1 files changed, 96 insertions, 0 deletions
diff --git a/lib/libthr/arch/powerpc/include/pthread_md.h b/lib/libthr/arch/powerpc/include/pthread_md.h
new file mode 100644
index 0000000..91102b4
--- /dev/null
+++ b/lib/libthr/arch/powerpc/include/pthread_md.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2004 by Peter Grehan. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Machine-dependent thread prototypes/definitions.
+ */
+#ifndef _PTHREAD_MD_H_
+#define	_PTHREAD_MD_H_
+
+#include <stddef.h>
+#include <sys/types.h>
+
+#define	CPU_SPINWAIT
+
+#define	DTV_OFFSET		offsetof(struct tcb, tcb_dtv)
+#ifdef __powerpc64__
+#define	TP_OFFSET		0x7010
+#else
+#define	TP_OFFSET		0x7008
+#endif
+
+/*
+ * Variant I tcb. The structure layout is fixed, don't blindly
+ * change it.
+ * %r2 (32-bit) or %r13 (64-bit) points to end of the structure.
+ */
+struct tcb {
+	void			*tcb_dtv;
+	struct pthread		*tcb_thread;
+};
+
+struct tcb	*_tcb_ctor(struct pthread *, int);
+void		_tcb_dtor(struct tcb *);
+
+static __inline void
+_tcb_set(struct tcb *tcb)
+{
+#ifdef __powerpc64__
+	register uint8_t *_tp __asm__("%r13");
+#else
+	register uint8_t *_tp __asm__("%r2");
+#endif
+
+	__asm __volatile("mr %0,%1" : "=r"(_tp) :
+	    "r"((uint8_t *)tcb + TP_OFFSET));
+}
+
+static __inline struct tcb *
+_tcb_get(void)
+{
+#ifdef __powerpc64__
+	register uint8_t *_tp __asm__("%r13");
+#else
+	register uint8_t *_tp __asm__("%r2");
+#endif
+
+	return ((struct tcb *)(_tp - TP_OFFSET));
+}
+
+extern struct pthread *_thr_initial;
+
+static __inline struct pthread *
+_get_curthread(void)
+{
+	if (_thr_initial)
+		return (_tcb_get()->tcb_thread);
+	return (NULL);
+}
+
+#endif /* _PTHREAD_MD_H_ */