New patch to review for coreboot: 5fec387 build system: use full (in-tree) paths

[Patrick Georgi]

Patrick Georgi ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/9288

-gerrit

commit 5fec387a645f34c881e5fef244db24410cd4b428
Author: Patrick Georgi 
Date:   Fri Apr 3 10:32:17 2015 +0200

build system: use full (in-tree) paths

So far we assumed that all files in *-srcs are below src/
    which wasn't really true actually and will be less true with
    future changes.

Fix up crt0.S handling on x86, which is covered by default rules
    due to this change.

This is inspired by the commit listed below, but rewritten to match
    upstream, and split in smaller pieces to keep intent clear.

Change-Id: Icae563c2d545b1aea809406e73faf3b417796a1b
    Signed-off-by: Patrick Georgi 
    Based-On-Change-Id: I50af7dacf616e0f8ff4c43f4acc679089ad7022b
    Based-On-Signed-off-by: Julius Werner 
    Based-On-Reviewed-on: https://chromium-review.googlesource.com/219170
---
 Makefile                  |  4 ++--
 Makefile.inc              |  2 +-
 src/arch/x86/Makefile.inc | 13 ++++---------
 3 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/Makefile b/Makefile
index f6f9a60..3ad19df 100644
--- a/Makefile
+++ b/Makefile
@@ -230,7 +230,7 @@ define create_cc_template
 # $4 additional dependencies
 ifn$(EMPTY)def $(1)-objs_$(2)_template
 de$(EMPTY)fine $(1)-objs_$(2)_template
-$(obj)/$$(1).$(1).o: src/$$(1).$(2) $(obj)/config.h $(4)
+$$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $(obj)/config.h $(4)
    @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
    $(CC_$(1)) -MMD $$$$(CPPFLAGS_$(1)) $$$$(CFLAGS_$(1)) -MT $$$$(@) $(3) -c -o $$$$@ $$$$<
 en$(EMPTY)def
@@ -244,7 +244,7 @@ $(foreach class,$(classes), \
    	$(if $(generic-objs_$(type)_template_gen),$(eval $(call generic-objs_$(type)_template_gen,$(class))),\
    	$(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps))))))

-foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(subst src/,,$(basename $(file))))))
+foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(basename $(file)))))
 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))

DEPENDENCIES = $(addsuffix .d,$(basename $(allobjs)))
diff --git a/Makefile.inc b/Makefile.inc
index d18acfc..0e34577 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -147,7 +147,7 @@ endef
 #######################################################################
 # Add handler to compile ACPI's ASL
 define ramstage-objs_asl_template
-$(obj)/$(1).ramstage.asl: src/$(1).asl $(obj)/config.h
+$$(call src-to-obj,ramstage,$(1).asl): $(1).asl $(obj)/config.h
    @printf "    IASL       $$(subst $(top)/,,$$(@))\n"
    $(CC_ramstage) -x assembler-with-cpp -E -MMD -MT $$(@) -D__ACPI__ -P -include $(src)/include/kconfig.h -I$(obj) -I$(src) -I$(src)/include -I$(src)/arch/$(ARCHDIR-$(ARCH-ramstage-y))/include -I$(src)/mainboard/$(MAINBOARDDIR) $$< -o $$@
    cd $$(dir $$@); $(IASL) -p $$(notdir $$@) -tc $$(notdir $$@)
diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc
index fe92a22..e2170f5 100644
--- a/src/arch/x86/Makefile.inc
+++ b/src/arch/x86/Makefile.inc
@@ -233,17 +233,12 @@ $(objcbfs)/base_xip.txt: $(obj)/coreboot.pre1 $(objcbfs)/romstage_null.bin
     || { echo "The romstage is larger than XIP size. Please expand the CONFIG_XIP_ROM_SIZE" ; exit 1; }
    mv $@.tmp $@

-$(objgenerated)/crt0.romstage.S: $$(crt0s)
+$(objgenerated)/crt0.S: $$(crt0s)
    @printf "    GEN        $(subst $(obj)/,,$(@))\n"
-	printf '$(foreach crt0,$(crt0s),#include "$(crt0:$(obj)/%=%)"\n)' > $@
+	printf '$(foreach crt0,$(crt0s),#include "$(crt0)"\n)' > $@

-$(objgenerated)/crt0.romstage.o: $(objgenerated)/crt0.S
-	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(CC_romstage) $(CFLAGS_x86_32) $(DISASSEMBLY) -c -o $@ $<  > $(basename $@).disasm
-
-$(objgenerated)/crt0.S: $(objgenerated)/crt0.romstage.S $(obj)/config.h $(obj)/build.h
-	@printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(CC_romstage) $(CPPFLAGS_romstage) -MMD -x assembler-with-cpp -E -I$(src)/include -I$(src)/arch/x86/include -I$(obj) -include $(obj)/config.h -include $(obj)/build.h -I. -I$(src) $< -o $@
+# Compiling crt0 with -g seems to trigger https://sourceware.org/bugzilla/show_bug.cgi?id=6428
+romstage-S-ccopts += -I. -g0

endif # CONFIG_ARCH_ROMSTAGE_X86_32