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[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [libgloss/] [sparc/] [syscalls.c] - Rev 833
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/* Copyright (c) 1995 Cygnus Support * * The authors hereby grant permission to use, copy, modify, distribute, * and license this software and its documentation for any purpose, provided * that existing copyright notices are retained in all copies and that this * notice is included verbatim in any distributions. No written agreement, * license, or royalty fee is required for any of the authorized uses. * Modifications to this software may be copyrighted by their authors * and need not follow the licensing terms described here, provided that * the new terms are clearly indicated on the first page of each file where * they apply. * * fake unix routines for sparclite and remote debugger * Many of these routines just substitute an appropriate error status, * if you want some kind of file system access, you'll have to fill them in... * sbrk on the other hand is functional (malloc uses it) but it doesn't do * any checking for lack of memory. * kill and _exit could get more real implementations, as well. */ #include <sys/stat.h> int fstat(int _fd, struct stat* _sbuf) { /* this is used in a few places in stdio... */ /* just error, so they assume a pipe */ return -1; } int isatty(int _fd) { return 1; } int close(int _fd) { /* return value usually ignored anyhow */ return 0; } int open(char *filename) { /* always fail */ return -1; } int getpid() { return 1; } int kill(int pid) { /* if we knew how to nuke the board, we would... */ return 0; } void _exit(int status) { /* likewise... */ return; } int lseek(int _fd, off_t offset, int whence) { /* nothing is ever seekable */ return -1; } extern char end; char* sbrk(int incr) { static char* base; char *b; if(!base) base = &end; b = base; base += incr; return b; }
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