X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=libmudflap%2Fmf-heuristics.c;h=020a7c29d527aae026147bda403bd0b675f54918;hb=79135b3081f4aa0410dd4016a17895f679710e62;hp=df2a0391eaf0d9ad9cb30a05e64c2c947aada31f;hpb=1c865459b455969e4390eaed4d78a5a6f7f7d2b3;p=pf3gnuchains%2Fgcc-fork.git

diff --git a/libmudflap/mf-heuristics.c b/libmudflap/mf-heuristics.c
index df2a0391eaf..020a7c29d52 100644
--- a/libmudflap/mf-heuristics.c
+++ b/libmudflap/mf-heuristics.c
@@ -1,5 +1,5 @@
 /* Mudflap: narrow-pointer bounds-checking by tree rewriting.
-   Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2009 Free Software Foundation, Inc.
    Contributed by Frank Ch. Eigler <fche@redhat.com>
    and Graydon Hoare <graydon@redhat.com>
 
@@ -7,28 +7,22 @@ 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.
 
-In addition to the permissions in the GNU General Public License, the
-Free Software Foundation gives you unlimited permission to link the
-compiled version of this file into combinations with other programs,
-and to distribute those combinations without any restriction coming
-from the use of this file.  (The General Public License restrictions
-do apply in other respects; for example, they cover modification of
-the file, and distribution when not linked into a combine
-executable.)
-
 GCC 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 GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
 
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
 
 #include "config.h"
 
@@ -42,8 +36,8 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #endif
 
 
-extern char _end;
-extern char _start;
+extern char _end[];
+extern char ENTRY_POINT[];
 
 
 /* Run some quick validation of the given region.
@@ -164,10 +158,11 @@ __mf_heuristic_check (uintptr_t ptr, uintptr_t ptr_high)
     }
 
 
-  /* The third heuristic is to approve all accesses between _start and _end,
-     which should include all text and initialized data.  */
+  /* The third heuristic is to approve all accesses between _start (or its
+     equivalent for the given target) and _end, which should include all
+     text and initialized data.  */
   if (__mf_opts.heur_start_end)
-    if (ptr >= (uintptr_t) & _start && ptr_high <= (uintptr_t) & _end)
+    if (ptr >= (uintptr_t) & ENTRY_POINT && ptr_high <= (uintptr_t) & _end)
       return 1; /* uncacheable */
 
   return 0; /* unknown */