mirror of
https://github.com/fail0verflow/switch-coreboot.git
synced 2025-05-04 01:39:18 -04:00
3d4b4784e5
replace with LAR" series; this set is for arch/x86. note that the payload is now payload/segment0, payload/segment1, etc. I've extended linuxbios to look for these. Note that you can now see all the things that get loaded ;they're no longer hidden in an ELF header somewhere. Elf failures are gone! Note that I've left legacy elf support in, for now, but recommend we get rid of it as soon as possible. patch attached. This is a first pass. lar.c needs some refactoring but I want to get the cmdline going. You can now have a linux payload and it will uncompress with no problems. This has been tested with filo and BOCHS. Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@482 f3766cd6-281f-0410-b1cd-43a5c92072e9
229 lines
8.1 KiB
Makefile
229 lines
8.1 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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## (Written by Stefan Reinauer <stepan@coresystems.de> for 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/arch/x86 -I$(src)/include \
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-I$(obj) -fno-builtin
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SILENT := >/dev/null 2>&1
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#
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# Build the ROM Image / LAR archive
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#
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# LinuxBIOS v3 is completely modular. One module, the bootblock (stage0),
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# is mandatory. All modules are packed together in a LAR archive.
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# The LAR archive may contain any number of stages, payloads and option ROMs.
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#
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ROM_SIZE := $(shell expr $(CONFIG_LINUXBIOS_ROMSIZE_KB) \* 1024)
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LARFILES := nocompress:normal/initram normal/stage2 nocompress:normal/option_table
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ifneq ($(CONFIG_PAYLOAD_NONE),y)
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LARFILES += normal/payload
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endif
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DECOMPRESSORS :=
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ifeq ($(CONFIG_COMPRESSION_LZMA),y)
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DECOMPRESSORS += lzma.o
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endif
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ifeq ($(CONFIG_COMPRESSION_NRV2B),y)
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DECOMPRESSORS += nrv2b.o
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endif
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COMPRESSFLAG :=
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ifeq ($(CONFIG_DEFAULT_COMPRESSION_LZMA),y)
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COMPRESSFLAG := -C lzma
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endif
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ifeq ($(CONFIG_DEFAULT_COMPRESSION_NRV2B),y)
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COMPRESSFLAG := -C nrv2b
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endif
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$(obj)/linuxbios.rom $(obj)/linuxbios.map: $(obj)/linuxbios.bootblock $(obj)/util/lar/lar lzma nrv2b $(obj)/linuxbios.initram $(obj)/linuxbios.stage2 $(obj)/option_table
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$(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 $(obj)/option_table $(obj)/lar.tmp/normal/option_table
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ifeq ($(CONFIG_PAYLOAD_NONE),y)
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$(Q)printf " PAYLOAD none (as specified by user)\n"
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else
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$(Q)# TODO: Print sth. other than $(CONFIG_PAYLOAD_FILE) if compressed.
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$(Q)if [ -r $(CONFIG_PAYLOAD_FILE) ]; then \
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printf " PAYLOAD $(CONFIG_PAYLOAD_FILE)\n"; \
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cp $(CONFIG_PAYLOAD_FILE) $(obj)/lar.tmp/normal/payload; \
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else \
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printf "Error: payload file '$(CONFIG_PAYLOAD_FILE)' not found.\n"; \
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exit 1; \
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fi
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endif
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$(Q)printf " LAR $(subst $(shell pwd)/,,$(@))\n"
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$(Q)rm -f $(obj)/linuxbios.rom
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$(Q)cd $(obj)/lar.tmp && ../util/lar/lar $(PARSEELF) $(COMPRESSFLAG) -c \
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../linuxbios.rom \
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$(LARFILES) \
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-s $(ROM_SIZE) -b $(obj)/linuxbios.bootblock
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$(Q)# QEMU wants bios.bin:
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$(Q)# Run "qemu -L build/ -serial stdio -hda /dev/zero".
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$(Q)printf " CP $(subst $(shell pwd)/,,$(obj)/bios.bin)\n"
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$(Q)cp $@ $(obj)/bios.bin
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$(Q)echo "LinuxBIOS ROM Image:" > $(obj)/linuxbios.map
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$(Q)$(obj)/util/lar/lar -l $(obj)/linuxbios.rom >> $(obj)/linuxbios.map
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$(Q)(echo; echo "Stage 0/1 Map:") >> $(obj)/linuxbios.map
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$(Q)cat $(obj)/stage0.init.map >> $(obj)/linuxbios.map
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$(Q)(echo; echo "Stage Initram Map:") >> $(obj)/linuxbios.map
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$(Q)cat $(obj)/linuxbios.initram.map >> $(obj)/linuxbios.map
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$(Q)(echo; echo "Stage 2 Map:") >> $(obj)/linuxbios.map
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$(Q)cat $(obj)/linuxbios.stage2.map >> $(obj)/linuxbios.map
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$(obj)/linuxbios.bootblock: $(obj)/linuxbios.vpd $(obj)/stage0.init
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$(Q)printf " BUILD $(subst $(shell pwd)/,,$(@))\n"
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$(Q)cat $^ > $@
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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_LIB_OBJ = uart8250.o mem.o elfboot.o lar.o delay.o vtxprintf.o \
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vsprintf.o console.o $(DECOMPRESSORS)
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STAGE0_ARCH_X86_OBJ = stage1.o serial.o archelfboot.o speaker.o \
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udelay_io.o mc146818rtc.o post_code.o
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ifeq ($(CONFIG_CPU_I586),y)
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STAGE0_CAR_OBJ = stage0_i586.o
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else
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ifeq ($(CONFIG_CPU_AMD_GEODELX),y)
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STAGE0_CAR_OBJ = geodelx/stage0.o
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STAGE0_ARCH_X86_OBJ += geodelx/stage1.o
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else
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STAGE0_CAR_OBJ = stage0_i586.o
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endif
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endif
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ifeq ($(CONFIG_NOELF), y)
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PARSEELF = -e
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else
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PARSEELF =
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endif
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STAGE0_OBJ := $(patsubst %,$(obj)/lib/%,$(STAGE0_LIB_OBJ)) \
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$(patsubst %,$(obj)/arch/x86/%,$(STAGE0_ARCH_X86_OBJ)) \
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$(patsubst %,$(obj)/arch/x86/%,$(STAGE0_CAR_OBJ)) \
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$(STAGE0_MAINBOARD_OBJ) $(STAGE0_CHIPSET_OBJ)
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$(obj)/stage0.o $(obj)/stage0.init: $(STAGE0_OBJ)
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$(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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$(Q)# Note: we invoke gcc (instead of ld directly) here, as we hit
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$(Q)# strange problems in the past. It seems that only gcc knows how
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$(Q)# to properly invoke ld.
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$(Q)printf " CC $(subst $(shell pwd)/,,$(@))\n"
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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)printf " OBJCOPY $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(OBJCOPY) -O binary $(obj)/stage0.o $(obj)/stage0.init
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$(Q)printf " TEST $(subst $(shell pwd)/,,$(@))\n"
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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 " NM $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(NM) $(obj)/stage0.o | sort -u > $(obj)/stage0.init.map
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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 = stage2.o clog2.o mem.o tables.o delay.o compute_ip_checksum.o
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STAGE2_ARCH_X86_OBJ = archtables.o linuxbios_table.o udelay_io.o
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STAGE2_ARCH_X86_OBJ += pci_ops_auto.o pci_ops_conf1.o pci_ops_conf2.o
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STAGE2_ARCH_X86_OBJ += keyboard.o i8259.o isa-dma.o
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STAGE2_DYNAMIC_OBJ = statictree.o
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STAGE2_OBJ := $(patsubst %,$(obj)/lib/%,$(STAGE2_LIB_OBJ)) \
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$(patsubst %,$(obj)/arch/x86/%,$(STAGE2_ARCH_X86_OBJ)) \
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$(patsubst %,$(obj)/device/%,$(STAGE2_DEVICE_OBJ)) \
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$(patsubst %,$(obj)/mainboard/$(MAINBOARDDIR)/%,$(STAGE2_MAINBOARD_OBJ)) \
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$(patsubst %,$(obj)/mainboard/$(MAINBOARDDIR)/%,$(STAGE2_DYNAMIC_OBJ))
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STAGE2_OBJ += $(STAGE2_CHIPSET_OBJ)
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ifeq ($(CONFIG_PCI_OPTION_ROM_RUN),y)
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ifeq ($(CONFIG_PCI_OPTION_ROM_RUN_X86EMU),y)
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# x86emu wants libgcc
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ifneq ($(strip $(CC)),)
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LIBGCC_FILE_NAME := $(shell $(CC) -print-libgcc-file-name)
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endif
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endif
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STAGE2_OBJ += $(obj)/util/x86emu/libx86emu.a $(LIBGCC_FILE_NAME)
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endif
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$(obj)/linuxbios.stage2 $(obj)/linuxbios.stage2.map: $(obj)/stage0.init $(STAGE2_OBJ)
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$(Q)# leave a .o with full symbols in it for debugging.
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$(Q)printf " LD $(subst $(shell pwd)/,,$(@))\n"
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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)printf " OBJCOPY $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(OBJCOPY) -O binary $(obj)/linuxbios.stage2.o $(obj)/linuxbios.stage2
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$(Q)$(NM) $(obj)/linuxbios.stage2.o | sort -u > $(obj)/linuxbios.stage2.map
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#
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# Build rules.
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#
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$(obj)/arch/x86/%.o: $(src)/arch/x86/%.c
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$(Q)mkdir -p $(dir $@)
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$(Q)printf " CC $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(CC) $(INITCFLAGS) -c $< -o $@
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# Building asm stub.
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$(obj)/arch/x86/stage0%.o: $(src)/arch/x86/stage0%.S
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$(Q)printf " CC $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(CC) -E $(LINUXBIOSINCLUDE) $< \
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-o $(obj)/arch/x86/stage0_asm.s -DBOOTBLK=0x1f00 \
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-DRESRVED=0xf0 -DDATE=\"`date +%Y/%m/%d`\"
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$(Q)printf " AS $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(AS) $(obj)/arch/x86/stage0_asm.s -o $@
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$(obj)/arch/x86/geodelx/stage0.o: $(src)/arch/x86/geodelx/stage0.S
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$(Q)mkdir -p $(dir $@)
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$(Q)printf " CC $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(CC) -E $(LINUXBIOSINCLUDE) $< \
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-o $(obj)/arch/x86/stage0_asm.s -DBOOTBLK=0x1f00 \
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-DRESRVED=0xf0 -DDATE=\"`date +%Y/%m/%d`\"
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$(Q)printf " AS $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(AS) $(obj)/arch/x86/stage0_asm.s -o $@
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endif
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