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Better indirect and warning symbol handling inspired by Stuart

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Quick <stuck@cs.man.ac.uk>.
	* linker.c (enum link_action): Add REF, MIND, CWARN, REFC.
	(link_action): Change UNDEF_ROW/def and UNDEFW_ROW/def from NOACT
	to REF.  Change UNDEF_ROW/indr and UNDEFW_ROW/indr from CYCLE to
	REFC.  Change DEF_ROW/indr and COMMON_ROW/indr from CYCLE to MDEF.
	Change DEFW_ROW/indr from CYCLE to NOACT.  Change INDR_ROW/indr
	from MDEF to MIND.  Change INDR_ROW/warn from WARNC to CYCLE.
	Change WARN_ROW/def and WARN_ROW/indr from MWARN to CWARN.  Change
	WARN_ROW/com from MWARN to WARN.  Change WARN_ROW/warn from NOACT
	to CYCLE.  Change SET_ROW/warn from WARNC to CYCLE>
	(_bfd_generic_link_add_one_symbol): Handle REF, MIND, CWARN and
	REFC.  If a new indirect symbol has been referenced, push the
	reference down to the symbol it points to.  FIx handling of WARN.
	* aoutx.h (translate_from_native_sym_flags): If N_WARNING, don't
	clobber e_type of next symbol.
	(translate_to_native_sym_flags): Likewise.
	(aout_link_write_symbols): Loop on bfd_link_hash_warning as well
	as bfd_link_hash_indirect.
This commit is contained in:
Ian Lance Taylor 1994-06-06 21:54:54 +00:00
parent 6ceb7942c3
commit 118e8d1c7d
2 changed files with 22 additions and 5 deletions
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20
bfd/ChangeLog
View file

@ -1,5 +1,25 @@
Mon Jun 6 10:57:28 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
Better indirect and warning symbol handling inspired by Stuart
Quick <stuck@cs.man.ac.uk>.
* linker.c (enum link_action): Add REF, MIND, CWARN, REFC.
(link_action): Change UNDEF_ROW/def and UNDEFW_ROW/def from NOACT
to REF. Change UNDEF_ROW/indr and UNDEFW_ROW/indr from CYCLE to
REFC. Change DEF_ROW/indr and COMMON_ROW/indr from CYCLE to MDEF.
Change DEFW_ROW/indr from CYCLE to NOACT. Change INDR_ROW/indr
from MDEF to MIND. Change INDR_ROW/warn from WARNC to CYCLE.
Change WARN_ROW/def and WARN_ROW/indr from MWARN to CWARN. Change
WARN_ROW/com from MWARN to WARN. Change WARN_ROW/warn from NOACT
to CYCLE. Change SET_ROW/warn from WARNC to CYCLE>
(_bfd_generic_link_add_one_symbol): Handle REF, MIND, CWARN and
REFC. If a new indirect symbol has been referenced, push the
reference down to the symbol it points to. FIx handling of WARN.
* aoutx.h (translate_from_native_sym_flags): If N_WARNING, don't
clobber e_type of next symbol.
(translate_to_native_sym_flags): Likewise.
(aout_link_write_symbols): Loop on bfd_link_hash_warning as well
as bfd_link_hash_indirect.
* libaout.h (struct aout_link_hash_entry): New field written.
* aoutx.h (NAME(aout,link_hash_newfunc)): Initialize written.
(aout_link_write_symbols): Use written, not root.written.

7
bfd/aoutx.h
View file

@ -1288,9 +1288,6 @@ translate_from_native_sym_flags (sym_pointer, cache_ptr, abfd)
pick one arbitrarily. */
cache_ptr->symbol.section = &bfd_abs_section;
/* We furgle with the next symbol in place.
We don't want it to be undefined, we'll trample the type */
(sym_pointer + 1)->e_type[0] = 0xff;
break;
}
if ((cache_ptr->type | N_EXT) == (N_INDR | N_EXT))
@ -1453,7 +1450,6 @@ translate_to_native_sym_flags (sym_pointer, cache_ptr, abfd)
if (cache_ptr->flags & (BSF_WARNING)) {
sym_pointer->e_type[0] = N_WARNING;
(sym_pointer+1)->e_type[0] = 1;
}
if (cache_ptr->flags & BSF_DEBUGGING) {
@ -3720,7 +3716,8 @@ aout_link_write_symbols (finfo, input_bfd, symbol_map)
|| h->root.type == bfd_link_hash_warning))
{
hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
while (hresolve->root.type == bfd_link_hash_indirect)
while (hresolve->root.type == bfd_link_hash_indirect
|| hresolve->root.type == bfd_link_hash_warning)
hresolve = ((struct aout_link_hash_entry *)
hresolve->root.u.i.link);
*sym_hash = hresolve;