| /** | |
| * \file | |
| * | |
| * \brief Syscalls for SAM0 (GCC). | |
| * | |
| * Copyright (C) 2012-2013 Atmel Corporation. All rights reserved. | |
| * | |
| * \asf_license_start | |
| * | |
| * \page License | |
| * | |
| * 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. The name of Atmel may not be used to endorse or promote products derived | |
| * from this software without specific prior written permission. | |
| * | |
| * 4. This software may only be redistributed and used in connection with an | |
| * Atmel microcontroller product. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED | |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE | |
| * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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. | |
| * | |
| * \asf_license_stop | |
| * | |
| */ | |
| #include <stdio.h> | |
| #include <stdarg.h> | |
| #include <sys/types.h> | |
| #include <sys/stat.h> | |
| #ifdef __cplusplus | |
| extern "C" { | |
| #endif | |
| #undef errno | |
| extern int errno; | |
| extern int _end; | |
| extern caddr_t _sbrk(int incr); | |
| extern int link(char *old, char *new); | |
| extern int _close(int file); | |
| extern int _fstat(int file, struct stat *st); | |
| extern int _isatty(int file); | |
| extern int _lseek(int file, int ptr, int dir); | |
| extern void _exit(int status); | |
| extern void _kill(int pid, int sig); | |
| extern int _getpid(void); | |
| extern caddr_t _sbrk(int incr) | |
| { | |
| static unsigned char *heap = NULL; | |
| unsigned char *prev_heap; | |
| if (heap == NULL) { | |
| heap = (unsigned char *)&_end; | |
| } | |
| prev_heap = heap; | |
| heap += incr; | |
| return (caddr_t) prev_heap; | |
| } | |
| extern int link(char *old, char *new) | |
| { | |
| 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 void _exit(int status) | |
| { | |
| printf("Exiting with status %d.\n", status); | |
| for (;;); | |
| } | |
| extern void _kill(int pid, int sig) | |
| { | |
| return; | |
| } | |
| extern int _getpid(void) | |
| { | |
| return -1; | |
| } | |
| #ifdef __cplusplus | |
| } | |
| #endif |