##
## Copyright (C) 2008 Advanced Micro Devices, Inc.
## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2009-2010 coresystems GmbH
##
-## Redistribution and use in source and binary forms, with or without
-## modification, are permitted provided that the following conditions
-## are met:
-## 1. Redistributions of source code must retain the above copyright
-## notice, this list of conditions and the following disclaimer.
-## 2. Redistributions in binary form must reproduce the above copyright
-## notice, this list of conditions and the following disclaimer in the
-## documentation and/or other materials provided with the distribution.
-## 3. The name of the author may not be used to endorse or promote products
-## derived from this software without specific prior written permission.
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; version 2 of the License.
##
-## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-## SUCH DAMAGE.
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+ifeq ($(INNER_SCANBUILD),y)
+CC_real:=$(CC)
+endif
$(if $(wildcard .xcompile),,$(eval $(shell bash util/xcompile/xcompile > .xcompile)))
include .xcompile
-export top := $(shell pwd)
+ifeq ($(INNER_SCANBUILD),y)
+CC:=$(CC_real)
+HOSTCC:=$(CC_real) --hostcc
+HOSTCXX:=$(CC_real) --hostcxx
+endif
+
+export top := $(PWD)
export src := $(top)/src
export srck := $(top)/util/kconfig
-export obj := $(top)/build
+export obj ?= $(top)/build
export objk := $(obj)/util/kconfig
export sconfig := $(top)/util/sconfig
export yapps2_py := $(sconfig)/yapps2.py
export config_g := $(sconfig)/config.g
-export KERNELVERSION := 2.3
+export KERNELVERSION := 4.0
export KCONFIG_AUTOHEADER := $(obj)/config.h
export KCONFIG_AUTOCONFIG := $(obj)/auto.conf
-export COREBOOT_V2 := 1
CONFIG_SHELL := sh
KBUILD_DEFCONFIG := configs/defconfig
HOSTCXX = g++
HOSTCFLAGS := -I$(srck) -I$(objk) -g
HOSTCXXFLAGS := -I$(srck) -I$(objk)
-LIBGCC_FILE_NAME := $(shell $(CC) -print-libgcc-file-name)
-
-DESTDIR = /opt
+LIBGCC_FILE_NAME := $(shell test -r `$(CC) -print-libgcc-file-name` && $(CC) -print-libgcc-file-name)
DOXYGEN := doxygen
DOXYGEN_OUTPUT_DIR := doxygen
include $(top)/.config
+ifneq ($(INNER_SCANBUILD),y)
+ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
+CC:=clang -m32
+HOSTCC:=clang
+endif
+endif
+
+strip_quotes = $(subst ",,$(subst \",,$(1)))
+
ARCHDIR-$(CONFIG_ARCH_X86) := i386
ARCHDIR-$(CONFIG_ARCH_POWERPC) := ppc
-MAINBOARDDIR=$(shell echo $(CONFIG_MAINBOARD_DIR))
+MAINBOARDDIR=$(call strip_quotes,$(CONFIG_MAINBOARD_DIR))
export MAINBOARDDIR
PLATFORM-y += src/arch/$(ARCHDIR-y) src/cpu src/mainboard/$(MAINBOARDDIR)
TARGETS-y :=
-BUILD-y := src/lib src/boot src/console src/devices src/southbridge src/northbridge src/superio src/drivers util/x86emu
+BUILD-y := src/lib src/boot src/console src/devices src/southbridge src/northbridge src/superio src/drivers
BUILD-y += util/cbfstool
BUILD-$(CONFIG_ARCH_X86) += src/pc80
ifneq ($(CONFIG_LOCALVERSION),"")
-COREBOOT_EXTRA_VERSION := -$(shell echo $(CONFIG_LOCALVERSION))
+COREBOOT_EXTRA_VERSION := -$(call strip_quotes,$(CONFIG_LOCALVERSION))
endif
# The primary target needs to be here before we include the
# other files
-all: coreboot
+ifeq ($(INNER_SCANBUILD),y)
+CONFIG_SCANBUILD_ENABLE:=
+endif
+ifeq ($(CONFIG_SCANBUILD_ENABLE),y)
+ifneq ($(CONFIG_SCANBUILD_REPORT_LOCATION),)
+CONFIG_SCANBUILD_REPORT_LOCATION:=-o $(CONFIG_SCANBUILD_REPORT_LOCATION)
+endif
+all:
+ echo '#!/bin/sh' > .ccwrap
+ echo 'CC="$(CC)"' >> .ccwrap
+ echo 'if [ "$$1" = "--hostcc" ]; then shift; CC="$(HOSTCC)"; fi' >> .ccwrap
+ echo 'if [ "$$1" = "--hostcxx" ]; then shift; CC="$(HOSTCXX)"; fi' >> .ccwrap
+ echo 'eval $$CC $$*' >> .ccwrap
+ chmod +x .ccwrap
+ scan-build $(CONFIG_SCANBUILD_REPORT_LOCATION) -analyze-headers --use-cc=$(top)/.ccwrap --use-c++=$(top)/.ccwrap $(MAKE) INNER_SCANBUILD=y
+else
+all: $(obj)/config.h coreboot
+endif
+
+$(obj)/config.h:
+ $(MAKE) oldconfig
#######################################################################
# Build the tools
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
-#
-
objs:=$(obj)/mainboard/$(MAINBOARDDIR)/static.o
initobjs:=
drivers:=
crt0s:=
ldscripts:=
types:=obj initobj driver smmobj
-src_types:=crt0 ldscript
-includemakefiles=$(foreach type,$(2), $(eval $(type)-y:=)) $(eval subdirs-y:=) $(eval include $(1)) $(if $(strip $(3)),$(foreach type,$(2),$(eval $(type)s+=$$(patsubst src/%,$(obj)/%,$$(addprefix $(dir $(1)),$$($(type)-y)))))) $(eval subdirs+=$$(subst $(PWD)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
-evaluate_subdirs=$(eval cursubdirs:=$(subdirs)) $(eval subdirs:=) $(foreach dir,$(cursubdirs),$(eval $(call includemakefiles,$(dir)/Makefile.inc,$(types) $(src_types),$(1)))) $(if $(subdirs),$(eval $(call evaluate_subdirs, $(1))))
+
+# Clean -y variables, include Makefile.inc
+# If $(3) is non-empty, add paths to files in X-y, and add them to Xs
+# Add subdirs-y to subdirs
+includemakefiles= \
+ $(foreach type,$(2), $(eval $(type)-y:=)) \
+ $(eval subdirs-y:=) \
+ $(eval -include $(1)) \
+ $(if $(strip $(3)), \
+ $(foreach type,$(2), \
+ $(eval $(type)s+= \
+ $$(abspath $$(patsubst src/%, \
+ $(obj)/%, \
+ $$(addprefix $(dir $(1)),$$($(type)-y))))))) \
+ $(eval subdirs+=$$(subst $(PWD)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
+
+# For each path in $(subdirs) call includemakefiles, passing $(1) as $(3)
+# Repeat until subdirs is empty
+evaluate_subdirs= \
+ $(eval cursubdirs:=$(subdirs)) \
+ $(eval subdirs:=) \
+ $(foreach dir,$(cursubdirs), \
+ $(eval $(call includemakefiles,$(dir)/Makefile.inc,$(types),$(1)))) \
+ $(if $(subdirs),$(eval $(call evaluate_subdirs, $(1))))
# collect all object files eligible for building
subdirs:=$(PLATFORM-y) $(BUILD-y)
$(eval $(call evaluate_subdirs, modify))
+initobjs:=$(addsuffix .initobj.o, $(basename $(initobjs)))
+drivers:=$(addsuffix .driver.o, $(basename $(drivers)))
+smmobjs:=$(addsuffix .smmobj.o, $(basename $(smmobjs)))
+
allobjs:=$(foreach var, $(addsuffix s,$(types)), $($(var)))
alldirs:=$(sort $(abspath $(dir $(allobjs))))
source_with_ext=$(patsubst $(obj)/%.o,src/%.$(1),$(allobjs))
$(eval $(call evaluate_subdirs))
-define c_dsl_template
-$(obj)/$(1)%.c: src/$(1)%.dsl
- @printf " IASL $$(subst $$(shell pwd)/,,$$(@))\n"
- iasl -p $$(basename $$@) -tc $$<
- perl -pi -e 's/AmlCode/AmlCode_$$(notdir $$(basename $$@))/g' $$(basename $$@).hex
- mv $$(basename $$@).hex $$@
+define objs_asl_template
+$(obj)/$(1)%.o: src/$(1)%.asl
+ @printf " IASL $$(subst $(top)/,,$$(@))\n"
+ $(CPP) -D__ACPI__ -P $(CPPFLAGS) -include $(obj)/config.h -I$(src) -I$(src)/mainboard/$(MAINBOARDDIR) $$< -o $$(basename $$@).asl
+ iasl -p $$(basename $$@) -tc $$(basename $$@).asl
+ mv $$(basename $$@).hex $$(basename $$@).c
+ $(CC) $$(CFLAGS) $$(if $$(subst dsdt,,$$(basename $$(notdir $$@))), -DAmlCode=AmlCode_$$(basename $$(notdir $$@))) -c -o $$@ $$(basename $$@).c
endef
-define objs_c_template
-$(obj)/$(1)%.o: src/$(1)%.c
- @printf " CC $$(subst $$(obj)/,,$$(@))\n"
- $(CC) -m32 $$(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)/$$(1)%$(3).o: src/$$(1)%.$(2) $(obj)/config.h
+ printf " CC $$$$(subst $$$$(obj)/,,$$$$(@))\n"
+ $(CC) $(4) $$$$(CFLAGS) -c -o $$$$@ $$$$<
+
+$(obj)/$$(1)%$(3).o: obj/$$(1)%.$(2) $(obj)/config.h
+ printf " CC $$$$(subst $$$$(obj)/,,$$$$(@))\n"
+ $(CC) $(4) $$$$(CFLAGS) -c -o $$$$@ $$$$<
+en$(EMPTY)def
endef
-define objs_S_template
-$(obj)/$(1)%.o: src/$(1)%.S
- @printf " CC $$(subst $$(obj)/,,$$(@))\n"
- $(CC) -m32 -DASSEMBLY $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define initobjs_c_template
-$(obj)/$(1)%.o: src/$(1)%.c
- @printf " CC $$(subst $$(obj)/,,$$(@))\n"
- $(CC) -m32 $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define initobjs_S_template
-$(obj)/$(1)%.o: src/$(1)%.S
- @printf " CC $$(subst $$(obj)/,,$$(@))\n"
- $(CC) -m32 -DASSEMBLY $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define drivers_c_template
-$(obj)/$(1)%.o: src/$(1)%.c
- @printf " CC $$(subst $$(obj)/,,$$(@))\n"
- $(CC) -m32 $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define drivers_S_template
-$(obj)/$(1)%.o: src/$(1)%.S
- @printf " CC $$(subst $$(obj)/,,$$(@))\n"
- $(CC) -m32 -DASSEMBLY $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define smmobjs_c_template
-$(obj)/$(1)%.o: src/$(1)%.c
- @printf " CC $$(subst $$(obj)/,,$$(@))\n"
- $(CC) -m32 $$(CFLAGS) -c -o $$@ $$<
-endef
-
-define smmobjs_S_template
-$(obj)/$(1)%.o: src/$(1)%.S
- @printf " CC $$(subst $$(obj)/,,$$(@))\n"
- $(CC) -m32 $$(CFLAGS) -c -o $$@ $$<
-endef
+$(eval $(call create_cc_template,objs,c))
+$(eval $(call create_cc_template,objs,S,,-DASSEMBLY))
+$(eval $(call create_cc_template,initobjs,c,.initobj))
+$(eval $(call create_cc_template,initobjs,S,.initobj,-DASSEMBLY))
+$(eval $(call create_cc_template,drivers,c,.driver))
+$(eval $(call create_cc_template,drivers,S,.driver,-DASSEMBLY))
+$(eval $(call create_cc_template,smmobjs,c,.smmobj))
+$(eval $(call create_cc_template,smmobjs,S,.smmobj))
usetemplate=$(foreach d,$(sort $(dir $($(1)))),$(eval $(call $(1)_$(2)_template,$(subst $(obj)/,,$(d)))))
usetemplate=$(foreach d,$(sort $(dir $($(1)))),$(eval $(call $(1)_$(2)_template,$(subst $(obj)/,,$(d)))))
-$(eval $(call usetemplate,c,dsl))
+$(eval $(call usetemplate,objs,asl))
$(eval $(call usetemplate,objs,c))
$(eval $(call usetemplate,objs,S))
$(eval $(call usetemplate,initobjs,c))
@echo smmobjs:=$(smmobjs)
@echo alldirs:=$(alldirs)
@echo allsrc=$(allsrc)
+ @echo LIBGCC_FILE_NAME=$(LIBGCC_FILE_NAME)
+
+printcrt0s:
+ @echo $(patsubst $(top)/%,%,$(crt0s))
OBJS := $(patsubst %,$(obj)/%,$(TARGETS-y))
INCLUDES := -I$(top)/src -I$(top)/src/include -I$(obj) -I$(top)/src/arch/$(ARCHDIR-y)/include
-INCLUDES += -I$(shell $(CC) -print-search-dirs | head -n 1 | cut -d' ' -f2)include
-INCLUDES += -I$(top)/util/x86emu/include
-INCLUDES += -include $(obj)/build.h
+INCLUDES += -I$(top)/src/devices/oprom/include
+INCLUDES += -include $(obj)/config.h
-try-run= $(shell set -e; \
-TMP=".$$$$.tmp"; \
-if ($(1)) > /dev/null 2>&1; \
-then echo "$(2)"; \
-else echo "$(3)"; \
-fi; rm -rf "$$TMP")
-
-cc-option= $(call try-run,\
-$(CC) $(1) -S -xc /dev/null -o "$$TMP", $(1), $(2))
-
-STACKPROTECT += $(call cc-option, -fno-stack-protector,)
-
-CFLAGS = $(STACKPROTECT) $(INCLUDES) -Os -nostdinc
+CFLAGS = $(INCLUDES) -Os -nostdinc -pipe
CFLAGS += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs
-CFLAGS += -Wstrict-aliasing -Wshadow
+CFLAGS += -Wstrict-aliasing -Wshadow
ifeq ($(CONFIG_WARNINGS_ARE_ERRORS),y)
CFLAGS += -Werror
endif
CBFS_PAYLOAD_COMPRESS_FLAG:=l
endif
-coreboot: prepare prepare2 $(obj)/coreboot.rom
+coreboot: prepare $(obj)/coreboot.rom
endif
prepare:
mkdir -p $(obj)
- mkdir -p $(obj)/util/kconfig/lxdialog
+ mkdir -p $(obj)/util/kconfig/lxdialog $(obj)/util/cbfstool
test -n "$(alldirs)" && mkdir -p $(alldirs) || true
-prepare2:
+$(obj)/build.h: .xcompile
@printf " GEN build.h\n"
- printf "#define COREBOOT_VERSION \"$(KERNELVERSION)\"\n" > $(obj)/build.h
- printf "#define COREBOOT_EXTRA_VERSION \"$(COREBOOT_EXTRA_VERSION)\"\n" >> $(obj)/build.h
- printf "#define COREBOOT_V2 \"$(COREBOOT_V2)\"\n" >> $(obj)/build.h
- printf "#define COREBOOT_BUILD \"`LANG= date`\"\n" >> $(obj)/build.h
- printf "\n" >> $(obj)/build.h
- printf "#define COREBOOT_COMPILER \"$(shell LANG= $(CC) --version | head -n1)\"\n" >> $(obj)/build.h
- printf "#define COREBOOT_ASSEMBLER \"$(shell LANG= $(AS) --version | head -n1)\"\n" >> $(obj)/build.h
- printf "#define COREBOOT_LINKER \"$(shell LANG= $(LD) --version | head -n1)\"\n" >> $(obj)/build.h
- printf "#define COREBOOT_COMPILE_TIME \"`LANG= date +%T`\"\n" >> $(obj)/build.h
- printf "#define COREBOOT_COMPILE_BY \"$(shell PATH=$$PATH:/usr/ucb whoami)\"\n" >> $(obj)/build.h
- printf "#define COREBOOT_COMPILE_HOST \"$(shell hostname)\"\n" >> $(obj)/build.h
- printf "#define COREBOOT_COMPILE_DOMAIN \"$(shell test `uname -s` = "Linux" && dnsdomainname || domainname)\"\n" >> $(obj)/build.h
- printf "#include \"config.h\"\n" >> $(obj)/build.h
+ rm -f $(obj)/build.h
+ printf "/* build system definitions (autogenerated) */\n" > $(obj)/build.ht
+ printf "#ifndef __BUILD_H\n" >> $(obj)/build.ht
+ printf "#define __BUILD_H\n\n" >> $(obj)/build.ht
+ printf "#define COREBOOT_VERSION \"$(KERNELVERSION)-r$(shell if [ -d $(top)/.svn -a -f `which svnversion` ]; then svnversion $(top); else if [ -d $(top)/.git -a -f `which git` ]; then git --git-dir=/$(top)/.git log|grep git-svn-id|cut -f 2 -d@|cut -f 1 -d' '|sort -g|tail -1; fi; fi)\"\n" >> $(obj)/build.ht
+ printf "#define COREBOOT_EXTRA_VERSION \"$(COREBOOT_EXTRA_VERSION)\"\n" >> $(obj)/build.ht
+ printf "#define COREBOOT_BUILD \"`LANG= date`\"\n" >> $(obj)/build.ht
+ printf "\n" >> $(obj)/build.ht
+ printf "#define COREBOOT_COMPILER \"$(shell LANG= $(CC) --version | head -n1)\"\n" >> $(obj)/build.ht
+ printf "#define COREBOOT_ASSEMBLER \"$(shell LANG= $(AS) --version | head -n1)\"\n" >> $(obj)/build.ht
+ printf "#define COREBOOT_LINKER \"$(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 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
doxy: doxygen
doxygen:
- $(DOXYGEN) Doxyfile
+ $(DOXYGEN) documentation/Doxyfile.coreboot
doxyclean: doxygen-clean
doxygen-clean:
rm -rf $(DOXYGEN_OUTPUT_DIR)
-clean: doxygen-clean
- rm -f $(allobjs) $(obj)/coreboot*
+clean-for-update: doxygen-clean
+ rm -f $(objs) $(initobjs) $(drivers) $(smmobjs) .xcompile
+ 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)/auto.inc $(obj)/mainboard/$(MAINBOARDDIR)/crt0.s $(obj)/mainboard/$(MAINBOARDDIR)/crt0.disasm
+ 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)/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
$(MAKE) -C util/sconfig clean
+clean: clean-for-update
+ rm -f $(obj)/coreboot* .ccwrap
+
distclean: clean
- rm -rf $(obj) .xcompile
+ rm -rf $(obj)
rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig*
update:
endif
$(obj)/romcc: $(top)/util/romcc/romcc.c
@printf " HOSTCC $(subst $(obj)/,,$(@)) (this may take a while)\n"
- $(HOSTCC) -g -O2 $(STACK) -Wall -o $@ $<
+ @# Note: Adding -O2 here might cause problems. For details see:
+ @# http://www.coreboot.org/pipermail/coreboot/2010-February/055825.html
+ $(HOSTCC) -g $(STACK) -Wall -o $@ $<
-.PHONY: $(PHONY) prepare prepare2 clean distclean doxygen doxy coreboot
+.PHONY: $(PHONY) prepare clean distclean doxygen doxy coreboot .xcompile