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39 lines
986 B
Makefile
39 lines
986 B
Makefile
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LOADADDR = 0x81000000
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RAMSIZE = 0x00100000 # 1MB
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CROSS_COMPILE = mips-linux-
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.S.s:
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$(CPP) $(CFLAGS) $< -o $*.s
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.S.o:
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$(CC) $(CFLAGS) -c $< -o $*.o
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.c.o:
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$(CC) $(CFLAGS) -c $< -o $*.o
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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 = $(CROSS_COMPILE)objdump
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CFLAGS = -fno-builtin -Os -G 0 -mno-abicalls -fno-pic -Wall -DRAMSIZE=${RAMSIZE} -D_LZMA_IN_CB
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# CFLAGS = -fno-builtin -Os -G 0 -mno-abicalls -fno-pic -Wall -DRAMSIZE=${RAMSIZE}
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O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
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# Drop some uninteresting sections in the kernel.
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# This is only relevant for ELF kernels but doesn't hurt a.out
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drop-sections = .reginfo .mdebug .comment
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strip-flags = $(addprefix --remove-section=,$(drop-sections))
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all : lzma.elf
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kernel.o: vmlinux.lzma
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$(LD) -r -b binary --oformat $(O_FORMAT) -o $@ $<
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lzma.elf: start.o decompress.o LzmaDecode.o kernel.o
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$(LD) -s -Tlzma.lds -o $@ $^
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clean:
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rm -f *.o lzma.elf
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