* configure.ac (gcc_cv_as_cfi_directive) [i?86-*-solaris*]:

[pf3gnuchains/gcc-fork.git] / gcc / configure.ac

diff --git a/gcc/configure.ac b/gcc/configure.ac
index fe1ac55..ddfbc7a 100644 (file)
--- a/gcc/configure.ac
+++ b/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