Fix warnings after moving callback prototypes (#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

@@ -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

@@ -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

@@ -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

@@ -141,7 +141,7 @@ 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.
 	Read input arguments to learn about the offending task. */

FreeRTOS/Demo/AVR_Dx_Atmel_Studio/RTOSDemo/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/AVR_Dx_IAR/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/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

FreeRTOS/Demo/NEC_78K0R_IAR/main.c

@@ -362,8 +362,11 @@ void vRegTestError( void )
 }
 /*-----------------------------------------------------------*/
 
-void vApplicationStackOverflowHook( void )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
+	( void ) xTask;
+	( void ) pcTaskName;
+
 	/* This will get called if an overflow is detected in the stack of a task.
 	Inspect pxCurrentTCB to see which was the offending task. */
 	for( ;; );

FreeRTOS/Demo/NEC_V850ES_IAR/main.c

@@ -252,8 +252,11 @@ static void prvSetupHardware( void )
 }
 /*-----------------------------------------------------------*/
 
-void vApplicationStackOverflowHook( void )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
+	( void ) xTask;
+	( void ) pcTaskName;
+
 	/* This will be called if a task overflows its stack.  pxCurrentTCB
 	can be inspected to see which is the offending task. */
 	for( ;; );

FreeRTOS/Demo/NiosII_CycloneIII_DBC3C40_GCC/RTOSDemo/main.c

@@ -192,8 +192,11 @@ static void prvSetupHardware( void )
 }
 /*-----------------------------------------------------------*/
 
-void vApplicationStackOverflowHook( void )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
+	( void ) xTask;
+	( void ) pcTaskName;
+
 	/* Look at pxCurrentTCB to see which task overflowed its stack. */
 	for( ;; )
     {

FreeRTOS/Demo/PPC440_DP_FPU_Xilinx_Virtex5_GCC/RTOSDemo/main.c

@@ -653,8 +653,8 @@ static void prvRegTestTask2( void *pvParameters )
 /* This hook function will get called if there is a suspected stack overflow.
 An overflow can cause the task name to be corrupted, in which case the task
 handle needs to be used to determine the offending task. */
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName );
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName );
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
 /* To prevent the optimiser removing the variables. */
 volatile TaskHandle_t xTaskIn = xTask;

FreeRTOS/Demo/PPC440_SP_FPU_Xilinx_Virtex5_GCC/RTOSDemo/main.c

@@ -653,8 +653,8 @@ static void prvRegTestTask2( void *pvParameters )
 /* This hook function will get called if there is a suspected stack overflow.
 An overflow can cause the task name to be corrupted, in which case the task
 handle needs to be used to determine the offending task. */
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName );
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName );
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
 /* To prevent the optimiser removing the variables. */
 volatile TaskHandle_t xTaskIn = xTask;

FreeRTOS/Demo/PPC440_Xilinx_Virtex5_GCC/RTOSDemo/main.c

@@ -659,8 +659,8 @@ static void prvRegTestTask2( void *pvParameters )
 /* This hook function will get called if there is a suspected stack overflow.
 An overflow can cause the task name to be corrupted, in which case the task
 handle needs to be used to determine the offending task. */
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName );
-void vApplicationStackOverflowHook( TaskHandle_t xTask, signed char *pcTaskName )
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName );
+void vApplicationStackOverflowHook( TaskHandle_t xTask, char *pcTaskName )
 {
 /* To prevent the optimiser removing the variables. */
 volatile TaskHandle_t xTaskIn = xTask;