Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the

non-i386, non-unix, and generatable files have been trimmed, but can easily
be added in later if needed.

gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's
handy to have both available for reference for such little cost.

The freebsd-specific changes will then be committed, and once the dust has
settled, the bmakefiles will be committed to use this code.

1 files changed, 2518 insertions, 0 deletions

diff --git a/contrib/gcc/dbxout.c b/contrib/gcc/dbxout.c
new file mode 100644
index 0000000..e322614
--- /dev/null
+++ b/contrib/gcc/dbxout.c
@@ -0,0 +1,2518 @@
+/* Output dbx-format symbol table information from GNU compiler.
+   Copyright (C) 1987, 88, 92, 93, 94, 1995 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC 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 version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or 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 GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+
+/* Output dbx-format symbol table data.
+   This consists of many symbol table entries, each of them
+   a .stabs assembler pseudo-op with four operands:
+   a "name" which is really a description of one symbol and its type,
+   a "code", which is a symbol defined in stab.h whose name starts with N_,
+   an unused operand always 0,
+   and a "value" which is an address or an offset.
+   The name is enclosed in doublequote characters.
+
+   Each function, variable, typedef, and structure tag
+   has a symbol table entry to define it.
+   The beginning and end of each level of name scoping within
+   a function are also marked by special symbol table entries.
+
+   The "name" consists of the symbol name, a colon, a kind-of-symbol letter,
+   and a data type number.  The data type number may be followed by
+   "=" and a type definition; normally this will happen the first time
+   the type number is mentioned.  The type definition may refer to
+   other types by number, and those type numbers may be followed
+   by "=" and nested definitions.
+
+   This can make the "name" quite long.
+   When a name is more than 80 characters, we split the .stabs pseudo-op
+   into two .stabs pseudo-ops, both sharing the same "code" and "value".
+   The first one is marked as continued with a double-backslash at the
+   end of its "name".
+
+   The kind-of-symbol letter distinguished function names from global
+   variables from file-scope variables from parameters from auto
+   variables in memory from typedef names from register variables.
+   See `dbxout_symbol'.
+
+   The "code" is mostly redundant with the kind-of-symbol letter
+   that goes in the "name", but not entirely: for symbols located
+   in static storage, the "code" says which segment the address is in,
+   which controls how it is relocated.
+
+   The "value" for a symbol in static storage
+   is the core address of the symbol (actually, the assembler
+   label for the symbol).  For a symbol located in a stack slot
+   it is the stack offset; for one in a register, the register number.
+   For a typedef symbol, it is zero.
+
+   If DEBUG_SYMS_TEXT is defined, all debugging symbols must be
+   output while in the text section.
+
+   For more on data type definitions, see `dbxout_type'.  */
+
+/* Include these first, because they may define MIN and MAX.  */
+#include <stdio.h>
+#include <errno.h>
+
+#include "config.h"
+#include "tree.h"
+#include "rtl.h"
+#include "flags.h"
+#include "regs.h"
+#include "insn-config.h"
+#include "reload.h"
+#include "defaults.h"
+#include "output.h" /* ASM_OUTPUT_SOURCE_LINE may refer to sdb functions.  */
+
+#ifndef errno
+extern int errno;
+#endif
+
+#ifdef XCOFF_DEBUGGING_INFO
+#include "xcoffout.h"
+#endif
+
+#ifndef ASM_STABS_OP
+#define ASM_STABS_OP ".stabs"
+#endif
+
+#ifndef ASM_STABN_OP
+#define ASM_STABN_OP ".stabn"
+#endif
+
+#ifndef DBX_TYPE_DECL_STABS_CODE
+#define DBX_TYPE_DECL_STABS_CODE N_LSYM
+#endif
+
+#ifndef DBX_STATIC_CONST_VAR_CODE
+#define DBX_STATIC_CONST_VAR_CODE N_FUN
+#endif
+
+#ifndef DBX_REGPARM_STABS_CODE
+#define DBX_REGPARM_STABS_CODE N_RSYM
+#endif
+
+#ifndef DBX_REGPARM_STABS_LETTER
+#define DBX_REGPARM_STABS_LETTER 'P'
+#endif
+
+/* This is used for parameters passed by invisible reference in a register.  */
+#ifndef GDB_INV_REF_REGPARM_STABS_LETTER
+#define GDB_INV_REF_REGPARM_STABS_LETTER 'a'
+#endif
+
+#ifndef DBX_MEMPARM_STABS_LETTER
+#define DBX_MEMPARM_STABS_LETTER 'p'
+#endif
+
+#ifndef FILE_NAME_JOINER
+#define FILE_NAME_JOINER "/"
+#endif
+
+/* Nonzero means if the type has methods, only output debugging
+   information if methods are actually written to the asm file.  */
+
+static int flag_minimal_debug = 1;
+
+/* Nonzero if we have actually used any of the GDB extensions
+   to the debugging format.  The idea is that we use them for the
+   first time only if there's a strong reason, but once we have done that,
+   we use them whenever convenient.  */
+
+static int have_used_extensions = 0;
+
+/* Number for the next N_SOL filename stabs label.  The number 0 is reserved
+   for the N_SO filename stabs label.  */
+
+static int source_label_number = 1;
+
+char *getpwd ();
+
+/* Typical USG systems don't have stab.h, and they also have
+   no use for DBX-format debugging info.  */
+
+#if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
+
+#ifdef DEBUG_SYMS_TEXT
+#define FORCE_TEXT text_section ();
+#else
+#define FORCE_TEXT
+#endif
+
+#if defined (USG) || defined (NO_STAB_H)
+#include "gstab.h"  /* If doing DBX on sysV, use our own stab.h.  */
+#else
+#include <stab.h>  /* On BSD, use the system's stab.h.  */
+
+/* This is a GNU extension we need to reference in this file.  */
+#ifndef N_CATCH
+#define N_CATCH 0x54
+#endif
+#endif /* not USG */
+
+#ifdef __GNU_STAB__
+#define STAB_CODE_TYPE enum __stab_debug_code
+#else
+#define STAB_CODE_TYPE int
+#endif
+
+/* 1 if PARM is passed to this function in memory.  */
+
+#define PARM_PASSED_IN_MEMORY(PARM) \
+ (GET_CODE (DECL_INCOMING_RTL (PARM)) == MEM)
+
+/* A C expression for the integer offset value of an automatic variable
+   (N_LSYM) having address X (an RTX).  */
+#ifndef DEBUGGER_AUTO_OFFSET
+#define DEBUGGER_AUTO_OFFSET(X) \
+  (GET_CODE (X) == PLUS ? INTVAL (XEXP (X, 1)) : 0)
+#endif
+
+/* A C expression for the integer offset value of an argument (N_PSYM)
+   having address X (an RTX).  The nominal offset is OFFSET.  */
+#ifndef DEBUGGER_ARG_OFFSET
+#define DEBUGGER_ARG_OFFSET(OFFSET, X) (OFFSET)
+#endif
+
+/* Stream for writing to assembler file.  */
+
+static FILE *asmfile;
+
+/* Last source file name mentioned in a NOTE insn.  */
+
+static char *lastfile;
+
+/* Current working directory.  */
+
+static char *cwd;
+
+enum typestatus {TYPE_UNSEEN, TYPE_XREF, TYPE_DEFINED};
+
+/* Vector recording the status of describing C data types.
+   When we first notice a data type (a tree node),
+   we assign it a number using next_type_number.
+   That is its index in this vector.
+   The vector element says whether we have yet output
+   the definition of the type.  TYPE_XREF says we have
+   output it as a cross-reference only.  */
+
+enum typestatus *typevec;
+
+/* Number of elements of space allocated in `typevec'.  */
+
+static int typevec_len;
+
+/* In dbx output, each type gets a unique number.
+   This is the number for the next type output.
+   The number, once assigned, is in the TYPE_SYMTAB_ADDRESS field.  */
+
+static int next_type_number;
+
+/* In dbx output, we must assign symbol-blocks id numbers
+   in the order in which their beginnings are encountered.
+   We output debugging info that refers to the beginning and
+   end of the ranges of code in each block
+   with assembler labels LBBn and LBEn, where n is the block number.
+   The labels are generated in final, which assigns numbers to the
+   blocks in the same way.  */
+
+static int next_block_number;
+
+/* These variables are for dbxout_symbol to communicate to
+   dbxout_finish_symbol.
+   current_sym_code is the symbol-type-code, a symbol N_... define in stab.h.
+   current_sym_value and current_sym_addr are two ways to address the
+   value to store in the symtab entry.
+   current_sym_addr if nonzero represents the value as an rtx.
+   If that is zero, current_sym_value is used.  This is used
+   when the value is an offset (such as for auto variables,
+   register variables and parms).  */
+
+static STAB_CODE_TYPE current_sym_code;
+static int current_sym_value;
+static rtx current_sym_addr;
+
+/* Number of chars of symbol-description generated so far for the
+   current symbol.  Used by CHARS and CONTIN.  */
+
+static int current_sym_nchars;
+
+/* Report having output N chars of the current symbol-description.  */
+
+#define CHARS(N) (current_sym_nchars += (N))
+
+/* Break the current symbol-description, generating a continuation,
+   if it has become long.  */
+
+#ifndef DBX_CONTIN_LENGTH
+#define DBX_CONTIN_LENGTH 80
+#endif
+
+#if DBX_CONTIN_LENGTH > 0
+#define CONTIN  \
+  do {if (current_sym_nchars > DBX_CONTIN_LENGTH) dbxout_continue ();} while (0)
+#else
+#define CONTIN
+#endif
+
+void dbxout_types ();
+void dbxout_args ();
+void dbxout_symbol ();
+static void dbxout_type_name ();
+static void dbxout_type ();
+static void dbxout_typedefs ();
+static void dbxout_symbol_name ();
+static void dbxout_symbol_location ();
+static void dbxout_prepare_symbol ();
+static void dbxout_finish_symbol ();
+static void dbxout_continue ();
+static void print_int_cst_octal ();
+static void print_octal ();
+
+#if 0 /* Not clear we will actually need this.  */
+
+/* Return the absolutized filename for the given relative
+   filename.  Note that if that filename is already absolute, it may
+   still be returned in a modified form because this routine also
+   eliminates redundant slashes and single dots and eliminates double
+   dots to get a shortest possible filename from the given input
+   filename.  The absolutization of relative filenames is made by
+   assuming that the given filename is to be taken as relative to
+   the first argument (cwd) or to the current directory if cwd is
+   NULL.  */
+
+static char *
+abspath (rel_filename)
+     char *rel_filename;
+{
+  /* Setup the current working directory as needed.  */
+  char *abs_buffer
+    = (char *) alloca (strlen (cwd) + strlen (rel_filename) + 1);
+  char *endp = abs_buffer;
+  char *outp, *inp;
+  char *value;
+
+  /* Copy the filename (possibly preceded by the current working
+     directory name) into the absolutization buffer.  */
+
+  {
+    char *src_p;
+
+    if (rel_filename[0] != '/')
+      {
+        src_p = cwd;
+        while (*endp++ = *src_p++)
+          continue;
+        *(endp-1) = '/';        		/* overwrite null */
+      }
+    src_p = rel_filename;
+    while (*endp++ = *src_p++)
+      continue;
+    if (endp[-1] == '/')
+      *endp = '\0';
+
+  /* Now make a copy of abs_buffer into abs_buffer, shortening the
+     filename (by taking out slashes and dots) as we go.  */
+
+  outp = inp = abs_buffer;
+  *outp++ = *inp++;        	/* copy first slash */
+  for (;;)
+    {
+      if (!inp[0])
+        break;
+      else if (inp[0] == '/' && outp[-1] == '/')
+        {
+          inp++;
+          continue;
+        }
+      else if (inp[0] == '.' && outp[-1] == '/')
+        {
+          if (!inp[1])
+                  break;
+          else if (inp[1] == '/')
+            {
+                    inp += 2;
+                    continue;
+            }
+          else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/'))
+            {
+                    inp += (inp[2] == '/') ? 3 : 2;
+                    outp -= 2;
+                    while (outp >= abs_buffer && *outp != '/')
+              	outp--;
+                    if (outp < abs_buffer)
+                {
+                  /* Catch cases like /.. where we try to backup to a
+                     point above the absolute root of the logical file
+                     system.  */
+
+              	  fprintf (stderr, "%s: invalid file name: %s\n",
+			   pname, rel_filename);
+              	  exit (1);
+              	}
+                    *++outp = '\0';
+                    continue;
+            }
+        }
+      *outp++ = *inp++;
+    }
+
+  /* On exit, make sure that there is a trailing null, and make sure that
+     the last character of the returned string is *not* a slash.  */
+
+  *outp = '\0';
+  if (outp[-1] == '/')
+    *--outp  = '\0';
+
+  /* Make a copy (in the heap) of the stuff left in the absolutization
+     buffer and return a pointer to the copy.  */
+
+  value = (char *) oballoc (strlen (abs_buffer) + 1);
+  strcpy (value, abs_buffer);
+  return value;
+}
+#endif /* 0 */
+
+/* At the beginning of compilation, start writing the symbol table.
+   Initialize `typevec' and output the standard data types of C.  */
+
+void
+dbxout_init (asm_file, input_file_name, syms)
+     FILE *asm_file;
+     char *input_file_name;
+     tree syms;
+{
+  char ltext_label_name[100];
+
+  asmfile = asm_file;
+
+  typevec_len = 100;
+  typevec = (enum typestatus *) xmalloc (typevec_len * sizeof typevec[0]);
+  bzero ((char *) typevec, typevec_len * sizeof typevec[0]);
+
+  /* Convert Ltext into the appropriate format for local labels in case
+     the system doesn't insert underscores in front of user generated
+     labels.  */
+  ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", 0);
+
+  /* Put the current working directory in an N_SO symbol.  */
+#ifndef DBX_WORKING_DIRECTORY /* Only some versions of DBX want this,
+				 but GDB always does.  */
+  if (use_gnu_debug_info_extensions)
+#endif
+    {
+      if (!cwd && (cwd = getpwd ()) && (!*cwd || cwd[strlen (cwd) - 1] != '/'))
+	{
+	  char *wdslash = xmalloc (strlen (cwd) + sizeof (FILE_NAME_JOINER));
+	  sprintf (wdslash, "%s%s", cwd, FILE_NAME_JOINER);
+	  cwd = wdslash;
+	}
+      if (cwd)
+	{
+#ifdef DBX_OUTPUT_MAIN_SOURCE_DIRECTORY
+	  DBX_OUTPUT_MAIN_SOURCE_DIRECTORY (asmfile, cwd);
+#else /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
+	  fprintf (asmfile, "%s ", ASM_STABS_OP);
+	  output_quoted_string (asmfile, cwd);
+	  fprintf (asmfile, ",%d,0,0,%s\n", N_SO, &ltext_label_name[1]);
+#endif /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
+	}
+    }
+
+#ifdef DBX_OUTPUT_MAIN_SOURCE_FILENAME
+  /* This should NOT be DBX_OUTPUT_SOURCE_FILENAME. That
+     would give us an N_SOL, and we want an N_SO.  */
+  DBX_OUTPUT_MAIN_SOURCE_FILENAME (asmfile, input_file_name);
+#else /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */
+  /* We include outputting `Ltext:' here,
+     because that gives you a way to override it.  */
+  /* Used to put `Ltext:' before the reference, but that loses on sun 4.  */
+  fprintf (asmfile, "%s ", ASM_STABS_OP);
+  output_quoted_string (asmfile, input_file_name);
+  fprintf (asmfile, ",%d,0,0,%s\n", 
+	   N_SO, &ltext_label_name[1]);
+  text_section ();
+  ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Ltext", 0);
+#endif /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */
+
+  /* Possibly output something to inform GDB that this compilation was by
+     GCC.  It's easier for GDB to parse it when after the N_SO's.  This
+     is used in Solaris 2.  */
+#ifdef ASM_IDENTIFY_GCC_AFTER_SOURCE
+  ASM_IDENTIFY_GCC_AFTER_SOURCE (asmfile);
+#endif
+
+  lastfile = input_file_name;
+
+  next_type_number = 1;
+  next_block_number = 2;
+
+  /* Make sure that types `int' and `char' have numbers 1 and 2.
+     Definitions of other integer types will refer to those numbers.
+     (Actually it should no longer matter what their numbers are.
+     Also, if any types with tags have been defined, dbxout_symbol
+     will output them first, so the numbers won't be 1 and 2.  That
+     happens in C++.  So it's a good thing it should no longer matter).  */
+
+#ifdef DBX_OUTPUT_STANDARD_TYPES
+  DBX_OUTPUT_STANDARD_TYPES (syms);
+#else
+  dbxout_symbol (TYPE_NAME (integer_type_node), 0);
+  dbxout_symbol (TYPE_NAME (char_type_node), 0);
+#endif
+
+  /* Get all permanent types that have typedef names,
+     and output them all, except for those already output.  */
+
+  dbxout_typedefs (syms);
+}
+
+/* Output any typedef names for types described by TYPE_DECLs in SYMS,
+   in the reverse order from that which is found in SYMS.  */
+
+static void
+dbxout_typedefs (syms)
+     tree syms;
+{
+  if (syms)
+    {
+      dbxout_typedefs (TREE_CHAIN (syms));
+      if (TREE_CODE (syms) == TYPE_DECL)
+	{
+	  tree type = TREE_TYPE (syms);
+	  if (TYPE_NAME (type)
+	      && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
+	      && ! TREE_ASM_WRITTEN (TYPE_NAME (type)))
+	    dbxout_symbol (TYPE_NAME (type), 0);
+	}
+    }
+}
+
+/* Output debugging info to FILE to switch to sourcefile FILENAME.  */
+
+void
+dbxout_source_file (file, filename)
+     FILE *file;
+     char *filename;
+{
+  char ltext_label_name[100];
+
+  if (filename && (lastfile == 0 || strcmp (filename, lastfile)))
+    {
+#ifdef DBX_OUTPUT_SOURCE_FILENAME
+      DBX_OUTPUT_SOURCE_FILENAME (file, filename);
+#else
+      ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext",
+				   source_label_number);
+      fprintf (file, "%s ", ASM_STABS_OP);
+      output_quoted_string (file, filename);
+      fprintf (file, ",%d,0,0,%s\n", N_SOL, &ltext_label_name[1]);
+      if (current_function_decl != NULL_TREE
+	  && DECL_SECTION_NAME (current_function_decl) != NULL_TREE)
+	; /* Don't change section amid function.  */
+      else
+	text_section ();
+      ASM_OUTPUT_INTERNAL_LABEL (file, "Ltext", source_label_number);
+      source_label_number++;
+#endif
+      lastfile = filename;
+    }
+}
+
+/* Output a line number symbol entry into output stream FILE, 
+   for source file FILENAME and line number LINENO.  */
+
+void
+dbxout_source_line (file, filename, lineno)
+     FILE *file;
+     char *filename;
+     int lineno;
+{
+  dbxout_source_file (file, filename);
+
+#ifdef ASM_OUTPUT_SOURCE_LINE
+  ASM_OUTPUT_SOURCE_LINE (file, lineno);
+#else
+  fprintf (file, "\t%s %d,0,%d\n", ASM_STABD_OP, N_SLINE, lineno);
+#endif
+}
+
+/* At the end of compilation, finish writing the symbol table.
+   Unless you define DBX_OUTPUT_MAIN_SOURCE_FILE_END, the default is
+   to do nothing. */
+
+void
+dbxout_finish (file, filename)
+     FILE *file;
+     char *filename;
+{
+#ifdef DBX_OUTPUT_MAIN_SOURCE_FILE_END
+  DBX_OUTPUT_MAIN_SOURCE_FILE_END (file, filename);
+#endif /* DBX_OUTPUT_MAIN_SOURCE_FILE_END */
+}
+
+/* Continue a symbol-description that gets too big.
+   End one symbol table entry with a double-backslash
+   and start a new one, eventually producing something like
+   .stabs "start......\\",code,0,value
+   .stabs "...rest",code,0,value   */
+
+static void
+dbxout_continue ()
+{
+#ifdef DBX_CONTIN_CHAR
+  fprintf (asmfile, "%c", DBX_CONTIN_CHAR);
+#else
+  fprintf (asmfile, "\\\\");
+#endif
+  dbxout_finish_symbol (NULL_TREE);
+  fprintf (asmfile, "%s \"", ASM_STABS_OP);
+  current_sym_nchars = 0;
+}
+
+/* Subroutine of `dbxout_type'.  Output the type fields of TYPE.
+   This must be a separate function because anonymous unions require
+   recursive calls.  */
+
+static void
+dbxout_type_fields (type)
+     tree type;
+{
+  tree tem;
+  /* Output the name, type, position (in bits), size (in bits) of each
+     field.  */
+  for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
+    {
+      /* Omit here local type decls until we know how to support them.  */
+      if (TREE_CODE (tem) == TYPE_DECL)
+	continue;
+      /* Omit fields whose position or size are variable.  */
+      else if (TREE_CODE (tem) == FIELD_DECL
+	       && (TREE_CODE (DECL_FIELD_BITPOS (tem)) != INTEGER_CST
+		   || TREE_CODE (DECL_SIZE (tem)) != INTEGER_CST))
+	continue;
+      /* Omit here the nameless fields that are used to skip bits.  */
+      else if (TREE_CODE (tem) != CONST_DECL)
+	{
+	  /* Continue the line if necessary,
+	     but not before the first field.  */
+	  if (tem != TYPE_FIELDS (type))
+	    CONTIN;
+
+	  if (use_gnu_debug_info_extensions
+	      && flag_minimal_debug
+	      && TREE_CODE (tem) == FIELD_DECL
+	      && DECL_VIRTUAL_P (tem)
+	      && DECL_ASSEMBLER_NAME (tem))
+	    {
+	      have_used_extensions = 1;
+	      CHARS (3 + IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (tem)));
+	      fputs (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem)), asmfile);
+	      dbxout_type (DECL_FCONTEXT (tem), 0, 0);
+	      fprintf (asmfile, ":");
+	      dbxout_type (TREE_TYPE (tem), 0, 0);
+	      fprintf (asmfile, ",%d;",
+		       TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)));
+	      continue;
+	    }
+
+	  if (DECL_NAME (tem))
+	    {
+	      fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (tem)));
+	      CHARS (2 + IDENTIFIER_LENGTH (DECL_NAME (tem)));
+	    }
+	  else
+	    {
+	      fprintf (asmfile, ":");
+	      CHARS (2);
+	    }
+
+	  if (use_gnu_debug_info_extensions
+	      && (TREE_PRIVATE (tem) || TREE_PROTECTED (tem)
+		  || TREE_CODE (tem) != FIELD_DECL))
+	    {
+	      have_used_extensions = 1;
+	      putc ('/', asmfile);
+	      putc ((TREE_PRIVATE (tem) ? '0'
+		     : TREE_PROTECTED (tem) ? '1' : '2'),
+		    asmfile);
+	      CHARS (2);
+	    }
+
+	  dbxout_type ((TREE_CODE (tem) == FIELD_DECL
+			&& DECL_BIT_FIELD_TYPE (tem))
+		       ? DECL_BIT_FIELD_TYPE (tem)
+		       : TREE_TYPE (tem), 0, 0);
+
+	  if (TREE_CODE (tem) == VAR_DECL)
+	    {
+	      if (TREE_STATIC (tem) && use_gnu_debug_info_extensions)
+		{
+		  char *name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem));
+		  have_used_extensions = 1;
+		  fprintf (asmfile, ":%s;", name);
+		  CHARS (strlen (name));
+		}
+	      else
+		{
+		  /* If TEM is non-static, GDB won't understand it.  */
+		  fprintf (asmfile, ",0,0;");
+		}
+	    }
+	  else if (TREE_CODE (DECL_FIELD_BITPOS (tem)) == INTEGER_CST)
+	    {
+	      fprintf (asmfile, ",%d,%d;",
+		       TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)),
+		       TREE_INT_CST_LOW (DECL_SIZE (tem)));
+	    }
+	  CHARS (23);
+	}
+    }
+}
+
+/* Subroutine of `dbxout_type_methods'.  Output debug info about the
+   method described DECL.  DEBUG_NAME is an encoding of the method's
+   type signature.  ??? We may be able to do without DEBUG_NAME altogether
+   now.  */
+
+static void
+dbxout_type_method_1 (decl, debug_name)
+     tree decl;
+     char *debug_name;
+{
+  char c1 = 'A', c2;
+
+  if (TREE_CODE (TREE_TYPE (decl)) == FUNCTION_TYPE)
+    c2 = '?';
+  else /* it's a METHOD_TYPE.  */
+    {
+      tree firstarg = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl)));
+      /* A for normal functions.
+	 B for `const' member functions.
+	 C for `volatile' member functions.
+	 D for `const volatile' member functions.  */
+      if (TYPE_READONLY (TREE_TYPE (firstarg)))
+	c1 += 1;
+      if (TYPE_VOLATILE (TREE_TYPE (firstarg)))
+	c1 += 2;
+
+      if (DECL_VINDEX (decl))
+	c2 = '*';
+      else
+	c2 = '.';
+    }
+
+  fprintf (asmfile, ":%s;%c%c%c", debug_name,
+	   TREE_PRIVATE (decl) ? '0' : TREE_PROTECTED (decl) ? '1' : '2', c1, c2);
+  CHARS (IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (decl)) + 6
+	 - (debug_name - IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))));
+  if (DECL_VINDEX (decl))
+    {
+      fprintf (asmfile, "%d;",
+	       TREE_INT_CST_LOW (DECL_VINDEX (decl)));
+      dbxout_type (DECL_CONTEXT (decl), 0, 0);
+      fprintf (asmfile, ";");
+      CHARS (8);
+    }
+}
+
+/* Subroutine of `dbxout_type'.  Output debug info about the methods defined
+   in TYPE.  */
+
+static void
+dbxout_type_methods (type)
+     register tree type;
+{
+  /* C++: put out the method names and their parameter lists */
+  tree methods = TYPE_METHODS (type);
+  tree type_encoding;
+  register tree fndecl;
+  register tree last;
+  char formatted_type_identifier_length[16];
+  register int type_identifier_length;
+
+  if (methods == NULL_TREE)
+    return;
+
+  type_encoding = DECL_NAME (TYPE_NAME (type));
+
+#if 0
+  /* C++: Template classes break some assumptions made by this code about
+     the class names, constructor names, and encodings for assembler
+     label names.  For now, disable output of dbx info for them.  */
+  {
+    char *ptr = IDENTIFIER_POINTER (type_encoding);
+    /* This should use index.  (mrs) */
+    while (*ptr && *ptr != '<') ptr++;
+    if (*ptr != 0)
+      {
+	static int warned;
+	if (!warned)
+	  {
+	    warned = 1;
+#ifdef HAVE_TEMPLATES
+	    if (warn_template_debugging)
+	      warning ("dbx info for template class methods not yet supported");
+#endif
+	  }
+	return;
+      }
+  }
+#endif
+
+  type_identifier_length = IDENTIFIER_LENGTH (type_encoding);
+
+  sprintf(formatted_type_identifier_length, "%d", type_identifier_length);
+
+  if (TREE_CODE (methods) == FUNCTION_DECL)
+    fndecl = methods;
+  else if (TREE_VEC_ELT (methods, 0) != NULL_TREE)
+    fndecl = TREE_VEC_ELT (methods, 0);
+  else
+    fndecl = TREE_VEC_ELT (methods, 1);
+
+  while (fndecl)
+    {
+      tree name = DECL_NAME (fndecl);
+      int need_prefix = 1;
+
+      /* Group together all the methods for the same operation.
+	 These differ in the types of the arguments.  */
+      for (last = NULL_TREE;
+	   fndecl && (last == NULL_TREE || DECL_NAME (fndecl) == DECL_NAME (last));
+	   fndecl = TREE_CHAIN (fndecl))
+	/* Output the name of the field (after overloading), as
+	   well as the name of the field before overloading, along
+	   with its parameter list */
+	{
+	  /* This is the "mangled" name of the method.
+	     It encodes the argument types.  */
+	  char *debug_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl));
+	  int destructor = 0;
+
+	  CONTIN;
+
+	  last = fndecl;
+
+	  if (DECL_IGNORED_P (fndecl))
+	    continue;
+
+	  if (flag_minimal_debug)
+	    {
+	      /* Detect ordinary methods because their mangled names
+		 start with the operation name.  */
+	      if (!strncmp (IDENTIFIER_POINTER (name), debug_name,
+			    IDENTIFIER_LENGTH (name)))
+		{
+		  debug_name += IDENTIFIER_LENGTH (name);
+		  if (debug_name[0] == '_' && debug_name[1] == '_')
+		    {
+		      char *method_name = debug_name + 2;
+		      char *length_ptr = formatted_type_identifier_length;
+		      /* Get past const and volatile qualifiers.  */
+		      while (*method_name == 'C' || *method_name == 'V')
+			method_name++;
+		      /* Skip digits for length of type_encoding. */
+		      while (*method_name == *length_ptr && *length_ptr)
+			  length_ptr++, method_name++;
+		      if (! strncmp (method_name,
+				     IDENTIFIER_POINTER (type_encoding),
+				     type_identifier_length))
+			method_name += type_identifier_length;
+		      debug_name = method_name;
+		    }
+		}
+	      /* Detect constructors by their style of name mangling.  */
+	      else if (debug_name[0] == '_' && debug_name[1] == '_')
+		{
+		  char *ctor_name = debug_name + 2;
+		  char *length_ptr = formatted_type_identifier_length;
+		  while (*ctor_name == 'C' || *ctor_name == 'V')
+		    ctor_name++;
+		  /* Skip digits for length of type_encoding. */
+		  while (*ctor_name == *length_ptr && *length_ptr)
+		      length_ptr++, ctor_name++;
+		  if (!strncmp (IDENTIFIER_POINTER (type_encoding), ctor_name,
+				type_identifier_length))
+		    debug_name = ctor_name + type_identifier_length;
+		}
+	      /* The other alternative is a destructor.  */
+	      else
+		destructor = 1;
+
+	      /* Output the operation name just once, for the first method
+		 that we output.  */
+	      if (need_prefix)
+		{
+		  fprintf (asmfile, "%s::", IDENTIFIER_POINTER (name));
+		  CHARS (IDENTIFIER_LENGTH (name) + 2);
+		  need_prefix = 0;
+		}
+	    }
+
+	  dbxout_type (TREE_TYPE (fndecl), 0, destructor);
+
+	  dbxout_type_method_1 (fndecl, debug_name);
+	}
+      if (!need_prefix)
+	{
+          putc (';', asmfile);
+	  CHARS (1);
+	}
+    }
+}
+
+/* Emit a "range" type specification, which has the form:
+   "r<index type>;<lower bound>;<upper bound>;".
+   TYPE is an INTEGER_TYPE. */
+
+static void
+dbxout_range_type (type)
+     tree type;
+{
+  fprintf (asmfile, "r");
+  if (TREE_TYPE (type))
+    dbxout_type (TREE_TYPE (type), 0, 0);
+  else if (TREE_CODE (type) != INTEGER_TYPE)
+    dbxout_type (type, 0, 0); /* E.g. Pascal's ARRAY [BOOLEAN] of INTEGER */
+  else
+    {
+      /* This used to say `r1' and we used to take care
+	 to make sure that `int' was type number 1.  */
+      fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (integer_type_node));
+    }
+  if (TREE_CODE (TYPE_MIN_VALUE (type)) == INTEGER_CST)
+    fprintf (asmfile, ";%d", 
+	     TREE_INT_CST_LOW (TYPE_MIN_VALUE (type)));
+  else
+    fprintf (asmfile, ";0");
+  if (TREE_CODE (TYPE_MAX_VALUE (type)) == INTEGER_CST)
+    fprintf (asmfile, ";%d;", 
+	     TREE_INT_CST_LOW (TYPE_MAX_VALUE (type)));
+  else
+    fprintf (asmfile, ";-1;");
+}
+
+/* Output a reference to a type.  If the type has not yet been
+   described in the dbx output, output its definition now.
+   For a type already defined, just refer to its definition
+   using the type number.
+
+   If FULL is nonzero, and the type has been described only with
+   a forward-reference, output the definition now.
+   If FULL is zero in this case, just refer to the forward-reference
+   using the number previously allocated.
+
+   If SHOW_ARG_TYPES is nonzero, we output a description of the argument
+   types for a METHOD_TYPE.  */
+
+static void
+dbxout_type (type, full, show_arg_types)
+     tree type;
+     int full;
+     int show_arg_types;
+{
+  register tree tem;
+  static int anonymous_type_number = 0;
+
+  /* If there was an input error and we don't really have a type,
+     avoid crashing and write something that is at least valid
+     by assuming `int'.  */
+  if (type == error_mark_node)
+    type = integer_type_node;
+  else
+    {
+      type = TYPE_MAIN_VARIANT (type);
+      if (TYPE_NAME (type)
+	  && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
+	  && TYPE_DECL_SUPPRESS_DEBUG (TYPE_NAME (type)))
+	full = 0;
+    }
+
+  if (TYPE_SYMTAB_ADDRESS (type) == 0)
+    {
+      /* Type has no dbx number assigned.  Assign next available number.  */
+      TYPE_SYMTAB_ADDRESS (type) = next_type_number++;
+
+      /* Make sure type vector is long enough to record about this type.  */
+
+      if (next_type_number == typevec_len)
+	{
+	  typevec =
+	    (enum typestatus *) xrealloc (typevec,
+					  typevec_len * 2 * sizeof typevec[0]);
+	  bzero ((char *) (typevec + typevec_len),
+		 typevec_len * sizeof typevec[0]);
+	  typevec_len *= 2;
+	}
+    }
+
+  /* Output the number of this type, to refer to it.  */
+  fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
+  CHARS (3);
+
+#ifdef DBX_TYPE_DEFINED
+  if (DBX_TYPE_DEFINED (type))
+    return;
+#endif
+
+  /* If this type's definition has been output or is now being output,
+     that is all.  */
+
+  switch (typevec[TYPE_SYMTAB_ADDRESS (type)])
+    {
+    case TYPE_UNSEEN:
+      break;
+    case TYPE_XREF:
+      /* If we have already had a cross reference,
+	 and either that's all we want or that's the best we could do,
+	 don't repeat the cross reference.
+	 Sun dbx crashes if we do.  */
+      if (! full || TYPE_SIZE (type) == 0
+	  /* No way in DBX fmt to describe a variable size.  */
+	  || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
+	return;
+      break;
+    case TYPE_DEFINED:
+      return;
+    }
+
+#ifdef DBX_NO_XREFS
+  /* For systems where dbx output does not allow the `=xsNAME:' syntax,
+     leave the type-number completely undefined rather than output
+     a cross-reference.  If we have already used GNU debug info extensions,
+     then it is OK to output a cross reference.  This is necessary to get
+     proper C++ debug output.  */
+  if ((TREE_CODE (type) == RECORD_TYPE || TREE_CODE (type) == UNION_TYPE
+       || TREE_CODE (type) == QUAL_UNION_TYPE
+       || TREE_CODE (type) == ENUMERAL_TYPE)
+      && ! use_gnu_debug_info_extensions)
+    /* We must use the same test here as we use twice below when deciding
+       whether to emit a cross-reference.  */
+    if ((TYPE_NAME (type) != 0
+	 && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
+	       && DECL_IGNORED_P (TYPE_NAME (type)))
+	 && !full)
+	|| TYPE_SIZE (type) == 0
+	/* No way in DBX fmt to describe a variable size.  */
+	|| TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
+      {
+	typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
+	return;
+      }
+#endif
+
+  /* Output a definition now.  */
+
+  fprintf (asmfile, "=");
+  CHARS (1);
+
+  /* Mark it as defined, so that if it is self-referent
+     we will not get into an infinite recursion of definitions.  */
+
+  typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_DEFINED;
+
+  switch (TREE_CODE (type))
+    {
+    case VOID_TYPE:
+    case LANG_TYPE:
+      /* For a void type, just define it as itself; ie, "5=5".
+	 This makes us consider it defined
+	 without saying what it is.  The debugger will make it
+	 a void type when the reference is seen, and nothing will
+	 ever override that default.  */
+      fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
+      CHARS (3);
+      break;
+
+    case INTEGER_TYPE:
+      if (type == char_type_node && ! TREE_UNSIGNED (type))
+	/* Output the type `char' as a subrange of itself!
+	   I don't understand this definition, just copied it
+	   from the output of pcc.
+	   This used to use `r2' explicitly and we used to
+	   take care to make sure that `char' was type number 2.  */
+	fprintf (asmfile, "r%d;0;127;", TYPE_SYMTAB_ADDRESS (type));
+      else if (use_gnu_debug_info_extensions
+	       && (TYPE_PRECISION (type) > TYPE_PRECISION (integer_type_node)
+		   || TYPE_PRECISION (type) > HOST_BITS_PER_WIDE_INT))
+	{
+	  /* This used to say `r1' and we used to take care
+	     to make sure that `int' was type number 1.  */
+	  fprintf (asmfile, "r%d;", TYPE_SYMTAB_ADDRESS (integer_type_node));
+	  print_int_cst_octal (TYPE_MIN_VALUE (type));
+	  fprintf (asmfile, ";");
+	  print_int_cst_octal (TYPE_MAX_VALUE (type));
+	  fprintf (asmfile, ";");
+	}
+      else /* Output other integer types as subranges of `int'.  */
+	dbxout_range_type (type);
+      CHARS (25);
+      break;
+
+    case REAL_TYPE:
+      /* This used to say `r1' and we used to take care
+	 to make sure that `int' was type number 1.  */
+      fprintf (asmfile, "r%d;%d;0;", TYPE_SYMTAB_ADDRESS (integer_type_node),
+	       int_size_in_bytes (type));
+      CHARS (16);
+      break;
+
+    case CHAR_TYPE:
+      if (use_gnu_debug_info_extensions)
+	fprintf (asmfile, "@s%d;-20;",
+		 BITS_PER_UNIT * int_size_in_bytes (type));
+      else
+	/* Output the type `char' as a subrange of itself.
+	   That is what pcc seems to do.  */
+      fprintf (asmfile, "r%d;0;%d;", TYPE_SYMTAB_ADDRESS (char_type_node),
+	       TREE_UNSIGNED (type) ? 255 : 127);
+      CHARS (9);
+      break;
+
+    case BOOLEAN_TYPE:
+      if (use_gnu_debug_info_extensions)
+	fprintf (asmfile, "@s%d;-16;",
+		 BITS_PER_UNIT * int_size_in_bytes (type));
+      else /* Define as enumeral type (False, True) */
+	fprintf (asmfile, "eFalse:0,True:1,;");
+      CHARS (17);
+      break;
+
+    case FILE_TYPE:
+      putc ('d', asmfile);
+      CHARS (1);
+      dbxout_type (TREE_TYPE (type), 0, 0);
+      break;
+
+    case COMPLEX_TYPE:
+      /* Differs from the REAL_TYPE by its new data type number */
+
+      if (TREE_CODE (TREE_TYPE (type)) == REAL_TYPE)
+	{
+	  fprintf (asmfile, "r%d;%d;0;",
+		   TYPE_SYMTAB_ADDRESS (type),
+		   int_size_in_bytes (TREE_TYPE (type)));
+	  CHARS (15);		/* The number is probably incorrect here.  */
+	}
+      else
+	{
+	  /* Output a complex integer type as a structure,
+	     pending some other way to do it.  */
+	  fprintf (asmfile, "s%d", int_size_in_bytes (type));
+
+	  fprintf (asmfile, "real:");
+	  CHARS (10);
+	  dbxout_type (TREE_TYPE (type), 0, 0);
+	  fprintf (asmfile, ",%d,%d;",
+		   0, TYPE_PRECISION (TREE_TYPE (type)));
+	  CHARS (8);
+	  fprintf (asmfile, "imag:");
+	  CHARS (5);
+	  dbxout_type (TREE_TYPE (type), 0, 0);
+	  fprintf (asmfile, ",%d,%d;;",
+		   TYPE_PRECISION (TREE_TYPE (type)),
+		   TYPE_PRECISION (TREE_TYPE (type)));
+	  CHARS (9);
+	}
+      break;
+
+    case SET_TYPE:
+      if (use_gnu_debug_info_extensions)
+	{
+	  have_used_extensions = 1;
+	  fprintf (asmfile, "@s%d;",
+		   BITS_PER_UNIT * int_size_in_bytes (type));
+	  /* Check if a bitstring type, which in Chill is
+	     different from a [power]set. */
+	  if (TYPE_STRING_FLAG (type))
+	    fprintf (asmfile, "@S;");
+	}
+      putc ('S', asmfile);
+      CHARS (1);
+      dbxout_type (TYPE_DOMAIN (type), 0, 0);
+      break;
+
+    case ARRAY_TYPE:
+      /* Output "a" followed by a range type definition
+	 for the index type of the array
+	 followed by a reference to the target-type.
+	 ar1;0;N;M for a C array of type M and size N+1.  */
+      /* Check if a character string type, which in Chill is
+	 different from an array of characters. */
+      if (TYPE_STRING_FLAG (type) && use_gnu_debug_info_extensions)
+	{
+	  have_used_extensions = 1;
+	  fprintf (asmfile, "@S;");
+	}
+      tem = TYPE_DOMAIN (type);
+      if (tem == NULL)
+	fprintf (asmfile, "ar%d;0;-1;",
+		 TYPE_SYMTAB_ADDRESS (integer_type_node));
+      else
+	{
+	  fprintf (asmfile, "a");
+	  dbxout_range_type (tem);
+	}
+      CHARS (17);
+      dbxout_type (TREE_TYPE (type), 0, 0);
+      break;
+
+    case RECORD_TYPE:
+    case UNION_TYPE:
+    case QUAL_UNION_TYPE:
+      {
+	int i, n_baseclasses = 0;
+
+	if (TYPE_BINFO (type) != 0 && TYPE_BINFO_BASETYPES (type) != 0)
+	  n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type));
+
+	/* Output a structure type.  We must use the same test here as we
+	   use in the DBX_NO_XREFS case above.  */
+	if ((TYPE_NAME (type) != 0
+	     && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
+		   && DECL_IGNORED_P (TYPE_NAME (type)))
+	     && !full)
+	    || TYPE_SIZE (type) == 0
+	    /* No way in DBX fmt to describe a variable size.  */
+	    || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
+	  {
+	    /* If the type is just a cross reference, output one
+	       and mark the type as partially described.
+	       If it later becomes defined, we will output
+	       its real definition.
+	       If the type has a name, don't nest its definition within
+	       another type's definition; instead, output an xref
+	       and let the definition come when the name is defined.  */
+	    fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "xs" : "xu");
+	    CHARS (3);
+#if 0 /* This assertion is legitimately false in C++.  */
+	    /* We shouldn't be outputting a reference to a type before its
+	       definition unless the type has a tag name.
+	       A typedef name without a tag name should be impossible.  */
+	    if (TREE_CODE (TYPE_NAME (type)) != IDENTIFIER_NODE)
+	      abort ();
+#endif
+	    if (TYPE_NAME (type) != 0)
+	      dbxout_type_name (type);
+	    else
+	      fprintf (asmfile, "$$%d", anonymous_type_number++);
+	    fprintf (asmfile, ":");
+	    typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
+	    break;
+	  }
+
+	/* Identify record or union, and print its size.  */
+	fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "s%d" : "u%d",
+		 int_size_in_bytes (type));
+
+	if (use_gnu_debug_info_extensions)
+	  {
+	    if (n_baseclasses)
+	      {
+		have_used_extensions = 1;
+		fprintf (asmfile, "!%d,", n_baseclasses);
+		CHARS (8);
+	      }
+	  }
+	for (i = 0; i < n_baseclasses; i++)
+	  {
+	    tree child = TREE_VEC_ELT (BINFO_BASETYPES (TYPE_BINFO (type)), i);
+	    if (use_gnu_debug_info_extensions)
+	      {
+		have_used_extensions = 1;
+		putc (TREE_VIA_VIRTUAL (child) ? '1'
+		      : '0',
+		      asmfile);
+		putc (TREE_VIA_PUBLIC (child) ? '2'
+		      : '0',
+		      asmfile);
+		fprintf (asmfile, "%d,",
+			 TREE_INT_CST_LOW (BINFO_OFFSET (child)) * BITS_PER_UNIT);
+		CHARS (15);
+		dbxout_type (BINFO_TYPE (child), 0, 0);
+		putc (';', asmfile);
+	      }
+	    else
+	      {
+		/* Print out the base class information with fields
+		   which have the same names at the types they hold.  */
+		dbxout_type_name (BINFO_TYPE (child));
+		putc (':', asmfile);
+		dbxout_type (BINFO_TYPE (child), full, 0);
+		fprintf (asmfile, ",%d,%d;",
+			 TREE_INT_CST_LOW (BINFO_OFFSET (child)) * BITS_PER_UNIT,
+			 TREE_INT_CST_LOW (DECL_SIZE (TYPE_NAME (BINFO_TYPE (child)))) * BITS_PER_UNIT);
+		CHARS (20);
+	      }
+	  }
+      }
+
+      CHARS (11);
+
+      /* Write out the field declarations.  */
+      dbxout_type_fields (type);
+      if (use_gnu_debug_info_extensions && TYPE_METHODS (type) != NULL_TREE)
+	{
+	  have_used_extensions = 1;
+	  dbxout_type_methods (type);
+	}
+      putc (';', asmfile);
+
+      if (use_gnu_debug_info_extensions && TREE_CODE (type) == RECORD_TYPE
+	  /* Avoid the ~ if we don't really need it--it confuses dbx.  */
+	  && TYPE_VFIELD (type))
+	{
+	  have_used_extensions = 1;
+
+	  /* Tell GDB+ that it may keep reading.  */
+	  putc ('~', asmfile);
+
+	  /* We need to write out info about what field this class
+	     uses as its "main" vtable pointer field, because if this
+	     field is inherited from a base class, GDB cannot necessarily
+	     figure out which field it's using in time.  */
+	  if (TYPE_VFIELD (type))
+	    {
+	      putc ('%', asmfile);
+	      dbxout_type (DECL_FCONTEXT (TYPE_VFIELD (type)), 0, 0);
+	    }
+	  putc (';', asmfile);
+	  CHARS (3);
+	}
+      break;
+
+    case ENUMERAL_TYPE:
+      /* We must use the same test here as we use in the DBX_NO_XREFS case
+	 above.  We simplify it a bit since an enum will never have a variable
+	 size.  */
+      if ((TYPE_NAME (type) != 0
+	   && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
+		 && DECL_IGNORED_P (TYPE_NAME (type)))
+	   && !full)
+	  || TYPE_SIZE (type) == 0)
+	{
+	  fprintf (asmfile, "xe");
+	  CHARS (3);
+	  dbxout_type_name (type);
+	  typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
+	  fprintf (asmfile, ":");
+	  return;
+	}
+#ifdef DBX_OUTPUT_ENUM
+      DBX_OUTPUT_ENUM (asmfile, type);
+#else
+      if (use_gnu_debug_info_extensions
+	  && TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node))
+	fprintf (asmfile, "@s%d;", TYPE_PRECISION (type));
+      putc ('e', asmfile);
+      CHARS (1);
+      for (tem = TYPE_VALUES (type); tem; tem = TREE_CHAIN (tem))
+	{
+	  fprintf (asmfile, "%s:", IDENTIFIER_POINTER (TREE_PURPOSE (tem)));
+	  if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == 0)
+	    fprintf (asmfile, "%lu",
+		     (unsigned long) TREE_INT_CST_LOW (TREE_VALUE (tem)));
+	  else if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == -1
+		   && TREE_INT_CST_LOW (TREE_VALUE (tem)) < 0)
+	    fprintf (asmfile, "%ld",
+		     (long) TREE_INT_CST_LOW (TREE_VALUE (tem)));
+	  else
+	    print_int_cst_octal (TREE_VALUE (tem));
+	  fprintf (asmfile, ",");
+	  CHARS (20 + IDENTIFIER_LENGTH (TREE_PURPOSE (tem)));
+	  if (TREE_CHAIN (tem) != 0)
+	    CONTIN;
+	}
+      putc (';', asmfile);
+      CHARS (1);
+#endif
+      break;
+
+    case POINTER_TYPE:
+      putc ('*', asmfile);
+      CHARS (1);
+      dbxout_type (TREE_TYPE (type), 0, 0);
+      break;
+
+    case METHOD_TYPE:
+      if (use_gnu_debug_info_extensions)
+	{
+	  have_used_extensions = 1;
+	  putc ('#', asmfile);
+	  CHARS (1);
+	  if (flag_minimal_debug && !show_arg_types)
+	    {
+	      /* Normally, just output the return type.
+		 The argument types are encoded in the method name.  */
+	      putc ('#', asmfile);
+	      dbxout_type (TREE_TYPE (type), 0, 0);
+	      putc (';', asmfile);
+	      CHARS (1);
+	    }
+	  else
+	    {
+	      /* When outputting destructors, we need to write
+		 the argument types out longhand.  */
+	      dbxout_type (TYPE_METHOD_BASETYPE (type), 0, 0);
+	      putc (',', asmfile);
+	      CHARS (1);
+	      dbxout_type (TREE_TYPE (type), 0, 0);
+	      dbxout_args (TYPE_ARG_TYPES (type));
+	      putc (';', asmfile);
+	      CHARS (1);
+	    }
+	}
+      else
+	{
+	  /* Treat it as a function type.  */
+	  dbxout_type (TREE_TYPE (type), 0, 0);
+	}
+      break;
+
+    case OFFSET_TYPE:
+      if (use_gnu_debug_info_extensions)
+	{
+	  have_used_extensions = 1;
+	  putc ('@', asmfile);
+	  CHARS (1);
+	  dbxout_type (TYPE_OFFSET_BASETYPE (type), 0, 0);
+	  putc (',', asmfile);
+	  CHARS (1);
+	  dbxout_type (TREE_TYPE (type), 0, 0);
+	}
+      else
+	{
+	  /* Should print as an int, because it is really
+	     just an offset.  */
+	  dbxout_type (integer_type_node, 0, 0);
+	}
+      break;
+
+    case REFERENCE_TYPE:
+      if (use_gnu_debug_info_extensions)
+	have_used_extensions = 1;
+      putc (use_gnu_debug_info_extensions ? '&' : '*', asmfile);
+      CHARS (1);
+      dbxout_type (TREE_TYPE (type), 0, 0);
+      break;
+
+    case FUNCTION_TYPE:
+      putc ('f', asmfile);
+      CHARS (1);
+      dbxout_type (TREE_TYPE (type), 0, 0);
+      break;
+
+    default:
+      abort ();
+    }
+}
+
+/* Print the value of integer constant C, in octal,
+   handling double precision.  */
+
+static void
+print_int_cst_octal (c)
+     tree c;
+{
+  unsigned HOST_WIDE_INT high = TREE_INT_CST_HIGH (c);
+  unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (c);
+  int excess = (3 - (HOST_BITS_PER_WIDE_INT % 3));
+  int width = TYPE_PRECISION (TREE_TYPE (c));
+
+  /* GDB wants constants with no extra leading "1" bits, so
+     we need to remove any sign-extension that might be
+     present.  */
+  if (width == HOST_BITS_PER_WIDE_INT * 2)
+    ;
+  else if (width > HOST_BITS_PER_WIDE_INT)
+    high &= (((HOST_WIDE_INT) 1 << (width - HOST_BITS_PER_WIDE_INT)) - 1);
+  else if (width == HOST_BITS_PER_WIDE_INT)
+    high = 0;
+  else
+    high = 0, low &= (((HOST_WIDE_INT) 1 << width) - 1);
+
+  fprintf (asmfile, "0");
+
+  if (excess == 3)
+    {
+      print_octal (high, HOST_BITS_PER_WIDE_INT / 3);
+      print_octal (low, HOST_BITS_PER_WIDE_INT / 3);
+    }
+  else
+    {
+      unsigned HOST_WIDE_INT beg = high >> excess;
+      unsigned HOST_WIDE_INT middle
+	= ((high & (((HOST_WIDE_INT) 1 << excess) - 1)) << (3 - excess)
+	   | (low >> (HOST_BITS_PER_WIDE_INT / 3 * 3)));
+      unsigned HOST_WIDE_INT end
+	= low & (((unsigned HOST_WIDE_INT) 1
+		  << (HOST_BITS_PER_WIDE_INT / 3 * 3))
+		 - 1);
+
+      fprintf (asmfile, "%o%01o", beg, middle);
+      print_octal (end, HOST_BITS_PER_WIDE_INT / 3);
+    }
+}
+
+static void
+print_octal (value, digits)
+     unsigned HOST_WIDE_INT value;
+     int digits;
+{
+  int i;
+
+  for (i = digits - 1; i >= 0; i--)
+    fprintf (asmfile, "%01o", ((value >> (3 * i)) & 7));
+}
+
+/* Output the name of type TYPE, with no punctuation.
+   Such names can be set up either by typedef declarations
+   or by struct, enum and union tags.  */
+
+static void
+dbxout_type_name (type)
+     register tree type;
+{
+  tree t;
+  if (TYPE_NAME (type) == 0)
+    abort ();
+  if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
+    {
+      t = TYPE_NAME (type);
+    }
+  else if (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL)
+    {
+      t = DECL_NAME (TYPE_NAME (type));
+    }
+  else
+    abort ();
+
+  fprintf (asmfile, "%s", IDENTIFIER_POINTER (t));
+  CHARS (IDENTIFIER_LENGTH (t));
+}
+
+/* Output a .stabs for the symbol defined by DECL,
+   which must be a ..._DECL node in the normal namespace.
+   It may be a CONST_DECL, a FUNCTION_DECL, a PARM_DECL or a VAR_DECL.
+   LOCAL is nonzero if the scope is less than the entire file.  */
+
+void
+dbxout_symbol (decl, local)
+     tree decl;
+     int local;
+{
+  tree type = TREE_TYPE (decl);
+  tree context = NULL_TREE;
+
+  /* Cast avoids warning in old compilers.  */
+  current_sym_code = (STAB_CODE_TYPE) 0;
+  current_sym_value = 0;
+  current_sym_addr = 0;
+
+  /* Ignore nameless syms, but don't ignore type tags.  */
+
+  if ((DECL_NAME (decl) == 0 && TREE_CODE (decl) != TYPE_DECL)
+      || DECL_IGNORED_P (decl))
+    return;
+
+  dbxout_prepare_symbol (decl);
+
+  /* The output will always start with the symbol name,
+     so always count that in the length-output-so-far.  */
+
+  if (DECL_NAME (decl) != 0)
+    current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (decl));
+
+  switch (TREE_CODE (decl))
+    {
+    case CONST_DECL:
+      /* Enum values are defined by defining the enum type.  */
+      break;
+
+    case FUNCTION_DECL:
+      if (DECL_RTL (decl) == 0)
+	return;
+      if (DECL_EXTERNAL (decl))
+	break;
+      /* Don't mention a nested function under its parent.  */
+      context = decl_function_context (decl);
+      if (context == current_function_decl)
+	break;
+      if (GET_CODE (DECL_RTL (decl)) != MEM
+	  || GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF)
+	break;
+      FORCE_TEXT;
+
+      fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
+	       IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)),
+	       TREE_PUBLIC (decl) ? 'F' : 'f');
+
+      current_sym_code = N_FUN;
+      current_sym_addr = XEXP (DECL_RTL (decl), 0);
+
+      if (TREE_TYPE (type))
+	dbxout_type (TREE_TYPE (type), 0, 0);
+      else
+	dbxout_type (void_type_node, 0, 0);
+
+      /* For a nested function, when that function is compiled,
+	 mention the containing function name
+	 as well as (since dbx wants it) our own assembler-name.  */
+      if (context != 0)
+	fprintf (asmfile, ",%s,%s",
+		 IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)),
+		 IDENTIFIER_POINTER (DECL_NAME (context)));
+
+      dbxout_finish_symbol (decl);
+      break;
+
+    case TYPE_DECL:
+#if 0
+      /* This seems all wrong.  Outputting most kinds of types gives no name
+	 at all.  A true definition gives no name; a cross-ref for a
+	 structure can give the tag name, but not a type name.
+	 It seems that no typedef name is defined by outputting a type.  */
+
+      /* If this typedef name was defined by outputting the type,
+	 don't duplicate it.  */
+      if (typevec[TYPE_SYMTAB_ADDRESS (type)] == TYPE_DEFINED
+	  && TYPE_NAME (TREE_TYPE (decl)) == decl)
+	return;
+#endif
+      /* Don't output the same typedef twice.
+         And don't output what language-specific stuff doesn't want output.  */
+      if (TREE_ASM_WRITTEN (decl) || TYPE_DECL_SUPPRESS_DEBUG (decl))
+	return;
+
+      FORCE_TEXT;
+
+      {
+	int tag_needed = 1;
+	int did_output = 0;
+
+	if (DECL_NAME (decl))
+	  {
+	    /* Nonzero means we must output a tag as well as a typedef.  */
+	    tag_needed = 0;
+
+	    /* Handle the case of a C++ structure or union
+	       where the TYPE_NAME is a TYPE_DECL
+	       which gives both a typedef name and a tag.  */
+	    /* dbx requires the tag first and the typedef second.  */
+	    if ((TREE_CODE (type) == RECORD_TYPE
+		 || TREE_CODE (type) == UNION_TYPE
+		 || TREE_CODE (type) == QUAL_UNION_TYPE)
+		&& TYPE_NAME (type) == decl
+		&& !(use_gnu_debug_info_extensions && have_used_extensions)
+		&& !TREE_ASM_WRITTEN (TYPE_NAME (type))
+		/* Distinguish the implicit typedefs of C++
+		   from explicit ones that might be found in C.  */
+                && (!strcmp (lang_identify (), "cplusplus") 
+		    /* The following line maybe unnecessary;
+		       in 2.6, try removing it.  */
+		    || DECL_SOURCE_LINE (decl) == 0))
+	      {
+		tree name = TYPE_NAME (type);
+		if (TREE_CODE (name) == TYPE_DECL)
+		  name = DECL_NAME (name);
+
+		current_sym_code = DBX_TYPE_DECL_STABS_CODE;
+		current_sym_value = 0;
+		current_sym_addr = 0;
+		current_sym_nchars = 2 + IDENTIFIER_LENGTH (name);
+
+		fprintf (asmfile, "%s \"%s:T", ASM_STABS_OP,
+			 IDENTIFIER_POINTER (name));
+		dbxout_type (type, 1, 0);
+		dbxout_finish_symbol (NULL_TREE);
+	      }
+
+	    /* Output typedef name.  */
+	    fprintf (asmfile, "%s \"%s:", ASM_STABS_OP,
+		     IDENTIFIER_POINTER (DECL_NAME (decl)));
+
+	    /* Short cut way to output a tag also.  */
+	    if ((TREE_CODE (type) == RECORD_TYPE
+		 || TREE_CODE (type) == UNION_TYPE
+		 || TREE_CODE (type) == QUAL_UNION_TYPE)
+		&& TYPE_NAME (type) == decl)
+	      {
+		if (use_gnu_debug_info_extensions && have_used_extensions)
+		  {
+		    putc ('T', asmfile);
+		    TREE_ASM_WRITTEN (TYPE_NAME (type)) = 1;
+		  }
+#if 0 /* Now we generate the tag for this case up above.  */
+		else
+		  tag_needed = 1;
+#endif
+	      }
+
+	    putc ('t', asmfile);
+	    current_sym_code = DBX_TYPE_DECL_STABS_CODE;
+
+	    dbxout_type (type, 1, 0);
+	    dbxout_finish_symbol (decl);
+	    did_output = 1;
+	  }
+
+	/* Don't output a tag if this is an incomplete type (TYPE_SIZE is
+	   zero).  This prevents the sun4 Sun OS 4.x dbx from crashing.  */ 
+
+	if (tag_needed && TYPE_NAME (type) != 0
+	    && (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE
+		|| (DECL_NAME (TYPE_NAME (type)) != 0))
+	    && TYPE_SIZE (type) != 0
+	    && !TREE_ASM_WRITTEN (TYPE_NAME (type)))
+	  {
+	    /* For a TYPE_DECL with no name, but the type has a name,
+	       output a tag.
+	       This is what represents `struct foo' with no typedef.  */
+	    /* In C++, the name of a type is the corresponding typedef.
+	       In C, it is an IDENTIFIER_NODE.  */
+	    tree name = TYPE_NAME (type);
+	    if (TREE_CODE (name) == TYPE_DECL)
+	      name = DECL_NAME (name);
+
+	    current_sym_code = DBX_TYPE_DECL_STABS_CODE;
+	    current_sym_value = 0;
+	    current_sym_addr = 0;
+	    current_sym_nchars = 2 + IDENTIFIER_LENGTH (name);
+
+	    fprintf (asmfile, "%s \"%s:T", ASM_STABS_OP,
+		     IDENTIFIER_POINTER (name));
+	    dbxout_type (type, 1, 0);
+	    dbxout_finish_symbol (NULL_TREE);
+	    did_output = 1;
+	  }
+
+	/* If an enum type has no name, it cannot be referred to,
+	   but we must output it anyway, since the enumeration constants
+	   can be referred to.  */
+	if (!did_output && TREE_CODE (type) == ENUMERAL_TYPE)
+	  {
+	    current_sym_code = DBX_TYPE_DECL_STABS_CODE;
+	    current_sym_value = 0;
+	    current_sym_addr = 0;
+	    current_sym_nchars = 2;
+
+	    /* Some debuggers fail when given NULL names, so give this a
+	       harmless name of ` '.  */
+	    fprintf (asmfile, "%s \" :T", ASM_STABS_OP);
+	    dbxout_type (type, 1, 0);
+	    dbxout_finish_symbol (NULL_TREE);
+	  }
+
+	/* Prevent duplicate output of a typedef.  */
+	TREE_ASM_WRITTEN (decl) = 1;
+	break;
+      }
+
+    case PARM_DECL:
+      /* Parm decls go in their own separate chains
+	 and are output by dbxout_reg_parms and dbxout_parms.  */
+      abort ();
+
+    case RESULT_DECL:
+      /* Named return value, treat like a VAR_DECL.  */
+    case VAR_DECL:
+      if (DECL_RTL (decl) == 0)
+	return;
+      /* Don't mention a variable that is external.
+	 Let the file that defines it describe it.  */
+      if (DECL_EXTERNAL (decl))
+	break;
+
+      /* If the variable is really a constant
+	 and not written in memory, inform the debugger.  */
+      if (TREE_STATIC (decl) && TREE_READONLY (decl)
+	  && DECL_INITIAL (decl) != 0
+	  && ! TREE_ASM_WRITTEN (decl)
+	  && (DECL_FIELD_CONTEXT (decl) == NULL_TREE
+	      || TREE_CODE (DECL_FIELD_CONTEXT (decl)) == BLOCK))
+	{
+	  if (TREE_PUBLIC (decl) == 0)
+	    {
+	      /* The sun4 assembler does not grok this.  */
+	      char *name = IDENTIFIER_POINTER (DECL_NAME (decl));
+	      if (TREE_CODE (TREE_TYPE (decl)) == INTEGER_TYPE
+		  || TREE_CODE (TREE_TYPE (decl)) == ENUMERAL_TYPE)
+		{
+		  HOST_WIDE_INT ival = TREE_INT_CST_LOW (DECL_INITIAL (decl));
+#ifdef DBX_OUTPUT_CONSTANT_SYMBOL
+		  DBX_OUTPUT_CONSTANT_SYMBOL (asmfile, name, ival);
+#else
+		  fprintf (asmfile, "%s \"%s:c=i%d\",0x%x,0,0,0\n",
+			   ASM_STABS_OP, name, ival, N_LSYM);
+#endif
+		  return;
+		}
+	      else if (TREE_CODE (TREE_TYPE (decl)) == REAL_TYPE)
+		{
+		  /* don't know how to do this yet.  */
+		}
+	      break;
+	    }
+	  /* else it is something we handle like a normal variable.  */
+	}
+
+      DECL_RTL (decl) = eliminate_regs (DECL_RTL (decl), 0, NULL_RTX);
+#ifdef LEAF_REG_REMAP
+      if (leaf_function)
+	leaf_renumber_regs_insn (DECL_RTL (decl));
+#endif
+
+      dbxout_symbol_location (decl, type, 0, DECL_RTL (decl));
+    }
+}
+
+/* Output the stab for DECL, a VAR_DECL, RESULT_DECL or PARM_DECL.
+   Add SUFFIX to its name, if SUFFIX is not 0.
+   Describe the variable as residing in HOME
+   (usually HOME is DECL_RTL (DECL), but not always).  */
+
+static void
+dbxout_symbol_location (decl, type, suffix, home)
+     tree decl, type;
+     char *suffix;
+     rtx home;
+{
+  int letter = 0;
+  int regno = -1;
+
+  /* Don't mention a variable at all
+     if it was completely optimized into nothingness.
+     
+     If the decl was from an inline function, then it's rtl
+     is not identically the rtl that was used in this
+     particular compilation.  */
+  if (GET_CODE (home) == REG)
+    {
+      regno = REGNO (home);
+      if (regno >= FIRST_PSEUDO_REGISTER)
+	return;
+    }
+  else if (GET_CODE (home) == SUBREG)
+    {
+      rtx value = home;
+      int offset = 0;
+      while (GET_CODE (value) == SUBREG)
+	{
+	  offset += SUBREG_WORD (value);
+	  value = SUBREG_REG (value);
+	}
+      if (GET_CODE (value) == REG)
+	{
+	  regno = REGNO (value);
+	  if (regno >= FIRST_PSEUDO_REGISTER)
+	    return;
+	  regno += offset;
+	}
+      alter_subreg (home);
+    }
+
+  /* The kind-of-variable letter depends on where
+     the variable is and on the scope of its name:
+     G and N_GSYM for static storage and global scope,
+     S for static storage and file scope,
+     V for static storage and local scope,
+     for those two, use N_LCSYM if data is in bss segment,
+     N_STSYM if in data segment, N_FUN otherwise.
+     (We used N_FUN originally, then changed to N_STSYM
+     to please GDB.  However, it seems that confused ld.
+     Now GDB has been fixed to like N_FUN, says Kingdon.)
+     no letter at all, and N_LSYM, for auto variable,
+     r and N_RSYM for register variable.  */
+
+  if (GET_CODE (home) == MEM
+      && GET_CODE (XEXP (home, 0)) == SYMBOL_REF)
+    {
+      if (TREE_PUBLIC (decl))
+	{
+	  letter = 'G';
+	  current_sym_code = N_GSYM;
+	}
+      else
+	{
+	  current_sym_addr = XEXP (home, 0);
+
+	  letter = decl_function_context (decl) ? 'V' : 'S';
+
+	  /* This should be the same condition as in assemble_variable, but
+	     we don't have access to dont_output_data here.  So, instead,
+	     we rely on the fact that error_mark_node initializers always
+	     end up in bss for C++ and never end up in bss for C.  */
+	  if (DECL_INITIAL (decl) == 0
+	      || (!strcmp (lang_identify (), "cplusplus")
+		  && DECL_INITIAL (decl) == error_mark_node))
+	    current_sym_code = N_LCSYM;
+	  else if (DECL_IN_TEXT_SECTION (decl))
+	    /* This is not quite right, but it's the closest
+	       of all the codes that Unix defines.  */
+	    current_sym_code = DBX_STATIC_CONST_VAR_CODE;
+	  else
+	    {
+	      /* Ultrix `as' seems to need this.  */
+#ifdef DBX_STATIC_STAB_DATA_SECTION
+	      data_section ();
+#endif
+	      current_sym_code = N_STSYM;
+	    }
+	}
+    }
+  else if (regno >= 0)
+    {
+      letter = 'r';
+      current_sym_code = N_RSYM;
+      current_sym_value = DBX_REGISTER_NUMBER (regno);
+    }
+  else if (GET_CODE (home) == MEM
+	   && (GET_CODE (XEXP (home, 0)) == MEM
+	       || (GET_CODE (XEXP (home, 0)) == REG
+		   && REGNO (XEXP (home, 0)) != HARD_FRAME_POINTER_REGNUM)))
+    /* If the value is indirect by memory or by a register
+       that isn't the frame pointer
+       then it means the object is variable-sized and address through
+       that register or stack slot.  DBX has no way to represent this
+       so all we can do is output the variable as a pointer.
+       If it's not a parameter, ignore it.
+       (VAR_DECLs like this can be made by integrate.c.)  */
+    {
+      if (GET_CODE (XEXP (home, 0)) == REG)
+	{
+	  letter = 'r';
+	  current_sym_code = N_RSYM;
+	  current_sym_value = DBX_REGISTER_NUMBER (REGNO (XEXP (home, 0)));
+	}
+      else
+	{
+	  current_sym_code = N_LSYM;
+	  /* RTL looks like (MEM (MEM (PLUS (REG...) (CONST_INT...)))).
+	     We want the value of that CONST_INT.  */
+	  current_sym_value
+	    = DEBUGGER_AUTO_OFFSET (XEXP (XEXP (home, 0), 0));
+	}
+
+      /* Effectively do build_pointer_type, but don't cache this type,
+	 since it might be temporary whereas the type it points to
+	 might have been saved for inlining.  */
+      /* Don't use REFERENCE_TYPE because dbx can't handle that.  */
+      type = make_node (POINTER_TYPE);
+      TREE_TYPE (type) = TREE_TYPE (decl);
+    }
+  else if (GET_CODE (home) == MEM
+	   && GET_CODE (XEXP (home, 0)) == REG)
+    {
+      current_sym_code = N_LSYM;
+      current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0));
+    }
+  else if (GET_CODE (home) == MEM
+	   && GET_CODE (XEXP (home, 0)) == PLUS
+	   && GET_CODE (XEXP (XEXP (home, 0), 1)) == CONST_INT)
+    {
+      current_sym_code = N_LSYM;
+      /* RTL looks like (MEM (PLUS (REG...) (CONST_INT...)))
+	 We want the value of that CONST_INT.  */
+      current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0));
+    }
+  else if (GET_CODE (home) == MEM
+	   && GET_CODE (XEXP (home, 0)) == CONST)
+    {
+      /* Handle an obscure case which can arise when optimizing and
+	 when there are few available registers.  (This is *always*
+	 the case for i386/i486 targets).  The RTL looks like
+	 (MEM (CONST ...)) even though this variable is a local `auto'
+	 or a local `register' variable.  In effect, what has happened
+	 is that the reload pass has seen that all assignments and
+	 references for one such a local variable can be replaced by
+	 equivalent assignments and references to some static storage
+	 variable, thereby avoiding the need for a register.  In such
+	 cases we're forced to lie to debuggers and tell them that
+	 this variable was itself `static'.  */
+      current_sym_code = N_LCSYM;
+      letter = 'V';
+      current_sym_addr = XEXP (XEXP (home, 0), 0);
+    }
+  else if (GET_CODE (home) == CONCAT)
+    {
+      tree subtype = TREE_TYPE (type);
+
+      /* If the variable's storage is in two parts,
+	 output each as a separate stab with a modified name.  */
+      if (WORDS_BIG_ENDIAN)
+	dbxout_symbol_location (decl, subtype, "$imag", XEXP (home, 0));
+      else
+	dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 0));
+
+      /* Cast avoids warning in old compilers.  */
+      current_sym_code = (STAB_CODE_TYPE) 0;
+      current_sym_value = 0;
+      current_sym_addr = 0;
+      dbxout_prepare_symbol (decl);
+
+      if (WORDS_BIG_ENDIAN)
+	dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 1));
+      else
+	dbxout_symbol_location (decl, subtype, "$imag", XEXP (home, 1));
+      return;
+    }
+  else
+    /* Address might be a MEM, when DECL is a variable-sized object.
+       Or it might be const0_rtx, meaning previous passes
+       want us to ignore this variable.  */
+    return;
+
+  /* Ok, start a symtab entry and output the variable name.  */
+  FORCE_TEXT;
+
+#ifdef DBX_STATIC_BLOCK_START
+  DBX_STATIC_BLOCK_START (asmfile, current_sym_code);
+#endif
+
+  dbxout_symbol_name (decl, suffix, letter);
+  dbxout_type (type, 0, 0);
+  dbxout_finish_symbol (decl);
+
+#ifdef DBX_STATIC_BLOCK_END
+  DBX_STATIC_BLOCK_END (asmfile, current_sym_code);
+#endif
+}
+
+/* Output the symbol name of DECL for a stabs, with suffix SUFFIX.
+   Then output LETTER to indicate the kind of location the symbol has.  */
+
+static void
+dbxout_symbol_name (decl, suffix, letter)
+     tree decl;
+     char *suffix;
+     int letter;
+{
+  /* One slight hitch: if this is a VAR_DECL which is a static
+     class member, we must put out the mangled name instead of the
+     DECL_NAME.  Note also that static member (variable) names DO NOT begin
+     with underscores in .stabs directives.  */
+  char *name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
+  if (name == 0)
+    name = "(anon)";
+  fprintf (asmfile, "%s \"%s%s:", ASM_STABS_OP, name,
+	   (suffix ? suffix : ""));
+
+  if (letter) putc (letter, asmfile);
+}
+
+static void
+dbxout_prepare_symbol (decl)
+     tree decl;
+{
+#ifdef WINNING_GDB
+  char *filename = DECL_SOURCE_FILE (decl);
+
+  dbxout_source_file (asmfile, filename);
+#endif
+}
+
+static void
+dbxout_finish_symbol (sym)
+     tree sym;
+{
+#ifdef DBX_FINISH_SYMBOL
+  DBX_FINISH_SYMBOL (sym);
+#else
+  int line = 0;
+  if (use_gnu_debug_info_extensions && sym != 0)
+    line = DECL_SOURCE_LINE (sym);
+
+  fprintf (asmfile, "\",%d,0,%d,", current_sym_code, line);
+  if (current_sym_addr)
+    output_addr_const (asmfile, current_sym_addr);
+  else
+    fprintf (asmfile, "%d", current_sym_value);
+  putc ('\n', asmfile);
+#endif
+}
+
+/* Output definitions of all the decls in a chain.  */
+
+void
+dbxout_syms (syms)
+     tree syms;
+{
+  while (syms)
+    {
+      dbxout_symbol (syms, 1);
+      syms = TREE_CHAIN (syms);
+    }
+}
+
+/* The following two functions output definitions of function parameters.
+   Each parameter gets a definition locating it in the parameter list.
+   Each parameter that is a register variable gets a second definition
+   locating it in the register.
+
+   Printing or argument lists in gdb uses the definitions that
+   locate in the parameter list.  But reference to the variable in
+   expressions uses preferentially the definition as a register.  */
+
+/* Output definitions, referring to storage in the parmlist,
+   of all the parms in PARMS, which is a chain of PARM_DECL nodes.  */
+
+void
+dbxout_parms (parms)
+     tree parms;
+{
+  for (; parms; parms = TREE_CHAIN (parms))
+    if (DECL_NAME (parms) && TREE_TYPE (parms) != error_mark_node)
+      {
+	dbxout_prepare_symbol (parms);
+
+	/* Perform any necessary register eliminations on the parameter's rtl,
+	   so that the debugging output will be accurate.  */
+	DECL_INCOMING_RTL (parms)
+	  = eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX);
+	DECL_RTL (parms) = eliminate_regs (DECL_RTL (parms), 0, NULL_RTX);
+#ifdef LEAF_REG_REMAP
+	if (leaf_function)
+	  {
+	    leaf_renumber_regs_insn (DECL_INCOMING_RTL (parms));
+	    leaf_renumber_regs_insn (DECL_RTL (parms));
+	  }
+#endif
+
+	if (PARM_PASSED_IN_MEMORY (parms))
+	  {
+	    rtx addr = XEXP (DECL_INCOMING_RTL (parms), 0);
+
+	    /* ??? Here we assume that the parm address is indexed
+	       off the frame pointer or arg pointer.
+	       If that is not true, we produce meaningless results,
+	       but do not crash.  */
+	    if (GET_CODE (addr) == PLUS
+		&& GET_CODE (XEXP (addr, 1)) == CONST_INT)
+	      current_sym_value = INTVAL (XEXP (addr, 1));
+	    else
+	      current_sym_value = 0;
+
+	    current_sym_code = N_PSYM;
+	    current_sym_addr = 0;
+
+	    FORCE_TEXT;
+	    if (DECL_NAME (parms))
+	      {
+		current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
+
+		fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
+			 IDENTIFIER_POINTER (DECL_NAME (parms)),
+			 DBX_MEMPARM_STABS_LETTER);
+	      }
+	    else
+	      {
+		current_sym_nchars = 8;
+		fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
+			 DBX_MEMPARM_STABS_LETTER);
+	      }
+
+	    dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
+	    current_sym_value = DEBUGGER_ARG_OFFSET (current_sym_value, addr);
+	    dbxout_finish_symbol (parms);
+	  }
+	else if (GET_CODE (DECL_RTL (parms)) == REG)
+	  {
+	    rtx best_rtl;
+	    char regparm_letter;
+	    tree parm_type;
+	    /* Parm passed in registers and lives in registers or nowhere.  */
+
+	    current_sym_code = DBX_REGPARM_STABS_CODE;
+	    regparm_letter = DBX_REGPARM_STABS_LETTER;
+	    current_sym_addr = 0;
+
+	    /* If parm lives in a register, use that register;
+	       pretend the parm was passed there.  It would be more consistent
+	       to describe the register where the parm was passed,
+	       but in practice that register usually holds something else.
+
+	       If we use DECL_RTL, then we must use the declared type of
+	       the variable, not the type that it arrived in.  */
+	    if (REGNO (DECL_RTL (parms)) >= 0
+		&& REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
+	      {
+		best_rtl = DECL_RTL (parms);
+		parm_type = TREE_TYPE (parms);
+	      }
+	    /* If the parm lives nowhere, use the register where it was
+	       passed.  It is also better to use the declared type here.  */
+	    else
+	      {
+		best_rtl = DECL_INCOMING_RTL (parms);
+		parm_type = TREE_TYPE (parms);
+	      }
+	    current_sym_value = DBX_REGISTER_NUMBER (REGNO (best_rtl));
+
+	    FORCE_TEXT;
+	    if (DECL_NAME (parms))
+	      {
+		current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
+		fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
+			 IDENTIFIER_POINTER (DECL_NAME (parms)),
+			 regparm_letter);
+	      }
+	    else
+	      {
+		current_sym_nchars = 8;
+		fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
+			 regparm_letter);
+	      }
+
+	    dbxout_type (parm_type, 0, 0);
+	    dbxout_finish_symbol (parms);
+	  }
+	else if (GET_CODE (DECL_RTL (parms)) == MEM
+		 && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
+		 && REGNO (XEXP (DECL_RTL (parms), 0)) != HARD_FRAME_POINTER_REGNUM
+		 && REGNO (XEXP (DECL_RTL (parms), 0)) != STACK_POINTER_REGNUM
+#if ARG_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
+		 && REGNO (XEXP (DECL_RTL (parms), 0)) != ARG_POINTER_REGNUM
+#endif
+		 )
+	  {
+	    /* Parm was passed via invisible reference.
+	       That is, its address was passed in a register.
+	       Output it as if it lived in that register.
+	       The debugger will know from the type
+	       that it was actually passed by invisible reference.  */
+
+	    char regparm_letter;
+	    /* Parm passed in registers and lives in registers or nowhere.  */
+
+	    current_sym_code = DBX_REGPARM_STABS_CODE;
+	    if (use_gnu_debug_info_extensions)
+	      regparm_letter = GDB_INV_REF_REGPARM_STABS_LETTER;
+	    else
+	      regparm_letter = DBX_REGPARM_STABS_LETTER;
+
+	    /* DECL_RTL looks like (MEM (REG...).  Get the register number.
+	       If it is an unallocated pseudo-reg, then use the register where
+	       it was passed instead.  */
+	    if (REGNO (XEXP (DECL_RTL (parms), 0)) >= 0
+		&& REGNO (XEXP (DECL_RTL (parms), 0)) < FIRST_PSEUDO_REGISTER)
+	      current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0));
+	    else
+	      current_sym_value = REGNO (DECL_INCOMING_RTL (parms));
+
+	    current_sym_addr = 0;
+
+	    FORCE_TEXT;
+	    if (DECL_NAME (parms))
+	      {
+		current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));
+
+		fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
+			 IDENTIFIER_POINTER (DECL_NAME (parms)),
+			 regparm_letter);
+	      }
+	    else
+	      {
+		current_sym_nchars = 8;
+		fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
+			 regparm_letter);
+	      }
+
+	    dbxout_type (TREE_TYPE (parms), 0, 0);
+	    dbxout_finish_symbol (parms);
+	  }
+	else if (GET_CODE (DECL_RTL (parms)) == MEM
+		 && XEXP (DECL_RTL (parms), 0) != const0_rtx
+		 /* ??? A constant address for a parm can happen
+		    when the reg it lives in is equiv to a constant in memory.
+		    Should make this not happen, after 2.4.  */
+		 && ! CONSTANT_P (XEXP (DECL_RTL (parms), 0)))
+	  {
+	    /* Parm was passed in registers but lives on the stack.  */
+
+	    current_sym_code = N_PSYM;
+	    /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...))),
+	       in which case we want the value of that CONST_INT,
+	       or (MEM (REG ...)) or (MEM (MEM ...)),
+	       in which case we use a value of zero.  */
+	    if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
+		|| GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM)
+	      current_sym_value = 0;
+	    else
+	      current_sym_value = INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1));
+	    current_sym_addr = 0;
+
+	    FORCE_TEXT;
+	    if (DECL_NAME (parms))
+	      {
+		current_sym_nchars = 2 + strlen (IDENTIFIER_POINTER (DECL_NAME (parms)));
+
+		fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
+			 IDENTIFIER_POINTER (DECL_NAME (parms)),
+			 DBX_MEMPARM_STABS_LETTER);
+	      }
+	    else
+	      {
+		current_sym_nchars = 8;
+		fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
+		DBX_MEMPARM_STABS_LETTER);
+	      }
+
+	    current_sym_value
+	      = DEBUGGER_ARG_OFFSET (current_sym_value,
+				     XEXP (DECL_RTL (parms), 0));
+	    dbxout_type (TREE_TYPE (parms), 0, 0);
+	    dbxout_finish_symbol (parms);
+	  }
+      }
+}
+
+/* Output definitions for the places where parms live during the function,
+   when different from where they were passed, when the parms were passed
+   in memory.
+
+   It is not useful to do this for parms passed in registers
+   that live during the function in different registers, because it is
+   impossible to look in the passed register for the passed value,
+   so we use the within-the-function register to begin with.
+
+   PARMS is a chain of PARM_DECL nodes.  */
+
+void
+dbxout_reg_parms (parms)
+     tree parms;
+{
+  for (; parms; parms = TREE_CHAIN (parms))
+    if (DECL_NAME (parms) && PARM_PASSED_IN_MEMORY (parms))
+      {
+	dbxout_prepare_symbol (parms);
+
+	/* Report parms that live in registers during the function
+	   but were passed in memory.  */
+	if (GET_CODE (DECL_RTL (parms)) == REG
+	    && REGNO (DECL_RTL (parms)) >= 0
+	    && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
+	  dbxout_symbol_location (parms, TREE_TYPE (parms),
+				  0, DECL_RTL (parms));
+	else if (GET_CODE (DECL_RTL (parms)) == CONCAT)
+	  dbxout_symbol_location (parms, TREE_TYPE (parms),
+				  0, DECL_RTL (parms));
+	/* Report parms that live in memory but not where they were passed.  */
+	else if (GET_CODE (DECL_RTL (parms)) == MEM
+		 && ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms)))
+	  dbxout_symbol_location (parms, TREE_TYPE (parms),
+				  0, DECL_RTL (parms));
+      }
+}
+
+/* Given a chain of ..._TYPE nodes (as come in a parameter list),
+   output definitions of those names, in raw form */
+
+void
+dbxout_args (args)
+     tree args;
+{
+  while (args)
+    {
+      putc (',', asmfile);
+      dbxout_type (TREE_VALUE (args), 0, 0);
+      CHARS (1);
+      args = TREE_CHAIN (args);
+    }
+}
+
+/* Given a chain of ..._TYPE nodes,
+   find those which have typedef names and output those names.
+   This is to ensure those types get output.  */
+
+void
+dbxout_types (types)
+     register tree types;
+{
+  while (types)
+    {
+      if (TYPE_NAME (types)
+	  && TREE_CODE (TYPE_NAME (types)) == TYPE_DECL
+	  && ! TREE_ASM_WRITTEN (TYPE_NAME (types)))
+	dbxout_symbol (TYPE_NAME (types), 1);
+      types = TREE_CHAIN (types);
+    }
+}
+
+/* Output everything about a symbol block (a BLOCK node
+   that represents a scope level),
+   including recursive output of contained blocks.
+
+   BLOCK is the BLOCK node.
+   DEPTH is its depth within containing symbol blocks.
+   ARGS is usually zero; but for the outermost block of the
+   body of a function, it is a chain of PARM_DECLs for the function parameters.
+   We output definitions of all the register parms
+   as if they were local variables of that block.
+
+   If -g1 was used, we count blocks just the same, but output nothing
+   except for the outermost block.
+
+   Actually, BLOCK may be several blocks chained together.
+   We handle them all in sequence.  */
+
+static void
+dbxout_block (block, depth, args)
+     register tree block;
+     int depth;
+     tree args;
+{
+  int blocknum;
+
+  while (block)
+    {
+      /* Ignore blocks never expanded or otherwise marked as real.  */
+      if (TREE_USED (block))
+	{
+#ifndef DBX_LBRAC_FIRST
+	  /* In dbx format, the syms of a block come before the N_LBRAC.  */
+	  if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0)
+	    dbxout_syms (BLOCK_VARS (block));
+	  if (args)
+	    dbxout_reg_parms (args);
+#endif
+
+	  /* Now output an N_LBRAC symbol to represent the beginning of
+	     the block.  Use the block's tree-walk order to generate
+	     the assembler symbols LBBn and LBEn
+	     that final will define around the code in this block.  */
+	  if (depth > 0 && debug_info_level != DINFO_LEVEL_TERSE)
+	    {
+	      char buf[20];
+	      blocknum = next_block_number++;
+	      ASM_GENERATE_INTERNAL_LABEL (buf, "LBB", blocknum);
+
+	      if (BLOCK_HANDLER_BLOCK (block))
+		{
+		  /* A catch block.  Must precede N_LBRAC.  */
+		  tree decl = BLOCK_VARS (block);
+		  while (decl)
+		    {
+#ifdef DBX_OUTPUT_CATCH
+		      DBX_OUTPUT_CATCH (asmfile, decl, buf);
+#else
+		      fprintf (asmfile, "%s \"%s:C1\",%d,0,0,", ASM_STABS_OP,
+			       IDENTIFIER_POINTER (DECL_NAME (decl)), N_CATCH);
+		      assemble_name (asmfile, buf);
+		      fprintf (asmfile, "\n");
+#endif
+		      decl = TREE_CHAIN (decl);
+		    }
+		}
+
+#ifdef DBX_OUTPUT_LBRAC
+	      DBX_OUTPUT_LBRAC (asmfile, buf);
+#else
+	      fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC);
+	      assemble_name (asmfile, buf);
+#if DBX_BLOCKS_FUNCTION_RELATIVE
+	      fputc ('-', asmfile);
+	      assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));
+#endif
+	      fprintf (asmfile, "\n");
+#endif
+	    }
+	  else if (depth > 0)
+	    /* Count blocks the same way regardless of debug_info_level.  */
+	    next_block_number++;
+
+#ifdef DBX_LBRAC_FIRST
+	  /* On some weird machines, the syms of a block
+	     come after the N_LBRAC.  */
+	  if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0)
+	    dbxout_syms (BLOCK_VARS (block));
+	  if (args)
+	    dbxout_reg_parms (args);
+#endif
+
+	  /* Output the subblocks.  */
+	  dbxout_block (BLOCK_SUBBLOCKS (block), depth + 1, NULL_TREE);
+
+	  /* Refer to the marker for the end of the block.  */
+	  if (depth > 0 && debug_info_level != DINFO_LEVEL_TERSE)
+	    {
+	      char buf[20];
+	      ASM_GENERATE_INTERNAL_LABEL (buf, "LBE", blocknum);
+#ifdef DBX_OUTPUT_RBRAC
+	      DBX_OUTPUT_RBRAC (asmfile, buf);
+#else
+	      fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC);
+	      assemble_name (asmfile, buf);
+#if DBX_BLOCKS_FUNCTION_RELATIVE
+	      fputc ('-', asmfile);
+	      assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));
+#endif
+	      fprintf (asmfile, "\n");
+#endif
+	    }
+	}
+      block = BLOCK_CHAIN (block);
+    }
+}
+
+/* Output the information about a function and its arguments and result.
+   Usually this follows the function's code,
+   but on some systems, it comes before.  */
+
+static void
+dbxout_really_begin_function (decl)
+     tree decl;
+{
+  dbxout_symbol (decl, 0);
+  dbxout_parms (DECL_ARGUMENTS (decl));
+  if (DECL_NAME (DECL_RESULT (decl)) != 0)
+    dbxout_symbol (DECL_RESULT (decl), 1);
+}
+
+/* Called at beginning of output of function definition.  */
+
+void
+dbxout_begin_function (decl)
+     tree decl;
+{
+#ifdef DBX_FUNCTION_FIRST
+  dbxout_really_begin_function (decl);
+#endif
+}
+
+/* Output dbx data for a function definition.
+   This includes a definition of the function name itself (a symbol),
+   definitions of the parameters (locating them in the parameter list)
+   and then output the block that makes up the function's body
+   (including all the auto variables of the function).  */
+
+void
+dbxout_function (decl)
+     tree decl;
+{
+#ifndef DBX_FUNCTION_FIRST
+  dbxout_really_begin_function (decl);
+#endif
+  dbxout_block (DECL_INITIAL (decl), 0, DECL_ARGUMENTS (decl));
+#ifdef DBX_OUTPUT_FUNCTION_END
+  DBX_OUTPUT_FUNCTION_END (asmfile, decl);
+#endif
+}
+#endif /* DBX_DEBUGGING_INFO */