From: Didier Pallard <didier.pallard@6wind.com> Date: Fri, 4 Jan 2013 17:00:11 +0000 (+0100) Subject: mk: allow to build shared libraries X-Git-Tag: spdx-start~10978 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=5125f7652c92ad8e37893b953a735dc5e0e97b66;p=dpdk.git mk: allow to build shared libraries Add mk/rte.shared.mk and mk/rte.extshared.mk in framework to allow shared libraries compilation through framework Signed-off-by: Didier Pallard <didier.pallard@6wind.com> Acked-by: Ivan Boule <ivan.boule@6wind.com> --- diff --git a/mk/rte.extshared.mk b/mk/rte.extshared.mk new file mode 100644 index 0000000000..0d8abbe352 --- /dev/null +++ b/mk/rte.extshared.mk @@ -0,0 +1,53 @@ +# BSD LICENSE +# +# Copyright 2012-2013 6WIND S.A. +# +# 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 6WIND S.A. 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. + +MAKEFLAGS += --no-print-directory + +# we must create the output dir first and recall the same Makefile +# from this directory +ifeq ($(NOT_FIRST_CALL),) + +NOT_FIRST_CALL = 1 +export NOT_FIRST_CALL + +all: + $(Q)mkdir -p $(RTE_OUTPUT) + $(Q)$(MAKE) -C $(RTE_OUTPUT) -f $(RTE_EXTMK) \ + S=$(RTE_SRCDIR) O=$(RTE_OUTPUT) SRCDIR=$(RTE_SRCDIR) + @echo $(RTE_OUTPUT)/lib must be added to /etc/ld.so.conf or \ + LD_LIBRARY_PATH variable to allow binary to link with dynamic library + +%:: + $(Q)mkdir -p $(RTE_OUTPUT) + $(Q)$(MAKE) -C $(RTE_OUTPUT) -f $(RTE_EXTMK) $@ \ + S=$(RTE_SRCDIR) O=$(RTE_OUTPUT) SRCDIR=$(RTE_SRCDIR) +else +include $(RTE_SDK)/mk/rte.shared.mk +endif diff --git a/mk/rte.shared.mk b/mk/rte.shared.mk new file mode 100644 index 0000000000..7a3a78fde4 --- /dev/null +++ b/mk/rte.shared.mk @@ -0,0 +1,140 @@ +# BSD LICENSE +# +# Copyright 2012-2013 6WIND S.A. +# +# 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 6WIND S.A. 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. + +include $(RTE_SDK)/mk/internal/rte.compile-pre.mk +include $(RTE_SDK)/mk/internal/rte.install-pre.mk +include $(RTE_SDK)/mk/internal/rte.clean-pre.mk +include $(RTE_SDK)/mk/internal/rte.build-pre.mk +include $(RTE_SDK)/mk/internal/rte.depdirs-pre.mk + +# VPATH contains at least SRCDIR +VPATH += $(SRCDIR) + +_BUILD = $(SHARED) +_INSTALL = $(INSTALL-FILES-y) $(SYMLINK-FILES-y) $(RTE_OUTPUT)/lib/$(SHARED) +_CLEAN = doclean + +# Set fPIC in CFLAGS for .so generation +CFLAGS += -fPIC + +.PHONY: all +all: install + +.PHONY: install +install: build _postinstall + +_postinstall: build + +.PHONY: build +build: _postbuild + +exe2cmd = $(strip $(call dotfile,$(patsubst %,%.cmd,$(1)))) + +ifeq ($(LINK_USING_CC),1) +comma := , +LDLIBS := $(addprefix -Wl$(comma),$(LDLIBS)) +LDFLAGS := $(addprefix -Wl$(comma),$(LDFLAGS)) +EXTRA_LDFLAGS := $(addprefix -Wl$(comma),$(EXTRA_LDFLAGS)) +O_TO_SO = $(CC) $(LDFLAGS) $(LDFLAGS_$(@)) $(EXTRA_LDFLAGS) \ + -shared -o $@ $(OBJS-y) $(LDLIBS) +else +O_TO_SO = $(LD) $(LDFLAGS) $(LDFLAGS_$(@)) $(EXTRA_LDFLAGS) \ + -shared -o $@ $(OBJS-y) $(LDLIBS) +endif + +O_TO_SO_STR = $(subst ','\'',$(O_TO_SO)) #'# fix syntax highlight +O_TO_SO_DISP = $(if $(V),"$(O_TO_SO_STR)"," LD $(@)") +O_TO_SO_CMD = "cmd_$@ = $(O_TO_SO_STR)" +O_TO_SO_DO = @set -e; \ + echo $(O_TO_SO_DISP); \ + $(O_TO_SO) && \ + echo $(O_TO_SO_CMD) > $(call exe2cmd,$(@)) + +-include .$(SHARED).cmd + +# path where libraries are retrieved +LDLIBS_PATH := $(subst -Wl$(comma)-L,,$(filter -Wl$(comma)-L%,$(LDLIBS))) +LDLIBS_PATH += $(subst -L,,$(filter -L%,$(LDLIBS))) + +# list of .a files that are linked to this application +LDLIBS_NAMES := $(patsubst -l%,lib%.a,$(filter -l%,$(LDLIBS))) +LDLIBS_NAMES += $(patsubst -Wl$(comma)-l%,lib%.a,$(filter -Wl$(comma)-l%,$(LDLIBS))) + +# list of found libraries files (useful for deps). If not found, the +# library is silently ignored and dep won't be checked +LDLIBS_FILES := $(wildcard $(foreach dir,$(LDLIBS_PATH),\ + $(addprefix $(dir)/,$(LDLIBS_NAMES)))) + +# +# Archive objects in .so file if needed +# +$(SHARED): $(OBJS-y) $(LDLIBS_FILES) $(DEP_$(SHARED)) FORCE + @[ -d $(dir $@) ] || mkdir -p $(dir $@) + $(if $(D),\ + @echo -n "$< -> $@ " ; \ + echo -n "file_missing=$(call boolean,$(file_missing)) " ; \ + echo -n "cmdline_changed=$(call boolean,$(call cmdline_changed,$(O_TO_SO_STR))) " ; \ + echo -n "depfile_missing=$(call boolean,$(depfile_missing)) " ; \ + echo "depfile_newer=$(call boolean,$(depfile_newer)) ") + $(if $(or \ + $(file_missing),\ + $(call cmdline_changed,$(O_TO_SO_STR)),\ + $(depfile_missing),\ + $(depfile_newer)),\ + $(O_TO_SO_DO)) + +# +# install lib in $(RTE_OUTPUT)/lib +# +$(RTE_OUTPUT)/lib/$(SHARED): $(SHARED) + @echo " INSTALL-SHARED $(SHARED)" + @[ -d $(RTE_OUTPUT)/lib ] || mkdir -p $(RTE_OUTPUT)/lib + $(Q)cp -f $(SHARED) $(RTE_OUTPUT)/lib + +# +# Clean all generated files +# +.PHONY: clean +clean: _postclean + +.PHONY: doclean +doclean: + $(Q)rm -rf $(SHARED) $(OBJS-all) $(DEPS-all) $(DEPSTMP-all) \ + $(CMDS-all) $(INSTALL-FILES-all) + $(Q)rm -f $(_BUILD_TARGETS) $(_INSTALL_TARGETS) $(_CLEAN_TARGETS) + +include $(RTE_SDK)/mk/internal/rte.compile-post.mk +include $(RTE_SDK)/mk/internal/rte.install-post.mk +include $(RTE_SDK)/mk/internal/rte.clean-post.mk +include $(RTE_SDK)/mk/internal/rte.build-post.mk +include $(RTE_SDK)/mk/internal/rte.depdirs-post.mk + +.PHONY: FORCE +FORCE: