+Wed May 6 13:26:19 1992 Steve Chamberlain (sac@thepub.cygnus.com)
+
+ changed calling convention for Q_enter_global_ref
+ * ldexp.c, ldlang.c, ldmain.c: reflect this
+ * ldver.c: bump version to 1.97.1
+ * ldindr.c (add_indirect): when an edict declaring an indirect
+ symbol is found, make sure that any ideas about the symbol being
+ common are changed if it now known to be defined.
+ * ldmain.c (linear_library): complain once if archive isn't
+ ranlibbed.
+ * ldlang.h, ldlang.c: make room for and initialize the complain
+ once field.
+
Wed May 6 11:07:35 1992 K. Richard Pixley (rich@rtl.cygnus.com)
* Makefile.in: use flex & bison from ../ if they exist.
/* ldindr.c
Handle indirect symbols.
+ An indirect symbol is where a global symbol in one file say's that
+ all refs like it should be turned into refs of the symbol pointed
+ at by the value of the indirect symbol.
+
BFD supplies symbols to be indirected with the BFD_INDIRECT bit
set. Whenever the linker gets one of these, it calls add_indirect
with the symbol. We look up the symbol which this one dereferneces,
}
}
+#if 0
+void
+DEFUN(copy_over,(ldsym, bfdsym),
+ ldsym_type *ldsym AND
+ asymbol **bfdsym)
+{
+ while (list && *list)
+ {
+ refize(Q_enter_global_ref(list, name);
+ list = (asymbol **)((*list)->udata);
+ }
+}
+#endif
+
+/* This call allows us to change the symbol table so that all future
+ refs to the symbol are patched to know the alias - but we still
+ have to fix all the old ones */
void
DEFUN(add_indirect,(ptr),
asymbol **ptr)
{
+ asymbol **p;
ldsym_type *lgs = ldsym_get((*ptr)->name);
ldsym_type *new = ldsym_get(((asymbol *)((*ptr)->value))->name);
/* If the mapping has already been done, stop now */
if (lgs == new) return;
+
lgs->flags |= SYM_INDIRECT;
+ if (lgs->sdefs_chain && lgs->sdefs_chain[0])
+ {
+ einfo("indirect symbol already has definition %s", lgs->sdefs_chain[0]);
+ }
new->scoms_chain = move_it(new->scoms_chain, lgs->scoms_chain);
lgs->scoms_chain = 0;
new->srefs_chain = move_it(new->srefs_chain, lgs->srefs_chain);
new->sdefs_chain = move_it(new->sdefs_chain, lgs->sdefs_chain);
lgs->sdefs_chain = 0;
- lgs->sdefs_chain = (asymbol **)new;
+ /* If the result has any commons they should be turned into refs */
+
+ if (new->sdefs_chain && new->scoms_chain)
+ {
+ refize(new, new->scoms_chain);
+ }
}
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-/*
- * $Id$
- */
-
/*
We keep a hash table of global symbols. Each entry in a hash table
is called an ldsym_type. Each has three chains; a pointer to a
chain of definitions for the symbol (hopefully one long), a pointer
to a chain of references to the symbol, and a pointer to a chain of
common symbols. Each pointer points into the canonical symbol table
- provided by bfd, each one of which points to an asymbol. Duringing
+ provided by bfd, each one of which points to an asymbol. During
linkage, the linker uses the udata field to point to the next entry
in a canonical table....