🚀 go-pugleaf

> 
> Has anyone been able to get lightweight processes on the SUN to work 
> using GCC 2.3.3?
>
>We have tried making all variables voltile and have used the 
>-fpcc-struct-return switch on the compiler, but they still don't work.
>
> The lwp_create call does not return to the parent until the child
>process completes.

  Workaround:

Compile the following with "cc" for an object file.

-------------------------------------------

#include <lwp/lwp.h>
#include <lpu/lwpmachdep.h>
#include <lpw/stackdep.h>

main( argc, argv )
int argc;
char ** argv;
{
    main2( argc, argv );
}
------------------------------------------


Compile all remaining source with gcc.  



>--------------------------- testlwp.c -----------------------
>#include <lwp/lwp.h>
>#include <lwp/lwpmachdep.h>
>#include <lwp/stackdep.h>
>
>#define MINSTACKSZ 1024
>#define MAXPRIO 10
>
>stkalign_t stack[1000+MINSTACKSZ];
>
>main()
 ^^^^^^
main2()

>{
>   int task();
>   thread_t tid;
>
>   printf("main here\n");
>   (void) pod_setmaxpri(MAXPRIO);
>   lwp_setstkcache( 1000, 2);
>
>   printf("Start child\n");
>   lwp_create( &tid, task, MAXPRIO, 0, lwp_newstk(), 0);
>   printf("End child\n");
>
>}
>
>
>task()
>{
>   printf("Child process running.\n");
>   for(i=0 ; i<5 ; i++ )
>   {
>     sleep( 2 );
>   }
>}
>------------------------ end of testlwp.c -----------------------


Link the "main" program and gcc generated "application" routines.

LWP will function as advertized. I don't know why this works other than
a guess that there is some "setup" for lightweight processes in the 
"cc" initialization routine.

--------------------------------------------------------
Ron Stafford  (msgid RES) TEXAS INSTRUMENTS INCORPORATED
(214) 917-2050            P.O.Box 655012, MS 3620
STAFFORD@LOBBY.TI.COM     Dallas, Texas 75265-3620