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|
# wait4 ______________________________________________________
#
# long sys_wait4(pid_t pid,
# int __user *stat_addr,
# int options,
# struct rusage __user *ru)
# COMPAT_SYSCALL_DEFINE4(wait4,
# compat_pid_t, pid,
# compat_uint_t __user *, stat_addr,
# int, options,
# struct compat_rusage __user *, ru)
#
@define _SYSCALL_WAIT4_NAME
%(
name = "wait4"
%)
@define _SYSCALL_WAIT4_ARGSTR
%(
argstr = sprintf("%d, %p, %s, %p", pid, status_uaddr,
options_str, rusage_uaddr)
%)
@define _SYSCALL_WAIT4_REGARGS
%(
pid = int_arg(1)
status_uaddr = pointer_arg(2)
options = int_arg(3)
options_str = _wait4_opt_str(options)
rusage_uaddr = pointer_arg(4)
%)
@define _SYSCALL_WAIT4_REGARGS_STORE
%(
if (@probewrite(pid))
set_int_arg(1, pid)
if (@probewrite(status_uaddr))
set_pointer_arg(2, status_uaddr)
if (@probewrite(options))
set_int_arg(3, options)
if (@probewrite(rusage_uaddr))
set_pointer_arg(4, rusage_uaddr)
%)
probe syscall.wait4 = dw_syscall.wait4 !, nd_syscall.wait4 ? {}
probe syscall.wait4.return = dw_syscall.wait4.return !,
nd_syscall.wait4.return ? {}
# dw_wait4 _____________________________________________________
probe dw_syscall.wait4 = __syscall.wait4, __syscall.compat_wait4 ?
{
@_SYSCALL_WAIT4_NAME
pid = __int32(@choose_defined($upid, $pid))
status_uaddr = @__pointer($stat_addr)
options = __int32($options)
options_str = _wait4_opt_str(options)
rusage_uaddr = @__pointer($ru)
@_SYSCALL_WAIT4_ARGSTR
}
probe __syscall.wait4 = kernel.function("sys_wait4").call
{
@__syscall_gate(@const("__NR_wait4"))
}
probe __syscall.compat_wait4 = kernel.function("compat_sys_wait4").call ?
{
@__compat_syscall_gate(@const("__NR_compat_wait4"))
}
probe dw_syscall.wait4.return = __syscall.wait4.return,
__syscall.compat_wait4.return ?
{
@_SYSCALL_WAIT4_NAME
if (returnval () <= 0)
status_str = "N/A"
else if (@entry($stat_addr) == 0)
status_str = "NULL"
else
status_str = _wait_status_str(user_int(@entry($stat_addr)))
@SYSC_RETVALSTR($return)
}
probe __syscall.wait4.return = kernel.function("sys_wait4").return
{
@__syscall_gate(@const("__NR_wait4"))
}
probe __syscall.compat_wait4.return =
kernel.function("compat_sys_wait4").return ?
{
@__compat_syscall_gate(@const("__NR_compat_wait4"))
}
# nd_wait4 _____________________________________________________
probe nd_syscall.wait4 = nd1_syscall.wait4!, nd2_syscall.wait4!, tp_syscall.wait4
{ }
probe nd1_syscall.wait4 = __nd1_syscall.wait4, __nd1_syscall.compat_wait4 ?
{
@_SYSCALL_WAIT4_NAME
asmlinkage()
@_SYSCALL_WAIT4_REGARGS
@_SYSCALL_WAIT4_ARGSTR
}
probe __nd1_syscall.wait4 = kprobe.function("sys_wait4")
{
@__syscall_gate(@const("__NR_wait4"))
}
probe __nd1_syscall.compat_wait4 = kprobe.function("compat_sys_wait4") ?
{
@__compat_syscall_gate(@const("__NR_compat_wait4"))
}
probe nd2_syscall.wait4 = kprobe.function(@arch_syscall_prefix "sys_wait4") ?,
kprobe.function(@arch_syscall_prefix "compat_sys_wait4") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_WAIT4_NAME
@_SYSCALL_WAIT4_REGARGS
@_SYSCALL_WAIT4_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_WAIT4_REGARGS_STORE %)
}
probe tp_syscall.wait4 = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_wait4"), @const("__NR_compat_wait4"))
@_SYSCALL_WAIT4_NAME
@_SYSCALL_WAIT4_REGARGS
@_SYSCALL_WAIT4_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_WAIT4_REGARGS_STORE %)
}
probe nd_syscall.wait4.return = nd1_syscall.wait4.return!, nd2_syscall.wait4.return!, tp_syscall.wait4.return
{ }
probe nd1_syscall.wait4.return = __nd1_syscall.wait4.return,
__nd1_syscall.compat_wait4.return ?
{
@_SYSCALL_WAIT4_NAME
asmlinkage()
status_uaddr = pointer_arg(2)
if (returnval () <= 0)
status_str = "N/A"
else if (status_uaddr == 0)
status_str = "NULL"
else
status_str = _wait_status_str(user_int(status_uaddr))
@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.wait4.return = kprobe.function("sys_wait4").return
{
@__syscall_gate(@const("__NR_wait4"))
}
probe __nd1_syscall.compat_wait4.return =
kprobe.function("compat_sys_wait4").return ?
{
@__compat_syscall_gate(@const("__NR_compat_wait4"))
}
probe nd2_syscall.wait4.return = kprobe.function(@arch_syscall_prefix "sys_wait4").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_wait4").return ?
{
@_SYSCALL_WAIT4_NAME
__set_syscall_pt_regs(@entry(pointer_arg(1)))
status_uaddr = pointer_arg(2)
if (returnval () <= 0)
status_str = "N/A"
else if (status_uaddr == 0)
status_str = "NULL"
else
status_str = _wait_status_str(user_int(status_uaddr))
@SYSC_RETVALSTR(returnval())
}
probe tp_syscall.wait4.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_wait4"), @const("__NR_compat_wait4"))
@_SYSCALL_WAIT4_NAME
status_uaddr = pointer_arg(2)
if (returnval () <= 0)
status_str = "N/A"
else if (status_uaddr == 0)
status_str = "NULL"
else
status_str = _wait_status_str(user_int(status_uaddr))
@SYSC_RETVALSTR($ret)
}
|
