Enforce that vdso does not consume too much from the shared page
Reviewed by: emaste Discussed with: jrtc27 Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 month Differential revision: https://reviews.freebsd.org/D32960
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@ -40,6 +40,12 @@ ${LD} --shared -Bsymbolic -soname="elf-vdso32.so.1" \
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--hash-style=sysv --fatal-warnings --strip-all \
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-o elf-vdso32.so.1 ia32_sigtramp.pico
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if [ "$(wc -c elf-vdso32.so.1 | ${AWK} '{print $1}')" -gt 2048 ]
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then
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echo "elf-vdso32.so.1 too large" 1>&2
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exit 1
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fi
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${CC} -x assembler-with-cpp -DLOCORE -fPIC -nostdinc -c \
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-o elf-vdso32.so.o -I. -I"${S}" -include opt_global.h \
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-DVDSO_NAME=elf_vdso32_so_1 -DVDSO_FILE=elf-vdso32.so.1 \
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@ -49,6 +49,12 @@ ${LD} --shared -Bsymbolic -soname="elf-vdso.so.1" \
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--hash-style=sysv --fatal-warnings --strip-all \
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-o elf-vdso.so.1 sigtramp.pico
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if [ "$(wc -c elf-vdso.so.1 | ${AWK} '{print $1}')" -gt 2048 ]
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then
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echo "elf-vdso.so.1 too large" 1>&2
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exit 1
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fi
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${CC} -x assembler-with-cpp -DLOCORE -fPIC -nostdinc -c \
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-o elf-vdso.so.o -I. -I"${S}" -include opt_global.h \
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-DVDSO_NAME=elf_vdso_so_1 -DVDSO_FILE=elf-vdso.so.1 \
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