Various changes to the buildsystem:

- Single instance of the CC build rule in Makefile, instantiated as
necessary

- Remove manual static.o and option_table.o rules, they're now covered
by those instances of the CC build rule

- Normalize object file paths, so it can be $(obj)/option_table.o
instead of $(obj)/arch/i386/../../option_table.o now

- Add -pipe to compiler flags. It might be detrimental on rare scenarios
(building with extremly high disk bandwidth, eg. RAM disk), but it
significantly helps on win32 (which seems to cache less aggressively
than most unix-alikes)

- Silence stderr on hostname and domainname invocations (cosmetic fix
for cygwin)

- Test for -Wa,--divide functionality of the target compiler (taken from
abuild). It might be possible to remove most patches in crossgcc with that.

- Report build of failover.inc and romstage.inc


Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de
Acked-by: Peter Stuge <peter@stuge.se>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5224 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

Makefile

@@ -142,14 +142,6 @@ $(obj)/mainboard/$(MAINBOARDDIR)/static.c: $(src)/mainboard/$(MAINBOARDDIR)/devi
 	mkdir -p $(obj)/mainboard/$(MAINBOARDDIR)
 	(cd $(obj)/mainboard/$(MAINBOARDDIR) ; PYTHONPATH=$(top)/util/sconfig export PYTHONPATH; python config.py  $(MAINBOARDDIR) $(top) $(obj)/mainboard/$(MAINBOARDDIR))
 
-$(obj)/mainboard/$(MAINBOARDDIR)/static.o: $(obj)/mainboard/$(MAINBOARDDIR)/static.c
-	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(CC) $(CFLAGS) -c -o $@ $<
-
-$(obj)/arch/i386/../../option_table.o: $(obj)/arch/i386/../../option_table.c
-	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(CC) $(CFLAGS) -c -o $@ $<
-
 objs:=$(obj)/mainboard/$(MAINBOARDDIR)/static.o
 initobjs:=
 drivers:=
@@ -168,11 +160,11 @@ includemakefiles= \
 	$(if $(strip $(3)), \
 		$(foreach type,$(2), \
 			$(eval $(type)s+= \
-				$$(patsubst util/%, \
+				$$(abspath $$(patsubst util/%, \
 					$(obj)/util/%, \
 					$$(patsubst src/%, \
 						$(obj)/%, \
-						$$(addprefix $(dir $(1)),$$($(type)-y))))))) \
+						$$(addprefix $(dir $(1)),$$($(type)-y)))))))) \
 	$(eval subdirs+=$$(subst $(PWD)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
 
 # For each path in $(subdirs) call includemakefiles, passing $(1) as $(3)
@@ -213,61 +205,35 @@ $(obj)/$(1)%.o: src/$(1)%.asl
 	$(CC) $$(CFLAGS) $$(if $$(subst dsdt,,$$(basename $$(notdir $$@))), -DAmlCode=AmlCode_$$(basename $$(notdir $$@))) -c -o $$@ $$(basename $$@).c
 endef
 
-define objs_c_template
-$(obj)/$(1)%.o: $(1)%.c $(obj)/config.h
-	@printf "    CC         $$(subst $$(obj)/,,$$(@))\n"
-	$(CC) $$(CFLAGS) -c -o $$@ $$<
+# macro to define template macros that are used by use_template macro
+define create_cc_template
+# $1 obj class (objs, initobjs, ...)
+# $2 source suffix (c, S)
+# $3 .o infix ("" ".initobj", ...)
+# $4 additional compiler flags
+de$(EMPTY)fine $(1)_$(2)_template
+$(obj)/$$(1)%$(3).o: $$(1)%.$(2) $(obj)/config.h
+	printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
+	$(CC) $(4) $$$$(CFLAGS) -c -o $$$$@ $$$$<
 
-$(obj)/$(1)%.o: src/$(1)%.c $(obj)/config.h
-	@printf "    CC         $$(subst $$(obj)/,,$$(@))\n"
-	$(CC) $$(CFLAGS) -c -o $$@ $$<
+$(obj)/$$(1)%$(3).o: src/$$(1)%.$(2) $(obj)/config.h
+	printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
+	$(CC) $(4) $$$$(CFLAGS) -c -o $$$$@ $$$$<
+
+$(obj)/$$(1)%$(3).o: obj/$$(1)%.$(2) $(obj)/config.h
+	printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
+	$(CC) $(4) $$$$(CFLAGS) -c -o $$$$@ $$$$<
+en$(EMPTY)def
 endef
 
-define objs_S_template
-$(obj)/$(1)%.o: $(1)%.S $(obj)/config.h
-	@printf "    CC         $$(subst $$(obj)/,,$$(@))\n"
-	$(CC) -DASSEMBLY $$(CFLAGS) -c -o $$@ $$<
-
-$(obj)/$(1)%.o: src/$(1)%.S $(obj)/config.h
-	@printf "    CC         $$(subst $$(obj)/,,$$(@))\n"
-	$(CC) -DASSEMBLY $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define initobjs_c_template
-$(obj)/$(1)%.initobj.o: src/$(1)%.c $(obj)/config.h
-	@printf "    CC         $$(subst $$(obj)/,,$$(@))\n"
-	$(CC) $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define initobjs_S_template
-$(obj)/$(1)%.initobj.o: src/$(1)%.S $(obj)/config.h
-	@printf "    CC         $$(subst $$(obj)/,,$$(@))\n"
-	$(CC) -DASSEMBLY $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define drivers_c_template
-$(obj)/$(1)%.driver.o: src/$(1)%.c $(obj)/config.h
-	@printf "    CC         $$(subst $$(obj)/,,$$(@))\n"
-	$(CC) $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define drivers_S_template
-$(obj)/$(1)%.driver.o: src/$(1)%.S
-	@printf "    CC         $$(subst $$(obj)/,,$$(@))\n"
-	$(CC) -DASSEMBLY $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define smmobjs_c_template
-$(obj)/$(1)%.smmobj.o: src/$(1)%.c
-	@printf "    CC         $$(subst $$(obj)/,,$$(@))\n"
-	$(CC) $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define smmobjs_S_template
-$(obj)/$(1)%.smmobj.o: src/$(1)%.S
-	@printf "    CC         $$(subst $$(obj)/,,$$(@))\n"
-	$(CC) $$(CFLAGS) -c -o $$@ $$<
-endef
+$(eval $(call create_cc_template,objs,c))
+$(eval $(call create_cc_template,objs,S,,-DASSEMBLY))
+$(eval $(call create_cc_template,initobjs,c,.initobj))
+$(eval $(call create_cc_template,initobjs,S,.initobj,-DASSEMBLY))
+$(eval $(call create_cc_template,drivers,c,.driver))
+$(eval $(call create_cc_template,drivers,S,.driver,-DASSEMBLY))
+$(eval $(call create_cc_template,smmobjs,c,.smmobj))
+$(eval $(call create_cc_template,smmobjs,S,.smmobj))
 
 usetemplate=$(foreach d,$(sort $(dir $($(1)))),$(eval $(call $(1)_$(2)_template,$(subst $(obj)/,,$(d)))))
 usetemplate=$(foreach d,$(sort $(dir $($(1)))),$(eval $(call $(1)_$(2)_template,$(subst $(obj)/,,$(d)))))
@@ -298,7 +264,7 @@ INCLUDES := -I$(top)/src -I$(top)/src/include -I$(obj) -I$(top)/src/arch/$(ARCHD
 INCLUDES += -I$(top)/util/x86emu/include
 INCLUDES += -include $(obj)/config.h
 
-CFLAGS = $(INCLUDES) -Os -nostdinc
+CFLAGS = $(INCLUDES) -Os -nostdinc -pipe
 CFLAGS += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
 CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs 
 CFLAGS += -Wstrict-aliasing -Wshadow
@@ -337,8 +303,8 @@ $(obj)/build.h: .xcompile
 	printf "#define COREBOOT_LINKER \"$(shell LANG= $(LD) --version | head -n1)\"\n" >> $(obj)/build.ht
 	printf "#define COREBOOT_COMPILE_TIME \"`LANG= date +%T`\"\n" >> $(obj)/build.ht
 	printf "#define COREBOOT_COMPILE_BY \"$(subst \,@,$(shell PATH=$$PATH:/usr/ucb whoami))\"\n" >> $(obj)/build.ht
-	printf "#define COREBOOT_COMPILE_HOST \"$(shell hostname -s)\"\n" >> $(obj)/build.ht
-	printf "#define COREBOOT_COMPILE_DOMAIN \"$(shell test `uname -s` = "Linux" && dnsdomainname || domainname)\"\n" >> $(obj)/build.ht
+	printf "#define COREBOOT_COMPILE_HOST \"$(shell hostname -s 2>/dev/null)\"\n" >> $(obj)/build.ht
+	printf "#define COREBOOT_COMPILE_DOMAIN \"$(shell test `uname -s` = "Linux" && dnsdomainname || domainname 2>/dev/null)\"\n" >> $(obj)/build.ht
 	printf "#endif\n" >> $(obj)/build.ht
 	mv $(obj)/build.ht $(obj)/build.h
 

src/arch/i386/Makefile.inc

@@ -42,7 +42,7 @@ endif
 #######################################################################
 # i386 specific tools
 
-$(obj)/option_table.h $(obj)/option_table.c $(obj)/arch/i386/../../option_table.c: $(obj)/build_opt_tbl $(top)/src/mainboard/$(MAINBOARDDIR)/cmos.layout
+$(obj)/option_table.h $(obj)/option_table.c: $(obj)/build_opt_tbl $(top)/src/mainboard/$(MAINBOARDDIR)/cmos.layout
 	@printf "    OPTION     $(subst $(obj)/,,$(@))\n"
 	$(obj)/build_opt_tbl --config $(top)/src/mainboard/$(MAINBOARDDIR)/cmos.layout --header $(obj)/option_table.h --option $(obj)/option_table.c
 
@@ -183,9 +183,11 @@ ifeq ($(CONFIG_ROMCC),y)
 ROMCCFLAGS ?= -mcpu=p2 -O2
 
 $(obj)/mainboard/$(MAINBOARDDIR)/failover.inc: $(obj)/romcc $(src)/arch/i386/lib/failover.c
+	printf "    ROMCC      failover.inc\n"
 	$(obj)/romcc $(ROMCCFLAGS) --label-prefix=failover $(INCLUDES) $(src)/arch/i386/lib/failover.c -o $@
 
 $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc: $(src)/mainboard/$(MAINBOARDDIR)/romstage.c $(obj)/romcc $(OPTION_TABLE_H) $(obj)/build.h
+	printf "    ROMCC      romstage.inc\n"
 	$(obj)/romcc $(ROMCCFLAGS) -include $(obj)/build.h $(INCLUDES) $< -o $@
 
 else
@@ -194,6 +196,7 @@ $(obj)/mainboard/$(MAINBOARDDIR)/ap_romstage.o: $(src)/mainboard/$(MAINBOARDDIR)
 	$(CC) $(CFLAGS) $(CPPFLAGS) $(DEBUG_CFLAGS) -I$(src) -I. -c -S  $(src)/mainboard/$(MAINBOARDDIR)/ap_romstage.c -o $@
 
 $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc: $(src)/mainboard/$(MAINBOARDDIR)/romstage.c $(OPTION_TABLE_H) $(obj)/build.h
+	printf "    GEN        romstage.inc\n"
 	$(CC) $(CFLAGS) $(CPPFLAGS) $(DEBUG_CFLAGS) -include $(obj)/build.h -I$(src) -I. -c -S $< -o $@.tmp1
 	sed -e 's/\.rodata/.rom.data/g' -e 's/\.text/.section .rom.text/g' $@.tmp1 > $@.tmp
 	mv $@.tmp $@

util/xcompile/xcompile

@@ -75,6 +75,7 @@ if [ "$GCCPREFIX" = "invalid" ]; then
 fi
 
 CC="${GCCPREFIX}gcc"
+testcc "$CC" "$CFLAGS-Wa,--divide " && CFLAGS="$CFLAGS-Wa,--divide "
 testcc "$CC" "$CFLAGS-fno-stack-protector " && CFLAGS="$CFLAGS-fno-stack-protector "
 testcc "$CC" "$CFLAGS-Wl,--build-id=none " && CFLAGS="$CFLAGS-Wl,--build-id=none "