Added portMEMORY_BARRIER() implemented as __asm volatile( "" ::: "memory" ) into ARM Cortex-M33 ports to assist with link time optimisation.

6 years ago · 27ca5c8341
parent 84377442fc
commit 27ca5c8341
3 changed files with 6 additions and 0 deletions
--- a/FreeRTOS/Source/portable/ARMv8M/non_secure/portmacro.h
+++ b/FreeRTOS/Source/portable/ARMv8M/non_secure/portmacro.h
@ -289,6 +289,8 @@ typedef struct MPU_SETTINGS
 #endif /* configENABLE_MPU */
 /*-----------------------------------------------------------*/

+#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
+
 #ifdef __cplusplus
 }
 #endif
--- a/FreeRTOS/Source/portable/GCC/ARM_CM33/non_secure/portmacro.h
+++ b/FreeRTOS/Source/portable/GCC/ARM_CM33/non_secure/portmacro.h
@ -289,6 +289,8 @@ typedef struct MPU_SETTINGS
 #endif /* configENABLE_MPU */
 /*-----------------------------------------------------------*/

+#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
+
 #ifdef __cplusplus
 }
 #endif
--- a/FreeRTOS/Source/portable/GCC/ARM_CM33_NTZ/non_secure/portmacro.h
+++ b/FreeRTOS/Source/portable/GCC/ARM_CM33_NTZ/non_secure/portmacro.h
@ -289,6 +289,8 @@ typedef struct MPU_SETTINGS
 #endif /* configENABLE_MPU */
 /*-----------------------------------------------------------*/

+#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
+
 #ifdef __cplusplus
 }
 #endif