160 lines
2.6 KiB
C
160 lines
2.6 KiB
C
/**
|
|
******************************************************************************
|
|
* @file syscalls.c
|
|
* @author Auto-generated by STM32CubeIDE
|
|
* @brief STM32CubeIDE Minimal System calls file
|
|
*
|
|
* For more information about which c-functions
|
|
* need which of these lowlevel functions
|
|
* please consult the Newlib libc-manual
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© Copyright (c) 2020 STMicroelectronics.
|
|
* All rights reserved.</center></h2>
|
|
*
|
|
* This software component is licensed by ST under BSD 3-Clause license,
|
|
* the "License"; You may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at:
|
|
* opensource.org/licenses/BSD-3-Clause
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
/* Includes */
|
|
#include <sys/stat.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <signal.h>
|
|
#include <time.h>
|
|
#include <sys/time.h>
|
|
#include <sys/times.h>
|
|
|
|
|
|
/* Variables */
|
|
//#undef errno
|
|
extern int errno;
|
|
extern int __io_putchar(int ch) __attribute__((weak));
|
|
extern int __io_getchar(void) __attribute__((weak));
|
|
|
|
register char * stack_ptr asm("sp");
|
|
|
|
char *__env[1] = { 0 };
|
|
char **environ = __env;
|
|
|
|
|
|
/* Functions */
|
|
void initialise_monitor_handles()
|
|
{
|
|
}
|
|
|
|
int _getpid(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
int _kill(int pid, int sig)
|
|
{
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
void _exit (int status)
|
|
{
|
|
_kill(status, -1);
|
|
while (1) {} /* Make sure we hang here */
|
|
}
|
|
|
|
__attribute__((weak)) int _read(int file, char *ptr, int len)
|
|
{
|
|
int DataIdx;
|
|
|
|
for (DataIdx = 0; DataIdx < len; DataIdx++)
|
|
{
|
|
*ptr++ = __io_getchar();
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
__attribute__((weak)) int _write(int file, char *ptr, int len)
|
|
{
|
|
int DataIdx;
|
|
|
|
for (DataIdx = 0; DataIdx < len; DataIdx++)
|
|
{
|
|
__io_putchar(*ptr++);
|
|
}
|
|
return len;
|
|
}
|
|
|
|
int _close(int file)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
|
|
int _fstat(int file, struct stat *st)
|
|
{
|
|
st->st_mode = S_IFCHR;
|
|
return 0;
|
|
}
|
|
|
|
int _isatty(int file)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
int _lseek(int file, int ptr, int dir)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int _open(char *path, int flags, ...)
|
|
{
|
|
/* Pretend like we always fail */
|
|
return -1;
|
|
}
|
|
|
|
int _wait(int *status)
|
|
{
|
|
errno = ECHILD;
|
|
return -1;
|
|
}
|
|
|
|
int _unlink(char *name)
|
|
{
|
|
errno = ENOENT;
|
|
return -1;
|
|
}
|
|
|
|
int _times(struct tms *buf)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
int _stat(char *file, struct stat *st)
|
|
{
|
|
st->st_mode = S_IFCHR;
|
|
return 0;
|
|
}
|
|
|
|
int _link(char *old, char *new)
|
|
{
|
|
errno = EMLINK;
|
|
return -1;
|
|
}
|
|
|
|
int _fork(void)
|
|
{
|
|
errno = EAGAIN;
|
|
return -1;
|
|
}
|
|
|
|
int _execve(char *name, char **argv, char **env)
|
|
{
|
|
errno = ENOMEM;
|
|
return -1;
|
|
}
|