/* low level locking for pthread library. SPARC version. Copyright (C) 2003-2019 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Paul Mackerras , 2003. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include #include #include #include #include void __lll_lock_wait_private (int *futex) { do { int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); if (oldval != 0) lll_futex_wait (futex, 2, LLL_PRIVATE); } while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); } /* These functions don't get included in libc.so */ #if IS_IN (libpthread) void __lll_lock_wait (int *futex, int private) { do { int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); if (oldval != 0) lll_futex_wait (futex, 2, private); } while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); } #endif