Server : Apache System : Linux server2.corals.io 4.18.0-348.2.1.el8_5.x86_64 #1 SMP Mon Nov 15 09:17:08 EST 2021 x86_64 User : corals ( 1002) PHP Version : 7.4.33 Disable Function : exec,passthru,shell_exec,system Directory :  /opt/rh/gcc-toolset-11/root/usr/share/systemtap/tapset/linux/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

# getpriority ________________________________________________
# long sys_getpriority(int which, int who)

@define _SYSCALL_GETPRIORITY_NAME
%(
	name = "getpriority"
%)

@define _SYSCALL_GETPRIORITY_ARGSTR
%(
	argstr = sprintf("%s, %d", _priority_which_str(which), who)
%)

@define _SYSCALL_GETPRIORITY_REGARGS
%(
	which = int_arg(1)
	who = int_arg(2)
%)

@define _SYSCALL_GETPRIORITY_REGARGS_STORE
%(
        if (@probewrite(which))
          set_int_arg(1, which)

	if (@probewrite(who))
	  set_int_arg(2, who)
%)

probe syscall.getpriority = dw_syscall.getpriority !, nd_syscall.getpriority ? {}
probe syscall.getpriority.return = dw_syscall.getpriority.return !,
                                   nd_syscall.getpriority.return ? {}

# dw_getpriority _____________________________________________________

probe dw_syscall.getpriority = kernel.function("sys_getpriority").call
{
	@_SYSCALL_GETPRIORITY_NAME
	which = __int32($which)
	who = __int32($who)
	@_SYSCALL_GETPRIORITY_ARGSTR
}
probe dw_syscall.getpriority.return = kernel.function("sys_getpriority").return
{
	@_SYSCALL_GETPRIORITY_NAME
	@SYSC_RETVALSTR($return)
}

# nd_getpriority _____________________________________________________

probe nd_syscall.getpriority = nd1_syscall.getpriority!, nd2_syscall.getpriority!, tp_syscall.getpriority
  { }

probe nd1_syscall.getpriority = kprobe.function("sys_getpriority") ?
{
	@_SYSCALL_GETPRIORITY_NAME
	asmlinkage()
	@_SYSCALL_GETPRIORITY_REGARGS
	@_SYSCALL_GETPRIORITY_ARGSTR
}

/* kernel 4.17+ */
probe nd2_syscall.getpriority = kprobe.function(@arch_syscall_prefix "sys_getpriority") ?
{
	__set_syscall_pt_regs(pointer_arg(1))
	@_SYSCALL_GETPRIORITY_NAME
	@_SYSCALL_GETPRIORITY_REGARGS
	@_SYSCALL_GETPRIORITY_ARGSTR
},
{
        @_SYSCALL_GETPRIORITY_REGARGS_STORE
}

/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.getpriority = kernel.trace("sys_enter")
{
	__set_syscall_pt_regs($regs)
	@__syscall_compat_gate(@const("__NR_getpriority"), @const("__NR_compat_getpriority"))
	@_SYSCALL_GETPRIORITY_NAME
	@_SYSCALL_GETPRIORITY_REGARGS
	@_SYSCALL_GETPRIORITY_ARGSTR
},
{
        @_SYSCALL_GETPRIORITY_REGARGS_STORE
}

probe nd_syscall.getpriority.return = nd1_syscall.getpriority.return!, nd2_syscall.getpriority.return!, tp_syscall.getpriority.return
  { }
  
probe nd1_syscall.getpriority.return = kprobe.function("sys_getpriority").return ?
{
	@_SYSCALL_GETPRIORITY_NAME
	@SYSC_RETVALSTR(returnval())
}

/* kernel 4.17+ */
probe nd2_syscall.getpriority.return = kprobe.function(@arch_syscall_prefix "sys_getpriority").return ?
{
	@_SYSCALL_GETPRIORITY_NAME
	@SYSC_RETVALSTR(returnval())
}
 
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.getpriority.return = kernel.trace("sys_exit")
{
	__set_syscall_pt_regs($regs)
	@__syscall_compat_gate(@const("__NR_getpriority"), @const("__NR_compat_getpriority"))
	@_SYSCALL_GETPRIORITY_NAME
	@SYSC_RETVALSTR($ret)
}