Re: use pthread under winCE

[James Ewing <james.ewing@sveasoft.com>]

Hi Benoit,

Try inserting the following:

#if defined(_ARM_)
#define PTW32_PROGCTR(Context)  ((Context).Psr)
#endif

Best Regards,

James

Benoit Raque wrote:

> Hi James,
>
> Thanks a lot for your help.
> I'm now able to compile the project for the emulator PocketPC2003 
> under eVC4.
>
> But when I try to compile for ARMv4, I get this error : 
> "pthread_cancel.c(59) : fatal error C1189: #error :  Module contains 
> CPU-specific code; modify and recompile."
> Looking at the code just before, I want to add something like that :
> #if defined(_ARM_)
> #define PTW32_PROGCTR(Context)  ((Context)."something here")
> #endif but Iar, Fir or Eip don't work.
> And I really don't know what I can put there.
>
> Thank you again.
>
> Benoit
>
> James Ewing wrote:
>
>> Hi Benoit,
>>
>> I've attached my modifications to the ptw32_getprocessors.c file that 
>> fixes the GetProcessAffinityMask for WINCE. It just forces the 
>> processor count to one.
>>
>> I looked in the pthread.h file and found that if you don't have _UWIN 
>> defined, pthreads own internal _errno will be used. Make sure _UWIN 
>> is *not* defined. See line 1143 in pthread.h.
>>
>> It was many moons ago that I tweaked pthreads for WIN32 for WINCE and 
>> I've forgotten much of what needed to be done. If anyone wants a diff 
>> of my build against the current CVS version just let me know and I'll 
>> send it out. It might be a good idea to test it a bit and then merge 
>> it into the main CVS tree. I use the same source for both WIN32 and 
>> WINCE pthreads builds.
>>
>> Best,
>>
>> James
>>
>>
>> [ ptw32_getprocessors.c]
>> ----------------------------------------------------------------------
>> /*
>> * ptw32_getprocessors()
>> *
>> * Get the number of CPUs available to the process.
>> *
>> * If the available number of CPUs is 1 then pthread_spin_lock()
>> * will block rather than spin if the lock is already owned.
>> *
>> * pthread_spin_init() calls this routine when initialising
>> * a spinlock. If the number of available processors changes
>> * (after a call to SetProcessAffinityMask()) then only
>> * newly initialised spinlocks will notice.
>> */
>> int
>> ptw32_getprocessors(int * count)
>> {
>>  int result = 0;
>>
>> #ifndef WINCE
>>  DWORD vProcessCPUs;
>>  DWORD vSystemCPUs;
>>
>>  if (GetProcessAffinityMask(GetCurrentProcess(),
>>                 &vProcessCPUs,
>>                 &vSystemCPUs))
>>    {
>>      DWORD bit;
>>      int CPUs = 0;
>>
>>      for (bit = 1; bit != 0; bit <<= 1)
>>    {
>>      if (vProcessCPUs & bit)
>>        {
>>          CPUs++;
>>        }
>>    }
>>      *count = CPUs;
>>    }
>>  else
>>    {
>>      result = EAGAIN;
>>    }
>> #else
>>  *count = 1;
>> #endif
>>  return(result);
>> // end of file 
>> -----------------------------------------------------------
>>
>>
>>
>
>