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| -rw-r--r-- | libpthread/linuxthreads.old/sysdeps/or1k/pt-machine.h | 55 | 
1 files changed, 55 insertions, 0 deletions
diff --git a/libpthread/linuxthreads.old/sysdeps/or1k/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/or1k/pt-machine.h new file mode 100644 index 000000000..c6c8ee470 --- /dev/null +++ b/libpthread/linuxthreads.old/sysdeps/or1k/pt-machine.h @@ -0,0 +1,55 @@ +/* Machine-dependent pthreads configuration and inline functions. +   OpenRISC version. +   Copyright (C) 2001, 2002, 2003 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; see the file COPYING.LIB.  If not, +   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +   Boston, MA 02111-1307, USA.  */ + +#ifndef _PT_MACHINE_H +#define _PT_MACHINE_H   1 + +#include <features.h> +#include <sys/syscall.h> + +#ifndef PT_EI +# define PT_EI __extern_always_inline +#endif + +PT_EI long int testandset(int*); + +#define OR1K_ATOMIC_XCHG 1 + +PT_EI long int +testandset (int *spinlock) +{ +	int err; +	int oldvalue = 1; + +	err = INLINE_SYSCALL(or1k_atomic, 3, OR1K_ATOMIC_XCHG, spinlock, &oldvalue); + +	return (oldvalue); +} + +/* Get some notion of the current stack.  Need not be exactly the top +   of the stack, just something somewhere in the current frame.  */ +#define CURRENT_STACK_FRAME  stack_pointer() +static inline char *stack_pointer(void) +{ +	unsigned long ret; +	__asm__ __volatile__ ("l.ori %0, r1, 0" : "=r" (ret)); +	return (char *)ret; +} +#endif /* pt-machine.h */  | 
