diff options
Diffstat (limited to 'stdlib/cxa_finalize.c')
| -rw-r--r-- | stdlib/cxa_finalize.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/stdlib/cxa_finalize.c b/stdlib/cxa_finalize.c index b013be8524..bb49f36ddd 100644 --- a/stdlib/cxa_finalize.c +++ b/stdlib/cxa_finalize.c @@ -31,6 +31,7 @@ __cxa_finalize (void *d) { struct exit_function_list *funcs; + restart: for (funcs = __exit_funcs; funcs; funcs = funcs->next) { struct exit_function *f; @@ -38,17 +39,26 @@ __cxa_finalize (void *d) for (f = &funcs->fns[funcs->idx - 1]; f >= &funcs->fns[0]; --f) { 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); #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; } } } |