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wine/dlls/kernel/kernel_main.c
Alexandre Julliard de91a8dd0f Implemented NtYieldExecution.
2004-10-11 20:11:01 +00:00

273 lines
8.3 KiB
C
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/*
* Kernel initialization code
*
* Copyright 2000 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
#include <string.h>
#include <sys/stat.h>
#include <signal.h>
#include "windef.h"
#include "winbase.h"
#include "wincon.h"
#include "winreg.h"
#include "winternl.h"
#include "wine/winbase16.h"
#include "wine/library.h"
#include "miscemu.h"
#include "module.h"
#include "thread.h"
#include "stackframe.h"
#include "wincon.h"
#include "toolhelp.h"
#include "kernel_private.h"
#include "console_private.h"
extern void LOCALE_InitRegistry(void);
extern void COMPUTERNAME_Init(void);
extern int __wine_set_signal_handler(unsigned, int (*)(unsigned));
/* memory/environ.c */
extern void ENV_CopyStartupInformation(void);
extern int main_create_flags;
static CRITICAL_SECTION ldt_section;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &ldt_section,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { 0, (DWORD)(__FILE__ ": ldt_section") }
};
static CRITICAL_SECTION ldt_section = { &critsect_debug, -1, 0, 0, 0, 0 };
/***********************************************************************
* locking for LDT routines
*/
static void ldt_lock(void)
{
RtlEnterCriticalSection( &ldt_section );
}
static void ldt_unlock(void)
{
RtlLeaveCriticalSection( &ldt_section );
}
/***********************************************************************
* KERNEL thread initialisation routine
*/
static void thread_attach(void)
{
/* allocate the 16-bit stack (FIXME: should be done lazily) */
HGLOBAL16 hstack = K32WOWGlobalAlloc16( GMEM_FIXED, 0x10000 );
NtCurrentTeb()->stack_sel = GlobalHandleToSel16( hstack );
NtCurrentTeb()->cur_stack = MAKESEGPTR( NtCurrentTeb()->stack_sel,
0x10000 - sizeof(STACK16FRAME) );
}
/***********************************************************************
* KERNEL thread finalisation routine
*/
static void thread_detach(void)
{
/* free the 16-bit stack */
K32WOWGlobalFree16( NtCurrentTeb()->stack_sel );
NtCurrentTeb()->cur_stack = 0;
if (NtCurrentTeb()->Tib.SubSystemTib) TASK_ExitTask();
}
/***********************************************************************
* KERNEL process initialisation routine
*/
static BOOL process_attach(void)
{
HMODULE16 hModule;
SYSTEM_INFO si;
/* FIXME: should probably be done in ntdll */
GetSystemInfo( &si );
NtCurrentTeb()->Peb->NumberOfProcessors = si.dwNumberOfProcessors;
/* Setup registry locale information */
LOCALE_InitRegistry();
/* Initialize 16-bit thunking entry points */
if (!WOWTHUNK_Init()) return FALSE;
/* Initialize DOS memory */
if (!DOSMEM_Init(0)) return FALSE;
/* Setup computer name */
COMPUTERNAME_Init();
/* copy process information from ntdll */
ENV_CopyStartupInformation();
if ((hModule = LoadLibrary16( "krnl386.exe" )) >= 32)
{
/* Initialize special KERNEL entry points */
/* Initialize KERNEL.178 (__WINFLAGS) with the correct flags value */
NE_SetEntryPoint( hModule, 178, GetWinFlags16() );
/* Initialize KERNEL.454/455 (__FLATCS/__FLATDS) */
NE_SetEntryPoint( hModule, 454, wine_get_cs() );
NE_SetEntryPoint( hModule, 455, wine_get_ds() );
/* Initialize KERNEL.THHOOK */
TASK_InstallTHHook(MapSL((SEGPTR)GetProcAddress16( hModule, (LPCSTR)332 )));
/* Initialize the real-mode selector entry points */
#define SET_ENTRY_POINT( num, addr ) \
NE_SetEntryPoint( hModule, (num), GLOBAL_CreateBlock( GMEM_FIXED, \
DOSMEM_MapDosToLinear(addr), 0x10000, hModule, \
WINE_LDT_FLAGS_DATA ))
SET_ENTRY_POINT( 174, 0xa0000 ); /* KERNEL.174: __A000H */
SET_ENTRY_POINT( 181, 0xb0000 ); /* KERNEL.181: __B000H */
SET_ENTRY_POINT( 182, 0xb8000 ); /* KERNEL.182: __B800H */
SET_ENTRY_POINT( 195, 0xc0000 ); /* KERNEL.195: __C000H */
SET_ENTRY_POINT( 179, 0xd0000 ); /* KERNEL.179: __D000H */
SET_ENTRY_POINT( 190, 0xe0000 ); /* KERNEL.190: __E000H */
NE_SetEntryPoint( hModule, 183, DOSMEM_0000H ); /* KERNEL.183: __0000H */
NE_SetEntryPoint( hModule, 173, DOSMEM_BiosSysSeg ); /* KERNEL.173: __ROMBIOS */
NE_SetEntryPoint( hModule, 193, DOSMEM_BiosDataSeg ); /* KERNEL.193: __0040H */
NE_SetEntryPoint( hModule, 194, DOSMEM_BiosSysSeg ); /* KERNEL.194: __F000H */
#undef SET_ENTRY_POINT
/* Force loading of some dlls */
LoadLibrary16( "system.drv" );
}
#ifdef __i386__
/* Create the shared heap for broken win95 native dlls */
if (GetVersion() & 0x80000000) HeapCreate( HEAP_SHARED, 0, 0 );
#endif
/* initialize LDT locking */
wine_ldt_init_locking( ldt_lock, ldt_unlock );
/* finish the process initialisation for console bits, if needed */
__wine_set_signal_handler(SIGINT, CONSOLE_HandleCtrlC);
if (main_create_flags & CREATE_NEW_CONSOLE)
{
HMODULE mod = GetModuleHandleA(0);
if (RtlImageNtHeader(mod)->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
AllocConsole();
}
else if (!(main_create_flags & DETACHED_PROCESS))
{
/* 1/ shall inherit console + handles
* 2/ shall create std handles, if handles are not inherited
* TBD when not using wineserver handles for console handles
*/
}
if (main_create_flags & CREATE_NEW_PROCESS_GROUP)
SetConsoleCtrlHandler(NULL, TRUE);
/* Create 16-bit task */
thread_attach();
TASK_CreateMainTask();
return TRUE;
}
/***********************************************************************
* KERNEL initialisation routine
*/
BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
{
switch(reason)
{
case DLL_PROCESS_ATTACH:
return process_attach();
case DLL_THREAD_ATTACH:
thread_attach();
break;
case DLL_THREAD_DETACH:
thread_detach();
break;
case DLL_PROCESS_DETACH:
WriteOutProfiles16();
break;
}
return TRUE;
}
/***********************************************************************
* EnableDos (KERNEL.41)
* DisableDos (KERNEL.42)
* GetLastDiskChange (KERNEL.98)
* ValidateCodeSegments (KERNEL.100)
* KbdRst (KERNEL.123)
* EnableKernel (KERNEL.124)
* DisableKernel (KERNEL.125)
* ValidateFreeSpaces (KERNEL.200)
* K237 (KERNEL.237)
* BUNNY_351 (KERNEL.351)
* PIGLET_361 (KERNEL.361)
*
* Entry point for kernel functions that do nothing.
*/
LONG WINAPI KERNEL_nop(void)
{
return 0;
}
/***********************************************************************
* MulDiv (KERNEL32.@)
* RETURNS
* Result of multiplication and division
* -1: Overflow occurred or Divisor was 0
*/
INT WINAPI MulDiv( INT nMultiplicand, INT nMultiplier, INT nDivisor)
{
LONGLONG ret;
if (!nDivisor) return -1;
/* We want to deal with a positive divisor to simplify the logic. */
if (nDivisor < 0)
{
nMultiplicand = - nMultiplicand;
nDivisor = -nDivisor;
}
/* If the result is positive, we "add" to round. else, we subtract to round. */
if ( ( (nMultiplicand < 0) && (nMultiplier < 0) ) ||
( (nMultiplicand >= 0) && (nMultiplier >= 0) ) )
ret = (((LONGLONG)nMultiplicand * nMultiplier) + (nDivisor/2)) / nDivisor;
else
ret = (((LONGLONG)nMultiplicand * nMultiplier) - (nDivisor/2)) / nDivisor;
if ((ret > 2147483647) || (ret < -2147483647)) return -1;
return ret;
}
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