From: richardbarry <richardbarry@1d2547de-c912-0410-9cb9-b8ca96c0e9e2>
Date: Thu, 9 May 2013 09:52:34 +0000 (+0000)
Subject: Update flop.c and FreeRTOS.h to include a macro (and a default null implementation... 
X-Git-Tag: V7.5.0~103
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=2e4f977689e376c3dfcc17f59c5bc6767de7f7cd;p=freertos

Update flop.c and FreeRTOS.h to include a macro (and a default null implementation of the macro) that enables the flop tasks to register their need for a floating point context with the kernel.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@1887 1d2547de-c912-0410-9cb9-b8ca96c0e9e2
---

diff --git a/FreeRTOS/Demo/Common/Minimal/flop.c b/FreeRTOS/Demo/Common/Minimal/flop.c
index dc9d25b50..0d3673da5 100644
--- a/FreeRTOS/Demo/Common/Minimal/flop.c
+++ b/FreeRTOS/Demo/Common/Minimal/flop.c
@@ -132,6 +132,11 @@ volatile unsigned short *pusTaskCheckVariable;
 volatile portDOUBLE dAnswer;
 short sError = pdFALSE;
 
+	/* Some ports require that tasks that use a hardware floating point unit
+	tell the kernel that they require a floating point context before any
+	floating point instructions are executed. */
+	portTASK_USES_FLOATING_POINT();
+
 	d1 = 123.4567;
 	d2 = 2345.6789;
 	d3 = -918.222;
@@ -184,6 +189,11 @@ volatile unsigned short *pusTaskCheckVariable;
 volatile portDOUBLE dAnswer;
 short sError = pdFALSE;
 
+	/* Some ports require that tasks that use a hardware floating point unit
+	tell the kernel that they require a floating point context before any
+	floating point instructions are executed. */
+	portTASK_USES_FLOATING_POINT();
+
 	d1 = -389.38;
 	d2 = 32498.2;
 	d3 = -2.0001;
@@ -238,6 +248,11 @@ const size_t xArraySize = 10;
 size_t xPosition;
 short sError = pdFALSE;
 
+	/* Some ports require that tasks that use a hardware floating point unit
+	tell the kernel that they require a floating point context before any
+	floating point instructions are executed. */
+	portTASK_USES_FLOATING_POINT();
+
 	/* The variable this task increments to show it is still running is passed in 
 	as the parameter. */
 	pusTaskCheckVariable = ( unsigned short * ) pvParameters;
@@ -295,6 +310,11 @@ const size_t xArraySize = 10;
 size_t xPosition;
 short sError = pdFALSE;
 
+	/* Some ports require that tasks that use a hardware floating point unit
+	tell the kernel that they require a floating point context before any
+	floating point instructions are executed. */
+	portTASK_USES_FLOATING_POINT();
+
 	/* The variable this task increments to show it is still running is passed in 
 	as the parameter. */
 	pusTaskCheckVariable = ( unsigned short * ) pvParameters;
diff --git a/FreeRTOS/Source/include/FreeRTOS.h b/FreeRTOS/Source/include/FreeRTOS.h
index f29380f6f..eb3b2a50e 100644
--- a/FreeRTOS/Source/include/FreeRTOS.h
+++ b/FreeRTOS/Source/include/FreeRTOS.h
@@ -568,6 +568,10 @@ typedef portBASE_TYPE (*pdTASK_HOOK_CODE)( void * );
 	#define configUSE_QUEUE_SETS 0
 #endif
 
+#ifndef portTASK_USES_FLOATING_POINT
+	#define portTASK_USES_FLOATING_POINT()
+#endif
+
 /* For backward compatability. */
 #define eTaskStateGet eTaskGetState