_mock.a \
-Wl,--no-whole-archive