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-rw-r--r--libpthread/linuxthreads/sysdeps/or1k/pt-machine.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/sysdeps/or1k/pt-machine.h b/libpthread/linuxthreads/sysdeps/or1k/pt-machine.h
new file mode 100644
index 000000000..c6c8ee470
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/or1k/pt-machine.h
@@ -0,0 +1,55 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ OpenRISC version.
+ Copyright (C) 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. */
+
+#ifndef _PT_MACHINE_H
+#define _PT_MACHINE_H 1
+
+#include <features.h>
+#include <sys/syscall.h>
+
+#ifndef PT_EI
+# define PT_EI __extern_always_inline
+#endif
+
+PT_EI long int testandset(int*);
+
+#define OR1K_ATOMIC_XCHG 1
+
+PT_EI long int
+testandset (int *spinlock)
+{
+ int err;
+ int oldvalue = 1;
+
+ err = INLINE_SYSCALL(or1k_atomic, 3, OR1K_ATOMIC_XCHG, spinlock, &oldvalue);
+
+ return (oldvalue);
+}
+
+/* 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()
+static inline char *stack_pointer(void)
+{
+ unsigned long ret;
+ __asm__ __volatile__ ("l.ori %0, r1, 0" : "=r" (ret));
+ return (char *)ret;
+}
+#endif /* pt-machine.h */