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

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
This commit is contained in:
Alan Modra 2015-11-18 09:54:30 +10:30 committed by Alan Modra
parent 0465369f41
commit 458bc9b1d0
3 changed files with 8 additions and 2 deletions
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6
gcc/ChangeLog
View File

@ -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.

2
gcc/configure vendored
View File

@ -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

2
gcc/configure.ac
View File

@ -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