1 /* ----------------------------------------------------------------------------
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2 * SAM Software Package License
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3 * ----------------------------------------------------------------------------
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4 * Copyright (c) 2011, Atmel Corporation
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6 * All rights reserved.
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are met:
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11 * - Redistributions of source code must retain the above copyright notice,
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12 * this list of conditions and the disclaimer below.
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14 * Atmel's name may not be used to endorse or promote products derived from
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15 * this software without specific prior written permission.
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17 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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20 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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23 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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24 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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25 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 * ----------------------------------------------------------------------------
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33 * Implementation of syscall bindings.
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37 /*----------------------------------------------------------------------------
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39 *----------------------------------------------------------------------------*/
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40 #include "compiler.h"
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41 #include "misc/console.h"
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47 #include <sys/types.h>
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48 #include <sys/stat.h>
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50 /*----------------------------------------------------------------------------
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51 * Imported variables
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52 *----------------------------------------------------------------------------*/
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56 /*----------------------------------------------------------------------------
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57 * Exported functions
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58 *----------------------------------------------------------------------------*/
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60 /* Desactivate stream buffering */
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61 CONSTRUCTOR static void _disable_io_buffering(void)
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63 setvbuf(stdout, (char *)NULL, _IONBF, 0);
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66 extern caddr_t _sbrk(int incr);
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67 caddr_t _sbrk(int incr)
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69 static unsigned char *heap = NULL;
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70 unsigned char *prev_heap;
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73 heap = (unsigned char *) &_heap;
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79 return (caddr_t) prev_heap;
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82 extern int _getpid(void);
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88 extern void _kill(int pid, int sig);
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89 void _kill(int pid, int sig)
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94 extern void _exit(int status);
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95 void _exit(int status)
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97 printf("Program terminated with status %d.\n", status);
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101 extern int _fstat(int file, struct stat *st);
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102 int _fstat(int file, struct stat *st)
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104 st->st_mode = S_IFCHR;
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108 extern int _lseek(int file, int ptr, int dir);
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109 int _lseek(int file, int ptr, int dir)
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114 extern int _isatty(int file);
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115 int _isatty(int file)
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120 extern int _read(int file, char *ptr, int len);
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121 int _read(int file, char *ptr, int len)
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126 extern int _write(int file, char *ptr, int len);
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127 int _write(int file, char *ptr, int len)
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131 for (i = 0; i < len; i++, ptr++) {
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132 console_put_char(*ptr);
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138 extern int _close(int file);
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139 int _close(int file)
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144 #elif defined __ICCARM__ /* IAR Ewarm 5.41+ */
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147 * \brief Outputs a character on the DBGU.
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149 * \param c Character to output.
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151 * \return The character that was output.
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153 WEAK int putchar(int c)
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155 console_put_char(c);
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159 #endif /* defined __ICCARM__ */
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