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# move_pages ____________________________________________________
# long sys_move_pages(pid_t pid, unsigned long nr_pages,
# const void __user * __user *pages,
# const int __user *nodes,
# int __user *status,
# int flags)
#
# long compat_sys_move_pages(pid_t pid, unsigned long nr_pages,
# compat_uptr_t __user *pages32,
# const int __user *nodes,
# int __user *status,
# int flags)
#
@define _SYSCALL_MOVE_PAGES_NAME
%(
name = "move_pages"
%)
@define _SYSCALL_MOVE_PAGES_ARGSTR
%(
argstr = sprintf("%d, %u, %p, %p, %p, %s", pid, nr_pages, pages,
nodes, status, flags_str)
%)
@define _SYSCALL_MOVE_PAGES_REGARGS
%(
pid = int_arg(1)
nr_pages = ulong_arg(2)
pages = pointer_arg(3)
nodes = pointer_arg(4)
status = pointer_arg(5)
flags = int_arg(6)
flags_str = _mempolicy_flags_str(flags)
%)
@define _SYSCALL_MOVE_PAGES_REGARGS_STORE
%(
if (@probewrite(pid))
set_int_arg(1, pid)
if (@probewrite(nr_pages))
set_ulong_arg(2, nr_pages)
if (@probewrite(pages))
set_pointer_arg(3, pages)
if (@probewrite(nodes))
set_pointer_arg(4, nodes)
if (@probewrite(status))
set_pointer_arg(5, status)
if (@probewrite(flags))
set_int_arg(6, flags)
%)
probe syscall.move_pages = dw_syscall.move_pages !, nd_syscall.move_pages ? {}
probe syscall.move_pages.return = dw_syscall.move_pages.return !, nd_syscall.move_pages.return ? {}
# dw_move_pages _____________________________________________________
probe dw_syscall.move_pages = __syscall.move_pages ?,
kernel.function("compat_sys_move_pages").call ?
{
@_SYSCALL_MOVE_PAGES_NAME
pages = @choose_defined($pages32, $pages)
pid = __int32($pid)
nodes = $nodes
status = $status
flags = __int32($flags)
flags_str = _mempolicy_flags_str(flags)
nr_pages = @__compat_ulong($nr_pages)
@_SYSCALL_MOVE_PAGES_ARGSTR
}
probe __syscall.move_pages = kernel.function("sys_move_pages").call
{
@__syscall_gate(@const("__NR_move_pages"))
}
probe dw_syscall.move_pages.return = __syscall.move_pages.return ?,
kernel.function("compat_sys_move_pages").return ?
{
@_SYSCALL_MOVE_PAGES_NAME
@SYSC_RETVALSTR($return)
}
probe __syscall.move_pages.return = kernel.function("sys_move_pages").return
{
@__syscall_gate(@const("__NR_move_pages"))
}
# nd_move_pages _____________________________________________________
probe nd_syscall.move_pages = nd1_syscall.move_pages!, nd2_syscall.move_pages!, tp_syscall.move_pages
{ }
probe nd1_syscall.move_pages = __nd1_syscall.move_pages ?,
kprobe.function("compat_sys_move_pages") ?
{
@_SYSCALL_MOVE_PAGES_NAME
asmlinkage()
@_SYSCALL_MOVE_PAGES_REGARGS
@_SYSCALL_MOVE_PAGES_ARGSTR
}
probe __nd1_syscall.move_pages = kprobe.function("sys_move_pages")
{
@__syscall_gate(@const("__NR_move_pages"))
}
/* kernel 4.17+ */
probe nd2_syscall.move_pages =
kprobe.function(@arch_syscall_prefix "sys_move_pages") ?,
kprobe.function(@arch_syscall_prefix "compat_sys_move_pages") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_MOVE_PAGES_NAME
@_SYSCALL_MOVE_PAGES_REGARGS
@_SYSCALL_MOVE_PAGES_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_MOVE_PAGES_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.move_pages = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_move_pages"), @const("__NR_compat_move_pages"))
@_SYSCALL_MOVE_PAGES_NAME
@_SYSCALL_MOVE_PAGES_REGARGS
@_SYSCALL_MOVE_PAGES_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_MOVE_PAGES_REGARGS_STORE %)
}
probe nd_syscall.move_pages.return = nd1_syscall.move_pages.return!, nd2_syscall.move_pages.return!, tp_syscall.move_pages.return
{ }
probe nd1_syscall.move_pages.return = __nd1_syscall.move_pages.return ?,
kprobe.function("compat_sys_move_pages").return ?
{
@_SYSCALL_MOVE_PAGES_NAME
@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.move_pages.return = kprobe.function("sys_move_pages").return
{
@__syscall_gate(@const("__NR_move_pages"))
}
/* kernel 4.17+ */
probe nd2_syscall.move_pages.return =
kprobe.function(@arch_syscall_prefix "sys_move_pages").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_move_pages").return ?
{
@_SYSCALL_MOVE_PAGES_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.move_pages.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_move_pages"), @const("__NR_compat_move_pages"))
@_SYSCALL_MOVE_PAGES_NAME
@SYSC_RETVALSTR($ret)
}
|
