220 lines
5.8 KiB
Makefile
220 lines
5.8 KiB
Makefile
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License.
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#
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# Adapted for MIPS Pete Popov, Dan Malek
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#
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# Copyright (C) 1994 by Linus Torvalds
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# Adapted for PowerPC by Gary Thomas
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# modified by Cort (cort@cs.nmt.edu)
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#
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# Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University
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# Author: Wu Zhangjin <wuzhangjin@gmail.com>
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#
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include $(srctree)/arch/mips/Kbuild.platforms
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# set the default size of the mallocing area for decompressing
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BOOT_HEAP_SIZE := 0x400000
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# Disable Function Tracer
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KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE), $(KBUILD_CFLAGS))
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KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS))
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# Disable lq/sq in zboot
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ifdef CONFIG_CPU_LOONGSON64
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KBUILD_CFLAGS := $(filter-out -march=loongson3a, $(KBUILD_CFLAGS)) -march=mips64r2
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endif
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KBUILD_CFLAGS := $(KBUILD_CFLAGS) -D__KERNEL__ -D__DISABLE_EXPORTS \
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-DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull"
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KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
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-DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
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-DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS)
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# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
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KCOV_INSTRUMENT := n
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GCOV_PROFILE := n
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UBSAN_SANITIZE := n
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KCSAN_SANITIZE := n
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# decompressor objects (linked with vmlinuz)
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vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o
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ifdef CONFIG_DEBUG_ZBOOT
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vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o
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vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
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vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o
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vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o
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vmlinuzobjs-$(CONFIG_ATH79) += $(obj)/uart-ath79.o
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endif
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vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
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vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o $(obj)/ashldi3.o $(obj)/clz_ctz.o
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targets := $(notdir $(vmlinuzobjs-y))
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targets += vmlinux.bin
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OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
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$(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
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$(call if_changed,objcopy)
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tool_$(CONFIG_KERNEL_GZIP) = gzip
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tool_$(CONFIG_KERNEL_BZIP2) = bzip2_with_size
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tool_$(CONFIG_KERNEL_LZ4) = lz4_with_size
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tool_$(CONFIG_KERNEL_LZMA) = lzma_with_size
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tool_$(CONFIG_KERNEL_LZO) = lzo_with_size
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tool_$(CONFIG_KERNEL_XZ) = xzkern_with_size
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tool_$(CONFIG_KERNEL_ZSTD) = zstd22_with_size
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targets += vmlinux.bin.z
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$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
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$(call if_changed,$(tool_y))
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targets += piggy.o dummy.o
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OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
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--set-section-flags=.image=contents,alloc,load,readonly,data
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$(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
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$(call if_changed,objcopy)
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HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
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# Calculate the load address of the compressed kernel image
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hostprogs := calc_vmlinuz_load_addr
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ifneq (0x0,$(CONFIG_ZBOOT_LOAD_ADDRESS))
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zload-y = $(CONFIG_ZBOOT_LOAD_ADDRESS)
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endif
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ifneq ($(zload-y),)
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VMLINUZ_LOAD_ADDRESS := $(zload-y)
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else
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VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
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$(obj)/vmlinux.bin $(LINKER_LOAD_ADDRESS))
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endif
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UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
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vmlinuzobjs-y += $(obj)/piggy.o
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targets += ../../../../vmlinuz
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quiet_cmd_zld = LD $@
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cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
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quiet_cmd_strip = STRIP $@
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cmd_strip = $(STRIP) -s $@
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$(objtree)/vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
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$(call cmd,zld)
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$(call cmd,strip)
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objboot := $(objtree)/arch/mips/boot
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$(objboot)/vmlinuz: $(objtree)/vmlinuz FORCE
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#
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# Some DECstations need all possible sections of an ECOFF executable
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#
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ifdef CONFIG_MACH_DECSTATION
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e2eflag := -a
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endif
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# elf2ecoff can only handle 32bit image
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hostprogs += ../elf2ecoff
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ifdef CONFIG_32BIT
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VMLINUZ = $(objtree)/vmlinuz
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else
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VMLINUZ = $(objboot)/vmlinuz.32
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endif
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targets += ../vmlinuz.32
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quiet_cmd_32 = OBJCOPY $@
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cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
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$(objboot)/vmlinuz.32: $(objtree)/vmlinuz
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$(call cmd,32)
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targets += ../vmlinuz.ecoff
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quiet_cmd_ecoff = ECOFF $@
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cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
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$(objboot)/vmlinuz.ecoff: $(objboot)/elf2ecoff $(VMLINUZ)
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$(call cmd,ecoff)
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targets += ../vmlinuz.bin
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OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
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$(objboot)/vmlinuz.bin: $(objtree)/vmlinuz
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$(call cmd,objcopy)
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targets += ../vmlinuz.srec
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OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
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$(objboot)/vmlinuz.srec: $(objtree)/vmlinuz
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$(call cmd,objcopy)
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targets += ../uzImage.bin
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$(objboot)/uzImage.bin: $(objboot)/vmlinuz.bin FORCE
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$(call if_changed,uimage,none)
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#
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# Flattened Image Tree (.itb) image
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#
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ifeq ($(ADDR_BITS),32)
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itb_addr_cells = 1
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endif
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ifeq ($(ADDR_BITS),64)
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itb_addr_cells = 2
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endif
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targets += ../vmlinuz.its.S
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quiet_cmd_its_cat = CAT $@
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cmd_its_cat = cat $(real-prereqs) >$@
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$(objboot)/vmlinuz.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS)) FORCE
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$(call if_changed,its_cat)
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targets += ../vmlinuz.its
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quiet_cmd_cpp_its_S = ITS $@
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cmd_cpp_its_S = $(CPP) -P -C -o $@ $< \
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-DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
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-DVMLINUX_BINARY="\"$(2)\"" \
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-DVMLINUX_COMPRESSION="\"none\"" \
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-DVMLINUX_LOAD_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
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-DVMLINUX_ENTRY_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
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-DADDR_BITS=$(ADDR_BITS) \
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-DADDR_CELLS=$(itb_addr_cells)
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$(objboot)/vmlinuz.its: $(objboot)/vmlinuz.its.S FORCE
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$(call if_changed,cpp_its_S,vmlinuz.bin)
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targets += ../vmlinuz.itb
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quiet_cmd_itb-image = ITB $@
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cmd_itb-image = \
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env PATH="$(objtree)/scripts/dtc:$(PATH)" \
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$(BASH) $(MKIMAGE) \
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-D "-I dts -O dtb -p 500 \
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--include $(objtree)/arch/mips \
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--warning no-unit_address_vs_reg" \
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-f $(2) $@
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$(objboot)/vmlinuz.itb: $(objboot)/vmlinuz.its $(objboot)/vmlinuz.bin FORCE
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$(call if_changed,itb-image,$<)
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