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// Copyright (C) 2012 Red Hat Inc., Bryn M. Reeves <[email protected]>
//
// This file is part of systemtap, and is free software.  You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.
//

// <tapsetdescription>
// Functions in the panic tapset allow a probe handler to invoke
// the system panic routine with a user-specified message.
//
// This may be used with a crash dump collection facility such as 
// kexec/kdump in order to capture data for post-mortem debugging.
//
// Due to the fact that this will bring the system to an immediate
// halt the functions in this tapset require guru mode.
// </tapsetdescription>

/**
 * sfunction panic - trigger a panic
 * @msg: message to pass to kernel's panic() function
 *
 * Description: This function triggers an immediate panic of the running
 * kernel with a user-specified panic message.
 * It requires guru mode.
 */
function panic(msg:string) %{
        /* guru */ /* unmodified-fnargs */
        panic("%s", STAP_ARG_msg);
%}