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This commit is contained in:
Mike Frysinger 2005-03-04 01:27:18 +00:00
parent 3b05b80cd7
commit 9b9e5479e8
1 changed files with 29 additions and 30 deletions
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59
libbb/syscalls.c
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@ -29,7 +29,7 @@
#include <sys/syscall.h> #include <sys/syscall.h>
#include "libbb.h" #include "libbb.h"
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)); return(syscall(__NR_sysfs, option, fs_index, buf));
} }
@ -39,37 +39,37 @@ int pivot_root(const char * new_root,const char * put_old)
#ifndef __NR_pivot_root #ifndef __NR_pivot_root
#warning This kernel does not support the pivot_root syscall #warning This kernel does not support the pivot_root syscall
#warning -> The pivot_root system call is being stubbed out... #warning -> The pivot_root system call is being stubbed out...
/* BusyBox was compiled against a kernel that did not support /* BusyBox was compiled against a kernel that did not support
* the pivot_root system call. To make this application work, * the pivot_root system call. To make this application work,
* you will need to recompile with a kernel supporting the * you will need to recompile with a kernel supporting the
* pivot_root system call. * pivot_root system call.
*/ */
bb_error_msg("\n\nTo make this application work, you will need to recompile\n" 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"); "BusyBox with a kernel supporting the pivot_root system call.\n");
errno=ENOSYS; errno = ENOSYS;
return -1; return -1;
#else #else
return(syscall(__NR_pivot_root, new_root, put_old)); return(syscall(__NR_pivot_root, new_root, put_old));
#endif #endif /* __NR_pivot_root */
} }
/* These syscalls are not included in ancient glibc versions,
/* These syscalls are not included in ancient glibc versions */ so we have to define them ourselves, whee ! */
#if ((__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)) #if ((__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1))
int bdflush(int func, int data) int bdflush(int func, int data)
{ {
return(syscall(__NR_bdflush, func, data)); return(syscall(__NR_bdflush, func, data));
} }
#ifndef __alpha__ #ifndef __alpha__
# define __NR_klogctl __NR_syslog # define __NR_klogctl __NR_syslog
int klogctl(int type, char *b, int len) int klogctl(int type, char *b, int len)
{ {
return(syscall(__NR_klogctl, type, b, len)); return(syscall(__NR_klogctl, type, b, len));
} }
#endif #endif /* __alpha__ */
int umount2(const char * special_file, int flags) int umount2(const char * special_file, int flags)
@ -77,22 +77,21 @@ int umount2(const char * special_file, int flags)
#ifndef __NR_pivot_root #ifndef __NR_pivot_root
#warning This kernel does not support the umount2 syscall #warning This kernel does not support the umount2 syscall
#warning -> The umount2 system call is being stubbed out... #warning -> The umount2 system call is being stubbed out...
/* BusyBox was compiled against a kernel that did not support /* BusyBox was compiled against a kernel that did not support
* the umount2 system call. To make this application work, * the umount2 system call. To make this application work,
* you will need to recompile with a kernel supporting the * you will need to recompile with a kernel supporting the
* umount2 system call. * umount2 system call.
*/ */
bb_error_msg("\n\nTo make this application work, you will need to recompile\n" bb_error_msg("\n\nTo make this application work, you will need to recompile\n"
"BusyBox with a kernel supporting the umount2 system call.\n"); "BusyBox with a kernel supporting the umount2 system call.\n");
errno=ENOSYS; errno = ENOSYS;
return -1; return -1;
#else #else
return(syscall(__NR_umount2, special_file, flags)); return(syscall(__NR_umount2, special_file, flags));
#endif #endif /* __NR_pivot_root */
} }
#endif /* old glibc check */
#endif
/* END CODE */ /* END CODE */