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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "wine/port.h"
35 #include "wine/library.h"
36 #include "kernel_private.h"
37 #include "console_private.h"
38 #include "wine/debug.h"
40 WINE_DEFAULT_DEBUG_CHANNEL(process);
42 extern int CDECL __wine_set_signal_handler(unsigned, int (*)(unsigned));
44 /***********************************************************************
47 static void set_entry_point( HMODULE module, const char *name, DWORD rva )
49 IMAGE_EXPORT_DIRECTORY *exports;
52 if ((exports = RtlImageDirectoryEntryToData( module, TRUE,
53 IMAGE_DIRECTORY_ENTRY_EXPORT, &exp_size )))
55 DWORD *functions = (DWORD *)((char *)module + exports->AddressOfFunctions);
56 const WORD *ordinals = (const WORD *)((const char *)module + exports->AddressOfNameOrdinals);
57 const DWORD *names = (const DWORD *)((const char *)module + exports->AddressOfNames);
58 int min = 0, max = exports->NumberOfNames - 1;
62 int res, pos = (min + max) / 2;
63 const char *ename = (const char *)module + names[pos];
64 if (!(res = strcmp( ename, name )))
66 WORD ordinal = ordinals[pos];
67 assert( ordinal < exports->NumberOfFunctions );
68 TRACE( "setting %s at %p to %08x\n", name, &functions[ordinal], rva );
69 functions[ordinal] = rva;
72 if (res > 0) max = pos - 1;
79 /***********************************************************************
80 * KERNEL process initialisation routine
82 static BOOL process_attach( HMODULE module )
84 RTL_USER_PROCESS_PARAMETERS *params = NtCurrentTeb()->Peb->ProcessParameters;
86 /* Setup registry locale information */
87 LOCALE_InitRegistry();
89 /* Setup computer name */
94 /* copy process information from ntdll */
95 ENV_CopyStartupInformation();
97 if (!(GetVersion() & 0x80000000))
99 /* Securom checks for this one when version is NT */
100 set_entry_point( module, "FT_Thunk", 0 );
102 else LoadLibraryA( "krnl386.exe16" );
104 /* finish the process initialisation for console bits, if needed */
105 __wine_set_signal_handler(SIGINT, CONSOLE_HandleCtrlC);
107 if (params->ConsoleHandle == KERNEL32_CONSOLE_ALLOC)
109 HMODULE mod = GetModuleHandleA(0);
110 if (RtlImageNtHeader(mod)->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI)
113 /* else TODO for DETACHED_PROCESS:
114 * 1/ inherit console + handles
115 * 2/ create std handles, if handles are not inherited
116 * TBD when not using wineserver handles for console handles
122 /***********************************************************************
123 * KERNEL initialisation routine
125 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
129 case DLL_PROCESS_ATTACH:
130 DisableThreadLibraryCalls( hinst );
131 return process_attach( hinst );
132 case DLL_PROCESS_DETACH:
133 WritePrivateProfileSectionW( NULL, NULL, NULL );
140 /***********************************************************************
141 * MulDiv (KERNEL32.@)
143 * Result of multiplication and division
144 * -1: Overflow occurred or Divisor was 0
146 INT WINAPI MulDiv( INT nMultiplicand, INT nMultiplier, INT nDivisor)
150 if (!nDivisor) return -1;
152 /* We want to deal with a positive divisor to simplify the logic. */
155 nMultiplicand = - nMultiplicand;
156 nDivisor = -nDivisor;
159 /* If the result is positive, we "add" to round. else, we subtract to round. */
160 if ( ( (nMultiplicand < 0) && (nMultiplier < 0) ) ||
161 ( (nMultiplicand >= 0) && (nMultiplier >= 0) ) )
162 ret = (((LONGLONG)nMultiplicand * nMultiplier) + (nDivisor/2)) / nDivisor;
164 ret = (((LONGLONG)nMultiplicand * nMultiplier) - (nDivisor/2)) / nDivisor;
166 if ((ret > 2147483647) || (ret < -2147483647)) return -1;
171 /******************************************************************************
172 * GetTickCount64 (KERNEL32.@)
174 ULONGLONG WINAPI GetTickCount64(void)
176 LARGE_INTEGER counter, frequency;
178 NtQueryPerformanceCounter( &counter, &frequency );
179 return counter.QuadPart * 1000 / frequency.QuadPart;
183 /***********************************************************************
184 * GetTickCount (KERNEL32.@)
186 * Get the number of milliseconds the system has been running.
192 * The current tick count.
195 * The value returned will wrap around every 2^32 milliseconds.
197 DWORD WINAPI GetTickCount(void)
199 return GetTickCount64();
202 /******************************************************************************
203 * GetSystemRegistryQuota (KERNEL32.@)
205 BOOL WINAPI GetSystemRegistryQuota(PDWORD pdwQuotaAllowed, PDWORD pdwQuotaUsed)
207 FIXME("(%p, %p) faking reported quota values\n", pdwQuotaAllowed, pdwQuotaUsed);
210 *pdwQuotaAllowed = 2 * 1000 * 1000 * 1000; /* 2 GB */
213 *pdwQuotaUsed = 100 * 1000 * 1000; /* 100 MB */