mirror of
https://github.com/ZDoom/Raze.git
synced 2024-12-11 13:21:49 +00:00
07eeba88fa
It appeared that getsectbyname() returns address stored in executable header as is, i.e. without adjusting it for ASLR
142 lines
5.1 KiB
C++
142 lines
5.1 KiB
C++
/*
|
|
** autostart.cpp
|
|
** This file contains the heads 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.
|
|
**---------------------------------------------------------------------------
|
|
**
|
|
** 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 PClass 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"
|
|
|
|
#ifdef _WIN32
|
|
#include <windows.h>
|
|
#include <dbghelp.h>
|
|
#elif defined __MACH__
|
|
#include <mach-o/getsect.h>
|
|
#include <mach-o/ldsyms.h>
|
|
#endif
|
|
|
|
|
|
#if defined _WIN32 || defined __MACH__
|
|
|
|
#define AUTOSEG_VARIABLE(name, autoseg) namespace AutoSegs{ FAutoSeg name{ AUTOSEG_STR(autoseg) }; }
|
|
|
|
#else // Linux and others with ELF executables
|
|
|
|
#define AUTOSEG_START(name) __start_##name
|
|
#define AUTOSEG_STOP(name) __stop_##name
|
|
#define AUTOSEG_VARIABLE(name, autoseg) \
|
|
void* name##DummyPointer __attribute__((section(AUTOSEG_STR(autoseg)))) __attribute__((used)); \
|
|
extern void* AUTOSEG_START(autoseg); \
|
|
extern void* AUTOSEG_STOP(autoseg); \
|
|
namespace AutoSegs { FAutoSeg name{ &AUTOSEG_START(autoseg), &AUTOSEG_STOP(autoseg) }; }
|
|
|
|
#endif
|
|
|
|
AUTOSEG_VARIABLE(ActionFunctons, AUTOSEG_AREG)
|
|
AUTOSEG_VARIABLE(TypeInfos, AUTOSEG_CREG)
|
|
AUTOSEG_VARIABLE(ClassFields, AUTOSEG_FREG)
|
|
AUTOSEG_VARIABLE(Properties, AUTOSEG_GREG)
|
|
AUTOSEG_VARIABLE(MapInfoOptions, AUTOSEG_YREG)
|
|
|
|
#undef AUTOSEG_VARIABLE
|
|
#undef AUTOSEG_STOP
|
|
#undef AUTOSEG_START
|
|
|
|
|
|
void FAutoSeg::Initialize()
|
|
{
|
|
#ifdef _WIN32
|
|
|
|
const HMODULE selfModule = GetModuleHandle(nullptr);
|
|
const SIZE_T baseAddress = reinterpret_cast<SIZE_T>(selfModule);
|
|
|
|
const PIMAGE_NT_HEADERS header = ImageNtHeader(selfModule);
|
|
PIMAGE_SECTION_HEADER section = IMAGE_FIRST_SECTION(header);
|
|
|
|
for (WORD i = 0; i < header->FileHeader.NumberOfSections; ++i, ++section)
|
|
{
|
|
if (strncmp(reinterpret_cast<char *>(section->Name), name, IMAGE_SIZEOF_SHORT_NAME) == 0)
|
|
{
|
|
begin = reinterpret_cast<void **>(baseAddress + section->VirtualAddress);
|
|
end = reinterpret_cast<void **>(baseAddress + section->VirtualAddress + section->SizeOfRawData);
|
|
break;
|
|
}
|
|
}
|
|
|
|
#elif defined __MACH__
|
|
|
|
unsigned long size;
|
|
|
|
if (uint8_t *const section = getsectiondata(&_mh_execute_header, AUTOSEG_MACH_SEGMENT, name, &size))
|
|
{
|
|
begin = reinterpret_cast<void **>(section);
|
|
end = reinterpret_cast<void **>(section + size);
|
|
}
|
|
|
|
#else // Linux and others with ELF executables
|
|
|
|
assert(false);
|
|
|
|
#endif
|
|
}
|
|
|
|
|
|
#if defined(_MSC_VER)
|
|
|
|
// We want visual styles support under XP
|
|
#if defined _M_IX86
|
|
|
|
#pragma comment(linker,"/manifestdependency:\"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='x86' publicKeyToken='6595b64144ccf1df' language='*'\"")
|
|
|
|
#elif defined _M_IA64
|
|
|
|
#pragma comment(linker,"/manifestdependency:\"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='ia64' publicKeyToken='6595b64144ccf1df' language='*'\"")
|
|
|
|
#elif defined _M_X64
|
|
|
|
#pragma comment(linker,"/manifestdependency:\"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='amd64' publicKeyToken='6595b64144ccf1df' language='*'\"")
|
|
|
|
#else
|
|
|
|
#pragma comment(linker,"/manifestdependency:\"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"")
|
|
|
|
#endif
|
|
|
|
#endif
|