syscalls.c File Reference

STM32CubeIDE Minimal System calls file. More...

#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>

Go to the source code of this file.

Functions
int	__io_putchar (int ch) __attribute__((weak))
int	__io_getchar (void)
void	initialise_monitor_handles ()
int	_getpid (void)
int	_kill (int pid, int sig)
void	_exit (int status)
	__attribute__ ((weak))
int	_close (int file)
int	_fstat (int file, struct stat *st)
int	_isatty (int file)
int	_lseek (int file, int ptr, int dir)
int	_open (char *path, int flags,...)
int	_wait (int *status)
int	_unlink (char *name)
int	_times (struct tms *buf)
int	_stat (char *file, struct stat *st)
int	_link (char *old, char *new)
int	_fork (void)
int	_execve (char *name, char **argv, char **env)

Variables
int	errno
char **	environ = __env

Detailed Description

STM32CubeIDE Minimal System calls file.

Author

Auto-generated by STM32CubeIDE

       For more information about which c-functions
       need which of these lowlevel functions
       please consult the Newlib libc-manual

Attention

© Copyright (c) 2020 STMicroelectronics. All rights reserved.

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

Definition in file syscalls.c.

Function Documentation

__attribute__()

__attribute__

(

(weak)

)

Definition at line 69 of file syscalls.c.

{
    int DataIdx;
 
    for (DataIdx = 0; DataIdx < len; DataIdx++)
    {
        *ptr++ = __io_getchar();
    }
 
return len;
}

__io_getchar()

int __io_getchar

(

void

)

Definition at line 39 of file syscalls.c.

                 { 0 };

__io_putchar()

int __io_putchar

(

int

ch

)

_close()

int _close

(

int

file

)

Definition at line 92 of file syscalls.c.

{
    return -1;
}

_execve()

int _execve	(	char *	name,
		char **	argv,
		char **	env
	)

Definition at line 155 of file syscalls.c.

{
    errno = ENOMEM;
    return -1;
}

_exit()

void _exit

(

int

status

)

Definition at line 63 of file syscalls.c.

{
    _kill(status, -1);
    while (1) {}        /* Make sure we hang here */
}

_fork()

int _fork

(

void

)

Definition at line 149 of file syscalls.c.

{
    errno = EAGAIN;
    return -1;
}

_fstat()

int _fstat	(	int	file,
		struct stat *	st
	)

Definition at line 98 of file syscalls.c.

{
    st->st_mode = S_IFCHR;
    return 0;
}

_getpid()

int _getpid

(

void

)

Definition at line 52 of file syscalls.c.

{
    return 1;
}

_isatty()

int _isatty

(

int

file

)

Definition at line 104 of file syscalls.c.

{
    return 1;
}

_kill()

int _kill	(	int	pid,
		int	sig
	)

Definition at line 57 of file syscalls.c.

{
    errno = EINVAL;
    return -1;
}

_link()

int _link	(	char *	old,
		char *	new
	)

Definition at line 143 of file syscalls.c.

{
    errno = EMLINK;
    return -1;
}

_lseek()

int _lseek	(	int	file,
		int	ptr,
		int	dir
	)

Definition at line 109 of file syscalls.c.

{
    return 0;
}

_open()

int _open	(	char *	path,
		int	flags,
			...
	)

Definition at line 114 of file syscalls.c.

{
    /* Pretend like we always fail */
    return -1;
}

_stat()

int _stat	(	char *	file,
		struct stat *	st
	)

Definition at line 137 of file syscalls.c.

{
    st->st_mode = S_IFCHR;
    return 0;
}

_times()

int _times

(

struct tms *

buf

)

Definition at line 132 of file syscalls.c.

{
    return -1;
}

_unlink()

int _unlink

(

char *

name

)

Definition at line 126 of file syscalls.c.

{
    errno = ENOENT;
    return -1;
}

_wait()

int _wait

(

int *

status

)

Definition at line 120 of file syscalls.c.

{
    errno = ECHILD;
    return -1;
}

initialise_monitor_handles()

void initialise_monitor_handles

(

)

Definition at line 48 of file syscalls.c.

{
}

Variable Documentation

environ

char** environ = __env

Definition at line 44 of file syscalls.c.

errno

int errno