Signed-off-by: Vineet Gupta <[email protected]>
---
.../linuxthreads.old/sysdeps/arc/pt-machine.h | 48 ++++++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 libpthread/linuxthreads.old/sysdeps/arc/pt-machine.h
diff --git a/libpthread/linuxthreads.old/sysdeps/arc/pt-machine.h
b/libpthread/linuxthreads.old/sysdeps/arc/pt-machine.h
new file mode 100644
index 000000000000..59a490ba1357
--- /dev/null
+++ b/libpthread/linuxthreads.old/sysdeps/arc/pt-machine.h
@@ -0,0 +1,48 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ 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>
+
+#ifndef PT_EI
+# define PT_EI __extern_always_inline /* ARC LOCAL: was: extern inline */
+#endif
+
+extern long int testandset (int *spinlock);
+extern int __compare_and_swap (long int *p, long int oldval, long int newval);
+
+PT_EI long int
+testandset (int *spinlock)
+{
+ register unsigned long int old;
+ int *m = spinlock;
+
+ __asm__ ("ex %0,[%3]" : "=r" (old), "+m" (*m) : "0" (1), "ri" (m));
+ return old;
+
+}
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame.
+ I don't trust register variables, so let's do this the safe way. */
+#define CURRENT_STACK_FRAME \
+({ char *__sp; __asm__ ("mov %0,sp" : "=r" (__sp)); __sp; })
+
+#else
+#error PT_MACHINE already defined
+#endif /* pt-machine.h */
--
1.8.1.2
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