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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 21:11:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-13 21:11:59 +0000
commit3cd01b932e1c85394272ae64fae67ebeda92fb00 (patch)
treec5a3115d710afc1879ddea5349362a2bc651733c /m4/pdns_relro.m4
parentInitial commit. (diff)
downloaddnsdist-3cd01b932e1c85394272ae64fae67ebeda92fb00.tar.xz
dnsdist-3cd01b932e1c85394272ae64fae67ebeda92fb00.zip
Adding upstream version 1.8.3.upstream/1.8.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'm4/pdns_relro.m4')
-rw-r--r--m4/pdns_relro.m437
1 files changed, 37 insertions, 0 deletions
diff --git a/m4/pdns_relro.m4 b/m4/pdns_relro.m4
new file mode 100644
index 0000000..4f93629
--- /dev/null
+++ b/m4/pdns_relro.m4
@@ -0,0 +1,37 @@
+dnl
+dnl Check for -z now and -z relro linker flags
+dnl
+dnl Copyright (C) 2013 Red Hat, Inc.
+dnl
+dnl This library is free software; you can redistribute it and/or
+dnl modify it under the terms of the GNU Lesser General Public
+dnl License as published by the Free Software Foundation; either
+dnl version 2.1 of the License, or (at your option) any later version.
+dnl
+dnl This library is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+dnl Lesser General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU Lesser General Public
+dnl License along with this library. If not, see
+dnl <http://www.gnu.org/licenses/>.
+dnl
+
+AC_DEFUN([AC_LD_RELRO],[
+ AC_MSG_CHECKING([for how to force completely read-only GOT table])
+
+ RELRO_LDFLAGS=
+ ld_help=`$CXX -Wl,-help 2>&1`
+ case $ld_help in
+ *"-z relro"*) RELRO_LDFLAGS="-Wl,-z -Wl,relro" ;;
+ esac
+ case $ld_help in
+ *"-z now"*) RELRO_LDFLAGS="$RELRO_LDFLAGS -Wl,-z -Wl,now" ;;
+ esac
+ AC_SUBST([RELRO_LDFLAGS])
+ AS_IF([test "x$RELRO_LDFLAGS" != "x"],
+ [AC_MSG_RESULT([$RELRO_LDFLAGS])],
+ [AC_MSG_RESULT([unknown])]
+ )
+])