Move object files to $(obj)/<class>/

Instead of tagging object files with .<class>, move them to a <class>
directory below $(obj)/. This way we can keep a 1:1 mapping between
source- and object-file names.

The 1:1 mapping is a prerequisite for Ada, where the compiler refuses
any other object-file name.

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

Change-Id: Idb7a8abec4ea0a37021d9fc24cc8583c4d3bf67c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/13181
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)

2 files changed, 19 insertions, 17 deletions

diff --git a/src/cpu/x86/Makefile.inc b/src/cpu/x86/Makefile.inc
index ae81ab4f1c..0efbdd7553 100644
--- a/src/cpu/x86/Makefile.inc
+++ b/src/cpu/x86/Makefile.inc
@@ -6,6 +6,8 @@ subdirs-$(CONFIG_PARALLEL_MP) += name
 ramstage-$(CONFIG_PARALLEL_MP) += mp_init.c
 ramstage-$(CONFIG_MIRROR_PAYLOAD_TO_RAM_BEFORE_LOADING) += mirror_payload.c
 
+additional-dirs += $(obj)/cpu/x86
+
 SIPI_ELF=$(obj)/cpu/x86/sipi_vector.elf
 SIPI_RMOD=$(SIPI_ELF).rmod
 SIPI_BIN=$(SIPI_ELF:.elf=)
@@ -30,4 +32,4 @@ $(SIPI_BIN): $(SIPI_RMOD)
 
 $(call src-to-obj,ramstage,$(SIPI_BIN).manual): $(SIPI_BIN)
 	@printf "    OBJCOPY    $(subst $(obj)/,,$(@))\n"
-	cd $(dir $@); $(OBJCOPY_rmodules_$(ARCH-ramstage-y)) -I binary $(notdir $<) $(target-objcopy) $(notdir $@)
+	cd $(dir $<); $(OBJCOPY_rmodules_$(ARCH-ramstage-y)) -I binary $(notdir $<) $(target-objcopy) $(abspath $@)
diff --git a/src/cpu/x86/smm/Makefile.inc b/src/cpu/x86/smm/Makefile.inc
index 46abd05ced..c912a8f271 100644
--- a/src/cpu/x86/smm/Makefile.inc
+++ b/src/cpu/x86/smm/Makefile.inc
@@ -27,14 +27,14 @@ smmstub-generic-ccopts += -D__SMM__
 smm-generic-ccopts += -D__SMM__
 smm-c-deps:=$$(OPTION_TABLE_H)
 
-$(obj)/cpu/x86/smm/smm.o: $$(smm-objs) $(COMPILER_RT_smm)
+$(obj)/smm/smm.o: $$(smm-objs) $(COMPILER_RT_smm)
 	$(LD_smm) -nostdlib -r -o $@ $(COMPILER_RT_FLAGS_smm) --whole-archive --start-group $(smm-objs) --no-whole-archive $(COMPILER_RT_smm) --end-group
 
 # change to the target path because objcopy will use the path name in its
 # ELF symbol names.
-$(call src-to-obj,ramstage,$(obj)/cpu/x86/smm/smm.manual): $(obj)/cpu/x86/smm/smm
+$(call src-to-obj,ramstage,$(obj)/cpu/x86/smm/smm.manual): $(obj)/smm/smm
 	@printf "    OBJCOPY    $(subst $(obj)/,,$(@))\n"
-	cd $(dir $@); $(OBJCOPY_smm) -I binary $(notdir $<) $(target-objcopy) $(notdir $@)
+	cd $(dir $<); $(OBJCOPY_smm) -I binary $(notdir $<) $(target-objcopy) $(abspath $@)
 
 ifeq ($(CONFIG_SMM_TSEG),y)
 
@@ -49,40 +49,40 @@ ramstage-srcs += $(obj)/cpu/x86/smm/smmstub.manual
 
 # SMM Stub Module. The stub is used as a trampoline for relocation and normal
 # SMM handling.
-$(obj)/cpu/x86/smm/smmstub.o: $$(smmstub-objs)
+$(obj)/smmstub/smmstub.o: $$(smmstub-objs)
 	$(CC_smmstub) $(CFLAGS_smmstub) -nostdlib -r -o $@ $^
 
 # Link the SMM stub module with a 0-byte heap.
 ifeq ($(CONFIG_ARCH_RAMSTAGE_X86_32),y)
-$(eval $(call rmodule_link,$(obj)/cpu/x86/smm/smmstub.elf, $(obj)/cpu/x86/smm/smmstub.o, 0,x86_32))
+$(eval $(call rmodule_link,$(obj)/smmstub/smmstub.elf, $(obj)/smmstub/smmstub.o, 0,x86_32))
 else
-$(eval $(call rmodule_link,$(obj)/cpu/x86/smm/smmstub.elf, $(obj)/cpu/x86/smm/smmstub.o, 0,x86_64))
+$(eval $(call rmodule_link,$(obj)/smmstub/smmstub.elf, $(obj)/smmstub/smmstub.o, 0,x86_64))
 endif
 
-$(obj)/cpu/x86/smm/smmstub: $(obj)/cpu/x86/smm/smmstub.elf.rmod
+$(obj)/smmstub/smmstub: $(obj)/smmstub/smmstub.elf.rmod
 	$(OBJCOPY_smmstub) -O binary $< $@
 
-$(call src-to-obj,ramstage,$(obj)/cpu/x86/smm/smmstub.manual): $(obj)/cpu/x86/smm/smmstub
+$(call src-to-obj,ramstage,$(obj)/cpu/x86/smm/smmstub.manual): $(obj)/smmstub/smmstub
 	@printf "    OBJCOPY    $(subst $(obj)/,,$(@))\n"
-	cd $(dir $@); $(OBJCOPY_smmstub) -I binary $(notdir $<) $(target-objcopy) $(notdir $@)
+	cd $(dir $<); $(OBJCOPY_smmstub) -I binary $(notdir $<) $(target-objcopy) $(abspath $@)
 
 # C-based SMM handler.
 
 ifeq ($(CONFIG_ARCH_RAMSTAGE_X86_32),y)
-$(eval $(call rmodule_link,$(obj)/cpu/x86/smm/smm.elf, $(obj)/cpu/x86/smm/smm.o, $(CONFIG_SMM_MODULE_HEAP_SIZE),x86_32))
+$(eval $(call rmodule_link,$(obj)/smm/smm.elf, $(obj)/smm/smm.o, $(CONFIG_SMM_MODULE_HEAP_SIZE),x86_32))
 else
-$(eval $(call rmodule_link,$(obj)/cpu/x86/smm/smm.elf, $(obj)/cpu/x86/smm/smm.o, $(CONFIG_SMM_MODULE_HEAP_SIZE),x86_64))
+$(eval $(call rmodule_link,$(obj)/smm/smm.elf, $(obj)/smm/smm.o, $(CONFIG_SMM_MODULE_HEAP_SIZE),x86_64))
 endif
 
-$(obj)/cpu/x86/smm/smm: $(obj)/cpu/x86/smm/smm.elf.rmod
+$(obj)/smm/smm: $(obj)/smm/smm.elf.rmod
 	$(OBJCOPY_smm) -O binary $< $@
 
 else # CONFIG_SMM_TSEG
 
-$(obj)/cpu/x86/smm/smm: $(obj)/cpu/x86/smm/smm.o $(src)/cpu/x86/smm/smm.ld
-	$(LD_smm) $(LDFLAGS_smm) -o $(obj)/cpu/x86/smm/smm.elf -T $(src)/cpu/x86/smm/smm.ld $(obj)/cpu/x86/smm/smm.o
-	$(NM_smm) -n $(obj)/cpu/x86/smm/smm.elf | sort > $(obj)/cpu/x86/smm/smm.map
-	$(OBJCOPY_smm) -O binary $(obj)/cpu/x86/smm/smm.elf $@
+$(obj)/smm/smm: $(obj)/smm/smm.o $(src)/cpu/x86/smm/smm.ld
+	$(LD_smm) $(LDFLAGS_smm) -o $(obj)/smm/smm.elf -T $(src)/cpu/x86/smm/smm.ld $(obj)/smm/smm.o
+	$(NM_smm) -n $(obj)/smm/smm.elf | sort > $(obj)/smm/smm.map
+	$(OBJCOPY_smm) -O binary $(obj)/smm/smm.elf $@
 
 ifeq ($(CONFIG_HAVE_SMI_HANDLER),y)
 ramstage-srcs += $(obj)/cpu/x86/smm/smm.manual