1 files changed, 91 insertions, 0 deletions
diff --git a/nuttx/arch/rgmp/src/arm/arch_nuttx.c b/nuttx/arch/rgmp/src/arm/arch_nuttx.c
new file mode 100644
index 000000000..cb946bfd1
--- /dev/null
+++ b/nuttx/arch/rgmp/src/arm/arch_nuttx.c
@@ -0,0 +1,91 @@
+/****************************************************************************
+ * arch/rgmp/src/arm/arch_nuttx.c
+ *
+ *   Copyright (C) 2011 Yu Qiang. All rights reserved.
+ *   Author: Yu Qiang <yuq825@gmail.com>
+ *
+ * This file is a part of NuttX:
+ *
+ *   Copyright (C) 2011 Gregory Nutt. 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. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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
+ * COPYRIGHT OWNER OR CONTRIBUTORS 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 <rgmp/mmu.h>
+#include <rgmp/string.h>
+
+#include <arch/arch.h>
+#include <nuttx/sched.h>
+#include <os_internal.h>
+
+
+void nuttx_arch_init(void)
+{
+    
+}
+
+void nuttx_arch_exit(void)
+{
+
+}
+
+void up_initial_state(_TCB *tcb)
+{
+    struct Trapframe *tf;
+
+    if (tcb->pid != 0) {
+	tf = (struct Trapframe *)tcb->adj_stack_ptr-1;
+	memset(tf, 0, sizeof(struct Trapframe));
+	tf->tf_cpsr = SVC_MOD;
+	tf->tf_pc = (uint32_t)tcb->start;
+	tcb->xcp.tf = tf;
+    }
+}
+
+void push_xcptcontext(struct xcptcontext *xcp)
+{
+    xcp->save_eip = xcp->tf->tf_pc;
+    xcp->save_eflags = xcp->tf->tf_cpsr;
+
+    // set  interrupts disabled
+    xcp->tf->tf_pc = (uint32_t)up_sigentry;
+    xcp->tf->tf_cpsr |= CPSR_IF;
+}
+
+void pop_xcptcontext(struct xcptcontext *xcp)
+{
+    xcp->tf->tf_pc = xcp->save_eip;
+    xcp->tf->tf_cpsr = xcp->save_eflags;
+}
+
+void raise(void)
+{
+
+}
+