X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Flibbfd.c;h=3579ddb855a643da28c0edf59b43399da324f894;hb=af2d5cd8e9f81832b04af6cd0e51def4065bbf71;hp=24da441ac13d253d72761bbc69fba1d647efa5f2;hpb=d00dd7dc5e415503de88614bf2ea4aafa2bca819;p=deliverable%2Fbinutils-gdb.git

diff --git a/bfd/libbfd.c b/bfd/libbfd.c
index 24da441ac1..3579ddb855 100644
--- a/bfd/libbfd.c
+++ b/bfd/libbfd.c
@@ -1,5 +1,5 @@
 /* Assorted BFD support routines, only used internally.
-   Copyright (C) 1990-2018 Free Software Foundation, Inc.
+   Copyright (C) 1990-2020 Free Software Foundation, Inc.
    Written by Cygnus Support.
 
    This file is part of BFD, the Binary File Descriptor library.
@@ -245,7 +245,7 @@ _bfd_nocore_core_file_pid (bfd *ignore_abfd ATTRIBUTE_UNUSED)
   return 0;
 }
 
-const bfd_target *
+bfd_cleanup
 _bfd_dummy_target (bfd *ignore_abfd ATTRIBUTE_UNUSED)
 {
   bfd_set_error (bfd_error_wrong_format);
@@ -254,6 +254,10 @@ _bfd_dummy_target (bfd *ignore_abfd ATTRIBUTE_UNUSED)
 
 /* Allocate memory using malloc.  */
 
+#ifndef SSIZE_MAX
+#define SSIZE_MAX ((size_t) -1 >> 1)
+#endif
+
 void *
 bfd_malloc (bfd_size_type size)
 {
@@ -262,7 +266,7 @@ bfd_malloc (bfd_size_type size)
 
   if (size != sz
       /* This is to pacify memory checkers like valgrind.  */
-      || ((signed long) sz) < 0)
+      || sz > SSIZE_MAX)
     {
       bfd_set_error (bfd_error_no_memory);
       return NULL;
@@ -275,24 +279,6 @@ 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)
-{
-  if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
-      && size != 0
-      && nmemb > ~(bfd_size_type) 0 / size)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return NULL;
-    }
-
-  return bfd_malloc (size * nmemb);
-}
-
-/* Reallocate memory using realloc.  */
-
 void *
 bfd_realloc (void *ptr, bfd_size_type size)
 {
@@ -304,7 +290,7 @@ bfd_realloc (void *ptr, bfd_size_type size)
 
   if (size != sz
       /* This is to pacify memory checkers like valgrind.  */
-      || ((signed long) sz) < 0)
+      || sz > SSIZE_MAX)
     {
       bfd_set_error (bfd_error_no_memory);
       return NULL;
@@ -318,22 +304,6 @@ 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)
-{
-  if ((nmemb | size) >= HALF_BFD_SIZE_TYPE
-      && size != 0
-      && nmemb > ~(bfd_size_type) 0 / size)
-    {
-      bfd_set_error (bfd_error_no_memory);
-      return NULL;
-    }
-
-  return bfd_realloc (ptr, size * nmemb);
-}
-
 /* Reallocate memory using realloc.
    If this fails the pointer is freed before returning.  */
 
@@ -361,25 +331,6 @@ 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 = bfd_malloc2 (nmemb, size);
-
-  if (ptr != NULL)
-    {
-      size_t sz = nmemb * size;
-
-      if (sz > 0)
-	memset (ptr, 0, sz);
-    }
-
-  return ptr;
-}
-
 /*
 INTERNAL_FUNCTION
 	bfd_write_bigendian_4byte_int
@@ -445,9 +396,9 @@ DESCRIPTION
 .#define bfd_put_signed_8 \
 .  bfd_put_8
 .#define bfd_get_8(abfd, ptr) \
-.  (*(const unsigned char *) (ptr) & 0xff)
+.  ((bfd_vma) *(const unsigned char *) (ptr) & 0xff)
 .#define bfd_get_signed_8(abfd, ptr) \
-.  (((*(const unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80)
+.  ((((bfd_signed_vma) *(const unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80)
 .
 .#define bfd_put_16(abfd, val, ptr) \
 .  BFD_SEND (abfd, bfd_putx16, ((val),(ptr)))
@@ -458,6 +409,20 @@ DESCRIPTION
 .#define bfd_get_signed_16(abfd, ptr) \
 .  BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
 .
+.#define bfd_put_24(abfd, val, ptr) \
+.  do					\
+.    if (bfd_big_endian (abfd))		\
+.      bfd_putb24 ((val), (ptr));	\
+.    else				\
+.      bfd_putl24 ((val), (ptr));	\
+.  while (0)
+.
+.bfd_vma bfd_getb24 (const void *p);
+.bfd_vma bfd_getl24 (const void *p);
+.
+.#define bfd_get_24(abfd, ptr) \
+.  (bfd_big_endian (abfd) ? bfd_getb24 (ptr) : bfd_getl24 (ptr))
+.
 .#define bfd_put_32(abfd, val, ptr) \
 .  BFD_SEND (abfd, bfd_putx32, ((val),(ptr)))
 .#define bfd_put_signed_32 \
@@ -477,7 +442,7 @@ DESCRIPTION
 .  BFD_SEND (abfd, bfd_getx_signed_64, (ptr))
 .
 .#define bfd_get(bits, abfd, ptr)			\
-.  ((bits) == 8 ? (bfd_vma) bfd_get_8 (abfd, ptr)	\
+.  ((bits) == 8 ? bfd_get_8 (abfd, ptr)			\
 .   : (bits) == 16 ? bfd_get_16 (abfd, ptr)		\
 .   : (bits) == 32 ? bfd_get_32 (abfd, ptr)		\
 .   : (bits) == 64 ? bfd_get_64 (abfd, ptr)		\
@@ -613,6 +578,48 @@ bfd_putl16 (bfd_vma data, void *p)
   addr[1] = (data >> 8) & 0xff;
 }
 
+void
+bfd_putb24 (bfd_vma data, void *p)
+{
+  bfd_byte *addr = (bfd_byte *) p;
+  addr[0] = (data >> 16) & 0xff;
+  addr[1] = (data >> 8) & 0xff;
+  addr[2] = data & 0xff;
+}
+
+void
+bfd_putl24 (bfd_vma data, void *p)
+{
+  bfd_byte *addr = (bfd_byte *) p;
+  addr[0] = data & 0xff;
+  addr[1] = (data >> 8) & 0xff;
+  addr[2] = (data >> 16) & 0xff;
+}
+
+bfd_vma
+bfd_getb24 (const void *p)
+{
+  const bfd_byte *addr = (const bfd_byte *) p;
+  unsigned long v;
+
+  v =  (unsigned long) addr[0] << 16;
+  v |= (unsigned long) addr[1] << 8;
+  v |= (unsigned long) addr[2];
+  return v;
+}
+
+bfd_vma
+bfd_getl24 (const void *p)
+{
+  const bfd_byte *addr = (const bfd_byte *) p;
+  unsigned long v;
+
+  v = (unsigned long) addr[0];
+  v |= (unsigned long) addr[1] << 8;
+  v |= (unsigned long) addr[2] << 16;
+  return v;
+}
+
 bfd_vma
 bfd_getb32 (const void *p)
 {
@@ -874,7 +881,7 @@ _bfd_generic_get_section_contents (bfd *abfd,
     {
       _bfd_error_handler
 	/* xgettext:c-format */
-	(_("%B: unable to get decompressed section %A"),
+	(_("%pB: unable to get decompressed section %pA"),
 	 abfd, section);
       bfd_set_error (bfd_error_invalid_operation);
       return FALSE;