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# mincore ____________________________________________________
# long sys_mincore(unsigned long start, size_t len, unsigned char __user * vec)
#
@define _SYSCALL_MINCORE_NAME
%(
name = "mincore"
%)
@define _SYSCALL_MINCORE_ARGSTR
%(
argstr = sprintf("%p, %u, %p", start, length, vec_uaddr)
%)
@define _SYSCALL_MINCORE_REGARGS
%(
start = pointer_arg(1)
length = ulong_arg(2)
vec_uaddr = pointer_arg(3)
%)
probe syscall.mincore = dw_syscall.mincore !, nd_syscall.mincore ? {}
probe syscall.mincore.return = dw_syscall.mincore.return !, nd_syscall.mincore.return ? {}
# dw_mincore _____________________________________________________
probe dw_syscall.mincore = kernel.function("sys_mincore").call ?
{
@_SYSCALL_MINCORE_NAME
start = $start
length = __ulong($len)
vec_uaddr = $vec
@_SYSCALL_MINCORE_ARGSTR
}
probe dw_syscall.mincore.return = kernel.function("sys_mincore").return ?
{
@_SYSCALL_MINCORE_NAME
@SYSC_RETVALSTR($return)
}
# nd_mincore _____________________________________________________
probe nd_syscall.mincore = nd1_syscall.mincore!, nd2_syscall.mincore!, tp_syscall.mincore
{ }
probe nd1_syscall.mincore = kprobe.function("sys_mincore") ?
{
@_SYSCALL_MINCORE_NAME
asmlinkage()
@_SYSCALL_MINCORE_REGARGS
@_SYSCALL_MINCORE_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.mincore = kprobe.function(@arch_syscall_prefix "sys_mincore") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_MINCORE_NAME
@_SYSCALL_MINCORE_REGARGS
@_SYSCALL_MINCORE_ARGSTR
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.mincore = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_mincore"), @const("__NR_compat_mincore"))
@_SYSCALL_MINCORE_NAME
@_SYSCALL_MINCORE_REGARGS
@_SYSCALL_MINCORE_ARGSTR
}
probe nd_syscall.mincore.return = nd1_syscall.mincore.return!, nd2_syscall.mincore.return!, tp_syscall.mincore.return
{ }
probe nd1_syscall.mincore.return = kprobe.function("sys_mincore").return ?
{
@_SYSCALL_MINCORE_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.mincore.return = kprobe.function(@arch_syscall_prefix "sys_mincore").return ?
{
@_SYSCALL_MINCORE_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.mincore.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_mincore"), @const("__NR_compat_mincore"))
@_SYSCALL_MINCORE_NAME
@SYSC_RETVALSTR($ret)
}
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