/usr/lib/bcc/include/sys/errno.h is in elks-libc 0.16.17-3.3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | #ifndef __ERRNO_H
#define __ERRNO_H
#include <features.h>
#include __SYSINC__(errno.h)
#ifdef __USE_BSD
extern int sys_nerr;
extern char *sys_errlist[];
#endif
#ifdef __USE_GNU
extern int _sys_nerr;
extern char *_sys_errlist[];
#endif
extern int errno;
__BEGIN_DECLS
extern void perror __P ((__const char* __s));
extern char* strerror __P ((int __errno));
__END_DECLS
#endif
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