1 /* Copyright (C) 2003, 2007 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 #include <kernel-features.h>
21 /* All locks in libc are private. Use the kernel feature if possible. */
22 #define FUTEX_PRIVATE_FLAG 128
23 #ifdef __ASSUME_PRIVATE_FUTEX
24 # define FUTEX_WAIT (0 | FUTEX_PRIVATE_FLAG)
25 # define FUTEX_WAKE (1 | FUTEX_PRIVATE_FLAG)
27 # define LOAD_FUTEX_WAIT(reg,tmp) \
33 99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \
36 # define LOAD_FUTEX_WAKE(reg,tmp) \
42 mov #FUTEX_WAKE, tmp ; \
43 99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \
47 #include "lowlevellock.S"