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/* Copyright (C) 2003, 2007 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 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <kernel-features.h>
/* All locks in libc are private. Use the kernel feature if possible. */
#define FUTEX_PRIVATE_FLAG 128
#ifdef __ASSUME_PRIVATE_FUTEX
# define FUTEX_WAIT (0 | FUTEX_PRIVATE_FLAG)
# define FUTEX_WAKE (1 | FUTEX_PRIVATE_FLAG)
#else
# define LOAD_FUTEX_WAIT(reg,tmp) \
stc gbr, tmp ; \
mov.w 99f, reg ; \
add reg, tmp ; \
bra 98f ; \
mov.l @tmp, reg ; \
99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \
98:
# define LOAD_FUTEX_WAKE(reg,tmp) \
stc gbr, tmp ; \
mov.w 99f, reg ; \
add reg, tmp ; \
mov.l @tmp, reg ; \
bra 98f ; \
mov #FUTEX_WAKE, tmp ; \
99: .word PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \
98: or tmp, reg
#endif
#include "lowlevellock.S"
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