From 4bdf358424068f452a4d5a450e6001a03ca4f819 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Wed, 22 Aug 2012 14:23:02 +0000
Subject: [PATCH] Added mem

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4613 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 os/kernel/include/chregistry.h | 17 +++++++++++++
 os/kernel/src/chregistry.c     | 45 ++++++++++++++++++++++++++++++++++
 readme.txt                     |  2 ++
 3 files changed, 64 insertions(+)

diff --git a/os/kernel/include/chregistry.h b/os/kernel/include/chregistry.h
index ad1bdf207..2b1d35795 100644
--- a/os/kernel/include/chregistry.h
+++ b/os/kernel/include/chregistry.h
@@ -30,6 +30,23 @@
 #define _CHREGISTRY_H_
 
 #if CH_USE_REGISTRY || defined(__DOXYGEN__)
+
+/**
+ * @brief   ChibiOS/RT memory signature record.
+ */
+typedef struct {
+  char      ch_identifier[4];       /**< @brief Always set to "CHRT".       */
+  uint8_t   ch_size;                /**< @brief Size of this structure.     */
+  uint8_t   ch_reserved5;           /**< @brief Reserved field.             */
+  uint16_t  ch_version;             /**< @brief Encoded ChibiOS/RT version. */
+  uint8_t   ch_ptrsize;             /**< @brief Size of a pointer.          */
+  uint8_t   ch_options;             /**< @brief Enable options bits mask.   */
+  uint8_t   ch_reserved10;          /**< @brief Reserved field.             */
+  uint8_t   ch_reserved11;          /**< @brief Reserved field.             */
+  ReadyList *ch_rlist;              /**< @brief Pointer to the ready list.  */
+  VTList    *ch_vtlist;             /**< @brief Pointer to the timers list. */
+} chroot_t;
+
 /**
  * @name    Macro Functions
  * @{
diff --git a/os/kernel/src/chregistry.c b/os/kernel/src/chregistry.c
index 52c180a3a..5036a52bc 100644
--- a/os/kernel/src/chregistry.c
+++ b/os/kernel/src/chregistry.c
@@ -50,6 +50,51 @@
 
 #if CH_USE_REGISTRY || defined(__DOXYGEN__)
 
+/* Converting configuration options in bit masks in order to be encoded in
+   the global variable ch_root.*/
+#if CH_DBG_ENABLE_STACK_CHECK
+#define MSK_DBG_ENABLE_STACK_CHECK      1
+#else
+#define MSK_DBG_ENABLE_STACK_CHECK      0
+#endif
+
+#if CH_USE_DYNAMIC
+#define MSK_USE_DYNAMIC                 2
+#else
+#define MSK_USE_DYNAMIC                 0
+#endif
+
+#if CH_TIME_QUANTUM > 0
+#define MSK_TIME_QUANTUM                4
+#else
+#define MSK_TIME_QUANTUM                0
+#endif
+
+#if CH_DBG_THREADS_PROFILING
+#define MSK_DBG_THREADS_PROFILING       8
+#else
+#define MSK_DBG_THREADS_PROFILING       0
+#endif
+
+/**
+ * @brief   OS signature in ROM plus debug-related information.
+ */
+ROMCONST chroot_t ch_root = {
+  "CHRT",
+  (uint8_t)sizeof (chroot_t),
+  (uint8_t)0,
+  (uint16_t)((CH_KERNEL_MAJOR << 11) |
+             (CH_KERNEL_MINOR << 6) |
+             (CH_KERNEL_PATCH) << 0),
+  (uint8_t)sizeof (void *),
+  (uint8_t)(MSK_DBG_THREADS_PROFILING | MSK_TIME_QUANTUM |
+            MSK_USE_DYNAMIC | MSK_DBG_ENABLE_STACK_CHECK),
+  (uint8_t)0,
+  (uint8_t)0,
+  &rlist,
+  &vtlist
+};
+
 /**
  * @brief   Returns the first thread in the system.
  * @details Returns the most ancient thread in the system, usually this is
diff --git a/readme.txt b/readme.txt
index 7106ed375..b1a0eb792 100644
--- a/readme.txt
+++ b/readme.txt
@@ -162,6 +162,8 @@
   3484947)(backported to 2.4.1).
 - FIX: Fixed various minor documentation errors (bug 3484942)(backported
   to 2.4.1).
+- NEW: Added memory signature record to the registry in order to simplify
+  the implementation of ad-hoc debuggers.
 - NEW: Small andjustment in chcore.h files under ./os/ports/GCC required by a
   difference in GCC 4.7.x.
 - NEW: Added another STM32F4-Discovery demo using the on-board MEMS, SPI