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diff --git a/os/templates/chcore.h b/os/templates/chcore.h
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+/*
+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
+
+    This file is part of ChibiOS/RT.
+
+    ChibiOS/RT is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS/RT 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file src/templates/chcore.h
+ * @brief Port related template macros and structures.
+ * @addtogroup Core
+ * @{
+ */
+
+#ifndef _CHCORE_H_
+#define _CHCORE_H_
+
+/**
+ * Unique macro for the implemented architecture.
+ */
+#define CH_ARCHITECTURE_XXX
+
+/**
+ * Name of the implemented architecture.
+ */
+#define CH_ARCHITECTURE_NAME ""
+
+/**
+ * Base type for stack alignment.
+ * This type is used only for stack alignment reasons thus can be anything from
+ * a char to a double.
+ */
+typedef uint8_t stkalign_t;
+
+/**
+ * @brief Interrupt saved context.
+ * @details This structure represents the stack frame saved during a
+ * preemption-capable interrupt handler.
+ */
+struct extctx {
+};
+
+/**
+ * @brief System saved context.
+ * @details This structure represents the inner stack frame during a context
+ * switching.
+ */
+struct intctx {
+};
+
+/**
+ * @brief Platform dependent part of the @p Thread structure.
+ * @details This structure usually contains just the saved stack pointer
+ * defined as a pointer to a @p intctx structure.
+ */
+struct context {
+  struct intctx *sp;
+};
+
+/**
+ * Platform dependent part of the @p chThdInit() API.
+ * This code usually setup the context switching frame represented by a
+ * @p intctx structure.
+ */
+#define SETUP_CONTEXT(workspace, wsize, pf, arg) {                      \
+}
+
+/**
+ * Stack size for the system idle thread.
+ * This size depends on the idle thread implementation, usually the idle
+ * thread should take no more space than those reserved
+ * by @p INT_REQUIRED_STACK.
+ */
+#ifndef IDLE_THREAD_STACK_SIZE
+#define IDLE_THREAD_STACK_SIZE 0
+#endif
+
+/**
+ * Per-thread stack overhead for interrupts servicing, it is used in the
+ * calculation of the correct working area size.
+ * This value can be zero on those architecture where there is a separate
+ * interrupt stack and the stack space between @p intctx and @p extctx is
+ * known to be zero.
+ */
+#ifndef INT_REQUIRED_STACK
+#define INT_REQUIRED_STACK 0
+#endif
+
+/**
+ * Enforces a correct alignment for a stack area size value.
+ */
+#define STACK_ALIGN(n) ((((n) - 1) | (sizeof(stkalign_t) - 1)) + 1)
+
+/**
+ * Computes the thread working area global size.
+ */
+#define THD_WA_SIZE(n) STACK_ALIGN(sizeof(Thread) +                     \
+                                   sizeof(struct intctx) +              \
+                                   sizeof(struct extctx) +              \
+                                  (n) + (INT_REQUIRED_STACK))
+
+/**
+ * Macro used to allocate a thread working area aligned as both position and
+ * size.
+ */
+#define WORKING_AREA(s, n) stkalign_t s[THD_WA_SIZE(n) / sizeof(stkalign_t)];
+
+/**
+ * IRQ prologue code, inserted at the start of all IRQ handlers enabled to
+ * invoke system APIs.
+ */
+#define PORT_IRQ_PROLOGUE()
+
+/**
+ * IRQ epilogue code, inserted at the end of all IRQ handlers enabled to
+ * invoke system APIs.
+ */
+#define PORT_IRQ_EPILOGUE()
+
+/**
+ * IRQ handler function declaration.
+ * @note @p id can be a function name or a vector number depending on the
+ *       port implementation.
+ */
+#define PORT_IRQ_HANDLER(id) void id(void)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void port_init(void);
+  void port_lock(void);
+  void port_unlock(void);
+  void port_lock_from_isr(void);
+  void port_unlock_from_isr(void);
+  void port_disable(void);
+  void port_suspend(void);
+  void port_enable(void);
+  void port_wait_for_interrupt(void);
+  void port_halt(void);
+  void port_switch(Thread *otp, Thread *ntp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CHCORE_H_ */
+
+/** @} */