L4Re - L4 Runtime Environment
std_exc_io
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1 // vi:set ft=cpp: -*- Mode: C++ -*-
7 /*
8  * (c) 2011 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
9  * Alexander Warg <warg@os.inf.tu-dresden.de>
10  * economic rights: Technische Universität Dresden (Germany)
11  *
12  * This file is part of TUD:OS and distributed under the terms of the
13  * GNU General Public License 2.
14  * Please see the COPYING-GPL-2 file for details.
15  *
16  * As a special exception, you may use this file as part of a free software
17  * library without restriction. Specifically, if other files instantiate
18  * templates or use macros or inline functions from this file, or you compile
19  * this file and link it with other files to produce an executable, this
20  * file does not by itself cause the resulting executable to be covered by
21  * the GNU General Public License. This exception does not however
22  * invalidate any other reasons why the executable file might be covered by
23  * the GNU General Public License.
24  */
25 #pragma once
26 
27 #include <l4/cxx/exceptions>
28 #include <iostream>
29 
30 inline
31 std::ostream &
32 operator << (std::ostream &o, L4::Base_exception const &e)
33 {
34  o << "Exception: " << e.str() << ", backtrace ...\n";
35  for (int i = 0; i < e.frame_count(); ++i)
36  o << (void *)(e.pc_array()[i]) << '\n';
37 
38  return o;
39 }
40 
41 inline
42 std::ostream &
43 operator << (std::ostream &o, L4::Runtime_error const &e)
44 {
45  o << "Exception: " << e.str() << ": ";
46  if (e.extra_str())
47  o << e.extra_str() << ": ";
48  o << "backtrace ...\n";
49  for (int i = 0; i < e.frame_count(); ++i)
50  o << (void *)(e.pc_array()[i]) << '\n';
51 
52  return o;
53 }
Base class for all exceptions, thrown by the L4Re framework.
Definition: exceptions:116
char const * extra_str() const
Get the description text for this runtime error.
Definition: exceptions:173
Base exceptions.
IO Stream.
Exception for an abstract runtime error.
Definition: exceptions:139
char const * str() const
Return a human readable string for the exception.
Definition: exceptions:165
int frame_count() const
Get the number of entries that are valid in the call trace.
Definition: exceptions:88
virtual char const * str() const =0
Return a human readable string for the exception.
void const *const * pc_array() const
Get the array containing the call trace.
Definition: exceptions:84