summary refs log tree commit diff
path: root/linuxthreads/sysdeps/powerpc/powerpc32/pt-machine.h
diff options
context:
space:
mode:
Diffstat (limited to 'linuxthreads/sysdeps/powerpc/powerpc32/pt-machine.h')
-rw-r--r--linuxthreads/sysdeps/powerpc/powerpc32/pt-machine.h120
1 files changed, 0 insertions, 120 deletions
diff --git a/linuxthreads/sysdeps/powerpc/powerpc32/pt-machine.h b/linuxthreads/sysdeps/powerpc/powerpc32/pt-machine.h
deleted file mode 100644
index 8363d16d08..0000000000
--- a/linuxthreads/sysdeps/powerpc/powerpc32/pt-machine.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
-   powerpc version.
-   Copyright (C) 1996, 1997, 1998, 2000, 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.  */
-
-/* These routines are from Appendix G of the 'PowerPC 601 RISC Microprocessor
-   User's Manual', by IBM and Motorola.  */
-
-#ifndef _PT_MACHINE_H
-#define _PT_MACHINE_H   1
-
-#ifndef PT_EI
-# define PT_EI extern inline __attribute__ ((always_inline))
-#endif
-
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
-
-/* For multiprocessor systems, we want to ensure all memory accesses
-   are completed before we reset a lock.  On other systems, we still
-   need to make sure that the compiler has flushed everything to memory.  */
-#define MEMORY_BARRIER() __asm__ __volatile__ ("sync" : : : "memory")
-
-/* We want the OS to assign stack addresses.  */
-#define FLOATING_STACKS 1
-
-/* Maximum size of the stack if the rlimit is unlimited.  */
-#define ARCH_STACK_MAX_SIZE     8*1024*1024
-
-/* 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__ ("r1");
-
-/* Register r2 (tp) is reserved by the ABI as "thread pointer". */
-struct _pthread_descr_struct;
-register struct _pthread_descr_struct *__thread_self __asm__("r2");
-
-/* Return the thread descriptor for the current thread.  */
-#define THREAD_SELF  __thread_self
-
-/* Initialize the thread-unique value.  */
-#define INIT_THREAD_SELF(descr, nr)  (__thread_self = (descr))
-
-/* Access to data in the thread descriptor is easy.  */
-#define THREAD_GETMEM(descr, member) \
-  ((void) (descr), THREAD_SELF->member)
-#define THREAD_GETMEM_NC(descr, member) \
-  ((void) (descr), THREAD_SELF->member)
-#define THREAD_SETMEM(descr, member, value) \
-  ((void) (descr), THREAD_SELF->member = (value))
-#define THREAD_SETMEM_NC(descr, member, value) \
-  ((void) (descr), THREAD_SELF->member = (value))
-
-/* Compare-and-swap for semaphores. */
-/* note that test-and-set(x) is the same as !compare-and-swap(x, 0, 1) */
-
-#define HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS
-#define IMPLEMENT_TAS_WITH_CAS
-
-PT_EI int
-__compare_and_swap (long int *p, long int oldval, long int newval)
-{
-  int ret;
-
-  __asm__ __volatile__ (
-	   "0:    lwarx %0,0,%1 ;"
-	   "      xor. %0,%3,%0;"
-	   "      bne 1f;"
-	   "      stwcx. %2,0,%1;"
-	   "      bne- 0b;"
-	   "1:    "
-	: "=&r"(ret)
-	: "r"(p), "r"(newval), "r"(oldval)
-	: "cr0", "memory");
-  /* This version of __compare_and_swap is to be used when acquiring
-     a lock, so we don't need to worry about whether other memory
-     operations have completed, but we do need to be sure that any loads
-     after this point really occur after we have acquired the lock.  */
-  __asm__ __volatile__ ("isync" : : : "memory");
-  return ret == 0;
-}
-
-PT_EI int
-__compare_and_swap_with_release_semantics (long int *p,
-					   long int oldval, long int newval)
-{
-  int ret;
-
-  MEMORY_BARRIER ();
-  __asm__ __volatile__ (
-	   "0:    lwarx %0,0,%1 ;"
-	   "      xor. %0,%3,%0;"
-	   "      bne 1f;"
-	   "      stwcx. %2,0,%1;"
-	   "      bne- 0b;"
-	   "1:    "
-	: "=&r"(ret)
-	: "r"(p), "r"(newval), "r"(oldval)
-	: "cr0", "memory");
-  return ret == 0;
-}
-
-#endif /* pt-machine.h */