/*
* 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>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.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
_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)
+int sysfs(int option, unsigned int fs_index, char * buf)
{
- return(syscall(__NR_sysfs, option, fs_index, buf));
-}
+#ifndef __NR_pivot_root
+#warning This kernel does not support the sysfs syscall
+#warning -> The sysfs system call is being stubbed out...
+ bb_error_msg("\n\nTo make this application work, you will need to recompile\n"
+ "BusyBox with a kernel supporting the pivot_root system call.\n");
+ errno = ENOSYS;
+ return -1;
#else
-_syscall3(int, sysfs, int, option, unsigned int, fs_index, char *, buf);
+ return(syscall(__NR_sysfs, option, fs_index, buf));
#endif
+}
+int pivot_root(const char * new_root,const char * put_old)
+{
#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.
*/
bb_error_msg("\n\nTo make this application work, you will need to recompile\n"
- "with a kernel supporting the pivot_root system call. -Erik\n");
- errno=ENOSYS;
+ "BusyBox with a kernel supporting the pivot_root system call.\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
-
+ return(syscall(__NR_pivot_root, new_root, put_old));
+#endif /* __NR_pivot_root */
+}
+/* These syscalls are not included in ancient glibc versions,
+ so we have to define them ourselves, whee ! */
+#if ((__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1))
-#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);
+int bdflush(int func, int data)
+{
+ return(syscall(__NR_bdflush, func, data));
+}
#ifndef __alpha__
# define __NR_klogctl __NR_syslog
- _syscall3(int, klogctl, int, type, char *, b, int, len);
-#endif
+int klogctl(int type, char *b, int len)
+{
+ return(syscall(__NR_klogctl, type, b, len));
+}
+#endif /* __alpha__ */
+
-#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)
{
+#ifndef __NR_umount2
+#warning This kernel does not support the umount2 syscall
+#warning -> The umount2 system call is being stubbed out...
/* 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.
*/
bb_error_msg("\n\nTo make this application work, you will need to recompile\n"
- "with a kernel supporting the umount2 system call. -Erik\n");
- errno=ENOSYS;
+ "BusyBox with a kernel supporting the umount2 system call.\n");
+ errno = ENOSYS;
return -1;
+#else
+ return(syscall(__NR_umount2, special_file, flags));
+#endif /* __NR_pivot_root */
}
-# else
-_syscall2(int, umount2, const char *, special_file, int, flags);
-#endif
-
-#endif /* __GNU_LIBRARY__ < 5 */
+#endif /* old glibc check */
/* END CODE */