2 * Kernel initialization code
4 * Copyright 2000 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
37 #include "wine/winbase16.h"
38 #include "wine/library.h"
43 #include "stackframe.h"
46 #include "kernel_private.h"
47 #include "console_private.h"
49 extern void LOCALE_InitRegistry(void);
50 extern void COMPUTERNAME_Init(void);
52 extern int __wine_set_signal_handler(unsigned, int (*)(unsigned));
53 /* memory/environ.c */
54 extern void ENV_CopyStartupInformation(void);
56 extern int main_create_flags;
58 static CRITICAL_SECTION ldt_section;
59 static CRITICAL_SECTION_DEBUG critsect_debug =
62 { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
63 0, 0, { 0, (DWORD)(__FILE__ ": ldt_section") }
65 static CRITICAL_SECTION ldt_section = { &critsect_debug, -1, 0, 0, 0, 0 };
67 /***********************************************************************
68 * locking for LDT routines
70 static void ldt_lock(void)
72 RtlEnterCriticalSection( &ldt_section );
75 static void ldt_unlock(void)
77 RtlLeaveCriticalSection( &ldt_section );
81 /***********************************************************************
82 * KERNEL thread initialisation routine
84 static void thread_attach(void)
86 /* allocate the 16-bit stack (FIXME: should be done lazily) */
87 HGLOBAL16 hstack = K32WOWGlobalAlloc16( GMEM_FIXED, 0x10000 );
88 NtCurrentTeb()->stack_sel = GlobalHandleToSel16( hstack );
89 NtCurrentTeb()->cur_stack = MAKESEGPTR( NtCurrentTeb()->stack_sel,
90 0x10000 - sizeof(STACK16FRAME) );
94 /***********************************************************************
95 * KERNEL thread finalisation routine
97 static void thread_detach(void)
99 /* free the 16-bit stack */
100 K32WOWGlobalFree16( NtCurrentTeb()->stack_sel );
101 NtCurrentTeb()->cur_stack = 0;
102 if (NtCurrentTeb()->Tib.SubSystemTib) TASK_ExitTask();
106 /***********************************************************************
107 * KERNEL process initialisation routine
109 static BOOL process_attach(void)
113 /* Setup registry locale information */
114 LOCALE_InitRegistry();
116 /* Initialize 16-bit thunking entry points */
117 if (!WOWTHUNK_Init()) return FALSE;
119 /* Initialize DOS memory */
120 if (!DOSMEM_Init(0)) return FALSE;
122 /* Setup computer name */
125 /* copy process information from ntdll */
126 ENV_CopyStartupInformation();
128 if ((hModule = LoadLibrary16( "krnl386.exe" )) >= 32)
130 /* Initialize special KERNEL entry points */
132 /* Initialize KERNEL.178 (__WINFLAGS) with the correct flags value */
133 NE_SetEntryPoint( hModule, 178, GetWinFlags16() );
135 /* Initialize KERNEL.454/455 (__FLATCS/__FLATDS) */
136 NE_SetEntryPoint( hModule, 454, wine_get_cs() );
137 NE_SetEntryPoint( hModule, 455, wine_get_ds() );
139 /* Initialize KERNEL.THHOOK */
140 TASK_InstallTHHook(MapSL((SEGPTR)GetProcAddress16( hModule, (LPCSTR)332 )));
142 /* Initialize the real-mode selector entry points */
143 #define SET_ENTRY_POINT( num, addr ) \
144 NE_SetEntryPoint( hModule, (num), GLOBAL_CreateBlock( GMEM_FIXED, \
145 DOSMEM_MapDosToLinear(addr), 0x10000, hModule, \
146 WINE_LDT_FLAGS_DATA ))
148 SET_ENTRY_POINT( 174, 0xa0000 ); /* KERNEL.174: __A000H */
149 SET_ENTRY_POINT( 181, 0xb0000 ); /* KERNEL.181: __B000H */
150 SET_ENTRY_POINT( 182, 0xb8000 ); /* KERNEL.182: __B800H */
151 SET_ENTRY_POINT( 195, 0xc0000 ); /* KERNEL.195: __C000H */
152 SET_ENTRY_POINT( 179, 0xd0000 ); /* KERNEL.179: __D000H */
153 SET_ENTRY_POINT( 190, 0xe0000 ); /* KERNEL.190: __E000H */
154 NE_SetEntryPoint( hModule, 183, DOSMEM_0000H ); /* KERNEL.183: __0000H */
155 NE_SetEntryPoint( hModule, 173, DOSMEM_BiosSysSeg ); /* KERNEL.173: __ROMBIOS */
156 NE_SetEntryPoint( hModule, 193, DOSMEM_BiosDataSeg ); /* KERNEL.193: __0040H */
157 NE_SetEntryPoint( hModule, 194, DOSMEM_BiosSysSeg ); /* KERNEL.194: __F000H */
158 #undef SET_ENTRY_POINT
160 /* Force loading of some dlls */
161 LoadLibrary16( "system.drv" );
164 /* Create the shared heap for broken win95 native dlls */
165 HeapCreate( HEAP_SHARED, 0, 0 );
167 /* initialize LDT locking */
168 wine_ldt_init_locking( ldt_lock, ldt_unlock );
170 /* finish the process initialisation for console bits, if needed */
171 __wine_set_signal_handler(SIGINT, CONSOLE_HandleCtrlC);
173 if (main_create_flags & CREATE_NEW_CONSOLE)
175 HMODULE mod = GetModuleHandleA(0);
176 if (RtlImageNtHeader(mod)->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
179 else if (!(main_create_flags & DETACHED_PROCESS))
181 /* 1/ shall inherit console + handles
182 * 2/ shall create std handles, if handles are not inherited
183 * TBD when not using wineserver handles for console handles
187 if (main_create_flags & CREATE_NEW_PROCESS_GROUP)
188 SetConsoleCtrlHandler(NULL, TRUE);
190 /* Create 16-bit task */
192 TASK_CreateMainTask();
196 /***********************************************************************
197 * KERNEL initialisation routine
199 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
203 case DLL_PROCESS_ATTACH:
204 return process_attach();
205 case DLL_THREAD_ATTACH:
208 case DLL_THREAD_DETACH:
211 case DLL_PROCESS_DETACH:
212 WriteOutProfiles16();
218 /***********************************************************************
219 * EnableDos (KERNEL.41)
220 * DisableDos (KERNEL.42)
221 * GetLastDiskChange (KERNEL.98)
222 * ValidateCodeSegments (KERNEL.100)
223 * KbdRst (KERNEL.123)
224 * EnableKernel (KERNEL.124)
225 * DisableKernel (KERNEL.125)
226 * ValidateFreeSpaces (KERNEL.200)
228 * BUNNY_351 (KERNEL.351)
229 * PIGLET_361 (KERNEL.361)
231 * Entry point for kernel functions that do nothing.
233 LONG WINAPI KERNEL_nop(void)
238 /***********************************************************************
239 * SwitchToThread (KERNEL32.@)
242 BOOL WINAPI SwitchToThread(void)