blob: eaea79af8d3689600f218caf6080c88d42f06565 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/* $OpenBSD: uthread_machdep.c,v 1.1 2001/09/10 20:00:14 jason Exp $ */
/*
* Machine-dependent thread state functions for OpenBSD/sparc.
*/
#include <sys/types.h>
#include <machine/frame.h>
#include <machine/param.h>
#include <pthread.h>
#include "pthread_private.h"
/*
* Given a stack and an entry function, initialise a state
* structure that can be later switched to.
*/
void
_thread_machdep_init(statep, base, len, entry)
struct _machdep_state* statep;
void *base;
int len;
void (*entry)(void);
{
struct frame64 *f;
/* Locate the initial frame, aligned at the top of the stack */
f = (struct frame64 *)(((int)base + len - sizeof *f) & ~ALIGNBYTES);
f->fr_fp = (struct frame64 *)-1; /* purposefully misaligned */
f->fr_pc = -1; /* for gdb */
statep->fp = (int)f;
statep->pc = -8 + (int)entry;
}
void
_thread_machdep_save_float_state(statep)
struct _machdep_state* statep;
{
}
void
_thread_machdep_restore_float_state(statep)
struct _machdep_state* statep;
{
}
|
