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# times ______________________________________________________
#
# long sys_times(struct tms __user * tbuf)
# long compat_sys_times(struct compat_tms __user *tbuf)
@define _SYSCALL_TIMES_NAME
%(
name = "times"
%)
@define _SYSCALL_TIMES_ARGSTR
%(
argstr = sprintf("%s", buf_str)
%)
@define _SYSCALL_TIMES_REGARGS
%(
buf_uaddr = pointer_arg(1)
buf_str = _struct_tms_u(buf_uaddr)
%)
@define _SYSCALL_TIMES_REGARGS_STORE
%(
if (@probewrite(buf_uaddr))
set_pointer_arg(1, buf_uaddr)
%)
probe syscall.times = dw_syscall.times !, nd_syscall.times ? {}
probe syscall.times.return = dw_syscall.times.return !,
nd_syscall.times.return ? {}
# dw_times _____________________________________________________
probe dw_syscall.times = kernel.function("compat_sys_times").call ?,
kernel.function("sys_times").call ?
{
@_SYSCALL_TIMES_NAME
buf_uaddr = @__pointer($tbuf)
buf_str = _struct_tms_u(buf_uaddr)
@_SYSCALL_TIMES_ARGSTR
}
probe dw_syscall.times.return = kernel.function("compat_sys_times").return ?,
kernel.function("sys_times").return ?
{
@_SYSCALL_TIMES_NAME
@SYSC_RETVALSTR($return)
}
# nd_times _____________________________________________________
probe nd_syscall.times = nd1_syscall.times!, nd2_syscall.times!, tp_syscall.times
{ }
probe nd1_syscall.times = kprobe.function("compat_sys_times") ?,
kprobe.function("sys_times") ?
{
@_SYSCALL_TIMES_NAME
asmlinkage()
@_SYSCALL_TIMES_REGARGS
@_SYSCALL_TIMES_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.times = kprobe.function(@arch_syscall_prefix "compat_sys_times") ?,
kprobe.function(@arch_syscall_prefix "sys_times") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_TIMES_NAME
@_SYSCALL_TIMES_REGARGS
@_SYSCALL_TIMES_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_TIMES_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.times = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_times"), @const("__NR_compat_times"))
@_SYSCALL_TIMES_NAME
@_SYSCALL_TIMES_REGARGS
@_SYSCALL_TIMES_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_TIMES_REGARGS_STORE %)
}
probe nd_syscall.times.return = nd1_syscall.times.return!, nd2_syscall.times.return!, tp_syscall.times.return
{ }
probe nd1_syscall.times.return = kprobe.function("compat_sys_times").return ?,
kprobe.function("sys_times").return ?
{
@_SYSCALL_TIMES_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.times.return = kprobe.function(@arch_syscall_prefix "compat_sys_times").return ?,
kprobe.function(@arch_syscall_prefix "sys_times").return ?
{
@_SYSCALL_TIMES_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.times.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_times"), @const("__NR_compat_times"))
@_SYSCALL_TIMES_NAME
@SYSC_RETVALSTR($ret)
}
|
