+$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE
+ $(call cmd,force_checksrc)
+ $(call if_changed_rule,cc_o_c)
+ @{ echo $(@:.o=.ko); echo $@; } > $(MODVERDIR)/$(@F:.o=.mod)
+
+quiet_cmd_cc_lst_c = MKLST $@
+ cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
+ $(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
+ System.map $(OBJDUMP) > $@
+
+$(obj)/%.lst: $(src)/%.c FORCE
+ $(call if_changed_dep,cc_lst_c)
+
+# Compile assembler sources (.S)
+# ---------------------------------------------------------------------------
+
+modkern_aflags := $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)
+
+$(real-objs-m) : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
+$(real-objs-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
+
+quiet_cmd_as_s_S = CPP $(quiet_modtag) $@
+cmd_as_s_S = $(CPP) $(a_flags) -o $@ $<
+
+$(obj)/%.s: $(src)/%.S FORCE
+ $(call if_changed_dep,as_s_S)
+
+quiet_cmd_as_o_S = AS $(quiet_modtag) $@
+cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
+
+$(obj)/%.o: $(src)/%.S FORCE
+ $(call if_changed_dep,as_o_S)
+
+targets += $(real-objs-y) $(real-objs-m) $(lib-y)
+targets += $(extra-y) $(MAKECMDGOALS) $(always)
+
+# Linker scripts preprocessor (.lds.S -> .lds)
+# ---------------------------------------------------------------------------
+quiet_cmd_cpp_lds_S = LDS $@
+ cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -C -U$(ARCH) \
+ -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
+
+$(obj)/%.lds: $(src)/%.lds.S FORCE
+ $(call if_changed_dep,cpp_lds_S)
+
+# ASN.1 grammar
+# ---------------------------------------------------------------------------
+quiet_cmd_asn1_compiler = ASN.1 $@
+ cmd_asn1_compiler = $(objtree)/scripts/asn1_compiler $< \
+ $(subst .h,.c,$@) $(subst .c,.h,$@)
+
+.PRECIOUS: $(objtree)/$(obj)/%-asn1.c $(objtree)/$(obj)/%-asn1.h
+
+$(obj)/%-asn1.c $(obj)/%-asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
+ $(call cmd,asn1_compiler)
+
+# Build the compiled-in targets
+# ---------------------------------------------------------------------------
+
+# To build objects in subdirs, we need to descend into the directories
+$(sort $(subdir-obj-y)): $(subdir-ym) ;
+
+#
+# Rule to compile a set of .o files into one .o file
+#
+ifdef builtin-target
+quiet_cmd_link_o_target = LD $@
+# If the list of objects to link is empty, just create an empty built-in.o
+cmd_link_o_target = $(if $(strip $(obj-y)),\
+ $(LD) $(ld_flags) -r -o $@ $(filter $(obj-y), $^) \
+ $(cmd_secanalysis),\
+ rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS) $@)
+
+$(builtin-target): $(obj-y) FORCE
+ $(call if_changed,link_o_target)
+
+targets += $(builtin-target)
+endif # builtin-target
+
+#
+# Rule to create modules.order file
+#
+# Create commands to either record .ko file or cat modules.order from
+# a subdirectory
+modorder-cmds = \
+ $(foreach m, $(modorder), \
+ $(if $(filter %/modules.order, $m), \
+ cat $m;, echo kernel/$m;))
+
+$(modorder-target): $(subdir-ym) FORCE
+ $(Q)(cat /dev/null; $(modorder-cmds)) > $@
+
+#
+# Rule to compile a set of .o files into one .a file
+#
+ifdef lib-target
+quiet_cmd_link_l_target = AR $@
+cmd_link_l_target = rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS) $@ $(lib-y)
+
+$(lib-target): $(lib-y) FORCE
+ $(call if_changed,link_l_target)
+
+targets += $(lib-target)
+endif
+
+#
+# Rule to link composite objects
+#
+# Composite objects are specified in kbuild makefile as follows:
+# <composite-object>-objs := <list of .o files>
+# or
+# <composite-object>-y := <list of .o files>
+link_multi_deps = \
+$(filter $(addprefix $(obj)/, \
+$($(subst $(obj)/,,$(@:.o=-objs))) \
+$($(subst $(obj)/,,$(@:.o=-y)))), $^)
+
+quiet_cmd_link_multi-y = LD $@
+cmd_link_multi-y = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)
+
+quiet_cmd_link_multi-m = LD [M] $@
+cmd_link_multi-m = $(cmd_link_multi-y)
+
+$(multi-used-y): FORCE
+ $(call if_changed,link_multi-y)
+$(call multi_depend, $(multi-used-y), .o, -objs -y)
+
+$(multi-used-m): FORCE
+ $(call if_changed,link_multi-m)
+ @{ echo $(@:.o=.ko); echo $(link_multi_deps); } > $(MODVERDIR)/$(@F:.o=.mod)
+$(call multi_depend, $(multi-used-m), .o, -objs -y)
+
+targets += $(multi-used-y) $(multi-used-m)
+
+
+# Add intermediate targets:
+# When building objects with specific suffix patterns, add intermediate
+# targets that the final targets are derived from.
+intermediate_targets = $(foreach sfx, $(2), \
+ $(patsubst %$(strip $(1)),%$(sfx), \
+ $(filter %$(strip $(1)), $(targets))))
+# %.lex.o <- %.lex.c <- %.l
+# %.tab.o <- %.tab.[ch] <- %.y
+targets += $(call intermediate_targets, .lex.o, .lex.c) \
+ $(call intermediate_targets, .tab.o, .tab.c .tab.h)
+
+# Descending
+# ---------------------------------------------------------------------------
+
+PHONY += $(subdir-ym)
+$(subdir-ym):
+ $(Q)$(MAKE) $(build)=$@
+
+# Add FORCE to the prequisites of a target to force it to be always rebuilt.
+# ---------------------------------------------------------------------------
+
+PHONY += FORCE
+
+FORCE:
+
+# Read all saved command lines and dependencies for the $(targets) we
+# may be building above, using $(if_changed{,_dep}). As an
+# optimization, we don't need to read them if the target does not
+# exist, we will rebuild anyway in that case.
+
+targets := $(wildcard $(sort $(targets)))
+cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
+
+ifneq ($(cmd_files),)
+ include $(cmd_files)
+endif