* doc/invoke.texi: Add mcmodel to powerpc options.

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

diff --git a/gcc/configure b/gcc/configure
index 50baf17..d1dcf89 100755 (executable)
--- a/gcc/configure
+++ b/gcc/configure
@@ -24844,6 +24844,43 @@ $as_echo "$gcc_cv_ld_no_dot_syms" >&6; }
 $as_echo "#define HAVE_LD_NO_DOT_SYMS 1" >>confdefs.h
 
     fi
 $as_echo "#define HAVE_LD_NO_DOT_SYMS 1" >>confdefs.h
 
     fi

+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker large toc support" >&5
+$as_echo_n "checking linker large toc support... " >&6; }
+if test "${gcc_cv_ld_large_toc+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_ld_large_toc=no
+    if test $in_tree_ld = yes ; then
+      if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2; then
+        gcc_cv_ld_large_toc=yes
+      fi
+    elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
+      cat > conftest.s <<EOF
+       .section ".tbss","awT",@nobits
+       .align 3
+ie0:   .space 8
+       .global _start
+       .text
+_start:
+       addis 9,13,ie0@got@tprel@ha
+       ld 9,ie0@got@tprel@l(9)
+EOF
+      if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
+         && $gcc_cv_ld -melf64ppc --no-toc-sort -o conftest conftest.o > /dev/null 2>&1; then
+        gcc_cv_ld_large_toc=yes
+      fi
+      rm -f conftest conftest.o conftest.s
+    fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_ld_large_toc" >&5
+$as_echo "$gcc_cv_ld_large_toc" >&6; }
+    if test x"$gcc_cv_ld_large_toc" = xyes; then
+
+$as_echo "#define HAVE_LD_LARGE_TOC 1" >>confdefs.h
+
+    fi

     ;;
 esac
 
     ;;
 esac