Archos targets: Self-extractor for on-disk firmware images to work around the file size limit. Re-uses rockbox.ucl. Not yet integrated with build system.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8089 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 42 insertions, 0 deletions

diff --git a/firmware/decompressor/Makefile b/firmware/decompressor/Makefile
new file mode 100644
index 0000000..99e91aa
--- /dev/null
+++ b/firmware/decompressor/Makefile
@@ -0,0 +1,42 @@
+#             __________               __   ___.
+#   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+#   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+#   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+#   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+#                     \/            \/     \/    \/            \/
+# $Id$
+#
+
+CC = sh-elf-gcc
+LD = sh-elf-ld
+AR = sh-elf-ar
+AS = sh-elf-as
+OC = sh-elf-objcopy
+
+TOOLSDIR=../../tools
+OBJDIR := .
+# FIXME: get proper value from build system
+MEMORYSIZE = 2
+
+
+LDS := link.lds
+LINKFILE = $(OBJDIR)/linkage.lds
+OBJS := $(OBJDIR)/decompressor.o $(OBJDIR)/rockboxucl.o
+
+CFLAGS = -O -W -Wall -m1 -nostdlib -ffreestanding -Wstrict-prototypes -fomit-frame-pointer -fschedule-insns
+
+$(OBJDIR)/compressed.bin : $(OBJDIR)/compressed.elf
+	@echo "OBJCOPY "`basename $@`
+	@$(OC) -O binary $< $@
+
+$(OBJDIR)/compressed.elf : $(OBJS) $(LINKFILE)
+	@echo "LD rockbox.elf"
+	@$(CC) $(GCCOPTS) -Os -nostdlib -o $@ $(OBJS) -T$(LINKFILE) -Wl,-Map,$(OBJDIR)/compressed.map
+
+$(LINKFILE): $(LDS)
+	@echo "Build LDS file"
+	@cat $< | $(CC) -DMEMORYSIZE=$(MEMORYSIZE) $(INCLUDES) $(TARGET) $(DEFINES) -E -P $(ROMBUILD) - >$@
+
+$(OBJDIR)/rockboxucl.o: $(OBJDIR)/rockbox.ucl
+	@echo "OBJCOPY rockbox.ucl"
+	@$(OC) -I binary -O elf32-sh -B sh --rename-section .data=.image,alloc,load,data,contents $< $@