diff options
Diffstat (limited to 'release/src/router/busybox/libbb/syscalls.c')
-rw-r--r-- | release/src/router/busybox/libbb/syscalls.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/release/src/router/busybox/libbb/syscalls.c b/release/src/router/busybox/libbb/syscalls.c new file mode 100644 index 00000000..426a14aa --- /dev/null +++ b/release/src/router/busybox/libbb/syscalls.c @@ -0,0 +1,115 @@ +/* vi: set sw=4 ts=4: */ +/* + * some system calls possibly missing from libc + * + * Copyright (C) 1999,2000,2001 by Lineo, inc. + * Written by Erik Andersen <andersen@lineo.com>, <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> +#ifndef __UCLIBC__ +#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: +*/ |