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25 lines
703 B
Makefile
25 lines
703 B
Makefile
# To specify cross compiler prefix, use CROSS_PREFIX=
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# $ make CROSS_PREFIX=s390x-linux-gnu-
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.PHONY: all clean
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all: a-b-bios.h
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fwdir=../../../pc-bios/s390-ccw
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CFLAGS+=-ffreestanding -fno-delete-null-pointer-checks -fPIE -Os \
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-msoft-float -march=z900 -fno-asynchronous-unwind-tables -Wl,-pie \
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-Wl,--build-id=none -nostdlib
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a-b-bios.h: s390x.elf
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echo "$$__note" > header.tmp
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xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
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mv header.tmp $@
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# We use common-page-size=16 to avoid big padding in the ELF file
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s390x.elf: a-b-bios.c
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$(CROSS_PREFIX)gcc $(CFLAGS) -I$(fwdir) $(fwdir)/start.S \
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$(fwdir)/sclp.c -Wl,-zcommon-page-size=16 -o $@ $<
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$(CROSS_PREFIX)strip $@
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clean:
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@rm -rf *.elf *.o
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