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| author | Mike Frysinger <vapier@gentoo.org> | 2005-08-27 18:19:01 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2005-08-27 18:19:01 +0000 |
| commit | ddddb94f05629eedac8e66af2621358c13a48e9d (patch) | |
| tree | 680a3495ae5a4b5aeba11cd24a81dc623eb2f787 /libbb | |
| parent | 038b076e5592681eb870413f00829e8e984d2ce4 (diff) | |
| download | busybox-w32-ddddb94f05629eedac8e66af2621358c13a48e9d.tar.gz busybox-w32-ddddb94f05629eedac8e66af2621358c13a48e9d.tar.bz2 busybox-w32-ddddb94f05629eedac8e66af2621358c13a48e9d.zip | |
make sure __NF_sysfs exists before trying to use it
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/syscalls.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libbb/syscalls.c b/libbb/syscalls.c index dac90e24b..6786b1e6b 100644 --- a/libbb/syscalls.c +++ b/libbb/syscalls.c | |||
| @@ -31,7 +31,16 @@ | |||
| 31 | 31 | ||
| 32 | int sysfs(int option, unsigned int fs_index, char * buf) | 32 | int sysfs(int option, unsigned int fs_index, char * buf) |
| 33 | { | 33 | { |
| 34 | #ifndef __NR_pivot_root | ||
| 35 | #warning This kernel does not support the sysfs syscall | ||
| 36 | #warning -> The sysfs system call is being stubbed out... | ||
| 37 | bb_error_msg("\n\nTo make this application work, you will need to recompile\n" | ||
| 38 | "BusyBox with a kernel supporting the pivot_root system call.\n"); | ||
| 39 | errno = ENOSYS; | ||
| 40 | return -1; | ||
| 41 | #else | ||
| 34 | return(syscall(__NR_sysfs, option, fs_index, buf)); | 42 | return(syscall(__NR_sysfs, option, fs_index, buf)); |
| 43 | #endif | ||
| 35 | } | 44 | } |
| 36 | 45 | ||
| 37 | int pivot_root(const char * new_root,const char * put_old) | 46 | int pivot_root(const char * new_root,const char * put_old) |