6b81302e38
This flag will make GCC 8 touch all space allocated using alloca(3) and thus detect code jumping over the "stack gap".
28 lines
1.1 KiB
Bash
28 lines
1.1 KiB
Bash
# Enable as-needed by default.
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LDFLAGS="-Wl,--as-needed ${LDFLAGS}"
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if [ -z "$nopie" ]; then
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# Our compilers use --enable-default-pie and --enable-default-ssp,
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# but the bootstrap host compiler may not, force them.
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if [ -z "$CHROOT_READY" ]; then
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CFLAGS="-fstack-protector-strong -D_FORTIFY_SOURCE=2 ${CFLAGS}"
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CXXFLAGS="-fstack-protector-strong -D_FORTIFY_SOURCE=2 ${CXXFLAGS}"
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_GCCSPECSDIR=${XBPS_COMMONDIR}/environment/configure/gccspecs
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case "$XBPS_TARGET_MACHINE" in
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mips*) _GCCSPECSFILE="${_GCCSPECSDIR}/hardened-mips-cc1" ;;
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*) _GCCSPECSFILE="${_GCCSPECSDIR}/hardened-cc1" ;;
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esac
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CFLAGS="-specs=${_GCCSPECSFILE} ${CFLAGS}"
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CXXFLAGS="-specs=${_GCCSPECSFILE} ${CXXFLAGS}"
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LDFLAGS="-specs=${_GCCSPECSDIR}/hardened-ld -Wl,-z,relro -Wl,-z,now ${LDFLAGS}"
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else
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# Enable FORITFY_SOURCE=2
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CFLAGS="-fstack-clash-protection -D_FORTIFY_SOURCE=2 ${CFLAGS}"
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CXXFLAGS="-fstack-clash-protection -D_FORTIFY_SOURCE=2 ${CXXFLAGS}"
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LDFLAGS="-Wl,-z,relro -Wl,-z,now ${LDFLAGS}"
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fi
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else
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CFLAGS="-fno-PIE ${CFLAGS}"
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CXXFLAGS="-fno-PIE ${CFLAGS}"
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LDFLAGS="-no-pie ${LDFLAGS}"
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fi
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