77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2006,2007 INESC Porto, INRIA
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Gustavo Carneiro <gjc@inescporto.pt>
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#ifndef BREAKPOINT_H
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#define BREAKPOINT_H
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namespace ns3 {
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/* Hacker macro to place breakpoints for selected machines.
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* Actual use is strongly discouraged of course ;)
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* Copied from GLib 2.12.9.
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* Modified by the GLib Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GLib Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GLib at ftp://ftp.gtk.org/pub/gtk/.
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*/
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/**
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* \ingroup debugging
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*
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* Inserts a breakpoint instruction (or equivalent system call) into
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* the code for selected machines. When an NS_ASSERT cannot verify its condition,
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* this macro is used. Falls back to calling
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* AssertBreakpoint() for architectures where breakpoint assembly
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* instructions are not supported.
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*/
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#if (defined (__i386__) || defined (__amd64__) || defined (__x86_64__)) && defined (__GNUC__) && __GNUC__ >= 2
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# define NS_BREAKPOINT() \
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do{ __asm__ __volatile__ ("int $03"); }while(false)
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#elif defined (_MSC_VER) && defined (_M_IX86)
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# define NS_BREAKPOINT() \
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do{ __asm int 3h }while(false)
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#elif defined (__alpha__) && !defined(__osf__) && defined (__GNUC__) && __GNUC__ >= 2
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# define NS_BREAKPOINT() \
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do{ __asm__ __volatile__ ("bpt"); }while(false)
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#else /* !__i386__ && !__alpha__ */
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# define NS_BREAKPOINT() ns3::BreakpointFallback ()
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#endif
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/**
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* \brief fallback breakpoint function
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*
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* This function is used by the NS_BREAKPOINT() macro as a fallback
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* for when breakpoint assembly instructions are not available. It
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* attempts to halt program execution either by a raising SIGTRAP, on
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* unix systems, or by dereferencing a null pointer.
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*
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* Normally you should not call this function directly.
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*/
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void BreakpointFallback (void);
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}//namespace ns3
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#endif /* BREAKPOINT_H */
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