Directory restructuring to make it easier to version projects that don't build zdoom.exe.

SVN r4 (trunk)

src/autostart.cpp

@@ -0,0 +1,138 @@
+/*
+** autostart.cpp
+** This file contains the heads of lists stored in special data segments
+**
+**---------------------------------------------------------------------------
+** Copyright 1998-2005 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.
+**---------------------------------------------------------------------------
+**
+** The particular scheme used here was chosen because it's small.
+**
+** An alternative that will work with any C++ compiler is to use static
+** classes to build these lists at run time. Under Visual C++, doing things
+** that way can require a lot of extra space, which is why I'm doing things
+** this way.
+**
+** In the case of TypeInfo lists (section creg), I orginally used the
+** constructor to do just that, and the code for that still exists if you
+** compile with something other than Visual C++ or GCC.
+*/
+
+#include "autosegs.h"
+
+#if defined(_MSC_VER)
+
+#pragma comment(linker, "/merge:.areg=.data /merge:.creg=.data /merge:.greg=.data /merge:.sreg=.data /merge:.wreg=.data")
+
+#pragma data_seg(".areg$a")
+void *ARegHead = 0;
+
+#pragma data_seg(".creg$a")
+void *CRegHead = 0;
+
+#pragma data_seg(".greg$a")
+void *GRegHead = 0;
+
+#pragma data_seg(".sreg$a")
+void *SRegHead = 0;
+
+#pragma data_seg()
+
+
+
+#elif defined(__GNUC__)
+
+#ifndef _WIN32
+void *ARegHead __attribute__((section("areg"))) = 0;
+void *CRegHead __attribute__((section("creg"))) = 0;
+void *GRegHead __attribute__((section("greg"))) = 0;
+void *SRegHead __attribute__((section("sreg"))) = 0;
+#else
+
+// I can't find any way to specify the order to link files with
+// Dev C++, so when compiling with GCC under WIN32, I inspect
+// the executable instead of letting the linker do all the work for
+// me.
+
+void **ARegHead;
+void **CRegHead;
+void **GRegHead;
+void **SRegHead;
+
+#endif
+
+#elif
+
+#error Please fix autostart.cpp for your compiler
+
+#endif
+
+
+#ifdef REGEXEPEEK
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <winnt.h>
+
+struct AutoSegStuff
+{
+	char name[IMAGE_SIZEOF_SHORT_NAME];
+	REGINFO *HeadPtr;
+	REGINFO *TailPtr;
+};
+
+static const AutoSegStuff Stuff[5] =
+{
+	{ "areg", &ARegHead, &ARegTail },
+	{ "creg", &CRegHead, &CRegTail },
+	{ "greg", &GRegHead, &GRegTail },
+	{ "sreg", &SRegHead, &SRegTail },
+};
+
+void InitAutoSegMarkers ()
+{
+	BYTE *module = (BYTE *)GetModuleHandle (NULL);
+	IMAGE_DOS_HEADER *dosHeader = (IMAGE_DOS_HEADER *)module;
+	IMAGE_NT_HEADERS *ntHeaders = (IMAGE_NT_HEADERS *)(module + dosHeader->e_lfanew);
+	IMAGE_SECTION_HEADER *sections = IMAGE_FIRST_SECTION (ntHeaders);
+	int i, j;
+
+	for (i = 0; i < 5; ++i)
+	{
+		for (j = 0; j < ntHeaders->FileHeader.NumberOfSections; ++j)
+		{
+			if (memcmp (sections[j].Name, Stuff[i].name, IMAGE_SIZEOF_SHORT_NAME) == 0)
+			{
+				*Stuff[i].HeadPtr = (REGINFO)(sections[j].VirtualAddress + module - 4);
+				*Stuff[i].TailPtr = (REGINFO)(sections[j].VirtualAddress + module + sections[j].Misc.VirtualSize);
+				break;
+			}
+		}
+	}
+}
+
+#endif