mirror of
https://github.com/fail0verflow/switch-coreboot.git
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6ab0d9703d
are undefined (trivial). Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@151 f3766cd6-281f-0410-b1cd-43a5c92072e9
153 lines
5 KiB
Makefile
153 lines
5 KiB
Makefile
##
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## This file is part of the LinuxBIOS project.
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##
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## Copyright (C) 2006-2007 coresystems GmbH
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 2 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program; if not, write to the Free Software
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## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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##
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ifeq ($(CONFIG_ARCH_X86),y)
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INITCFLAGS := $(CFLAGS) -I$(src)/include/cpu/generic/x86 -I$(src)/include \
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-fno-builtin
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SILENT := &> /dev/null
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#
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# Build the final ROM image.
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#
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# These are the main LinuxBIOS components. Do not change the order unless you
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# know exactly what you are doing.
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#
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LINUXBIOS_COMPONENTS := linuxbios.lar linuxbios.vpd stage0.init
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$(obj)/linuxbios.rom: $(patsubst %,$(obj)/%,$(LINUXBIOS_COMPONENTS))
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$(Q)cat $^ > $@
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#
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# Build the LAR archive.
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#
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# LinuxBIOS v3 is completely modular and based on a very small startup
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# code (stage0) plus a LAR archive. The LAR archive may contain any number
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# of stages, payloads and option ROMs.
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#
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$(obj)/linuxbios.lar: $(obj)/util/lar/lar lzma $(obj)/linuxbios.initram $(obj)/linuxbios.stage2 payload
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$(Q)printf "Building LinuxBIOS archive... \n"
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$(Q)rm -rf $(obj)/lar.tmp
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$(Q)mkdir $(obj)/lar.tmp
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$(Q)mkdir $(obj)/lar.tmp/normal
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$(Q)cp $(obj)/linuxbios.initram $(obj)/lar.tmp/normal/initram
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$(Q)cp $(obj)/linuxbios.stage2 $(obj)/lar.tmp/normal/stage2
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$(Q)cp $(PAYLOAD) $(obj)/lar.tmp/normal/payload
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$(Q)printf " "
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$(Q)cd $(obj)/lar.tmp && ../util/lar/lar c ../linuxbios.lar.pre normal/initram normal/stage2 normal/payload
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$(Q)# TODO: Dynamically pad the LAR archive. bs is image size - bootblock size (16k)
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$(Q)dd if=$(obj)/linuxbios.lar.pre of=$(obj)/linuxbios.lar \
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bs=245760 count=1 conv=sync $(SILENT)
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#
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# LinuxBIOS stage0. This is the LinuxBIOS "boot block code".
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# It enables Cache-as-RAM and parses the LAR archive for an
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# initram module and the various stages and payload files.
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#
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STAGE0_CONSOLE_OBJ = $(obj)/vtxprintf.o $(obj)/vsprintf.o
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STAGE0_LIB_OBJ = $(obj)/uart8250.o $(obj)/mem.o $(obj)/elfboot.o \
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$(obj)/lar.o
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STAGE0_ARCH_X86_OBJ = $(obj)/cachemain.o $(obj)/console.o $(obj)/serial.o \
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$(obj)/archelfboot.o
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ifeq ($(CONFIG_CAR_TYPE_I586),y)
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STAGE0_CAR_OBJ = $(obj)/stage0_i586.o
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else
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STAGE0_CAR_OBJ = $(obj)/stage0_i586.o
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endif
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STAGE0_OBJ := $(STAGE0_CONSOLE_OBJ) $(STAGE0_LIB_OBJ) $(STAGE0_ARCH_X86_OBJ) $(STAGE0_CAR_OBJ)
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$(obj)/stage0.init: $(STAGE0_OBJ)
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$(Q)printf "Building stage0.init... "
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$(Q)# We need to be careful. If stage0.o gets bigger than
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$(Q)# 0x4000 - 0x100, we will end up with a 4 gig file.
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$(Q)# I wonder if that behavior is on purpose.
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$(Q)$(CC) -nostdlib -static -T $(src)/arch/x86/ldscript.ld \
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$(STAGE0_OBJ) -o $(obj)/stage0.o
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$(Q)objcopy -O binary $(obj)/stage0.o $(obj)/stage0.init
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$(Q)test `wc -c < $(obj)/stage0.init` -gt 16128 && \
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printf "Error. Bootblock got too big.\n" || true
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$(Q)printf "done\n"
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#
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# This is the rest of LinuxBIOS (v2: linuxbios_ram.rom).
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# Is this maybe platform independent, except for the "drivers"?
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# Where should it be built, maybe in device/?
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#
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# TODO: This should be compressed with the default compressor.
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#
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STAGE2_LIB_OBJ = $(obj)/stage2.o $(obj)/clog2.o $(obj)/mem.o $(obj)/malloc.o \
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$(obj)/tables.o $(obj)/delay.o
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STAGE2_ARCH_X86_OBJ = $(obj)/archtables.o $(obj)/linuxbios_table.o $(obj)/udelay_io.o
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STAGE2_MAINBOARD_OBJ = $(obj)/mainboard.o
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STAGE2_DYNAMIC_OBJ = $(obj)/statictree.o
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STAGE2_OBJ := $(STAGE2_LIB_OBJ) $(STAGE2_DEVICE_OBJ) $(STAGE2_ARCH_X86_OBJ)
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STAGE2_OBJ += $(STAGE2_MAINBOARD_OBJ) $(STAGE2_DYNAMIC_OBJ) $(STAGE2_CHIPSET_OBJ)
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$(obj)/linuxbios.stage2: $(obj)/stage0.init $(STAGE2_OBJ)
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$(Q)printf "Building linuxbios.stage2... "
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$(Q)# leave a .o with full symbols in it for debugging.
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$(Q)$(LD) -R $(obj)/stage0.o -Ttext 0x1000 --entry=stage2 \
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-o $(obj)/linuxbios.stage2.o $(STAGE2_OBJ)
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$(Q)objcopy -O binary $(obj)/linuxbios.stage2.o $(obj)/linuxbios.stage2
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$(Q)printf "done\n"
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#
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# The payload as we love it. Get it from somewhere.
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# Is this a place to incorporate buildrom?
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#
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# TODO: This is not implemented yet.
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# TODO: This needs to be compressed with the default compressor.
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#
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payload:
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$(Q)printf "Building payload... skipped\n"
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# build rules
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#
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$(obj)/%.o: $(src)/arch/x86/%.c
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$(Q)$(CC) $(INITCFLAGS) -c $< -o $@
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$(obj)/%.o: $(src)/mainboard/$(MAINBOARDDIR)/%.c
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$(Q)$(CC) $(INITCFLAGS) -c $< -o $@
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# Building asm stub
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$(obj)/stage0%.o: $(src)/arch/x86/stage0%.S
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$(Q)$(CC) -E $(LINUXBIOSINCLUDE) $< \
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-o $(obj)/stage0_asm.s -DBOOTBLK=0x1f00 -DRESRVED=0xf0 \
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-DDATE=\"`date +%Y/%m/%d`\"
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$(Q)$(AS) $(obj)/stage0_asm.s -o $@
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endif
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