2 * Helper functions for ntdll
4 * Copyright 2000 Juergen Schmied
5 * Copyright 2010 Marcus Meissner
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 #ifdef HAVE_SYS_UTSNAME_H
27 #include <sys/utsname.h>
30 #include "wine/library.h"
31 #include "wine/debug.h"
32 #include "ntdll_misc.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
36 #if defined(__GNUC__) && defined(__i386__)
37 #define DO_FPU(x,y) __asm__ __volatile__( x " %0;fwait" : "=m" (y) : )
38 #define POP_FPU(x) DO_FPU("fstpl",x)
41 LPCSTR debugstr_ObjectAttributes(const OBJECT_ATTRIBUTES *oa)
43 if (!oa) return "<null>";
44 return wine_dbg_sprintf( "{name=%s, attr=0x%08x, hRoot=%p, sd=%p}\n",
45 debugstr_us(oa->ObjectName), oa->Attributes,
46 oa->RootDirectory, oa->SecurityDescriptor );
49 LPCSTR debugstr_us( const UNICODE_STRING *us )
51 if (!us) return "<null>";
52 return debugstr_wn(us->Buffer, us->Length / sizeof(WCHAR));
55 /*********************************************************************
61 #if defined(__GNUC__) && defined(__i386__)
62 LONGLONG CDECL NTDLL__ftol(void)
64 /* don't just do DO_FPU("fistp",retval), because the rounding
65 * mode must also be set to "round towards zero"... */
70 #endif /* defined(__GNUC__) && defined(__i386__) */
72 /*********************************************************************
76 * Should be register function
80 #if !defined(__GNUC__) && defined(__i386__)
81 LONGLONG CDECL NTDLL__ftol(double fl)
83 FIXME("should be register function\n");
86 #endif /* !defined(__GNUC__) && defined(__i386__) */
88 /*********************************************************************
93 #if defined(__GNUC__) && defined(__i386__)
94 double CDECL NTDLL__CIpow(void)
101 #endif /* defined(__GNUC__) && defined(__i386__) */
104 /*********************************************************************
108 * Should be register function
113 #if !defined(__GNUC__) && defined(__i386__)
114 double CDECL NTDLL__CIpow(double x,double y)
116 FIXME("should be register function\n");
119 #endif /* !defined(__GNUC__) && defined(__i386__) */
121 /*********************************************************************
122 * wine_get_version (NTDLL.@)
124 const char * CDECL NTDLL_wine_get_version(void)
126 return wine_get_version();
129 /*********************************************************************
130 * wine_get_build_id (NTDLL.@)
132 const char * CDECL NTDLL_wine_get_build_id(void)
134 return wine_get_build_id();
137 /*********************************************************************
138 * wine_get_host_version (NTDLL.@)
140 void CDECL NTDLL_wine_get_host_version( const char **sysname, const char **release )
142 #ifdef HAVE_SYS_UTSNAME_H
143 static struct utsname buf;
144 static int init_done;
151 if (sysname) *sysname = buf.sysname;
152 if (release) *release = buf.release;
154 if (sysname) *sysname = "";
155 if (release) *release = "";
159 /*********************************************************************
162 int CDECL NTDLL_abs( int i )
167 /*********************************************************************
170 LONG CDECL NTDLL_labs( LONG i )
175 /*********************************************************************
178 double CDECL NTDLL_atan( double d )
183 /*********************************************************************
186 double CDECL NTDLL_ceil( double d )
191 /*********************************************************************
194 double CDECL NTDLL_cos( double d )
199 /*********************************************************************
202 double CDECL NTDLL_fabs( double d )
207 /*********************************************************************
210 double CDECL NTDLL_floor( double d )
215 /*********************************************************************
218 double CDECL NTDLL_log( double d )
223 /*********************************************************************
226 double CDECL NTDLL_pow( double x, double y )
231 /*********************************************************************
234 double CDECL NTDLL_sin( double d )
239 /*********************************************************************
242 double CDECL NTDLL_sqrt( double d )
247 /*********************************************************************
250 double CDECL NTDLL_tan( double d )
256 /* Merge Sort. Algorithm taken from http://www.linux-related.de/index.html?/coding/sort/sort_merge.htm */
258 NTDLL_mergesort( void *arr, void *barr, int elemsize, int(__cdecl *compar)(const void *, const void *),
259 int left, int right )
264 NTDLL_mergesort( arr, barr, elemsize, compar, left, m);
265 NTDLL_mergesort( arr, barr, elemsize, compar, m+1, right);
267 #define X(a,i) ((char*)a+elemsize*(i))
268 for (i=m+1; i>left; i--)
269 memcpy (X(barr,(i-1)),X(arr,(i-1)),elemsize);
270 for (j=m; j<right; j++)
271 memcpy (X(barr,(right+m-j)),X(arr,(j+1)),elemsize);
273 for (k=left; k<=right; k++) {
274 /*arr[k]=(barr[i]<barr[j])?barr[i++]:barr[j--];*/
275 if (i != j && compar(X(barr,i),X(barr,j))<0) {
276 memcpy(X(arr,k),X(barr,i),elemsize);
279 memcpy(X(arr,k),X(barr,j),elemsize);
287 /*********************************************************************
290 void __cdecl NTDLL_qsort( void *base, size_t nmemb, size_t size,
291 int(__cdecl *compar)(const void *, const void *) )
293 void *secondarr = RtlAllocateHeap (GetProcessHeap(), 0, nmemb*size);
294 NTDLL_mergesort( base, secondarr, size, compar, 0, nmemb-1 );
295 RtlFreeHeap (GetProcessHeap(),0, secondarr);
298 /*********************************************************************
302 NTDLL_bsearch( const void *key, const void *base, size_t nmemb,
303 size_t size, int (__cdecl *compar)(const void *, const void *) )
306 ssize_t max = nmemb - 1;
310 ssize_t cursor = (min + max) / 2;
311 int ret = compar(key,(const char *)base+(cursor*size));
313 return (char*)base+(cursor*size);
323 /*********************************************************************
326 void * __cdecl _lfind( const void *key, const void *base, unsigned int *nmemb,
327 size_t size, int(__cdecl *compar)(const void *, const void *) )
329 size_t i, n = *nmemb;
332 if (!compar(key,(char*)base+(size*i)))
333 return (char*)base+(size*i);