• Jacob Carlborg (46/46) Dec 15 2013 I'm trying to use threads on Mac OS X using D1 and Tango. I have this
• Jacob Carlborg (22/34) Dec 18 2013 If anyone is interested I found the problem. I added the following code:

Jacob Carlborg <doob me.com> writes:

I'm trying to use threads on Mac OS X using D1 and Tango. I have this 
very simple example:

import tango.core.Thread;

void main ()
{
     Thread thread = new Thread({ });
     thread.start();
     thread.join();
}

I'm using DMD 1.076 to compile the above example on Mac OS X 10.8.5 as 
32bit. When I run that example I get a segmentation fault. The example 
works fine on Linux.

Since this is so trivial example I'm expecting it's either the thread 
implementation in Tango that isn't working or the compiler is not 
generating the correct code. Does anyone know if there's a trivial fix 
either in the compiler or in Tango to fix this?

I've tried to find difference in the thread implementation in druntime 
and the one in Tango. There are a few differences but none helped when I 
tried and modified Tango.

This is the stack trace:

Thread 0:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib        	0x90ed67ce mach_msg_trap + 10
1   libsystem_kernel.dylib        	0x90ed5cac mach_msg + 68
2   libsystem_kernel.dylib        	0x90ed0541 semaphore_create + 125
3   libsystem_c.dylib             	0x91f3b441 new_sem_from_pool + 177
4   libsystem_c.dylib             	0x91fcb92b pthread_join + 468
5   main                          	0x000ff760 
D5tango4core6Thread6Thread4joinMFbZC6Object + 56
6   main                          	0x000eef2d _Dmain + 77
7   main                          	0x000f597b 
D2rt8compiler3dmd2rt6dmain24mainUiPPaZi7runMainMFZv + 23
8   main                          	0x000f58ae 
D2rt8compiler3dmd2rt6dmain24mainUiPPaZi7tryExecMFDFZvZv + 42
9   main                          	0x000f59c9 
D2rt8compiler3dmd2rt6dmain24mainUiPPaZi6runAllMFZv + 65
10  main                          	0x000f58ae 
D2rt8compiler3dmd2rt6dmain24mainUiPPaZi7tryExecMFDFZvZv + 42
11  main                          	0x000f55b1 main + 189
12  libdyld.dylib                 	0x9a3b7725 start + 1

Thread 1 Crashed:
0   ???                           	0x1c5d8b5f 0 + 475892575
1   libsystem_c.dylib             	0x91f397f7 _pthread_exit + 121
2   libsystem_c.dylib             	0x91f395c0 _pthread_start + 353
3   libsystem_c.dylib             	0x91f23dce thread_start + 34

-- 
/Jacob Carlborg

Jacob Carlborg <doob me.com> writes:

On 2013-12-15 16:28, Jacob Carlborg wrote:
 I'm trying to use threads on Mac OS X using D1 and Tango. I have this
 very simple example:

 import tango.core.Thread;

 void main ()
 {
      Thread thread = new Thread({ });
      thread.start();
      thread.join();
 }

 I'm using DMD 1.076 to compile the above example on Mac OS X 10.8.5 as
 32bit. When I run that example I get a segmentation fault. The example
 works fine on Linux.

If anyone is interested I found the problem. I added the following code:

version( linux )
{
     cleanup.pop( 0 );
}
else version( darwin )
{
     cleanup.pop( 0 );
}
else version( solaris )
{
     cleanup.pop( 0 );
}
else
{
     pthread_cleanup_pop( 0 );
}

Here:

http://www.dsource.org/projects/tango/browser/trunk/tango/core/Thread.d#L275

-- 
/Jacob Carlborg