X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fdwarf2asm.c;h=516a26004f0b115a738cd1e18d49858987ef3bbb;hb=6fc76bb02fac69d05787ea749a9cf8230b59afed;hp=2f43a615b1f68f417ba1737af5ef41b0ed412a52;hpb=104eedee287e8053a2d5a39db5768256862066d6;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/dwarf2asm.c b/gcc/dwarf2asm.c
index 2f43a615b1f..516a26004f0 100644
--- a/gcc/dwarf2asm.c
+++ b/gcc/dwarf2asm.c
@@ -1,11 +1,12 @@
 /* Dwarf2 assembler output helper routines.
-   Copyright (C) 2001 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+   Free Software Foundation, Inc.
 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
@@ -14,17 +15,19 @@ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
 
 
 #include "config.h"
 #include "system.h"
+#include "coretypes.h"
+#include "tm.h"
 #include "flags.h"
 #include "tree.h"
 #include "rtl.h"
 #include "output.h"
+#include "target.h"
 #include "dwarf2asm.h"
 #include "dwarf2.h"
 #include "splay-tree.h"
@@ -37,67 +40,75 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #define ASM_COMMENT_START ";#"
 #endif
 
-/* We don't have unaligned support, let's hope the normal output works for
-   .debug_frame.  But we know it won't work for .debug_info.  */
-#if !defined(UNALIGNED_INT_ASM_OP) && defined(DWARF2_DEBUGGING_INFO)
- #error DWARF2_DEBUGGING_INFO requires UNALIGNED_INT_ASM_OP.
-#endif
-
 
-/* Despite the fact that assemble_integer handles unaligned data,
-   continue emitting things by hand when possible, since that makes
-   the assembler commentary come out prettier.  */
-#ifdef UNALIGNED_INT_ASM_OP
-static const char * unaligned_integer_asm_op  PARAMS ((int));
-
-static inline const char *
-unaligned_integer_asm_op (size)
-     int size;
+/* Output an unaligned integer with the given value and size.  Prefer not
+   to print a newline, since the caller may want to add a comment.  */
+
+void
+dw2_assemble_integer (int size, rtx x)
 {
-  const char *op;
-  switch (size)
+  const char *op = integer_asm_op (size, FALSE);
+
+  if (op)
     {
-    case 1:
-      op = ASM_BYTE_OP;
-      break;
-    case 2:
-      op = UNALIGNED_SHORT_ASM_OP;
-      break;
-    case 4:
-      op = UNALIGNED_INT_ASM_OP;
-      break;
-    case 8:
-#ifdef UNALIGNED_DOUBLE_INT_ASM_OP
-      op = UNALIGNED_DOUBLE_INT_ASM_OP;
-      break;
-#endif
-    default:
-      abort ();
+      fputs (op, asm_out_file);
+      if (CONST_INT_P (x))
+	fprintf (asm_out_file, HOST_WIDE_INT_PRINT_HEX,
+		 (unsigned HOST_WIDE_INT) INTVAL (x));
+      else
+	output_addr_const (asm_out_file, x);
+    }
+  else
+    assemble_integer (x, size, BITS_PER_UNIT, 1);
+}
+
+
+/* Output a value of a given size in target byte order.  */
+
+void
+dw2_asm_output_data_raw (int size, unsigned HOST_WIDE_INT value)
+{
+  unsigned char bytes[8];
+  int i;
+
+  for (i = 0; i < 8; ++i)
+    {
+      bytes[i] = value & 0xff;
+      value >>= 8;
+    }
+
+  if (BYTES_BIG_ENDIAN)
+    {
+      for (i = size - 1; i > 0; --i)
+	fprintf (asm_out_file, "%#x,", bytes[i]);
+      fprintf (asm_out_file, "%#x", bytes[0]);
+    }
+  else
+    {
+      for (i = 0; i < size - 1; ++i)
+	fprintf (asm_out_file, "%#x,", bytes[i]);
+      fprintf (asm_out_file, "%#x", bytes[i]);
     }
-  return op;
 }
-#endif /* UNALIGNED_INT_ASM_OP */
 
-/* Output an immediate constant in a given size.  */
+/* Output an immediate constant in a given SIZE in bytes.  */
 
 void
-dw2_asm_output_data VPARAMS ((int size, unsigned HOST_WIDE_INT value,
-			      const char *comment, ...))
+dw2_asm_output_data (int size, unsigned HOST_WIDE_INT value,
+		     const char *comment, ...)
 {
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, int, size);
-  VA_FIXEDARG (ap, unsigned HOST_WIDE_INT, value);
-  VA_FIXEDARG (ap, const char *, comment);
+  va_list ap;
+  const char *op = integer_asm_op (size, FALSE);
+
+  va_start (ap, comment);
 
   if (size * 8 < HOST_BITS_PER_WIDE_INT)
-    value &= ~(~(unsigned HOST_WIDE_INT)0 << (size * 8));
+    value &= ~(~(unsigned HOST_WIDE_INT) 0 << (size * 8));
 
-#ifdef UNALIGNED_INT_ASM_OP
-  fputs (unaligned_integer_asm_op (size), asm_out_file);
-  fprintf (asm_out_file, HOST_WIDE_INT_PRINT_HEX, value);
-#else
-  assemble_integer (GEN_INT (value), size, BITS_PER_UNIT, 1);
-#endif
+  if (op)
+    fprintf (asm_out_file, "%s" HOST_WIDE_INT_PRINT_HEX, op, value);
+  else
+    assemble_integer (GEN_INT (value), size, BITS_PER_UNIT, 1);
 
   if (flag_debug_asm && comment)
     {
@@ -106,7 +117,7 @@ dw2_asm_output_data VPARAMS ((int size, unsigned HOST_WIDE_INT value,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
 /* Output the difference between two symbols in a given size.  */
@@ -116,26 +127,21 @@ dw2_asm_output_data VPARAMS ((int size, unsigned HOST_WIDE_INT value,
    symbol must appear after both symbols are defined.  */
 
 void
-dw2_asm_output_delta VPARAMS ((int size, const char *lab1, const char *lab2,
-			       const char *comment, ...))
+dw2_asm_output_delta (int size, const char *lab1, const char *lab2,
+		      const char *comment, ...)
 {
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, int, size);
-  VA_FIXEDARG (ap, const char *, lab1);
-  VA_FIXEDARG (ap, const char *, lab2);
-  VA_FIXEDARG (ap, const char *, comment);
-
-#ifdef UNALIGNED_INT_ASM_OP
-  fputs (unaligned_integer_asm_op (size), asm_out_file);
-  assemble_name (asm_out_file, lab1);
-  fputc ('-', asm_out_file);
-  assemble_name (asm_out_file, lab2);
+  va_list ap;
+
+  va_start (ap, comment);
+
+#ifdef ASM_OUTPUT_DWARF_DELTA
+  ASM_OUTPUT_DWARF_DELTA (asm_out_file, size, lab1, lab2);
 #else
-  assemble_integer (gen_rtx_MINUS (Pmode, gen_rtx_SYMBOL_REF (Pmode, lab1),
-				   gen_rtx_SYMBOL_REF (Pmode, lab2)),
-		    size, BITS_PER_UNIT, 1);
+  dw2_assemble_integer (size,
+			gen_rtx_MINUS (Pmode,
+				       gen_rtx_SYMBOL_REF (Pmode, lab1),
+				       gen_rtx_SYMBOL_REF (Pmode, lab2)));
 #endif
-
   if (flag_debug_asm && comment)
     {
       fprintf (asm_out_file, "\t%s ", ASM_COMMENT_START);
@@ -143,33 +149,29 @@ dw2_asm_output_delta VPARAMS ((int size, const char *lab1, const char *lab2,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
-/* Output a section-relative reference to a label.  In general this
-   can only be done for debugging symbols.  E.g. on most targets with
-   the GNU linker, this is accomplished with a direct reference and
-   the knowledge that the debugging section will be placed at VMA 0.
-   Some targets have special relocations for this that we must use.  */
+/* Output a section-relative reference to a LABEL, which was placed in
+   BASE.  In general this can only be done for debugging symbols.
+   E.g. on most targets with the GNU linker, this is accomplished with
+   a direct reference and the knowledge that the debugging section
+   will be placed at VMA 0.  Some targets have special relocations for
+   this that we must use.  */
 
 void
-dw2_asm_output_offset VPARAMS ((int size, const char *label,
-			       const char *comment, ...))
+dw2_asm_output_offset (int size, const char *label,
+		       section *base ATTRIBUTE_UNUSED,
+		       const char *comment, ...)
 {
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, int, size);
-  VA_FIXEDARG (ap, const char *, label);
-  VA_FIXEDARG (ap, const char *, comment);
+  va_list ap;
+
+  va_start (ap, comment);
 
 #ifdef ASM_OUTPUT_DWARF_OFFSET
-  ASM_OUTPUT_DWARF_OFFSET (asm_out_file, size, label);
+  ASM_OUTPUT_DWARF_OFFSET (asm_out_file, size, label, base);
 #else
-#ifdef UNALIGNED_INT_ASM_OP
-  fputs (unaligned_integer_asm_op (size), asm_out_file);
-  assemble_name (asm_out_file, label);
-#else
-  assemble_integer (gen_rtx_SYMBOL_REF (Pmode, label), size, BITS_PER_UNIT, 1);
-#endif
+  dw2_assemble_integer (size, gen_rtx_SYMBOL_REF (Pmode, label));
 #endif
 
   if (flag_debug_asm && comment)
@@ -179,32 +181,30 @@ dw2_asm_output_offset VPARAMS ((int size, const char *label,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
+#if 0
+
 /* Output a self-relative reference to a label, possibly in a
    different section or object file.  */
 
 void
-dw2_asm_output_pcrel VPARAMS ((int size, const char *label,
-			       const char *comment, ...))
+dw2_asm_output_pcrel (int size ATTRIBUTE_UNUSED,
+		      const char *label ATTRIBUTE_UNUSED,
+		      const char *comment, ...)
 {
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, int, size);
-  VA_FIXEDARG (ap, const char *, label);
-  VA_FIXEDARG (ap, const char *, comment);
+  va_list ap;
+
+  va_start (ap, comment);
 
 #ifdef ASM_OUTPUT_DWARF_PCREL
   ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, label);
 #else
-#ifdef UNALIGNED_INT_ASM_OP
-  fputs (unaligned_integer_asm_op (size), asm_out_file);
-  assemble_name (asm_out_file, label);
-  fputc ('-', asm_out_file);
-  fputc ('.', asm_out_file);
-#else
-  abort ();
-#endif
+  dw2_assemble_integer (size,
+			gen_rtx_MINUS (Pmode,
+				       gen_rtx_SYMBOL_REF (Pmode, label),
+				       pc_rtx));
 #endif
 
   if (flag_debug_asm && comment)
@@ -214,26 +214,21 @@ dw2_asm_output_pcrel VPARAMS ((int size, const char *label,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
+#endif /* 0 */
 
 /* Output an absolute reference to a label.  */
 
 void
-dw2_asm_output_addr VPARAMS ((int size, const char *label,
-			      const char *comment, ...))
+dw2_asm_output_addr (int size, const char *label,
+		     const char *comment, ...)
 {
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, int, size);
-  VA_FIXEDARG (ap, const char *, label);
-  VA_FIXEDARG (ap, const char *, comment);
-
-#ifdef UNALIGNED_INT_ASM_OP
-  fputs (unaligned_integer_asm_op (size), asm_out_file);
-  assemble_name (asm_out_file, label);
-#else
-  assemble_integer (gen_rtx_SYMBOL_REF (Pmode, label), size, BITS_PER_UNIT, 1);
-#endif
+  va_list ap;
+
+  va_start (ap, comment);
+
+  dw2_assemble_integer (size, gen_rtx_SYMBOL_REF (Pmode, label));
 
   if (flag_debug_asm && comment)
     {
@@ -242,26 +237,20 @@ dw2_asm_output_addr VPARAMS ((int size, const char *label,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
 /* Similar, but use an RTX expression instead of a text label.  */
 
 void
-dw2_asm_output_addr_rtx VPARAMS ((int size, rtx addr,
-				  const char *comment, ...))
+dw2_asm_output_addr_rtx (int size, rtx addr,
+			 const char *comment, ...)
 {
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, int, size);
-  VA_FIXEDARG (ap, rtx, addr);
-  VA_FIXEDARG (ap, const char *, comment);
-
-#ifdef UNALIGNED_INT_ASM_OP
-  fputs (unaligned_integer_asm_op (size), asm_out_file);
-  output_addr_const (asm_out_file, addr);
-#else
-  assemble_integer (addr, size, BITS_PER_UNIT, 1);
-#endif
+  va_list ap;
+
+  va_start (ap, comment);
+
+  dw2_assemble_integer (size, addr);
 
   if (flag_debug_asm && comment)
     {
@@ -270,19 +259,24 @@ dw2_asm_output_addr_rtx VPARAMS ((int size, rtx addr,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
+/* Output the first ORIG_LEN characters of STR as a string.
+   If ORIG_LEN is equal to -1, ignore this parameter and output
+   the entire STR instead.
+   If COMMENT is not NULL and comments in the debug information
+   have been requested by the user, append the given COMMENT
+   to the generated output.  */
+
 void
-dw2_asm_output_nstring VPARAMS ((const char *str, size_t orig_len,
-				 const char *comment, ...))
+dw2_asm_output_nstring (const char *str, size_t orig_len,
+			const char *comment, ...)
 {
   size_t i, len;
+  va_list ap;
 
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, const char *, str);
-  VA_FIXEDARG (ap, size_t, len);
-  VA_FIXEDARG (ap, const char *, comment);
+  va_start (ap, comment);
 
   len = orig_len;
 
@@ -314,24 +308,22 @@ dw2_asm_output_nstring VPARAMS ((const char *str, size_t orig_len,
 	len += 1;
       ASM_OUTPUT_ASCII (asm_out_file, str, len);
       if (orig_len != (size_t) -1)
-	fprintf (asm_out_file, "%s0\n", ASM_BYTE_OP);
+	assemble_integer (const0_rtx, 1, BITS_PER_UNIT, 1);
     }
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
 
 /* Return the size of an unsigned LEB128 quantity.  */
 
 int
-size_of_uleb128 (value)
-     unsigned HOST_WIDE_INT value;
+size_of_uleb128 (unsigned HOST_WIDE_INT value)
 {
-  int size = 0, byte;
+  int size = 0;
 
   do
     {
-      byte = (value & 0x7f);
       value >>= 7;
       size += 1;
     }
@@ -343,8 +335,7 @@ size_of_uleb128 (value)
 /* Return the size of a signed LEB128 quantity.  */
 
 int
-size_of_sleb128 (value)
-     HOST_WIDE_INT value;
+size_of_sleb128 (HOST_WIDE_INT value)
 {
   int size = 0, byte;
 
@@ -361,12 +352,11 @@ size_of_sleb128 (value)
 }
 
 /* Given an encoding, return the number of bytes the format occupies.
-   This is only defined for fixed-size encodings, and so does not 
+   This is only defined for fixed-size encodings, and so does not
    include leb128.  */
 
 int
-size_of_encoded_value (encoding)
-     int encoding;
+size_of_encoded_value (int encoding)
 {
   if (encoding == DW_EH_PE_omit)
     return 0;
@@ -381,15 +371,15 @@ size_of_encoded_value (encoding)
       return 4;
     case DW_EH_PE_udata8:
       return 8;
+    default:
+      gcc_unreachable ();
     }
-  abort ();
 }
 
 /* Yield a name for a given pointer encoding.  */
 
 const char *
-eh_data_format_name (format)
-     int format;
+eh_data_format_name (int format)
 {
 #if HAVE_DESIGNATED_INITIALIZERS
 #define S(p, v)		[p] = v,
@@ -456,6 +446,8 @@ eh_data_format_name (format)
   S(DW_EH_PE_sdata4 | DW_EH_PE_funcrel, "funcrel sdata4")
   S(DW_EH_PE_sdata8 | DW_EH_PE_funcrel, "funcrel sdata8")
 
+  S(DW_EH_PE_indirect | DW_EH_PE_absptr, "indirect absolute")
+
   S(DW_EH_PE_indirect | DW_EH_PE_absptr | DW_EH_PE_pcrel,
     "indirect pcrel")
   S(DW_EH_PE_indirect | DW_EH_PE_uleb128 | DW_EH_PE_pcrel,
@@ -535,28 +527,47 @@ eh_data_format_name (format)
 #if HAVE_DESIGNATED_INITIALIZERS
   };
 
-  if (format < 0 || format > 0xff || format_names[format] == NULL)
-    abort ();
+  gcc_assert (format >= 0 && format < 0x100 && format_names[format]);
+
   return format_names[format];
 #else
   }
-  abort ();
+  gcc_unreachable ();
 #endif
 }
 
+/* Output an unsigned LEB128 quantity, but only the byte values.  */
+
+void
+dw2_asm_output_data_uleb128_raw (unsigned HOST_WIDE_INT value)
+{
+  while (1)
+    {
+      int byte = (value & 0x7f);
+      value >>= 7;
+      if (value != 0)
+	/* More bytes to follow.  */
+	byte |= 0x80;
+
+      fprintf (asm_out_file, "%#x", byte);
+      if (value == 0)
+	break;
+      fputc (',', asm_out_file);
+    }
+}
+
 /* Output an unsigned LEB128 quantity.  */
 
 void
-dw2_asm_output_data_uleb128 VPARAMS ((unsigned HOST_WIDE_INT value,
-				      const char *comment, ...))
+dw2_asm_output_data_uleb128 (unsigned HOST_WIDE_INT value,
+			     const char *comment, ...)
 {
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, unsigned HOST_WIDE_INT, value);
-  VA_FIXEDARG (ap, const char *, comment);
+  va_list ap;
+
+  va_start (ap, comment);
 
 #ifdef HAVE_AS_LEB128
-  fputs ("\t.uleb128 ", asm_out_file);
-  fprintf (asm_out_file, HOST_WIDE_INT_PRINT_HEX, value);
+  fprintf (asm_out_file, "\t.uleb128 " HOST_WIDE_INT_PRINT_HEX , value);
 
   if (flag_debug_asm && comment)
     {
@@ -566,8 +577,10 @@ dw2_asm_output_data_uleb128 VPARAMS ((unsigned HOST_WIDE_INT value,
 #else
   {
     unsigned HOST_WIDE_INT work = value;
+    const char *byte_op = targetm.asm_out.byte_op;
 
-    fputs (ASM_BYTE_OP, asm_out_file);
+    if (byte_op)
+      fputs (byte_op, asm_out_file);
     do
       {
 	int byte = (work & 0x7f);
@@ -576,16 +589,21 @@ dw2_asm_output_data_uleb128 VPARAMS ((unsigned HOST_WIDE_INT value,
 	  /* More bytes to follow.  */
 	  byte |= 0x80;
 
-	fprintf (asm_out_file, "0x%x", byte);
-	if (work != 0)
-	  fputc (',', asm_out_file);
+	if (byte_op)
+	  {
+	    fprintf (asm_out_file, "%#x", byte);
+	    if (work != 0)
+	      fputc (',', asm_out_file);
+	  }
+	else
+	  assemble_integer (GEN_INT (byte), 1, BITS_PER_UNIT, 1);
       }
     while (work != 0);
 
   if (flag_debug_asm)
     {
-      fprintf (asm_out_file, "\t%s uleb128 ", ASM_COMMENT_START);
-      fprintf (asm_out_file, HOST_WIDE_INT_PRINT_HEX, value);
+      fprintf (asm_out_file, "\t%s uleb128 " HOST_WIDE_INT_PRINT_HEX,
+	       ASM_COMMENT_START, value);
       if (comment)
 	{
 	  fputs ("; ", asm_out_file);
@@ -596,22 +614,44 @@ dw2_asm_output_data_uleb128 VPARAMS ((unsigned HOST_WIDE_INT value,
 #endif
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
+}
+
+/* Output an signed LEB128 quantity, but only the byte values.  */
+
+void
+dw2_asm_output_data_sleb128_raw (HOST_WIDE_INT value)
+{
+  int byte, more;
+
+  while (1)
+    {
+      byte = (value & 0x7f);
+      value >>= 7;
+      more = !((value == 0 && (byte & 0x40) == 0)
+		|| (value == -1 && (byte & 0x40) != 0));
+      if (more)
+	byte |= 0x80;
+
+      fprintf (asm_out_file, "%#x", byte);
+      if (!more)
+	break;
+      fputc (',', asm_out_file);
+    }
 }
 
-/* Output an signed LEB128 quantity.  */
+/* Output a signed LEB128 quantity.  */
 
 void
-dw2_asm_output_data_sleb128 VPARAMS ((HOST_WIDE_INT value,
-				      const char *comment, ...))
+dw2_asm_output_data_sleb128 (HOST_WIDE_INT value,
+			     const char *comment, ...)
 {
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, HOST_WIDE_INT, value);
-  VA_FIXEDARG (ap, const char *, comment);
+  va_list ap;
+
+  va_start (ap, comment);
 
 #ifdef HAVE_AS_LEB128
-  fputs ("\t.sleb128 ", asm_out_file);
-  fprintf (asm_out_file, HOST_WIDE_INT_PRINT_DEC, value);
+  fprintf (asm_out_file, "\t.sleb128 " HOST_WIDE_INT_PRINT_DEC, value);
 
   if (flag_debug_asm && comment)
     {
@@ -622,8 +662,10 @@ dw2_asm_output_data_sleb128 VPARAMS ((HOST_WIDE_INT value,
   {
     HOST_WIDE_INT work = value;
     int more, byte;
+    const char *byte_op = targetm.asm_out.byte_op;
 
-    fputs (ASM_BYTE_OP, asm_out_file);
+    if (byte_op)
+      fputs (byte_op, asm_out_file);
     do
       {
 	byte = (work & 0x7f);
@@ -634,16 +676,21 @@ dw2_asm_output_data_sleb128 VPARAMS ((HOST_WIDE_INT value,
 	if (more)
 	  byte |= 0x80;
 
-	fprintf (asm_out_file, "0x%x", byte);
-	if (more)
-	  fputc (',', asm_out_file);
+	if (byte_op)
+	  {
+	    fprintf (asm_out_file, "%#x", byte);
+	    if (more)
+	      fputc (',', asm_out_file);
+	  }
+	else
+	  assemble_integer (GEN_INT (byte), 1, BITS_PER_UNIT, 1);
       }
     while (more);
 
   if (flag_debug_asm)
     {
-      fprintf (asm_out_file, "\t%s sleb128 ", ASM_COMMENT_START);
-      fprintf (asm_out_file, HOST_WIDE_INT_PRINT_DEC, value);
+      fprintf (asm_out_file, "\t%s sleb128 " HOST_WIDE_INT_PRINT_DEC,
+	       ASM_COMMENT_START, value);
       if (comment)
 	{
 	  fputs ("; ", asm_out_file);
@@ -654,18 +701,17 @@ dw2_asm_output_data_sleb128 VPARAMS ((HOST_WIDE_INT value,
 #endif
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
 void
-dw2_asm_output_delta_uleb128 VPARAMS ((const char *lab1 ATTRIBUTE_UNUSED,
-				       const char *lab2 ATTRIBUTE_UNUSED,
-				       const char *comment, ...))
+dw2_asm_output_delta_uleb128 (const char *lab1 ATTRIBUTE_UNUSED,
+			      const char *lab2 ATTRIBUTE_UNUSED,
+			      const char *comment, ...)
 {
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, const char *, lab1);
-  VA_FIXEDARG (ap, const char *, lab2);
-  VA_FIXEDARG (ap, const char *, comment);
+  va_list ap;
+
+  va_start (ap, comment);
 
 #ifdef HAVE_AS_LEB128
   fputs ("\t.uleb128 ", asm_out_file);
@@ -673,7 +719,7 @@ dw2_asm_output_delta_uleb128 VPARAMS ((const char *lab1 ATTRIBUTE_UNUSED,
   fputc ('-', asm_out_file);
   assemble_name (asm_out_file, lab2);
 #else
-  abort ();
+  gcc_unreachable ();
 #endif
 
   if (flag_debug_asm && comment)
@@ -683,18 +729,19 @@ dw2_asm_output_delta_uleb128 VPARAMS ((const char *lab1 ATTRIBUTE_UNUSED,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
+#if 0
+
 void
-dw2_asm_output_delta_sleb128 VPARAMS ((const char *lab1 ATTRIBUTE_UNUSED,
-				       const char *lab2 ATTRIBUTE_UNUSED,
-				       const char *comment, ...))
+dw2_asm_output_delta_sleb128 (const char *lab1 ATTRIBUTE_UNUSED,
+			      const char *lab2 ATTRIBUTE_UNUSED,
+			      const char *comment, ...)
 {
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, const char *, lab1);
-  VA_FIXEDARG (ap, const char *, lab2);
-  VA_FIXEDARG (ap, const char *, comment);
+  va_list ap;
+
+  va_start (ap, comment);
 
 #ifdef HAVE_AS_LEB128
   fputs ("\t.sleb128 ", asm_out_file);
@@ -702,7 +749,7 @@ dw2_asm_output_delta_sleb128 VPARAMS ((const char *lab1 ATTRIBUTE_UNUSED,
   fputc ('-', asm_out_file);
   assemble_name (asm_out_file, lab2);
 #else
-  abort ();
+  gcc_unreachable ();
 #endif
 
   if (flag_debug_asm && comment)
@@ -712,71 +759,139 @@ dw2_asm_output_delta_sleb128 VPARAMS ((const char *lab1 ATTRIBUTE_UNUSED,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
+#endif /* 0 */
 
-static rtx dw2_force_const_mem PARAMS ((rtx));
-static int dw2_output_indirect_constant_1 PARAMS ((splay_tree_node, void *));
+static int dw2_output_indirect_constant_1 (splay_tree_node, void *);
+
+static GTY((param1_is (char *), param2_is (tree))) splay_tree indirect_pool;
 
-static splay_tree indirect_pool;
+static GTY(()) int dw2_const_labelno;
+
+#if defined(HAVE_GAS_HIDDEN) && defined(SUPPORTS_ONE_ONLY)
+# define USE_LINKONCE_INDIRECT 1
+#else
+# define USE_LINKONCE_INDIRECT 0
+#endif
+
+/* Comparison function for a splay tree in which the keys are strings.
+   K1 and K2 have the dynamic type "const char *".  Returns <0, 0, or
+   >0 to indicate whether K1 is less than, equal to, or greater than
+   K2, respectively.  */
+
+static int
+splay_tree_compare_strings (splay_tree_key k1, splay_tree_key k2)
+{
+  const char *s1 = (const char *)k1;
+  const char *s2 = (const char *)k2;
+  int ret;
+
+  if (s1 == s2)
+    return 0;
+
+  ret = strcmp (s1, s2);
+
+  /* The strings are always those from IDENTIFIER_NODEs, and,
+     therefore, we should never have two copies of the same
+     string.  */
+  gcc_assert (ret);
+
+  return ret;
+}
 
 /* Put X, a SYMBOL_REF, in memory.  Return a SYMBOL_REF to the allocated
    memory.  Differs from force_const_mem in that a single pool is used for
    the entire unit of translation, and the memory is not guaranteed to be
-   "near" the function in any interesting sense.  */
+   "near" the function in any interesting sense.  IS_PUBLIC controls whether
+   the symbol can be shared across the entire application (or DSO).  */
 
-static rtx
-dw2_force_const_mem (x)
-     rtx x;
+rtx
+dw2_force_const_mem (rtx x, bool is_public)
 {
   splay_tree_node node;
-  const char *const_sym;
+  const char *key;
+  tree decl_id;
 
   if (! indirect_pool)
-    indirect_pool = splay_tree_new (splay_tree_compare_pointers, NULL, NULL);
+    /* We use strcmp, rather than just comparing pointers, so that the
+       sort order will not depend on the host system.  */
+    indirect_pool = splay_tree_new_ggc (splay_tree_compare_strings);
 
-  if (GET_CODE (x) != SYMBOL_REF)
-    abort ();
-  node = splay_tree_lookup (indirect_pool, (splay_tree_key) XSTR (x, 0));
+  gcc_assert (GET_CODE (x) == SYMBOL_REF);
+
+  key = XSTR (x, 0);
+  node = splay_tree_lookup (indirect_pool, (splay_tree_key) key);
   if (node)
-    const_sym = (const char *) node->value;
+    decl_id = (tree) node->value;
   else
     {
-      extern int const_labelno;
-      char label[32];
       tree id;
+      const char *str = targetm.strip_name_encoding (key);
 
-      ASM_GENERATE_INTERNAL_LABEL (label, "LC", const_labelno);
-      ++const_labelno;
-      const_sym = ggc_strdup (label);
+      if (is_public && USE_LINKONCE_INDIRECT)
+	{
+	  char *ref_name = XALLOCAVEC (char, strlen (str) + sizeof "DW.ref.");
 
-      id = maybe_get_identifier (XSTR (x, 0));
+	  sprintf (ref_name, "DW.ref.%s", str);
+	  gcc_assert (!maybe_get_identifier (ref_name));
+	  decl_id = get_identifier (ref_name);
+	  TREE_PUBLIC (decl_id) = 1;
+	}
+      else
+	{
+	  char label[32];
+
+	  ASM_GENERATE_INTERNAL_LABEL (label, "LDFCM", dw2_const_labelno);
+	  ++dw2_const_labelno;
+	  gcc_assert (!maybe_get_identifier (label));
+	  decl_id = get_identifier (label);
+	}
+
+      id = maybe_get_identifier (str);
       if (id)
 	TREE_SYMBOL_REFERENCED (id) = 1;
 
-      splay_tree_insert (indirect_pool, (splay_tree_key) XSTR (x, 0),
-			 (splay_tree_value) const_sym);
+      splay_tree_insert (indirect_pool, (splay_tree_key) key,
+			 (splay_tree_value) decl_id);
     }
 
-  return gen_rtx_SYMBOL_REF (Pmode, const_sym);
+  return gen_rtx_SYMBOL_REF (Pmode, IDENTIFIER_POINTER (decl_id));
 }
 
 /* A helper function for dw2_output_indirect_constants called through
    splay_tree_foreach.  Emit one queued constant to memory.  */
 
 static int
-dw2_output_indirect_constant_1 (node, data)
-     splay_tree_node node;
-     void* data ATTRIBUTE_UNUSED;
+dw2_output_indirect_constant_1 (splay_tree_node node,
+				void *data ATTRIBUTE_UNUSED)
 {
-  const char *label, *sym;
+  const char *sym;
   rtx sym_ref;
+  tree id, decl;
 
-  label = (const char *) node->value;
   sym = (const char *) node->key;
-  sym_ref = gen_rtx_SYMBOL_REF (Pmode, sym);
+  id = (tree) node->value;
+
+  decl = build_decl (UNKNOWN_LOCATION, VAR_DECL, id, ptr_type_node);
+  DECL_ARTIFICIAL (decl) = 1;
+  DECL_IGNORED_P (decl) = 1;
+  DECL_INITIAL (decl) = decl;
+  TREE_READONLY (decl) = 1;
 
-  ASM_OUTPUT_LABEL (asm_out_file, label);
+  if (TREE_PUBLIC (id))
+    {
+      TREE_PUBLIC (decl) = 1;
+      make_decl_one_only (decl, DECL_ASSEMBLER_NAME (decl));
+    }
+  else
+    TREE_STATIC (decl) = 1;
+
+  sym_ref = gen_rtx_SYMBOL_REF (Pmode, sym);
+  sym = targetm.strip_name_encoding (sym);
+  if (TREE_PUBLIC (decl) && USE_LINKONCE_INDIRECT)
+    fprintf (asm_out_file, "\t.hidden %sDW.ref.%s\n", user_label_prefix, sym);
+  assemble_variable (decl, 1, 1, 1);
   assemble_integer (sym_ref, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
 
   return 0;
@@ -785,36 +900,24 @@ dw2_output_indirect_constant_1 (node, data)
 /* Emit the constants queued through dw2_force_const_mem.  */
 
 void
-dw2_output_indirect_constants ()
+dw2_output_indirect_constants (void)
 {
-  if (! indirect_pool)
-    return;
-
-  /* Assume that the whole reason we're emitting these symbol references
-     indirectly is that they contain dynamic relocations, and are thus
-     read-write.  If there was no possibility of a dynamic relocation, we
-     might as well have used a direct relocation.  */
-  data_section ();
-
-  /* Everything we're emitting is a pointer.  Align appropriately.  */
-  assemble_align (POINTER_SIZE);
-
-  splay_tree_foreach (indirect_pool, dw2_output_indirect_constant_1, NULL);
+  if (indirect_pool)
+    splay_tree_foreach (indirect_pool, dw2_output_indirect_constant_1, NULL);
 }
 
-/* Like dw2_asm_output_addr_rtx, but encode the pointer as directed.  */
+/* Like dw2_asm_output_addr_rtx, but encode the pointer as directed.
+   If PUBLIC is set and the encoding is DW_EH_PE_indirect, the indirect
+   reference is shared across the entire application (or DSO).  */
 
 void
-dw2_asm_output_encoded_addr_rtx VPARAMS ((int encoding,
-					  rtx addr,
-					  const char *comment, ...))
+dw2_asm_output_encoded_addr_rtx (int encoding, rtx addr, bool is_public,
+				 const char *comment, ...)
 {
   int size;
+  va_list ap;
 
-  VA_OPEN (ap, comment);
-  VA_FIXEDARG (ap, int, encoding);
-  VA_FIXEDARG (ap, rtx, addr);
-  VA_FIXEDARG (ap, const char *, comment);
+  va_start (ap, comment);
 
   size = size_of_encoded_value (encoding);
 
@@ -825,14 +928,15 @@ dw2_asm_output_encoded_addr_rtx VPARAMS ((int encoding,
       return;
     }
 
-  /* NULL is _always_ represented as a plain zero.  */
-  if (addr == const0_rtx)
+  /* NULL is _always_ represented as a plain zero, as is 1 for Ada's
+     "all others".  */
+  if (addr == const0_rtx || addr == const1_rtx)
     assemble_integer (addr, size, BITS_PER_UNIT, 1);
   else
     {
     restart:
       /* Allow the target first crack at emitting this.  Some of the
-	 special relocations require special directives instead of 
+	 special relocations require special directives instead of
 	 just ".4byte" or whatever.  */
 #ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX
       ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX (asm_out_file, encoding, size,
@@ -846,9 +950,9 @@ dw2_asm_output_encoded_addr_rtx VPARAMS ((int encoding,
 	  /* It is very tempting to use force_const_mem so that we share data
 	     with the normal constant pool.  However, we've already emitted
 	     the constant pool for this function.  Moreover, we'd like to
-	     share these constants across the entire unit of translation,
-	     or better, across the entire application (or DSO).  */
-	  addr = dw2_force_const_mem (addr);
+	     share these constants across the entire unit of translation and
+	     even, if possible, across the entire application (or DSO).  */
+	  addr = dw2_force_const_mem (addr, is_public);
 	  encoding &= ~DW_EH_PE_indirect;
 	  goto restart;
 	}
@@ -856,35 +960,22 @@ dw2_asm_output_encoded_addr_rtx VPARAMS ((int encoding,
       switch (encoding & 0xF0)
 	{
 	case DW_EH_PE_absptr:
-#ifdef UNALIGNED_INT_ASM_OP
-	  fputs (unaligned_integer_asm_op (size), asm_out_file);
-	  output_addr_const (asm_out_file, addr);
-#else
-	  assemble_integer (addr, size, BITS_PER_UNIT, 1);
-#endif
+	  dw2_assemble_integer (size, addr);
 	  break;
 
 	case DW_EH_PE_pcrel:
-	  if (GET_CODE (addr) != SYMBOL_REF)
-	    abort ();
+	  gcc_assert (GET_CODE (addr) == SYMBOL_REF);
 #ifdef ASM_OUTPUT_DWARF_PCREL
 	  ASM_OUTPUT_DWARF_PCREL (asm_out_file, size, XSTR (addr, 0));
 #else
-#ifdef UNALIGNED_INT_ASM_OP
-	  fputs (unaligned_integer_asm_op (size), asm_out_file);
-	  assemble_name (asm_out_file, XSTR (addr, 0));
-	  fputc ('-', asm_out_file);
-	  fputc ('.', asm_out_file);
-#else
-	  abort ();
-#endif
+	  dw2_assemble_integer (size, gen_rtx_MINUS (Pmode, addr, pc_rtx));
 #endif
 	  break;
 
 	default:
-	  /* Other encodings should have been handled by 
+	  /* Other encodings should have been handled by
 	     ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX.  */
-	  abort ();
+	  gcc_unreachable ();
 	}
 
 #ifdef ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX
@@ -899,5 +990,7 @@ dw2_asm_output_encoded_addr_rtx VPARAMS ((int encoding,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
+
+#include "gt-dwarf2asm.h"