1 # SPDX-License-Identifier: GPL-2.0-only
4 GIT:=$(shell git -C "$(top)" rev-parse --git-dir 1>/dev/null 2>&1 \
10 #######################################################################
11 # normalize Kconfig variables in a central place
12 CONFIG_CBFS_PREFIX:=$(call strip_quotes,$(CONFIG_CBFS_PREFIX))
13 CONFIG_FMDFILE:=$(call strip_quotes,$(CONFIG_FMDFILE))
14 CONFIG_DEVICETREE:=$(call strip_quotes, $(CONFIG_DEVICETREE))
15 CONFIG_OVERRIDE_DEVICETREE:=$(call strip_quotes, $(CONFIG_OVERRIDE_DEVICETREE))
16 CONFIG_CHIPSET_DEVICETREE:=$(call strip_quotes, $(CONFIG_CHIPSET_DEVICETREE))
17 CONFIG_MEMLAYOUT_LD_FILE:=$(call strip_quotes, $(CONFIG_MEMLAYOUT_LD_FILE))
19 #######################################################################
20 # misleadingly named, this is the coreboot version
21 ifeq ($(KERNELVERSION),)
22 ifeq ($(BUILD_TIMELESS),1)
23 KERNELVERSION := -TIMELESS--LESSTIME-
25 KERNELVERSION := $(strip $(if $(GIT),\
26 $(shell git describe --dirty --always || git describe),\
27 $(if $(wildcard $(top)/.coreboot-version),\
28 $(shell cat $(top)/.coreboot-version),\
29 coreboot-unknown$(KERNELREVISION))))
32 COREBOOT_EXPORTS += KERNELVERSION
34 #######################################################################
35 # Basic component discovery
36 MAINBOARDDIR=$(call strip_quotes,$(CONFIG_MAINBOARD_DIR))
37 VARIANT_DIR:=$(call strip_quotes,$(CONFIG_VARIANT_DIR))
38 CARRIER_DIR:=$(call strip_quotes,$(CONFIG_CARRIER_DIR))
39 COREBOOT_EXPORTS += MAINBOARDDIR VARIANT_DIR CARRIER_DIR
41 ## Final build results, which CBFSTOOL uses to create the final
42 ## rom image file, are placed under $(objcbfs).
43 ## These typically have suffixes .debug .elf .bin and .map
44 objcbfs := $(obj)/cbfs/$(CONFIG_CBFS_PREFIX)
45 COREBOOT_EXPORTS += objcbfs
47 ## Based on the active configuration, Makefile conditionally collects
48 ## the required assembly includes and saves them in a file.
49 ## Such files that do not have a clear one-to-one relation to a source
50 ## file under src/ are placed and built under $(objgenerated)
51 objgenerated := $(obj)/generated
52 COREBOOT_EXPORTS += objgenerated
54 ## CCACHE_EXTRAFILES can be set by individual rules to help CCACHE
55 ## discover dependencies it might not notice on its own (e.g. asm (".incbin")).
56 COREBOOT_EXPORTS += CCACHE_EXTRAFILES
58 #######################################################################
59 # root rule to resolve if in build mode (ie. configuration exists)
60 real-target: $(obj)/config.h coreboot files_added
61 coreboot: build-dirs $(obj)/coreboot.rom $(obj)/cbfstool $(obj)/rmodtool $(obj)/ifwitool
63 # This target can be used in site local to run scripts or additional
64 # targets after the build completes by creating a Makefile.inc in the
65 # site-local directory with a target named 'build_complete::'
66 build_complete:: coreboot
67 printf "\nBuilt %s (%s)\n" $(MAINBOARDDIR) \
68 $(CONFIG_MAINBOARD_PART_NUMBER)
70 # This target can be used to run rules after all files were added to CBFS,
71 # for example to process FMAP regions or the entire image.
72 files_added:: build_complete
74 #######################################################################
76 PHONY+= clean-abuild coreboot check-style build-dirs build_complete
78 #######################################################################
79 # root source directories of coreboot
80 subdirs-y := src/lib src/commonlib/ src/console src/device src/acpi src/superio/common
81 subdirs-y += src/ec/acpi $(wildcard src/ec/*/*) $(wildcard src/southbridge/*/*)
82 subdirs-y += $(wildcard src/soc/*/*) $(wildcard src/northbridge/*/*)
83 subdirs-y += $(wildcard src/superio/*) $(wildcard src/superio/*/*)
84 subdirs-y += $(wildcard src/drivers/*) $(wildcard src/drivers/*/*) $(wildcard src/drivers/*/*/*)
85 subdirs-y += src/cpu src/vendorcode
86 subdirs-y += util/cbfstool util/sconfig util/nvramtool util/pgtblgen util/amdfwtool
87 subdirs-y += util/futility util/marvell util/bincfg util/supermicro util/qemu
88 subdirs-y += util/ifdtool
89 subdirs-y += $(wildcard src/arch/*)
90 subdirs-y += src/mainboard/$(MAINBOARDDIR)
91 subdirs-y += src/security
92 subdirs-y += payloads payloads/external
94 subdirs-y += site-local
95 subdirs-y += util/checklist util/testing
97 #######################################################################
98 # Add source classes and their build options
99 classes-y := ramstage romstage bootblock decompressor postcar smm smmstub cpu_microcode verstage
101 # Add a special 'all' class to add sources to all stages
102 $(call add-special-class,all)
103 all-handler = $(foreach class,bootblock verstage romstage postcar ramstage,$(eval $(class)-y += $(2)))
105 $(call add-special-class,verstage_x86)
106 ifeq ($(CONFIG_ARCH_VERSTAGE_X86_32)$(CONFIG_ARCH_VERSTAGE_X86_64),y)
107 verstage_x86-handler = $(eval verstage-y += $(2))
109 verstage_x86-handler =
112 # Add dynamic classes for rmodules
113 $(foreach supported_arch,$(ARCH_SUPPORTED), \
114 $(eval $(call define_class,rmodules_$(supported_arch),$(supported_arch))))
115 # Provide a macro to determine environment for free standing rmodules.
116 $(foreach supported_arch,$(ARCH_SUPPORTED), \
117 $(eval rmodules_$(supported_arch)-generic-ccopts += -D__RMODULE__))
119 #######################################################################
120 # Helper functions for math, strings, and various file placement matters.
121 # macros work on all formats understood by printf(1)
122 # values are space separated if using more than one value
124 # int-add: adds an arbitrary length list of integers
125 # int-subtract: subtracts the second of two integers from the first
126 # int-multiply: multiplies an arbitrary length list of integers
127 # int-divide: divides the first integer by the second
128 # int-remainder: arithmetic remainder of the first number divided by the second
129 # int-shift-left: Shift $1 left by $2 bits
130 # int-lt: 1 if the first value is less than the second. 0 otherwise
131 # int-gt: 1 if the first values is greater than the second. 0 otherwise
132 # int-eq: 1 if the two values are equal. 0 otherwise
133 # int-align: align $1 to $2 units
134 # file-size: returns the filesize of the given file
135 # tolower: returns the value in all lowercase
136 # toupper: returns the value in all uppercase
137 # ws_to_under: returns the value with any whitespace changed to underscores
138 _toint=$(shell printf "%d" $1)
139 _int-add2=$(shell expr $(call _toint,$1) + $(call _toint,$2))
140 int-add=$(if $(filter 1,$(words $1)),$(strip $1),$(call int-add,$(call _int-add2,$(word 1,$1),$(word 2,$1)) $(wordlist 3,$(words $1),$1)))
141 int-subtract=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) - $(call _toint,$(word 2,$1))))
142 _int-multiply2=$(shell expr $(call _toint,$1) \* $(call _toint,$2))
143 int-multiply=$(if $(filter 1,$(words $1)),$(strip $1),$(call int-multiply,$(call _int-multiply2,$(word 1,$1),$(word 2,$1)) $(wordlist 3,$(words $1),$1)))
144 int-divide=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) / $(call _toint,$(word 2,$1))))
145 int-remainder=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) % $(call _toint,$(word 2,$1))))
146 int-shift-left=$(shell echo "$(call _toint,$(word 1, $1)) * (2 ^ $(call _toint,$(word 2, $1)))" | bc)
147 int-lt=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) \< $(call _toint,$(word 2,$1))))
148 int-gt=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) \> $(call _toint,$(word 2,$1))))
149 int-eq=$(if $(filter 1,$(words $1)),$(strip $1),$(shell expr $(call _toint,$(word 1,$1)) = $(call _toint,$(word 2,$1))))
150 int-align=$(shell A=$(call _toint,$1) B=$(call _toint,$2); expr $$A + \( \( $$B - \( $$A % $$B \) \) % $$B \) )
151 int-align-down=$(shell A=$(call _toint,$1) B=$(call _toint,$2); expr $$A - \( $$A % $$B \) )
152 file-size=$(strip $(shell cat $1 | wc -c))
153 tolower=$(shell echo '$1' | tr '[:upper:]' '[:lower:]')
154 toupper=$(shell echo '$1' | tr '[:lower:]' '[:upper:]')
155 ws_to_under=$(shell echo '$1' | tr ' \t' '_')
157 #######################################################################
158 # Helper functions for ramstage postprocess
163 # Returns all files and dirs below `dir` (recursively).
164 # files-below-dir,dir,files
165 files-below-dir=$(filter $(1)%,$(2))
167 # Returns all dirs below `dir` (recursively).
168 # dirs-below-dir,dir,files
169 dirs-below-dir=$(filter-out $(1),$(sort $(dir $(call files-below-dir,$(1),$(2)))))
171 # Returns all files directly in `dir` (non-recursively).
172 # files-in-dir,dir,files
173 files-in-dir=$(filter-out $(addsuffix %,$(call dirs-below-dir,$(1),$(2))),$(call files-below-dir,$(1),$(2)))
175 #######################################################################
176 # reduce command line length by linking the objects of each
177 # directory into an intermediate file
178 ramstage-postprocess=$$(eval DEPENDENCIES+=$$(addsuffix .d,$$(basename $(1)))) \
179 $(foreach d,$(sort $(dir $(filter-out %.ld,$(1)))), \
180 $(eval $(d)ramstage.a: $(call files-in-dir,$(d),$(filter-out %.ld,$(1))); rm -f $$@ && $(AR_ramstage) rcsT $$@ $$^ ) \
181 $(eval ramstage-objs:=$(d)ramstage.a $(filter-out $(filter-out %.ld, $(call files-in-dir,$(d),$(1))),$(ramstage-objs))))
183 decompressor-generic-ccopts += -D__DECOMPRESSOR__
184 bootblock-generic-ccopts += -D__BOOTBLOCK__
185 romstage-generic-ccopts += -D__ROMSTAGE__
186 ramstage-generic-ccopts += -D__RAMSTAGE__
187 ifeq ($(CONFIG_COVERAGE),y)
188 ramstage-c-ccopts += -fprofile-arcs -ftest-coverage
191 ifneq ($(UPDATED_SUBMODULES),1)
192 # try to fetch non-optional submodules if the source is under git
193 forgetthis:=$(if $(GIT),$(shell git submodule update --init))
194 ifeq ($(CONFIG_USE_BLOBS),y)
195 # These items are necessary because each has update=none in .gitmodules. They are ignored
196 # until expressly requested and enabled with --checkout
197 forgetthis:=$(if $(GIT),$(shell git submodule update --init --checkout 3rdparty/blobs))
198 forgetthis:=$(if $(GIT),$(shell git submodule update --init --checkout 3rdparty/intel-microcode))
199 ifeq ($(CONFIG_FSP_USE_REPO),y)
200 forgetthis:=$(if $(GIT),$(shell git submodule update --init --checkout 3rdparty/fsp))
202 ifeq ($(CONFIG_USE_AMD_BLOBS),y)
203 forgetthis:=$(if $(GIT),$(shell git submodule update --init --checkout 3rdparty/amd_blobs))
205 ifeq ($(CONFIG_USE_QC_BLOBS),y)
206 forgetthis:=$(if $(GIT),$(shell git submodule update --init --checkout 3rdparty/qc_blobs))
209 UPDATED_SUBMODULES:=1
210 COREBOOT_EXPORTS += UPDATED_SUBMODULES
213 postcar-c-deps:=$$(OPTION_TABLE_H)
214 ramstage-c-deps:=$$(OPTION_TABLE_H)
215 romstage-c-deps:=$$(OPTION_TABLE_H)
216 verstage-c-deps:=$$(OPTION_TABLE_H)
217 bootblock-c-deps:=$$(OPTION_TABLE_H)
218 $(foreach type,ads adb, \
219 $(foreach stage,$(COREBOOT_STANDARD_STAGES), \
220 $(eval $(stage)-$(type)-deps := \
221 $(obj)/$(stage)/$(notdir $(KCONFIG_AUTOADS)) \
222 $(obj)/libgnat-$(ARCH-$(stage)-y)/libgnat.a)))
224 # Add handler to copy linker scripts
225 define generic-objs_ld_template_gen
226 de$(EMPTY)fine $(1)-objs_ld_template
227 $$(call src-to-obj,$1,$$(1).ld): $$(1).ld $(obj)/config.h $(obj)/fmap_config.h
228 @printf " CP $$$$(subst $$$$(obj)/,,$$$$(@))\n"
229 $$(CC_$(1)) -MMD $$(CPPFLAGS_$(1)) $$($(1)-ld-ccopts) $(PREPROCESS_ONLY) -include $(obj)/config.h -MT $$$$@ -o $$$$@ $$$$<
233 # Add handler to deal with archives
234 define generic-objs_a_template_gen
235 de$(EMPTY)fine $(1)-objs_a_template
236 $$(call src-to-obj,$1,$$(1).a): $$(1).a
237 @printf " AR $$$$(subst $$$$(obj)/,,$$$$(@))\n"
238 $$$$(AR_$(1)) rcsT $$$$@.tmp $$$$<
243 # Add handler to add no rules for manual files
244 define generic-objs_manual_template_gen
248 #######################################################################
249 # Add handler to compile ACPI's ASL
250 # arg1: base file name
251 # arg2: y or n for including in cbfs. defaults to y
253 # Empty resource templates were marked as a warning in IASL with the comment
254 # "This would appear to be worthless in real-world ASL code.", which is
255 # possibly true in many cases. In other cases it seems that an empty
256 # ResourceTemplate is the correct code.
257 # As it's valid ASL, disable the warning.
258 EMPTY_RESOURCE_TEMPLATE_WARNING = 3150
259 # Redundant offset remarks are not useful in any way and are masking useful
260 # ones that might indicate an issue so it is better to hide them.
261 REDUNDANT_OFFSET_REMARK = 2158
262 # Ignore _HID & _ADR coexisting in Intel Lynxpoint and Broadwell ASL code.
263 # See cb:38803 & cb:38802
264 # "Multiple types (Device object requires either a _HID or _ADR, but not both)"
265 MULTIPLE_TYPES_WARNING = 3073
267 IASL_WARNINGS_LIST = $(EMPTY_RESOURCE_TEMPLATE_WARNING) $(REDUNDANT_OFFSET_REMARK)
269 ifeq ($(CONFIG_SOUTHBRIDGE_INTEL_LYNXPOINT)$(CONFIG_SOC_INTEL_BROADWELL),y)
270 IASL_WARNINGS_LIST += $(MULTIPLE_TYPES_WARNING)
273 IGNORED_IASL_WARNINGS = $(addprefix -vw , $(IASL_WARNINGS_LIST))
276 $(CONFIG_CBFS_PREFIX)/$(1).aml-file = $(obj)/$(1).aml
277 $(CONFIG_CBFS_PREFIX)/$(1).aml-type = raw
278 $(CONFIG_CBFS_PREFIX)/$(1).aml-compression = none
279 cbfs-files-$(if $(2),$(2),y) += $(CONFIG_CBFS_PREFIX)/$(1).aml
280 -include $(obj)/$(1).d
281 $(obj)/$(1).aml: $(src)/mainboard/$(MAINBOARDDIR)/$(1).asl $(obj)/config.h
282 @printf " IASL $$(subst $(top)/,,$$(@))\n"
283 $(CC_ramstage) -x assembler-with-cpp -E -MMD -MT $$(@) $$(CPPFLAGS_ramstage) -D__ACPI__ -P -include $(src)/include/kconfig.h -I$(obj) -I$(src) -I$(src)/include -I$(src)/arch/$(ARCHDIR-$(ARCH-ramstage-y))/include -I$(src)/mainboard/$(MAINBOARDDIR) $$< -o $(obj)/$(1).asl
284 cd $$(dir $$@); $(IASL) $(IGNORED_IASL_WARNINGS) -we -p $$(notdir $$@) $(1).asl
285 echo " IASL "$(IASL_WARNINGS_LIST)" warning types were ignored!"
286 if ! $(IASL) -d $$@ 2>&1 | grep -Eq 'ACPI (Warning|Error)'; then \
287 echo " IASL $$@ disassembled correctly."; \
290 echo "Error: Could not correctly disassemble $$@"; \
296 #######################################################################
297 # Parse plaintext CMOS defaults into binary format
299 # arg2: binary file name
300 cbfs-files-processor-nvramtool= \
301 $(eval $(2): $(1) $(src)/mainboard/$(MAINBOARDDIR)/cmos.layout | $(objutil)/nvramtool/nvramtool ; \
302 printf " CREATE $(2) (from $(1))\n"; \
303 $(objutil)/nvramtool/nvramtool -y $(src)/mainboard/$(MAINBOARDDIR)/cmos.layout -D $(2).tmp -p $(1) && \
306 #######################################################################
307 # Link VSA binary to ELF-ish stage
309 # arg2: binary file name
310 cbfs-files-processor-vsa= \
311 $(eval $(2): $(1) ; \
312 printf " CREATE $(2) (from $(1))\n"; \
313 $(OBJCOPY_ramstage) --set-start 0x20 --adjust-vma 0x60000 -I binary -O elf32-i386 -B i386 $(1) $(2).tmp && \
314 $(LD_ramstage) -m elf_i386 -e 0x60020 --section-start .data=0x60000 $(2).tmp -o $(2))
316 #######################################################################
317 # Reduce a .config file to its minimal representation
320 define cbfs-files-processor-defconfig
321 $(eval $(2): $(1) $(obj)/build.h $(objutil)/kconfig/conf; \
322 +printf " CREATE $(2) (from $(1))\n"; \
323 printf "# This image was built using coreboot " > $(2).tmp && \
324 grep "\<COREBOOT_VERSION\>" $(obj)/build.h |cut -d\" -f2 >> $(2).tmp && \
325 $(MAKE) DOTCONFIG=$(1) DEFCONFIG=$(2).tmp2 savedefconfig && \
326 cat $(2).tmp2 >> $(2).tmp && \
328 \mv -f $(2).tmp $(2))
331 #######################################################################
332 # Compile a C file with a bare struct definition into binary
333 # arg1: C source file
335 cbfs-files-processor-struct= \
336 $(eval $(2): $(1) $(obj)/build.h $(KCONFIG_AUTOHEADER); \
337 printf " CC+STRIP $(1)\n"; \
338 $(CC_ramstage) -MMD $(CPPFLAGS_ramstage) $(CFLAGS_ramstage) $$(ramstage-c-ccopts) -include $(KCONFIG_AUTOHEADER) -MT $(2) -o $(2).tmp -c $(1) && \
339 $(OBJCOPY_ramstage) -O binary --set-section-flags .bss*=alloc,contents,load $(2).tmp $(2); \
341 $(eval DEPENDENCIES += $(2).d)
343 #######################################################################
344 # Add handler for arbitrary files in CBFS
345 $(call add-special-class,cbfs-files)
346 cbfs-files-handler= \
347 $(eval tmp-cbfs-method:=$(word 2, $(subst :, ,$($(2)-file)))) \
348 $(eval $(2)-file:=$(call strip_quotes,$(word 1, $(subst :, ,$($(2)-file))))) \
349 $(eval tmp-cbfs-file:= ) \
351 $(if $(wildcard $(1)$($(2)-file)), \
352 $(eval tmp-cbfs-file:= $(wildcard $(1)$($(2)-file))), \
353 $(eval tmp-cbfs-file:= $($(2)-file)))) \
354 $(if $(strip $($(2)-required)), \
355 $(if $(wildcard $(tmp-cbfs-file)),, \
356 $(info This build configuration requires $($(2)-required)) \
357 $(eval FAILBUILD:=1) \
359 $(if $(strip $($(2)-align)), \
360 $(if $(strip $($(2)-position)), \
361 $(info ERROR: It is not allowed to specify both alignment and position for $($(2)-file)) \
362 $(eval FAILBUILD:=1) \
364 $(if $(tmp-cbfs-method), \
365 $(eval tmp-old-cbfs-file:=$(tmp-cbfs-file)) \
366 $(eval tmp-cbfs-file:=$(shell mkdir -p $(obj)/mainboard/$(MAINBOARDDIR); mktemp $(obj)/mainboard/$(MAINBOARDDIR)/cbfs-file.XXXXXX).out) \
367 $(call cbfs-files-processor-$(tmp-cbfs-method),$(tmp-old-cbfs-file),$(tmp-cbfs-file))) \
368 $(if $(tmp-cbfs-file), \
369 $(eval cbfs-files += $(subst $(spc),*,$(tmp-cbfs-file)|$(2)|$($(2)-type)|$($(2)-compression)|$(strip $($(2)-position))|$($(2)-align)|$($(2)-options)))) \
370 $(eval $(2)-name:=) \
371 $(eval $(2)-type:=) \
372 $(eval $(2)-compression:=) \
373 $(eval $(2)-position:=) \
374 $(eval $(2)-required:=) \
375 $(eval $(2)-options:=) \
378 #######################################################################
379 # a variety of flags for our build
380 CBFS_COMPRESS_FLAG:=none
381 ifeq ($(CONFIG_COMPRESS_RAMSTAGE),y)
382 CBFS_COMPRESS_FLAG:=LZMA
385 CBFS_PAYLOAD_COMPRESS_FLAG:=none
386 ifeq ($(CONFIG_COMPRESSED_PAYLOAD_LZMA),y)
387 CBFS_PAYLOAD_COMPRESS_FLAG:=LZMA
389 ifeq ($(CONFIG_COMPRESSED_PAYLOAD_LZ4),y)
390 CBFS_PAYLOAD_COMPRESS_FLAG:=LZ4
393 CBFS_SECONDARY_PAYLOAD_COMPRESS_FLAG:=none
394 ifeq ($(CONFIG_COMPRESS_SECONDARY_PAYLOAD),y)
395 CBFS_SECONDARY_PAYLOAD_COMPRESS_FLAG:=LZMA
398 CBFS_PRERAM_COMPRESS_FLAG:=none
399 ifeq ($(CONFIG_COMPRESS_PRERAM_STAGES),y)
400 CBFS_PRERAM_COMPRESS_FLAG:=LZ4
403 ifneq ($(CONFIG_LOCALVERSION),"")
404 COREBOOT_EXTRA_VERSION := -$(call strip_quotes,$(CONFIG_LOCALVERSION))
405 COREBOOT_EXPORTS += COREBOOT_EXTRA_VERSION
408 CPPFLAGS_common := -Isrc -Isrc/include -Isrc/commonlib/include -Isrc/commonlib/bsd/include -I$(obj)
409 VBOOT_SOURCE ?= 3rdparty/vboot
410 CPPFLAGS_common += -I$(VBOOT_SOURCE)/firmware/include
411 CPPFLAGS_common += -include $(src)/include/kconfig.h
412 CPPFLAGS_common += -include $(src)/include/rules.h
413 CPPFLAGS_common += -include $(src)/commonlib/bsd/include/commonlib/bsd/compiler.h
414 CPPFLAGS_common += -I3rdparty
415 CPPFLAGS_common += -D__BUILD_DIR__=\"$(obj)\"
417 ifeq ($(BUILD_TIMELESS),1)
418 CPPFLAGS_common += -D__TIMELESS__
421 ifeq ($(CONFIG_PCI_OPTION_ROM_RUN_YABEL)$(CONFIG_PCI_OPTION_ROM_RUN_REALMODE),y)
422 CPPFLAGS_ramstage += -Isrc/device/oprom/include
425 CFLAGS_common += -pipe -g -nostdinc -std=gnu11
426 CFLAGS_common += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
427 CFLAGS_common += -Wwrite-strings -Wredundant-decls -Wno-trigraphs -Wimplicit-fallthrough
428 CFLAGS_common += -Wshadow -Wdate-time -Wtype-limits -Wvla
429 CFLAGS_common += -Wlogical-op -Wduplicated-cond -Wdangling-else
430 CFLAGS_common += -fno-common -ffreestanding -fno-builtin -fomit-frame-pointer
431 CFLAGS_common += -fstrict-aliasing -ffunction-sections -fdata-sections -fno-pie
432 ifeq ($(CONFIG_COMPILER_GCC),y)
433 # Don't add these GCC specific flags when running scan-build
434 ifeq ($(CCC_ANALYZER_OUTPUT_FORMAT),)
435 CFLAGS_common += -Wno-packed-not-aligned
436 CFLAGS_common += -fconserve-stack
437 CFLAGS_common += -Wnull-dereference -Wreturn-type
438 # cf. commit f69a99db (coreboot: x86: enable gc-sections)
439 CFLAGS_common += -Wno-unused-but-set-variable
443 ADAFLAGS_common += -gnatp
444 ADAFLAGS_common += -Wuninitialized -Wall -Werror
445 ADAFLAGS_common += -pipe -g -nostdinc
446 ADAFLAGS_common += -Wstrict-aliasing -Wshadow
447 ADAFLAGS_common += -fno-common -fomit-frame-pointer
448 ADAFLAGS_common += -ffunction-sections -fdata-sections
449 # Ada warning options:
451 # a Activate most optional warnings.
452 # .e Activate every optional warnings.
453 # e Treat warnings and style checks as errors.
455 # D Suppress warnings on implicit dereferences:
456 # As SPARK does not accept access types we have to map the
457 # dynamically chosen register locations to a static SPARK
460 # .H Suppress warnings on holes/gaps in records:
461 # We are modelling hardware here!
463 # H Suppress warnings on hiding:
464 # It's too annoying, you run out of ideas for identifiers fast.
466 # T Suppress warnings for tracking of deleted conditional code:
467 # We use static options to select code paths at compile time.
469 # U Suppress warnings on unused entities:
470 # Would have lots of warnings for unused register definitions,
471 # `withs` for debugging etc.
473 # .U Deactivate warnings on unordered enumeration types:
474 # As SPARK doesn't support `pragma Ordered` by now, we don't
477 # .W Suppress warnings on unnecessary Warnings Off pragmas:
478 # Things get really messy when you use different compiler
479 # versions, otherwise.
480 # .Y Disable information messages for why package spec needs body:
481 # Those messages are annoying. But don't forget to enable those,
482 # if you need the information.
483 ADAFLAGS_common += -gnatwa.eeD.HHTU.U.W.Y
484 # Disable style checks for now
485 ADAFLAGS_common += -gnatyN
487 LDFLAGS_common := --gc-sections -nostdlib -nostartfiles -static
489 # Workaround for RISC-V linker bug, merge back into above line when fixed.
490 # https://sourceware.org/bugzilla/show_bug.cgi?id=27180
491 ifneq ($(CONFIG_ARCH_RISCV),y)
492 LDFLAGS_common += --emit-relocs
495 ifeq ($(CONFIG_WARNINGS_ARE_ERRORS),y)
496 CFLAGS_common += -Werror
498 ifneq ($(GDB_DEBUG),)
500 ADAFLAGS_common += -Og
503 ADAFLAGS_common += -Os
506 ifeq ($(CONFIG_DEBUG_ADA_CODE),y)
507 ADAFLAGS_common += -gnata
510 additional-dirs := $(objutil)/cbfstool $(objutil)/ifdtool \
511 $(objutil)/options $(objutil)/amdfwtool \
512 $(objutil)/cbootimage
514 export $(COREBOOT_EXPORTS)
516 #######################################################################
517 # generate build support files
519 build_h := $(obj)/build.h
521 # We have to manually export variables that `genbuild_h.sh` uses
522 # when we call it through the `$(shell)` function. This is fragile
523 # but as variables newly added to `genbuild_h.sh` would just not
524 # work, we'd notice that instantly at least.
525 build_h_exports := BUILD_TIMELESS KERNELVERSION COREBOOT_EXTRA_VERSION
527 # Report new `build.ht` as dependency if `build.h` differs.
529 export $(foreach exp,$(build_h_exports),$(exp)="$($(exp))"); \
530 util/genbuild_h/genbuild_h.sh $(xcompile) \
531 >$(build_h)t 2>/dev/null; \
532 cmp -s $(build_h)t $(build_h) >/dev/null 2>&1 || echo $(build_h)t
534 $(build_h): $$(shell $$(build_h_check))
535 @printf " GEN build.h\n"
538 build-dirs $(objcbfs) $(objgenerated):
539 mkdir -p $(objcbfs) $(objgenerated)
542 @echo 'COREBOOT_VERSION: $(call strip_quotes,$(KERNELVERSION))' > $@.tmp
543 @echo 'MAINBOARD_VENDOR: $(call strip_quotes,$(CONFIG_MAINBOARD_VENDOR))' >> $@.tmp
544 @echo 'MAINBOARD_PART_NUMBER: $(call strip_quotes,$(CONFIG_MAINBOARD_PART_NUMBER))' >> $@.tmp
547 #######################################################################
549 CBFSTOOL:=$(objutil)/cbfstool/cbfstool
550 FMAPTOOL:=$(objutil)/cbfstool/fmaptool
551 RMODTOOL:=$(objutil)/cbfstool/rmodtool
552 IFWITOOL:=$(objutil)/cbfstool/ifwitool
553 IFITTOOL:=$(objutil)/cbfstool/ifittool
554 AMDCOMPRESS:=$(objutil)/cbfstool/amdcompress
556 $(obj)/cbfstool: $(CBFSTOOL)
559 $(obj)/fmaptool: $(FMAPTOOL)
562 $(obj)/rmodtool: $(RMODTOOL)
565 $(obj)/ifwitool: $(IFWITOOL)
568 $(obj)/ifittool: $(IFITTOOL)
571 $(obj)/amdcompress: $(AMDCOMPRESS)
574 _WINCHECK=$(shell uname -o 2> /dev/null)
576 ifeq ($(_WINCHECK),Msys)
577 STACK=-Wl,--stack,16384000
579 ifeq ($(_WINCHECK),Cygwin)
580 STACK=-Wl,--stack,16384000
583 BINCFG:=$(objutil)/bincfg/bincfg
585 IFDTOOL:=$(objutil)/ifdtool/ifdtool
587 AMDFWTOOL:=$(objutil)/amdfwtool/amdfwtool
589 APCB_EDIT_TOOL:=$(top)/util/apcb/apcb_edit.py
591 CBOOTIMAGE:=$(objutil)/cbootimage/cbootimage
593 FUTILITY?=$(objutil)/futility/futility
595 subdirs-y += util/nvidia
597 $(obj)/config.h: $(objutil)/kconfig/conf
599 #######################################################################
600 # needed objects that every mainboard uses
601 # Creation of these is architecture and mainboard independent
602 DEVICETREE_FILE := $(src)/mainboard/$(MAINBOARDDIR)/$(CONFIG_DEVICETREE)
604 SCONFIG_OPTIONS := --mainboard_devtree=$(DEVICETREE_FILE)
606 ifneq ($(CONFIG_OVERRIDE_DEVICETREE),)
607 OVERRIDE_DEVICETREE_FILE := $(src)/mainboard/$(MAINBOARDDIR)/$(CONFIG_OVERRIDE_DEVICETREE)
608 SCONFIG_OPTIONS += --override_devtree=$(OVERRIDE_DEVICETREE_FILE)
611 ifneq ($(CONFIG_CHIPSET_DEVICETREE),)
612 CHIPSET_DEVICETREE_FILE := $(src)/$(CONFIG_CHIPSET_DEVICETREE)
613 SCONFIG_OPTIONS += --chipset_devtree=$(CHIPSET_DEVICETREE_FILE)
616 DEVICETREE_STATIC_C := $(obj)/mainboard/$(MAINBOARDDIR)/static.c
617 SCONFIG_OPTIONS += --output_c=$(DEVICETREE_STATIC_C)
619 DEVICETREE_STATIC_H := $(obj)/static.h
620 SCONFIG_OPTIONS += --output_h=$(DEVICETREE_STATIC_H)
622 DEVICETREE_DEVICENAMES_H := $(obj)/static_devices.h
623 SCONFIG_OPTIONS += --output_d=$(DEVICETREE_DEVICENAMES_H)
625 DEVICETREE_FWCONFIG_H := $(obj)/static_fw_config.h
626 SCONFIG_OPTIONS += --output_f=$(DEVICETREE_FWCONFIG_H)
628 $(DEVICETREE_STATIC_C): $(DEVICETREE_FILE) $(OVERRIDE_DEVICETREE_FILE) $(CHIPSET_DEVICETREE_FILE) $(objutil)/sconfig/sconfig
629 @printf " SCONFIG $(subst $(src)/,,$(<))\n"
630 mkdir -p $(dir $(DEVICETREE_STATIC_C))
631 $(objutil)/sconfig/sconfig $(SCONFIG_OPTIONS)
633 ramstage-y+=$(DEVICETREE_STATIC_C)
634 romstage-y+=$(DEVICETREE_STATIC_C)
635 verstage-y+=$(DEVICETREE_STATIC_C)
636 bootblock-y+=$(DEVICETREE_STATIC_C)
637 postcar-y+=$(DEVICETREE_STATIC_C)
638 smm-y+=$(DEVICETREE_STATIC_C)
640 # Ensure static.c and static.h are created before any objects are compiled
641 ramstage-c-deps+=$(DEVICETREE_STATIC_C)
642 romstage-c-deps+=$(DEVICETREE_STATIC_C)
643 verstage-c-deps+=$(DEVICETREE_STATIC_C)
644 bootblock-c-deps+=$(DEVICETREE_STATIC_C)
645 postcar-c-deps+=$(DEVICETREE_STATIC_C)
646 smm-c-deps+=$(DEVICETREE_STATIC_C)
649 devicetree: $(DEVICETREE_STATIC_C)
651 ramstage-y += $(CONFIG_MEMLAYOUT_LD_FILE)
652 romstage-y += $(CONFIG_MEMLAYOUT_LD_FILE)
653 bootblock-y += $(CONFIG_MEMLAYOUT_LD_FILE)
654 verstage-y += $(CONFIG_MEMLAYOUT_LD_FILE)
655 postcar-y += $(CONFIG_MEMLAYOUT_LD_FILE)
656 decompressor-y += $(CONFIG_MEMLAYOUT_LD_FILE)
658 #######################################################################
661 rm -rf coreboot-builds
663 clean-for-update-target: clean-payloads
664 rm -f $(obj)/ramstage?* $(obj)/coreboot.romstage $(obj)/coreboot.pre* $(obj)/coreboot.bootblock $(obj)/coreboot.a
665 rm -rf $(obj)/bootblock?* $(obj)/romstage?* $(obj)/location.*
666 rm -f $(obj)/option_table.* $(obj)/crt0.S $(obj)/ldscript
667 rm -f $(obj)/mainboard/$(MAINBOARDDIR)/static.c $(obj)/mainboard/$(MAINBOARDDIR)/config.py $(obj)/mainboard/$(MAINBOARDDIR)/static.dot
668 rm -f $(obj)/mainboard/$(MAINBOARDDIR)/crt0.s $(obj)/mainboard/$(MAINBOARDDIR)/crt0.disasm
669 rm -f $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc
670 rm -f $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.* $(obj)/dsdt.*
671 rm -f $(obj)/cpu/x86/smm/smm_bin.c $(obj)/cpu/x86/smm/smm.* $(obj)/cpu/x86/smm/smm
674 rm -f $(obj)/coreboot*
676 #######################################################################
677 # Development utilities
680 @echo ldscripts=$(ldscripts)
683 dongle.py -c /dev/term/1 $(obj)/coreboot.rom EOF
686 grep "^# DESCR:" util/lint/check-style | sed "s,.*DESCR: *,,"
688 util/lint/check-style
692 util/gitconfig/gitconfig.sh "$(MAKE)"
694 install-git-commit-clangfmt:
695 cp util/scripts/prepare-commit-msg.clang-format .git/hooks/prepare-commit-msg
697 include util/crossgcc/Makefile.inc
700 tools: $(objutil)/kconfig/conf $(objutil)/kconfig/toada $(CBFSTOOL) $(objutil)/cbfstool/cbfs-compression-tool $(FMAPTOOL) $(RMODTOOL) $(IFWITOOL) $(objutil)/nvramtool/nvramtool $(objutil)/sconfig/sconfig $(IFDTOOL) $(CBOOTIMAGE) $(AMDFWTOOL) $(AMDCOMPRESS) $(FUTILITY) $(BINCFG) $(IFITTOOL) $(objutil)/supermicro/smcbiosinfo
702 ###########################################################################
703 # Common recipes for all stages
704 ###########################################################################
706 # loadaddr can determine the load address of a stage, which may be needed for
707 # platform-specific image headers (only works *after* the stage has been built)
708 loadaddr = $(shell $(OBJDUMP_$(1)) -p $(objcbfs)/$(1).debug | \
709 sed -ne '/LOAD/s/^.*vaddr 0x\([0-9a-fA-F]\{8\}\).*$$/0x\1/p')
711 # find-substr is required for stages like romstage_null and romstage_xip to
712 # eliminate the _* part of the string
713 find-substr = $(word 1,$(subst _, ,$(1)))
715 # find-class is used to identify the class from the name of the stage
716 # The input to this macro can be something like romstage.x or romstage.x.y
717 # find-class recursively strips off the suffixes to extract the exact class name
718 # e.g.: if romstage.x is provided to find-class, it will remove .x and return romstage
719 # if romstage.x.y is provided, it will first remove .y, call find-class with romstage.x
720 # and remove .x the next time and finally return romstage
721 find-class = $(if $(filter $(1),$(basename $(1))),$(if $(CC_$(1)), $(1), $(call find-substr,$(1))),$(call find-class,$(basename $(1))))
723 # Bootblocks are not CBFS stages. coreboot is currently expecting the bss to
724 # be cleared by the loader of the stage. For ARM SoCs that means one needs to
725 # include the bss section in the binary so the BootROM clears the bss on
726 # loading of the bootblock stage. Achieve this by marking the bss section
727 # loadable,allocatable, and data. Do the same for the .data section in case
728 # the linker marked it NOBITS automatically because there are only zeroes in it.
729 preserve-bss-flags := --set-section-flags .bss=load,alloc,data --set-section-flags .data=load,alloc,data
731 # For Intel TXT files in the CBFS needs to be marked as 'Initial Boot Block'.
732 # As CBFS attributes aren't cheap, only mark them if TXT is enabled.
733 ifeq ($(CONFIG_INTEL_TXT),y)
743 ifeq ($(CONFIG_COMPRESS_BOOTBLOCK),y)
745 $(objcbfs)/bootblock.lz4: $(objcbfs)/bootblock.elf $(objutil)/cbfstool/cbfs-compression-tool
746 @printf " LZ4 $(subst $(obj)/,,$(@))\n"
747 $(OBJCOPY_bootblock) $(preserve-bss-flags) $< $@.tmp
748 $(OBJCOPY_bootblock) -O binary $@.tmp
749 $(objutil)/cbfstool/cbfs-compression-tool rawcompress $@.tmp $@.tmp2 lz4
753 # Put assembled decompressor+bootblock into bootblock.raw.elf so that SoC
754 # Makefiles wrapping the bootblock in a header can always key off the same file.
755 $(objcbfs)/bootblock.raw.elf: $(objcbfs)/decompressor.elf
756 @printf " OBJCOPY $(notdir $(@))\n"
757 $(OBJCOPY_bootblock) $(preserve-bss-flags) $< $@
759 else # CONFIG_COMPRESS_BOOTBLOCK
761 $(objcbfs)/bootblock.raw.elf: $(objcbfs)/bootblock.elf
762 @printf " OBJCOPY $(notdir $(@))\n"
763 $(OBJCOPY_bootblock) $(preserve-bss-flags) $< $@
765 endif # CONFIG_COMPRESS_BOOTBLOCK
767 $(objcbfs)/bootblock.raw.bin: $(objcbfs)/bootblock.raw.elf
768 @printf " OBJCOPY $(notdir $(@))\n"
769 $(OBJCOPY_bootblock) -O binary $< $@
771 ifneq ($(CONFIG_HAVE_BOOTBLOCK),y)
772 $(objcbfs)/bootblock.bin: $(objcbfs)
773 dd if=/dev/zero of=$@ bs=64 count=1
776 $(objcbfs)/%.bin: $(objcbfs)/%.raw.bin
779 $(objcbfs)/%.elf: $(objcbfs)/%.debug
780 $(eval class := $(call find-class,$(@F)))
781 @printf " OBJCOPY $(subst $(obj)/,,$(@))\n"
783 $(NM_$(class)) -n $@.tmp | sort > $(basename $@).map
784 $(OBJCOPY_$(class)) --strip-debug $@.tmp
785 $(OBJCOPY_$(class)) --add-gnu-debuglink=$< $@.tmp
789 ###########################################################################
790 # Build the final rom image
791 ###########################################################################
793 # extract_nth - Return a subsection of the $file string
795 # the input string looks like this:
796 # ./build/cbfs/fallback/romstage.elf|fallback/romstage|stage|none||64|--xip*-S*.car.data*-P*0x10000
799 # 1 - Path and name of file [FILENAME: Added to cbfs-files-y list variable]
800 # 2 - Name of file in cbfs [$(FILENAME)-file]
801 # 3 - File type: [$(FILENAME)-type]
802 # bootblock, cbfs header, stage, payload, optionrom, bootsplash, raw, vsa,
803 # mbi, microcode, fsp, mrc, cmos_default, cmos_layout, spd, mrc_cache,
804 # mma, efi, deleted, null
805 # 4 - Compression type [$(FILENAME)-compression]
807 # 5 - Base address [$(FILANAME)-position]
808 # 6 - Alignment [$(FILENAME)-align]
809 # 7 - cbfstool flags [$(FILENAME)-options]
812 # $(1) = Section to extract
813 # $(2) = Input string
816 # 1) replace all '|' characters with the sequence '- -' within the full string, prepended and appended with the character '-'
817 # 2) extract the specified section from the string - this gets us the section surrounded by '-' characters
818 # 3) remove the leading and trailing '-' characters
819 # 4) replace all '*' characters with spaces
820 extract_nth=$(subst *,$(spc),$(patsubst -%-,%,$(word $(1), $(subst |,- -,-$(2)-))))
822 # regions-for-file - Returns a cbfstool regions parameter
823 # $(call regions-for-file,$(filename))
824 # returns "REGION1,REGION2,..."
826 # This is the default implementation. When using a boot strategy employing
827 # multiple CBFSes in fmap regions, override it.
828 regions-for-file ?= COREBOOT
830 ifeq ($(CONFIG_CBFS_AUTOGEN_ATTRIBUTES),y)
831 cbfs-autogen-attributes=-g
834 # cbfs-add-cmd-for-region
835 # $(call cbfs-add-cmd-for-region,file in extract_nth format,region name)
837 # CBFSTOOL_ADD_CMD_OPTIONS can be used by arch/SoC/mainboard to supply
838 # add commands with any additional arguments for cbfstool.
839 # Example: --ext-win-base <base> --ext-win-size <size>
840 define cbfs-add-cmd-for-region
842 add$(if $(filter stage,$(call extract_nth,3,$(1))),-stage)$(if \
843 $(filter payload,$(call extract_nth,3,$(1))),-payload)$(if \
844 $(filter flat-binary,$(call extract_nth,3,$(1))),-flat-binary) \
845 -f $(call extract_nth,1,$(1)) \
846 -n $(call extract_nth,2,$(1)) \
847 $(if $(filter-out flat-binary payload stage,$(call \
848 extract_nth,3,$(1))),-t $(call extract_nth,3,$(1))) \
849 $(if $(call extract_nth,4,$(1)),-c $(call extract_nth,4,$(1))) \
850 $(cbfs-autogen-attributes) \
852 $(if $(call extract_nth,6,$(1)),-a $(call extract_nth,6,$(file)), \
853 $(if $(call extract_nth,5,$(file)),-b $(call extract_nth,5,$(file)))) \
854 $(call extract_nth,7,$(1)) \
855 $(CBFSTOOL_ADD_CMD_OPTIONS)
858 # Empty line before endef is necessary so cbfs-add-cmd-for-region ends in a
862 # $(call cbfs-add-cmd,
863 # file in extract_nth format,
865 # non-empty if file removal requested)
867 printf " CBFS $(call extract_nth,2,$(1))\n"
868 $(if $(3),-$(CBFSTOOL) $@.tmp remove -n $(call extract_nth,2,$(file)) 2>/dev/null)
869 $(call cbfs-add-cmd-for-region,$(1),$(2))
872 # list of files to add (using their file system names, not CBFS names),
873 # for dependencies etc.
874 prebuilt-files = $(foreach file,$(cbfs-files), $(call extract_nth,1,$(file)))
877 # returns full list of fmap regions that we add files to
878 all-regions = $(sort $(subst $(comma),$(spc), \
879 $(foreach file,$(cbfs-files), \
880 $(call regions-for-file,$(call extract_nth,2,$(file))))))
882 # $(call all-files-in-region,region name)
883 # returns elements in $(cbfs-files) that end up in that region, in the order
884 # they appear in $(cbfs-files)
885 all-files-in-region = $(foreach file,$(cbfs-files), \
886 $(if $(filter $(1), \
887 $(subst $(comma),$(spc),$(call regions-for-file,$(call extract_nth,2,$(file))))), \
890 # $(call update-file-for-region,file string from $(cbfs-files),region name)
891 # Update position and alignment according to overrides for region
892 # Doesn't check for invalid configurations (eg. resetting neither or both
893 # position and align)
894 # Returns the updated file string
895 update-file-for-region = \
896 $(subst $(spc),*,$(call extract_nth,1,$(1))|$(call extract_nth,2,$(1))|$(call extract_nth,3,$(1))|$(call extract_nth,4,$(1))|$($(call extract_nth,2,$(1))-$(2)-position)|$($(call extract_nth,2,$(1))-$(2)-align)|$(call extract_nth,7,$(1)))
898 # $(call placed-files-in-region,region name)
899 # like all-files-in-region, but updates the files to contain region overrides
900 # to position or alignment.
901 placed-files-in-region = $(foreach file,$(call all-files-in-region,$(1)), \
902 $(if $($(call extract_nth,2,$(file))-$(1)-position), \
903 $(if $($(call extract_nth,2,$(file))-$(1)-align), \
904 $(error It is not allowed to specify both alignment and position for $(call extract_nth,2,$(file))-$(1))) \
905 $(call update-file-for-region,$(file),$(1)), \
906 $(if $($(call extract_nth,2,$(file))-$(1)-align), \
907 $(call update-file-for-region,$(file),$(1)), \
910 # $(call sort-files,subset of $(cbfs-files))
911 # reorders the files in the given set to list files at fixed positions first,
912 # followed by aligned files and finally those with no constraints.
914 $(eval _tmp_fixed:=) \
915 $(eval _tmp_aligned:=) \
916 $(eval _tmp_regular:=) \
917 $(foreach file,$(1), \
918 $(if $(call extract_nth,5,$(file)),\
919 $(eval _tmp_fixed += $(file)), \
920 $(if $(call extract_nth,6,$(file)), \
921 $(eval _tmp_aligned += $(file)), \
922 $(eval _tmp_regular += $(file))))) \
923 $(_tmp_fixed) $(_tmp_aligned) $(_tmp_regular)
925 # command list to add files to CBFS
926 prebuild-files = $(foreach region,$(all-regions), \
928 $(call sort-files,$(call placed-files-in-region,$(region))), \
929 $(call cbfs-add-cmd,$(file),$(region),$(CONFIG_UPDATE_IMAGE))))
931 ifeq ($(CONFIG_FMDFILE),)
932 # For a description of the flash layout described by these variables, check
933 # the $(DEFAULT_FLASHMAP) .fmd files.
934 ifeq ($(CONFIG_ARCH_X86),y)
935 DEFAULT_FLASHMAP:=$(top)/util/cbfstool/default-x86.fmd
937 FMAP_ROM_ADDR := $(call int-subtract, 0x100000000 $(CONFIG_ROM_SIZE))
938 FMAP_ROM_SIZE := $(CONFIG_ROM_SIZE)
939 # entire "BIOS" region (everything directly of concern to the host system)
940 # relative to ROM_BASE
941 FMAP_BIOS_BASE := $(call int-align, $(call int-subtract, $(CONFIG_ROM_SIZE) $(CONFIG_CBFS_SIZE)), 0x10000)
942 FMAP_BIOS_SIZE := $(call int-align-down, $(shell echo $(CONFIG_CBFS_SIZE) | tr A-F a-f), 0x10000)
943 # position and size of flashmap, relative to BIOS_BASE
946 # X86 CONSOLE FMAP region
948 # position, size and entry line of CONSOLE relative to BIOS_BASE, if enabled
950 FMAP_CURRENT_BASE := 0
952 ifeq ($(CONFIG_CONSOLE_SPI_FLASH),y)
953 FMAP_CONSOLE_BASE := $(FMAP_CURRENT_BASE)
954 FMAP_CONSOLE_SIZE := $(CONFIG_CONSOLE_SPI_FLASH_BUFFER_SIZE)
955 FMAP_CONSOLE_ENTRY := CONSOLE@$(FMAP_CONSOLE_BASE) $(FMAP_CONSOLE_SIZE)
956 FMAP_CURRENT_BASE := $(call int-add, $(FMAP_CONSOLE_BASE) $(FMAP_CONSOLE_SIZE))
958 FMAP_CONSOLE_ENTRY :=
961 ifeq ($(CONFIG_CACHE_MRC_SETTINGS),y)
962 FMAP_MRC_CACHE_BASE := $(call int-align, $(FMAP_CURRENT_BASE), 0x10000)
963 FMAP_MRC_CACHE_SIZE := $(CONFIG_MRC_SETTINGS_CACHE_SIZE)
964 FMAP_MRC_CACHE_ENTRY := RW_MRC_CACHE@$(FMAP_MRC_CACHE_BASE) $(FMAP_MRC_CACHE_SIZE)
965 FMAP_CURRENT_BASE := $(call int-add, $(FMAP_MRC_CACHE_BASE) $(FMAP_MRC_CACHE_SIZE))
967 FMAP_MRC_CACHE_ENTRY :=
970 ifeq ($(CONFIG_SMMSTORE),y)
971 FMAP_SMMSTORE_BASE := $(call int-align, $(FMAP_CURRENT_BASE), 0x10000)
972 FMAP_SMMSTORE_SIZE := $(CONFIG_SMMSTORE_SIZE)
973 FMAP_SMMSTORE_ENTRY := SMMSTORE@$(FMAP_SMMSTORE_BASE) $(FMAP_SMMSTORE_SIZE)
974 FMAP_CURRENT_BASE := $(call int-add, $(FMAP_SMMSTORE_BASE) $(FMAP_SMMSTORE_SIZE))
976 FMAP_SMMSTORE_ENTRY :=
979 ifeq ($(CONFIG_SPD_CACHE_IN_FMAP),y)
980 FMAP_SPD_CACHE_BASE := $(call int-align, $(FMAP_CURRENT_BASE), 0x4000)
981 FMAP_SPD_CACHE_SIZE := $(call int-multiply, $(CONFIG_DIMM_MAX) $(CONFIG_DIMM_SPD_SIZE))
982 FMAP_SPD_CACHE_SIZE := $(call int-align, $(FMAP_SPD_CACHE_SIZE), 0x1000)
983 FMAP_SPD_CACHE_ENTRY := $(CONFIG_SPD_CACHE_FMAP_NAME)@$(FMAP_SPD_CACHE_BASE) $(FMAP_SPD_CACHE_SIZE)
984 FMAP_CURRENT_BASE := $(call int-add, $(FMAP_SPD_CACHE_BASE) $(FMAP_SPD_CACHE_SIZE))
986 FMAP_SPD_CACHE_ENTRY :=
989 ifeq ($(CONFIG_VPD),y)
990 FMAP_VPD_BASE := $(call int-align, $(FMAP_CURRENT_BASE), 0x4000)
991 FMAP_VPD_SIZE := $(CONFIG_VPD_FMAP_SIZE)
992 FMAP_VPD_ENTRY := $(CONFIG_VPD_FMAP_NAME)@$(FMAP_VPD_BASE) $(FMAP_VPD_SIZE)
993 FMAP_CURRENT_BASE := $(call int-add, $(FMAP_VPD_BASE) $(FMAP_VPD_SIZE))
1003 FMAP_FMAP_BASE := $(FMAP_CURRENT_BASE)
1004 FMAP_FMAP_SIZE := 0x200
1007 # X86 COREBOOT default cbfs FMAP region
1009 # position and size of CBFS, relative to BIOS_BASE
1010 FMAP_CBFS_BASE := $(call int-add, $(FMAP_FMAP_BASE) $(FMAP_FMAP_SIZE))
1011 FMAP_CBFS_SIZE := $(call int-subtract, $(FMAP_BIOS_SIZE) $(FMAP_CBFS_BASE))
1013 else # ifeq ($(CONFIG_ARCH_X86),y)
1015 DEFAULT_FLASHMAP:=$(top)/util/cbfstool/default.fmd
1018 FMAP_ROM_SIZE := $(CONFIG_ROM_SIZE)
1019 # entire "BIOS" region (everything directly of concern to the host system)
1020 # relative to ROM_BASE
1022 FMAP_BIOS_SIZE := $(CONFIG_CBFS_SIZE)
1023 # position and size of flashmap, relative to BIOS_BASE
1024 FMAP_FMAP_BASE := 0x20000
1025 FMAP_FMAP_SIZE := 0x200
1027 FMAP_CURRENT_BASE := $(call int-add, $(FMAP_FMAP_BASE) $(FMAP_FMAP_SIZE))
1030 # NON-X86 CONSOLE FMAP region
1032 # position, size and entry line of CONSOLE relative to BIOS_BASE, if enabled
1033 ifeq ($(CONFIG_CONSOLE_SPI_FLASH),y)
1034 FMAP_CONSOLE_BASE := $(FMAP_CURRENT_BASE)
1035 FMAP_CONSOLE_SIZE := $(CONFIG_CONSOLE_SPI_FLASH_BUFFER_SIZE)
1036 FMAP_CONSOLE_ENTRY := CONSOLE@$(FMAP_CONSOLE_BASE) $(FMAP_CONSOLE_SIZE)
1037 FMAP_CURRENT_BASE := $(call int-add, $(FMAP_CONSOLE_BASE) $(FMAP_CONSOLE_SIZE))
1039 FMAP_CONSOLE_ENTRY :=
1043 # NON-X86 RW_MRC_CACHE FMAP region
1045 # position, size and entry line of MRC_CACHE relative to BIOS_BASE, if enabled
1046 ifeq ($(CONFIG_CACHE_MRC_SETTINGS),y)
1047 FMAP_MRC_CACHE_BASE := $(call int-align, $(FMAP_CURRENT_BASE), 0x10000)
1048 FMAP_MRC_CACHE_SIZE := $(CONFIG_MRC_SETTINGS_CACHE_SIZE)
1049 FMAP_MRC_CACHE_ENTRY := RW_MRC_CACHE@$(FMAP_MRC_CACHE_BASE) $(FMAP_MRC_CACHE_SIZE)
1050 FMAP_CURRENT_BASE := $(call int-add, $(FMAP_MRC_CACHE_BASE) $(FMAP_MRC_CACHE_SIZE))
1052 FMAP_MRC_CACHE_ENTRY :=
1056 # NON-X86 COREBOOT default cbfs FMAP region
1058 # position and size of CBFS, relative to BIOS_BASE
1059 FMAP_CBFS_BASE := $(FMAP_CURRENT_BASE)
1060 FMAP_CBFS_SIZE := $(call int-subtract,$(FMAP_BIOS_SIZE) $(FMAP_CBFS_BASE))
1062 endif # ifeq ($(CONFIG_ARCH_X86),y)
1064 $(obj)/fmap.fmd: $(top)/Makefile.inc $(DEFAULT_FLASHMAP) $(obj)/config.h
1065 sed -e "s,##ROM_BASE##,$(FMAP_ROM_ADDR)," \
1066 -e "s,##ROM_SIZE##,$(FMAP_ROM_SIZE)," \
1067 -e "s,##BIOS_BASE##,$(FMAP_BIOS_BASE)," \
1068 -e "s,##BIOS_SIZE##,$(FMAP_BIOS_SIZE)," \
1069 -e "s,##FMAP_BASE##,$(FMAP_FMAP_BASE)," \
1070 -e "s,##FMAP_SIZE##,$(FMAP_FMAP_SIZE)," \
1071 -e "s,##CONSOLE_ENTRY##,$(FMAP_CONSOLE_ENTRY)," \
1072 -e "s,##MRC_CACHE_ENTRY##,$(FMAP_MRC_CACHE_ENTRY)," \
1073 -e "s,##SMMSTORE_ENTRY##,$(FMAP_SMMSTORE_ENTRY)," \
1074 -e "s,##SPD_CACHE_ENTRY##,$(FMAP_SPD_CACHE_ENTRY)," \
1075 -e "s,##VPD_ENTRY##,$(FMAP_VPD_ENTRY)," \
1076 -e "s,##CBFS_BASE##,$(FMAP_CBFS_BASE)," \
1077 -e "s,##CBFS_SIZE##,$(FMAP_CBFS_SIZE)," \
1078 $(DEFAULT_FLASHMAP) > $@.tmp
1080 else # ifeq ($(CONFIG_FMDFILE),)
1081 $(obj)/fmap.fmd: $(CONFIG_FMDFILE) $(obj)/config.h
1082 $(HOSTCC) $(PREPROCESS_ONLY) -include $(obj)/config.h $< -o $@.pre
1084 endif # ifeq ($(CONFIG_FMDFILE),)
1086 # generated at the same time as fmap.fmap
1087 $(obj)/fmap_config.h: $(obj)/fmap.fmap
1089 $(obj)/fmap.desc: $(obj)/fmap.fmap
1092 $(obj)/fmap.fmap: $(obj)/fmap.fmd $(FMAPTOOL)
1093 echo " FMAP $(FMAPTOOL) -h $(obj)/fmap_config.h $< $@"
1094 $(FMAPTOOL) -h $(obj)/fmap_config.h -R $(obj)/fmap.desc $< $@
1096 ifeq ($(CONFIG_INTEL_ADD_TOP_SWAP_BOOTBLOCK),y)
1097 TS_OPTIONS := -j $(CONFIG_INTEL_TOP_SWAP_BOOTBLOCK_SIZE)
1100 ifneq ($(CONFIG_UPDATE_IMAGE),y)
1101 $(obj)/coreboot.pre: $(objcbfs)/bootblock.bin $$(prebuilt-files) $(CBFSTOOL) $(IFITTOOL) $$(cpu_ucode_cbfs_file) $(obj)/fmap.fmap $(obj)/fmap.desc
1102 $(CBFSTOOL) $@.tmp create -M $(obj)/fmap.fmap -r $(shell cat $(obj)/fmap.desc)
1103 ifeq ($(CONFIG_ARCH_X86),y)
1104 $(CBFSTOOL) $@.tmp add \
1105 -f $(objcbfs)/bootblock.bin \
1109 -b -$(call file-size,$(objcbfs)/bootblock.bin) $(cbfs-autogen-attributes) \
1111 $(CBFSTOOL_ADD_CMD_OPTIONS)
1112 else # ifeq ($(CONFIG_ARCH_X86),y)
1113 $(CBFSTOOL) $@.tmp write -u \
1115 -f $(objcbfs)/bootblock.bin
1116 # make space for the CBFS master header pointer. "ptr_" is just
1117 # arbitrary 4 bytes that will be overwritten by add-master-header.
1118 printf "ptr_" > $@.tmp.2
1119 $(CBFSTOOL) $@.tmp add \
1121 -n "header pointer" \
1124 $(CBFSTOOL_ADD_CMD_OPTIONS)
1126 endif # ifeq ($(CONFIG_ARCH_X86),y)
1127 $(CBFSTOOL) $@.tmp add-master-header $(TS_OPTIONS) $(CBFSTOOL_ADD_CMD_OPTIONS)
1128 $(prebuild-files) true
1130 else # ifneq ($(CONFIG_UPDATE_IMAGE),y)
1131 .PHONY: $(obj)/coreboot.pre
1132 $(obj)/coreboot.pre: $$(prebuilt-files) $(CBFSTOOL)
1133 mv $(obj)/coreboot.rom $@.tmp || \
1134 (echo "Error: You have UPDATE_IMAGE set in Kconfig, but have no existing image to update." && \
1135 echo "Exiting." && \
1137 $(prebuild-files) true
1139 endif # ifneq ($(CONFIG_UPDATE_IMAGE),y)
1141 ifeq ($(CONFIG_HAVE_REFCODE_BLOB),y)
1142 REFCODE_BLOB=$(obj)/refcode.rmod
1143 $(REFCODE_BLOB): $(RMODTOOL)
1144 $(RMODTOOL) -i $(CONFIG_REFCODE_BLOB_FILE) -o $@
1147 ifeq ($(CONFIG_HAVE_RAMSTAGE),y)
1148 RAMSTAGE=$(objcbfs)/ramstage.elf
1153 add_intermediate = \
1154 $(1): $(obj)/coreboot.pre $(2) | $(INTERMEDIATE) \
1155 $(eval INTERMEDIATE+=$(1)) $(eval PHONY+=$(1))
1157 $(obj)/coreboot.rom: $(obj)/coreboot.pre $(RAMSTAGE) $(CBFSTOOL) $$(INTERMEDIATE)
1158 @printf " CBFS $(subst $(obj)/,,$(@))\n"
1159 # The full ROM may be larger than the CBFS part, so create an empty
1160 # file (filled with \377 = 0xff) and copy the CBFS image over it.
1161 dd if=/dev/zero bs=$(call _toint,$(CONFIG_ROM_SIZE)) count=1 2> /dev/null | tr '\000' '\377' > $@.tmp
1162 dd if=$(obj)/coreboot.pre of=$@.tmp bs=8192 conv=notrunc 2> /dev/null
1163 ifeq ($(CONFIG_CPU_INTEL_FIRMWARE_INTERFACE_TABLE),y)
1164 # Print final FIT table
1165 $(IFITTOOL) -f $@.tmp -D -r COREBOOT
1166 # Print final TS BOOTBLOCK FIT table
1167 ifeq ($(CONFIG_INTEL_ADD_TOP_SWAP_BOOTBLOCK),y)
1168 @printf " TOP SWAP FIT table\n"
1169 $(IFITTOOL) -f $@.tmp -D $(TS_OPTIONS) -r COREBOOT
1170 endif # CONFIG_INTEL_ADD_TOP_SWAP_BOOTBLOCK
1171 endif # CONFIG_CPU_INTEL_FIRMWARE_INTERFACE_TABLE
1173 @printf " CBFSLAYOUT $(subst $(obj)/,,$(@))\n\n"
1174 $(CBFSTOOL) $@ layout
1175 @printf " CBFSPRINT $(subst $(obj)/,,$(@))\n\n"
1176 $(CBFSTOOL) $@ print -r $(subst $(spc),$(comma),$(all-regions))
1178 cbfs-files-y += $(CONFIG_CBFS_PREFIX)/romstage
1179 $(CONFIG_CBFS_PREFIX)/romstage-file := $(objcbfs)/romstage.elf
1180 $(CONFIG_CBFS_PREFIX)/romstage-type := stage
1181 $(CONFIG_CBFS_PREFIX)/romstage-compression := $(CBFS_PRERAM_COMPRESS_FLAG)
1182 ifeq ($(CONFIG_ARCH_ROMSTAGE_ARM),y)
1183 $(CONFIG_CBFS_PREFIX)/romstage-options := -b 0
1185 ifeq ($(CONFIG_ARCH_ROMSTAGE_X86_32)$(CONFIG_ARCH_ROMSTAGE_X86_64),y)
1186 # Use a 64 byte alignment to provide a minimum alignment
1187 # requirement for the overall romstage. While the first object within
1188 # romstage could have a 4 byte minimum alignment that doesn't mean the linker
1189 # won't decide the entire section should be aligned to a larger value. In the
1190 # future cbfstool should add XIP files proper and honor the alignment
1191 # requirements of the program segment.
1193 # Make sure that segment for .car.data is ignored while adding romstage.
1194 $(CONFIG_CBFS_PREFIX)/romstage-align := 64
1195 $(CONFIG_CBFS_PREFIX)/romstage-options := -S ".car.data"
1197 # If CAR does not support execution of code, romstage on x86 is expected to be
1199 ifneq ($(CONFIG_NO_XIP_EARLY_STAGES),y)
1200 $(CONFIG_CBFS_PREFIX)/romstage-options += --xip
1202 # For efficient MTRR utilisation use natural alignment for romstage.
1203 ifeq ($(CONFIG_SETUP_XIP_CACHE),y)
1204 $(CONFIG_CBFS_PREFIX)/romstage-options += --pow2page
1205 endif # CONFIG_SETUP_XIP_CACHE
1207 endif # CONFIG_NO_XIP_EARLY_STAGES
1208 endif # CONFIG_ARCH_ROMSTAGE_X86_32 / CONFIG_ARCH_ROMSTAGE_X86_64
1209 ifeq ($(CONFIG_VBOOT_STARTS_IN_ROMSTAGE),y)
1210 $(CONFIG_CBFS_PREFIX)/romstage-options += $(TXTIBB)
1213 cbfs-files-$(CONFIG_HAVE_RAMSTAGE) += $(CONFIG_CBFS_PREFIX)/ramstage
1214 $(CONFIG_CBFS_PREFIX)/ramstage-file := $(RAMSTAGE)
1215 $(CONFIG_CBFS_PREFIX)/ramstage-type := stage
1216 $(CONFIG_CBFS_PREFIX)/ramstage-compression := $(CBFS_COMPRESS_FLAG)
1218 cbfs-files-$(CONFIG_HAVE_REFCODE_BLOB) += $(CONFIG_CBFS_PREFIX)/refcode
1219 $(CONFIG_CBFS_PREFIX)/refcode-file := $(REFCODE_BLOB)
1220 $(CONFIG_CBFS_PREFIX)/refcode-type := stage
1221 $(CONFIG_CBFS_PREFIX)/refcode-compression := $(CBFS_COMPRESS_FLAG)
1223 cbfs-files-$(CONFIG_SEABIOS_VGA_COREBOOT) += vgaroms/seavgabios.bin
1224 vgaroms/seavgabios.bin-file := $(CONFIG_PAYLOAD_VGABIOS_FILE)
1225 vgaroms/seavgabios.bin-type := raw
1227 cbfs-files-$(CONFIG_INCLUDE_CONFIG_FILE) += config
1228 config-file := $(DOTCONFIG):defconfig
1231 cbfs-files-$(CONFIG_INCLUDE_CONFIG_FILE) += revision
1232 revision-file := $(obj)/build.h
1233 revision-type := raw
1235 cbfs-files-y += build_info
1236 build_info-file := $(obj)/build_info
1237 build_info-type := raw
1239 BOOTSPLASH_SUFFIX=$(suffix $(call strip_quotes,$(CONFIG_BOOTSPLASH_FILE)))
1240 cbfs-files-$(CONFIG_BOOTSPLASH_IMAGE) += bootsplash$(BOOTSPLASH_SUFFIX)
1241 bootsplash$(BOOTSPLASH_SUFFIX)-file := $(call strip_quotes,$(CONFIG_BOOTSPLASH_FILE))
1242 bootsplash$(BOOTSPLASH_SUFFIX)-type := bootsplash
1244 # Ensure that no payload segment overlaps with memory regions used by ramstage
1245 # (not for x86 since it can relocate itself in that case)
1246 ifneq ($(CONFIG_ARCH_X86),y)
1247 check-ramstage-overlap-regions := ramstage
1248 check-ramstage-overlap-files :=
1249 ifneq ($(CONFIG_PAYLOAD_NONE),y)
1250 check-ramstage-overlap-files += $(CONFIG_CBFS_PREFIX)/payload
1253 # will output one or more lines of "<load address in hex> <memlen in decimal>"
1254 cbfs-get-segments-cmd = $(CBFSTOOL) $(obj)/coreboot.pre print -v | sed -n \
1255 '\%$(1)%,\%^[^ ]\{4\}%s% .*load: \(0x[0-9a-fA-F]*\),.*length: [0-9]*/\([0-9]*\).*%\1 \2%p'
1257 ramstage-symbol-addr-cmd = $(OBJDUMP_ramstage) -t $(objcbfs)/ramstage.elf | \
1258 sed -n '/ $(1)$$/s/^\([0-9a-fA-F]*\) .*/0x\1/p'
1260 $(call add_intermediate, check-ramstage-overlaps)
1261 programs=$$($(foreach file,$(check-ramstage-overlap-files), \
1262 $(call cbfs-get-segments-cmd,$(file)) ; )) ; \
1263 regions=$$($(foreach region,$(check-ramstage-overlap-regions), \
1265 $(call ramstage-symbol-addr-cmd,_$(region)) ; \
1266 $(call ramstage-symbol-addr-cmd,_e$(region)) ; )) ; \
1268 for x in $$programs; do \
1269 if [ -z $$pstart ]; then pstart=$$(($$x)) ; continue ; fi ; \
1270 pend=$$(($$pstart + $$x)) ; \
1271 rname= ; rstart= ; rend= ; \
1272 for y in $$regions ; do \
1273 if [ -z $$rname ]; then rname=$$y ; continue ; fi ; \
1274 if [ -z $$rstart ]; then rstart=$$(($$y)) ; continue ; fi ; \
1276 if [ $$pstart -lt $$rend -a $$rstart -lt $$pend ]; then \
1277 echo "ERROR: Ramstage region _$$rname overlapped by:" \
1278 $(check-ramstage-overlap-files) ; \
1281 rname= ; rstart= ; rend= ; \