src/arch/x86/Makefile.inc

   1 ##
   2 ## This file is part of the coreboot project.
   3 ##
   4 ## Copyright (C) 2009-2010 coresystems GmbH
   5 ## Copyright (C) 2009 Ronald G. Minnich
   6 ##
   7 ## This program is free software; you can redistribute it and/or modify
   8 ## it under the terms of the GNU General Public License as published by
   9 ## the Free Software Foundation; version 2 of the License.
  10 ##
  11 ## This program is distributed in the hope that it will be useful,
  12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 ## GNU General Public License for more details.
  15 ##
  16 ## You should have received a copy of the GNU General Public License
  17 ## along with this program; if not, write to the Free Software
  18 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19 ##
  20
  21 #######################################################################
  22 # Take care of subdirectories
  23 subdirs-y += boot
  24 # subdirs-y += init
  25 subdirs-y += lib
  26 subdirs-y += smp
  27
  28 OPTION_TABLE_H:=
  29 ifeq ($(CONFIG_HAVE_OPTION_TABLE),y)
  30 cbfs-files-y += cmos_layout.bin
  31 cmos_layout.bin-file = $(obj)/cmos_layout.bin
  32 cmos_layout.bin-type = 0x01aa
  33
  34 OPTION_TABLE_H:=$(obj)/option_table.h
  35 endif
  36
  37 #######################################################################
  38 # Build the final rom image
  39 COREBOOT_ROM_DEPENDENCIES:=
  40 ifeq ($(CONFIG_PAYLOAD_ELF),y)
  41 COREBOOT_ROM_DEPENDENCIES+=$(CONFIG_PAYLOAD_FILE)
  42 endif
  43 ifeq ($(CONFIG_PAYLOAD_SEABIOS),y)
  44 COREBOOT_ROM_DEPENDENCIES+=seabios
  45 endif
  46 ifeq ($(CONFIG_PAYLOAD_FILO),y)
  47 COREBOOT_ROM_DEPENDENCIES+=filo
  48 endif
  49 ifeq ($(CONFIG_AP_CODE_IN_CAR),y)
  50 COREBOOT_ROM_DEPENDENCIES+=$(obj)/coreboot_ap
  51 endif
  52 ifeq ($(CONFIG_GEODE_VSA_FILE),y)
  53 COREBOOT_ROM_DEPENDENCIES+=$(CONFIG_VSA_FILENAME)
  54 endif
  55
  56 extract_nth=$(word $(1), $(subst |, ,$(2)))
  57
  58 ifneq ($(CONFIG_UPDATE_IMAGE),y)
  59 prebuild-files = \
  60         $(foreach file,$(cbfs-files), \
  61         $(CBFSTOOL) $@.tmp add $(call extract_nth,1,$(file)) \
  62         $(call extract_nth,2,$(file)) $(call extract_nth,3,$(file)) \
  63         $(call extract_nth,4,$(file)) &&)
  64 prebuilt-files = $(foreach file,$(cbfs-files), $(call extract_nth,1,$(file)))
  65
  66 $(obj)/coreboot.pre1: $(obj)/coreboot.bootblock $$(prebuilt-files) $(CBFSTOOL)
  67         $(CBFSTOOL) $@.tmp create $(CONFIG_COREBOOT_ROMSIZE_KB)K $(obj)/coreboot.bootblock
  68         $(prebuild-files) true
  69         mv $@.tmp $@
  70 else
  71 .PHONY: $(obj)/coreboot.pre1
  72 $(obj)/coreboot.pre1: $(CBFSTOOL)
  73         mv $(obj)/coreboot.rom $@
  74 endif
  75
  76 $(obj)/coreboot.rom: $(obj)/coreboot.pre $(obj)/coreboot_ram $(CBFSTOOL) $(call strip_quotes,$(COREBOOT_ROM_DEPENDENCIES))
  77         @printf "    CBFS       $(subst $(obj)/,,$(@))\n"
  78         cp $(obj)/coreboot.pre $@.tmp
  79         if [ -f $(obj)/coreboot_ap ]; \
  80         then \
  81                 $(CBFSTOOL) $@.tmp add-stage $(obj)/coreboot_ap $(CONFIG_CBFS_PREFIX)/coreboot_ap $(CBFS_COMPRESS_FLAG); \
  82         fi
  83         $(CBFSTOOL) $@.tmp add-stage $(obj)/coreboot_ram $(CONFIG_CBFS_PREFIX)/coreboot_ram $(CBFS_COMPRESS_FLAG)
  84 ifeq ($(CONFIG_PAYLOAD_NONE),y)
  85         @printf "    PAYLOAD    \e[1;31mnone (as specified by user)\e[0m\n"
  86 endif
  87 ifeq ($(CONFIG_PAYLOAD_ELF),y)
  88         @printf "    PAYLOAD    $(CONFIG_PAYLOAD_FILE) (compression: $(CBFS_PAYLOAD_COMPRESS_NAME))\n"
  89         $(CBFSTOOL) $@.tmp add-payload $(CONFIG_PAYLOAD_FILE) $(CONFIG_CBFS_PREFIX)/payload $(CBFS_PAYLOAD_COMPRESS_FLAG)
  90 endif
  91 ifeq ($(CONFIG_PAYLOAD_SEABIOS),y)
  92         @printf "    PAYLOAD    SeaBIOS (internal, compression: $(CBFS_PAYLOAD_COMPRESS_NAME))\n"
  93         $(CBFSTOOL) $@.tmp add-payload $(CONFIG_PAYLOAD_FILE) $(CONFIG_CBFS_PREFIX)/payload $(CBFS_PAYLOAD_COMPRESS_FLAG)
  94 endif
  95 ifeq ($(CONFIG_PAYLOAD_FILO),y)
  96         @printf "    PAYLOAD    FILO (internal, compression: $(CBFS_PAYLOAD_COMPRESS_NAME))\n"
  97         $(CBFSTOOL) $@.tmp add-payload $(CONFIG_PAYLOAD_FILE) $(CONFIG_CBFS_PREFIX)/payload $(CBFS_PAYLOAD_COMPRESS_FLAG)
  98 endif
  99 ifeq ($(CONFIG_GEODE_VSA_FILE),y)
 100         @printf "    VSA        $(CONFIG_VSA_FILENAME)\n"
 101         $(OBJCOPY) --set-start 0x20 --adjust-vma 0x60000 -I binary -O elf32-i386 -B i386 $(CONFIG_VSA_FILENAME) $(obj)/vsa.o
 102         $(LD) -m elf_i386 -e 0x60020 --section-start .data=0x60000 $(obj)/vsa.o -o $(obj)/vsa.elf
 103         $(CBFSTOOL) $@.tmp add-stage $(obj)/vsa.elf vsa
 104 endif
 105 ifeq ($(CONFIG_INCLUDE_CONFIG_FILE),y)
 106         @printf "    CONFIG     $(DOTCONFIG)\n"
 107         if [ -f $(DOTCONFIG) ]; then \
 108         echo "# This image was built using git revision" `git rev-parse HEAD` > $(obj)/config.tmp ; \
 109         sed -e '/^#/d' -e '/^ *$$/d' $(DOTCONFIG) >> $(obj)/config.tmp ; \
 110         $(CBFSTOOL) $@.tmp add $(obj)/config.tmp config raw; rm -f $(obj)/config.tmp ; fi
 111 endif
 112         mv $@.tmp $@
 113         @printf "    CBFSPRINT  $(subst $(obj)/,,$(@))\n\n"
 114         $(CBFSTOOL) $@ print
 115
 116 stripped_vgabios_id = $(call strip_quotes,$(CONFIG_VGA_BIOS_ID))
 117 cbfs-files-$(CONFIG_VGA_BIOS) += pci$(stripped_vgabios_id).rom
 118 pci$(stripped_vgabios_id).rom-file := $(call strip_quotes,$(CONFIG_VGA_BIOS_FILE))
 119 pci$(stripped_vgabios_id).rom-type := optionrom
 120
 121 cbfs-files-$(CONFIG_INTEL_MBI) += mbi.bin
 122 mbi.bin-file := $(call strip_quotes,$(CONFIG_MBI_FILE))
 123 mbi.bin-type := mbi
 124
 125 cbfs-files-$(CONFIG_BOOTSPLASH) += bootsplash.jpg
 126 bootsplash.jpg-file := $(call strip_quotes,$(CONFIG_BOOTSPLASH_FILE))
 127 bootsplash.jpg-type := bootsplash
 128
 129 #######################################################################
 130 # i386 specific tools
 131
 132 $(OPTION_TABLE_H): $(objutil)/options/build_opt_tbl $(top)/src/mainboard/$(MAINBOARDDIR)/cmos.layout
 133         @printf "    OPTION     $(subst $(obj)/,,$(@))\n"
 134         $(objutil)/options/build_opt_tbl --config $(top)/src/mainboard/$(MAINBOARDDIR)/cmos.layout --header $@
 135
 136 $(obj)/cmos_layout.bin: $(objutil)/options/build_opt_tbl $(top)/src/mainboard/$(MAINBOARDDIR)/cmos.layout
 137         @printf "    OPTION     $(subst $(obj)/,,$(@))\n"
 138         $(objutil)/options/build_opt_tbl --config $(top)/src/mainboard/$(MAINBOARDDIR)/cmos.layout --binary $@
 139
 140 $(objutil)/options/build_opt_tbl: $(top)/util/options/build_opt_tbl.c $(top)/src/include/pc80/mc146818rtc.h $(top)/src/include/boot/coreboot_tables.h
 141         @printf "    HOSTCC     $(subst $(obj)/,,$(@))\n"
 142         $(HOSTCC) $(HOSTCFLAGS) $< -o $@
 143
 144 #######################################################################
 145 # Build the coreboot_ram (stage 2)
 146
 147 $(obj)/coreboot_ram: $(obj)/coreboot_ram.o $(src)/arch/x86/coreboot_ram.ld #ldoptions
 148         @printf "    CC         $(subst $(obj)/,,$(@))\n"
 149         $(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(src)/arch/x86/coreboot_ram.ld $(obj)/coreboot_ram.o
 150         $(NM) -n $(obj)/coreboot_ram | sort > $(obj)/coreboot_ram.map
 151         $(OBJCOPY) --only-keep-debug $@ $(obj)/coreboot_ram.debug
 152         $(OBJCOPY) --strip-debug $@
 153         $(OBJCOPY) --add-gnu-debuglink=$(obj)/coreboot_ram.debug $@
 154
 155 $(obj)/coreboot_ram.o: $(obj)/arch/x86/lib/c_start.ramstage.o $$(driver-objs) $(obj)/coreboot.a $(LIBGCC_FILE_NAME)
 156         @printf "    CC         $(subst $(obj)/,,$(@))\n"
 157         $(CC) -nostdlib -r -o $@ $(obj)/arch/x86/lib/c_start.ramstage.o $(driver-objs) -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(obj)/coreboot.a $(LIBGCC_FILE_NAME) -Wl,--end-group
 158
 159 $(obj)/coreboot.a: $$(ramstage-objs)
 160         @printf "    AR         $(subst $(obj)/,,$(@))\n"
 161         rm -f $(obj)/coreboot.a
 162         $(AR) cr $(obj)/coreboot.a $^
 163
 164 #######################################################################
 165 # coreboot_ap.rom
 166
 167 ifeq ($(CONFIG_AP_CODE_IN_CAR),y)
 168
 169 $(obj)/coreboot_ap: $(obj)/mainboard/$(MAINBOARDDIR)/ap_romstage.o
 170         @printf "    CC         $(subst $(obj)/,,$(@))\n"
 171         $(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(src)/arch/x86/init/ldscript_apc.lb $^
 172         $(OBJCOPY) --only-keep-debug $@ $(obj)/coreboot_ap.debug
 173         $(OBJCOPY) --strip-debug $@
 174         $(OBJCOPY) --add-gnu-debuglink=$(obj)/coreboot_ap.debug $@
 175         $(NM) -n $(obj)/coreboot_ap | sort > $(obj)/coreboot_ap.map
 176
 177
 178 endif
 179
 180 #######################################################################
 181 # done
 182
 183 crt0s = $(src)/arch/x86/init/prologue.inc
 184 ldscripts =
 185 ldscripts += $(src)/arch/x86/init/bootblock.ld
 186 crt0s += $(src)/cpu/x86/32bit/entry32.inc
 187 ldscripts += $(src)/cpu/x86/32bit/entry32.lds
 188
 189 crt0s += $(src)/cpu/x86/fpu_enable.inc
 190 ifeq ($(CONFIG_SSE),y)
 191 crt0s += $(src)/cpu/x86/sse_enable.inc
 192 endif
 193
 194 crt0s += $(cpu_incs)
 195
 196 #
 197 # FIXME move to CPU_INTEL_SOCKET_MPGA604
 198 #
 199 ifeq ($(CONFIG_BOARD_TYAN_S2735),y)
 200 crt0s += $(src)/cpu/intel/car/cache_as_ram.inc
 201 endif
 202
 203 ifeq ($(CONFIG_LLSHELL),y)
 204 crt0s += $(src)/arch/x86/llshell/llshell.inc
 205 endif
 206
 207 crt0s += $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc
 208
 209 ifeq ($(CONFIG_ROMCC),y)
 210 crt0s += $(src)/arch/x86/init/crt0_romcc_epilogue.inc
 211 endif
 212
 213 ifeq ($(CONFIG_ROMCC),y)
 214 ROMCCFLAGS ?= -mcpu=p2 -O2
 215
 216 $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc: $(src)/mainboard/$(MAINBOARDDIR)/romstage.c $(objutil)/romcc/romcc $(OPTION_TABLE_H) $(obj)/build.h $(obj)/config.h
 217         printf "    ROMCC      romstage.inc\n"
 218         $(ROMCC) -c -S $(ROMCCFLAGS) -D__PRE_RAM__ -I. $(INCLUDES) $< -o $@
 219 else
 220
 221 $(obj)/mainboard/$(MAINBOARDDIR)/ap_romstage.o: $(src)/mainboard/$(MAINBOARDDIR)/ap_romstage.c $(OPTION_TABLE_H)
 222         @printf "    CC         $(subst $(obj)/,,$(@))\n"
 223         $(CC) -MMD $(CFLAGS) -I$(src) -D__PRE_RAM__ -I. -I$(obj) -c $< -o $@
 224
 225 $(obj)/mainboard/$(MAINBOARDDIR)/romstage.pre.inc: $(src)/mainboard/$(MAINBOARDDIR)/romstage.c $(OPTION_TABLE_H) $(obj)/build.h $(obj)/config.h
 226         @printf "    CC         romstage.inc\n"
 227         $(CC) -MMD $(CFLAGS) -D__PRE_RAM__ -I$(src) -I. -I$(obj) -c -S $< -o $@
 228
 229 $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc: $(obj)/mainboard/$(MAINBOARDDIR)/romstage.pre.inc
 230         @printf "    POST       romstage.inc\n"
 231         sed -e 's/\.rodata/.rom.data/g' -e 's/\^\.text/.section .rom.text/g' \
 232                 -e 's/\^\.section \.text/.section .rom.text/g' $^ > $@.tmp
 233         mv $@.tmp $@
 234 endif
 235
 236 # Things that appear in every board
 237 romstage-srcs += $(obj)/mainboard/$(MAINBOARDDIR)/crt0.s
 238 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/mainboard.c
 239 ifeq ($(CONFIG_GENERATE_MP_TABLE),y)
 240 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/mptable.c
 241 endif
 242 ifeq ($(CONFIG_GENERATE_PIRQ_TABLE),y)
 243 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/irq_tables.c
 244 endif
 245 ifeq ($(CONFIG_BOARD_HAS_HARD_RESET),y)
 246 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/reset.c
 247 endif
 248 ifeq ($(CONFIG_GENERATE_ACPI_TABLES),y)
 249 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/acpi_tables.c
 250 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/dsdt.asl
 251 # make doesn't have arithmetic operators or greater-than comparisons
 252 ifeq ($(subst 5,4,$(CONFIG_ACPI_SSDTX_NUM)),4)
 253 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/ssdt2.asl
 254 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/ssdt3.asl
 255 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/ssdt4.asl
 256 endif
 257 ifeq ($(CONFIG_ACPI_SSDTX_NUM),5)
 258 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/ssdt5.asl
 259 endif
 260 ifeq ($(CONFIG_BOARD_HAS_FADT),y)
 261 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/fadt.c
 262 endif
 263 endif
 264
 265 ifeq ($(CONFIG_HAVE_BUS_CONFIG),y)
 266 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/get_bus_conf.c
 267 endif
 268
 269 #######################################################################
 270 # Build the final rom image
 271
 272 $(obj)/coreboot.pre: $(obj)/coreboot.romstage $(obj)/coreboot.pre1 $(CBFSTOOL)
 273         @printf "    CBFS       $(subst $(obj)/,,$(@))\n"
 274         cp $(obj)/coreboot.pre1 $@.tmp
 275         $(CBFSTOOL) $@.tmp add-stage $(obj)/romstage.elf \
 276             $(CONFIG_CBFS_PREFIX)/romstage x 0x$(shell cat $(obj)/location.txt)
 277         mv $@.tmp $@
 278 #FIXME: location.txt might require an offset of header size
 279
 280 #######################################################################
 281 # Build the bootblock
 282
 283 $(obj)/coreboot.bootblock: $(obj)/bootblock.elf
 284         @printf "    OBJCOPY    $(subst $(obj)/,,$(@))\n"
 285         $(OBJCOPY) -O binary $< $@
 286
 287 bootblock_lds = $(src)/arch/x86/init/ldscript_failover.lb
 288 bootblock_lds += $(src)/cpu/x86/16bit/entry16.lds
 289 bootblock_lds += $(src)/cpu/x86/16bit/reset16.lds
 290 bootblock_lds += $(src)/arch/x86/lib/id.lds
 291 bootblock_lds += $(chipset_bootblock_lds)
 292
 293 bootblock_inc = $(src)/arch/x86/init/prologue.inc
 294 bootblock_inc += $(src)/cpu/x86/16bit/entry16.inc
 295 bootblock_inc += $(src)/cpu/x86/16bit/reset16.inc
 296 bootblock_inc += $(src)/cpu/x86/32bit/entry32.inc
 297 bootblock_inc += $(src)/arch/x86/lib/id.inc
 298 bootblock_inc += $(chipset_bootblock_inc)
 299
 300 ifeq ($(CONFIG_SSE),y)
 301 bootblock_inc += $(src)/cpu/x86/sse_enable.inc
 302 endif
 303 bootblock_inc += $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.inc
 304 bootblock_inc += $(src)/arch/x86/lib/walkcbfs.S
 305
 306 bootblock_romccflags := -mcpu=i386 -O2 -D__PRE_RAM__
 307 ifeq ($(CONFIG_SSE),y)
 308 bootblock_romccflags := -mcpu=k7 -msse -O2 -D__PRE_RAM__
 309 endif
 310
 311 $(obj)/bootblock/ldscript.ld: $$(bootblock_lds) $(obj)/ldoptions
 312         @printf "    GEN        $(subst $(obj)/,,$(@))\n"
 313         mkdir -p $(obj)/bootblock
 314         printf '$(foreach ldscript,ldoptions $(bootblock_lds),INCLUDE "$(ldscript)"\n)' > $@
 315
 316 $(obj)/bootblock/bootblock.S: $$(bootblock_inc)
 317         @printf "    GEN        $(subst $(obj)/,,$(@))\n"
 318         mkdir -p $(obj)/bootblock
 319         printf '$(foreach crt0,$(bootblock_inc),#include "$(crt0)"\n)' > $@
 320
 321 $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.o: $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.s
 322         @printf "    CC         $(subst $(obj)/,,$(@))\n"
 323         $(CC) -Wa,-acdlns -c -o $@ $<  > $(dir $@)/crt0.disasm
 324
 325 $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.s: $(obj)/bootblock/bootblock.S $(obj)/config.h $(obj)/build.h
 326         @printf "    CC         $(subst $(obj)/,,$(@))\n"
 327         $(CC) -MMD -x assembler-with-cpp -E -I$(src)/include -I$(src)/arch/x86/include -I$(obj) -I$(obj)/bootblock -include $(obj)/build.h -include $(obj)/config.h -I. -I$(src) $< -o $@
 328
 329 $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.inc: $(src)/arch/x86/init/$(subst ",,$(CONFIG_BOOTBLOCK_SOURCE)) $(objutil)/romcc/romcc $(OPTION_TABLE_H)
 330         @printf "    ROMCC      $(subst $(obj)/,,$(@))\n"
 331         $(CC) $(INCLUDES) -MM -MT$(obj)/mainboard/$(MAINBOARDDIR)/bootblock.inc \
 332                 $< > $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.inc.d
 333         $(ROMCC) -c -S $(bootblock_romccflags) $(ROMCCFLAGS) -I. $(INCLUDES) $< -o $@
 334
 335 $(obj)/bootblock.elf: $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.o $(obj)/bootblock/ldscript.ld
 336         @printf "    LINK       $(subst $(obj)/,,$(@))\n"
 337         $(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(obj)/bootblock/ldscript.ld $<
 338         $(NM) -n $(obj)/bootblock.elf | sort > $(obj)/bootblock.map
 339         $(OBJCOPY) --only-keep-debug $@ $(obj)/bootblock.debug
 340         $(OBJCOPY) --strip-debug $@
 341         $(OBJCOPY) --add-gnu-debuglink=$(obj)/bootblock.debug $@
 342
 343 #######################################################################
 344 # Build the romstage
 345 $(obj)/coreboot.romstage: $(obj)/coreboot.pre1 $$(romstage-objs) $(obj)/romstage/ldscript.ld
 346         @printf "    LINK       $(subst $(obj)/,,$(@))\n"
 347         printf "ROMSTAGE_BASE = 0x0;\n" > $(obj)/location.ld
 348         $(CC) -nostdlib -nostartfiles -static -o $(obj)/romstage.elf -L$(obj) -T $(obj)/romstage/ldscript.ld $(romstage-objs)
 349         $(OBJCOPY) -O binary $(obj)/romstage.elf $(obj)/romstage.bin
 350         printf "ROMSTAGE_BASE = 0x" > $(obj)/location.ld
 351         $(CBFSTOOL) $(obj)/coreboot.pre1 locate $(obj)/romstage.bin $(CONFIG_CBFS_PREFIX)/romstage $(CONFIG_XIP_ROM_SIZE) > $(obj)/location.txt || { echo "The romstage is larger than XIP size. Please expand the CONFIG_XIP_ROM_SIZE" ; exit 1; }
 352         cat $(obj)/location.txt >> $(obj)/location.ld
 353         printf ';\n' >> $(obj)/location.ld
 354         $(CC) -nostdlib -nostartfiles -static -o $(obj)/romstage.elf -L$(obj) -T $(obj)/romstage/ldscript.ld $(romstage-objs)
 355         $(NM) -n $(obj)/romstage.elf | sort > $(obj)/romstage.map
 356         $(OBJCOPY) --only-keep-debug $(obj)/romstage.elf $(obj)/romstage.debug
 357         $(OBJCOPY) --strip-debug $(obj)/romstage.elf
 358         $(OBJCOPY) --add-gnu-debuglink=$(obj)/romstage.debug $(obj)/romstage.elf
 359         $(OBJCOPY) -O binary $(obj)/romstage.elf $@
 360
 361 $(obj)/romstage/ldscript.ld: $$(ldscripts) $(obj)/ldoptions
 362         @printf "    GEN        $(subst $(obj)/,,$(@))\n"
 363         mkdir -p $(obj)/romstage
 364         printf '$(foreach ldscript,ldoptions location.ld $(ldscripts),INCLUDE "$(ldscript:$(obj)/%=%)"\n)' > $@
 365
 366 $(obj)/romstage/crt0.S: $$(crt0s)
 367         @printf "    GEN        $(subst $(obj)/,,$(@))\n"
 368         mkdir -p $(obj)/romstage
 369         printf '$(foreach crt0,$(crt0s),#include "$(crt0:$(obj)/%=%)"\n)' > $@
 370
 371 $(obj)/mainboard/$(MAINBOARDDIR)/crt0.romstage.o: $(obj)/mainboard/$(MAINBOARDDIR)/crt0.s
 372         @printf "    CC         $(subst $(obj)/,,$(@))\n"
 373         $(CC) -Wa,-acdlns -c -o $@ $<  > $(dir $@)/crt0.disasm
 374
 375 $(obj)/mainboard/$(MAINBOARDDIR)/crt0.s: $(obj)/romstage/crt0.S $(obj)/config.h $(obj)/build.h
 376         @printf "    CC         $(subst $(obj)/,,$(@))\n"
 377         $(CC) -MMD -x assembler-with-cpp -E -I$(src)/include -I$(src)/arch/x86/include -I$(obj) -I$(obj)/romstage -include $(obj)/config.h -include $(obj)/build.h -I. -I$(src) $< -o $@
 378
 379 seabios:
 380         $(MAKE) -C payloads/external/SeaBIOS -f Makefile.inc \
 381                         HOSTCC="$(HOSTCC)" \
 382                         CC="$(CC)" LD="$(LD)" OBJDUMP="$(OBJDUMP)" \
 383                         OBJCOPY="$(OBJCOPY)" STRIP="$(STRIP)" \
 384                         CONFIG_SEABIOS_MASTER=$(CONFIG_SEABIOS_MASTER) \
 385                         CONFIG_SEABIOS_STABLE=$(CONFIG_SEABIOS_STABLE) \
 386                         OUT=$(abspath $(obj))
 387
 388 filo:
 389         $(MAKE) -C payloads/external/FILO -f Makefile.inc \
 390                         HOSTCC="$(HOSTCC)" \
 391                         CC="$(CC)" LD="$(LD)" OBJDUMP="$(OBJDUMP)" \
 392                         OBJCOPY="$(OBJCOPY)" STRIP="$(STRIP)" \
 393                         CONFIG_FILO_MASTER=$(CONFIG_FILO_MASTER) \
 394                         CONFIG_FILO_STABLE=$(CONFIG_FILO_STABLE)
 395