mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-03 02:11:08 +00:00
3fc2f6c8cb
2002-04-05 Ulrich Drepper <drepper@redhat.com> * timezone/zic.c: Update from tzcode2002c. * timezone/asia: Update from tzdata2002c. * timezone/backward: Likewise. * timezone/europe: Likewise. * timezone/northamerica: Likewise. * timezone/northamerica: Likewise. * timezone/northamerica: Likewise. * timezone/southamerica: Likewise. * timezone/zone.tab: Likewise.
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/* Machine-dependent pthreads configuration and inline functions.
|
|
hppa version.
|
|
Copyright (C) 2000, 2002 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Richard Henderson <rth@tamu.edu>.
|
|
|
|
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,
|
|
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 <bits/initspin.h>
|
|
|
|
#ifndef PT_EI
|
|
# define PT_EI extern inline
|
|
#endif
|
|
|
|
extern long int testandset (int *spinlock);
|
|
extern int __compare_and_swap (long int *p, long int oldval, long int newval);
|
|
|
|
/* 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
|
|
register char * stack_pointer __asm__ ("%r30");
|
|
|
|
|
|
/* The hppa only has one atomic read and modify memory operation,
|
|
load and clear, so hppa spinlocks must use zero to signify that
|
|
someone is holding the lock. */
|
|
|
|
#define xstr(s) str(s)
|
|
#define str(s) #s
|
|
/* Spinlock implementation; required. */
|
|
PT_EI long int
|
|
testandset (int *spinlock)
|
|
{
|
|
int ret;
|
|
|
|
__asm__ __volatile__(
|
|
"ldcw 0(%2),%0"
|
|
: "=r"(ret), "=m"(*spinlock)
|
|
: "r"(spinlock));
|
|
|
|
return ret == 0;
|
|
}
|
|
#undef str
|
|
#undef xstr
|
|
|
|
#endif /* pt-machine.h */
|