diff options
Diffstat (limited to 'openwrt/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile')
| -rw-r--r-- | openwrt/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/openwrt/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile b/openwrt/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile new file mode 100644 index 000000000..400465326 --- /dev/null +++ b/openwrt/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile @@ -0,0 +1,100 @@ +# +# Makefile for Broadcom BCM947XX boards +# +# Copyright 2001-2003, Broadcom Corporation +# All Rights Reserved. +# +# THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY +# KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM +# SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS +# FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. +# +# $Id$ +# +# Copyright 2004 Manuel Novoa III <mjn3@codepoet.org> +# Modified to support bzip'd kernels. +# Of course, it would be better to integrate bunzip capability into CFE. +# + +# Link at 3 MB offset in RAM +#TEXT_START ?= 0x80300000 +TEXT_START ?= 0x80001000 +BZ_MEM_TOP := 0x81000000 +BZ_TEXT_START := BZ_MEM_TOP-0x4000 +BZ_STACK_TOP := BZ_TEXT_START-4 + +OBJCOPY := $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S + +SRCBASE := $(TOPDIR)/../.. +VPATH := $(SRCBASE)/shared +ASFLAGS += -D__ASSEMBLY__ -I$(SRCBASE)/include -DLOADADDR=$(LOADADDR) +ASFLAGS += -DBZ_MEM_TOP=$(BZ_MEM_TOP) +ASFLAGS += -DBZ_TEXT_START=$(BZ_TEXT_START) +ASFLAGS += -DBZ_STACK_TOP=$(BZ_STACK_TOP) +CFLAGS += -I$(SRCBASE)/include -DLOADADDR=$(LOADADDR) +CFLAGS += -DBZ_MEM_TOP=$(BZ_MEM_TOP) +CFLAGS += -DBZ_TEXT_START=$(BZ_TEXT_START) +CFLAGS += -DBZ_STACK_TOP=$(BZ_STACK_TOP) +ifdef CONFIG_MCOUNT +CFLAGS := $(subst -pg,,$(CFLAGS)) +endif +CFLAGS += -ffunction-sections $(call check_gcc, -fvtable-gc, ) +SEDFLAGS := s/BZ_TEXT_START/$(BZ_TEXT_START)/;s/BZ_MEM_TOP/$(BZ_MEM_TOP)/;s/TEXT_START/$(TEXT_START)/ + +SYSTEM ?= $(TOPDIR)/vmlinux +OBJECTS := head.o data.o + +all: bzImage vmlinuz + +# Don't build dependencies, this may die if $(CC) isn't gcc +dep: + +# Create a gzipped version named vmlinuz for compatibility +vmlinuz: piggy + gzip -c9 $< > $@ + +# Our bzImage is a gzip'd binary that decompresses and runs +# the appended bzip'd kernel. +bzImage: bzLoaderImage.gz piggz + cat bzLoaderImage.gz piggz > $@ + +bzLoaderImage.gz: bzLoaderImage + gzip -nc9 $< > $@ + +bzLoaderImage: bzLoader + $(OBJCOPY) $< $@ + +bzLoader: vmlinux.lds $(OBJECTS) + $(LD) -static --gc-sections -no-warn-mismatch -T vmlinux.lds -o $@ $(OBJECTS) + +vmlinux.lds: vmlinux.lds.in Makefile + @sed "$(SEDFLAGS)" < $< > $@ + +piggz: piggy + bzip2 -c9 $< > $@ + +piggy: $(SYSTEM) + $(OBJCOPY) $< $@ + +data.o: data.lds data.image + $(LD) -no-warn-mismatch -T data.lds -r -o $@ -b binary data.image -b elf32-tradlittlemips + +data.lds: + @echo "SECTIONS { .data : { code_start = .; *(.data) code_stop = .; }}" > $@ + +data.image: decompress_bunzip2.image + $(OBJCOPY) $< $@ + +decompress_bunzip2.image: decompress_bunzip2.lds decompress_bunzip2.o + $(LD) -static --gc-sections -no-warn-mismatch -T decompress_bunzip2.lds -o $@ decompress_bunzip2.o + +decompress_bunzip2.lds: decompress_bunzip2.lds.in Makefile + @sed "$(SEDFLAGS)" < $< > $@ + +mrproper: clean + +clean: + rm -f vmlinux vmlinuz piggz piggy *.lds *.o \ + bzLoader bzLoaderImage bzLoaderImage.gz bzImage \ + data.lds data.image \ + decompress_bunzip2.lds decompress_bunzip2.image |