X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Flibbfd.c;h=a225397c3e780fd18b39c940d19f78edd3fad542;hb=6bba1048d63e0476b94b9934527defd81c590a13;hp=b2f83c4503062b17763b54cf320283a3d3cc77e0;hpb=c0c28ab8b2757069a1abf73fcb4714f077e76995;p=deliverable%2Fbinutils-gdb.git

diff --git a/bfd/libbfd.c b/bfd/libbfd.c
index b2f83c4503..a225397c3e 100644
--- 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
+   2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
    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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 +231,68 @@ 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;
+}
+
+/* Reallocate memory using realloc.
+   If this fails the pointer is freed before returning.  */
+
+void *
+bfd_realloc_or_free (void *ptr, bfd_size_type size)
+{
+  size_t amount = (size_t) size;
+  void *ret;
+
+  if (size != amount)
+    ret = NULL;
+  else if (ptr == NULL)
+    ret = malloc (amount);
+  else
+    ret = realloc (ptr, amount);
+
+  if (ret == NULL)
+    {
+      if (amount > 0)
+	bfd_set_error (bfd_error_no_memory);
+
+      if (ptr != NULL)
+	free (ptr);
+    }
+
+  return ret;
+}
+
 /* Allocate memory using malloc and clear it.  */
 
 void *
@@ -205,6 +318,44 @@ 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
@@ -697,7 +848,8 @@ _bfd_generic_get_section_contents (bfd *abfd,
     return TRUE;
 
   sz = section->rawsize ? section->rawsize : section->size;
-  if (offset + count > sz)
+  if (offset + count < count
+      || offset + count > sz)
     {
       bfd_set_error (bfd_error_invalid_operation);
       return FALSE;
@@ -865,12 +1017,12 @@ warn_deprecated (const char *what,
 
 bfd_vma
 read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
-		      char *buf,
+		      bfd_byte *buf,
 		      unsigned int *bytes_read_ptr)
 {
   bfd_vma result;
   unsigned int num_read;
-  int shift;
+  unsigned int shift;
   unsigned char byte;
 
   result = 0;
@@ -878,7 +1030,7 @@ read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
   num_read = 0;
   do
     {
-      byte = bfd_get_8 (abfd, (bfd_byte *) buf);
+      byte = bfd_get_8 (abfd, buf);
       buf++;
       num_read++;
       result |= (((bfd_vma) byte & 0x7f) << shift);
@@ -893,12 +1045,12 @@ read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
 
 bfd_signed_vma
 read_signed_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
-		    char *buf,
-		    unsigned int * bytes_read_ptr)
+		    bfd_byte *buf,
+		    unsigned int *bytes_read_ptr)
 {
   bfd_vma result;
-  int shift;
-  int num_read;
+  unsigned int shift;
+  unsigned int num_read;
   unsigned char byte;
 
   result = 0;
@@ -906,15 +1058,35 @@ read_signed_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
   num_read = 0;
   do
     {
-      byte = bfd_get_8 (abfd, (bfd_byte *) buf);
+      byte = bfd_get_8 (abfd, buf);
       buf ++;
       num_read ++;
       result |= (((bfd_vma) byte & 0x7f) << shift);
       shift += 7;
     }
   while (byte & 0x80);
-  if ((shift < 8 * sizeof (result)) && (byte & 0x40))
+  if (shift < 8 * sizeof (result) && (byte & 0x40))
     result |= (((bfd_vma) -1) << shift);
   *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;
+}