948fd64bef
The physically linked-together combined library has been an increasing source of problems, as was predicted when library and symbol versioning was introduced. Replace the complex and fragile construction with a simple linker script which achieves the same without all the problems, remove the related kludges from eg mlx drivers. Since creating the linker script is practically zero cost, remove the config option and just create it always. Based on a patch by Sergio Gonzales Monroy, linker script approach initially suggested by Neil Horman. Suggested-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com> Suggested-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Panu Matilainen <pmatilai@redhat.com> Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
193 lines
6.1 KiB
Makefile
193 lines
6.1 KiB
Makefile
# BSD LICENSE
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#
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# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Intel Corporation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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include $(RTE_SDK)/mk/internal/rte.compile-pre.mk
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include $(RTE_SDK)/mk/internal/rte.install-pre.mk
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include $(RTE_SDK)/mk/internal/rte.clean-pre.mk
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include $(RTE_SDK)/mk/internal/rte.build-pre.mk
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include $(RTE_SDK)/mk/internal/rte.depdirs-pre.mk
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EXTLIB_BUILD ?= n
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# VPATH contains at least SRCDIR
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VPATH += $(SRCDIR)
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ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
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LIB := $(patsubst %.a,%.so.$(LIBABIVER),$(LIB))
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ifeq ($(EXTLIB_BUILD),n)
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ifeq ($(CONFIG_RTE_NEXT_ABI),y)
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LIB := $(LIB).1
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endif
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CPU_LDFLAGS += --version-script=$(SRCDIR)/$(EXPORT_MAP)
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endif
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endif
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_BUILD = $(LIB)
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_INSTALL = $(INSTALL-FILES-y) $(SYMLINK-FILES-y) $(RTE_OUTPUT)/lib/$(LIB)
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_CLEAN = doclean
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.PHONY: all
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all: install
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.PHONY: install
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install: build _postinstall
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_postinstall: build
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.PHONY: build
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build: _postbuild
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exe2cmd = $(strip $(call dotfile,$(patsubst %,%.cmd,$(1))))
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ifeq ($(LINK_USING_CC),1)
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# Override the definition of LD here, since we're linking with CC
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LD := $(CC) $(CPU_CFLAGS)
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_CPU_LDFLAGS := $(call linkerprefix,$(CPU_LDFLAGS))
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override EXTRA_LDFLAGS := $(call linkerprefix,$(EXTRA_LDFLAGS))
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else
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_CPU_LDFLAGS := $(CPU_LDFLAGS)
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endif
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O_TO_A = $(AR) crDs $(LIB) $(OBJS-y)
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O_TO_A_STR = $(subst ','\'',$(O_TO_A)) #'# fix syntax highlight
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O_TO_A_DISP = $(if $(V),"$(O_TO_A_STR)"," AR $(@)")
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O_TO_A_CMD = "cmd_$@ = $(O_TO_A_STR)"
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O_TO_A_DO = @set -e; \
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echo $(O_TO_A_DISP); \
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$(O_TO_A) && \
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echo $(O_TO_A_CMD) > $(call exe2cmd,$(@))
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O_TO_S = $(LD) $(_CPU_LDFLAGS) $(EXTRA_LDFLAGS) -shared $(OBJS-y) $(LDLIBS) \
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-Wl,-soname,$(LIB) -o $(LIB)
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O_TO_S_STR = $(subst ','\'',$(O_TO_S)) #'# fix syntax highlight
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O_TO_S_DISP = $(if $(V),"$(O_TO_S_STR)"," LD $(@)")
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O_TO_S_DO = @set -e; \
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echo $(O_TO_S_DISP); \
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$(O_TO_S) && \
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echo $(O_TO_S_CMD) > $(call exe2cmd,$(@))
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ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),n)
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O_TO_C = $(AR) crus $(LIB_ONE) $(OBJS-y)
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O_TO_C_STR = $(subst ','\'',$(O_TO_C)) #'# fix syntax highlight
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O_TO_C_DISP = $(if $(V),"$(O_TO_C_STR)"," AR_C $(@)")
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O_TO_C_DO = @set -e; \
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$(lib_dir) \
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$(copy_obj)
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else
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O_TO_C = $(LD) -shared $(OBJS-y) -o $(LIB_ONE)
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O_TO_C_STR = $(subst ','\'',$(O_TO_C)) #'# fix syntax highlight
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O_TO_C_DISP = $(if $(V),"$(O_TO_C_STR)"," LD_C $(@)")
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O_TO_C_DO = @set -e; \
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$(lib_dir) \
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$(copy_obj)
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endif
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copy_obj = cp -f $(OBJS-y) $(RTE_OUTPUT)/build/lib;
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lib_dir = [ -d $(RTE_OUTPUT)/lib ] || mkdir -p $(RTE_OUTPUT)/lib;
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-include .$(LIB).cmd
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#
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# Archive objects in .a file if needed
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#
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ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
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$(LIB): $(OBJS-y) $(DEP_$(LIB)) FORCE
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ifeq ($(LIBABIVER),)
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@echo "Must Specify a $(LIB) ABI version"
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@false
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endif
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@[ -d $(dir $@) ] || mkdir -p $(dir $@)
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$(if $(D),\
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@echo -n "$< -> $@ " ; \
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echo -n "file_missing=$(call boolean,$(file_missing)) " ; \
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echo -n "cmdline_changed=$(call boolean,$(call cmdline_changed,$(O_TO_S_STR))) " ; \
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echo -n "depfile_missing=$(call boolean,$(depfile_missing)) " ; \
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echo "depfile_newer=$(call boolean,$(depfile_newer)) ")
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$(if $(or \
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$(file_missing),\
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$(call cmdline_changed,$(O_TO_S_STR)),\
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$(depfile_missing),\
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$(depfile_newer)),\
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$(O_TO_S_DO))
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else
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$(LIB): $(OBJS-y) $(DEP_$(LIB)) FORCE
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@[ -d $(dir $@) ] || mkdir -p $(dir $@)
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$(if $(D),\
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@echo -n "$< -> $@ " ; \
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echo -n "file_missing=$(call boolean,$(file_missing)) " ; \
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echo -n "cmdline_changed=$(call boolean,$(call cmdline_changed,$(O_TO_A_STR))) " ; \
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echo -n "depfile_missing=$(call boolean,$(depfile_missing)) " ; \
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echo "depfile_newer=$(call boolean,$(depfile_newer)) ")
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$(if $(or \
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$(file_missing),\
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$(call cmdline_changed,$(O_TO_A_STR)),\
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$(depfile_missing),\
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$(depfile_newer)),\
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$(O_TO_A_DO))
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endif
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#
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# install lib in $(RTE_OUTPUT)/lib
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#
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$(RTE_OUTPUT)/lib/$(LIB): $(LIB)
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@echo " INSTALL-LIB $(LIB)"
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@[ -d $(RTE_OUTPUT)/lib ] || mkdir -p $(RTE_OUTPUT)/lib
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$(Q)cp -f $(LIB) $(RTE_OUTPUT)/lib
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ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
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ifeq ($(CONFIG_RTE_NEXT_ABI)$(EXTLIB_BUILD),yn)
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$(Q)ln -s -f $< $(basename $(basename $@))
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else
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$(Q)ln -s -f $< $(basename $@)
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endif
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endif
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#
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# Clean all generated files
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#
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.PHONY: clean
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clean: _postclean
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.PHONY: doclean
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doclean:
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$(Q)rm -rf $(LIB) $(OBJS-all) $(DEPS-all) $(DEPSTMP-all) \
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$(CMDS-all) $(INSTALL-FILES-all)
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$(Q)rm -f $(_BUILD_TARGETS) $(_INSTALL_TARGETS) $(_CLEAN_TARGETS)
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include $(RTE_SDK)/mk/internal/rte.compile-post.mk
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include $(RTE_SDK)/mk/internal/rte.install-post.mk
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include $(RTE_SDK)/mk/internal/rte.clean-post.mk
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include $(RTE_SDK)/mk/internal/rte.build-post.mk
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include $(RTE_SDK)/mk/internal/rte.depdirs-post.mk
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.PHONY: FORCE
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FORCE:
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