diff options
Diffstat (limited to 'arch/mips/boot/compressed/Makefile')
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 81 |
1 files changed, 42 insertions, 39 deletions
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index 790ddd3..ed9bb70 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -12,14 +12,6 @@ # 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 @@ -33,49 +25,61 @@ 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 +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 $(obj)/dbg.o ifdef CONFIG_DEBUG_ZBOOT -obj-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o -obj-$(CONFIG_MACH_ALCHEMY) += $(obj)/uart-alchemy.o +vmlinuzobjs-$(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: $(KBUILD_IMAGE) +$(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE $(call if_changed,objcopy) -suffix_$(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): $(obj)/vmlinux.bin + +targets += vmlinux.bin.z +$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE $(call if_changed,$(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 $@ +targets += piggy.o +OBJCOPYFLAGS_piggy.o := --add-section=.image=$(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 \ + $(objtree)/$(KBUILD_IMAGE) $(VMLINUX_LOAD_ADDRESS)) -LDFLAGS_vmlinuz := $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T -vmlinuz: $(src)/ld.script $(obj-y) $(obj)/piggy.o - $(call if_changed,ld) - $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) $@ +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 - E2EFLAGS = -a -else - E2EFLAGS = + e2eflag := -a endif # elf2ecoff can only handle 32bit image +hostprogs-y += ../elf2ecoff ifdef CONFIG_32BIT VMLINUZ = vmlinuz @@ -83,23 +87,22 @@ else VMLINUZ = vmlinuz.32 endif +quiet_cmd_32 = OBJCOPY $@ + cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ vmlinuz.32: vmlinuz - $(Q)$(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ + $(call cmd,32) +quiet_cmd_ecoff = ECOFF $@ + cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag) vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ) - $(Q)$(obj)/../elf2ecoff $(VMLINUZ) vmlinuz.ecoff $(E2EFLAGS) - -$(obj)/../elf2ecoff: $(src)/../elf2ecoff.c - $(Q)$(HOSTCC) -o $@ $^ + $(call cmd,ecoff) OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary vmlinuz.bin: vmlinuz - $(call if_changed,objcopy) + $(call cmd,objcopy) OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec vmlinuz.srec: vmlinuz - $(call if_changed,objcopy) + $(call cmd,objcopy) -clean: -clean-files += *.o \ - vmlinu* +clean-files := $(objtree)/vmlinuz.* |
