1 31cf0ab1 2004-12-28 devnull #include "threadimpl.h"
 2 31cf0ab1 2004-12-28 devnull 
 3 cea10000 2005-05-01 devnull #include "BSD.c"
 4 4753f069 2005-01-17 devnull 
 5 31cf0ab1 2004-12-28 devnull /*
 6 d54ead7f 2004-12-28 devnull  * FreeBSD 4 and earlier needs the context functions.
 7 d54ead7f 2004-12-28 devnull  */
 8 d54ead7f 2004-12-28 devnull void
 9 d54ead7f 2004-12-28 devnull makecontext(ucontext_t *ucp, void (*func)(void), int argc, ...)
10 d54ead7f 2004-12-28 devnull {
11 d54ead7f 2004-12-28 devnull 	int *sp;
12 31cf0ab1 2004-12-28 devnull 
13 d54ead7f 2004-12-28 devnull 	sp = (int*)ucp->uc_stack.ss_sp+ucp->uc_stack.ss_size/4;
14 d54ead7f 2004-12-28 devnull 	sp -= argc;
15 d54ead7f 2004-12-28 devnull 	memmove(sp, &argc+1, argc*sizeof(int));
16 d54ead7f 2004-12-28 devnull 	*--sp = 0;		/* return address */
17 d54ead7f 2004-12-28 devnull 	ucp->uc_mcontext.mc_eip = (long)func;
18 d54ead7f 2004-12-28 devnull 	ucp->uc_mcontext.mc_esp = (int)sp;
19 d54ead7f 2004-12-28 devnull }
20 d54ead7f 2004-12-28 devnull 
21 d54ead7f 2004-12-28 devnull int
22 d54ead7f 2004-12-28 devnull swapcontext(ucontext_t *oucp, ucontext_t *ucp)
23 d54ead7f 2004-12-28 devnull {
24 d54ead7f 2004-12-28 devnull 	if(getcontext(oucp) == 0)
25 d54ead7f 2004-12-28 devnull 		setcontext(ucp);
26 d54ead7f 2004-12-28 devnull 	return 0;
27 d54ead7f 2004-12-28 devnull }
28 d54ead7f 2004-12-28 devnull 
29 b20b42b8 2005-08-10 devnull void
30 b20b42b8 2005-08-10 devnull _pthreadinit(void)
31 b20b42b8 2005-08-10 devnull {
32 b20b42b8 2005-08-10 devnull 	__isthreaded = 1;
33 b20b42b8 2005-08-10 devnull 	signal(SIGUSR2, sigusr2handler);
34 b20b42b8 2005-08-10 devnull }