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

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@513 3c298f89-4303-0410-b956-a3cf2f4a3e73

6 files changed, 15 insertions, 74 deletions

diff --git a/package/Config.in b/package/Config.in
index 3f5afce1b..8b46c15f1 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -3,6 +3,7 @@
 menu "OpenWrt Package Selection"
 
 comment "The default set"
+source "package/loader/Config.in"
 source "package/busybox/Config.in"
 source "package/dnsmasq/Config.in"
 source "package/iptables/Config.in"
diff --git a/package/Makefile b/package/Makefile
index 66080a84e..429741d39 100644
--- a/package/Makefile
+++ b/package/Makefile
@@ -19,6 +19,7 @@ package-$(BR2_PACKAGE_IPTABLES) += iptables
 package-$(BR2_PACKAGE_IPROUTE2) += iproute2
 package-$(BR2_PACKAGE_LCD4LINUX) += lcd4linux
 package-$(BR2_PACKAGE_LIBELF) += libelf
+package-$(BR2_PACKAGE_LOADER) += loader
 package-$(BR2_PACKAGE_LZO) += lzo
 package-$(BR2_PACKAGE_MATRIXSSL) += matrixssl
 package-$(BR2_PACKAGE_MICROPERL) += microperl
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile
index 400465326..ead9d0743 100644
--- a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/compressed/Makefile
@@ -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
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c
index e1b0050a4..2132c0083 100644
--- a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c
+++ b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/setup.c
@@ -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;
diff --git a/package/linux/linux.mk b/package/linux/linux.mk
index 02cc3bb8a..4284c38f0 100644
--- a/package/linux/linux.mk
+++ b/package/linux/linux.mk
@@ -25,7 +25,7 @@ LINUX_SOURCE=linux-$(LINUX_VERSION).tar.bz2
 LINUX_KCONFIG=./linux.config
 LINUX_PATCHES=./kernel-patches
 LINUX_KERNEL_SOURCE=./kernel-source
-LINUX_BINLOC=arch/$(LINUX_KARCH)/brcm-boards/bcm947xx/compressed/vmlinuz
+LINUX_BINLOC=arch/$(LINUX_KARCH)/brcm-boards/bcm947xx/compressed/piggy
 # Used by pcmcia-cs and others
 LINUX_SOURCE_DIR=$(LINUX_DIR)-$(LINUX_VERSION)
 
diff --git a/package/openwrt/jffs2root.c b/package/openwrt/jffs2root.c
index e0cbfb94e..d79532ea6 100644
--- a/package/openwrt/jffs2root.c
+++ b/package/openwrt/jffs2root.c
@@ -73,6 +73,8 @@ int main(int argc, char **argv)
     int fd;
     unsigned long len;
     struct trx_header *ptr;
+    unsigned offset;
+	
     if (((fd = open(FILENAME, O_RDWR))  < 0)
     || ((len = lseek(fd, 0, SEEK_END)) < 0)
     || ((ptr = (struct trx_header *) mmap(0, len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1))
@@ -81,17 +83,20 @@ int main(int argc, char **argv)
 	exit(-1);
     }
 
+    /* treat last partition as rootfs offset */
+    offset = ptr->offsets[2] ? : ptr->offsets[1];
+	
     if (argc > 1 && !strcmp(argv[1],"--move")) {
-      if (ptr->offsets[1] >= ptr->len) {
+      if (offset >= ptr->len) {
         printf("Partition already moved outside trx\n");
 #if 0
-      } else if (ptr->offsets[1] & 0x0001ffff) {
+      } else if (offset & 0x0001ffff) {
         printf("Partition does not start on a block boundary\n");
 #endif
       } else {
 	init_crc32();
 	//bzero((void *)((int)ptr + ptr->len), (size_t)(len - ptr->len));
-        ptr->len = ptr->offsets[1];
+        ptr->len = offset;
         ptr->crc32 = crc32buf((void *) &(ptr->flag_version), ptr->len - offsetof(struct trx_header, flag_version));
 	msync(ptr,len,MS_SYNC|MS_INVALIDATE);
 	printf("Partition moved; please reboot\n");