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[deliverable/binutils-gdb.git] / bfd / libbfd.c

diff --git a/bfd/libbfd.c b/bfd/libbfd.c
index c66a570e2fc5eb7333de34041f5f3fc266329bca..33d9c017ab63f336f3eeb673d7caa28555763a5f 100644 (file)
--- a/bfd/libbfd.c
+++ b/bfd/libbfd.c
@@ -1,6 +1,6 @@
 /* Assorted BFD support routines, only used internally.
    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2004, 2005
+   2000, 2001, 2002, 2003, 2004, 2005, 2007
    Free Software Foundation, Inc.
    Written by Cygnus Support.
 
@@ -8,7 +8,7 @@
 
    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 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -18,10 +18,11 @@
 
    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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
 
-#include "bfd.h"
 #include "sysdep.h"
+#include "bfd.h"
 #include "libbfd.h"
 
 #ifndef HAVE_GETPAGESIZE
@@ -30,6 +31,9 @@
 
 /*
 SECTION
+       Implementation details
+
+SUBSECTION
        Internal functions
 
 DESCRIPTION
@@ -100,6 +104,23 @@ bfd_void (bfd *ignore ATTRIBUTE_UNUSED)
 {
 }
 
+long
+_bfd_norelocs_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
+                                    asection *sec ATTRIBUTE_UNUSED)
+{
+  return sizeof (arelent *);
+}
+
+long
+_bfd_norelocs_canonicalize_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+                                 asection *sec ATTRIBUTE_UNUSED,
+                                 arelent **relptr,
+                                 asymbol **symbols ATTRIBUTE_UNUSED)
+{
+  *relptr = NULL;
+  return 0;
+}
+
 bfd_boolean
 _bfd_nocore_core_file_matches_executable_p
   (bfd *ignore_core_bfd ATTRIBUTE_UNUSED,
@@ -156,6 +177,36 @@ bfd_malloc (bfd_size_type size)
   return ptr;
 }
 
+/* Allocate memory using malloc, nmemb * size with overflow checking.  */
+
+void *
+bfd_malloc2 (bfd_size_type nmemb, bfd_size_type size)
+{
+  void *ptr;
+
+  if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
+      && size != 0
+      && nmemb > ~(bfd_size_type) 0 / size)
+    {
+      bfd_set_error (bfd_error_no_memory);
+      return NULL;
+    }
+
+  size *= nmemb;
+
+  if (size != (size_t) size)
+    {
+      bfd_set_error (bfd_error_no_memory);
+      return NULL;
+    }
+
+  ptr = malloc ((size_t) size);
+  if (ptr == NULL && (size_t) size != 0)
+    bfd_set_error (bfd_error_no_memory);
+
+  return ptr;
+}
+
 /* Reallocate memory using realloc.  */
 
 void *
@@ -180,6 +231,40 @@ bfd_realloc (void *ptr, bfd_size_type size)
   return ret;
 }
 
+/* Reallocate memory using realloc, nmemb * size with overflow checking.  */
+
+void *
+bfd_realloc2 (void *ptr, bfd_size_type nmemb, bfd_size_type size)
+{
+  void *ret;
+
+  if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
+      && size != 0
+      && nmemb > ~(bfd_size_type) 0 / size)
+    {
+      bfd_set_error (bfd_error_no_memory);
+      return NULL;
+    }
+
+  size *= nmemb;
+
+  if (size != (size_t) size)
+    {
+      bfd_set_error (bfd_error_no_memory);
+      return NULL;
+    }
+
+  if (ptr == NULL)
+    ret = malloc ((size_t) size);
+  else
+    ret = realloc (ptr, (size_t) size);
+
+  if (ret == NULL && (size_t) size != 0)
+    bfd_set_error (bfd_error_no_memory);
+
+  return ret;
+}
+
 /* Allocate memory using malloc and clear it.  */
 
 void *
@@ -205,6 +290,44 @@ bfd_zmalloc (bfd_size_type size)
 
   return ptr;
 }
+
+/* Allocate memory using malloc (nmemb * size) with overflow checking
+   and clear it.  */
+
+void *
+bfd_zmalloc2 (bfd_size_type nmemb, bfd_size_type size)
+{
+  void *ptr;
+
+  if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
+      && size != 0
+      && nmemb > ~(bfd_size_type) 0 / size)
+    {
+      bfd_set_error (bfd_error_no_memory);
+      return NULL;
+    }
+
+  size *= nmemb;
+
+  if (size != (size_t) size)
+    {
+      bfd_set_error (bfd_error_no_memory);
+      return NULL;
+    }
+
+  ptr = malloc ((size_t) size);
+
+  if ((size_t) size != 0)
+    {
+      if (ptr == NULL)
+       bfd_set_error (bfd_error_no_memory);
+      else
+       memset (ptr, 0, (size_t) size);
+    }
+
+  return ptr;
+}
+
 /*
 INTERNAL_FUNCTION
        bfd_write_bigendian_4byte_int
@@ -918,3 +1041,23 @@ read_signed_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
   *bytes_read_ptr = num_read;
   return result;
 }
+
+bfd_boolean
+_bfd_generic_find_line (bfd *abfd ATTRIBUTE_UNUSED,
+                      asymbol **symbols ATTRIBUTE_UNUSED,
+                      asymbol *symbol ATTRIBUTE_UNUSED,
+                      const char **filename_ptr ATTRIBUTE_UNUSED,
+                      unsigned int *linenumber_ptr ATTRIBUTE_UNUSED)
+{
+  return FALSE;
+}
+
+bfd_boolean
+_bfd_generic_init_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED,
+                                       asection *isec ATTRIBUTE_UNUSED,
+                                       bfd *obfd ATTRIBUTE_UNUSED,
+                                       asection *osec ATTRIBUTE_UNUSED,
+                                       struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
+{
+  return TRUE;
+}