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make sure __NF_sysfs exists before trying to use it

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Mike Frysinger 2005-08-27 18:19:01 +00:00
parent 038b076e55
commit ddddb94f05
1 changed files with 9 additions and 0 deletions
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9
libbb/syscalls.c
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@ -31,7 +31,16 @@
int sysfs(int option, unsigned int fs_index, char * 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
return(syscall(__NR_sysfs, option, fs_index, buf));
#endif
}
int pivot_root(const char * new_root,const char * put_old)