binutils/

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

diff --git a/bfd/libbfd.c b/bfd/libbfd.c
index 57cfabcd460e478ba524ffc5f964b056e34ea702..f79e190540caf7572cade75641e36c8ac021aa73 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, 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., 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
@@ -103,6 +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,
@@ -247,6 +265,34 @@ bfd_realloc2 (void *ptr, bfd_size_type nmemb, bfd_size_type size)
   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 *
@@ -503,35 +549,35 @@ DESCRIPTION
 bfd_vma
 bfd_getb16 (const void *p)
 {
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   return (addr[0] << 8) | addr[1];
 }
 
 bfd_vma
 bfd_getl16 (const void *p)
 {
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   return (addr[1] << 8) | addr[0];
 }
 
 bfd_signed_vma
 bfd_getb_signed_16 (const void *p)
 {
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   return COERCE16 ((addr[0] << 8) | addr[1]);
 }
 
 bfd_signed_vma
 bfd_getl_signed_16 (const void *p)
 {
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   return COERCE16 ((addr[1] << 8) | addr[0]);
 }
 
 void
 bfd_putb16 (bfd_vma data, void *p)
 {
-  bfd_byte *addr = p;
+  bfd_byte *addr = (bfd_byte *) p;
   addr[0] = (data >> 8) & 0xff;
   addr[1] = data & 0xff;
 }
@@ -539,7 +585,7 @@ bfd_putb16 (bfd_vma data, void *p)
 void
 bfd_putl16 (bfd_vma data, void *p)
 {
-  bfd_byte *addr = p;
+  bfd_byte *addr = (bfd_byte *) p;
   addr[0] = data & 0xff;
   addr[1] = (data >> 8) & 0xff;
 }
@@ -547,7 +593,7 @@ bfd_putl16 (bfd_vma data, void *p)
 bfd_vma
 bfd_getb32 (const void *p)
 {
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   unsigned long v;
 
   v = (unsigned long) addr[0] << 24;
@@ -560,7 +606,7 @@ bfd_getb32 (const void *p)
 bfd_vma
 bfd_getl32 (const void *p)
 {
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   unsigned long v;
 
   v = (unsigned long) addr[0];
@@ -573,7 +619,7 @@ bfd_getl32 (const void *p)
 bfd_signed_vma
 bfd_getb_signed_32 (const void *p)
 {
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   unsigned long v;
 
   v = (unsigned long) addr[0] << 24;
@@ -586,7 +632,7 @@ bfd_getb_signed_32 (const void *p)
 bfd_signed_vma
 bfd_getl_signed_32 (const void *p)
 {
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   unsigned long v;
 
   v = (unsigned long) addr[0];
@@ -600,7 +646,7 @@ bfd_uint64_t
 bfd_getb64 (const void *p ATTRIBUTE_UNUSED)
 {
 #ifdef BFD_HOST_64_BIT
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   bfd_uint64_t v;
 
   v  = addr[0]; v <<= 8;
@@ -623,7 +669,7 @@ bfd_uint64_t
 bfd_getl64 (const void *p ATTRIBUTE_UNUSED)
 {
 #ifdef BFD_HOST_64_BIT
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   bfd_uint64_t v;
 
   v  = addr[7]; v <<= 8;
@@ -647,7 +693,7 @@ bfd_int64_t
 bfd_getb_signed_64 (const void *p ATTRIBUTE_UNUSED)
 {
 #ifdef BFD_HOST_64_BIT
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   bfd_uint64_t v;
 
   v  = addr[0]; v <<= 8;
@@ -670,7 +716,7 @@ bfd_int64_t
 bfd_getl_signed_64 (const void *p ATTRIBUTE_UNUSED)
 {
 #ifdef BFD_HOST_64_BIT
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   bfd_uint64_t v;
 
   v  = addr[7]; v <<= 8;
@@ -692,7 +738,7 @@ bfd_getl_signed_64 (const void *p ATTRIBUTE_UNUSED)
 void
 bfd_putb32 (bfd_vma data, void *p)
 {
-  bfd_byte *addr = p;
+  bfd_byte *addr = (bfd_byte *) p;
   addr[0] = (data >> 24) & 0xff;
   addr[1] = (data >> 16) & 0xff;
   addr[2] = (data >>  8) & 0xff;
@@ -702,7 +748,7 @@ bfd_putb32 (bfd_vma data, void *p)
 void
 bfd_putl32 (bfd_vma data, void *p)
 {
-  bfd_byte *addr = p;
+  bfd_byte *addr = (bfd_byte *) p;
   addr[0] = data & 0xff;
   addr[1] = (data >>  8) & 0xff;
   addr[2] = (data >> 16) & 0xff;
@@ -713,7 +759,7 @@ void
 bfd_putb64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
 {
 #ifdef BFD_HOST_64_BIT
-  bfd_byte *addr = p;
+  bfd_byte *addr = (bfd_byte *) p;
   addr[0] = (data >> (7*8)) & 0xff;
   addr[1] = (data >> (6*8)) & 0xff;
   addr[2] = (data >> (5*8)) & 0xff;
@@ -731,7 +777,7 @@ void
 bfd_putl64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
 {
 #ifdef BFD_HOST_64_BIT
-  bfd_byte *addr = p;
+  bfd_byte *addr = (bfd_byte *) p;
   addr[7] = (data >> (7*8)) & 0xff;
   addr[6] = (data >> (6*8)) & 0xff;
   addr[5] = (data >> (5*8)) & 0xff;
@@ -748,7 +794,7 @@ bfd_putl64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
 void
 bfd_put_bits (bfd_uint64_t data, void *p, int bits, bfd_boolean big_p)
 {
-  bfd_byte *addr = p;
+  bfd_byte *addr = (bfd_byte *) p;
   int i;
   int bytes;
 
@@ -768,7 +814,7 @@ bfd_put_bits (bfd_uint64_t data, void *p, int bits, bfd_boolean big_p)
 bfd_uint64_t
 bfd_get_bits (const void *p, int bits, bfd_boolean big_p)
 {
-  const bfd_byte *addr = p;
+  const bfd_byte *addr = (const bfd_byte *) p;
   bfd_uint64_t data;
   int i;
   int bytes;
@@ -802,7 +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;