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lzma loader patch from oleg, great thanks good work, saves another 300 kb flashmemory

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@513 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
wbx
2005-04-02 12:12:58 +00:00
parent 59cf9955ad
commit 21db875713
11 changed files with 45 additions and 88 deletions
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71
package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile
View File

@@ -11,40 +11,11 @@
#
# $Id$
#
# 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
all: vmlinuz
# Don't build dependencies, this may die if $(CC) isn't gcc
dep:
@@ -53,48 +24,10 @@ dep:
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
rm -f vmlinuz piggy

3
package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c
View File

@@ -195,7 +195,8 @@ find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
/* found a TRX header */
if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
part->offset = le32_to_cpu(trx->offsets[1]);
part->offset = le32_to_cpu(trx->offsets[2]) ? :
le32_to_cpu(trx->offsets[1]);
part->size = le32_to_cpu(trx->len);
part->size -= part->offset;