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36 lines
1.2 KiB
Plaintext
36 lines
1.2 KiB
Plaintext
dnl
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dnl Check for -z now and -z relro linker flags
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dnl
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dnl Copyright (C) 2013 Red Hat, Inc.
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dnl
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dnl This library is free software; you can redistribute it and/or
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dnl modify it under the terms of the GNU Lesser General Public
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dnl License as published by the Free Software Foundation; either
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dnl version 2.1 of the License, or (at your option) any later version.
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dnl
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dnl This library is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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dnl Lesser General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU Lesser General Public
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dnl License along with this library. If not, see
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dnl <http://www.gnu.org/licenses/>.
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dnl
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AC_DEFUN([LIBVIRT_LINKER_RELRO],[
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AC_MSG_CHECKING([for how to force completely read-only GOT table])
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RELRO_LDFLAGS=
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ld_help=`$LD --help 2>&1`
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case $ld_help in
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*"-z relro"*) RELRO_LDFLAGS="-Wl,-z -Wl,relro" ;;
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esac
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case $ld_help in
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*"-z now"*) RELRO_LDFLAGS="$RELRO_LDFLAGS -Wl,-z -Wl,now" ;;
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esac
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AC_SUBST([RELRO_LDFLAGS])
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AC_MSG_RESULT([$RELRO_LDFLAGS])
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])
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