mirror of
https://github.com/reactos/reactos.git
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150f721273
First batch of changes to implement a UEFI version of freeldr: - Compile freeldr as EFI binary on top of the existing loader. - Stub out various functions so we can create a UEFI machine-type in freeldr. - Implement all of the video output functions so we can display a pretty freeldr BSoD :)
129 lines
3.2 KiB
C
129 lines
3.2 KiB
C
/*
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* FreeLoader
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* Copyright (C) 1998-2003 Brian Palmer <brianp@sginet.com>
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* INCLUDES *******************************************************************/
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#include <freeldr.h>
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#include <debug.h>
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DBG_DEFAULT_CHANNEL(WARNING);
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/* GLOBALS ********************************************************************/
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#define TOSTRING_(X) #X
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#define TOSTRING(X) TOSTRING_(X)
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const PCSTR FrLdrVersionString =
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#if (FREELOADER_PATCH_VERSION == 0)
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"FreeLoader v" TOSTRING(FREELOADER_MAJOR_VERSION) "." TOSTRING(FREELOADER_MINOR_VERSION);
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#else
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"FreeLoader v" TOSTRING(FREELOADER_MAJOR_VERSION) "." TOSTRING(FREELOADER_MINOR_VERSION) "." TOSTRING(FREELOADER_PATCH_VERSION);
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#endif
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CCHAR FrLdrBootPath[MAX_PATH] = "";
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/* FUNCTIONS ******************************************************************/
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VOID __cdecl BootMain(IN PCCH CmdLine)
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{
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CmdLineParse(CmdLine);
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/* Debugger pre-initialization */
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DebugInit(0);
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MachInit(CmdLine);
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TRACE("BootMain() called.\n");
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#ifndef UEFIBOOT
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/* Check if the CPU is new enough */
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FrLdrCheckCpuCompatibility(); // FIXME: Should be done inside MachInit!
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#endif
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/* UI pre-initialization */
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if (!UiInitialize(FALSE))
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{
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UiMessageBoxCritical("Unable to initialize UI.");
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goto Quit;
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}
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/* Initialize memory manager */
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if (!MmInitializeMemoryManager())
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{
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UiMessageBoxCritical("Unable to initialize memory manager.");
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goto Quit;
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}
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/* Initialize I/O subsystem */
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FsInit();
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RunLoader();
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Quit:
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/* If we reach this point, something went wrong before, therefore reboot */
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Reboot();
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}
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// We need to emulate these, because the original ones don't work in freeldr
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// These functions are here, because they need to be in the main compilation unit
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// and cannot be in a library.
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int __cdecl wctomb(char *mbchar, wchar_t wchar)
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{
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*mbchar = (char)wchar;
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return 1;
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}
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int __cdecl mbtowc(wchar_t *wchar, const char *mbchar, size_t count)
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{
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*wchar = (wchar_t)*mbchar;
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return 1;
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}
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// The wctype table is 144 KB, too much for poor freeldr
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int __cdecl iswctype(wint_t wc, wctype_t wctypeFlags)
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{
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return _isctype((char)wc, wctypeFlags);
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}
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#ifdef _MSC_VER
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#pragma warning(disable:4164)
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#pragma function(pow)
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#pragma function(log)
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#pragma function(log10)
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#endif
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// Stubs to avoid pulling in data from CRT
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double pow(double x, double y)
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{
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__debugbreak();
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return 0.0;
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}
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double log(double x)
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{
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__debugbreak();
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return 0.0;
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}
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double log10(double x)
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{
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__debugbreak();
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return 0.0;
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}
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