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configure.ac (gcc_cv_as_cfi_directive): Disable cfi directives unless GCC and gas agree on using read-only .eh_frame...

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* configure.ac (gcc_cv_as_cfi_directive) [i?86-*-solaris*]:
	Disable cfi directives unless GCC and gas agree on using read-only
	.eh_frame sections for 64-bit.
	* configure: Regenerate.

From-SVN: r157151
This commit is contained in:
Rainer Orth 2010-03-01 18:09:19 +00:00 committed by Rainer Orth
parent 12f9ddbc7d
commit eb2573eeb4
3 changed files with 41 additions and 2 deletions

7
gcc/ChangeLog

@ -1,3 +1,10 @@
2010-03-01 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* configure.ac (gcc_cv_as_cfi_directive) [i?86-*-solaris*]:
Disable cfi directives unless GCC and gas agree on using read-only
.eh_frame sections for 64-bit.
* configure: Regenerate.
2010-03-01 Richard Guenther <rguenther@suse.de>
PR tree-optimization/43220

18
gcc/configure vendored

@ -21386,7 +21386,23 @@ else
sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
gcc_cv_as_cfi_directive=no
else
gcc_cv_as_cfi_directive=yes
case "$target" in
i?86-*-solaris2.1[0-9]*)
# On Solaris/x86, make sure that GCC and gas agree on using
# read-only .eh_frame sections for 64-bit.
if $gcc_cv_as --64 -o conftest.o conftest.s > /dev/null 2>&1 && \
$gcc_cv_objdump -h conftest.o 2>/dev/null | \
sed -e /.eh_frame/!d -e N | \
grep READONLY > /dev/null; then
gcc_cv_as_cfi_directive=yes
else
gcc_cv_as_cfi_directive=no
fi
;;
*)
gcc_cv_as_cfi_directive=yes
;;
esac
fi
else
# no objdump, err on the side of caution

18
gcc/configure.ac

@ -2272,7 +2272,23 @@ gcc_GAS_CHECK_FEATURE([cfi directives], gcc_cv_as_cfi_directive,
sed -e /.eh_frame/!d -e N | grep READONLY > /dev/null; then
gcc_cv_as_cfi_directive=no
else
gcc_cv_as_cfi_directive=yes
case "$target" in
i?86-*-solaris2.1[[0-9]]*)
# On Solaris/x86, make sure that GCC and gas agree on using
# read-only .eh_frame sections for 64-bit.
if $gcc_cv_as --64 -o conftest.o conftest.s > /dev/null 2>&1 && \
$gcc_cv_objdump -h conftest.o 2>/dev/null | \
sed -e /.eh_frame/!d -e N | \
grep READONLY > /dev/null; then
gcc_cv_as_cfi_directive=yes
else
gcc_cv_as_cfi_directive=no
fi
;;
*)
gcc_cv_as_cfi_directive=yes
;;
esac
fi
else
# no objdump, err on the side of caution