1 files changed, 75 insertions, 0 deletions
diff --git a/src/chdebug.c b/src/chdebug.c
new file mode 100644
index 000000000..d08f91fd1
--- /dev/null
+++ b/src/chdebug.c
@@ -0,0 +1,75 @@
+/*
+    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/>.
+*/
+
+#include <ch.h>
+
+#ifdef CH_USE_DEBUG
+
+TraceBuffer dbgtb;
+char *dbglastmsg;
+
+/**
+ * Debug subsystem initialization.
+ */
+void chDbgInit(void) {
+
+  dbgtb.tb_size = TRACE_BUFFER_SIZE;
+  dbgtb.tb_ptr = &dbgtb.tb_buffer[0];
+}
+
+/**
+ * Inserts in the circular debug trace buffer a context switch record.
+ * @param otp the thread being switched out
+ * @param ntp the thread to be resumed
+ */
+void chDbgTrace(Thread *otp, Thread *ntp) {
+
+  dbgtb.tb_ptr->cse_slpdata = otp->p_common;
+#ifdef CH_USE_SYSTEMTIME
+  dbgtb.tb_ptr->cse_time = chSysGetTime();
+#else
+  dbgtb.tb_ptr->cse_time = 0;
+#endif
+  dbgtb.tb_ptr->cse_state = otp->p_state;
+  dbgtb.tb_ptr->cse_tid = ntp->p_tid;
+  if (++dbgtb.tb_ptr >= &dbgtb.tb_buffer[TRACE_BUFFER_SIZE])
+    dbgtb.tb_ptr = &dbgtb.tb_buffer[0];
+}
+
+/**
+ * Prints a message on the console/debugger. The latest message pointer
+ * is retained.
+ */
+void chDbgPuts(char *msg) {
+
+  dbglastmsg = msg;
+  chSysPuts(msg);
+}
+
+/**
+ * Prints a panic message on the console/debugger and then halts the system.
+ */
+void chDbgPanic(char *msg) {
+
+  chSysPuts("PANIC: ");
+  chDbgPuts(msg);
+  chSysHalt();
+}
+
+#endif /* CH_USE_DEBUG */