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procfs_fpregs.c (331722) procfs_fpregs.c (341491)
1/*-
2 * Copyright (c) 1993 Jan-Simon Pendry
3 * Copyright (c) 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Jan-Simon Pendry.
8 *

--- 20 unchanged lines hidden (view full) ---

29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)procfs_fpregs.c 8.2 (Berkeley) 6/15/94
34 *
35 * From:
36 * $Id: procfs_regs.c,v 3.2 1993/12/15 09:40:17 jsp Exp $
1/*-
2 * Copyright (c) 1993 Jan-Simon Pendry
3 * Copyright (c) 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Jan-Simon Pendry.
8 *

--- 20 unchanged lines hidden (view full) ---

29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)procfs_fpregs.c 8.2 (Berkeley) 6/15/94
34 *
35 * From:
36 * $Id: procfs_regs.c,v 3.2 1993/12/15 09:40:17 jsp Exp $
37 * $FreeBSD: stable/11/sys/fs/procfs/procfs_fpregs.c 331722 2018-03-29 02:50:57Z eadler $
37 * $FreeBSD: stable/11/sys/fs/procfs/procfs_fpregs.c 341491 2018-12-04 19:07:10Z markj $
38 */
39
40#include "opt_compat.h"
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/lock.h>
45#include <sys/mutex.h>

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97 PROC_UNLOCK(p);
98 return (EPERM);
99 }
100 if (!P_SHOULDSTOP(p)) {
101 PROC_UNLOCK(p);
102 return (EBUSY);
103 }
104
38 */
39
40#include "opt_compat.h"
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/lock.h>
45#include <sys/mutex.h>

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97 PROC_UNLOCK(p);
98 return (EPERM);
99 }
100 if (!P_SHOULDSTOP(p)) {
101 PROC_UNLOCK(p);
102 return (EBUSY);
103 }
104
105 /* XXXKSE: */
106 td2 = FIRST_THREAD_IN_PROC(p);
107#ifdef COMPAT_FREEBSD32
108 if (SV_CURPROC_FLAG(SV_ILP32)) {
109 if (SV_PROC_FLAG(td2->td_proc, SV_ILP32) == 0) {
110 PROC_UNLOCK(p);
111 return (EINVAL);
112 }
113 wrap32 = 1;
105 td2 = FIRST_THREAD_IN_PROC(p);
106#ifdef COMPAT_FREEBSD32
107 if (SV_CURPROC_FLAG(SV_ILP32)) {
108 if (SV_PROC_FLAG(td2->td_proc, SV_ILP32) == 0) {
109 PROC_UNLOCK(p);
110 return (EINVAL);
111 }
112 wrap32 = 1;
114 }
113 memset(&r32, 0, sizeof(r32));
114 } else
115#endif
115#endif
116 memset(&r, 0, sizeof(r));
116 error = PROC(read, fpregs, td2, &r);
117 if (error == 0) {
118 PROC_UNLOCK(p);
119 error = UIOMOVE_FROMBUF(r, uio);
120 PROC_LOCK(p);
121 }
122 if (error == 0 && uio->uio_rw == UIO_WRITE) {
123 if (!P_SHOULDSTOP(p))
124 error = EBUSY;
125 else
126 /* XXXKSE: */
127 error = PROC(write, fpregs, td2, &r);
128 }
129 PROC_UNLOCK(p);
130
131 return (error);
132}
117 error = PROC(read, fpregs, td2, &r);
118 if (error == 0) {
119 PROC_UNLOCK(p);
120 error = UIOMOVE_FROMBUF(r, uio);
121 PROC_LOCK(p);
122 }
123 if (error == 0 && uio->uio_rw == UIO_WRITE) {
124 if (!P_SHOULDSTOP(p))
125 error = EBUSY;
126 else
127 /* XXXKSE: */
128 error = PROC(write, fpregs, td2, &r);
129 }
130 PROC_UNLOCK(p);
131
132 return (error);
133}