# # 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 # # 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 \ ) targets := head.o decompress.o dbg.o uart-16550.o uart-alchemy.o # decompressor objects (linked with vmlinuz) vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o ifdef CONFIG_DEBUG_ZBOOT vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o endif 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_LZMA) = lzma tool_$(CONFIG_KERNEL_LZO) = lzo targets += vmlinux.bin.z $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE $(call if_changed,$(tool_y)) targets += piggy.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) # Calculate the load address of the compressed kernel image hostprogs-y := calc_vmlinuz_load_addr VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \ $(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS)) vmlinuzobjs-y += $(obj)/piggy.o quiet_cmd_zld = LD $@ cmd_zld = $(LD) $(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-y += ../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) clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec}