1 files changed, 88 insertions, 0 deletions
diff --git a/nsprpub/pr/src/md/unix/riscos.c b/nsprpub/pr/src/md/unix/riscos.c
new file mode 100644
index 0000000000..a041188753
--- /dev/null
+++ b/nsprpub/pr/src/md/unix/riscos.c
@@ -0,0 +1,88 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "primpl.h"
+
+void _MD_EarlyInit(void)
+{
+}
+
+PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np)
+{
+#ifndef _PR_PTHREADS
+    if (isCurrent) {
+        (void) setjmp(CONTEXT(t));
+    }
+    *np = sizeof(CONTEXT(t)) / sizeof(PRWord);
+    return (PRWord *) CONTEXT(t);
+#else
+    *np = 0;
+    return NULL;
+#endif
+}
+
+#ifdef _PR_PTHREADS
+
+void _MD_CleanupBeforeExit(void)
+{
+}
+
+#else /* ! _PR_PTHREADS */
+
+void
+_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri)
+{
+    return;
+}
+
+PRStatus
+_MD_InitializeThread(PRThread *thread)
+{
+    /*
+     * set the pointers to the stack-pointer and frame-pointer words in the
+     * context structure; this is for debugging use.
+     */
+    thread->md.sp = _MD_GET_SP_PTR(thread);
+    thread->md.fp = _MD_GET_FP_PTR(thread);
+    return PR_SUCCESS;
+}
+
+PRStatus
+_MD_WAIT(PRThread *thread, PRIntervalTime ticks)
+{
+    PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE));
+    _PR_MD_SWITCH_CONTEXT(thread);
+    return PR_SUCCESS;
+}
+
+PRStatus
+_MD_WAKEUP_WAITER(PRThread *thread)
+{
+    if (thread) {
+        PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE));
+    }
+    return PR_SUCCESS;
+}
+
+/* These functions should not be called for RISC OS */
+void
+_MD_YIELD(void)
+{
+    PR_NOT_REACHED("_MD_YIELD should not be called for RISC OS.");
+}
+
+PRStatus
+_MD_CREATE_THREAD(
+    PRThread *thread,
+    void (*start) (void *),
+    PRThreadPriority priority,
+    PRThreadScope scope,
+    PRThreadState state,
+    PRUint32 stackSize)
+{
+    PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for RISC OS.");
+    return PR_FAILURE;
+}
+#endif /* ! _PR_PTHREADS */