/* vi: set sw=4 ts=4: */ /* * some system calls possibly missing from libc * * Copyright (C) 1999,2000 by Lineo, inc. and Erik Andersen * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include <stdio.h> #include <errno.h> #include <unistd.h> /* Kernel headers before 2.1.mumble need this on the Alpha to get _syscall* defined. */ #define __LIBRARY__ #include <sys/syscall.h> #if __GNU_LIBRARY__ < 5 /* This is needed for libc5 */ #include <asm/unistd.h> #endif #include "libbb.h" #if defined(__ia64__) int sysfs( int option, unsigned int fs_index, char * buf) { return(syscall(__NR_sysfs, option, fs_index, buf)); } #else _syscall3(int, sysfs, int, option, unsigned int, fs_index, char *, buf); #endif #ifndef __NR_pivot_root #warning This kernel does not support the pivot_root syscall #warning -> The pivot_root system call is being stubbed out... int pivot_root(const char * new_root,const char * put_old) { /* BusyBox was compiled against a kernel that did not support * the pivot_root system call. To make this application work, * you will need to recompile with a kernel supporting the * pivot_root system call. */ fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n"); fprintf(stderr, "with a kernel supporting the pivot_root system call. -Erik\n\n"); errno=ENOSYS; return -1; } #else # if defined(__ia64__) int pivot_root(const char * new_root,const char * put_old) { return(syscall(__NR_pivot_root, new_root, put_old)); } # else _syscall2(int,pivot_root,const char *,new_root,const char *,put_old); # endif #endif #if __GNU_LIBRARY__ < 5 || ((__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)) /* These syscalls are not included as part of libc5 */ _syscall2(int, bdflush, int, func, int, data); #ifndef __alpha__ # define __NR_klogctl __NR_syslog _syscall3(int, klogctl, int, type, char *, b, int, len); #endif #ifndef __NR_umount2 # warning This kernel does not support the umount2 syscall # warning -> The umount2 system call is being stubbed out... int umount2(const char * special_file, int flags) { /* BusyBox was compiled against a kernel that did not support * the umount2 system call. To make this application work, * you will need to recompile with a kernel supporting the * umount2 system call. */ fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n"); fprintf(stderr, "with a kernel supporting the umount2 system call. -Erik\n\n"); errno=ENOSYS; return -1; } # else _syscall2(int, umount2, const char *, special_file, int, flags); #endif #endif /* __GNU_LIBRARY__ < 5 */ /* END CODE */ /* Local Variables: c-file-style: "linux" c-basic-offset: 4 tab-width: 4 End: */