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#
# Makefile for compressed self-booting CFE on Broadcom BCM947XX boards
#
# Copyright 2006, Broadcom Corporation
# All Rights Reserved.
#
# This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;
# the contents of this file may not be disclosed to third parties, copied
# or duplicated in any form, in whole or in part, without the prior
# written permission of Broadcom Corporation.
#
# $Id: Makefile,v 1.1.1.1 2008/07/21 09:14:10 james26_jang Exp $
#
CROSS_COMPILE := $(TOOLPREFIX)
CC := $(GCC)
LD := $(GLD)
LOADADDR := $(CFG_TEXT_START)
# The self-decompresor uses the minimal OSL, get rid of _CFE_ and vxworks
CFLAGS := $(subst -D_CFE_,,$(CFLAGS)) -fdata-sections
CFLAGS += -D_MINOSL_ -Uvxworks -U__vxworks
# Link at 3 MB offset in RAM
TEXT_START := 0x80001000
OBJCOPY := $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
OBJCOPYSREC := $(CROSS_COMPILE)objcopy -O srec -R .reginfo -R .note -R .comment -R .mdebug -S
SYSTEM := ../cfe
vpath %.c $(SRCBASE)/shared
vpath %.S $(SRCBASE)/shared
vpath %.lds.in $(SRCBASE)/shared
CFLAGS += -DLOADADDR=$(LOADADDR)
CFLAGS += -ffunction-sections $(call check_gcc, -fvtable-gc, )
OBJECTS := boot.o sbsdram.o load.o sflash.o hndmips.o hndchipc.o sbutils.o \
min_osl.o bcmutils.o bcmstdlib.o sromstubs.o nvramstubs.o hndpmu.o
# Default to gzip, bzip2 not worth it for small binaries
COMPRESS := gzip -c9
ifneq ($(findstring gzip,$(COMPRESS)),)
CFLAGS += -DUSE_GZIP
else
ifneq ($(findstring bzip2,$(COMPRESS)),)
CFLAGS += -DUSE_BZIP2
else
COMPRESS := cat
endif
endif
all: cfez.bin
# Don't build dependencies, this may die if $(CC) isn't gcc
dep:
cfez.bin: cfez
$(OBJCOPY) $< $@
$(OBJCOPYSREC) $< cfez.srec
@if [ "$(CFEZ_MAXSIZE)" != "" ]; then \
if [ "`wc -c < cfez.bin`" -gt "$(CFEZ_MAXSIZE)" ]; then \
echo "*** ERROR *** : cfez.bin bootrom image size: `wc -c < cfez.bin` exceeds limit: $(CFEZ_MAXSIZE)"; \
exit 127; \
fi; \
fi; \
# Link the loader and the kernel binary together
cfez: cfez.lds $(OBJECTS) piggy.o
$(LD) -static -Map cfez.map --gc-sections -no-warn-mismatch -T cfez.lds -o $@ $(OBJECTS) piggy.o
cfez.lds: hndrte.lds.in Makefile
sed -e s/TEXT_START/$(TEXT_START)/ \
-e s/TARGET_ARCH/mips/ < $< > $@
# Create a linkable version of the (possibly compressed) kernel binary
piggy.o: piggz piggy.lds
ifeq ($(CFG_LITTLE), 1)
$(LD) -no-warn-mismatch -T piggy.lds -r -o $@ -b binary piggz -b elf32-tradlittlemips
else
$(LD) -no-warn-mismatch -T piggy.lds -r -o $@ -b binary piggz -b elf32-bigmips
endif
piggy.lds:
@echo "SECTIONS { .data : { input_len = .; LONG(input_data_end - input_data) input_data = .; *(.data) input_data_end = .; }}" > $@
piggz: piggy
$(COMPRESS) $< > $@
piggy: $(SYSTEM)
$(OBJCOPY) $< $@
mrproper: clean
clean:
rm -f cfez cfez.bin cfez.srec piggz piggy *.lds *.o *.map
%.o : %.S
$(GCC) $(CFLAGS) -o $@ $<
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