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

diff --git a/bfd/bfd.c b/bfd/bfd.c
index ce7b3918d678150f2861f5bd2e1b6fe2c24fc869..847da522ab0ccbaba1d639c03e1afac89bd26f63 100644 (file)
--- a/bfd/bfd.c
+++ b/bfd/bfd.c
@@ -150,6 +150,13 @@ CODE_FRAGMENT
 .     origin, with origin set to 0 for non archive files.  *}
 .  ufile_ptr origin;
 .
+.  {* The origin in the archive of the proxy entry.  This will
+.     normally be the same as origin, except for thin archives,
+.     when it will contain the current offset of the proxy in the
+.     thin archive rather than the offset of the bfd in its actual
+.     container.  *}
+.  ufile_ptr proxy_origin;
+.
 .  {* A hash table for section names.  *}
 .  struct bfd_hash_table section_htab;
 .
@@ -169,7 +176,8 @@ CODE_FRAGMENT
 .  {* Used for input and output.  *}
 .  unsigned int symcount;
 .
-.  {* Symbol table for output BFD (with symcount entries).  *}
+.  {* Symbol table for output BFD (with symcount entries).
+.     Also used by the linker to cache input BFD symbols.  *}
 .  struct bfd_symbol  **outsymbols;
 .
 .  {* Used for slurped dynamic symbol tables.  *}
@@ -183,6 +191,8 @@ CODE_FRAGMENT
 .  struct bfd *my_archive;      {* The containing archive BFD.  *}
 .  struct bfd *archive_next;    {* The next BFD in the archive.  *}
 .  struct bfd *archive_head;    {* The first BFD in the archive.  *}
+.  struct bfd *nested_archives; {* List of nested archive in a flattened
+.                                  thin archive.  *}
 .
 .  {* A chain of BFD structures involved in a link.  *}
 .  struct bfd *link_next;
@@ -265,6 +275,9 @@ CODE_FRAGMENT
 .
 .  {* Have archive map.  *}
 .  unsigned int has_armap : 1;
+.
+.  {* Set if this is a thin archive.  *}
+.  unsigned int is_thin_archive : 1;
 .};
 .
 */
@@ -988,6 +1001,9 @@ bfd_get_sign_extend_vma (bfd *abfd)
       || strcmp (name, "pei-arm-wince-little") == 0)
     return 1;
 
+  if (CONST_STRNEQ (name, "mach-o"))
+    return 0;
+
   bfd_set_error (bfd_error_wrong_format);
   return -1;
 }
@@ -1459,9 +1475,8 @@ is32bit (bfd *abfd)
       return bed->s->elfclass == ELFCLASS32;
     }
 
-  /* For non-ELF, make a guess based on the target name.  */
-  return (strstr (bfd_get_target (abfd), "64") == NULL
-         && strcmp (bfd_get_target (abfd), "mmo") != 0);
+  /* For non-ELF targets, use architecture information.  */
+  return bfd_arch_bits_per_address (abfd) <= 32;
 }
 #endif
 
@@ -1817,10 +1832,12 @@ bfd_demangle (bfd *abfd, const char *name, int options)
   char *res, *alloc;
   const char *pre, *suf;
   size_t pre_len;
+  bfd_boolean skip_lead;
 
-  if (abfd != NULL
-      && *name != '\0'
-      && bfd_get_symbol_leading_char (abfd) == *name)
+  skip_lead = (abfd != NULL
+              && *name != '\0'
+              && bfd_get_symbol_leading_char (abfd) == *name);
+  if (skip_lead)
     ++name;
 
   /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
@@ -1851,7 +1868,18 @@ bfd_demangle (bfd *abfd, const char *name, int options)
     free (alloc);
 
   if (res == NULL)
-    return NULL;
+    {
+      if (skip_lead)
+       {
+         size_t len = strlen (pre) + 1;
+         alloc = bfd_malloc (len);
+         if (alloc == NULL)
+           return NULL;
+         memcpy (alloc, pre, len);
+         return alloc;
+       }
+      return NULL;
+    }
 
   /* Put back any prefix or suffix.  */
   if (pre_len != 0 || suf != NULL)