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* stdlib/cxa_atexit.c: Use PTR_MANGLE on function pointer. Fill in

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flavor field last and protect with memory barrier.
	* stdlib/on_exit.c: Likewise.
	* stdlib/cxa_finalize.c: Use PTR_DEMANGLE on function pointer before
	using it.
	* stdlib/exit.c: Likewise.
This commit is contained in:
Ulrich Drepper
2005-12-18 17:32:37 +00:00
parent 3467f5c369
commit a3c8855372
5 changed files with 51 additions and 8 deletions
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11
stdlib/cxa_finalize.c
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@@ -1,4 +1,4 @@
/* Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc.
/* Copyright (C) 1999, 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -21,6 +21,7 @@
#include <atomic.h>
#include "exit.h"
#include <fork.h>
#include <sysdep.h>
/* If D is non-NULL, call all functions registered with `__cxa_atexit'
with the same dso handle. Otherwise, if D is NULL, call all of the
@@ -39,7 +40,13 @@ __cxa_finalize (void *d)
/* We don't want to run this cleanup more than once. */
&& ! atomic_compare_and_exchange_bool_acq (&f->flavor, ef_free,
ef_cxa))
(*f->func.cxa.fn) (f->func.cxa.arg, 0);
{
void (*cxafn) (void *arg, int status) = f->func.cxa.fn;
#ifdef PTR_DEMANGLE
PTR_DEMANGLE (cxafn);
#endif
cxafn (f->func.cxa.arg, 0);
}
}
/* Remove the registered fork handlers. We do not have to