xref: /reactos/boot/freeldr/freeldr/freeldr.c (revision 98e8827a)
1 /*
2  *  FreeLoader
3  *  Copyright (C) 1998-2003  Brian Palmer  <brianp@sginet.com>
4  *
5  *  This program is free software; you can redistribute it and/or modify
6  *  it under the terms of the GNU General Public License as published by
7  *  the Free Software Foundation; either version 2 of the License, or
8  *  (at your option) any later version.
9  *
10  *  This program is distributed in the hope that it will be useful,
11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  *  GNU General Public License for more details.
14  *
15  *  You should have received a copy of the GNU General Public License along
16  *  with this program; if not, write to the Free Software Foundation, Inc.,
17  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 /* INCLUDES *******************************************************************/
21 
22 #include <freeldr.h>
23 
24 #include <debug.h>
25 DBG_DEFAULT_CHANNEL(WARNING);
26 
27 /* GLOBALS ********************************************************************/
28 
29 #define TOSTRING_(X) #X
30 #define TOSTRING(X) TOSTRING_(X)
31 
32 const PCSTR FrLdrVersionString =
33 #if (FREELOADER_PATCH_VERSION == 0)
34     "FreeLoader v" TOSTRING(FREELOADER_MAJOR_VERSION) "." TOSTRING(FREELOADER_MINOR_VERSION);
35 #else
36     "FreeLoader v" TOSTRING(FREELOADER_MAJOR_VERSION) "." TOSTRING(FREELOADER_MINOR_VERSION) "." TOSTRING(FREELOADER_PATCH_VERSION);
37 #endif
38 
39 CCHAR FrLdrBootPath[MAX_PATH] = "";
40 
41 /* FUNCTIONS ******************************************************************/
42 
43 VOID __cdecl BootMain(IN PCCH CmdLine)
44 {
45     CmdLineParse(CmdLine);
46 
47     /* Debugger pre-initialization */
48     DebugInit(0);
49 
50     MachInit(CmdLine);
51 
52     TRACE("BootMain() called.\n");
53 
54     /* Check if the CPU is new enough */
55     FrLdrCheckCpuCompatibility(); // FIXME: Should be done inside MachInit!
56 
57     /* UI pre-initialization */
58     if (!UiInitialize(FALSE))
59     {
60         UiMessageBoxCritical("Unable to initialize UI.");
61         goto Quit;
62     }
63 
64     /* Initialize memory manager */
65     if (!MmInitializeMemoryManager())
66     {
67         UiMessageBoxCritical("Unable to initialize memory manager.");
68         goto Quit;
69     }
70 
71     /* Initialize I/O subsystem */
72     FsInit();
73 
74     RunLoader();
75 
76 Quit:
77     /* If we reach this point, something went wrong before, therefore reboot */
78     Reboot();
79 }
80 
81 // We need to emulate these, because the original ones don't work in freeldr
82 // These functions are here, because they need to be in the main compilation unit
83 // and cannot be in a library.
84 int __cdecl wctomb(char *mbchar, wchar_t wchar)
85 {
86     *mbchar = (char)wchar;
87     return 1;
88 }
89 
90 int __cdecl mbtowc(wchar_t *wchar, const char *mbchar, size_t count)
91 {
92     *wchar = (wchar_t)*mbchar;
93     return 1;
94 }
95 
96 // The wctype table is 144 KB, too much for poor freeldr
97 int __cdecl iswctype(wint_t wc, wctype_t wctypeFlags)
98 {
99     return _isctype((char)wc, wctypeFlags);
100 }
101