177 lines
6.6 KiB
Makefile
177 lines
6.6 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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#
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# Common to rte.lib.mk, rte.app.mk, rte.obj.mk
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#
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SRCS-all := $(SRCS-y) $(SRCS-n) $(SRCS-)
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# convert source to obj file
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src2obj = $(strip $(patsubst %.c,%.o,\
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$(patsubst %.S,%_s.o,$(1))))
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# add a dot in front of the file name
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dotfile = $(strip $(foreach f,$(1),\
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$(join $(dir $f),.$(notdir $f))))
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# convert source/obj files into dot-dep filename (does not
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# include .S files)
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src2dep = $(strip $(call dotfile,$(patsubst %.c,%.o.d, \
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$(patsubst %.S,,$(1)))))
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obj2dep = $(strip $(call dotfile,$(patsubst %.o,%.o.d,$(1))))
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# convert source/obj files into dot-cmd filename
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src2cmd = $(strip $(call dotfile,$(patsubst %.c,%.o.cmd, \
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$(patsubst %.S,%_s.o.cmd,$(1)))))
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obj2cmd = $(strip $(call dotfile,$(patsubst %.o,%.o.cmd,$(1))))
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OBJS-y := $(call src2obj,$(SRCS-y))
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OBJS-n := $(call src2obj,$(SRCS-n))
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OBJS- := $(call src2obj,$(SRCS-))
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OBJS-all := $(filter-out $(SRCS-all),$(OBJS-y) $(OBJS-n) $(OBJS-))
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DEPS-y := $(call src2dep,$(SRCS-y))
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DEPS-n := $(call src2dep,$(SRCS-n))
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DEPS- := $(call src2dep,$(SRCS-))
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DEPS-all := $(DEPS-y) $(DEPS-n) $(DEPS-)
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DEPSTMP-all := $(DEPS-all:%.d=%.d.tmp)
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CMDS-y := $(call src2cmd,$(SRCS-y))
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CMDS-n := $(call src2cmd,$(SRCS-n))
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CMDS- := $(call src2cmd,$(SRCS-))
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CMDS-all := $(CMDS-y) $(CMDS-n) $(CMDS-)
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-include $(DEPS-y) $(CMDS-y)
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# command to compile a .c file to generate an object
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ifeq ($(USE_HOST),1)
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C_TO_O = $(HOSTCC) -Wp,-MD,$(call obj2dep,$(@)).tmp $(HOST_CFLAGS) \
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$(CFLAGS_$(@)) $(HOST_EXTRA_CFLAGS) -o $@ -c $<
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C_TO_O_STR = $(subst ','\'',$(C_TO_O)) #'# fix syntax highlight
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C_TO_O_DISP = $(if $(V),"$(C_TO_O_STR)"," HOSTCC $(@)")
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else
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C_TO_O = $(CC) -Wp,-MD,$(call obj2dep,$(@)).tmp $(CFLAGS) \
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$(CFLAGS_$(@)) $(EXTRA_CFLAGS) -o $@ -c $<
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C_TO_O_STR = $(subst ','\'',$(C_TO_O)) #'# fix syntax highlight
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C_TO_O_DISP = $(if $(V),"$(C_TO_O_STR)"," CC $(@)")
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endif
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C_TO_O_CMD = "cmd_$@ = $(C_TO_O_STR)"
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C_TO_O_DO = @set -e; \
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echo $(C_TO_O_DISP); \
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$(C_TO_O) && \
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echo $(C_TO_O_CMD) > $(call obj2cmd,$(@)) && \
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sed 's,'$@':,dep_'$@' =,' $(call obj2dep,$(@)).tmp > $(call obj2dep,$(@)) && \
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rm -f $(call obj2dep,$(@)).tmp
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# return an empty string if string are equal
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compare = $(strip $(subst $(1),,$(2)) $(subst $(2),,$(1)))
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# return a non-empty string if the dst file does not exist
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file_missing = $(call compare,$(wildcard $@),$@)
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# return a non-empty string if cmdline changed
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cmdline_changed = $(call compare,$(cmd_$@),$(1))
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# return a non-empty string if a dependency file does not exist
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depfile_missing = $(call compare,$(wildcard $(dep_$@)),$(dep_$@))
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# return an empty string if no prereq is newer than target
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# - $^ -> names of all the prerequisites
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# - $(wildcard $^) -> every existing prereq
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# - $(filter-out $(wildcard $^),$^) -> every prereq that don't
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# exist (filter-out removes existing ones from the list)
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# - $? -> names of all the prerequisites newer than target
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depfile_newer = $(strip $(filter-out FORCE,$? \
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$(filter-out $(wildcard $^),$^)))
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# return 1 if parameter is a non-empty string, else 0
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boolean = $(if $1,1,0)
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#
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# Compile .c file if needed
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# Note: dep_$$@ is from the .d file and DEP_$$@ can be specified by
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# user (by default it is empty)
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#
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.SECONDEXPANSION:
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%.o: %.c $$(wildcard $$(dep_$$@)) $$(DEP_$$(@)) 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,$(C_TO_O_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,$(C_TO_O_STR)),\
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$(depfile_missing),\
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$(depfile_newer)),\
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$(C_TO_O_DO))
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# command to assemble a .S file to generate an object
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ifeq ($(USE_HOST),1)
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S_TO_O = $(CPP) $(HOST_CPPFLAGS) $($(@)_CPPFLAGS) $(HOST_EXTRA_CPPFLAGS) $< $(@).tmp && \
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$(HOSTAS) $(HOST_ASFLAGS) $($(@)_ASFLAGS) $(HOST_EXTRA_ASFLAGS) -o $@ $(@).tmp
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S_TO_O_STR = $(subst ','\'',$(S_TO_O)) #'# fix syntax highlight
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S_TO_O_DISP = $(if $(V),"$(S_TO_O_STR)"," HOSTAS $(@)")
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else
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S_TO_O = $(CPP) $(CPPFLAGS) $($(@)_CPPFLAGS) $(EXTRA_CPPFLAGS) $< -o $(@).tmp && \
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$(AS) $(ASFLAGS) $($(@)_ASFLAGS) $(EXTRA_ASFLAGS) -o $@ $(@).tmp
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S_TO_O_STR = $(subst ','\'',$(S_TO_O)) #'# fix syntax highlight
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S_TO_O_DISP = $(if $(V),"$(S_TO_O_STR)"," AS $(@)")
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endif
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S_TO_O_CMD = "cmd_$@ = $(S_TO_O_STR)"
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S_TO_O_DO = @set -e; \
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echo $(S_TO_O_DISP); \
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$(S_TO_O) && \
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echo $(S_TO_O_CMD) > $(call obj2cmd,$(@))
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#
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# Compile .S file if needed
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# Note: DEP_$$@ can be specified by user (by default it is empty)
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#
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%_s.o: %.S $$(DEP_$$@) 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,$(call cmdline_changed,$(S_TO_O_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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$(call cmdline_changed,$(S_TO_O_STR)),\
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$(depfile_missing),\
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$(depfile_newer)),\
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$(S_TO_O_DO))
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