Makefile: Make full use of src-to-obj macro

There were several spots in the tree where the path to a per class
object file was hardcoded. To make use of the src-to-obj macro for
this, it had to be moved before the inclusion of subdirs. Which is
fine, as it doesn't have dependencies beside $(obj).

Tested by verifying that the resulting coreboot.rom files didn't change
for all of Jenkins' abuild configurations.

Change-Id: I2eb1beeb8ae55872edfd95f750d7d5a1cee474c4
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/13180
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

11 files changed, 57 insertions, 64 deletions

diff --git a/Makefile b/Makefile
index c46c4d8eb9..3652559595 100644
--- a/Makefile
+++ b/Makefile
@@ -180,6 +180,12 @@ add-special-class= \
 	$(eval $(1):=) \
 	$(eval special-classes+=$(1))
 
+# Converts one or more source file paths to their corresponding build/ paths.
+# Only .c and .S get converted to .o, other files (like .ld) keep their name.
+# $1 stage name
+# $2 file path (list)
+src-to-obj=$(foreach file,$(2),$(subst .$(1),,$(basename $(patsubst src/%,$(obj)/%,$(file)))).$(1)$(patsubst %.c,%.o,$(patsubst %.S,%.o,$(suffix $(file)))))
+
 # Clean -y variables, include Makefile.inc
 # Add paths to files in X-y to X-srcs
 # Add subdirs-y to subdirs
@@ -215,12 +221,6 @@ endif
 # Eliminate duplicate mentions of source files in a class
 $(foreach class,$(classes),$(eval $(class)-srcs:=$(sort $($(class)-srcs))))
 
-# Converts one or more source file paths to their corresponding build/ paths.
-# Only .c and .S get converted to .o, other files (like .ld) keep their name.
-# $1 stage name
-# $2 file path (list)
-src-to-obj=$(foreach file,$(2),$(subst .$(1),,$(basename $(patsubst src/%,$(obj)/%,$(file)))).$(1)$(patsubst %.c,%.o,$(patsubst %.S,%.o,$(suffix $(file)))))
-
 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class),$($(class)-srcs))))
 
 # Save all objs before processing them (for dependency inclusion)
diff --git a/src/arch/arm/Makefile.inc b/src/arch/arm/Makefile.inc
index 6675360c4a..b04a3dbd12 100644
--- a/src/arch/arm/Makefile.inc
+++ b/src/arch/arm/Makefile.inc
@@ -45,7 +45,7 @@ endif # CONFIG_ARCH_ARM
 ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARM),y)
 
 bootblock-y += id.S
-$(obj)/arch/arm/id.bootblock.o: $(obj)/build.h
+$(call src-to-obj,bootblock,$(dir)/id.S): $(obj)/build.h
 
 bootblock-y += boot.c
 bootblock-y += stages.c
@@ -58,7 +58,7 @@ bootblock-y += clock.c
 
 $(objcbfs)/bootblock.debug: $$(bootblock-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
-	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.bootblock.ld --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) --end-group
+	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) -T $(call src-to-obj,bootblock,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) --end-group
 
 endif # CONFIG_ARCH_BOOTBLOCK_ARM
 
@@ -70,7 +70,7 @@ ifeq ($(CONFIG_ARCH_VERSTAGE_ARM),y)
 
 $(objcbfs)/verstage.debug: $(objgenerated)/libverstage.a $$(verstage-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
-	$(LD_verstage) $(LDFLAGS_verstage) -o $@ -L$(obj) -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.verstage.ld --whole-archive --start-group $(filter-out %.ld,$(verstage-objs)) $(objgenerated)/libverstage.a --end-group
+	$(LD_verstage) $(LDFLAGS_verstage) -o $@ -L$(obj) -T $(call src-to-obj,verstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(verstage-objs)) $(objgenerated)/libverstage.a --end-group
 
 verstage-y += boot.c
 verstage-y += div0.c
@@ -103,7 +103,7 @@ rmodules_arm-y += eabi_compat.c
 
 $(objcbfs)/romstage.debug: $$(romstage-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
-	$(LD_romstage) $(LDFLAGS_romstage) -o $@ -L$(obj) -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.romstage.ld --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) --end-group
+	$(LD_romstage) $(LDFLAGS_romstage) -o $@ -L$(obj) -T $(call src-to-obj,romstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) --end-group
 
 endif # CONFIG_ARCH_ROMSTAGE_ARM
 
@@ -132,6 +132,6 @@ ramstage-srcs += $(wildcard src/mainboard/$(MAINBOARDDIR)/mainboard.c)
 
 $(objcbfs)/ramstage.debug: $$(ramstage-objs)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(LD_ramstage) $(LDFLAGS_ramstage) -o $@ -L$(obj) -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.ramstage.ld --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) --end-group
+	$(LD_ramstage) $(LDFLAGS_ramstage) -o $@ -L$(obj) -T $(call src-to-obj,ramstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) --end-group
 
 endif # CONFIG_ARCH_RAMSTAGE_ARM
diff --git a/src/arch/arm64/Makefile.inc b/src/arch/arm64/Makefile.inc
index 0320fa7706..33755d3035 100644
--- a/src/arch/arm64/Makefile.inc
+++ b/src/arch/arm64/Makefile.inc
@@ -41,7 +41,7 @@ ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARM64),y)
 
 bootblock-y += div0.c
 bootblock-y += id.S
-$(obj)/arch/arm64/id.bootblock.o: $(obj)/build.h
+$(call src-to-obj,bootblock,$(dir)/id.S): $(obj)/build.h
 
 bootblock-y += boot.c
 bootblock-y += eabi_compat.c
@@ -55,7 +55,7 @@ bootblock-y += memmove.S
 
 $(objcbfs)/bootblock.debug: $$(bootblock-objs) $(obj)/config.h
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
-	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) --end-group -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.bootblock.ld
+	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) --end-group -T $(call src-to-obj,bootblock,src/mainboard/$(MAINBOARDDIR)/memlayout.ld)
 
 endif # CONFIG_ARCH_BOOTBLOCK_ARM64
 
@@ -67,7 +67,7 @@ ifeq ($(CONFIG_ARCH_VERSTAGE_ARM64),y)
 
 $(objcbfs)/verstage.debug: $(objgenerated)/libverstage.a $$(verstage-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
-	$(LD_verstage) $(LDFLAGS_verstage) -o $@ -L$(obj) --whole-archive --start-group $(filter-out %.ld,$(verstage-objs)) $(objgenerated)/libverstage.a --end-group -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.verstage.ld
+	$(LD_verstage) $(LDFLAGS_verstage) -o $@ -L$(obj) --whole-archive --start-group $(filter-out %.ld,$(verstage-objs)) $(objgenerated)/libverstage.a --end-group -T $(call src-to-obj,verstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld)
 
 verstage-y += boot.c
 verstage-y += div0.c
@@ -101,7 +101,7 @@ rmodules_arm64-y += eabi_compat.c
 
 $(objcbfs)/romstage.debug: $$(romstage-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
-	$(LD_romstage) $(LDFLAGS_romstage) -o $@ -L$(obj) --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) --end-group -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.romstage.ld
+	$(LD_romstage) $(LDFLAGS_romstage) -o $@ -L$(obj) --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) --end-group -T $(call src-to-obj,romstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld)
 
 endif # CONFIG_ARCH_ROMSTAGE_ARM64
 
@@ -132,7 +132,7 @@ ramstage-srcs += $(wildcard src/mainboard/$(MAINBOARDDIR)/mainboard.c)
 
 $(objcbfs)/ramstage.debug: $$(ramstage-objs)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(LD_ramstage) $(LDFLAGS_ramstage) -o $@ -L$(obj) --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) --end-group -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.ramstage.ld
+	$(LD_ramstage) $(LDFLAGS_ramstage) -o $@ -L$(obj) --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) --end-group -T $(call src-to-obj,ramstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld)
 
 # Build ARM Trusted Firmware (BL31)
 
diff --git a/src/arch/mips/Makefile.inc b/src/arch/mips/Makefile.inc
index bdbe89e2f6..a037525419 100644
--- a/src/arch/mips/Makefile.inc
+++ b/src/arch/mips/Makefile.inc
@@ -46,7 +46,7 @@ bootblock-S-ccopts += -undef
 
 $(objcbfs)/bootblock.debug: $$(bootblock-objs) $(obj)/config.h
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
-	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.bootblock.ld --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) --end-group
+	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) -T $(call src-to-obj,bootblock,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) --end-group
 
 endif # CONFIG_ARCH_BOOTBLOCK_MIPS
 
@@ -66,7 +66,7 @@ romstage-y += ../../lib/memset.c
 
 $(objcbfs)/romstage.debug: $$(romstage-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
-	$(LD_romstage) $(LDFLAGS_romstage) -o $@ -L$(obj) -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.romstage.ld --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) --end-group
+	$(LD_romstage) $(LDFLAGS_romstage) -o $@ -L$(obj) -T $(call src-to-obj,romstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) --end-group
 
 endif # CONFIG_ARCH_ROMSTAGE_MIPS
 
@@ -90,6 +90,6 @@ ramstage-srcs += $(wildcard src/mainboard/$(MAINBOARDDIR)/mainboard.c)
 
 $(objcbfs)/ramstage.debug: $$(ramstage-objs)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(LD_ramstage) $(LDFLAGS_ramstage) -o $@ -L$(obj) -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.ramstage.ld --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) --end-group
+	$(LD_ramstage) $(LDFLAGS_ramstage) -o $@ -L$(obj) -T $(call src-to-obj,ramstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) --end-group
 
 endif # CONFIG_ARCH_RAMSTAGE_MIPS
diff --git a/src/arch/riscv/Makefile.inc b/src/arch/riscv/Makefile.inc
index aafce1af75..2d4d7e6c25 100644
--- a/src/arch/riscv/Makefile.inc
+++ b/src/arch/riscv/Makefile.inc
@@ -40,7 +40,7 @@ bootblock-y += \
 $(objcbfs)/bootblock.debug: $$(bootblock-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
 	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) \
-		-T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.bootblock.ld --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) \
+		-T $(call src-to-obj,bootblock,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(bootblock-objs)) \
 		$(LIBGCC_FILE_NAME_bootblock) --end-group $(COMPILER_RT_bootblock)
 
 endif
@@ -66,7 +66,7 @@ romstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
 
 $(objcbfs)/romstage.debug: $$(romstage-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
-	$(LD_romstage) $(LDFLAGS_romstage) -o $@ -L$(obj) -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.romstage.ld --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) --end-group $(COMPILER_RT_romstage)
+	$(LD_romstage) $(LDFLAGS_romstage) -o $@ -L$(obj) -T $(call src-to-obj,romstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) --end-group $(COMPILER_RT_romstage)
 
 romstage-c-ccopts += $(riscv_flags)
 romstage-S-ccopts += $(riscv_asm_flags)
@@ -105,7 +105,7 @@ ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/mainboard.c
 
 $(objcbfs)/ramstage.debug: $$(ramstage-objs)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(LD_ramstage) $(LDFLAGS_ramstage) -o $@ -L$(obj) -T $(obj)/mainboard/$(MAINBOARDDIR)/memlayout.ramstage.ld --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) --end-group $(COMPILER_RT_ramstage)
+	$(LD_ramstage) $(LDFLAGS_ramstage) -o $@ -L$(obj) -T $(call src-to-obj,ramstage,src/mainboard/$(MAINBOARDDIR)/memlayout.ld) --whole-archive --start-group $(filter-out %.ld,$(ramstage-objs)) --end-group $(COMPILER_RT_ramstage)
 
 ramstage-c-ccopts += $(riscv_flags)
 ramstage-S-ccopts += $(riscv_asm_flags)
diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc
index bc4a7d4b51..82b8ae36f9 100644
--- a/src/arch/x86/Makefile.inc
+++ b/src/arch/x86/Makefile.inc
@@ -75,7 +75,7 @@ define early_x86_assembly_entry_rule
 # the right order. Make sure the auto generated assembly.inc is a proper
 # dependency.
 $(1)-y += assembly_entry.S
-$$(obj)/arch/x86/assembly_entry.$(1).o: $(objgenerated)/assembly.inc
+$(call src-to-obj,$(1),$(dir)/assembly_entry.S): $(objgenerated)/assembly.inc
 endef
 
 define early_x86_stage
@@ -88,7 +88,7 @@ $(1)-S-ccopts += -I.
 
 $$(objcbfs)/$(1).debug: $$$$($(1)-libs) $$$$($(1)-objs)
 	@printf "    LINK       $$(subst $$(obj)/,,$$(@))\n"
-	$$(LD_$(1)) $$(LDFLAGS_$(1)) -o $$@ -L$$(obj) $$(COMPILER_RT_FLAGS_$(1)) --whole-archive --start-group $$(filter-out %.ld,$$($(1)-objs)) $$($(1)-libs) --no-whole-archive $$(COMPILER_RT_$(1)) --end-group -T $$(obj)/arch/x86/memlayout.$(1).ld --oformat $(2)
+	$$(LD_$(1)) $$(LDFLAGS_$(1)) -o $$@ -L$$(obj) $$(COMPILER_RT_FLAGS_$(1)) --whole-archive --start-group $$(filter-out %.ld,$$($(1)-objs)) $$($(1)-libs) --no-whole-archive $$(COMPILER_RT_$(1)) --end-group -T $(call src-to-obj,$(1),$(dir)/memlayout.ld) --oformat $(2)
 	-LANG=C LC_ALL= $$(OBJCOPY_$(1)) --only-section .illegal_globals $$(@) $$(objcbfs)/$(1)_null.offenders >/dev/null 2>&1
 	if [ -z "$$$$($$(NM_$(1)) $$(objcbfs)/$(1)_null.offenders 2>&1 | grep 'no symbols')" ];then \
 		echo "Forbidden global variables in $(1):"; \
@@ -111,7 +111,7 @@ bootblock-y += mmap_boot.c
 # the right order. Make sure the auto generated bootblock.inc is a proper
 # dependency. Make the same true for the linker sript.
 bootblock-y += id.S
-$(obj)/arch/x86/id.bootblock.o: $(obj)/build.h
+$(call src-to-obj,bootblock,$(dir)/id.S): $(obj)/build.h
 
 ifeq ($(CONFIG_C_ENVIRONMENT_BOOTBLOCK),y)
 
@@ -134,10 +134,10 @@ endif
 
 bootblock-y += bootblock.S
 bootblock-y += walkcbfs.S
-$(obj)/arch/x86/bootblock.bootblock.o: $(objgenerated)/bootblock.inc
+$(call src-to-obj,bootblock,$(dir)/bootblock.S): $(objgenerated)/bootblock.inc
 
 bootblock-y += bootblock.ld
-$(obj)/arch/x86/bootblock.bootblock.ld: $(objgenerated)/bootblock.ld
+$(call src-to-obj,bootblock,$(dir)/bootblock.ld): $(objgenerated)/bootblock.ld
 
 bootblock_romccflags := -mcpu=i386 -O2 -D__PRE_RAM__ -D__BOOTBLOCK__
 ifeq ($(CONFIG_SSE),y)
@@ -148,7 +148,7 @@ endif
 $(objgenerated)/empty: build-dirs
 	touch $@
 
-$(objgenerated)/bootblock.ld: $$(filter-out $(obj)/arch/x86/bootblock.bootblock.ld, $$(filter %.ld,$$(bootblock-objs))) $(objgenerated)/empty
+$(objgenerated)/bootblock.ld: $$(filter-out $(call src-to-obj,bootblock,src/arch/x86/bootblock.ld), $$(filter %.ld,$$(bootblock-objs))) $(objgenerated)/empty
 	@printf "    GEN        $(subst $(obj)/,,$(@))\n"
 	cat $^ >> $@.tmp
 	mv $@.tmp $@
@@ -160,12 +160,12 @@ $(objgenerated)/bootblock.inc: $(src)/arch/x86/$(subst ",,$(CONFIG_BOOTBLOCK_SOU
 		$< > $(objgenerated)/bootblock.inc.d
 	$(ROMCC) -c -S $(bootblock_romccflags) -I. $(CPPFLAGS_bootblock) $< -o $@
 
-# $(obj)/arch/x86/bootblock.bootblock.ld is part of $(bootblock-objs)
+# bootblock.ld is part of $(bootblock-objs)
 $(objcbfs)/bootblock.debug: $$(bootblock-objs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
 	$(LD_bootblock) $(LDFLAGS_bootblock) -o $@ -L$(obj) \
 		$(filter-out %.ld,$(bootblock-objs)) \
-		-T $(obj)/arch/x86/bootblock.bootblock.ld
+		-T $(call src-to-obj,bootblock,src/arch/x86/bootblock.ld)
 
 endif # C_ENVIRONMENT_BOOTBLOCK
 
@@ -328,9 +328,9 @@ endif
 
 ramstage-y += memlayout.ld
 
-$(objcbfs)/ramstage.debug: $(objgenerated)/ramstage.o $(obj)/arch/x86/memlayout.ramstage.ld
+$(objcbfs)/ramstage.debug: $(objgenerated)/ramstage.o $(call src-to-obj,ramstage,src/arch/x86/memlayout.ld)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(LD_ramstage) $(CPPFLAGS) $(LDFLAGS_ramstage) -o $@ -L$(obj) $< -T $(obj)/arch/x86/memlayout.ramstage.ld
+	$(LD_ramstage) $(CPPFLAGS) $(LDFLAGS_ramstage) -o $@ -L$(obj) $< -T $(call src-to-obj,ramstage,src/arch/x86/memlayout.ld)
 
 $(objgenerated)/ramstage.o: $$(ramstage-objs) $(COMPILER_RT_ramstage) $$(ramstage-libs)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
diff --git a/src/cpu/ti/am335x/Makefile.inc b/src/cpu/ti/am335x/Makefile.inc
index 8e8dab1e98..f07564eaf5 100644
--- a/src/cpu/ti/am335x/Makefile.inc
+++ b/src/cpu/ti/am335x/Makefile.inc
@@ -22,7 +22,7 @@ $(eval $(call create_class_compiler,omap-header,arm))
 
 real-target: $(obj)/MLO
 
-header_ld = $(obj)/cpu/ti/am335x/header.omap-header.ld
+header_ld := $(call src-to-obj,omap-header,$(dir)/header.ld)
 
 get_header_size= \
 	$(eval omap_header_info=$(shell $(CBFSTOOL) $(1) print | grep $(2))) \
diff --git a/src/cpu/x86/Makefile.inc b/src/cpu/x86/Makefile.inc
index 863fabc589..ae81ab4f1c 100644
--- a/src/cpu/x86/Makefile.inc
+++ b/src/cpu/x86/Makefile.inc
@@ -16,7 +16,7 @@ ramstage-srcs += $(SIPI_BIN).manual
 endif
 rmodules_$(ARCH-ramstage-y)-$(CONFIG_PARALLEL_MP) += sipi_vector.S
 
-$(SIPI_DOTO): $(dir $(SIPI_ELF))sipi_vector.rmodules_$(ARCH-ramstage-y).o
+$(SIPI_DOTO): $(call src-to-obj,rmodules_$(ARCH-ramstage-y),src/cpu/x86/sipi_vector.S)
 	$(CC_rmodules_$(ARCH-ramstage-y)) $(CFLAGS_rmodules_$(ARCH-ramstage-y)) -nostdlib -r -o $@ $^
 
 ifeq ($(CONFIG_ARCH_RAMSTAGE_X86_32),y)
@@ -28,6 +28,6 @@ endif
 $(SIPI_BIN): $(SIPI_RMOD)
 	$(OBJCOPY_ramstage) -O binary $< $@
 
-$(SIPI_BIN).ramstage.manual: $(SIPI_BIN)
+$(call src-to-obj,ramstage,$(SIPI_BIN).manual): $(SIPI_BIN)
 	@printf "    OBJCOPY    $(subst $(obj)/,,$(@))\n"
 	cd $(dir $@); $(OBJCOPY_rmodules_$(ARCH-ramstage-y)) -I binary $(notdir $<) $(target-objcopy) $(notdir $@)
diff --git a/src/cpu/x86/smm/Makefile.inc b/src/cpu/x86/smm/Makefile.inc
index c4b08fe5cb..46abd05ced 100644
--- a/src/cpu/x86/smm/Makefile.inc
+++ b/src/cpu/x86/smm/Makefile.inc
@@ -32,7 +32,7 @@ $(obj)/cpu/x86/smm/smm.o: $$(smm-objs) $(COMPILER_RT_smm)
 
 # change to the target path because objcopy will use the path name in its
 # ELF symbol names.
-$(obj)/cpu/x86/smm/smm.ramstage.manual: $(obj)/cpu/x86/smm/smm
+$(call src-to-obj,ramstage,$(obj)/cpu/x86/smm/smm.manual): $(obj)/cpu/x86/smm/smm
 	@printf "    OBJCOPY    $(subst $(obj)/,,$(@))\n"
 	cd $(dir $@); $(OBJCOPY_smm) -I binary $(notdir $<) $(target-objcopy) $(notdir $@)
 
@@ -62,7 +62,7 @@ endif
 $(obj)/cpu/x86/smm/smmstub: $(obj)/cpu/x86/smm/smmstub.elf.rmod
 	$(OBJCOPY_smmstub) -O binary $< $@
 
-$(obj)/cpu/x86/smm/smmstub.ramstage.manual: $(obj)/cpu/x86/smm/smmstub
+$(call src-to-obj,ramstage,$(obj)/cpu/x86/smm/smmstub.manual): $(obj)/cpu/x86/smm/smmstub
 	@printf "    OBJCOPY    $(subst $(obj)/,,$(@))\n"
 	cd $(dir $@); $(OBJCOPY_smmstub) -I binary $(notdir $<) $(target-objcopy) $(notdir $@)
 
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index 5e788c0589..7eb91082b3 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -167,11 +167,11 @@ ramstage-y += version.c
 smm-y += version.c
 verstage-y += version.c
 
-$(obj)/lib/version.bootblock.o : $(obj)/build.h
-$(obj)/lib/version.romstage.o : $(obj)/build.h
-$(obj)/lib/version.ramstage.o : $(obj)/build.h
-$(obj)/lib/version.smm.o : $(obj)/build.h
-$(obj)/lib/version.verstage.o : $(obj)/build.h
+$(call src-to-obj,bootblock,$(dir)/version.c) : $(obj)/build.h
+$(call src-to-obj,romstage,$(dir)/version.c) : $(obj)/build.h
+$(call src-to-obj,ramstage,$(dir)/version.c) : $(obj)/build.h
+$(call src-to-obj,smm,$(dir)/version.c) : $(obj)/build.h
+$(call src-to-obj,verstage,$(dir)/version.c) : $(obj)/build.h
 
 romstage-y += bootmode.c
 ramstage-y += bootmode.c
@@ -202,8 +202,8 @@ RMODULE_LDFLAGS  := -z defs -Bsymbolic
 # It will create the necessary Make rules to create a rmodule. The resulting
 # rmdoule is named $(1).rmod
 define rmodule_link
-$(strip $(1)): $(strip $(2)) $$(COMPILER_RT_rmodules_$(4)) $(obj)/lib/rmodule.rmodules_$(4).ld | $$(RMODTOOL)
-	$$(LD_rmodules_$(4)) $$(LDFLAGS_rmodules_$(4)) $(RMODULE_LDFLAGS) -T $(obj)/lib/rmodule.rmodules_$(4).ld --defsym=__heap_size=$(strip $(3)) -o $$@ --whole-archive --start-group $(filter-out %.ld,$(2)) --end-group
+$(strip $(1)): $(strip $(2)) $$(COMPILER_RT_rmodules_$(4)) $(call src-to-obj,rmodules_$(4),src/lib/rmodule.ld) | $$(RMODTOOL)
+	$$(LD_rmodules_$(4)) $$(LDFLAGS_rmodules_$(4)) $(RMODULE_LDFLAGS) -T $(call src-to-obj,rmodules_$(4),src/lib/rmodule.ld) --defsym=__heap_size=$(strip $(3)) -o $$@ --whole-archive --start-group $(filter-out %.ld,$(2)) --end-group
 	$$(NM_rmodules_$(4)) -n $$@ > $$(basename $$@).map
 endef
 
diff --git a/src/vendorcode/amd/pi/Makefile.inc b/src/vendorcode/amd/pi/Makefile.inc
index 79d6171d95..4aa8906d43 100644
--- a/src/vendorcode/amd/pi/Makefile.inc
+++ b/src/vendorcode/amd/pi/Makefile.inc
@@ -81,22 +81,21 @@ CC_x86_64 := $(CC_x86_64) $(AGESA_INC) $(AGESA_CFLAGS)
 #######################################################################
 
 define create_agesa_cp_template
-
 # $1 AGESA source file
-# $2 AGESA copy-to location
-$(agesa_src_path)/$(notdir $2): $2 $(agesa_src_path)
-	@printf "    AGESA      Copying $$(notdir $2) => $$(@D)\n"
-	if [ ! -r $(agesa_src_path)/$(notdir $2) ]; then                   \
-		cp -f $2 $$(@D);                                           \
+
+$(agesa_src_path)/$(notdir $1): $1
+	@printf "    AGESA      Copying $$(notdir $1) => $$(@D)\n"
+	if [ ! -r $(agesa_src_path)/$(notdir $1) ]; then                   \
+		cp -f $1 $$(@D);                                           \
 	fi
 
-$(agesa_obj_path)/$1.libagesa.o: $(agesa_src_path)/$(notdir $2) $(obj)/config.h $(src)/include/kconfig.h $(agesa_obj_path)
-	@printf "    CC         $(subst $(agesa_obj_path)/,,$$(@))\n"
+$(call src-to-obj,libagesa,$1): $(agesa_src_path)/$(notdir $1) $(obj)/config.h $(src)/include/kconfig.h
+	@printf "    CC         $$(subst $(obj)/,,$$(@))\n"
 	$(CC_libagesa) -c -MMD $(CFLAGS_libagesa) $(AGESA_CFLAGS)                 \
 	               $(AGESA_INC)                                               \
 	               -include $(obj)/config.h -include $(src)/include/kconfig.h \
 	               -o $$@                                                     \
-	               $(agesa_src_path)/$(notdir $2)
+	               $(agesa_src_path)/$(notdir $1)
 
 endef
 
@@ -120,21 +119,15 @@ $(eval $(call create_class_compiler,libagesa,x86_64))
 endif
 
 agesa_src_files := $(strip $(sort $(foreach file,$(strip $(agesa_raw_files)),$(call strip_quotes,$(file)))))
-agesa_obj_path := $(strip $(obj)/vendorcode/amd)
 agesa_src_path := $(strip $(obj)/agesa)
-agesa_src_copies := $(strip $(foreach file,$(agesa_src_files),$(agesa_obj_path)/$(notdir $(file))))
-agesa_obj_copies := $(strip $(agesa_src_copies:.c=.libagesa.o))
-
-$(agesa_src_path):
-	mkdir -p $@
+agesa_dirs := $(sort $(abspath $(dir $(call src-to-obj,libagesa,$(agesa_src_files)))))
 
-$(agesa_obj_path):
-	mkdir -p $@
+additional-dirs += $(agesa_src_path) $(agesa_dirs)
 
-$(foreach file,$(strip $(agesa_src_files)),$(eval $(call create_agesa_cp_template,$(basename $(notdir $(file))),$(file))))
+$(foreach file,$(strip $(agesa_src_files)),$(eval $(call create_agesa_cp_template,$(file))))
 
-$(obj)/agesa/libagesa.a: $(agesa_obj_copies)
-	@printf "    AGESA      $(subst $(agesa_obj_path)/,,$(@))\n"
+$(obj)/agesa/libagesa.a: $(call src-to-obj,libagesa,$(agesa_src_files))
+	@printf "    AGESA      $(subst $(obj)/,,$(@))\n"
 	ar rcs $@ $+
 
 romstage-libs += $(obj)/agesa/libagesa.a