| /** |
| ***************************************************************************** |
| ** |
| ** File : syscalls.c |
| ** |
| ** Author : Auto-generated by STM32CubeIDE |
| ** |
| ** Abstract : STM32CubeIDE Minimal System calls file |
| ** |
| ** For more information about which c-functions |
| ** need which of these lowlevel functions |
| ** please consult the Newlib libc-manual |
| ** |
| ** Environment : STM32CubeIDE MCU |
| ** |
| ** Distribution: The file is distributed as is, without any warranty |
| ** of any kind. |
| ** |
| ***************************************************************************** |
| ** |
| ** <h2><center>© COPYRIGHT(c) 2018 STMicroelectronics</center></h2> |
| ** |
| ** Redistribution and use in source and binary forms, with or without modification, |
| ** are permitted provided that the following conditions are met: |
| ** 1. Redistributions of source code must retain the above copyright notice, |
| ** this list of conditions and the following disclaimer. |
| ** 2. Redistributions in binary form must reproduce the above copyright notice, |
| ** this list of conditions and the following disclaimer in the documentation |
| ** and/or other materials provided with the distribution. |
| ** 3. Neither the name of STMicroelectronics nor the names of its contributors |
| ** may be used to endorse or promote products derived from this software |
| ** without specific prior written permission. |
| ** |
| ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| ** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| ** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| ** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| ** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| ** |
| ** |
| ***************************************************************************** |
| */ |
| |
| /* 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; |
| } |