Update the GCC Cortex-A9 port to introduce a version of the IRQ handler that saves the FPU registers.

git-svn-id: http://svn.code.sf.net/p/freertos/code/trunk@2447 1d2547de-c912-0410-9cb9-b8ca96c0e9e2

1 files changed, 9 insertions, 2 deletions

diff --git a/FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/FreeRTOS_tick_config.c b/FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/FreeRTOS_tick_config.c
index 24ed53b18..0b2507acc 100644
--- a/FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/FreeRTOS_tick_config.c
+++ b/FreeRTOS/Demo/CORTEX_A9_Zynq_ZC702/RTOSDemo/src/FreeRTOS_tick_config.c
@@ -147,7 +147,14 @@ void vClearTickInterrupt( void )
 }

 /*-----------------------------------------------------------*/

 

-void vApplicationIRQHandler( uint32_t ulICCIAR )

+/* This is the callback function which is called by the FreeRTOS Cortex-A port

+layer in response to an interrupt.  If the function is called

+vApplicationFPUSafeIRQHandler() then it is called after the floating point

+registers have been saved.  If the function is called vApplicationIRQHandler()

+then it will be called without first having saved the FPU registers.  See

+http://www.freertos.org/Using-FreeRTOS-on-Cortex-A-Embedded-Processors.html for

+more information */

+void vApplicationFPUSafeIRQHandler( uint32_t ulICCIAR )

 {

 extern const XScuGic_Config XScuGic_ConfigTable[];

 static const XScuGic_VectorTableEntry *pxVectorTable = XScuGic_ConfigTable[ XPAR_SCUGIC_SINGLE_DEVICE_ID ].HandlerTable;

@@ -155,7 +162,7 @@ uint32_t ulInterruptID;
 const XScuGic_VectorTableEntry *pxVectorEntry;

 

 	/* Re-enable interrupts. */

-    __asm ( "cpsie i" );

+	__asm ( "cpsie i" );

 

 	/* The ID of the interrupt is obtained by bitwise anding the ICCIAR value

 	with 0x3FF. */