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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef BFDLINK_H
#define BFDLINK_H
{
bfd_link_hash_new, /* Symbol is new. */
bfd_link_hash_undefined, /* Symbol seen before, but undefined. */
- bfd_link_hash_weak, /* Symbol is weak and undefined. */
+ bfd_link_hash_undefweak, /* Symbol is weak and undefined. */
bfd_link_hash_defined, /* Symbol is defined. */
+ bfd_link_hash_defweak, /* Symbol is weak and defined. */
bfd_link_hash_common, /* Symbol is common. */
bfd_link_hash_indirect, /* Symbol is an indirect link. */
bfd_link_hash_warning /* Like indirect, but warn if referenced. */
Weak symbols are not kept on this list.
- Defined symbols use this field as a reference marker. If the
- field is not NULL, or this structure is the tail of the undefined
- symbol list, the symbol has been referenced. If the symbol is
- undefined and becomes defined, this field will automatically be
- non-NULL since the symbol will have been on the undefined symbol
- list. */
+ Defined and defweak symbols use this field as a reference marker.
+ If the field is not NULL, or this structure is the tail of the
+ undefined symbol list, the symbol has been referenced. If the
+ symbol is undefined and becomes defined, this field will
+ automatically be non-NULL since the symbol will have been on the
+ undefined symbol list. */
struct bfd_link_hash_entry *next;
/* A union of information depending upon the type. */
union
{
/* Nothing is kept for bfd_hash_new. */
- /* bfd_link_hash_undefined, bfd_link_hash_weak. */
+ /* bfd_link_hash_undefined, bfd_link_hash_undefweak. */
struct
{
bfd *abfd; /* BFD symbol was found in. */
} undef;
- /* bfd_link_hash_defined. */
+ /* bfd_link_hash_defined, bfd_link_hash_defweak. */
struct
{
bfd_vma value; /* Symbol value. */
/* bfd_link_hash_common. */
struct
{
- bfd_vma size; /* Common symbol size. */
- asection *section; /* Symbol section. */
+ /* The linker needs to know three things about common
+ symbols: the size, the alignment, and the section in
+ which the symbol should be placed. We store the size
+ here, and we allocate a small structure to hold the
+ section and the alignment. The alignment is stored as a
+ power of two. We don't store all the information
+ directly because we don't want to increase the size of
+ the union; this structure is a major space user in the
+ linker. */
+ bfd_size_type size; /* Common symbol size. */
+ struct bfd_link_hash_common_entry
+ {
+ unsigned int alignment_power; /* Alignment. */
+ asection *section; /* Symbol section. */
+ } *p;
} c;
} u;
};
type of the entries in the hash table, which is sometimes
important information when linking object files of different
types together. */
- bfd_target *creator;
+ const bfd_target *creator;
/* A linked list of undefined and common symbols, linked through the
next field in the bfd_link_hash_entry structure. */
struct bfd_link_hash_entry *undefs;
boolean relocateable;
/* true if BFD should generate a shared object. */
boolean shared;
+ /* true if BFD should pre-bind symbols in a shared object. */
+ boolean symbolic;
/* Which symbols to strip. */
enum bfd_link_strip strip;
/* Which local symbols to discard. */
/* Hash table of symbols to report back via notice_callback. If
this is NULL no symbols are reported back. */
struct bfd_hash_table *notice_hash;
+
+ /* If a base output file is wanted, then this points to it */
+ PTR base_file;
};
/* This structures holds a set of callback functions. These are
bfd_vma nval));
/* A function which is called when a common symbol is defined
multiple times. NAME is the symbol appearing multiple times.
- OBFD is the BFD of the existing symbol. OTYPE is the type of the
- existing symbol, either bfd_link_hash_defined or
- bfd_link_hash_common. If OTYPE is bfd_link_hash_common, OSIZE is
- the size of the existing symbol. NBFD is the BFD of the new
- symbol. NTYPE is the type of the new symbol, either
- bfd_link_hash_defined or bfd_link_hash_common. If NTYPE is
- bfd_link_hash_common, NSIZE is the size of the new symbol. */
+ OBFD is the BFD of the existing symbol; it may be NULL if this is
+ not known. OTYPE is the type of the existing symbol, which may
+ be bfd_link_hash_defined, bfd_link_hash_defweak,
+ bfd_link_hash_common, or bfd_link_hash_indirect. If OTYPE is
+ bfd_link_hash_common, OSIZE is the size of the existing symbol.
+ NBFD is the BFD of the new symbol. NTYPE is the type of the new
+ symbol, one of bfd_link_hash_defined, bfd_link_hash_common, or
+ bfd_link_hash_indirect. If NTYPE is bfd_link_hash_common, NSIZE
+ is the size of the new symbol. */
boolean (*multiple_common) PARAMS ((struct bfd_link_info *,
const char *name,
bfd *obfd,
/* A function which is called when a relocation is attempted against
an undefined symbol. NAME is the symbol which is undefined.
ABFD, SECTION and ADDRESS identify the location from which the
- reference is made. */
+ reference is made. In some cases SECTION may be NULL. */
boolean (*undefined_symbol) PARAMS ((struct bfd_link_info *,
const char *name, bfd *abfd,
asection *section, bfd_vma address));
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