Fix warnings after moving callback prototypes (FreeRTOS#208)

* Recently the prototypes for the application hook functions were
moved out of the kernel .c files and into the .h files.  That
changes results in compile time warnings for projects that provide
hook functions with a slightly different prototype - in particular
where signed char * is used in place of just char * as an older
FreeRTOS coding convention required chars to be explicitly qualified
as signed or unsigned.

This checkin fixes the warnings by ensuring the signature of
implemented hook functions matches the signature of the prototypes.

FreeRTOS/Demo/AVR_ATMega4809_Atmel_Studio/RTOSDemo/main.c

@@ -51,7 +51,7 @@ int main( void )
 #elif ( mainSELECTED_APPLICATION == 2 )
     main_full();
 #endif
-    
+
     return 0;
 }
 
@@ -78,7 +78,7 @@ This is usefull in application development, for debugging.  To use this
 hook, uncomment it, and set configCHECK_FOR_STACK_OVERFLOW to 1 in
 "FreeRTOSConfig.h" header file. */
 
-// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, signed char *pcTaskName )
+// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, char *pcTaskName )
 // {
 //     for( ;; );
 // }

FreeRTOS/Demo/AVR_ATMega4809_IAR/main.c

@@ -43,15 +43,15 @@ extern void init_full( void );
 int main( void )
 {
     prvSetupHardware();
-    
+
 #if ( mainSELECTED_APPLICATION == 0 )
     main_blinky();
 #elif ( mainSELECTED_APPLICATION == 1 )
     main_minimal();
 #elif ( mainSELECTED_APPLICATION == 2 )
     main_full();
 #endif
-    
+
     return 0;
 }
 
@@ -78,7 +78,7 @@ This is usefull in application development, for debugging.  To use this
 hook, uncomment it, and set configCHECK_FOR_STACK_OVERFLOW to 1 in
 "FreeRTOSConfig.h" header file. */
 
-// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, signed char *pcTaskName )
+// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, char *pcTaskName )
 // {
 //     for( ;; );
 // }

FreeRTOS/Demo/AVR_ATMega4809_MPLAB.X/main.c

@@ -51,7 +51,7 @@ int main( void )
 #elif ( mainSELECTED_APPLICATION == 2 )
     main_full();
 #endif
-    
+
     return 0;
 }
 
@@ -78,7 +78,7 @@ This is usefull in application development, for debugging.  To use this
 hook, uncomment it, and set configCHECK_FOR_STACK_OVERFLOW to 1 in
 "FreeRTOSConfig.h" header file. */
 
-// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, signed char *pcTaskName )
+// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, char *pcTaskName )
 // {
 //     for( ;; );
 // }

FreeRTOS/Demo/AVR_ATmega328PB_Xplained_mini_GCC/RTOSDemo/main.c

@@ -59,10 +59,10 @@ int main(void)
 	/* Initializes MCU, drivers and middleware.
 	This is generated from Atmel START project. */
 	atmel_start_init();
-	
+
 	/* Standard register test. */
 	vStartRegTestTasks();
-	
+
 	/* Optionally enable below tests. This port only has 2KB RAM. */
 	vStartIntegerMathTasks( tskIDLE_PRIORITY );
 	vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
@@ -102,15 +102,15 @@ BaseType_t xFirstTimeCheck = pdTRUE;
 		{
 			uxErrorHasOccurred |= ( 0x01U << 2);
 		}
-		
+
 		/* When check task runs before any other tasks, all above checks shall fail.
 		To avoid false alarm, clear errors upon first entry. */
 		if ( xFirstTimeCheck == pdTRUE )
 		{
 			uxErrorHasOccurred = 0;
 			xFirstTimeCheck = pdFALSE;
 		}
-		
+
 		/* Could set break point at below line to verify uxErrorHasOccurred. */
 		vTaskDelay( mainCHECK_PERIOD );
 	}
@@ -126,7 +126,7 @@ static void vBlinkOnboardUserLED( void *pvParameters )
 	for( ;; )
 	{
 		vParTestToggleLED( 0 );
-		
+
 		vTaskDelay( mainBLINK_LED_OK_HALF_PERIOD );
 	}
 
@@ -141,9 +141,9 @@ void vApplicationIdleHook( void )
 
 /*-----------------------------------------------------------*/
 
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
-	/* When stack overflow happens, trap instead of attempting to recover. 
+	/* When stack overflow happens, trap instead of attempting to recover.
 	Read input arguments to learn about the offending task. */
 	for( ;; )
 	{

FreeRTOS/Demo/AVR_Dx_Atmel_Studio/RTOSDemo/main.c

@@ -51,7 +51,7 @@ int main( void )
 #elif ( mainSELECTED_APPLICATION == 2 )
     main_full();
 #endif
-    
+
     return 0;
 }
 
@@ -78,7 +78,7 @@ This is usefull in application development, for debugging.  To use this
 hook, uncomment it, and set configCHECK_FOR_STACK_OVERFLOW to 1 in
 "FreeRTOSConfig.h" header file. */
 
-// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, signed char *pcTaskName )
+// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, char *pcTaskName )
 // {
 //     for( ;; );
 // }

FreeRTOS/Demo/AVR_Dx_IAR/main.c

@@ -43,15 +43,15 @@ extern void init_full( void );
 int main( void )
 {
     prvSetupHardware();
-    
+
 #if ( mainSELECTED_APPLICATION == 0 )
     main_blinky();
 #elif ( mainSELECTED_APPLICATION == 1 )
     main_minimal();
 #elif ( mainSELECTED_APPLICATION == 2 )
     main_full();
 #endif
-    
+
     return 0;
 }
 
@@ -78,7 +78,7 @@ This is usefull in application development, for debugging.  To use this
 hook, uncomment it, and set configCHECK_FOR_STACK_OVERFLOW to 1 in
 "FreeRTOSConfig.h" header file. */
 
-// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, signed char *pcTaskName )
+// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, char *pcTaskName )
 // {
 //     for( ;; );
 // }

FreeRTOS/Demo/AVR_Dx_MPLAB.X/main.c

@@ -78,7 +78,7 @@ This is usefull in application development, for debugging.  To use this
 hook, uncomment it, and set configCHECK_FOR_STACK_OVERFLOW to 1 in
 "FreeRTOSConfig.h" header file. */
 
-// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, signed char *pcTaskName )
+// void vApplicationStackOverflowHook(TaskHandle_t *pxTask, char *pcTaskName )
 // {
 //     for( ;; );
 // }

FreeRTOS/Demo/CORTEX_LM3S6965_GCC_QEMU/.settings/language.settings.xml

@@ -5,7 +5,7 @@
 			<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
 			<provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
 			<provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
-			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="-920242998058162869" id="ilg.gnuarmeclipse.managedbuild.cross.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT ARM Cross GCC Built-in Compiler Settings " parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
+			<provider class="org.eclipse.cdt.managedbuilder.language.settings.providers.GCCBuiltinSpecsDetector" console="false" env-hash="1283716845372686666" id="ilg.gnuarmeclipse.managedbuild.cross.GCCBuiltinSpecsDetector" keep-relative-paths="false" name="CDT ARM Cross GCC Built-in Compiler Settings " parameter="${COMMAND} ${FLAGS} ${cross_toolchain_flags} -E -P -v -dD &quot;${INPUTS}&quot;" prefer-non-shared="true">
 				<language-scope id="org.eclipse.cdt.core.gcc"/>
 				<language-scope id="org.eclipse.cdt.core.g++"/>
 			</provider>

FreeRTOS/Demo/CORTEX_LM3S6965_GCC_QEMU/main.c

@@ -158,7 +158,7 @@ extern void vSetupHighFrequencyTimer( void );
 /*
  * Hook functions that can get called by the kernel.
  */
-void vApplicationStackOverflowHook( TaskHandle_t *pxTask, signed char *pcTaskName );
+void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
 void vApplicationTickHook( void );
 
 /*
@@ -379,8 +379,8 @@ void ( *vOLEDClear )( void ) = NULL;
 }
 /*-----------------------------------------------------------*/
 
-volatile signed char *pcOverflowedTask = NULL; /* Prevent task name being optimised away. */
-void vApplicationStackOverflowHook( TaskHandle_t *pxTask, signed char *pcTaskName )
+volatile char *pcOverflowedTask = NULL; /* Prevent task name being optimised away. */
+void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
 {
 	( void ) pxTask;
 	pcOverflowedTask = pcTaskName;

FreeRTOS/Demo/CORTEX_LM3Sxxxx_IAR_Keil/main.c

@@ -185,7 +185,7 @@ extern void vSetupHighFrequencyTimer( void );
 /*
  * Hook functions that can get called by the kernel.
  */
-void vApplicationStackOverflowHook( TaskHandle_t *pxTask, signed char *pcTaskName );
+void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
 void vApplicationTickHook( void );
 
 static void prvPrintString( const char * pcString );
@@ -453,8 +453,8 @@ void ( *vOLEDClear )( void ) = NULL;
 }
 /*-----------------------------------------------------------*/
 
-volatile signed char *pcOverflowedTask = NULL;
-void vApplicationStackOverflowHook( TaskHandle_t *pxTask, signed char *pcTaskName )
+volatile char *pcOverflowedTask = NULL;
+void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
 {
 	( void ) pxTask;
 	pcOverflowedTask = pcTaskName;

FreeRTOS/Demo/CORTEX_MPU_M23_Nuvoton_NuMaker_PFM_M2351_IAR_GCC/Projects/IAR/NonSecure/main_ns.c

@@ -88,7 +88,7 @@ static void prvCreateTasks( void )
 /*-----------------------------------------------------------*/
 
 /* Stack overflow hook. */
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
 	/* Force an assert. */
 	configASSERT( pcTaskName == 0 );

FreeRTOS/Demo/CORTEX_MPU_M23_Nuvoton_NuMaker_PFM_M2351_IAR_GCC/Projects/Keil/NonSecure/main_ns.c

@@ -131,7 +131,7 @@ static void prvCreateTasks( void )
 /*-----------------------------------------------------------*/
 
 /* Stack overflow hook. */
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
 	/* Force an assert. */
 	configASSERT( pcTaskName == 0 );

FreeRTOS/Demo/CORTEX_MPU_M33F_NXP_LPC55S69_MCUXpresso/Projects/MCUXpresso/NonSecure/main_ns.c

@@ -101,7 +101,7 @@ void SystemInit( void )
 /*-----------------------------------------------------------*/
 
 /* Stack overflow hook. */
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
 	/* Force an assert. */
 	configASSERT( pcTaskName == 0 );

FreeRTOS/Demo/CORTEX_MPU_M33F_Simulator_Keil_GCC/NonSecure/main_ns.c

@@ -126,7 +126,7 @@ static void prvCreateTasks( void )
 /*-----------------------------------------------------------*/
 
 /* Stack overflow hook. */
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
 	/* Force an assert. */
 	configASSERT( pcTaskName == 0 );

FreeRTOS/Demo/ColdFire_MCF52221_CodeWarrior/sources/main.c

@@ -238,7 +238,7 @@ void prvSetupHardware( void )
 }
 /*-----------------------------------------------------------*/
 
-void vApplicationStackOverflowHook( TaskHandle_t *pxTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
 {
 	/* This will get called if a stack overflow is detected during the context
 	switch.  Set configCHECK_FOR_STACK_OVERFLOWS to 2 to also check for stack

FreeRTOS/Demo/ColdFire_MCF52233_Eclipse/RTOSDemo/main.c

@@ -285,7 +285,7 @@ static const unsigned long _cfm[6] = {
 }
 /*-----------------------------------------------------------*/
 
-void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( xTaskHandle pxTask, char *pcTaskName )
 {
 	/* This will get called if a stack overflow is detected during the context
 	switch.  Set configCHECK_FOR_STACK_OVERFLOWS to 2 to also check for stack

FreeRTOS/Demo/ColdFire_MCF52259_CodeWarrior/main.c

@@ -253,7 +253,7 @@ void prvSetupHardware( void )
 }
 /*-----------------------------------------------------------*/
 
-void vApplicationStackOverflowHook( TaskHandle_t *pxTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
 {
 	/* This will get called if a stack overflow is detected during the context
 	switch.  Set configCHECK_FOR_STACK_OVERFLOWS to 2 to also check for stack