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224 lines
5.9 KiB
224 lines
5.9 KiB
# |
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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 ([email protected]) |
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# |
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# Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University |
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# Author: Wu Zhangjin <[email protected]> |
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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 -pg, $(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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# decompressor objects (linked with vmlinuz) |
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vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o |
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ifdef CONFIG_DEBUG_ZBOOT |
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vmlinuzobjs-$(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) += $(obj)/uart-ath79.o |
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endif |
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extra-y += uart-ath79.c |
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$(obj)/uart-ath79.c: $(srctree)/arch/mips/ath79/early_printk.c |
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$(call cmd,shipped) |
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vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o $(obj)/bswapsi.o |
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extra-y += ashldi3.c |
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$(obj)/ashldi3.c: $(obj)/%.c: $(srctree)/lib/%.c FORCE |
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$(call if_changed,shipped) |
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extra-y += bswapsi.c |
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$(obj)/bswapsi.c: $(obj)/%.c: $(srctree)/arch/mips/lib/%.c FORCE |
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$(call if_changed,shipped) |
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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 |
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tool_$(CONFIG_KERNEL_LZ4) = lz4 |
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tool_$(CONFIG_KERNEL_LZMA) = lzma |
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tool_$(CONFIG_KERNEL_LZO) = lzo |
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tool_$(CONFIG_KERNEL_XZ) = xzkern |
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tool_$(CONFIG_KERNEL_ZSTD) = zstd22 |
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targets += vmlinux.bin.z |
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$(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 += $(LINUXINCLUDE) |
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# Calculate the load address of the compressed kernel image |
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hostprogs := calc_vmlinuz_load_addr |
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ifneq ($(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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