1 files changed, 105 insertions, 0 deletions
diff --git a/os/kernel/include/chstats.h b/os/kernel/include/chstats.h
new file mode 100644
index 000000000..a94a84814
--- /dev/null
+++ b/os/kernel/include/chstats.h
@@ -0,0 +1,105 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+                 2011,2012,2013 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    chstats.h
+ * @brief   Statistics module macros and structures.
+ *
+ * @addtogroup statistics
+ * @{
+ */
+
+#ifndef _CHSTATS_H_
+#define _CHSTATS_H_
+
+#if CH_DBG_STATISTICS || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Module constants.                                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Type of a kernel statistics structure.
+ */
+typedef struct {
+  ucnt_t                nirq;       /**< @brief IRQ number.
+                                         @note  Fast Interrupts are not
+                                                accounted for.              */
+  ucnt_t                nctxswc;    /**< @brief Context switch number.      */
+  time_measurement_t    critical;   /**< @brief Critical zones measurement. */
+  time_measurement_t    isr;        /**< @brief ISR measurement.            */
+} kernel_stats_t;
+
+/*===========================================================================*/
+/* Module macros.                                                            */
+/*===========================================================================*/
+
+/**
+ * @brief   Increases the IRQ counter.
+ */
+#define _stats_increase_irq() kernel_stats.nirq++
+
+/**
+ * @brief   Increases the context switch counter.
+ */
+#define _stats_increase_ctxswc() kernel_stats.nctxswc++
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#if !defined(__DOXYGEN__)
+extern kernel_stats_t kernel_stats;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+/*===========================================================================*/
+/* Module inline functions.                                                  */
+/*===========================================================================*/
+
+#else /* !CH_DBG_STATISTICS */
+
+/* Stub functions for when the statistics module is disabled. */
+#define _stats_increase_irq()
+#define _stats_increase_ctxswc()
+
+#endif /* !CH_DBG_STATISTICS */
+
+#endif /* _CHSTATS_H_ */
+
+/** @} */