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Mini Shell
Mini Shell
%( systemtap_v <= "2.7" %?
# sys32_ipc() is just a syscall multiplexer (similar to
# sys_socketcall()). So, we don't really need to probe it, since we'll
# be probing what sys32_ipc() will call (semget, msgsnd, msgrcv,
# shmat, etc.).
# ipc ________________________________________________________
# int sys_ipc (uint call, int first, int second, int third, void __user *ptr, long fifth)
#
@define _SYSCALL_IPC_NAME
%(
name = "ipc"
%)
@define _SYSCALL_IPC_ARGSTR
%(
argstr = sprintf("%d, %d, %d, %d, %p, %d", call, first,
second, third, ptr_uaddr, fifth)
%)
probe syscall.ipc = dw_syscall.ipc !, nd_syscall.ipc ? {}
probe syscall.ipc.return = dw_syscall.ipc.return !, nd_syscall.ipc.return ? {}
# dw_ipc _____________________________________________________
probe dw_syscall.ipc = kernel.function("sys_ipc") ?
{
@_SYSCALL_IPC_NAME
call = $call
first = $first
second = $second
third = $third
ptr_uaddr = $ptr
fifth = $fifth
@_SYSCALL_IPC_ARGSTR
}
probe dw_syscall.ipc.return = kernel.function("sys_ipc").return ?
{
@_SYSCALL_IPC_NAME
@SYSC_RETVALSTR($return)
}
# nd_ipc _____________________________________________________
probe nd_syscall.ipc = kprobe.function("sys_ipc") ?
{
@_SYSCALL_IPC_NAME
asmlinkage()
call = uint_arg(1)
first = int_arg(2)
second = int_arg(3)
third = int_arg(4)
ptr_uaddr = pointer_arg(5)
fifth = long_arg(6)
@_SYSCALL_IPC_ARGSTR
}
probe nd_syscall.ipc.return = kprobe.function("sys_ipc").return ?
{
@_SYSCALL_IPC_NAME
@SYSC_RETVALSTR(returnval())
}
%)
Zerion Mini Shell 1.0