관리-도구

편집 파일: sysc_timerfd.stp

# timerfd ______________________________________________
#
# Note that timerfd() only existed between kernels 2.6.22 and 2.6.25
# and was replaced by timerfd_create(), timerfd_gettime(),
# and timerfd_settime().
#
# long sys_timerfd(int ufd, int clockid, int flags,
#	    const struct itimerspec __user *utmr)
# long compat_sys_timerfd(int ufd, int clockid, int flags,
#  	   const struct compat_itimerspec __user *utmr)
#

@define _SYSCALL_TIMERFD_NAME
%(
	name = "timerfd"
%)

@define _SYSCALL_TIMERFD_ARGSTR
%(
	argstr = sprintf("%d, %d, 0x%x", ufd, clockid, flags)
%)

probe syscall.timerfd = dw_syscall.timerfd !, nd_syscall.timerfd ? {}
probe syscall.timerfd.return = dw_syscall.timerfd.return !,
                               nd_syscall.timerfd.return ? {}

# dw_timerfd _____________________________________________________

probe dw_syscall.timerfd = kernel.function("sys_timerfd").call ?,
                        kernel.function("compat_sys_timerfd").call ?
{
	@_SYSCALL_TIMERFD_NAME
	ufd = $ufd
	clockid = @__pointer($clockid)
	flags = $flags
	@_SYSCALL_TIMERFD_ARGSTR
}
probe dw_syscall.timerfd.return = kernel.function("sys_timerfd").return ?,
                               kernel.function("compat_sys_timerfd").return ?
{
	@_SYSCALL_TIMERFD_NAME
	@SYSC_RETVALSTR($return)
}

# nd_timerfd _____________________________________________________

probe nd_syscall.timerfd = kprobe.function("sys_timerfd") ?,
                           kprobe.function("compat_sys_timerfd") ?
{
	@_SYSCALL_TIMERFD_NAME
	asmlinkage()
	ufd = int_arg(1)
	clockid = int_arg(2)
	flags = int_arg(3)
	@_SYSCALL_TIMERFD_ARGSTR
}
probe nd_syscall.timerfd.return = kprobe.function("sys_timerfd").return ?,
                                  kprobe.function("compat_sys_timerfd").return ?
{
	@_SYSCALL_TIMERFD_NAME
	@SYSC_RETVALSTR(returnval())
}