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#
# 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.
#
# 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.
#
# Copyright 2005 Oleg I. Vdovikin <oleg@cs.msu.su>
# Cleaned up, modified for lzma support, removed from kernel
#
TEXT_START := 0x80001000
BZ_TEXT_START := 0x80400000
OBJCOPY := $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
CFLAGS = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
-fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \
-ffunction-sections -pipe -mlong-calls -fno-common \
-mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap
CFLAGS += -DLOADADDR=$(TEXT_START) -D_LZMA_IN_CB
ASFLAGS = $(CFLAGS) -D__ASSEMBLY__ -DBZ_TEXT_START=$(BZ_TEXT_START)
SEDFLAGS := s/BZ_TEXT_START/$(BZ_TEXT_START)/;s/TEXT_START/$(TEXT_START)/
OBJECTS := head.o data.o
all: loader.gz loader.elf
# Don't build dependencies, this may die if $(CC) isn't gcc
dep:
install:
loader.gz: loader
gzip -nc9 $< > $@
loader.elf: loader.o
cp $< $@
loader: loader.o
$(OBJCOPY) $< $@
loader.o: loader.lds $(OBJECTS)
$(LD) -static --gc-sections -no-warn-mismatch -T loader.lds -o $@ $(OBJECTS)
loader.lds: loader.lds.in Makefile
@sed "$(SEDFLAGS)" < $< > $@
data.o: data.lds decompress.image
$(LD) -no-warn-mismatch -T data.lds -r -o $@ -b binary decompress.image -b elf32-tradlittlemips
data.lds:
@echo "SECTIONS { .data : { code_start = .; *(.data) code_stop = .; }}" > $@
decompress.image: decompress
$(OBJCOPY) $< $@
decompress: decompress.lds decompress.o LzmaDecode.o
$(LD) -static --gc-sections -no-warn-mismatch -T decompress.lds -o $@ decompress.o LzmaDecode.o
decompress.lds: decompress.lds.in Makefile
@sed "$(SEDFLAGS)" < $< > $@
mrproper: clean
clean:
rm -f loader.gz loader decompress *.lds *.o *.image
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