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coreboot-kgpe-d16/Makefile.inc
Alexandru Gagniuc 00b579a447 buildsystem: Make CPU microcode updating more configurable 
This patch aims to improve the microcode in CBFS handling that was
brought by the last patches from Stefan and the Chromium team.

Choices in Kconfig
  - 1) Generate microcode from tree (default)
  - 2) Include external microcode file
  - 3) Do not put microcode in CBFS

The idea is to give the user full control over including non-free
blobs in the final ROM image.

MICROCODE_INCLUDE_PATH Kconfig variable is eliminated. Microcode
is handled by a special class, cpu_microcode, as such:

cpu_microcode-y += microcode_file.c

MICROCODE_IN_CBFS should, in the future, be eliminated. Right now it is
needed by intel microcode updating. Once all intel cpus are converted to
cbfs updating, this variable can go away.

These files are then compiled and assembled into a binary CBFS file.
The advantage of doing it this way versus the current method is that
  1) The rule is CPU-agnostic
  2) Gives user more control over if and how to include microcode blobs
  3) The rules for building the microcode binary are kept in
   src/cpu/Makefile.inc, and thus would not clobber the other makefiles,
   which are already overloaded and very difficult to navigate.

Change-Id: I38d0c9851691aa112e93031860e94895857ebb76
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/1245
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2012-09-05 03:40:47 +02:00

314 lines
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Makefile
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##
## This file is part of the coreboot project.
##
## Copyright (C) 2011 secunet Security Networks AG
##
## 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 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
##
#######################################################################
# misleadingly named, this is the coreboot version
export KERNELVERSION := $(shell if [ -d "$(top)/.git" -a -f "`which git`" ]; then git describe --dirty 2>/dev/null || git describe; else echo unknown; fi)
#######################################################################
# Basic component discovery
ARCHDIR-$(CONFIG_ARCH_X86) := x86
MAINBOARDDIR=$(call strip_quotes,$(CONFIG_MAINBOARD_DIR))
export MAINBOARDDIR
## Final build results, which CBFSTOOL uses to create the final
## rom image file, are placed under $(objcbfs).
## These typically have suffixes .debug .elf .bin and .map
export objcbfs := $(obj)/cbfs/$(CONFIG_CBFS_PREFIX)
## Based on the active configuration, Makefile conditionally collects
## the required assembly includes and saves them in a file.
## Such files that do not have a clear one-to-one relation to a source
## file under src/ are placed and built under $(objgenerated)
export objgenerated := $(obj)/generated
#######################################################################
# root rule to resolve if in build mode (ie. configuration exists)
real-target: $(obj)/config.h coreboot
coreboot: build-dirs $(obj)/coreboot.rom
#######################################################################
# our phony targets
PHONY+= clean-abuild coreboot lint lint-stable build-dirs
#######################################################################
# root source directories of coreboot
subdirs-y := src/lib src/boot src/console src/devices src/ec src/southbridge
subdirs-y += src/northbridge src/superio src/drivers src/cpu src/vendorcode
subdirs-y += util/cbfstool util/sconfig util/nvramtool
subdirs-y += src/arch/$(ARCHDIR-y)
subdirs-y += src/mainboard/$(MAINBOARDDIR)
subdirs-y += site-local
#######################################################################
# Add source classes and their build options
classes-y := ramstage romstage driver smm cpu_microcode
romstage-c-ccopts:=-D__PRE_RAM__
romstage-S-ccopts:=-D__PRE_RAM__
ifeq ($(CONFIG_TRACE),y)
ramstage-c-ccopts:= -finstrument-functions
endif
ifeq ($(CONFIG_USE_BLOBS),y)
forgetthis:=$(shell git submodule update --init --checkout 3rdparty)
else
ifeq ($(CONFIG_REQUIRES_BLOB),y)
$(error Your current configuration requires binary-only components, but you did not choose to use them)
endif
endif
smm-c-ccopts:=-D__SMM__
smm-S-ccopts:=-D__SMM__
# SMM TSEG base is dynamic
ifeq ($(CONFIG_SMM_TSEG),y)
smm-c-ccopts += -fpic
endif
ramstage-c-deps:=$$(OPTION_TABLE_H)
romstage-c-deps:=$$(OPTION_TABLE_H)
#######################################################################
# Add handler to compile ACPI's ASL
define ramstage-objs_asl_template
$(obj)/$(1).ramstage.o: src/$(1).asl $(obj)/config.h
@printf " IASL $$(subst $(top)/,,$$(@))\n"
$(CC) -x assembler-with-cpp -E -MMD -MT $$(@) -D__ACPI__ -P -include $(src)/include/kconfig.h -I$(obj) -I$(src) -I$(src)/include -I$(src)/arch/$(ARCHDIR-y)/include -I$(src)/mainboard/$(MAINBOARDDIR) $$< -o $$(basename $$@).asl
cd $$(dir $$@); $(IASL) -p $$(notdir $$@) -tc $$(notdir $$(basename $$@)).asl
mv $$(basename $$@).hex $$(basename $$@).c
$(CC) $$(CFLAGS) $$(if $$(subst dsdt,,$$(basename $$(notdir $(1)))), -DAmlCode=AmlCode_$$(basename $$(notdir $(1)))) -c -o $$@ $$(basename $$@).c
# keep %.o: %.c rule from catching the temporary .c file after a make clean
mv $$(basename $$@).c $$(basename $$@).hex
endef
#######################################################################
# Parse plaintext cmos defaults into binary format
# arg1: source file
# arg2: binary file name
cbfs-files-processor-nvramtool= \
$(eval $(2): $(1) $(src)/mainboard/$(MAINBOARDDIR)/cmos.layout | $(objutil)/nvramtool/nvramtool ; \
printf " CREATE $(2) (from $(1))\n"; $(objutil)/nvramtool/nvramtool -y $(src)/mainboard/$(MAINBOARDDIR)/cmos.layout -D $(2).tmp -p $(1) && mv $(2).tmp $(2))
#######################################################################
# Link VSA binary to ELF-ish stage
# arg1: source file
# arg2: binary file name
cbfs-files-processor-vsa= \
$(eval $(2): $(1) ; \
printf " CREATE $(2) (from $(1))\n"; $(OBJCOPY) --set-start 0x20 --adjust-vma 0x60000 -I binary -O elf32-i386 -B i386 $(1) $(2).tmp && $(LD) -m elf_i386 -e 0x60020 --section-start .data=0x60000 $(2).tmp -o $(2))
#######################################################################
# Add handler for arbitrary files in CBFS
$(call add-special-class,cbfs-files)
cbfs-files-handler= \
$(eval tmp-cbfs-method:=$(word 2, $(subst :, ,$($(2)-file)))) \
$(eval $(2)-file:=$(word 1, $(subst :, ,$($(2)-file)))) \
$(if $(wildcard $(1)$($(2)-file)), \
$(eval tmp-cbfs-file:= $(wildcard $(1)$($(2)-file))), \
$(eval tmp-cbfs-file:= $($(2)-file))) \
$(if $(tmp-cbfs-method), \
$(eval tmp-old-cbfs-file:=$(tmp-cbfs-file)) \
$(eval tmp-cbfs-file:=$(shell mktemp $(obj)/mainboard/$(MAINBOARDDIR)/cbfs-file.XXXXXX).out) \
$(call cbfs-files-processor-$(tmp-cbfs-method),$(tmp-old-cbfs-file),$(tmp-cbfs-file))) \
$(eval cbfs-files += $(tmp-cbfs-file)|$(2)|$($(2)-type)|$($(2)-compression)|$($(2)-position)) \
$(eval $(2)-name:=) \
$(eval $(2)-type:=) \
$(eval $(2)-compression:=) \
$(eval $(2)-position:=)
#######################################################################
# a variety of flags for our build
CBFS_COMPRESS_FLAG:=
ifeq ($(CONFIG_COMPRESS_RAMSTAGE),y)
CBFS_COMPRESS_FLAG:=l
endif
CBFS_PAYLOAD_COMPRESS_FLAG:=
CBFS_PAYLOAD_COMPRESS_NAME:=none
ifeq ($(CONFIG_COMPRESSED_PAYLOAD_LZMA),y)
CBFS_PAYLOAD_COMPRESS_FLAG:=l
CBFS_PAYLOAD_COMPRESS_NAME:=LZMA
endif
ifneq ($(CONFIG_LOCALVERSION),"")
COREBOOT_EXTRA_VERSION := -$(call strip_quotes,$(CONFIG_LOCALVERSION))
endif
INCLUDES := -Isrc -Isrc/include -I$(obj) -Isrc/arch/$(ARCHDIR-y)/include
INCLUDES += -Isrc/devices/oprom/include
# abspath is a workaround for romcc
INCLUDES += -include $(src)/include/kconfig.h
CFLAGS = $(INCLUDES) -Os -pipe -g -nostdinc
CFLAGS += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs
CFLAGS += -Wstrict-aliasing -Wshadow
ifeq ($(CONFIG_WARNINGS_ARE_ERRORS),y)
CFLAGS += -Werror
endif
CFLAGS += -fno-common -ffreestanding -fno-builtin -fomit-frame-pointer
additional-dirs := $(objutil)/cbfstool $(objutil)/romcc $(objutil)/options
#######################################################################
# generate build support files
$(obj)/build.h: .xcompile
@printf " GEN build.h\n"
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)\"\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 "#define COREBOOT_DMI_DATE \"`LANG= date +"%m/%d/%Y"`\"\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
$(obj)/ldoptions: $(obj)/config.h
awk '/^#define ([^"])* ([^"])*$$/ {gsub("\\r","",$$3); print $$2 " = " $$3 ";";}' $< > $@
build-dirs:
mkdir -p $(objcbfs) $(objgenerated)
#######################################################################
# Build the tools
CBFSTOOL:=$(obj)/cbfstool
$(CBFSTOOL): $(objutil)/cbfstool/cbfstool
cp $< $@
_WINCHECK=$(shell uname -o 2> /dev/null)
STACK=
ifeq ($(_WINCHECK),Msys)
STACK=-Wl,--stack,16384000
endif
ifeq ($(_WINCHECK),Cygwin)
STACK=-Wl,--stack,16384000
endif
ROMCC:= $(objutil)/romcc/romcc
$(ROMCC): $(top)/util/romcc/romcc.c
@printf " HOSTCC $(subst $(obj)/,,$(@)) (this may take a while)\n"
@# 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 $@ $<
#######################################################################
# needed objects that every mainboard uses
# Creation of these is architecture and mainboard independent
$(obj)/mainboard/$(MAINBOARDDIR)/static.c: $(src)/mainboard/$(MAINBOARDDIR)/devicetree.cb $(objutil)/sconfig/sconfig
@printf " SCONFIG $(subst $(src)/,,$(<))\n"
mkdir -p $(obj)/mainboard/$(MAINBOARDDIR)
$(objutil)/sconfig/sconfig $(MAINBOARDDIR) $(obj)/mainboard/$(MAINBOARDDIR)
ramstage-y+=$(obj)/mainboard/$(MAINBOARDDIR)/static.c
romstage-y+=$(obj)/mainboard/$(MAINBOARDDIR)/static.c
$(objutil)/%.o: $(objutil)/%.c
@printf " HOSTCC $(subst $(objutil)/,,$(@))\n"
$(HOSTCC) -MMD -I$(subst $(objutil)/,util/,$(dir $<)) -I$(dir $<) $(HOSTCFLAGS) -c -o $@ $<
$(obj)/%.ramstage.o $(abspath $(obj))/%.ramstage.o: $(obj)/%.c $(obj)/config.h $(OPTION_TABLE_H)
@printf " CC $(subst $(obj)/,,$(@))\n"
$(CC) -MMD $(CFLAGS) -c -o $@ $<
$(obj)/%.romstage.o $(abspath $(obj))/%.romstage.o: $(obj)/%.c $(obj)/config.h $(OPTION_TABLE_H)
@printf " CC $(subst $(obj)/,,$(@))\n"
$(CC) -MMD -D__PRE_RAM__ $(CFLAGS) -c -o $@ $<
#######################################################################
# Clean up rules
clean-abuild:
rm -rf coreboot-builds
clean-for-update-target:
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.S $(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)/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
$(MAKE) -C payloads/external/SeaBIOS -f Makefile.inc clean OUT=$(abspath $(obj)) HOSTCC="$(HOSTCC)" CC="$(CC)" LD="$(LD)"
clean-target:
rm -f $(obj)/coreboot*
#######################################################################
# Development utilities
printcrt0s:
@echo crt0s=$(crt0s)
@echo ldscripts=$(ldscripts)
update:
dongle.py -c /dev/term/1 $(obj)/coreboot.rom EOF
lint lint-stable:
FAILED=0; LINTLOG=`mktemp`; \
for script in util/lint/$@-*; do \
echo; echo `basename $$script`; \
grep "^# DESCR:" $$script | sed "s,.*DESCR: *,," ; \
echo ========; \
$$script > $$LINTLOG; \
if [ `cat $$LINTLOG | wc -l` -eq 0 ]; then \
printf "success\n\n"; \
else \
echo test failed: ; \
cat $$LINTLOG; \
rm -f $$LINTLOG; \
FAILED=$$(( $$FAILED + 1 )); \
fi; \
echo ========; \
done; \
test $$FAILED -eq 0 || { echo "ERROR: $$FAILED test(s) failed." && exit 1; }; \
rm -f $$LINTLOG
gitconfig:
for hook in commit-msg pre-commit ; do \
if [ util/gitconfig/$$hook -nt .git/hooks/$$hook -o \
! -x .git/hooks/$$hook ]; then \
cp util/gitconfig/$$hook .git/hooks/$$hook; \
chmod +x .git/hooks/$$hook; \
fi; \
done
(git config --global user.name >/dev/null && git config --global user.email >/dev/null) || (printf 'Please configure your name and email in git:\n\n git config --global user.name "Your Name Comes Here"\n git config --global user.email your.email@example.com\n'; exit 1)
crossgcc: clean-for-update
$(MAKE) -C util/crossgcc build-without-gdb
crosstools: clean-for-update
$(MAKE) -C util/crossgcc build
crossgcc-clean: clean-for-update
$(MAKE) -C util/crossgcc clean
tools: $(objutil)/kconfig/conf $(objutil)/cbfstool/cbfstool $(objutil)/nvramtool/nvramtool $(objutil)/romcc/romcc $(objutil)/sconfig/sconfig
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