diff options
Diffstat (limited to 'libbb/syscalls.c')
| -rw-r--r-- | libbb/syscalls.c | 80 |
1 files changed, 38 insertions, 42 deletions
diff --git a/libbb/syscalls.c b/libbb/syscalls.c index 8d8c689f1..2434cb453 100644 --- a/libbb/syscalls.c +++ b/libbb/syscalls.c @@ -34,71 +34,67 @@ #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 +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; - return -1; -} + /* 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" + "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 + return(syscall(__NR_pivot_root, new_root, put_old)); #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); +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); +int klogctl(int type, char *b, int len) +{ + return(syscall(__NR_klogctl, type, b, 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. - */ - 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; - return -1; -} -# else -_syscall2(int, umount2, const char *, special_file, int, flags); +#ifndef __NR_pivot_root +#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" + "BusyBox with a kernel supporting the umount2 system call.\n"); + errno=ENOSYS; + return -1; +#else + return(syscall(__NR_umount2, special_file, flags)); #endif +} #endif /* __GNU_LIBRARY__ < 5 */ |