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Jakub Jelinek <jakub@redhat.com>

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Implement reference counting of scope records.
	* elf/dl-close.c (_dl_close): Remove all scopes from removed objects
	from the list in objects which remain.  Always allocate new scope
	record.
	* elf/dl-open.c (dl_open_worker): When growing array for scopes,
	don't resize, allocate a new one.
	* elf/dl-runtime.c: Update reference counters before using a scope
	array.
	* elf/dl-sym.c: Likewise.
	* elf/dl-libc.c: Adjust for l_scope name change.
	* elf/dl-load.c: Likewise.
	* elf/dl-object.c: Likewise.
	* elf/rtld.c: Likewise.
	* include/link.h: Inlcude <rtld-lowlevel.h>.  Define struct
	r_scoperec.  Replace r_scope with pointer to r_scoperec structure.
	Add l_scoperec_lock.
	* sysdeps/generic/ldsodefs.h: Include <rtld-lowlevel.h>.
	* sysdeps/generic/rtld-lowlevel.h: New file.

	* include/atomic.h: Rename atomic_and to atomic_and_val and
	atomic_or to atomic_or_val.  Define new macros atomic_and and
	atomic_or which do not return values.
	* sysdeps/x86_64/bits/atomic.h: Define atomic_and and atomic_or.
	Various cleanups.
	* sysdeps/i386/i486/bits/atomic.h: Likewise.
This commit is contained in:
Ulrich Drepper
2006-10-10 00:51:29 +00:00
parent 7484f797e4
commit 1100f84983
18 changed files with 5651 additions and 4582 deletions
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5
elf/dl-libc.c
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@ -1,5 +1,5 @@
/* Handle loading and unloading shared objects for internal libc purposes.
Copyright (C) 1999,2000,2001,2002,2004,2005 Free Software Foundation, Inc.
Copyright (C) 1999-2002,2004,2005,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Zack Weinberg <zack@rabi.columbia.edu>, 1999.
@ -133,7 +133,8 @@ do_dlsym_private (void *ptr)
struct do_dlsym_args *args = (struct do_dlsym_args *) ptr;
args->ref = NULL;
l = GLRO(dl_lookup_symbol_x) (args->name, args->map, &args->ref,
args->map->l_scope, &vers, 0, 0, NULL);
args->map->l_scoperec->scope, &vers, 0, 0,
NULL);
args->loadbase = l;
}