Add S/W interrupt 0 handlertrunk

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@3627 7fd9a85b-ad96-42d3-883c-3090e2eb8679

1 files changed, 4 insertions, 4 deletions

diff --git a/nuttx/arch/arm/src/cortexm3/up_svcall.c b/nuttx/arch/arm/src/cortexm3/up_svcall.c
index f7e55a98b2..2ec1228b9e 100644
--- a/nuttx/arch/arm/src/cortexm3/up_svcall.c
+++ b/nuttx/arch/arm/src/cortexm3/up_svcall.c
@@ -80,7 +80,7 @@
  */
 
 #undef DEBUG_SVCALL         /* Define to debug SVCall */
-#ifdef DEBUG_HARDFAULTS
+#ifdef DEBUG_SVCALL
 # define svcdbg(format, arg...) slldbg(format, ##arg)
 #else
 # define svcdbg(x...)
@@ -99,10 +99,10 @@
  ****************************************************************************/
 
 /****************************************************************************
- * Name: up_svcall
+ * Name: dispatch_syscall
  *
  * Description:
- *   This is SVCall exception handler that performs context switching
+ *   Dispatch a system call to the appropriate handling logic.
  *
  ****************************************************************************/
 
@@ -308,7 +308,7 @@ int up_svcall(int irq, FAR void *context)
        *   R2 = restoreregs
        *
        * In this case, we do both: We save the context registers to the save
-       * register area reference by the saved contents of R1 nad then set
+       * register area reference by the saved contents of R1 and then set
        * current_regs to to the save register area referenced by the saved
        * contents of R2.
        */