diff options
Diffstat (limited to 'stdlib/cxa_atexit.c')
| -rw-r--r-- | stdlib/cxa_atexit.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/stdlib/cxa_atexit.c b/stdlib/cxa_atexit.c index 6d65f7e615..cc9408adb1 100644 --- a/stdlib/cxa_atexit.c +++ b/stdlib/cxa_atexit.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1999-2018 Free Software Foundation, Inc. +/* Copyright (C) 1999-2019 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 @@ -13,7 +13,7 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ + <https://www.gnu.org/licenses/>. */ #include <assert.h> #include <stdlib.h> @@ -36,6 +36,10 @@ __internal_atexit (void (*func) (void *), void *arg, void *d, { struct exit_function *new; + /* As a QoI issue we detect NULL early with an assertion instead + of a SIGSEGV at program exit when the handler is run (bug 20544). */ + assert (func != NULL); + __libc_lock_lock (__exit_funcs_lock); new = __new_exitfn (listp); |