Проект OpenNet: MAN utrace (2) Системные вызовы (FreeBSD и Linux)

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utrace (2)

>> utrace (2) ( FreeBSD man: Системные вызовы )

BSD mandoc

NAME



utrace

 - insert user record in ktrace log

LIBRARY

Lb libc

SYNOPSIS

   #include <sys/types.h>
   #include <sys/param.h>
   #include <sys/time.h>
   #include <sys/uio.h>
   #include <sys/ktrace.h>
int utrace (const void *addr size_t len);

DESCRIPTION

Adds a record to the process trace with information supplied by user. The record contains Fa len bytes from memory pointed to by Fa addr . This call only has an effect if the calling process is being traced.

RETURN VALUES

Rv -std

ERRORS

Bq Er EINVAL: Specified data length Fa len was bigger than KTR_USER_MAXLEN
Bq Er ENOMEM: Insufficient memory to honor the request.
Bq Er ENOSYS: Currently running kernel was compiled without ktrace(2) support (options KTRACE )