kbuild: enable use of code from a different dir
To introduce support for source in one directory but output files in another directory during a non O= build prefix all paths with $(src) repsectively $(obj). Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Sam Ravnborg
parent
5447d34b08
commit
767e581d75
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@ -131,13 +131,13 @@ $(multi-objs-y:.o=.lst) : modname = $(modname-multi)
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quiet_cmd_cc_s_c = CC $(quiet_modtag) $@
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cmd_cc_s_c = $(CC) $(c_flags) -fverbose-asm -S -o $@ $<
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%.s: %.c FORCE
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$(obj)/%.s: $(src)/%.c FORCE
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$(call if_changed_dep,cc_s_c)
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quiet_cmd_cc_i_c = CPP $(quiet_modtag) $@
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cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $<
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%.i: %.c FORCE
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$(obj)/%.i: $(src)/%.c FORCE
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$(call if_changed_dep,cc_i_c)
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quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
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@ -146,7 +146,7 @@ cmd_cc_symtypes_c = \
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| $(GENKSYMS) -T $@ >/dev/null; \
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test -s $@ || rm -f $@
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%.symtypes : %.c FORCE
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$(obj)/%.symtypes : $(src)/%.c FORCE
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$(call if_changed_dep,cc_symtypes_c)
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# C (.c) files
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@ -198,14 +198,13 @@ define rule_cc_o_c
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endef
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# Built-in and composite module parts
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%.o: %.c FORCE
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$(obj)/%.o: $(src)/%.c FORCE
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$(call cmd,force_checksrc)
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$(call if_changed_rule,cc_o_c)
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# Single-part modules are special since we need to mark them in $(MODVERDIR)
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$(single-used-m): %.o: %.c FORCE
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$(single-used-m): $(obj)/%.o: $(src)/%.c FORCE
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$(call cmd,force_checksrc)
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$(call if_changed_rule,cc_o_c)
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@{ echo $(@:.o=.ko); echo $@; } > $(MODVERDIR)/$(@F:.o=.mod)
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@ -215,7 +214,7 @@ quiet_cmd_cc_lst_c = MKLST $@
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$(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
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System.map $(OBJDUMP) > $@
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%.lst: %.c FORCE
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$(obj)/%.lst: $(src)/%.c FORCE
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$(call if_changed_dep,cc_lst_c)
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# Compile assembler sources (.S)
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@ -229,13 +228,13 @@ $(real-objs-m:.o=.s): modkern_aflags := $(AFLAGS_MODULE)
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quiet_cmd_as_s_S = CPP $(quiet_modtag) $@
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cmd_as_s_S = $(CPP) $(a_flags) -o $@ $<
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%.s: %.S FORCE
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$(obj)/%.s: $(src)/%.S FORCE
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$(call if_changed_dep,as_s_S)
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quiet_cmd_as_o_S = AS $(quiet_modtag) $@
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cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
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%.o: %.S FORCE
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$(obj)/%.o: $(src)/%.S FORCE
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$(call if_changed_dep,as_o_S)
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targets += $(real-objs-y) $(real-objs-m) $(lib-y)
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@ -246,7 +245,7 @@ targets += $(extra-y) $(MAKECMDGOALS) $(always)
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quiet_cmd_cpp_lds_S = LDS $@
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cmd_cpp_lds_S = $(CPP) $(cpp_flags) -D__ASSEMBLY__ -o $@ $<
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%.lds: %.lds.S FORCE
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$(obj)/%.lds: $(src)/%.lds.S FORCE
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$(call if_changed_dep,cpp_lds_S)
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# Build the compiled-in targets
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@ -114,7 +114,7 @@ hostcxx_flags = -Wp,-MD,$(depfile) $(__hostcxx_flags)
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quiet_cmd_host-csingle = HOSTCC $@
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cmd_host-csingle = $(HOSTCC) $(hostc_flags) -o $@ $< \
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$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
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$(host-csingle): %: %.c FORCE
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$(host-csingle): $(obj)/%: $(src)/%.c FORCE
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$(call if_changed_dep,host-csingle)
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# Link an executable based on list of .o files, all plain c
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@ -123,14 +123,14 @@ quiet_cmd_host-cmulti = HOSTLD $@
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cmd_host-cmulti = $(HOSTCC) $(HOSTLDFLAGS) -o $@ \
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$(addprefix $(obj)/,$($(@F)-objs)) \
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$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
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$(host-cmulti): %: $(host-cobjs) $(host-cshlib) FORCE
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$(host-cmulti): $(obj)/%: $(host-cobjs) $(host-cshlib) FORCE
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$(call if_changed,host-cmulti)
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# Create .o file from a single .c file
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# host-cobjs -> .o
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quiet_cmd_host-cobjs = HOSTCC $@
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cmd_host-cobjs = $(HOSTCC) $(hostc_flags) -c -o $@ $<
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$(host-cobjs): %.o: %.c FORCE
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$(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE
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$(call if_changed_dep,host-cobjs)
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# Link an executable based on list of .o files, a mixture of .c and .cc
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@ -140,20 +140,20 @@ quiet_cmd_host-cxxmulti = HOSTLD $@
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$(foreach o,objs cxxobjs,\
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$(addprefix $(obj)/,$($(@F)-$(o)))) \
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$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
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$(host-cxxmulti): %: $(host-cobjs) $(host-cxxobjs) $(host-cshlib) FORCE
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$(host-cxxmulti): $(obj)/%: $(host-cobjs) $(host-cxxobjs) $(host-cshlib) FORCE
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$(call if_changed,host-cxxmulti)
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# Create .o file from a single .cc (C++) file
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quiet_cmd_host-cxxobjs = HOSTCXX $@
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cmd_host-cxxobjs = $(HOSTCXX) $(hostcxx_flags) -c -o $@ $<
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$(host-cxxobjs): %.o: %.cc FORCE
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$(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE
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$(call if_changed_dep,host-cxxobjs)
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# Compile .c file, create position independent .o file
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# host-cshobjs -> .o
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quiet_cmd_host-cshobjs = HOSTCC -fPIC $@
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cmd_host-cshobjs = $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $<
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$(host-cshobjs): %.o: %.c FORCE
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$(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE
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$(call if_changed_dep,host-cshobjs)
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# Link a shared library, based on position independent .o files
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@ -162,7 +162,7 @@ quiet_cmd_host-cshlib = HOSTLLD -shared $@
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cmd_host-cshlib = $(HOSTCC) $(HOSTLDFLAGS) -shared -o $@ \
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$(addprefix $(obj)/,$($(@F:.so=-objs))) \
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$(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
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$(host-cshlib): %: $(host-cshobjs) FORCE
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$(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE
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$(call if_changed,host-cshlib)
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targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
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