diff options
Diffstat (limited to 'arch/mips/boot/compressed/Makefile')
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile new file mode 100644 index 0000000..e27f40b --- /dev/null +++ b/arch/mips/boot/compressed/Makefile @@ -0,0 +1,100 @@ +# +# 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 <wuzj@lemote.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 $$(($(VMLINUX_SIZE) + (65536 - $(VMLINUX_SIZE) % 65536)))) +VMLINUZ_LOAD_ADDRESS := 0x$(shell [ -n "$(VMLINUX_SIZE)" ] && printf %x $$(($(VMLINUX_LOAD_ADDRESS) + $(VMLINUX_SIZE)))) + +# 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) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ + -DKERNEL_ENTRY=0x$(shell $(NM) $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | grep " kernel_entry" | cut -f1 -d \ ) \ + -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) + +obj-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o + +obj-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o + +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 +tool_$(CONFIG_KERNEL_GZIP) = gzip +tool_$(CONFIG_KERNEL_BZIP2) = bzip2 +tool_$(CONFIG_KERNEL_LZMA) = lzma +$(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) -R .comment -R .stab -R .stabstr -R .initrd -R .sysmap $@ + +# +# 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 $@ $^ + +drop-sections = .reginfo .mdebug .comment .note .pdr .options .MIPS.options +strip-flags = $(addprefix --remove-section=,$(drop-sections)) + +OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary $(strip-flags) +vmlinuz.bin: vmlinuz + $(call if_changed,objcopy) + +OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec $(strip-flags) +vmlinuz.srec: vmlinuz + $(call if_changed,objcopy) + +clean: +clean-files += *.o \ + vmlinu* |