136 lines
2.4 KiB
C
136 lines
2.4 KiB
C
/*
|
|
* Copyright (C) OpenTX
|
|
*
|
|
* Based on code named
|
|
* th9x - http://code.google.com/p/th9x
|
|
* er9x - http://code.google.com/p/er9x
|
|
* gruvin9x - http://code.google.com/p/gruvin9x
|
|
*
|
|
* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <errno.h>
|
|
#include "debug.h"
|
|
|
|
#undef errno
|
|
extern int errno;
|
|
extern int _heap_start;
|
|
extern int _heap_end;
|
|
|
|
unsigned char * heap = (unsigned char *)&_heap_start;
|
|
|
|
extern caddr_t _sbrk(int nbytes)
|
|
{
|
|
if (heap + nbytes < (unsigned char *)&_heap_end) {
|
|
unsigned char * prev_heap = heap;
|
|
heap += nbytes;
|
|
return (caddr_t)prev_heap;
|
|
}
|
|
else {
|
|
errno = ENOMEM;
|
|
return ((void *)-1);
|
|
}
|
|
}
|
|
|
|
#if defined(THREADSAFE_MALLOC) && !defined(BOOT)
|
|
|
|
#include <FreeRTOS/include/FreeRTOS.h>
|
|
#include <FreeRTOS/include/task.h>
|
|
|
|
void __malloc_lock(struct _reent *r)
|
|
{
|
|
(void)(r);
|
|
if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED)
|
|
vTaskSuspendAll();
|
|
};
|
|
|
|
void __malloc_unlock(struct _reent *r)
|
|
{
|
|
(void)(r);
|
|
if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED)
|
|
(void)xTaskResumeAll();
|
|
};
|
|
#endif
|
|
|
|
#if !defined(SEMIHOSTING)
|
|
extern int _gettimeofday(void *p1, void *p2)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
extern int _link(char *old, char *nw)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
extern int _unlink(const char *path)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
extern int _open(const char *name, int flags, int mode)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
extern int _close(int file)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
extern int _fstat(int file, struct stat * st)
|
|
{
|
|
st->st_mode = S_IFCHR;
|
|
return 0;
|
|
}
|
|
|
|
extern int _isatty(int file)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
extern int _lseek(int file, int ptr, int dir)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
extern int _read(int file, char *ptr, int len)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
extern int _write(int file, char *ptr, int len)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
extern int _getpid()
|
|
{
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
extern void _exit(int status)
|
|
{
|
|
TRACE("_exit(%d)", status);
|
|
for (;;);
|
|
}
|
|
|
|
extern void _kill(int pid, int sig)
|
|
{
|
|
return;
|
|
}
|