diff options
Diffstat (limited to 'sysdeps/mach/hurd/htl/pt-sigstate-init.c')
-rw-r--r-- | sysdeps/mach/hurd/htl/pt-sigstate-init.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/htl/pt-sigstate-init.c b/sysdeps/mach/hurd/htl/pt-sigstate-init.c new file mode 100644 index 0000000000..a6b4f76b25 --- /dev/null +++ b/sysdeps/mach/hurd/htl/pt-sigstate-init.c @@ -0,0 +1,44 @@ +/* Initialize the signal state. Hurd on Mach version. + Copyright (C) 2002-2018 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 + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +#include <pthread.h> +#include <pt-internal.h> +#include <hurd/signal.h> + +error_t +__pthread_sigstate_init (struct __pthread *thread) +{ + static int do_init_global; + + /* Mark the thread as a global signal receiver so as to conform with + the pthread semantics. However, we must be careful. The first + pthread created is the main thread, during libpthread initialization. + We must not mark it, otherwise the sigprocmask call in + __pthread_create would try to access _hurd_global_sigstate, + which is not initialized yet. When glibc runs _hurdsig_init later + on, the message thread is created, which must not be marked either. */ + if (do_init_global) + { + struct hurd_sigstate *ss = _hurd_thread_sigstate (thread->kernel_thread); + (void) ss; + } + else if (__pthread_num_threads >= 2) + do_init_global = 1; + + return 0; +} |