summaryrefslogtreecommitdiff
path: root/libpthread/linuxthreads.old/sysdeps/sparc/sparc64
diff options
context:
space:
mode:
Diffstat (limited to 'libpthread/linuxthreads.old/sysdeps/sparc/sparc64')
-rw-r--r--libpthread/linuxthreads.old/sysdeps/sparc/sparc64/pt-machine.h104
1 files changed, 0 insertions, 104 deletions
diff --git a/libpthread/linuxthreads.old/sysdeps/sparc/sparc64/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/sparc/sparc64/pt-machine.h
deleted file mode 100644
index e3c73d967..000000000
--- a/libpthread/linuxthreads.old/sysdeps/sparc/sparc64/pt-machine.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/* Machine-dependent pthreads configuration and inline functions.
- Sparc v9 version.
- Copyright (C) 1997-2002, 2003 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 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, see <http://www.gnu.org/licenses/>. */
-
-#ifndef _PT_MACHINE_H
-#define _PT_MACHINE_H 1
-
-#ifndef PT_EI
-# define PT_EI __extern_always_inline
-#endif
-
-extern long int testandset (int *spinlock);
-extern int __compare_and_swap (long int *p, long int oldval, long int newval);
-
-/* Spinlock implementation; required. */
-PT_EI long int
-testandset (int *spinlock)
-{
- int ret;
-
- __asm__ __volatile__("ldstub %1,%0"
- : "=r" (ret), "=m" (*spinlock) : "m" (*spinlock));
-
- return ret;
-}
-
-
-/* Memory barrier; default is to do nothing */
-#define MEMORY_BARRIER() \
- __asm__ __volatile__("membar #LoadLoad | #LoadStore | #StoreLoad | #StoreStore" : : : "memory")
-/* Read barrier. */
-#define READ_MEMORY_BARRIER() \
- __asm__ __volatile__("membar #LoadLoad | #LoadStore" : : : "memory")
-/* Write barrier. */
-#define WRITE_MEMORY_BARRIER() \
- __asm__ __volatile__("membar #StoreLoad | #StoreStore" : : : "memory")
-
-
-/* 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 + (2 * 128))
-register char *stack_pointer __asm__ ("%sp");
-
-
-/* Registers %g6 and %g7 are reserved by the ABI for "system use". The
- TLS ABI specifies %g7 as the thread pointer. */
-struct _pthread_descr_struct;
-register struct _pthread_descr_struct *__thread_self __asm__ ("%g7");
-
-/* 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))
-
-
-/* Compare-and-swap for semaphores. */
-
-#define HAS_COMPARE_AND_SWAP
-PT_EI int
-__compare_and_swap (long int *p, long int oldval, long int newval)
-{
- long int readval;
-
- __asm__ __volatile__ ("casx [%4], %2, %0"
- : "=r"(readval), "=m"(*p)
- : "r"(oldval), "m"(*p), "r"(p), "0"(newval));
- MEMORY_BARRIER();
- return readval == oldval;
-}
-
-/* Access to data in the thread descriptor is easy. */
-#define THREAD_GETMEM(descr, member) \
- ((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_GETMEM_NC(descr, member) \
- ((void) sizeof (descr), THREAD_SELF->member)
-#define THREAD_SETMEM(descr, member, value) \
- ((void) sizeof (descr), THREAD_SELF->member = (value))
-#define THREAD_SETMEM_NC(descr, member, value) \
- ((void) sizeof (descr), THREAD_SELF->member = (value))
-
-/* 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 32*1024*1024
-
-#endif /* pt-machine.h */