Landzo_K60Z_WebServer/src/syscalls.c

42 lines
735 B
C

#include <sys/time.h>
#include <sys/errno.h>
#include "FreeRTOS.h"
#include "task.h"
#include "MK60D10.h"
int _gettimeofday(struct timeval *restrict tp, void *restrict tzp) {
tp->tv_sec = RTC->TSR;
tp->tv_usec = 0U;
return 0;
}
caddr_t _sbrk(int incr)
{
extern char end __asm("end");
extern char heap_limit __asm("__HeapLimit");
static char *heap_end;
char *prev_heap_end;
taskENTER_CRITICAL();
if (heap_end == NULL)
heap_end = &end;
prev_heap_end = heap_end;
if (heap_end + incr > &heap_limit)
{
errno = ENOMEM;
taskEXIT_CRITICAL();
return (caddr_t)-1;
}
heap_end += incr;
taskEXIT_CRITICAL();
return (caddr_t)prev_heap_end;
}