881a94fab8
.. so that consistent compilation algorithms are used for both architectures as in practice the binaries are expected to be interchangeable (for time being). Previously i386 used default setting which were equivalent to -march=i486 -mtune=generic. The only difference is using smaller but slower "leave" instructions. Discussed with: jhb, dim MFC after: 29 days
30 lines
596 B
Makefile
30 lines
596 B
Makefile
# Common defines for all of /sys/boot/i386/
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#
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# $FreeBSD$
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BINDIR?= /boot
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LOADER_ADDRESS?=0x200000
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CFLAGS+= -march=i386 -ffreestanding -mpreferred-stack-boundary=2 \
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-mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -msoft-float
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LDFLAGS+= -nostdlib
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.if ${MACHINE_CPUARCH} == "amd64"
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CFLAGS+= -m32
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ACFLAGS+= -m32
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LDFLAGS+= -m elf_i386_fbsd
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AFLAGS+= --32
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.endif
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# BTX components
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.if exists(${.OBJDIR}/../btx)
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BTXDIR= ${.OBJDIR}/../btx
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.else
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BTXDIR= ${.CURDIR}/../btx
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.endif
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BTXLDR= ${BTXDIR}/btxldr/btxldr
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BTXKERN= ${BTXDIR}/btx/btx
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BTXCRT= ${BTXDIR}/lib/crt0.o
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.include "../Makefile.inc"
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