4 * \brief Syscalls for SAM (GCC).
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6 * Copyright (c) 2011-2012 Atmel Corporation. All rights reserved.
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12 * Redistribution and use in source and binary forms, with or without
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13 * modification, are permitted provided that the following conditions are met:
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15 * 1. Redistributions of source code must retain the above copyright notice,
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16 * this list of conditions and the following disclaimer.
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18 * 2. Redistributions in binary form must reproduce the above copyright notice,
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19 * this list of conditions and the following disclaimer in the documentation
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20 * and/or other materials provided with the distribution.
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22 * 3. The name of Atmel may not be used to endorse or promote products derived
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23 * from this software without specific prior written permission.
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25 * 4. This software may only be redistributed and used in connection with an
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26 * Atmel microcontroller product.
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28 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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31 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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32 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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38 * POSSIBILITY OF SUCH DAMAGE.
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46 #include <sys/types.h>
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47 #include <sys/stat.h>
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61 extern caddr_t _sbrk(int incr);
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62 extern int link(char *old, char *new);
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63 extern int _close(int file);
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64 extern int _fstat(int file, struct stat *st);
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65 extern int _isatty(int file);
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66 extern int _lseek(int file, int ptr, int dir);
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67 extern void _exit(int status);
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68 extern void _kill(int pid, int sig);
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69 extern int _getpid(void);
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71 extern caddr_t _sbrk(int incr)
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73 static unsigned char *heap = NULL;
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74 unsigned char *prev_heap;
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77 heap = (unsigned char *)&_end;
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83 return (caddr_t) prev_heap;
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86 extern int link(char *old, char *new)
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91 extern int _close(int file)
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96 extern int _fstat(int file, struct stat *st)
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98 st->st_mode = S_IFCHR;
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103 extern int _isatty(int file)
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108 extern int _lseek(int file, int ptr, int dir)
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113 extern void _exit(int status)
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115 printf("Exiting with status %d.\n", status);
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120 extern void _kill(int pid, int sig)
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125 extern int _getpid(void)
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