4 * LTTng UST Instruction Pointer Context.
6 * Copyright (C) 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; only
11 * version 2.1 of the License.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include <sys/types.h>
25 #include <lttng/ust-events.h>
26 #include <lttng/ust-tracer.h>
27 #include <lttng/ringbuffer-config.h>
30 size_t ip_get_size(size_t offset
)
34 size
+= lib_ring_buffer_align(offset
, lttng_alignof(void *));
35 size
+= sizeof(void *);
40 void ip_record(struct lttng_ctx_field
*field
,
41 struct lttng_ust_lib_ring_buffer_ctx
*ctx
,
42 struct lttng_channel
*chan
)
47 lib_ring_buffer_align_ctx(ctx
, lttng_alignof(ip
));
48 chan
->ops
->event_write(ctx
, &ip
, sizeof(ip
));
51 int lttng_add_ip_to_ctx(struct lttng_ctx
**ctx
)
53 struct lttng_ctx_field
*field
;
55 field
= lttng_append_context(ctx
);
58 if (lttng_find_context(*ctx
, "ip")) {
59 lttng_remove_context_field(ctx
, field
);
62 field
->event_field
.name
= "ip";
63 field
->event_field
.type
.atype
= atype_integer
;
64 field
->event_field
.type
.u
.basic
.integer
.size
= sizeof(void *) * CHAR_BIT
;
65 field
->event_field
.type
.u
.basic
.integer
.alignment
= lttng_alignof(void *) * CHAR_BIT
;
66 field
->event_field
.type
.u
.basic
.integer
.signedness
= lttng_is_signed_type(void *);
67 field
->event_field
.type
.u
.basic
.integer
.reverse_byte_order
= 0;
68 field
->event_field
.type
.u
.basic
.integer
.base
= 16;
69 field
->event_field
.type
.u
.basic
.integer
.encoding
= lttng_encode_none
;
70 field
->get_size
= ip_get_size
;
71 field
->record
= ip_record
;