| # |
| # 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> |
| # |
| |
| # compressed kernel load addr: VMLINUZ_LOAD_ADDRESS > VMLINUX_LOAD_ADDRESS + VMLINUX_SIZE |
| VMLINUX_SIZE := $(shell wc -c $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | cut -d' ' -f1) |
| VMLINUX_SIZE := $(shell [ -n "$(VMLINUX_SIZE)" ] && echo -n $$(($(VMLINUX_SIZE) + (65536 - $(VMLINUX_SIZE) % 65536)))) |
| # VMLINUZ_LOAD_ADDRESS = concat "high32 of VMLINUX_LOAD_ADDRESS" and "(low32 of VMLINUX_LOAD_ADDRESS) + VMLINUX_SIZE" |
| HIGH32 := $(shell A=$(VMLINUX_LOAD_ADDRESS); [ $${\#A} -gt 10 ] && expr substr "$(VMLINUX_LOAD_ADDRESS)" 3 $$(($${\#A} - 10))) |
| LOW32 := $(shell [ -n "$(HIGH32)" ] && A=11 || A=3; expr substr "$(VMLINUX_LOAD_ADDRESS)" $${A} 8) |
| VMLINUZ_LOAD_ADDRESS := 0x$(shell [ -n "$(VMLINUX_SIZE)" -a -n "$(LOW32)" ] && printf "$(HIGH32)%08x" $$(($(VMLINUX_SIZE) + 0x$(LOW32)))) |
| |
| # set the default size of the mallocing area for decompressing |
| BOOT_HEAP_SIZE := 0x400000 |
| |
| # Disable Function Tracer |
| KBUILD_CFLAGS := $(shell echo $(KBUILD_CFLAGS) | sed -e "s/-pg//") |
| |
| KBUILD_CFLAGS := $(LINUXINCLUDE) $(KBUILD_CFLAGS) -D__KERNEL__ \ |
| -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull" |
| |
| KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ |
| -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ |
| -DKERNEL_ENTRY=0x$(shell $(NM) $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | grep " kernel_entry" | cut -f1 -d \ ) |
| |
| obj-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o |
| |
| ifdef CONFIG_DEBUG_ZBOOT |
| obj-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o |
| obj-$(CONFIG_MACH_ALCHEMY) += $(obj)/uart-alchemy.o |
| endif |
| |
| OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S |
| $(obj)/vmlinux.bin: $(KBUILD_IMAGE) |
| $(call if_changed,objcopy) |
| |
| suffix_$(CONFIG_KERNEL_GZIP) = gz |
| suffix_$(CONFIG_KERNEL_BZIP2) = bz2 |
| suffix_$(CONFIG_KERNEL_LZMA) = lzma |
| suffix_$(CONFIG_KERNEL_LZO) = lzo |
| tool_$(CONFIG_KERNEL_GZIP) = gzip |
| tool_$(CONFIG_KERNEL_BZIP2) = bzip2 |
| tool_$(CONFIG_KERNEL_LZMA) = lzma |
| tool_$(CONFIG_KERNEL_LZO) = lzo |
| $(obj)/vmlinux.$(suffix_y): $(obj)/vmlinux.bin |
| $(call if_changed,$(tool_y)) |
| |
| $(obj)/piggy.o: $(obj)/vmlinux.$(suffix_y) $(obj)/dummy.o |
| $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) \ |
| --add-section=.image=$< \ |
| --set-section-flags=.image=contents,alloc,load,readonly,data \ |
| $(obj)/dummy.o $@ |
| |
| LDFLAGS_vmlinuz := $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T |
| vmlinuz: $(src)/ld.script $(obj-y) $(obj)/piggy.o |
| $(call if_changed,ld) |
| $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) $@ |
| |
| # |
| # Some DECstations need all possible sections of an ECOFF executable |
| # |
| ifdef CONFIG_MACH_DECSTATION |
| E2EFLAGS = -a |
| else |
| E2EFLAGS = |
| endif |
| |
| # elf2ecoff can only handle 32bit image |
| |
| ifdef CONFIG_32BIT |
| VMLINUZ = vmlinuz |
| else |
| VMLINUZ = vmlinuz.32 |
| endif |
| |
| vmlinuz.32: vmlinuz |
| $(Q)$(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ |
| |
| vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ) |
| $(Q)$(obj)/../elf2ecoff $(VMLINUZ) vmlinuz.ecoff $(E2EFLAGS) |
| |
| $(obj)/../elf2ecoff: $(src)/../elf2ecoff.c |
| $(Q)$(HOSTCC) -o $@ $^ |
| |
| OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary |
| vmlinuz.bin: vmlinuz |
| $(call if_changed,objcopy) |
| |
| OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec |
| vmlinuz.srec: vmlinuz |
| $(call if_changed,objcopy) |
| |
| clean: |
| clean-files += *.o \ |
| vmlinu* |