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99 lines
2.6 KiB
99 lines
2.6 KiB
#
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# Makefile for Broadcom BCM947XX boards
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#
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# Copyright 2001-2003, Broadcom Corporation
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# All Rights Reserved.
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#
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# THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
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# KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
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# SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
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# FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
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#
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# Copyright 2004 Manuel Novoa III <mjn3@codepoet.org>
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# Modified to support bzip'd kernels.
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# Of course, it would be better to integrate bunzip capability into CFE.
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#
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# Copyright 2005 Oleg I. Vdovikin <oleg@cs.msu.su>
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# Cleaned up, modified for lzma support, removed from kernel
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#
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# Copyright 2007 Gabor Juhos <juhosg at openwrt.org>
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# Modified to support user defined entry point address.
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# Added support for make targets with different names
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#
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LOADADDR := 0x80001000
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LZMA_TEXT_START := 0x80500000
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LZMA_STARTUP_ORG:= 0
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LOADER_DATA :=
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CONFIG_PASS_KARGS :=
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CONFIG_BOARD :=
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CC := $(CROSS_COMPILE)gcc
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LD := $(CROSS_COMPILE)ld
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OBJCOPY := $(CROSS_COMPILE)objcopy
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OBJDUMP := $(CROSS_COMPILE)objdump
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BIN_FLAGS := -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
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CFLAGS = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
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-fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 -mno-abicalls -fno-pic \
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-ffunction-sections -pipe -mlong-calls -fno-common -ffreestanding \
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-fhonour-copts \
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-mabi=32 -march=mips32 -Wa,-32 -Wa,-march=mips32 -Wa,-mips32 -Wa,--trap
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CFLAGS += -DLOADADDR=$(LOADADDR) -D_LZMA_PROB32
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ASFLAGS = $(CFLAGS) -D__ASSEMBLY__ -DLZMA_STARTUP_ORG=$(LZMA_STARTUP_ORG)
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LDFLAGS = -static --gc-sections -no-warn-mismatch
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LDFLAGS += -e startup -T loader.lds -Ttext $(LZMA_TEXT_START)
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O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
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OBJECTS := head.o decompress.o board.o printf.o LzmaDecode.o
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ifneq ($(strip $(LOADER_DATA)),)
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OBJECTS += data.o
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CFLAGS += -DLZMA_WRAPPER=1
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else
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CFLAGS += -D_LZMA_IN_CB
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endif
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ifneq ($(strip $(CONFIG_PASS_KARGS)),)
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CFLAGS += -DCONFIG_PASS_KARGS
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endif
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BOARD_DEF := $(strip $(CONFIG_BOARD))
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BOARD_DEF := $(shell echo $(BOARD_DEF) | tr a-z A-Z | tr -d -)
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ifneq ($(BOARD_DEF),)
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CFLAGS += -DCONFIG_BOARD_$(BOARD_DEF)
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endif
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all: loader.bin
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# Don't build dependencies, this may die if $(CC) isn't gcc
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dep:
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install:
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%.o : %.c
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$(CC) $(CFLAGS) -c -o $@ $<
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%.o : %.S
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$(CC) $(ASFLAGS) -c -o $@ $<
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data.o: $(LOADER_DATA)
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$(LD) -r -b binary --oformat $(O_FORMAT) -T lzma-data.lds -o $@ $<
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loader.bin: loader.elf
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$(OBJCOPY) $(BIN_FLAGS) $< $@
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loader.elf: $(OBJECTS)
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$(LD) $(LDFLAGS) -o $@ $(OBJECTS)
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mrproper: clean
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clean:
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rm -f *.elf *.bin *.o
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