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Diffstat (limited to 'arch/mips/boot/compressed/Makefile')
-rw-r--r--arch/mips/boot/compressed/Makefile81
1 files changed, 42 insertions, 39 deletions
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 790ddd39762..ed9bb709c9a 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.*