gzdoom/src/autozend.cpp
Randy Heit 93202a5488 - Removed -fno-strict-aliasing from the GCC flags for ZDoom and fixed the
issues that caused its inclusion. Is an optimized GCC build any faster
  for being able to use strict aliasing rules? I dunno. It's still slower
  than a VC++ build.
  
  I did run into two cases where TAutoSegIterator caused intractable problems
  with breaking strict aliasing rules, so I removed the templating from it,
  and the caller is now responsible for casting the probe value from void *.
- Removed #include "autosegs.h" from several files that did not need it
  (in particular, dobject.h when not compiling with VC++).


SVN r1743 (trunk)
2009-08-02 03:38:57 +00:00

73 lines
2.5 KiB
C++

/*
** autozend.cpp
** This file contains the tails of lists stored in special data segments
**
**---------------------------------------------------------------------------
** Copyright 1998-2006 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
** See autostart.cpp for an explanation of why I do things like this.
*/
#include "autosegs.h"
#if defined(_MSC_VER)
#pragma data_seg(".areg$z")
void *ARegTail = 0;
#pragma data_seg(".creg$z")
void *CRegTail = 0;
#pragma data_seg(".greg$z")
void *GRegTail = 0;
#pragma data_seg(".mreg$z")
void *MRegTail = 0;
#pragma data_seg(".yreg$z")
void *YRegTail = 0;
#pragma data_seg()
#elif defined(__GNUC__)
#include "doomtype.h"
void *ARegTail __attribute__((section(SECTION_AREG))) = 0;
void *CRegTail __attribute__((section(SECTION_CREG))) = 0;
void *GRegTail __attribute__((section(SECTION_GREG))) = 0;
void *MRegTail __attribute__((section(SECTION_MREG))) = 0;
void *YRegTail __attribute__((section(SECTION_YREG))) = 0;
#else
#error Please fix autozend.cpp for your compiler
#endif