dlls/ntdll/misc.c

   1 /*
   2  * Helper functions for ntdll
   3  */
   4 #include <time.h>
   5 #include <math.h>
   6
   7 #include "config.h"
   8
   9 #include "debugtools.h"
  10 #include "ntdll_misc.h"
  11
  12 DEFAULT_DEBUG_CHANNEL(ntdll);
  13
  14 #if defined(__GNUC__) && defined(__i386__)
  15 #define USING_REAL_FPU
  16 #define DO_FPU(x,y) __asm__ __volatile__( x " %0;fwait" : "=m" (y) : )
  17 #define POP_FPU(x) DO_FPU("fstpl",x)
  18 #endif
  19
  20 void dump_ObjectAttributes (const OBJECT_ATTRIBUTES *oa)
  21 {
  22         if (oa)
  23           TRACE("%p:(name=%s, attr=0x%08lx, hRoot=0x%08x, sd=%p) \n",
  24             oa, debugstr_us(oa->ObjectName),
  25             oa->Attributes, oa->RootDirectory, oa->SecurityDescriptor);
  26 }
  27
  28 void dump_UnicodeString(const UNICODE_STRING *us, BOOLEAN showstring)
  29 {
  30         if (us)
  31         {
  32           if (showstring)
  33             TRACE("%p %p(%s) (%u %u)\n", us, us->Buffer, debugstr_us(us), us->Length, us->MaximumLength);
  34           else
  35             TRACE("%p %p(<OUT>) (%u %u)\n", us, us->Buffer, us->Length, us->MaximumLength);
  36         }
  37 }
  38
  39 LPCSTR debugstr_as( const STRING *str )
  40 {
  41     if (!str) return "<null>";
  42     return debugstr_an(str->Buffer, str->Length);
  43 }
  44
  45 LPCSTR debugstr_us( const UNICODE_STRING *us )
  46 {
  47     if (!us) return "<null>";
  48     return debugstr_wn(us->Buffer, us->Length);
  49 }
  50
  51 /*********************************************************************
  52  *                  _ftol   (NTDLL)
  53  */
  54 #ifdef USING_REAL_FPU
  55 LONG __cdecl NTDLL__ftol(void)
  56 {
  57         /* don't just do DO_FPU("fistp",retval), because the rounding
  58          * mode must also be set to "round towards zero"... */
  59         double fl;
  60         POP_FPU(fl);
  61         return (LONG)fl;
  62 }
  63 #else
  64 LONG __cdecl NTDLL__ftol(double fl)
  65 {
  66         FIXME("should be register function\n");
  67         return (LONG)fl;
  68 }
  69 #endif
  70
  71 /*********************************************************************
  72  *                  _CIpow   (NTDLL)
  73  */
  74 #ifdef USING_REAL_FPU
  75 LONG __cdecl NTDLL__CIpow(void)
  76 {
  77         double x,y;
  78         POP_FPU(y);
  79         POP_FPU(x);
  80         return pow(x,y);
  81 }
  82 #else
  83 LONG __cdecl NTDLL__CIpow(double x,double y)
  84 {
  85         FIXME("should be register function\n");
  86         return pow(x,y);
  87 }
  88 #endif