* support/cpp/output.h, support/cpp/opts-common.c,

  support/cpp/c-ppoutput.c, support/cpp/cppdefault.c,
  support/cpp/system.h, support/cpp/cppdefault.h,
  support/cpp/prefix.c, support/cpp/except.h, support/cpp/hwint.h,
  support/cpp/prefix.h, support/cpp/libiberty/safe-ctype.h,
  support/cpp/libiberty/filenames.h, support/cpp/libiberty/xstrdup.c,
  support/cpp/libiberty/md5.c, support/cpp/libiberty/obstack.h,
  support/cpp/sdcpp.c, support/cpp/intl.h, support/cpp/sdcpp.h
  support/cpp/libcpp/symtab.c, support/cpp/libcpp/directives.c,
  support/cpp/libcpp/macro.c, support/cpp/libcpp/include/cpplib.h,
  support/cpp/libcpp/include/symtab.h,
  support/cpp/libcpp/include/line-map.h,
  support/cpp/libcpp/include/cpp-id-data.h,
  support/cpp/libcpp/include/mkdeps.h, support/cpp/libcpp/files.c,
  support/cpp/libcpp/line-map.c, support/cpp/libcpp/init.c,
  support/cpp/libcpp/identifiers.c, support/cpp/libcpp/ucnid.h,
  support/cpp/libcpp/traditional.c, support/cpp/libcpp/errors.c,
  support/cpp/libcpp/expr.c, support/cpp/libcpp/internal.h,
  support/cpp/libcpp/mkdeps.c, support/cpp/libcpp/lex.c,
  support/cpp/libcpp/system.h, support/cpp/libcpp/charset.c,
  support/cpp/opts.h, support/cpp/sdcpp-opts.c:
  SDCPP synchronized with GCC CPP release version 4.4.0

git-svn-id: https://svn.code.sourceforge.net/p/sdcc/code/trunk/sdcc@5444 4a8a32a2-be11-0410-ad9d-d568d2c75423

1 files changed, 25 insertions, 21 deletions

diff --git a/support/cpp/libcpp/files.c b/support/cpp/libcpp/files.c
index 469a73af0..615b6ab29 100644
--- a/support/cpp/libcpp/files.c
+++ b/support/cpp/libcpp/files.c
@@ -1,6 +1,6 @@
 /* Part of CPP library.  File handling.
    Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
    Free Software Foundation, Inc.
    Written by Per Bothner, 1994.
    Based on CCCP program by Paul Rubin, June 1986
@@ -10,7 +10,7 @@
 
 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 2, or (at your option) any
+Free Software Foundation; either version 3, or (at your option) any
 later version.
 
 This program is distributed in the hope that it will be useful,
@@ -19,8 +19,8 @@ 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+along with this program; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
 #include "system.h"
@@ -74,6 +74,10 @@ struct _cpp_file
   /* The contents of NAME after calling read_file().  */
   const uchar *buffer;
 
+  /* Pointer to the real start of BUFFER.  read_file() might increment
+     BUFFER; when freeing, this this pointer must be used instead.  */
+  const uchar *buffer_start;
+
   /* The macro, if any, preventing re-inclusion.  */
   const cpp_hashnode *cmacro;
 
@@ -106,9 +110,6 @@ struct _cpp_file
 
   /* If BUFFER above contains the true contents of the file.  */
   bool buffer_valid;
-
-  /* File is a PCH (on return from find_include_file).  */
-  bool pch;
 };
 
 /* A singly-linked list for all searches for a given file name, with
@@ -322,9 +323,7 @@ pch_open_file (cpp_reader *pfile, _cpp_file *file, bool *invalid_pch)
             }
           closedir (pchdir);
         }
-      if (valid)
-        file->pch = true;
-      else
+      if (!valid)
         *invalid_pch = true;
     }
 
@@ -602,7 +601,7 @@ read_file_guts (cpp_reader *pfile, _cpp_file *file)
          type.  Use INTTYPE_MAXIMUM unconditionally to ensure this
          does not bite us.  */
 #ifndef __BORLANDC__
-         if (file->st.st_size > INTTYPE_MAXIMUM (ssize_t))
+      if (file->st.st_size > INTTYPE_MAXIMUM (ssize_t))
         {
           cpp_error (pfile, CPP_DL_ERROR, "%s is too large", file->path);
           return false;
@@ -651,8 +650,11 @@ read_file_guts (cpp_reader *pfile, _cpp_file *file)
                "%s is shorter than expected", file->path);
 #endif
 
-  file->buffer = _cpp_convert_input (pfile, CPP_OPTION (pfile, input_charset),
-                                     buf, size, total, &file->st.st_size);
+  file->buffer = _cpp_convert_input (pfile,
+                                     CPP_OPTION (pfile, input_charset),
+                                     buf, size, total,
+                                     &file->buffer_start,
+                                     &file->st.st_size);
   file->buffer_valid = true;
 
   return true;
@@ -714,11 +716,12 @@ should_stack_file (cpp_reader *pfile, _cpp_file *file, bool import)
     return false;
 
   /* Handle PCH files immediately; don't stack them.  */
-  if (file->pch)
+  if (file->pchname)
     {
       pfile->cb.read_pch (pfile, file->pchname, file->fd, file->path);
-      close (file->fd);
       file->fd = -1;
+      free ((void *) file->pchname);
+      file->pchname = NULL;
       return false;
     }
 
@@ -927,10 +930,10 @@ _cpp_stack_include (cpp_reader *pfile, const char *fname, int angle_brackets,
      complicates LAST_SOURCE_LINE_LOCATION.  This does not apply if we
      found a PCH file (in which case linemap_add is not called) or we
      were included from the command-line.  */
-  if (! file->pch && file->err_no == 0 && type != IT_CMDLINE)
+  if (file->pchname == NULL && file->err_no == 0 && type != IT_CMDLINE)
     pfile->line_table->highest_location--;
 
-  return _cpp_stack_file (pfile, file, type == IT_IMPORT);
+  return _cpp_stack_file (pfile, file, (bool)(type == IT_IMPORT));
 }
 
 /* Could not open FILE.  The complication is dependency output.  */
@@ -984,8 +987,8 @@ make_cpp_file (cpp_reader *pfile, cpp_dir *dir, const char *fname)
 static void
 destroy_cpp_file (_cpp_file *file)
 {
-  if (file->buffer)
-    free ((void *) file->buffer);
+  if (file->buffer_start)
+    free ((void *) file->buffer_start);
   free ((void *) file->name);
   free (file);
 }
@@ -1350,9 +1353,10 @@ _cpp_pop_file_buffer (cpp_reader *pfile, _cpp_file *file)
   /* Invalidate control macros in the #including file.  */
   pfile->mi_valid = false;
 
-  if (file->buffer)
+  if (file->buffer_start)
     {
-      free ((void *) file->buffer);
+      free ((void *) file->buffer_start);
+      file->buffer_start = NULL;
       file->buffer = NULL;
       file->buffer_valid = false;
     }