| # |
| # This file is subject to the terms and conditions of the GNU General Public |
| # License. |
| # |
| # Adapted for MIPS Pete Popov, Dan Malek |
| # |
| # Copyright (C) 1994 by Linus Torvalds |
| # Adapted for PowerPC by Gary Thomas |
| # modified by Cort (cort@cs.nmt.edu) |
| # |
| # Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University |
| # Author: Wu Zhangjin <wuzhangjin@gmail.com> |
| # |
| |
| include $(srctree)/arch/mips/Kbuild.platforms |
| |
| # set the default size of the mallocing area for decompressing |
| BOOT_HEAP_SIZE := 0x400000 |
| |
| # Disable Function Tracer |
| KBUILD_CFLAGS := $(filter-out -pg, $(KBUILD_CFLAGS)) |
| |
| KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS)) |
| |
| # Disable lq/sq in zboot |
| ifdef CONFIG_CPU_LOONGSON64 |
| KBUILD_CFLAGS := $(filter-out -march=loongson3a, $(KBUILD_CFLAGS)) -march=mips64r2 |
| endif |
| |
| KBUILD_CFLAGS := $(KBUILD_CFLAGS) -D__KERNEL__ -D__DISABLE_EXPORTS \ |
| -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull" |
| |
| KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ |
| -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ |
| -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS) |
| |
| # Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. |
| KCOV_INSTRUMENT := n |
| UBSAN_SANITIZE := n |
| |
| # decompressor objects (linked with vmlinuz) |
| vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o |
| |
| ifdef CONFIG_DEBUG_ZBOOT |
| vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o |
| vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o |
| vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o |
| vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o |
| vmlinuzobjs-$(CONFIG_ATH79) += $(obj)/uart-ath79.o |
| endif |
| |
| extra-y += uart-ath79.c |
| $(obj)/uart-ath79.c: $(srctree)/arch/mips/ath79/early_printk.c |
| $(call cmd,shipped) |
| |
| vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o |
| |
| extra-y += ashldi3.c |
| $(obj)/ashldi3.c: $(obj)/%.c: $(srctree)/lib/%.c FORCE |
| $(call if_changed,shipped) |
| |
| extra-y += bswapsi.c |
| $(obj)/bswapsi.c: $(obj)/%.c: $(srctree)/arch/mips/lib/%.c FORCE |
| $(call if_changed,shipped) |
| |
| targets := $(notdir $(vmlinuzobjs-y)) |
| |
| targets += vmlinux.bin |
| OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S |
| $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE |
| $(call if_changed,objcopy) |
| |
| tool_$(CONFIG_KERNEL_GZIP) = gzip |
| tool_$(CONFIG_KERNEL_BZIP2) = bzip2 |
| tool_$(CONFIG_KERNEL_LZ4) = lz4 |
| tool_$(CONFIG_KERNEL_LZMA) = lzma |
| tool_$(CONFIG_KERNEL_LZO) = lzo |
| tool_$(CONFIG_KERNEL_XZ) = xzkern |
| tool_$(CONFIG_KERNEL_ZSTD) = zstd22 |
| |
| targets += vmlinux.bin.z |
| $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE |
| $(call if_changed,$(tool_y)) |
| |
| targets += piggy.o dummy.o |
| OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \ |
| --set-section-flags=.image=contents,alloc,load,readonly,data |
| $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE |
| $(call if_changed,objcopy) |
| |
| HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE) |
| |
| # Calculate the load address of the compressed kernel image |
| hostprogs := calc_vmlinuz_load_addr |
| |
| ifneq ($(zload-y),) |
| VMLINUZ_LOAD_ADDRESS := $(zload-y) |
| else |
| VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \ |
| $(obj)/vmlinux.bin $(LINKER_LOAD_ADDRESS)) |
| endif |
| UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS) |
| |
| vmlinuzobjs-y += $(obj)/piggy.o |
| |
| quiet_cmd_zld = LD $@ |
| cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@ |
| quiet_cmd_strip = STRIP $@ |
| cmd_strip = $(STRIP) -s $@ |
| vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr |
| $(call cmd,zld) |
| $(call cmd,strip) |
| |
| # |
| # Some DECstations need all possible sections of an ECOFF executable |
| # |
| ifdef CONFIG_MACH_DECSTATION |
| e2eflag := -a |
| endif |
| |
| # elf2ecoff can only handle 32bit image |
| hostprogs += ../elf2ecoff |
| |
| ifdef CONFIG_32BIT |
| VMLINUZ = vmlinuz |
| else |
| VMLINUZ = vmlinuz.32 |
| endif |
| |
| quiet_cmd_32 = OBJCOPY $@ |
| cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ |
| vmlinuz.32: vmlinuz |
| $(call cmd,32) |
| |
| quiet_cmd_ecoff = ECOFF $@ |
| cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag) |
| vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ) |
| $(call cmd,ecoff) |
| |
| OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary |
| vmlinuz.bin: vmlinuz |
| $(call cmd,objcopy) |
| |
| OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec |
| vmlinuz.srec: vmlinuz |
| $(call cmd,objcopy) |
| |
| uzImage.bin: vmlinuz.bin FORCE |
| $(call if_changed,uimage,none) |
| |
| clean-files += $(objtree)/vmlinuz |
| clean-files += $(objtree)/vmlinuz.32 |
| clean-files += $(objtree)/vmlinuz.ecoff |
| clean-files += $(objtree)/vmlinuz.bin |
| clean-files += $(objtree)/vmlinuz.srec |