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# stime ______________________________________________________
#
# long sys_stime(time_t __user *tptr)
# long compat_sys_stime(compat_time_t __user *tptr)
#
@define _SYSCALL_STIME_NAME
%(
name = "stime"
%)
@define _SYSCALL_STIME_ARGSTR
%(
argstr = sprintf("%p", t_uaddr)
%)
@define _SYSCALL_STIME_REGARGS
%(
t_uaddr = pointer_arg(1)
%)
probe syscall.stime = dw_syscall.stime !, nd_syscall.stime ? {}
probe syscall.stime.return = dw_syscall.stime.return !,
nd_syscall.stime.return ? {}
# dw_stime _____________________________________________________
probe dw_syscall.stime = kernel.function("compat_sys_stime").call ?,
kernel.function("sys_stime").call ?
{
@_SYSCALL_STIME_NAME
t_uaddr = $tptr
/* FIXME. Decode time */
@_SYSCALL_STIME_ARGSTR
}
probe dw_syscall.stime.return = kernel.function("compat_sys_stime").return ?,
kernel.function("sys_stime").return ?
{
@_SYSCALL_STIME_NAME
@SYSC_RETVALSTR($return)
}
# nd_stime _____________________________________________________
probe nd_syscall.stime = nd1_syscall.stime!, nd2_syscall.stime!, tp_syscall.stime
{ }
probe nd1_syscall.stime = kprobe.function("compat_sys_stime") ?,
kprobe.function("sys_stime") ?
{
@_SYSCALL_STIME_NAME
asmlinkage()
@_SYSCALL_STIME_REGARGS
/* FIXME. Decode time */
@_SYSCALL_STIME_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.stime = kprobe.function(@arch_syscall_prefix "compat_sys_stime") ?,
kprobe.function(@arch_syscall_prefix "sys_stime") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_STIME_NAME
@_SYSCALL_STIME_REGARGS
/* FIXME. Decode time */
@_SYSCALL_STIME_ARGSTR
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.stime = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_stime"), @const("__NR_compat_stime"))
@_SYSCALL_STIME_NAME
@_SYSCALL_STIME_REGARGS
@_SYSCALL_STIME_ARGSTR
}
probe nd_syscall.stime.return = nd1_syscall.stime.return!, nd2_syscall.stime.return!, tp_syscall.stime.return
{ }
probe nd1_syscall.stime.return = kprobe.function("compat_sys_stime").return ?,
kprobe.function("sys_stime").return ?
{
@_SYSCALL_STIME_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.stime.return = kprobe.function(@arch_syscall_prefix "compat_sys_stime") ?,
kprobe.function(@arch_syscall_prefix "sys_stime").return ?
{
@_SYSCALL_STIME_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.stime.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_stime"), @const("__NR_compat_stime"))
@_SYSCALL_STIME_NAME
@SYSC_RETVALSTR($ret)
}
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