1#
2# Makefile for Broadcom BCM947XX boards
3#
4# Copyright 2001-2003, Broadcom Corporation
5# All Rights Reserved.
6# 
7# THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
8# KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
9# SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
10# FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
11#
12# Copyright 2004  Manuel Novoa III <mjn3@codepoet.org>
13#   Modified to support bzip'd kernels.
14#   Of course, it would be better to integrate bunzip capability into CFE.
15#
16# Copyright 2005  Oleg I. Vdovikin <oleg@cs.msu.su>
17#   Cleaned up, modified for lzma support, removed from kernel
18#
19# 2009-10-05 - Upgrade to lzma SDK 4.57 by Leonid Lisovskiy
20#
21
22TEXT_START	:= 0x80001000
23BZ_TEXT_START	:= 0x80500000
24
25OBJCOPY		:= $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
26
27CFLAGS		= -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
28		  -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \
29		  -ffunction-sections -pipe -Wa,--trap \
30		  -mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32
31CFLAGS		+= -DLOADADDR=$(TEXT_START) -D_LZMA_IN_CB
32CFLAGS		+= -I$(SRCBASE)/include -I$(SRCBASE)/lzma/C/Compress/Lzma
33
34ASFLAGS		= $(CFLAGS) -D__ASSEMBLY__ -DBZ_TEXT_START=$(BZ_TEXT_START)
35
36SEDFLAGS	:= s/BZ_TEXT_START/$(BZ_TEXT_START)/;s/TEXT_START/$(TEXT_START)/
37
38OBJECTS		:= head.o data.o
39
40vpath %.c $(SRCBASE)/lzma/C/Compress/Lzma
41
42all: loader.gz
43
44# Don't build dependencies, this may die if $(CC) isn't gcc
45dep:
46
47install:
48
49loader.gz: loader
50	gzip -nc9 $< > $@
51
52loader: loader.o
53	$(OBJCOPY) $< $@
54
55loader.o: loader.lds $(OBJECTS)
56	$(LD) -static --gc-sections -no-warn-mismatch -T loader.lds -o $@ $(OBJECTS)
57
58loader.lds: loader.lds.in Makefile
59	@sed "$(SEDFLAGS)" < $< > $@
60
61data.o: data.lds decompress.image
62	$(LD) -no-warn-mismatch -T data.lds -r -o $@ -b binary decompress.image -b elf32-tradlittlemips
63
64data.lds:
65	@echo "SECTIONS { .data : { code_start = .; *(.data) code_stop = .; }}" > $@
66
67decompress.image: decompress
68	$(OBJCOPY) $< $@
69
70decompress: decompress.lds decompress.o LzmaDecode.o
71	$(LD) -static --gc-sections -no-warn-mismatch -T decompress.lds -o $@ decompress.o LzmaDecode.o
72
73decompress.lds: decompress.lds.in Makefile
74	@sed "$(SEDFLAGS)" < $< > $@
75
76mrproper: clean
77
78clean:
79	rm -f loader.gz loader decompress *.lds *.o *.image
80