X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fdwarf2asm.c;h=6d2c3cb87e6cbcac0a17835156058c1e97313008;hb=7bd4f6b63b19925aeac70cbaca769aef8d58ed91;hp=281cb4674a5233f5d0be83fe4387a3824d83215d;hpb=d1ad0100e45a00a0fefe765df74949cb905f3959;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/gcc/dwarf2asm.c b/gcc/dwarf2asm.c
index 281cb4674a5..6d2c3cb87e6 100644
--- a/gcc/dwarf2asm.c
+++ b/gcc/dwarf2asm.c
@@ -1,5 +1,5 @@
 /* Dwarf2 assembler output helper routines.
-   Copyright (C) 2001 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -21,10 +21,13 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 
 #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"
@@ -37,71 +40,42 @@ 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 = NULL;
-  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 (GET_CODE (x) == CONST_INT)
+	fprintf (asm_out_file, HOST_WIDE_INT_PRINT_HEX, INTVAL (x));
+      else
+	output_addr_const (asm_out_file, x);
     }
-
-  if (! op)
-    abort ();
-
-  return op;
+  else
+    assemble_integer (x, size, BITS_PER_UNIT, 1);
 }
-#endif /* UNALIGNED_INT_ASM_OP */
+
 
 /* Output an immediate constant in a given size.  */
 
 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;
+
+  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
+  dw2_assemble_integer (size, GEN_INT (value));
 
   if (flag_debug_asm && comment)
     {
@@ -110,7 +84,7 @@ 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.  */
@@ -120,26 +94,21 @@ 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);
@@ -147,7 +116,7 @@ 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
@@ -157,23 +126,17 @@ dw2_asm_output_delta VPARAMS ((int size, const char *lab1, const char *lab2,
    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,
+		       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);
 #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)
@@ -183,32 +146,28 @@ dw2_asm_output_offset VPARAMS ((int size, const char *label,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
 /* 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)
@@ -218,26 +177,20 @@ dw2_asm_output_pcrel VPARAMS ((int size, const char *label,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
 /* 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)
     {
@@ -246,26 +199,20 @@ 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)
     {
@@ -274,19 +221,24 @@ 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, orig_len);
-  VA_FIXEDARG (ap, const char *, comment);
+  va_start (ap, comment);
 
   len = orig_len;
 
@@ -318,24 +270,22 @@ 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;
     }
@@ -347,8 +297,7 @@ 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;
 
@@ -365,12 +314,11 @@ 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;
@@ -385,15 +333,15 @@ 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,
@@ -539,28 +487,27 @@ 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.  */
 
 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)
     {
@@ -570,8 +517,10 @@ 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);
@@ -580,16 +529,21 @@ 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, "0x%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);
@@ -600,22 +554,21 @@ 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.  */
+/* 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)
     {
@@ -626,8 +579,10 @@ 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);
@@ -638,16 +593,21 @@ 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, "0x%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);
@@ -658,18 +618,17 @@ 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);
@@ -677,7 +636,7 @@ 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)
@@ -687,18 +646,17 @@ dw2_asm_output_delta_uleb128 VPARAMS ((const char *lab1 ATTRIBUTE_UNUSED,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
 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);
@@ -706,7 +664,7 @@ 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)
@@ -716,13 +674,21 @@ dw2_asm_output_delta_sleb128 VPARAMS ((const char *lab1 ATTRIBUTE_UNUSED,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
 
-static rtx dw2_force_const_mem PARAMS ((rtx));
-static int dw2_output_indirect_constant_1 PARAMS ((splay_tree_node, void *));
+static rtx dw2_force_const_mem (rtx);
+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
 
 /* 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
@@ -730,57 +696,76 @@ static splay_tree indirect_pool;
    "near" the function in any interesting sense.  */
 
 static rtx
-dw2_force_const_mem (x)
-     rtx x;
+dw2_force_const_mem (rtx x)
 {
   splay_tree_node node;
-  const char *const_sym;
+  const char *str;
+  tree decl;
 
   if (! indirect_pool)
-    indirect_pool = splay_tree_new (splay_tree_compare_pointers, NULL, NULL);
+    indirect_pool = splay_tree_new_ggc (splay_tree_compare_pointers);
+
+  gcc_assert (GET_CODE (x) == SYMBOL_REF);
 
-  if (GET_CODE (x) != SYMBOL_REF)
-    abort ();
-  node = splay_tree_lookup (indirect_pool, (splay_tree_key) XSTR (x, 0));
+  str = targetm.strip_name_encoding (XSTR (x, 0));
+  node = splay_tree_lookup (indirect_pool, (splay_tree_key) str);
   if (node)
-    const_sym = (const char *) node->value;
+    decl = (tree) node->value;
   else
     {
-      extern int const_labelno;
-      char label[32];
       tree id;
 
-      ASM_GENERATE_INTERNAL_LABEL (label, "LC", const_labelno);
-      ++const_labelno;
-      const_sym = ggc_strdup (label);
+      if (USE_LINKONCE_INDIRECT)
+	{
+	  char *ref_name = alloca (strlen (str) + sizeof "DW.ref.");
+
+	  sprintf (ref_name, "DW.ref.%s", str);
+	  id = get_identifier (ref_name);
+	  decl = build_decl (VAR_DECL, id, ptr_type_node);
+	  DECL_ARTIFICIAL (decl) = 1;
+	  TREE_PUBLIC (decl) = 1;
+	  DECL_INITIAL (decl) = decl;
+	  make_decl_one_only (decl);
+	}
+      else
+	{
+	  char label[32];
+
+	  ASM_GENERATE_INTERNAL_LABEL (label, "LDFCM", dw2_const_labelno);
+	  ++dw2_const_labelno;
+	  id = get_identifier (label);
+	  decl = build_decl (VAR_DECL, id, ptr_type_node);
+	  DECL_ARTIFICIAL (decl) = 1;
+	  TREE_STATIC (decl) = 1;
+	  DECL_INITIAL (decl) = decl;
+	}
 
-      id = maybe_get_identifier (XSTR (x, 0));
+      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) str,
+			 (splay_tree_value) decl);
     }
 
-  return gen_rtx_SYMBOL_REF (Pmode, const_sym);
+  return XEXP (DECL_RTL (decl), 0);
 }
 
 /* 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;
 
-  label = (const char *) node->value;
   sym = (const char *) node->key;
   sym_ref = gen_rtx_SYMBOL_REF (Pmode, sym);
-
-  ASM_OUTPUT_LABEL (asm_out_file, label);
+  if (USE_LINKONCE_INDIRECT)
+    fprintf (asm_out_file, "\t.hidden %sDW.ref.%s\n", user_label_prefix, sym);
+  assemble_variable ((tree) node->value, 1, 1, 1);
   assemble_integer (sym_ref, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1);
 
   return 0;
@@ -789,36 +774,22 @@ 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.  */
 
 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,
+				 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);
 
@@ -829,14 +800,15 @@ 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,
@@ -860,35 +832,22 @@ 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
@@ -903,5 +862,7 @@ dw2_asm_output_encoded_addr_rtx VPARAMS ((int encoding,
     }
   fputc ('\n', asm_out_file);
 
-  VA_CLOSE (ap);
+  va_end (ap);
 }
+
+#include "gt-dwarf2asm.h"