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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [ARM7_LPC2368_Eclipse/] [RTOSDemo/] [syscalls.c] - Rev 600
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/**************************************************************************** * Copyright (c) 2009 by Michael Fischer. All rights reserved. * * 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 the author 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 OWNER 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. * **************************************************************************** * History: * * 28.03.09 mifi First Version, based on the original syscall.c from * newlib version 1.17.0 ****************************************************************************/ #include <stdlib.h> #include <errno.h> #include <string.h> #include <sys/stat.h> #include <sys/types.h> /***************************************************************************/ int _read_r (struct _reent *r, int file, char * ptr, int len) { r = r; file = file; ptr = ptr; len = len; errno = EINVAL; return -1; } /***************************************************************************/ int _lseek_r (struct _reent *r, int file, int ptr, int dir) { r = r; file = file; ptr = ptr; dir = dir; return 0; } /***************************************************************************/ int _write_r (struct _reent *r, int file, char * ptr, int len) { r = r; file = file; ptr = ptr; #if 0 int index; /* For example, output string by UART */ for(index=0; index<len; index++) { if (ptr[index] == '\n') { uart_putc('\r'); } uart_putc(ptr[index]); } #endif return len; } /***************************************************************************/ int _close_r (struct _reent *r, int file) { return 0; } /***************************************************************************/ /* Register name faking - works in collusion with the linker. */ register char * stack_ptr __asm ("sp"); caddr_t _sbrk_r (struct _reent *r, int incr) { extern char end __asm ("end"); /* Defined by the linker. */ static char * heap_end; char * prev_heap_end; if (heap_end == NULL) heap_end = & end; prev_heap_end = heap_end; if (heap_end + incr > stack_ptr) { /* Some of the libstdc++-v3 tests rely upon detecting out of memory errors, so do not abort here. */ #if 0 extern void abort (void); _write (1, "_sbrk: Heap and stack collision\n", 32); abort (); #else errno = ENOMEM; return (caddr_t) -1; #endif } heap_end += incr; return (caddr_t) prev_heap_end; } /***************************************************************************/ int _fstat_r (struct _reent *r, int file, struct stat * st) { r = r; file = file; memset (st, 0, sizeof (* st)); st->st_mode = S_IFCHR; return 0; } /***************************************************************************/ int _isatty_r(struct _reent *r, int fd) { r = r; fd = fd; return 1; } /*** EOF ***/
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