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.ac | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'gcc/configure.ac')

diff --git a/gcc/configure.ac b/gcc/configure.ac
index 65b5d70..451acfa 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -4328,6 +4328,18 @@ LCF0:
     esac
     ;;
 
+    case $target in
+      *-*-aix*)
+	gcc_GAS_CHECK_FEATURE([dwarf location lists section support],
+	  gcc_cv_as_aix_dwloc, [2,21,0],,
+	  [	.dwsect 0xB0000
+	  ],,
+	  [AC_DEFINE(HAVE_XCOFF_DWARF_EXTRAS, 1,
+	    [Define if your assembler supports .dwsect 0xB0000])])
+	;;
+    esac
+    ;;
+
   mips*-*-*)
     gcc_GAS_CHECK_FEATURE([explicit relocation support],
       gcc_cv_as_mips_explicit_relocs, [2,14,0],,
@@ -4336,6 +4348,7 @@ LCF0:
        then target_cpu_default=MASK_EXPLICIT_RELOCS
        else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
        fi])
+
     gcc_GAS_CHECK_FEATURE([-mno-shared support],
       gcc_cv_as_mips_no_shared, [2,16,0], [-mno-shared], [nop],,
       [AC_DEFINE(HAVE_AS_NO_SHARED, 1,
-- 
cgit v1.1