A default of -z relro (as on Fedora) defeats the deliberate mis-alignment of .got...

POWERPC64_TOC_POINTER_ALIGNMENT

A default of -z relro (as on Fedora) defeats the deliberate
mis-alignment of .got in the testcase.

	* configure.ac (POWERPC64_TOC_POINTER_ALIGNMENT): Pass -z norelro
	to ld.
	* configure: Regenerate.

From-SVN: r230509

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2e20b43..f700f76 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2015-11-18  Alan Modra  <amodra@gmail.com>
+
+       * configure.ac (POWERPC64_TOC_POINTER_ALIGNMENT): Pass -z norelro
+       to ld.
+       * configure: Regenerate.
+
 2015-11-17  Tom de Vries  <tom@codesourcery.com>
 
        * tree-ssa-loop.c (pass_tree_loop_init::execute): Improve comments.

diff --git a/gcc/configure b/gcc/configure
index d5f6dd4..d465597 100755 (executable)
--- a/gcc/configure
+++ b/gcc/configure
@@ -28058,7 +28058,7 @@ _start:
 x:     .quad .TOC.
 EOF
       if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
-         && $gcc_cv_ld $emul_name -o conftest conftest.o > /dev/null 2>&1; then
+         && $gcc_cv_ld $emul_name -z norelro -o conftest conftest.o > /dev/null 2>&1; then
         gcc_cv_ld_toc_align=`$gcc_cv_nm conftest | ${AWK} '/\.TOC\./ { match ($0, "0[[:xdigit:]]*", a); print strtonum ("0x" substr(a[0], length(a[0])-3)) }'`
       fi
       rm -f conftest conftest.o conftest.s

diff --git a/gcc/configure.ac b/gcc/configure.ac
index 34df549..7547e3a 100644 (file)
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -5257,7 +5257,7 @@ _start:
 x:     .quad .TOC.
 EOF
       if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
-         && $gcc_cv_ld $emul_name -o conftest conftest.o > /dev/null 2>&1; then
+         && $gcc_cv_ld $emul_name -z norelro -o conftest conftest.o > /dev/null 2>&1; then
         gcc_cv_ld_toc_align=`$gcc_cv_nm conftest | ${AWK} '/\.TOC\./ { match ($0, "0[[[:xdigit:]]]*", a); print strtonum ("0x" substr(a[[0]], length(a[[0]])-3)) }'`
       fi
       rm -f conftest conftest.o conftest.s