* configure.ac: Check assembler support for R_PPC64_ENTRY relocation.

	* configure: Regenerate.
	* config.in: Regenerate.
	* config/rs6000/rs6000.c (rs6000_global_entry_point_needed_p): New
	function.
	(rs6000_output_function_prologue): Use it instead of checking
	cfun->machine->r2_setup_needed.  Use internal labels instead of
	GNU as local label extension.  Handle ELFv2 large code model.
	(rs6000_output_mi_thunk): Do not set cfun->machine->r2_setup_needed.
	(rs6000_elf_declare_function_name): Handle ELFv2 large code model.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@231202 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 35 insertions, 0 deletions

diff --git a/gcc/configure b/gcc/configure
index bb5e02bec50..b21c864466d 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -26534,6 +26534,41 @@ $as_echo "#define HAVE_AS_TLS_MARKERS 1" >>confdefs.h
 
 fi
 
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for prologue entry point marker support" >&5
+$as_echo_n "checking assembler for prologue entry point marker support... " >&6; }
+if test "${gcc_cv_as_powerpc_entry_markers+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_powerpc_entry_markers=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 26 \) \* 1000 + 0`
+  then gcc_cv_as_powerpc_entry_markers=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    $as_echo ' .reloc .,R_PPC64_ENTRY; nop' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags -a64 --fatal-warnings -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_powerpc_entry_markers=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_powerpc_entry_markers" >&5
+$as_echo "$gcc_cv_as_powerpc_entry_markers" >&6; }
+if test $gcc_cv_as_powerpc_entry_markers = yes; then
+
+$as_echo "#define HAVE_AS_ENTRY_MARKERS 1" >>confdefs.h
+
+fi
+
     case $target in
       *-*-aix*)
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .ref support" >&5