Deleted Added
sdiff udiff text old ( 211613 ) new ( 211614 )
full compact
kern_dtrace.c (211613) kern_dtrace.c (211614)
1/*-
2 * Copyright (c) 2007-2008 John Birrell <jb@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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

20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2007-2008 John Birrell <jb@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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

20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/kern/kern_dtrace.c 211613 2010-08-22 11:08:18Z rpaulo $");
28__FBSDID("$FreeBSD: head/sys/kern/kern_dtrace.c 211614 2010-08-22 11:09:53Z rpaulo $");
29
30#include "opt_kdb.h"
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/eventhandler.h>
35#include <sys/kdb.h>
36#include <sys/kernel.h>
37#include <sys/malloc.h>
38#include <sys/proc.h>
39#include <sys/dtrace_bsd.h>
40
41#define KDTRACE_PROC_SIZE 64
29
30#include "opt_kdb.h"
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/eventhandler.h>
35#include <sys/kdb.h>
36#include <sys/kernel.h>
37#include <sys/malloc.h>
38#include <sys/proc.h>
39#include <sys/dtrace_bsd.h>
40
41#define KDTRACE_PROC_SIZE 64
42#define KDTRACE_PROC_ZERO 8
43#define KDTRACE_THREAD_SIZE 256
42#define KDTRACE_THREAD_SIZE 256
44#define KDTRACE_THREAD_ZERO 64
45
46MALLOC_DEFINE(M_KDTRACE, "kdtrace", "DTrace hooks");
47
48/* Return the DTrace process data size compiled in the kernel hooks. */
49size_t
50kdtrace_proc_size()
51{
52
53 return (KDTRACE_PROC_SIZE);
54}
55
56static void
57kdtrace_proc_ctor(void *arg __unused, struct proc *p)
58{
43
44MALLOC_DEFINE(M_KDTRACE, "kdtrace", "DTrace hooks");
45
46/* Return the DTrace process data size compiled in the kernel hooks. */
47size_t
48kdtrace_proc_size()
49{
50
51 return (KDTRACE_PROC_SIZE);
52}
53
54static void
55kdtrace_proc_ctor(void *arg __unused, struct proc *p)
56{
59 p->p_dtrace = malloc(KDTRACE_PROC_SIZE, M_KDTRACE, M_WAITOK);
60
57
61 bzero(p->p_dtrace, KDTRACE_PROC_ZERO);
58 p->p_dtrace = malloc(KDTRACE_PROC_SIZE, M_KDTRACE, M_WAITOK|M_ZERO);
62}
63
64static void
65kdtrace_proc_dtor(void *arg __unused, struct proc *p)
66{
67
68 if (p->p_dtrace != NULL) {
69 free(p->p_dtrace, M_KDTRACE);
70 p->p_dtrace = NULL;
71 }
72}
73
74/* Return the DTrace thread data size compiled in the kernel hooks. */
75size_t
76kdtrace_thread_size()
77{
59}
60
61static void
62kdtrace_proc_dtor(void *arg __unused, struct proc *p)
63{
64
65 if (p->p_dtrace != NULL) {
66 free(p->p_dtrace, M_KDTRACE);
67 p->p_dtrace = NULL;
68 }
69}
70
71/* Return the DTrace thread data size compiled in the kernel hooks. */
72size_t
73kdtrace_thread_size()
74{
75
78 return (KDTRACE_THREAD_SIZE);
79}
80
81static void
82kdtrace_thread_ctor(void *arg __unused, struct thread *td)
83{
76 return (KDTRACE_THREAD_SIZE);
77}
78
79static void
80kdtrace_thread_ctor(void *arg __unused, struct thread *td)
81{
84 td->td_dtrace = malloc(KDTRACE_THREAD_SIZE, M_KDTRACE, M_WAITOK);
85
82
86 bzero(td->td_dtrace, KDTRACE_THREAD_ZERO);
83 td->td_dtrace = malloc(KDTRACE_THREAD_SIZE, M_KDTRACE, M_WAITOK|M_ZERO);
87}
88
89static void
90kdtrace_thread_dtor(void *arg __unused, struct thread *td)
91{
92
93 if (td->td_dtrace != NULL) {
94 free(td->td_dtrace, M_KDTRACE);

--- 22 unchanged lines hidden --- 		84}
85
86static void
87kdtrace_thread_dtor(void *arg __unused, struct thread *td)
88{
89
90 if (td->td_dtrace != NULL) {
91 free(td->td_dtrace, M_KDTRACE);

--- 22 unchanged lines hidden ---