Re: more info on boot crash

[Marcus Brinkmann]

On Mon, Jul 29, 2002 at 07:28:38PM +0200, Marcus Brinkmann wrote:
> Funny though that __hurd_threadvar_stack_mask is 0, too (in all threads, I
> think).

And that in the Hurd code, libthreads/stack.c doesn't set it anymore!

I am trying out this fix now (and will check it in if it works):

2002-07-29  Marcus Brinkmann  <marcus@gnu.org>

        * stack.c (stack_init): Put back in setting of the
        __hurd_threadvar_stack_mask and __hurd_threadvar_stack_offset
        variables.

Index: stack.c
===================================================================
RCS file: /cvsroot/hurd/hurd/libthreads/stack.c,v
retrieving revision 1.8
diff -u -r1.8 stack.c
--- stack.c     27 May 2002 02:50:41 -0000      1.8
+++ stack.c     29 Jul 2002 17:37:36 -0000
@@ -331,6 +331,18 @@
        cthread_stack_mask = cthread_stack_size - 1;
 #endif /* defined(STACK_GROWTH_UP) */
 
+        /* Set up the variables so GNU can find its per-thread variables.  */
+        __hurd_threadvar_stack_mask = ~(cthread_stack_size - 1);
+        /* The GNU per-thread variables will be stored just after the
+           cthread-self pointer at the base of the stack.  */
+#ifdef  STACK_GROWTH_UP
+        __hurd_threadvar_stack_offset = sizeof (ur_cthread_t *);
+#else
+        __hurd_threadvar_stack_offset = (cthread_stack_size -
+                                         sizeof (ur_cthread_t *) -
+                                         __hurd_threadvar_max * sizeof (long));
+#endif
+
        /*
         * Guess at first available region for stack.
         */


-- 
`Rhubarb is no Egyptian god.' GNU      http://www.gnu.org    marcus@gnu.org
Marcus Brinkmann              The Hurd http://www.gnu.org/software/hurd/
Marcus.Brinkmann@ruhr-uni-bochum.de
http://www.marcus-brinkmann.de/