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 newlib syscall.
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37 /*----------------------------------------------------------------------------
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39 *----------------------------------------------------------------------------*/
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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 * Exported variables
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52 *----------------------------------------------------------------------------*/
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58 /*----------------------------------------------------------------------------
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59 * Exported functions
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60 *----------------------------------------------------------------------------*/
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61 extern void _exit( int status );
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62 extern void _kill( int pid, int sig );
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63 extern int _getpid ( void );
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65 extern caddr_t _sbrk ( int incr )
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67 static unsigned char *heap = NULL;
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68 unsigned char *prev_sheap;
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70 if ( heap == NULL ) {
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71 heap = (unsigned char *)&_sheap;
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77 return (caddr_t) prev_sheap;
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80 extern int link( char *old, char *new )
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87 extern int _close( int file )
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93 extern int _fstat( int file, struct stat *st )
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96 st->st_mode = S_IFCHR;
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101 extern int _isatty( int file )
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107 extern int _lseek( int file, int ptr, int dir )
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115 extern int _read(int file, char *ptr, int len)
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123 extern int _write( int file, char *ptr, int len )
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129 // for (; *ptr != 0; ptr++ )
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130 for ( iIndex=0; iIndex < len; iIndex++, ptr++ ) {
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131 DBG_PutChar( *ptr );
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137 extern void _exit( int status )
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139 printf( "Exiting with status %d.\n", status );
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143 extern void _kill( int pid, int sig )
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150 extern int _getpid ( void )
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