Changes to make ld demangle C++ symbol names before printing

error messages containing them.

Reviewed by:	Peter Wemm

1 files changed, 0 insertions, 975 deletions

diff --git a/gnu/usr.bin/ld/cplus-dem.c b/gnu/usr.bin/ld/cplus-dem.c
deleted file mode 100644
index 27f56ef..0000000
--- a/gnu/usr.bin/ld/cplus-dem.c
+++ /dev/null
@@ -1,975 +0,0 @@
-/*-
- * This code is derived from software copyrighted by the Free Software
- * Foundation.
- */
-
-#ifndef lint
-/*static char sccsid[] = "from: @(#)cplus-dem.c	5.4 (Berkeley) 4/30/91";*/
-static char rcsid[] = "$Id: cplus-dem.c,v 1.3 1993/11/09 04:18:51 paul Exp $";
-#endif /* not lint */
-
-/* Demangler for GNU C++
-   Copyright (C) 1989 Free Software Foundation, Inc.
-   written by James Clark (jjc@jclark.uucp)
-
-   This program 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 1, or (at your option)
-   any later version.
-
-   This program 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 this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-/* This is for g++ 1.36.1 (November 6 version). It will probably
-   require changes for any other version.
-
-   Modified for g++ 1.36.2 (November 18 version).  */
-
-/* This file exports one function
-
-   char *cplus_demangle (const char *name)
-
-   If `name' is a mangled function name produced by g++, then
-   a pointer to a malloced string giving a C++ representation
-   of the name will be returned; otherwise NULL will be returned.
-   It is the caller's responsibility to free the string which
-   is returned.
-
-   For example,
-
-   cplus_demangle ("_foo__1Ai")
-
-   returns
-
-   "A::foo(int)"
-
-   This file imports xmalloc and xrealloc, which are like malloc and
-   realloc except that they generate a fatal error if there is no
-   available memory. */
-
-/* #define nounderscore 1 /* define this is names don't start with _ */
-
-#include <stdio.h>
-#include <ctype.h>
-
-#ifdef USG
-#include <memory.h>
-#include <string.h>
-#else
-#include <strings.h>
-#define memcpy(s1, s2, n) bcopy ((s2), (s1), (n))
-#define memcmp(s1, s2, n) bcmp ((s2), (s1), (n))
-#define strchr index
-#define strrchr rindex
-#endif
-
-#ifndef __STDC__
-#define const
-#endif
-
-#ifdef __STDC__
-extern char *cplus_demangle (const char *type);
-#else
-extern char *cplus_demangle ();
-#endif
-
-#ifdef __STDC__
-extern char *xmalloc (int);
-extern char *xrealloc (char *, int);
-#else
-extern char *xmalloc ();
-extern char *xrealloc ();
-#endif
-
-static char **typevec = 0;
-static int ntypes = 0;
-static int typevec_size = 0;
-
-static struct {
-  const char *in;
-  const char *out;
-} optable[] = {
-  "new", " new",
-  "delete", " delete",
-  "ne", "!=",
-  "eq", "==",
-  "ge", ">=",
-  "gt", ">",
-  "le", "<=",
-  "lt", "<",
-  "plus", "+",
-  "minus", "-",
-  "mult", "*",
-  "convert", "+",	/* unary + */
-  "negate", "-",	/* unary - */
-  "trunc_mod", "%",
-  "trunc_div", "/",
-  "truth_andif", "&&",
-  "truth_orif", "||",
-  "truth_not", "!",
-  "postincrement", "++",
-  "postdecrement", "--",
-  "bit_ior", "|",
-  "bit_xor", "^",
-  "bit_and", "&",
-  "bit_not", "~",
-  "call", "()",
-  "cond", "?:",
-  "alshift", "<<",
-  "arshift", ">>",
-  "component", "->",
-  "indirect", "*",
-  "method_call", "->()",
-  "addr", "&",		/* unary & */
-  "array", "[]",
-  "nop", "",			/* for operator= */
-};
-
-/* Beware: these aren't '\0' terminated. */
-
-typedef struct {
-  char *b;			/* pointer to start of string */
-  char *p;			/* pointer after last character */
-  char *e;			/* pointer after end of allocated space */
-} string;
-
-#ifdef __STDC__
-static void string_need (string *s, int n);
-static void string_delete (string *s);
-static void string_init (string *s);
-static void string_clear (string *s);
-static int string_empty (string *s);
-static void string_append (string *p, const char *s);
-static void string_appends (string *p, string *s);
-static void string_appendn (string *p, const char *s, int n);
-static void string_prepend (string *p, const char *s);
-#if 0
-static void string_prepends (string *p, string *s);
-#endif
-static void string_prependn (string *p, const char *s, int n);
-static int get_count (const char **type, int *count);
-static int do_args (const char **type, string *decl);
-static int do_type (const char **type, string *result);
-static int do_arg (const char **type, string *result);
-static int do_args (const char **type, string *decl);
-static void munge_function_name (string *name);
-static void remember_type (const char *type, int len);
-#else
-static void string_need ();
-static void string_delete ();
-static void string_init ();
-static void string_clear ();
-static int string_empty ();
-static void string_append ();
-static void string_appends ();
-static void string_appendn ();
-static void string_prepend ();
-static void string_prepends ();
-static void string_prependn ();
-static int get_count ();
-static int do_args ();
-static int do_type ();
-static int do_arg ();
-static int do_args ();
-static void munge_function_name ();
-static void remember_type ();
-#endif
-
-char *
-cplus_demangle (type)
-     const char *type;
-{
-  string decl;
-  int n;
-  int success = 0;
-  int constructor = 0;
-  int const_flag = 0;
-  int i;
-  const char *p;
-#ifndef LONGERNAMES
-  const char *premangle;
-#endif
-
-  if (type == NULL || *type == '\0')
-    return NULL;
-#ifndef nounderscore
-  if (*type++ != '_')
-    return NULL;
-#endif
-  p = type;
-  while (*p != '\0' && !(*p == '_' && p[1] == '_'))
-    p++;
-  if (*p == '\0')
-    {
-      /* destructor */
-      if (type[0] == '_' && type[1] == '$' && type[2] == '_')
-	{
-	  int n = (strlen (type) - 3)*2 + 3 + 2 + 1;
-	  char *tem = (char *) xmalloc (n);
-	  strcpy (tem, type + 3);
-	  strcat (tem, "::~");
-	  strcat (tem, type + 3);
-	  strcat (tem, "()");
-	  return tem;
-	}
-      /* static data member */
-      if (*type != '_' && (p = strchr (type, '$')) != NULL)
-	{
-	  int n = strlen (type) + 2;
-	  char *tem = (char *) xmalloc (n);
-	  memcpy (tem, type, p - type);
-	  strcpy (tem + (p - type), "::");
-	  strcpy (tem + (p - type) + 2, p + 1);
-	  return tem;
-	}
-      /* virtual table */
-      if (type[0] == '_' && type[1] == 'v' && type[2] == 't' && type[3] == '$')
-	{
-	  int n = strlen (type + 4) + 14 + 1;
-	  char *tem = (char *) xmalloc (n);
-	  strcpy (tem, type + 4);
-	  strcat (tem, " virtual table");
-	  return tem;
-	}
-      return NULL;
-    }
-
-  string_init (&decl);
-
-  if (p == type)
-    {
-      if (!isdigit (p[2]))
-	{
-	  string_delete (&decl);
-	  return NULL;
-	}
-      constructor = 1;
-    }
-  else
-    {
-      string_appendn (&decl, type, p - type);
-      munge_function_name (&decl);
-    }
-  p += 2;
-
-#ifndef LONGERNAMES
-  premangle = p;
-#endif
-  switch (*p)
-    {
-    case 'C':
-      /* a const member function */
-      if (!isdigit (p[1]))
-	{
-	  string_delete (&decl);
-	  return NULL;
-	}
-      p += 1;
-      const_flag = 1;
-      /* fall through */
-    case '0':
-    case '1':
-    case '2':
-    case '3':
-    case '4':
-    case '5':
-    case '6':
-    case '7':
-    case '8':
-    case '9':
-      n = 0;
-      do
-	{
-	  n *= 10;
-	  n += *p - '0';
-	  p += 1;
-	}
-      while (isdigit (*p));
-      if (strlen (p) < n)
-	{
-	  string_delete (&decl);
-	  return NULL;
-	}
-      if (constructor)
-	{
-	  string_appendn (&decl, p, n);
-	  string_append (&decl, "::");
-	  string_appendn (&decl, p, n);
-	}
-      else
-	{
-	  string_prepend (&decl, "::");
-	  string_prependn (&decl, p, n);
-	}
-      p += n;
-#ifndef LONGERNAMES
-      remember_type (premangle, p - premangle);
-#endif
-      success = do_args (&p, &decl);
-      if (const_flag)
-	string_append (&decl, " const");
-      break;
-    case 'F':
-      p += 1;
-      success = do_args (&p, &decl);
-      break;
-    }
-
-  for (i = 0; i < ntypes; i++)
-    if (typevec[i] != NULL)
-      free (typevec[i]);
-  ntypes = 0;
-  if (typevec != NULL)
-    {
-      free ((char *)typevec);
-      typevec = NULL;
-      typevec_size = 0;
-    }
-
-  if (success)
-    {
-      string_appendn (&decl, "", 1);
-      return decl.b;
-    }
-  else
-    {
-      string_delete (&decl);
-      return NULL;
-    }
-}
-
-static int
-get_count (type, count)
-     const char **type;
-     int *count;
-{
-  if (!isdigit (**type))
-    return 0;
-  *count = **type - '0';
-  *type += 1;
-  /* see flush_repeats in cplus-method.c */
-  if (isdigit (**type))
-    {
-      const char *p = *type;
-      int n = *count;
-      do
-	{
-	  n *= 10;
-	  n += *p - '0';
-	  p += 1;
-	}
-      while (isdigit (*p));
-      if (*p == '_')
-	{
-	  *type = p + 1;
-	  *count = n;
-	}
-    }
-  return 1;
-}
-
-/* result will be initialised here; it will be freed on failure */
-
-static int
-do_type (type, result)
-     const char **type;
-     string *result;
-{
-  int n;
-  int done;
-  int non_empty = 0;
-  int success;
-  string decl;
-  const char *remembered_type;
-
-  string_init (&decl);
-  string_init (result);
-
-  done = 0;
-  success = 1;
-  while (success && !done)
-    {
-      int member;
-      switch (**type)
-	{
-	case 'P':
-	  *type += 1;
-	  string_prepend (&decl, "*");
-	  break;
-
-	case 'R':
-	  *type += 1;
-	  string_prepend (&decl, "&");
-	  break;
-
-	case 'T':
-	  *type += 1;
-	  if (!get_count (type, &n) || n >= ntypes)
-	    success = 0;
-	  else
-	    {
-	      remembered_type = typevec[n];
-	      type = &remembered_type;
-	    }
-	  break;
-
-	case 'F':
-	  *type += 1;
-	  if (!string_empty (&decl) && decl.b[0] == '*')
-	    {
-	      string_prepend (&decl, "(");
-	      string_append (&decl, ")");
-	    }
-	  if (!do_args (type, &decl) || **type != '_')
-	    success = 0;
-	  else
-	    *type += 1;
-	  break;
-
-	case 'M':
-	case 'O':
-	  {
-	    int constp = 0;
-	    int volatilep = 0;
-
-	    member = **type == 'M';
-	    *type += 1;
-	    if (!isdigit (**type))
-	      {
-		success = 0;
-		break;
-	      }
-	    n = 0;
-	    do
-	      {
-		n *= 10;
-		n += **type - '0';
-		*type += 1;
-	      }
-	    while (isdigit (**type));
-	    if (strlen (*type) < n)
-	      {
-		success = 0;
-		break;
-	      }
-	    string_append (&decl, ")");
-	    string_prepend (&decl, "::");
-	    string_prependn (&decl, *type, n);
-	    string_prepend (&decl, "(");
-	    *type += n;
-	    if (member)
-	      {
-		if (**type == 'C')
-		  {
-		    *type += 1;
-		    constp = 1;
-		  }
-		if (**type == 'V')
-		  {
-		    *type += 1;
-		    volatilep = 1;
-		  }
-		if (*(*type)++ != 'F')
-		  {
-		    success = 0;
-		    break;
-		  }
-	      }
-	    if ((member && !do_args (type, &decl)) || **type != '_')
-	      {
-		success = 0;
-		break;
-	      }
-	    *type += 1;
-	    if (constp)
-	      {
-		if (non_empty)
-		  string_append (&decl, " ");
-		else
-		  non_empty = 1;
-		string_append (&decl, "const");
-	      }
-	    if (volatilep)
-	      {
-		if (non_empty)
-		  string_append (&decl, " ");
-		else
-		  non_empty = 1;
-		string_append (&decl, "volatilep");
-	      }
-	    break;
-	  }
-
-	case 'C':
-	  if ((*type)[1] == 'P')
-	    {
-	      *type += 1;
-	      if (!string_empty (&decl))
-		string_prepend (&decl, " ");
-	      string_prepend (&decl, "const");
-	      break;
-	    }
-
-	  /* fall through */
-	default:
-	  done = 1;
-	  break;
-	}
-    }
-
-  done = 0;
-  non_empty = 0;
-  while (success && !done)
-    {
-      switch (**type)
-	{
-	case 'C':
-	  *type += 1;
-	  if (non_empty)
-	    string_append (result, " ");
-	  else
-	    non_empty = 1;
-	  string_append (result, "const");
-	  break;
-	case 'U':
-	  *type += 1;
-	  if (non_empty)
-	    string_append (result, " ");
-	  else
-	    non_empty = 1;
-	  string_append (result, "unsigned");
-	  break;
-	case 'V':
-	  *type += 1;
-	  if (non_empty)
-	    string_append (result, " ");
-	  else
-	    non_empty = 1;
-	  string_append (result, "volatile");
-	  break;
-	default:
-	  done = 1;
-	  break;
-	}
-    }
-
-  if (success)
-    switch (**type)
-      {
-      case '\0':
-      case '_':
-	break;
-      case 'v':
-	*type += 1;
-	if (non_empty)
-	  string_append (result, " ");
-	string_append (result, "void");
-	break;
-      case 'x':
-	*type += 1;
-	if (non_empty)
-	  string_append (result, " ");
-	string_append (result, "long long");
-	break;
-      case 'l':
-	*type += 1;
-	if (non_empty)
-	  string_append (result, " ");
-	string_append (result, "long");
-	break;
-      case 'i':
-	*type += 1;
-	if (non_empty)
-	  string_append (result, " ");
-	string_append (result, "int");
-	break;
-      case 's':
-	*type += 1;
-	if (non_empty)
-	  string_append (result, " ");
-	string_append (result, "short");
-	break;
-      case 'c':
-	*type += 1;
-	if (non_empty)
-	  string_append (result, " ");
-	string_append (result, "char");
-	break;
-      case 'r':
-	*type += 1;
-	if (non_empty)
-	  string_append (result, " ");
-	string_append (result, "long double");
-	break;
-      case 'd':
-	*type += 1;
-	if (non_empty)
-	  string_append (result, " ");
-	string_append (result, "double");
-	break;
-      case 'f':
-	*type += 1;
-	if (non_empty)
-	  string_append (result, " ");
-	string_append (result, "float");
-	break;
-      case 'G':
-	*type += 1;
-	if (!isdigit (**type))
-	  {
-	    success = 0;
-	    break;
-	  }
-	/* fall through */
-      case '0':
-      case '1':
-      case '2':
-      case '3':
-      case '4':
-      case '5':
-      case '6':
-      case '7':
-      case '8':
-      case '9':
-	n = 0;
-	do
-	  {
-	    n *= 10;
-	    n += **type - '0';
-	    *type += 1;
-	  }
-	while (isdigit (**type));
-	if (strlen (*type) < n)
-	  {
-	    success = 0;
-	    break;
-	  }
-	if (non_empty)
-	  string_append (result, " ");
-	string_appendn (result, *type, n);
-	*type += n;
-	break;
-      default:
-	success = 0;
-	break;
-      }
-
-  if (success)
-    {
-      if (!string_empty (&decl))
-	{
-	  string_append (result, " ");
-	  string_appends (result, &decl);
-	}
-      string_delete (&decl);
-      return 1;
-    }
-  else
-    {
-      string_delete (&decl);
-      string_delete (result);
-      return 0;
-    }
-}
-
-/* `result' will be initialised in do_type; it will be freed on failure */
-
-static int
-do_arg (type, result)
-     const char **type;
-     string *result;
-{
-  const char *start = *type;
-
-  if (!do_type (type, result))
-    return 0;
-  remember_type (start, *type - start);
-  return 1;
-}
-
-static void
-remember_type (start, len)
-     const char *start;
-     int len;
-{
-  char *tem;
-
-  if (ntypes >= typevec_size)
-    {
-      if (typevec_size == 0)
-	{
-	  typevec_size = 3;
-	  typevec = (char **) xmalloc (sizeof (char*)*typevec_size);
-	}
-      else
-	{
-	  typevec_size *= 2;
-	  typevec = (char **) xrealloc ((char *)typevec, sizeof (char*)*typevec_size);
-	}
-    }
-  tem = (char *) xmalloc (len + 1);
-  memcpy (tem, start, len);
-  tem[len] = '\0';
-  typevec[ntypes++] = tem;
-}
-
-/* `decl' must be already initialised, usually non-empty;
-   it won't be freed on failure */
-
-static int
-do_args (type, decl)
-     const char **type;
-     string *decl;
-{
-  string arg;
-  int need_comma = 0;
-
-  string_append (decl, "(");
-
-  while (**type != '_' && **type != '\0' && **type != 'e' && **type != 'v')
-    {
-      if (**type == 'N')
-	{
-	  int r;
-	  int t;
-	  *type += 1;
-	  if (!get_count (type, &r) || !get_count (type, &t) || t >= ntypes)
-	    return 0;
-	  while (--r >= 0)
-	    {
-	      const char *tem = typevec[t];
-	      if (need_comma)
-		string_append (decl, ", ");
-	      if (!do_arg (&tem, &arg))
-		return 0;
-	      string_appends (decl, &arg);
-	      string_delete (&arg);
-	      need_comma = 1;
-	    }
-	}
-      else
-	{
-	  if (need_comma)
-	    string_append (decl, ", ");
-	  if (!do_arg (type, &arg))
-	    return 0;
-	  string_appends (decl, &arg);
-	  string_delete (&arg);
-	  need_comma = 1;
-	}
-    }
-
-  if (**type == 'v')
-    *type += 1;
-  else if (**type == 'e')
-    {
-      *type += 1;
-      if (need_comma)
-	string_append (decl, ",");
-      string_append (decl, "...");
-    }
-
-  string_append (decl, ")");
-  return 1;
-}
-
-static void
-munge_function_name (name)
-     string *name;
-{
-  if (!string_empty (name) && name->p - name->b >= 3
-      && name->b[0] == 'o' && name->b[1] == 'p' && name->b[2] == '$')
-    {
-      int i;
-      /* see if it's an assignment expression */
-      if (name->p - name->b >= 10 /* op$assign_ */
-	  && memcmp (name->b + 3, "assign_", 7) == 0)
-	{
-	  for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++)
-	    {
-	      int len = name->p - name->b - 10;
-	      if (strlen (optable[i].in) == len
-		  && memcmp (optable[i].in, name->b + 10, len) == 0)
-		{
-		  string_clear (name);
-		  string_append (name, "operator");
-		  string_append (name, optable[i].out);
-		  string_append (name, "=");
-		  return;
-		}
-	    }
-	}
-      else
-	{
-	  for (i = 0; i < sizeof (optable)/sizeof (optable[0]); i++)
-	    {
-	      int len = name->p - name->b - 3;
-	      if (strlen (optable[i].in) == len
-		  && memcmp (optable[i].in, name->b + 3, len) == 0)
-		{
-		  string_clear (name);
-		  string_append (name, "operator");
-		  string_append (name, optable[i].out);
-		  return;
-		}
-	    }
-	}
-      return;
-    }
-  else if (!string_empty (name) && name->p - name->b >= 5
-	   && memcmp (name->b, "type$", 5) == 0)
-    {
-      /* type conversion operator */
-      string type;
-      const char *tem = name->b + 5;
-      if (do_type (&tem, &type))
-	{
-	  string_clear (name);
-	  string_append (name, "operator ");
-	  string_appends (name, &type);
-	  string_delete (&type);
-	  return;
-	}
-    }
-}
-
-/* a mini string-handling package */
-
-static void
-string_need (s, n)
-     string *s;
-     int n;
-{
-  if (s->b == NULL)
-    {
-      if (n < 32)
-	n = 32;
-      s->p = s->b = (char *) xmalloc (n);
-      s->e = s->b + n;
-    }
-  else if (s->e - s->p < n)
-    {
-      int tem = s->p - s->b;
-      n += tem;
-      n *= 2;
-      s->b = (char *) xrealloc (s->b, n);
-      s->p = s->b + tem;
-      s->e = s->b + n;
-    }
-}
-
-static void
-string_delete (s)
-     string *s;
-{
-  if (s->b != NULL)
-    {
-      free (s->b);
-      s->b = s->e = s->p = NULL;
-    }
-}
-
-static void
-string_init (s)
-     string *s;
-{
-  s->b = s->p = s->e = NULL;
-}
-
-static void
-string_clear (s)
-     string *s;
-{
-  s->p = s->b;
-}
-
-static int
-string_empty (s)
-     string *s;
-{
-  return s->b == s->p;
-}
-
-static void
-string_append (p, s)
-     string *p;
-     const char *s;
-{
-  int n;
-  if (s == NULL || *s == '\0')
-    return;
-  n = strlen (s);
-  string_need (p, n);
-  memcpy (p->p, s, n);
-  p->p += n;
-}
-
-static void
-string_appends (p, s)
-     string *p, *s;
-{
-  int n;
-  if (s->b == s->p)
-    return;
-  n = s->p - s->b;
-  string_need (p, n);
-  memcpy (p->p, s->b, n);
-  p->p += n;
-}
-
-static void
-string_appendn (p, s, n)
-     string *p;
-     const char *s;
-     int n;
-{
-  if (n == 0)
-    return;
-  string_need (p, n);
-  memcpy (p->p, s, n);
-  p->p += n;
-}
-
-static void
-string_prepend (p, s)
-     string *p;
-     const char *s;
-{
-  if (s == NULL || *s == '\0')
-    return;
-  string_prependn (p, s, strlen (s));
-}
-
-#if 0
-static void
-string_prepends (p, s)
-     string *p, *s;
-{
-  if (s->b == s->p)
-    return;
-  string_prependn (p, s->b, s->p - s->b);
-}
-#endif
-
-static void
-string_prependn (p, s, n)
-     string *p;
-     const char *s;
-     int n;
-{
-  char *q;
-
-  if (n == 0)
-    return;
-  string_need (p, n);
-  for (q = p->p - 1; q >= p->b; q--)
-    q[n] = q[0];
-  memcpy (p->b, s, n);
-  p->p += n;
-}