1 /* vi: set sw=4 ts=4: */
3 * some system calls possibly missing from libc
5 * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 /* Kernel headers before 2.1.mumble need this on the Alpha to get
29 #include <sys/syscall.h>
30 #if __GNU_LIBRARY__ < 5
31 /* This is needed for libc5 */
32 #include <asm/unistd.h>
36 int sysfs( int option, unsigned int fs_index, char * buf)
38 return(syscall(__NR_sysfs, option, fs_index, buf));
41 int pivot_root(const char * new_root,const char * put_old)
43 #ifndef __NR_pivot_root
44 #warning This kernel does not support the pivot_root syscall
45 #warning -> The pivot_root system call is being stubbed out...
46 /* BusyBox was compiled against a kernel that did not support
47 * the pivot_root system call. To make this application work,
48 * you will need to recompile with a kernel supporting the
49 * pivot_root system call.
51 bb_error_msg("\n\nTo make this application work, you will need to recompile\n"
52 "BusyBox with a kernel supporting the pivot_root system call.\n");
56 return(syscall(__NR_pivot_root, new_root, put_old));
62 #if __GNU_LIBRARY__ < 5 || ((__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1))
64 /* These syscalls are not included as part of libc5 */
65 int bdflush(int func, int data)
67 return(syscall(__NR_bdflush, func, data));
71 # define __NR_klogctl __NR_syslog
72 int klogctl(int type, char *b, int len)
74 return(syscall(__NR_klogctl, type, b, len));
79 int umount2(const char * special_file, int flags)
81 #ifndef __NR_pivot_root
82 #warning This kernel does not support the umount2 syscall
83 #warning -> The umount2 system call is being stubbed out...
84 /* BusyBox was compiled against a kernel that did not support
85 * the umount2 system call. To make this application work,
86 * you will need to recompile with a kernel supporting the
87 * umount2 system call.
89 bb_error_msg("\n\nTo make this application work, you will need to recompile\n"
90 "BusyBox with a kernel supporting the umount2 system call.\n");
94 return(syscall(__NR_umount2, special_file, flags));
99 #endif /* __GNU_LIBRARY__ < 5 */
105 c-file-style: "linux"