diff options
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/frv')
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/frv/pt-machine.h | 56 |
1 files changed, 38 insertions, 18 deletions
diff --git a/libpthread/linuxthreads/sysdeps/frv/pt-machine.h b/libpthread/linuxthreads/sysdeps/frv/pt-machine.h index 067928062..64df5ffdb 100644 --- a/libpthread/linuxthreads/sysdeps/frv/pt-machine.h +++ b/libpthread/linuxthreads/sysdeps/frv/pt-machine.h @@ -1,6 +1,6 @@ /* Machine-dependent pthreads configuration and inline functions. - ARM version. - Copyright (C) 1997, 1998, 2000, 2002, 2003 Free Software Foundation, Inc. + FR-V version. + Copyright (C) 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Alexandre Oliva <aoliva@redhat.com> @@ -15,34 +15,54 @@ 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. */ + 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 +#ifndef __ASSEMBLER__ + #ifndef PT_EI -# define PT_EI extern inline +# define PT_EI extern inline __attribute__ ((always_inline)) #endif -/* 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 __builtin_frame_address (0) - - -extern long int testandset (int *spinlock); - /* Spinlock implementation; required. */ PT_EI long int testandset (int *spinlock) { - register long int ret = 1; + int i = 1; + asm ("swap%I0 %M0, %1" : "+m"(*(volatile int *)spinlock), "+r"(i)); + return i; +} - __asm__ __volatile__("swap%I1\t%M1,%0" - : "+r"(ret), "+m"(*spinlock)); +/* We want the OS to assign stack addresses. */ +#define FLOATING_STACKS 1 - return ret; -} +/* This symbol is defined by the ABI as the stack size requested by + the main program. */ +extern char __stacksize; +#define ARCH_STACK_MAX_SIZE ((unsigned long)&__stacksize) + +/* Memory barrier; default is to do nothing */ +#define MEMORY_BARRIER() __asm__ __volatile__("membar" : : : "memory") +/* Write barrier. */ +#define WRITE_MEMORY_BARRIER() __asm__ __volatile__("membar" : : : "memory") + +/* Return the thread descriptor for the current thread. */ +register struct _pthread_descr_struct *THREAD_SELF asm ("gr29"); +#define THREAD_SELF THREAD_SELF + +/* Initialize the thread-unique value. */ +#define INIT_THREAD_SELF(descr, nr) \ + (THREAD_SELF = descr) + +/* 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__ ("sp"); + +#endif #endif /* pt-machine.h */ |