[ECOS] RE: Thread "program counter" for SPARC platform.

[amassa@san.rr.com]

You can see what is being stored during a context switch in
/packages/hal/sparc/arch/current/src/context.S in the function
hal_thread_switch_context.

You can parse through here and get the current location saved for the
current thread.

--Anthony


>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Hello,
I am using ECOS in a SPARC platform. 

I am trying to implement something that would give the
PC of every task running in the system.
I can walk through the list of all task then print
information about every task. I print the stack_ptr by
calling get_saved_context(). I assumed the all
registers are saved into stack during the context  Can
anyone suggest how I could figure out the  PC and nPc
from stack. Following is the example .

        Cyg_Thread *t = Cyg_Thread::get_list_head();

        printf("\nThreads:\n\n");
    
        while( NULL != t )
        {

		printf( "%20s stack base = %08x ptr = %08x size =
%08x\n",
                         "",
                         t->get_stack_base(),
                         t->get_saved_context(),
                         t->get_stack_size()
                );

 		t = t->get_list_next();
	}



Thanks 
       Ottawa


--------------------------------------------------------------------
mail2web - Check your email from the web at
http://mail2web.com/ .



--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss