1 files changed, 67 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h b/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
new file mode 100644
index 0000000000..5424860786
--- /dev/null
+++ b/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
@@ -0,0 +1,67 @@
+/* Machine-dependent pthreads configuration and inline functions.
+   Sparc v9 version.
+   Copyright (C) 1997 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.  */
+
+
+/* Spinlock implementation; required.  */
+extern inline int
+testandset (int *spinlock)
+{
+  int ret;
+
+  __asm__ __volatile__("ldstub %1,%0"
+	: "=r"(ret), "=m"(*spinlock) : "m"(*spinlock));
+
+  return ret;
+}
+
+
+/* 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");
+
+
+/* Registers %g6 and %g7 are reserved by the ABI for "system use".  It
+   happens that Solaris uses %g6 for the thread pointer -- we do the same.  */
+struct _pthread_descr_struct;
+register struct _pthread_descr_struct *__thread_self __asm__("%g6");
+
+/* Return the thread descriptor for the current thread.  */
+#define THREAD_SELF  __thread_self
+
+/* Initialize the thread-unique value.  */
+#define INIT_THREAD_SELF(descr)  (__thread_self = (descr))
+
+
+/* Compare-and-swap for semaphores. */
+
+#define HAS_COMPARE_AND_SWAP
+extern inline int
+__compare_and_swap (long int *p, long int oldval, long int newval)
+{
+  long int readval;
+
+  __asm__ __volatile__ ("cas %1, %2, %0"
+			: "=r"(readval), "=m"(*p)
+			: "r"(oldval), "m"(*p), "0"(newval));
+
+  return readval == newval;
+}