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cc3200: Place functions only used while booting in a special section.

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Such functions are never used after MicroPython has started, and they
remain in RAM wasting space. Now they are placed in a special section
named "boot" which sits just before the heap, allowing us to extend
the effective heap area up to the new boot section. Right now, this
gives us back ~1K, but in the future, more functions might end up in
there as well.
This commit is contained in:
danicampora 2015-03-02 14:11:02 +01:00
parent 02fda44a30
commit 26cbc91373
11 changed files with 71 additions and 38 deletions
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5
cc3200/FreeRTOS/Source/portable/GCC/ARM_CM3/port.c
View File

@ -202,6 +202,7 @@ static void prvTaskExitError( void );
/*
* See header file for description.
*/
__attribute__ ((section (".boot")))
StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t pxCode, void *pvParameters )
{
/* Simulate the stack frame as it would be created by a context switch
@ -220,6 +221,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
}
/*-----------------------------------------------------------*/
__attribute__ ((section (".boot")))
static void prvTaskExitError( void )
{
/* A function that implements a task must not exit or attempt to return to
@ -254,6 +256,7 @@ void vPortSVCHandler( void )
}
/*-----------------------------------------------------------*/
__attribute__ ((section (".boot")))
static void prvPortStartFirstTask( void )
{
__asm volatile(
@ -274,6 +277,7 @@ static void prvPortStartFirstTask( void )
/*
* See header file for description.
*/
__attribute__ ((section (".boot")))
BaseType_t xPortStartScheduler( void )
{
/* configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to 0.
@ -643,6 +647,7 @@ void xPortSysTickHandler( void )
* Setup the systick timer to generate the tick interrupts at the required
* frequency.
*/
__attribute__ ((section (".boot")))
__attribute__(( weak )) void vPortSetupTimerInterrupt( void )
{
/* Calculate the constants required to configure the tick interrupt. */

8
cc3200/FreeRTOS/Source/tasks.c
View File

@ -515,6 +515,7 @@ static void prvResetNextTaskUnblockTime( void );
/*-----------------------------------------------------------*/
__attribute__ ((section (".boot")))
BaseType_t xTaskGenericCreate( TaskFunction_t pxTaskCode, const char * const pcName, const uint16_t usStackDepth, void * const pvParameters, UBaseType_t uxPriority, TaskHandle_t * const pxCreatedTask, StackType_t * const puxStackBuffer, const MemoryRegion_t * const xRegions ) /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
{
BaseType_t xReturn;
@ -1454,6 +1455,7 @@ TCB_t * pxNewTCB;
#endif /* ( ( INCLUDE_xTaskResumeFromISR == 1 ) && ( INCLUDE_vTaskSuspend == 1 ) ) */
/*-----------------------------------------------------------*/
__attribute__ ((section (".boot")))
void vTaskStartScheduler( void )
{
BaseType_t xReturn;
@ -2700,7 +2702,7 @@ static portTASK_FUNCTION( prvIdleTask, pvParameters )
}
#endif /* configUSE_TICKLESS_IDLE */
/*-----------------------------------------------------------*/
__attribute__ ((section (".boot")))
static void prvInitialiseTCBVariables( TCB_t * const pxTCB, const char * const pcName, UBaseType_t uxPriority, const MemoryRegion_t * const xRegions, const uint16_t usStackDepth ) /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
{
UBaseType_t x;
@ -2809,7 +2811,7 @@ UBaseType_t x;
#endif /* portUSING_MPU_WRAPPERS */
/*-----------------------------------------------------------*/
__attribute__ ((section (".boot")))
static void prvInitialiseTaskLists( void )
{
UBaseType_t uxPriority;
@ -2912,7 +2914,7 @@ static void prvAddCurrentTaskToDelayedList( const TickType_t xTimeToWake )
}
}
/*-----------------------------------------------------------*/
__attribute__ ((section (".boot")))
static TCB_t *prvAllocateTCBAndStack( const uint16_t usStackDepth, StackType_t * const puxStackBuffer )
{
TCB_t *pxNewTCB;

11
cc3200/application.lds
View File

@ -89,6 +89,17 @@ SECTIONS
. = ALIGN(8);
_ebss = .;
} > SRAM
/* place here functions that are only called during boot up, */
/* that way, we can re-use this area for the micropython heap */
.boot :
{
. = ALIGN(8);
_boot = .;
*(.boot*)
. = ALIGN(8);
_eboot = .;
} > SRAM
/* allocate the micropython heap */
.heap :

3
cc3200/hal/cc3200_hal.c
View File

@ -78,7 +78,8 @@ extern void (* const g_pfnVectors[256])(void);
/******************************************************************************
DEFINE PUBLIC FUNCTIONS
******************************************************************************/
__attribute__ ((section (".boot")))
void HAL_SystemInit (void) {
MAP_IntVTableBaseSet((unsigned long)&g_pfnVectors[0]);

1
cc3200/hal/startup_gcc.c
View File

@ -60,6 +60,7 @@ extern uint32_t __init_data;
// Forward declaration of the default fault handlers.
//
//*****************************************************************************
__attribute__ ((section (".boot")))
void ResetISR(void);
#ifdef DEBUG
static void NmiSR(void) __attribute__( ( naked ) );

2
cc3200/main.c
View File

@ -59,6 +59,7 @@ OsiTaskHandle mpTaskHandle;
DEFINE PUBLIC FUNCTIONS
******************************************************************************/
__attribute__ ((section (".boot")))
int main (void) {
// Initialize the clocks and the interrupt system
@ -82,7 +83,6 @@ int main (void) {
for ( ; ; );
}
void stoupper (char *str) {
while (str && *str != '\0') {
*str = (char)toupper((int)(*str));

1
cc3200/mods/pybrtc.c
View File

@ -51,6 +51,7 @@
/// rtc.datetime((2014, 5, 1, 4, 13, 0, 0, 0))
/// print(rtc.datetime())
__attribute__ ((section (".boot")))
void pybrtc_init(void) {
// if RTC was previously set leave it alone
if (MAP_PRCMSysResetCauseGet() == PRCM_POWER_ON) {

1
cc3200/mods/pybsd.c
View File

@ -79,6 +79,7 @@ STATIC mp_obj_t pybsd_enable (mp_obj_t self_in);
/******************************************************************************
DECLARE PUBLIC FUNCTIONS
******************************************************************************/
__attribute__ ((section (".boot")))
void pybsd_init0 (void) {
// allocate memory for the sd file system
ASSERT ((pybsd_obj.fatfs = mem_Malloc(sizeof(FATFS))) != NULL);

72
cc3200/mptask.c
View File

@ -69,9 +69,10 @@
/******************************************************************************
DECLARE PRIVATE FUNCTIONS
******************************************************************************/
STATIC void main_init_sflash_filesystem (void);
STATIC void main_enter_ap_mode (void);
STATIC void main_create_main_py (void);
STATIC void mptask_pre_init (void);
STATIC void mptask_init_sflash_filesystem (void);
STATIC void mptask_enter_ap_mode (void);
STATIC void mptask_create_main_py (void);
/******************************************************************************
DECLARE PUBLIC DATA
@ -100,39 +101,18 @@ void TASK_Micropython (void *pvParameters) {
bool safeboot;
FRESULT res;
#if MICROPY_HW_ENABLE_RTC
pybrtc_init();
#endif
#ifdef DEBUG
safeboot = false;
#else
safeboot = mperror_safe_boot_requested();
#endif
// Create the simple link spawn task
ASSERT (OSI_OK == VStartSimpleLinkSpawnTask(SIMPLELINK_SPAWN_TASK_PRIORITY));
// Allocate memory for the flash file system
ASSERT ((sflash_fatfs = mem_Malloc(sizeof(FATFS))) != NULL);
#if MICROPY_HW_HAS_SDCARD
pybsd_init0();
#endif
#ifdef DEBUG
ASSERT (OSI_OK == osi_TaskCreate(TASK_Servers,
(const signed char *)"Servers",
SERVERS_STACK_SIZE, NULL, SERVERS_PRIORITY, &svTaskHandle));
#else
ASSERT (OSI_OK == osi_TaskCreate(TASK_Servers,
(const signed char *)"Servers",
SERVERS_STACK_SIZE, NULL, SERVERS_PRIORITY, NULL));
#endif
mptask_pre_init ();
soft_reset:
// GC init
gc_init(&_heap, &_eheap);
gc_init(&_boot, &_eheap);
// Micro Python init
mp_init();
@ -167,13 +147,13 @@ soft_reset:
mperror_enable_heartbeat();
main_enter_ap_mode();
mptask_enter_ap_mode();
// enable telnet and ftp servers
servers_enable();
// initialize the serial flash file system
main_init_sflash_filesystem();
mptask_init_sflash_filesystem();
// append the SFLASH paths to the system path
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR__slash_SFLASH));
@ -268,8 +248,34 @@ soft_reset_exit:
/******************************************************************************
DEFINE PRIVATE FUNCTIONS
******************************************************************************/
__attribute__ ((section (".boot")))
STATIC void mptask_pre_init (void) {
#if MICROPY_HW_ENABLE_RTC
pybrtc_init();
#endif
STATIC void main_init_sflash_filesystem (void) {
// Create the simple link spawn task
ASSERT (OSI_OK == VStartSimpleLinkSpawnTask(SIMPLELINK_SPAWN_TASK_PRIORITY));
// Allocate memory for the flash file system
ASSERT ((sflash_fatfs = mem_Malloc(sizeof(FATFS))) != NULL);
#if MICROPY_HW_HAS_SDCARD
pybsd_init0();
#endif
#ifdef DEBUG
ASSERT (OSI_OK == osi_TaskCreate(TASK_Servers,
(const signed char *)"Servers",
SERVERS_STACK_SIZE, NULL, SERVERS_PRIORITY, &svTaskHandle));
#else
ASSERT (OSI_OK == osi_TaskCreate(TASK_Servers,
(const signed char *)"Servers",
SERVERS_STACK_SIZE, NULL, SERVERS_PRIORITY, NULL));
#endif
}
STATIC void mptask_init_sflash_filesystem (void) {
// Initialise the local flash filesystem.
// Create it if needed, and mount in on /sflash.
// try to mount the flash
@ -283,13 +289,13 @@ STATIC void main_init_sflash_filesystem (void) {
__fatal_error("could not create /SFLASH file system");
}
// create empty main.py
main_create_main_py();
mptask_create_main_py();
} else if (res == FR_OK) {
// mount sucessful
FILINFO fno;
if (FR_OK != f_stat("/SFLASH/MAIN.PY", &fno)) {
// create empty main.py
main_create_main_py();
mptask_create_main_py();
}
} else {
__fatal_error("could not create /SFLASH file system");
@ -321,14 +327,14 @@ STATIC void main_init_sflash_filesystem (void) {
}
}
STATIC void main_enter_ap_mode (void) {
STATIC void mptask_enter_ap_mode (void) {
// Enable simplelink in low power mode
wlan_sl_enable (ROLE_AP, SERVERS_DEF_AP_SSID, strlen(SERVERS_DEF_AP_SSID), SERVERS_DEF_AP_SECURITY,
SERVERS_DEF_AP_KEY, strlen(SERVERS_DEF_AP_KEY), SERVERS_DEF_AP_CHANNEL);
wlan_set_pm_policy (SL_NORMAL_POLICY);
}
STATIC void main_create_main_py (void) {
STATIC void mptask_create_main_py (void) {
// create empty main.py
FIL fp;
f_open(&fp, "/SFLASH/MAIN.PY", FA_WRITE | FA_CREATE_ALWAYS);

3
cc3200/simplelink/oslib/osi_freertos.c
View File

@ -275,6 +275,7 @@ OsiReturnVal_e osi_LockObjCreate(OsiLockObj_t* pLockObj)
\note
\warning
*/
__attribute__ ((section (".boot")))
OsiReturnVal_e osi_TaskCreate(P_OSI_TASK_ENTRY pEntry,const signed char * const pcName,
unsigned short usStackDepth, void *pvParameters,
unsigned long uxPriority,OsiTaskHandle* pTaskHandle)
@ -449,6 +450,7 @@ void vSimpleLinkSpawnTask(void *pvParameters)
\note
\warning
*/
__attribute__ ((section (".boot")))
OsiReturnVal_e VStartSimpleLinkSpawnTask(unsigned portBASE_TYPE uxPriority)
{
xSimpleLinkSpawnQueue = xQueueCreate( slQUEUE_SIZE, sizeof( tSimpleLinkSpawnMsg ) );
@ -666,6 +668,7 @@ void osi_ExitCritical(void)
\note
\warning
*/
__attribute__ ((section (".boot")))
void osi_start()
{
vTaskStartScheduler();

2
cc3200/util/gccollect.h
View File

@ -30,6 +30,8 @@ extern uint32_t _etext;
extern uint32_t _sidata;
extern uint32_t _data;
extern uint32_t _edata;
extern uint32_t _boot;
extern uint32_t _eboot;
extern uint32_t _bss;
extern uint32_t _ebss;
extern uint32_t _heap;