From 51fbbb92b44bcc8fea372bb55bda3f26b5857de5 Mon Sep 17 00:00:00 2001
From: David Edelsohn <dje.gcc@gmail.com>
Date: Sat, 26 Sep 2015 15:31:35 +0000
Subject: dwarf2out.c (XCOFF_DEBUGGING_INFO): Default 0 definition.

        * dwarf2out.c (XCOFF_DEBUGGING_INFO): Default 0 definition.
        (HAVE_XCOFF_DWARF_EXTRAS): Default to 0 definition.
        (output_fde): Don't output length for debug_frame on AIX.
        (output_call_frame_info): Don't output length for debug_frame on AIX.
        (have_macinfo): Force to False for XCOFF_DEBUGGING_INFO and not
        HAVE_XCOFF_DWARF_EXTRAS.
        (add_AT_loc_list): Return early if XCOFF_DEBUGGING_INFO and not
        HAVE_XCOFF_DWARF_EXTRAS.
        (output_compilation_unit_header): Don't output length on AIX.
        (output_pubnames): Don't output length on AIX.
        (output_aranges): Delete argument. Compute length locally. Don't
        output length on AIX.
        (output_line_info): Don't output length on AIX.
        (dwarf2out_finish): Don't compute aranges_length.
        * dwarf2asm.c (XCOFF_DEBUGGING_INFO): Default 0 definition.
        (dw2_asm_output_nstring): Emit .byte not .ascii on AIX.
        * config/rs6000/rs6000.c (rs6000_output_dwarf_dtprel): Emit correct
        symbol decoration for AIX.
        (rs6000_xcoff_debug_unwind_info): New.
        (rs6000_xcoff_asm_named_section): Emit .dwsect pseudo-op
        for SECTION_DEBUG.
        (rs6000_xcoff_declare_function_name): Emit different
        .function pseudo-op when DWARF2_DEBUG. Don't call
        xcoffout_declare_function for DWARF2_DEBUG.
        * config/rs6000/xcoff.h (TARGET_DEBUG_UNWIND_INFO):
        Redefine.
        * config/rs6000/aix71.h: New.
        * configure.ac (gcc_cv_as_aix_dwloc): Check AIX as for DWARF
        locations support.
        * configure: Regenerate.
        * config.gcc (powerpc-ibm-aix[789]+): New stanza for AIX 7.1+ with
        DWARF support.

From-SVN: r228167
---
 gcc/configure | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

(limited to 'gcc/configure')

diff --git a/gcc/configure b/gcc/configure
index 608d264..4d6e153 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -26452,6 +26452,46 @@ $as_echo "#define HAVE_AS_REF 1" >>confdefs.h
 fi
 	;;
     esac
+
+    case $target in
+      *-*-aix*)
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for dwarf location lists section support" >&5
+$as_echo_n "checking assembler for dwarf location lists section support... " >&6; }
+if test "${gcc_cv_as_aix_dwloc+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_aix_dwloc=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 21 \) \* 1000 + 0`
+  then gcc_cv_as_aix_dwloc=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    $as_echo '	.dwsect 0xB0000
+          ' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${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_aix_dwloc=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: $gcc_cv_as_aix_dwloc" >&5
+$as_echo "$gcc_cv_as_aix_dwloc" >&6; }
+if test $gcc_cv_as_aix_dwloc = yes; then
+
+$as_echo "#define HAVE_XCOFF_DWARF_EXTRAS 1" >>confdefs.h
+
+fi
+        ;;
+    esac
     ;;
 
   mips*-*-*)
-- 
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