1 files changed, 74 insertions, 0 deletions
diff --git a/os/kernel/ports/ARMCMx/compilers/GCC/chcoreasm.s b/os/kernel/ports/ARMCMx/compilers/GCC/chcoreasm.s
index e69de29bb..924a0b6d0 100644
--- a/os/kernel/ports/ARMCMx/compilers/GCC/chcoreasm.s
+++ b/os/kernel/ports/ARMCMx/compilers/GCC/chcoreasm.s
@@ -0,0 +1,74 @@
+/*
+    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    ARM/chcoreasm.s
+ * @brief   ARM7/9 architecture port low level code.
+ *
+ * @addtogroup ARM_CORE
+ * @{
+ */
+
+#include "chconf.h"
+#include "chcore.h"
+
+#if !defined(FALSE) || defined(__DOXYGEN__)
+#define FALSE                   0
+#endif
+
+#if !defined(TRUE) || defined(__DOXYGEN__)
+#define TRUE                    1
+#endif
+
+#if !defined(__DOXYGEN__)
+
+                    .syntax unified
+                    .cpu cortex-m4
+                    .fpu softvfp
+
+                    .thumb
+                    .text
+
+/*
+ * Thread trampoline code.
+ *
+ * Threads execution starts here, the code leaves the system critical zone
+ * and then jumps into the thread function passed in register R4. The
+ * register R5 contains the thread parameter. The function chThdExit() is
+ * called on thread function return.
+ */
+                    .thumb_func
+                    .globl _port_thread_start
+_port_thread_start:
+#if CH_DBG_SYSTEM_STATE_CHECK
+                    bl      dbg_check_unlock
+#endif
+#if CH_DBG_STATISTICS
+                    bl      _stats_stop_measure_crit_thd
+#endif
+                    movs    r3, #0
+                    msr     BASEPRI, r3
+                    mov     r0, r5
+                    blx     r4
+                    bl      chThdExit
+
+#endif /* !defined(__DOXYGEN__) */
+
+/** @} */