39 lines
973 B
Makefile
39 lines
973 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
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CFLAGS.gcc+= -mpreferred-stack-boundary=2
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CFLAGS+= ${CFLAGS_NO_SIMD} -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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# LD_FLAGS is passed directly to ${LD}, not via ${CC}:
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LD_FLAGS+= -m elf_i386_fbsd
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AFLAGS+= --32
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.endif
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# BTX components
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.if exists(${.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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# compact binary with no padding between text, data, bss
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LDSCRIPT= ${SRCTOP}/sys/boot/i386/boot.ldscript
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# LDFLAGS_BIN=-e start -Ttext ${ORG} -Wl,-T,${LDSCRIPT},-S,--oformat,binary
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# LD_FLAGS_BIN=-static -T ${LDSCRIPT} --gc-sections
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LDFLAGS_BIN=-e start -Ttext ${ORG} -Wl,-N,-S,--oformat,binary
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LD_FLAGS_BIN=-static -N --gc-sections
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.include "../Makefile.inc"
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