dependency tracking for coreboot
Obviously compile time increases slightly because more work has to be done, but
I'm sure the benefit of having to rm -rf build less often is worth it :-)
Other small changes:
* be a bit more verbose on some of the created files
* move -O2 from compiler rule into bootblock_romccflags
* drop rule needed for util/*.c -> build/*.o as x86emu no longer lives in util.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5280 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/Makefile b/Makefile
index 7344ddd..f2fa6fc 100644
--- a/Makefile
+++ b/Makefile
@@ -216,11 +216,7 @@
de$(EMPTY)fine $(1)_$(2)_template
$(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/$$(1)%.$(2) $(obj)/config.h
- printf " CC $$$$(subst $$$$(obj)/,,$$$$(@))\n"
- $(CC) $(4) $$$$(CFLAGS) -c -o $$$$@ $$$$<
+ $(CC) $(4) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$<
en$(EMPTY)def
endef
@@ -245,6 +241,9 @@
$(eval $(call usetemplate,smmobjs,c))
$(eval $(call usetemplate,smmobjs,S))
+DEPENDENCIES = $(objs:.o=.d) $(initobjs:.o=.d) $(drivers:.o=.d) $(smmobjs:.o=.d)
+-include $(DEPENDENCIES)
+
printall:
@echo objs:=$(objs)
@echo initobjs:=$(initobjs)
@@ -252,6 +251,7 @@
@echo smmobjs:=$(smmobjs)
@echo alldirs:=$(alldirs)
@echo allsrc=$(allsrc)
+ @echo DEPENDENCIES=$(DEPENDENCIES)
@echo LIBGCC_FILE_NAME=$(LIBGCC_FILE_NAME)
printcrt0s:
@@ -316,12 +316,13 @@
clean-for-update: doxygen-clean
rm -f $(objs) $(initobjs) $(drivers) $(smmobjs) .xcompile
+ rm -f $(DEPENDENCIES)
rm -f $(obj)/coreboot_ram* $(obj)/coreboot.romstage $(obj)/coreboot.pre* $(obj)/coreboot.bootblock $(obj)/coreboot.a
rm -rf $(obj)/bootblock* $(obj)/romstage* $(obj)/location.*
rm -f $(obj)/option_table.* $(obj)/crt0_includes.h $(obj)/ldscript
rm -f $(obj)/mainboard/$(MAINBOARDDIR)/static.c $(obj)/mainboard/$(MAINBOARDDIR)/config.py $(obj)/mainboard/$(MAINBOARDDIR)/static.dot
rm -f $(obj)/mainboard/$(MAINBOARDDIR)/crt0.s $(obj)/mainboard/$(MAINBOARDDIR)/crt0.disasm
- rm -f $(obj)/mainboard/$(MAINBOARDDIR)/failover.inc $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc
+ rm -f $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc
rm -f $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.* $(obj)/mainboard/$(MAINBOARDDIR)/dsdt.*
rm -f $(obj)/cpu/x86/smm/smm_bin.c $(obj)/cpu/x86/smm/smm.* $(obj)/cpu/x86/smm/smm
rmdir -p $(alldirs) 2>/dev/null >/dev/null || true