3 # User definable variables for bootstrap:
4 # - BOOTSTRAP_SEARCH_PATH
6 # - BOOTSTRAP_MODULES_LIST
8 # - BOOTSTRAP_OMIT_UIMAGE
9 # - BOOTSTRAP_UIMAGE_COMPRESSION: set to none, gzip, or bzip2
10 # - BOOTSTRAP_CMDLINE: compiled-in command line, only used if no cmdline
11 # given via multi-boot boot loader (e.g. on arm)
13 DEFAULT_RELOC_arm := 0x01000000
14 DEFAULT_RELOC_x86 := 0x002d0000
15 DEFAULT_RELOC_amd64 := 0x002d0000
16 DEFAULT_RELOC_ppc32 := 0x002d0000
19 EXTRA_GENERAL_D_DEP = .redo-change-tracker
20 INCLUDE_MAKE_RULES = $(SRC_DIR)/*/Make.rules
21 BOOTSTRAP_LD_dep := $(SRC_DIR)/ldscript.inc
22 #REQUIRES_LIBS = libbsd-lite
24 include $(L4DIR)/mk/Makeconf
25 -include $(OBJ_DIR)/Makeconf.local
26 -include $(L4DIR)/conf/Makeconf.bootstrap
27 -include $(OBJ_BASE)/Makeconf.bootstrap
29 BOOTSTRAP_SEARCH_PATH ?= .
30 BOOTSTRAP_MODULES_LIST ?= $(SRC_DIR)/modules.list
31 BOOTSTRAP_MODULE_PATH_BINLIB ?= $(OBJ_BASE)/bin/$(SYSTEM)/$(BUILD_ABI):$(OBJ_BASE)/lib/$(SYSTEM)/$(BUILD_ABI):$(OBJ_BASE)/lib/$(SYSTEM)
32 BOOTSTRAP_ELF_NAME ?= bootstrap.elf
34 BOOTSTRAP_UIMAGE_COMPRESSION ?= none
36 ifeq ($(BUILD_ARCH),$(filter $(BUILD_ARCH),arm ppc32))
37 # ARM/PPC always uses single image mode
38 # when no entry is given we build the useless auto-build target
40 BOOTSTRAP_ELF_NAME := bootstrap.auto-build-useless.elf
42 ENTRY := auto-build-entry
46 PRIVATE_INCDIR = $(SRC_DIR) $(SRC_DIR)/ARCH-$(ARCH)
48 # special include directories only needed for <l4/sys/kernel.h>
49 PRIVATE_INCDIR_init_kip_v2.o = $(OBJ_BASE)/include/$(ARCH)/l4f \
50 $(DROPS_STDDIR)/include/$(ARCH)/l4f
51 PRIVATE_INCDIR_init_arm_kip.o = $(OBJ_BASE)/include/$(ARCH)/l4f \
52 $(DROPS_STDDIR)/include/$(ARCH)/l4f
54 TARGET := $(BOOTSTRAP_ELF_NAME)
55 TARGET_BIN = $(BOOTSTRAP_ELF_NAME)
58 ifeq ($(PLATFORM_TYPE),)
59 ifeq ($(X86_PLATFORM_TYPE),)
60 X86_PLATFORM_TYPE = pc
63 PLATFORM_TYPE-arm = $(ARM_PLATFORM_TYPE)
64 PLATFORM_TYPE-ppc32 = $(PPC_PLATFORM_TYPE)
65 PLATFORM_TYPE-x86 = $(X86_PLATFORM_TYPE)
66 PLATFORM_TYPE-amd64 = $(X86_PLATFORM_TYPE)
67 PLATFORM_TYPE = $(PLATFORM_TYPE-$(ARCH))
70 SUPPORT_CC_arm-sa1000 := support_sa1000.cc
71 SUPPORT_CC_arm-pxa := support_pxa.cc
72 SUPPORT_CC_arm-integrator := support_integrator.cc
73 SUPPORT_CC_arm-rv := support_rv.cc
74 SUPPORT_CC_arm-omap3evm := support_omap3evm.cc
75 SUPPORT_CC_arm-beagleboard:= support_beagleboard.cc
76 SUPPORT_CC_arm-tegra2 := support_tegra2.cc
77 SUPPORT_CC_arm-imx21 := support_imx.cc
78 SUPPORT_CC_arm-imx51 := support_imx.cc
79 SUPPORT_CC_arm-om := support_om.cc
80 DEFAULT_RELOC_arm-imx21 := 0x00200000 # because of blob
82 ifneq ($(DEFAULT_RELOC_arm-$(PLATFORM_TYPE)),)
83 DEFAULT_RELOC_arm := $(DEFAULT_RELOC_arm-$(PLATFORM_TYPE))
86 SUPPORT_CC_ppc32-mpc5200 := support_mpc5200.cc
88 SUPPORT_CC_x86-pc := support_x86_pc.cc
90 SUPPORT_CC_amd64-pc := support_x86_pc.cc
92 SRC_C += exec.c module.c
93 SRC_CC += region.cc startup.cc init_kip_v2.cc init_kip_v4.cc \
94 libc_support+.cc patch.cc
96 SRC_CC_x86 += ARCH-x86/reboot.cc
97 SRC_CC_amd64 += ARCH-x86/reboot.cc
98 SRC_C_x86 += base_critical.c ARCH-x86/serial.c
99 SRC_C_amd64 += base_critical.c ARCH-x86/serial.c
100 SRC_CC_arm += ARCH-arm/reboot.cc
101 SRC_CC_ppc32 += ARCH-ppc32/init_kip_v2-arch.cc \
103 SRC_CC += $(SUPPORT_CC_$(ARCH)-$(PLATFORM_TYPE))
104 SRC_S += ARCH-$(ARCH)/crt0.S
105 ASFLAGS_ARCH-arm/crt0.S += -march=armv6zk
107 OPTS = -g -Os $(CARCHFLAGS_$(ARCH)) $(CARCHFLAGS_$(ARCH)_$(CPU))
108 DEFINES += -DRAM_BASE=$(RAM_BASE)
109 DEFINES += -DCMDLINE="\"$(BOOTSTRAP_CMDLINE)\""
110 DEFINES += -DPLATFORM_TYPE=\"$(PLATFORM_TYPE)\"
111 DEFINES += -DPLATFORM_TYPE_$(PLATFORM_TYPE)
113 MOD_ADDR = 0x02000000
115 CPPFLAGS += $(BID_PKG_CONFIG_CFLAGS)
117 ifeq ($(SUPPORT_CC_$(ARCH)-$(PLATFORM_TYPE)),)
118 $(error A proper PLATFORM_TYPE must be set for a build.)
121 DRV_LIBS-ppc32 = -ldrivers_of
122 DRV_LIBS = -ldrivers_uart $(DRV_LIBS-$(ARCH))
124 LDSCRIPT = bootstrap.ld
127 vpath bootstrap.ld.in $(SRC_DIR)/ARCH-$(ARCH)
129 # can be overwritten by Makeconf.local
132 REALMODE_LOADING ?= 0
135 ifneq ($(REALMODE_LOADING)$(RML),00)
136 REALMODE_LOADING := 1
137 $(error Info: Default reloc needs to be 0x00100000)
138 # And if you have done so you probably need to relink sigma0 and/or moe
143 CPPFLAGS += -DSINGLE_SECTION
152 ENTRY_FN := $(shell echo "$(ENTRY)" | tr '[ ]' '[_]' )
154 # we need to re-do if some things change
155 # we do not need to track BOOTSTRACE_CMDLINE as it's only used in startup.cc
156 # and that is regenerated every time
157 REDO_TEXT_CMD = echo "$(ENTRY) '$(COMPRESS)' '$(RAM_SIZE_MB)' '$(PLATFORM_TYPE)'"
158 .redo-change-tracker: FORCE
159 $(VERBOSE)if test ! -r "$@" || \
160 ! $(REDO_TEXT_CMD) | cmp -s "$@"; then \
161 $(REDO_TEXT_CMD) > $@; \
166 INSTALL_TARGET = $(BOOTSTRAP_ELF_NAME) bootstrap_$(ENTRY_FN) bootstrap_$(ENTRY_FN).elf
168 bootstrap_$(ENTRY_FN).elf: $(BOOTSTRAP_ELF_NAME)
169 $(VERBOSE)$(LN) -f $< $@
171 bootstrap_$(ENTRY_FN).raw: bootstrap.raw
172 $(VERBOSE)$(LN) -f $< $@
174 bootstrap_$(ENTRY_FN).uimage: bootstrap.uimage
175 $(VERBOSE)$(LN) -f $< $@
177 ifeq ($(ARCH),$(filter $(ARCH),arm ppc32))
178 BID_POST_PROG_LINK_MSG_$(BOOTSTRAP_ELF_NAME) = echo -e " ==> Stripping $@"
179 BID_POST_PROG_LINK_$(BOOTSTRAP_ELF_NAME) = \
180 $(VERBOSE)LANG=C $(NM) -C $@ | \
181 LANG=C $(GREP) -q "V vtable for Platform_base" || \
182 { echo -e "\nERROR: Missing at least one platform instantiation.\n"; \
183 exit 1; } ; $(STRIP) $@
185 ifeq ($(BOOTSTRAP_OMIT_RAW),)
186 BOOTSTRAP_RAW := bootstrap.raw
187 INSTALL_TARGET += bootstrap.raw bootstrap_$(ENTRY_FN).raw
188 ifeq ($(BOOTSTRAP_OMIT_UIMAGE),)
189 ifneq ($(shell command -v $(MKIMAGE)),)
190 BOOTSTRAP_UIMAGE := bootstrap.uimage
191 INSTALL_TARGET += bootstrap.uimage bootstrap_$(ENTRY_FN).uimage
193 $(info mkimage($(MKIMAGE)) missing, not building bootstrap.uimage)
199 all:: $(addprefix $(IMAGES_DIR)/,$(INSTALL_TARGET))
200 $(VERBOSE)echo "Image size(s) in bytes:"
201 $(VERBOSE)for f in $(filter bootstrap_$(ENTRY_FN).elf bootstrap.raw bootstrap.uimage, $(INSTALL_TARGET)); do \
202 find . -name $$f -printf " %20f: %s\n"; \
204 $(VERBOSE)echo " --> Build-Nr: $$(cat .build_nr)"
206 # install images into easy to reach directory in build dir
207 $(IMAGES_DIR)/%: % $(IMAGES_DIR)/Makefile
208 $(VERBOSE)if [ "$(ENTRY)" != "auto-build-entry" ]; then \
209 echo " ==> Installing $< in image directory"; \
210 $(LN) -sf $(PWD)/$< $(dir $@); \
213 $(IMAGES_DIR)/Makefile: $(SRC_DIR)/Make.rules
214 @echo " ==> Preparing image directory"
215 $(VERBOSE)install -d $(dir $@)
216 $(VERBOSE)$(ECHO) "# Automatically generated by bootstrap" > $@
217 $(VERBOSE)$(ECHO) "a:" >> $@
218 $(VERBOSE)$(ECHO) " \$$(MAKE) -C .. image" >> $@
219 $(VERBOSE)$(ECHO) "%:" >> $@
220 $(VERBOSE)$(ECHO) " \$$(MAKE) -C .. image E=\"\$$@\"" >> $@
222 INSTALL_TARGET = bootstrap
225 ifneq ($(REALMODE_LOADING),0)
227 CPPFLAGS += -DREALMODE_LOADING -DSINGLE_SECTION
228 # don't install bootstrap_$(ENTRY_FN).elf
229 INSTALL_TARGET = bootstrap.load
232 ifneq ($(LOADER_MBI),0)
233 SRC_CC += loader_mbi.cc
234 MOD_ADDR = 0x00150000
235 CPPFLAGS += -DLOADER_MBI
238 ifneq ($(COMPRESS),0)
239 SRC_C += uncompress.c gunzip.c
240 CPPFLAGS += -DCOMPRESS
242 CPPFLAGS += -DPLACE_MODULES_AT_MODADDR
245 ifneq ($(RAM_SIZE_MB),)
246 CPPFLAGS += -DRAM_SIZE_MB=$(RAM_SIZE_MB)
250 all:: $(OBJ_DIR)/ARCH-amd64/libc32/OBJ-$(ARCH)_$(CPU)/libc32.a
253 CXXFLAGS += -fno-rtti -fno-exceptions
254 CXXFLAGS += $(call checkcxx,-fno-threadsafe-statics)
257 ifeq ($(filter clean cleanall,$(MAKECMDGOALS)),)
258 $(info Building entry "$(ENTRY)".)
259 BUILD_DUMMY := $(shell SEARCHPATH="$(BOOTSTRAP_SEARCH_PATH):$(BOOTSTRAP_MODULE_PATH_BINLIB)" \
260 CROSS_COMPILE=$(SYSTEM_TARGET) \
262 OPT_COMPRESS=$(COMPRESS) \
264 $(SRC_DIR)/build.pl $(BOOTSTRAP_MODULES_LIST) "$(ENTRY)" 1>&2 \
265 || echo X-build-failed-X)
266 ifeq ($(BUILD_DUMMY),X-build-failed-X)
267 $(error Processing of module list failed!)
269 BUILD_DUMMY := $(shell echo $(BUILD_DUMMY))
271 # mod.make.inc is generated by build.pl
275 OBJS_$(BOOTSTRAP_ELF_NAME) += $(MODULE_OBJECT_FILES)
276 CPPFLAGS += -DIMAGE_MODE
277 BOOTSTRAP_LD_dep += mod.make.inc
278 STARTUP_C_dep := mod.make.inc
281 CPPFLAGS += -DMODADDR=$(MOD_ADDR)
284 L4_LIBS = -static -nostdlib $(DRV_LIBS) -lcxx_base -lcxx_io
285 L4_LIBS += -luc_c $(GCCLIB)
287 all:: $(BOOTSTRAP_RAW)
289 # image for use with pxelinux
290 bootstrap.load: $(TARGET_BIN) bootsect.o.img setup.o.img
292 $(VERBOSE)objcopy -O binary -R .note -R .comment -S $< $<.load.bin
293 $(VERBOSE)cat bootsect.o.img setup.o.img $<.load.bin > $@
295 bootsect.o.img: ARCH-x86/bootsect.S Makefile
297 $(VERBOSE)$(CC) -traditional -nostdinc -nostdlib -c $<
298 $(VERBOSE)$(LD) -m elf_i386 -Ttext 0x0 -o $@ -s --oformat binary \
300 $(VERBOSE)chmod -x $@
302 setup.o.img: ARCH-x86/setup.S Makefile
304 $(VERBOSE)$(CC) -traditional -nostdinc -nostdlib -DARCH_$(ARCH) -c $<
305 $(VERBOSE)$(LD) -m elf_i386 -Ttext 0x0 -o $@ -s --oformat binary \
307 $(VERBOSE)dd if=/dev/zero bs=1 count=$$((3072 - `wc -c < setup.o.img`)) >> setup.o.img 2> /dev/null
308 $(VERBOSE)chmod -x $@
310 # raw version without ELF, primarily useful for ARM
311 $(BOOTSTRAP_RAW): $(TARGET_BIN)
313 $(VERBOSE)cp $< $@.tmp
314 $(VERBOSE)$(OBJCOPY) -O binary $@.tmp $@
315 $(VERBOSE)$(RM) $@.tmp
326 MKIMAGE_ARCH = $(if $(filter ppc32,$(ARCH)),ppc,$(ARCH))
328 # u-boot image, based on raw-version
329 $(BOOTSTRAP_UIMAGE): $(BOOTSTRAP_RAW).$(BOOTSTRAP_UIMAGE_COMPRESSION)
331 $(VERBOSE)$(MKIMAGE) -e $(call default_reloc,$(ARCH)) \
332 -a $(call default_reloc,$(ARCH)) -A $(MKIMAGE_ARCH) \
333 -C $(BOOTSTRAP_UIMAGE_COMPRESSION) \
336 $(TARGET): $(LDSCRIPT) $(OBJS_$(TARGET))
339 increment_build_nr = \
340 $(shell if [ -e .build_nr ]; then \
341 nr=$$(($$(cat .build_nr) + 1)); \
345 echo $$nr > .build_nr; echo $$nr)
348 startup.o: $(STARTUP_C_dep)
349 startup.o: CPPFLAGS += -DBUILD_DATE="\"$(shell date)\"" -DBUILD_NR=\"$(call increment_build_nr)\"
351 $(LDSCRIPT): $(LDSCRIPT).in $(GENERAL_D_LOC) $(BOOTSTRAP_LD_dep)
353 $(VERBOSE)cpp -P $(CPPFLAGS) -DLINKADDR=$(DEFAULT_RELOC_$(ARCH)) $< $@;
356 $(VERBOSE)$(RM) mod.make.inc mod*.bin mbi_modules.bin $(LDSCRIPT)
357 $(VERBOSE)$(RM) setup.o.img bootsect.o.img
358 $(VERBOSE)$(RM) mod*.bin
359 $(VERBOSE)$(RM) $(SRC32_C:.c=.o32) $(SRC32_S:.S=.o32)
360 $(VERBOSE)$(RM) .redo-change-tracker
363 $(VERBOSE)$(RM) bootstrap_* bootstrap.*
367 vpath %.c $(SRC_DIR)/ARCH-amd64
368 vpath %.S $(SRC_DIR)/ARCH-amd64
369 vpath %.c $(SRC_DIR)/ARCH-amd64/boot32
370 vpath %.S $(SRC_DIR)/ARCH-amd64/boot32
371 vpath bootstrap.ld.in $(SRC_DIR)/ARCH-x86
373 SRC32_C = boot_cpu.c boot_kernel.c load_elf.c minilibc_support.c
374 SRC32_S = boot.S boot_idt.S
375 OBJ32 = $(SRC32_S:.S=.o32) $(SRC32_C:.c=.o32)
376 CC32 = $(filter-out -m64, $(CC)) -m32
377 CFLAGS32 := $(filter-out -m64, $(CFLAGS)) -m32
379 $(OBJ_DIR)/ARCH-amd64/libc32/OBJ-$(ARCH)_$(CPU)/libc32.a: FORCE
380 $(VERBOSE)$(MAKE) O=$(OBJ_BASE) -C $(SRC_DIR)/ARCH-amd64/libc32
382 bootstrap: $(OBJ32) bootstrap32.bin $(OBJ_DIR)/ARCH-amd64/libc32/OBJ-$(ARCH)_$(CPU)/libc32.a
384 $(VERBOSE)$(CC32) -o $@ -nostdlib -static \
385 -Wl,-T,$(SRC_DIR)/ARCH-amd64/boot32/bootstrap32.ld,--gc-sections $^ -lgcc
386 $(VERBOSE)chmod 755 $@
388 bootstrap32.bin: $(TARGET)
390 $(VERBOSE)$(OBJCOPY) -S $< bootstrap64.bin
391 $(VERBOSE)chmod -x bootstrap64.bin
392 $(VERBOSE)$(OBJCOPY) -B i386 -I binary -O elf32-i386 bootstrap64.bin $@
396 $(VERBOSE)$(CC32) -o $@ -c $(DEPEND_FLAG) \
397 $(CPPFLAGS) $(CFLAGS32) $(call absfilename,$<)
401 $(VERBOSE)$(CC32) -o $@ -c $(DEPEND_FLAG) \
402 $(CPPFLAGS) $(CFLAGS32) $(call absfilename,$<)
405 $(VERBOSE)PWD=$(call absfilename,$(SRC_DIR)/ARCH-amd64/libc32) \
406 $(MAKE) -C $(SRC_DIR)/ARCH-amd64/libc32 $@
409 bootstrap: $(BOOTSTRAP_ELF_NAME)
410 $(VERBOSE)$(LN) -f $^ $@
413 bootstrap_$(ENTRY_FN): $(BOOTSTRAP_ELF_NAME)
414 $(VERBOSE)$(LN) -f $^ $@