042df2e2da
- It is opt-out for now so as to give it maximum testing, but it may be turned opt-in for stable branches depending on the consensus. You can turn it off with WITHOUT_SSP. - WITHOUT_SSP was previously used to disable the build of GNU libssp. It is harmless to steal the knob as SSP symbols have been provided by libc for a long time, GNU libssp should not have been much used. - SSP is disabled in a few corners such as system bootstrap programs (sys/boot), process bootstrap code (rtld, csu) and SSP symbols themselves. - It should be safe to use -fstack-protector-all to build world, however libc will be automatically downgraded to -fstack-protector because it breaks rtld otherwise. - This option is unavailable on ia64. Enable GCC stack protection (aka Propolice) for kernel: - It is opt-out for now so as to give it maximum testing. - Do not compile your kernel with -fstack-protector-all, it won't work. Submitted by: Jeremie Le Hen <jeremie@le-hen.org>
24 lines
467 B
Makefile
24 lines
467 B
Makefile
# Common defines for all of /sys/boot/pc98/
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#
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# $FreeBSD$
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BINDIR?= /boot
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LOADER_ADDRESS?=0x100000
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CFLAGS+= -ffreestanding -mpreferred-stack-boundary=2 \
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-mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 \
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-Os
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LDFLAGS+= -nostdlib
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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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