Fix PR43354: Correctly handle default definitions.

[pf3gnuchains/gcc-fork.git] / gcc / tlink.c

diff --git a/gcc/tlink.c b/gcc/tlink.c
index 8e10eeb..7b58983 100644 (file)
--- a/gcc/tlink.c
+++ b/gcc/tlink.c
@@ -1,7 +1,7 @@
 /* Scan linker error messages for missing template instantiations and provide
    them.
 
-   Copyright (C) 1995, 1998, 1999, 2000, 2001, 2003, 2004, 2005
+   Copyright (C) 1995, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2007, 2008
    Free Software Foundation, Inc.
    Contributed by Jason Merrill (jason@cygnus.com).
 
@@ -9,7 +9,7 @@ This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
@@ -18,9 +18,8 @@ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
 #include "system.h"
@@ -31,6 +30,11 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
 #include "hashtab.h"
 #include "demangle.h"
 #include "collect2.h"
+#include "libiberty.h"
+
+/* TARGET_64BIT may be defined to use driver specific functionality. */
+#undef TARGET_64BIT
+#define TARGET_64BIT TARGET_64BIT_DEFAULT
 
 #define MAX_ITERATIONS 17
 
@@ -39,7 +43,7 @@ extern int prepends_underscore;
 
 static int tlink_verbose;
 
-static char initial_cwd[MAXPATHLEN + 1];
+static char *initial_cwd;
 \f
 /* Hash table boilerplate for working with htab_t.  We have hash tables
    for symbol names, file names, and demangled symbols.  */
@@ -128,7 +132,7 @@ symbol_hash_lookup (const char *string, int create)
       *e = v = XCNEW (struct symbol_hash_entry);
       v->key = xstrdup (string);
     }
-  return *e;
+  return (struct symbol_hash_entry *) *e;
 }
 
 static htab_t file_table;
@@ -148,7 +152,7 @@ file_hash_lookup (const char *string)
       *e = v = XCNEW (struct file_hash_entry);
       v->key = xstrdup (string);
     }
-  return *e;
+  return (struct file_hash_entry *) *e;
 }
 
 static htab_t demangled_table;
@@ -170,7 +174,7 @@ demangled_hash_lookup (const char *string, int create)
       *e = v = XCNEW (struct demangled_hash_entry);
       v->key = xstrdup (string);
     }
-  return *e;
+  return (struct demangled_hash_entry *) *e;
 }
 \f
 /* Stack code.  */
@@ -194,8 +198,8 @@ struct file_stack_entry *file_stack;
 static void
 symbol_push (symbol *p)
 {
-  struct symbol_stack_entry *ep = obstack_alloc
-    (&symbol_stack_obstack, sizeof (struct symbol_stack_entry));
+  struct symbol_stack_entry *ep
+    = XOBNEW (&symbol_stack_obstack, struct symbol_stack_entry);
   ep->value = p;
   ep->next = symbol_stack;
   symbol_stack = ep;
@@ -222,8 +226,7 @@ file_push (file *p)
   if (p->tweaking)
     return;
 
-  ep = obstack_alloc
-    (&file_stack_obstack, sizeof (struct file_stack_entry));
+  ep = XOBNEW (&file_stack_obstack, struct file_stack_entry);
   ep->value = p;
   ep->next = file_stack;
   file_stack = ep;
@@ -275,7 +278,7 @@ tlink_init (void)
        tlink_verbose = 3;
     }
 
-  getcwd (initial_cwd, sizeof (initial_cwd));
+  initial_cwd = getpwd ();
 }
 
 static int
@@ -284,7 +287,7 @@ tlink_execute (const char *prog, char **argv, const char *outname,
 {
   struct pex_obj *pex;
 
-  pex = collect_execute (prog, argv, outname, errname);
+  pex = collect_execute (prog, argv, outname, errname, PEX_LAST | PEX_SEARCH);
   return collect_wait (prog, pex);
 }
 
@@ -299,7 +302,7 @@ frob_extension (const char *s, const char *ext)
     p = s + strlen (s);
 
   obstack_grow (&temporary_obstack, s, p - s);
-  return obstack_copy0 (&temporary_obstack, ext, strlen (ext));
+  return (char *) obstack_copy0 (&temporary_obstack, ext, strlen (ext));
 }
 
 static char *
@@ -607,7 +610,7 @@ scan_linker_output (const char *fname)
 {
   FILE *stream = fopen (fname, "r");
   char *line;
-  int skip_next_line = 0;
+  int skip_next_in_line = 0;
 
   while ((line = tfgets (stream)) != NULL)
     {
@@ -616,8 +619,11 @@ scan_linker_output (const char *fname)
       int end;
       int ok = 0;
 
-      if (skip_next_line)
-       continue;
+      /* On darwin9, we might have to skip " in " lines as well.  */
+      if (skip_next_in_line
+         && strstr (p, " in "))
+         continue;
+      skip_next_in_line = 0;
 
       while (*p && ISSPACE ((unsigned char) *p))
        ++p;
@@ -655,21 +661,23 @@ scan_linker_output (const char *fname)
       if (! sym && ! end)
        /* Try a mangled name in quotes.  */
        {
-         const char *oldq = q + 1;
+         char *oldq = q + 1;
          demangled *dem = 0;
          q = 0;
 
-         /* On darwin9, we look for "foo" referenced from:\n.*\n  */
+         /* On darwin9, we look for "foo" referenced from:\n\(.* in .*\n\)*  */
          if (strcmp (oldq, "referenced from:") == 0)
            {
              /* We have to remember that we found a symbol to tweak.  */
              ok = 1;
 
-             /* We actually want to start from the first word on the line.  */
+             /* We actually want to start from the first word on the
+                line.  */
              oldq = p;
 
-             /* Since the format is multiline, we have to skip the next line.  */
-             skip_next_line = 1;
+             /* Since the format is multiline, we have to skip
+                following lines with " in ".  */
+             skip_next_in_line = 1;
            }
 
          /* First try `GNU style'.  */
@@ -679,6 +687,9 @@ scan_linker_output (const char *fname)
          /* Then try "double quotes".  */
          else if (p = strchr (oldq, '"'), p)
            p++, q = strchr (p, '"');
+         /* Then try 'single quotes'.  */
+         else if (p = strchr (oldq, '\''), p)
+           p++, q = strchr (p, '\'');
          else {
            /* Then try entire line.  */
            q = strchr (oldq, 0);
@@ -722,7 +733,7 @@ scan_linker_output (const char *fname)
       if (sym && sym->tweaked)
        {
          error ("'%s' was assigned to '%s', but was not defined "
-                "during recompilation, or vice versa", 
+                "during recompilation, or vice versa",
                 sym->key, sym->file->key);
          fclose (stream);
          return 0;