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Sweden-Number/dlls/kernel32/kernel_main.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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
#include <string.h>
#include <signal.h>
#include "windef.h"
#include "winbase.h"
#include "wincon.h"
#include "winternl.h"
#include "wownt32.h"
#include "wine/winbase16.h"
#include "wine/library.h"
#include "toolhelp.h"
#include "kernel_private.h"
#include "kernel16_private.h"
#include "console_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(process);
extern int __wine_set_signal_handler(unsigned, int (*)(unsigned));
static ULONGLONG server_start_time;
/***********************************************************************
* KERNEL thread initialisation routine
*/
static void thread_attach(void)
{
/* allocate the 16-bit stack (FIXME: should be done lazily) */
HGLOBAL16 hstack = WOWGlobalAlloc16( GMEM_FIXED, 0x10000 );
kernel_get_thread_data()->stack_sel = GlobalHandleToSel16( hstack );
NtCurrentTeb()->WOW32Reserved = (void *)MAKESEGPTR( kernel_get_thread_data()->stack_sel,
0x10000 - sizeof(STACK16FRAME) );
memset( (char *)GlobalLock16(hstack) + 0x10000 - sizeof(STACK16FRAME), 0, sizeof(STACK16FRAME) );
}
/***********************************************************************
* KERNEL thread finalisation routine
*/
static void thread_detach(void)
{
/* free the 16-bit stack */
WOWGlobalFree16( kernel_get_thread_data()->stack_sel );
NtCurrentTeb()->WOW32Reserved = 0;
if (NtCurrentTeb()->Tib.SubSystemTib) TASK_ExitTask();
}
/***********************************************************************
* set_entry_point
*/
static void set_entry_point( HMODULE module, const char *name, DWORD rva )
{
IMAGE_EXPORT_DIRECTORY *exports;
DWORD exp_size;
if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
{
DWORD *functions = (DWORD *)((char *)module + exports->AddressOfFunctions);
const WORD *ordinals = (const WORD *)((const char *)module + exports->AddressOfNameOrdinals);
const DWORD *names = (const DWORD *)((const char *)module + exports->AddressOfNames);
int min = 0, max = exports->NumberOfNames - 1;
while (min <= max)
{
int res, pos = (min + max) / 2;
const char *ename = (const char *)module + names[pos];
if (!(res = strcmp( ename, name )))
{
WORD ordinal = ordinals[pos];
assert( ordinal < exports->NumberOfFunctions );
TRACE( "setting %s at %p to %08x\n", name, &functions[ordinal], rva );
functions[ordinal] = rva;
return;
}
if (res > 0) max = pos - 1;
else min = pos + 1;
}
}
}
/***********************************************************************
* KERNEL process initialisation routine
*/
static BOOL process_attach( HMODULE module )
{
SYSTEM_INFO si;
SYSTEM_TIMEOFDAY_INFORMATION ti;
RTL_USER_PROCESS_PARAMETERS *params = NtCurrentTeb()->Peb->ProcessParameters;
/* FIXME: should probably be done in ntdll */
GetSystemInfo( &si );
NtCurrentTeb()->Peb->NumberOfProcessors = si.dwNumberOfProcessors;
NtQuerySystemInformation( SystemTimeOfDayInformation, &ti, sizeof(ti), NULL );
server_start_time = ti.liKeBootTime.QuadPart;
/* Setup registry locale information */
LOCALE_InitRegistry();
/* Setup computer name */
COMPUTERNAME_Init();
/* convert value from server:
* + 0 => INVALID_HANDLE_VALUE
* + console handle needs to be mapped
*/
if (!params->hStdInput)
params->hStdInput = INVALID_HANDLE_VALUE;
else if (VerifyConsoleIoHandle(console_handle_map(params->hStdInput)))
params->hStdInput = console_handle_map(params->hStdInput);
if (!params->hStdOutput)
params->hStdOutput = INVALID_HANDLE_VALUE;
else if (VerifyConsoleIoHandle(console_handle_map(params->hStdOutput)))
params->hStdOutput = console_handle_map(params->hStdOutput);
if (!params->hStdError)
params->hStdError = INVALID_HANDLE_VALUE;
else if (VerifyConsoleIoHandle(console_handle_map(params->hStdError)))
params->hStdError = console_handle_map(params->hStdError);
/* copy process information from ntdll */
ENV_CopyStartupInformation();
if (!(GetVersion() & 0x80000000))
{
/* Securom checks for this one when version is NT */
set_entry_point( module, "FT_Thunk", 0 );
}
#ifdef __i386__
else
{
/* create the shared heap for broken win95 native dlls */
HeapCreate( HEAP_SHARED, 0, 0 );
/* setup emulation of protected instructions from 32-bit code */
RtlAddVectoredExceptionHandler( TRUE, INSTR_vectored_handler );
}
#endif
/* finish the process initialisation for console bits, if needed */
__wine_set_signal_handler(SIGINT, CONSOLE_HandleCtrlC);
if (params->ConsoleHandle == (HANDLE)1) /* FIXME */
{
HMODULE mod = GetModuleHandleA(0);
if (RtlImageNtHeader(mod)->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
AllocConsole();
}
/* else TODO for DETACHED_PROCESS:
* 1/ inherit console + handles
* 2/ create std handles, if handles are not inherited
* TBD when not using wineserver handles for console handles
*/
/* Create 16-bit task */
LoadLibrary16( "krnl386.exe" );
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( hinst );
case DLL_THREAD_ATTACH:
thread_attach();
break;
case DLL_THREAD_DETACH:
thread_detach();
break;
case DLL_PROCESS_DETACH:
WriteOutProfiles16();
break;
}
return TRUE;
}
/***********************************************************************
* 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;
}
/******************************************************************************
* GetTickCount64 (KERNEL32.@)
*/
ULONGLONG WINAPI GetTickCount64(void)
{
LARGE_INTEGER now;
NtQuerySystemTime( &now );
return (now.QuadPart - server_start_time) / 10000;
}
/***********************************************************************
* GetTickCount (KERNEL32.@)
*
* Get the number of milliseconds the system has been running.
*
* PARAMS
* None.
*
* RETURNS
* The current tick count.
*
* NOTES
* -The value returned will wrap arounf every 2^32 milliseconds.
* -Under Windows, tick 0 is the moment at which the system is rebooted.
* Under Wine, tick 0 begins at the moment the wineserver process is started,
*/
DWORD WINAPI GetTickCount(void)
{
return GetTickCount64();
}
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