1 76193d7c 2003-09-30 devnull #include "threadimpl.h"
3 a3785ca2 2004-04-21 devnull * To use this you need some patches to Valgrind that
4 a3785ca2 2004-04-21 devnull * let it help out with detecting stack overflow.
6 a3785ca2 2004-04-21 devnull #ifdef USEVALGRIND
7 a3785ca2 2004-04-21 devnull #include <valgrind/memcheck.h>
10 76193d7c 2003-09-30 devnull static void
11 76193d7c 2003-09-30 devnull launcher386(void (*f)(void *arg), void *arg)
14 a3785ca2 2004-04-21 devnull Thread *t;
16 a3785ca2 2004-04-21 devnull p = _threadgetproc();
17 a3785ca2 2004-04-21 devnull t = p->thread;
18 c4097c29 2004-05-11 devnull _threadstacklimit(t->stk, t->stk+t->stksize);
20 76193d7c 2003-09-30 devnull (*f)(arg);
21 76193d7c 2003-09-30 devnull threadexits(nil);
25 76193d7c 2003-09-30 devnull _threadinitstack(Thread *t, void (*f)(void*), void *arg)
27 76193d7c 2003-09-30 devnull ulong *tos;
29 76193d7c 2003-09-30 devnull tos = (ulong*)&t->stk[t->stksize&~7];
30 76193d7c 2003-09-30 devnull *--tos = (ulong)arg;
31 76193d7c 2003-09-30 devnull *--tos = (ulong)f;
32 76193d7c 2003-09-30 devnull t->sched.pc = (ulong)launcher386;
33 76193d7c 2003-09-30 devnull t->sched.sp = (ulong)tos - 8; /* old PC and new PC */
37 a3785ca2 2004-04-21 devnull _threadinswitch(int enter)
39 a3785ca2 2004-04-21 devnull USED(enter);
40 a3785ca2 2004-04-21 devnull #ifdef USEVALGRIND
41 a3785ca2 2004-04-21 devnull if(enter)
42 a3785ca2 2004-04-21 devnull VALGRIND_SET_STACK_LIMIT(0, 0, 0);
44 c4097c29 2004-05-11 devnull VALGRIND_SET_STACK_LIMIT(0, 0, 1);
49 c4097c29 2004-05-11 devnull _threadstacklimit(void *bottom, void *top)
51 c4097c29 2004-05-11 devnull USED(bottom);
52 c4097c29 2004-05-11 devnull USED(top);
54 a3785ca2 2004-04-21 devnull #ifdef USEVALGRIND
55 c4097c29 2004-05-11 devnull VALGRIND_SET_STACK_LIMIT(1, bottom, top);