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// logging tapset -- BPF version
// Copyright (C) 2005-2021 Red Hat Inc.
//
// 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.
function log (msg:string) { /* unprivileged */ /* bpf */
printf("%s\n", msg)
}
function warn (msg:string) { /* unprivileged */ /* bpf */
// TODO: _stp_warn intelligently determines whether msg has a newline
printf("WARNING: %s\n", msg)
}
function exit () { /* unprivileged */ /* bpf */
_set_exit_status()
_send_exit_msg()
}
%(systemtap_v >= "4.0" %?
function abort () { /* unprivileged */ /* bpf */
// TODO PR27820: There may be a delay between setting exit status
// and stapbpf.cxx disabling the probes. This could be solved
// at the cost of setting a global var and adding a check to the
// start of every probe.
_set_exit_status()
_send_exit_msg()
_terminate()
}
%)
function error (msg:string) { /* unprivileged */ /* bpf */
// If error is called within a try block, the instruction flow
// will switch to the corresponding catch block.
_jump_to_catch(msg)
// Execution will reach here if error was called outside a try
// block. In this case, the error message will be stored for
// printing and the error status will be set.
_register_error(msg)
// Short-circuit the program to its exit.
_terminate()
}
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