diff options
author | Roland McGrath <roland@gnu.org> | 2006-07-29 23:12:43 +0000 |
---|---|---|
committer | Roland McGrath <roland@gnu.org> | 2006-07-29 23:12:43 +0000 |
commit | ab5823b4b6e760345d347b98830ccc75aa81bff6 (patch) | |
tree | f9b25d5f9a16e7ce0318aaf3adcccec0e83fd804 /stdlib | |
parent | aa583d2ff9fca922771d88f1afa255847f2aa4ed (diff) |
Updated to fedora-glibc-20060729T2255cvs/fedora-glibc-2_4_90-14
Diffstat (limited to 'stdlib')
-rw-r--r-- | stdlib/cxa_atexit.c | 8 | ||||
-rw-r--r-- | stdlib/cxa_finalize.c | 34 | ||||
-rw-r--r-- | stdlib/exit.h | 5 |
3 files changed, 34 insertions, 13 deletions
diff --git a/stdlib/cxa_atexit.c b/stdlib/cxa_atexit.c index 9b7a932b85..3bdf871e53 100644 --- a/stdlib/cxa_atexit.c +++ b/stdlib/cxa_atexit.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1999, 2001, 2002, 2005 Free Software Foundation, Inc. +/* Copyright (C) 1999, 2001, 2002, 2005, 2006 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 @@ -56,6 +56,7 @@ __libc_lock_define_initialized (static, lock) static struct exit_function_list initial; struct exit_function_list *__exit_funcs = &initial; +uint64_t __new_exitfn_called; struct exit_function * __new_exitfn (void) @@ -111,7 +112,10 @@ __new_exitfn (void) /* Mark entry as used, but we don't know the flavor now. */ if (r != NULL) - r->flavor = ef_us; + { + r->flavor = ef_us; + ++__new_exitfn_called; + } __libc_lock_unlock (lock); diff --git a/stdlib/cxa_finalize.c b/stdlib/cxa_finalize.c index 43fcbc484f..bb49f36ddd 100644 --- a/stdlib/cxa_finalize.c +++ b/stdlib/cxa_finalize.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1999, 2001, 2002, 2003, 2005 Free Software Foundation, Inc. +/* Copyright (C) 1999,2001,2002,2003,2005,2006 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 @@ -31,22 +31,36 @@ __cxa_finalize (void *d) { struct exit_function_list *funcs; + restart: for (funcs = __exit_funcs; funcs; funcs = funcs->next) { struct exit_function *f; for (f = &funcs->fns[funcs->idx - 1]; f >= &funcs->fns[0]; --f) - if ((d == NULL || d == f->func.cxa.dso_handle) - /* We don't want to run this cleanup more than once. */ - && ! atomic_compare_and_exchange_bool_acq (&f->flavor, ef_free, - ef_cxa)) - { - void (*cxafn) (void *arg, int status) = f->func.cxa.fn; + { + void (*cxafn) (void *arg, int status); + void *cxaarg; + + if ((d == NULL || d == f->func.cxa.dso_handle) + /* We don't want to run this cleanup more than once. */ + && (cxafn = f->func.cxa.fn, + cxaarg = f->func.cxa.arg, + ! atomic_compare_and_exchange_bool_acq (&f->flavor, ef_free, + ef_cxa))) + { + uint64_t check = __new_exitfn_called; + #ifdef PTR_DEMANGLE - PTR_DEMANGLE (cxafn); + PTR_DEMANGLE (cxafn); #endif - cxafn (f->func.cxa.arg, 0); - } + cxafn (cxaarg, 0); + + /* It is possible that that last exit function registered + more exit functions. Start the loop over. */ + if (__builtin_expect (check != __new_exitfn_called, 0)) + goto restart; + } + } } /* Remove the registered fork handlers. We do not have to diff --git a/stdlib/exit.h b/stdlib/exit.h index 055506f04e..779675d134 100644 --- a/stdlib/exit.h +++ b/stdlib/exit.h @@ -1,4 +1,5 @@ -/* Copyright (C) 1991,1996,1997,1999,2001,2002 Free Software Foundation, Inc. +/* Copyright (C) 1991,1996,1997,1999,2001,2002,2006 + 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 @@ -19,6 +20,7 @@ #ifndef _EXIT_H #define _EXIT_H 1 +#include <stdint.h> enum { @@ -59,5 +61,6 @@ struct exit_function_list extern struct exit_function_list *__exit_funcs attribute_hidden; extern struct exit_function *__new_exitfn (void); +extern uint64_t __new_exitfn_called attribute_hidden; #endif /* exit.h */ |