From a0da296615273933725b95d96e4e763dc8ed6c97 Mon Sep 17 00:00:00 2001
From: grehan <grehan@FreeBSD.org>
Date: Tue, 2 Mar 2004 06:25:20 +0000
Subject: libthr powerpc support.

Submitted by:  Suleiman Souhlal <refugee@segfaulted.com>
Tested with: most libpthread tests, Apache 'worker' MDM
---
 lib/libthr/arch/powerpc/Makefile.inc         |  5 +++
 lib/libthr/arch/powerpc/powerpc/_curthread.c | 58 ++++++++++++++++++++++++++++
 2 files changed, 63 insertions(+)
 create mode 100644 lib/libthr/arch/powerpc/Makefile.inc
 create mode 100644 lib/libthr/arch/powerpc/powerpc/_curthread.c

diff --git a/lib/libthr/arch/powerpc/Makefile.inc b/lib/libthr/arch/powerpc/Makefile.inc
new file mode 100644
index 0000000..9f6f72c
--- /dev/null
+++ b/lib/libthr/arch/powerpc/Makefile.inc
@@ -0,0 +1,5 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/sys ${.CURDIR}/arch/${MACHINE_ARCH}/${MACHINE_ARCH}
+
+SRCS+=	_curthread.c
diff --git a/lib/libthr/arch/powerpc/powerpc/_curthread.c b/lib/libthr/arch/powerpc/powerpc/_curthread.c
new file mode 100644
index 0000000..3782e24
--- /dev/null
+++ b/lib/libthr/arch/powerpc/powerpc/_curthread.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2004 Suleiman Souhlal
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <sys/ucontext.h>
+
+#include <pthread.h>
+#include "thr_private.h"
+
+register struct pthread *_curthread __asm("%r2");
+
+struct pthread *
+_get_curthread(void)
+{
+	return (_curthread);
+}
+
+void
+_retire_thread(void *v)
+{
+}
+
+void *
+_set_curthread(ucontext_t *uc, struct pthread *thread, int *err)
+{
+	*err = 0;
+	if (uc != NULL)
+		uc->uc_mcontext.mc_gpr[2] = (uint32_t)thread;
+	else
+		_curthread = thread;
+	return (NULL);
+}
-- 
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