From ddddb94f05629eedac8e66af2621358c13a48e9d Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sat, 27 Aug 2005 18:19:01 +0000 Subject: [PATCH] make sure __NF_sysfs exists before trying to use it --- libbb/syscalls.c | 9 +++++++++ 1 file changed, 9 insertions(+) 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 @@ 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) -- 2.25.1