-/*
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
+ *
* lttng-context-procname.c
*
* LTTng procname context.
*
* Copyright (C) 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/sched.h>
-#include "lttng-events.h"
-#include "wrapper/ringbuffer/frontend_types.h"
-#include "wrapper/vmalloc.h"
-#include "lttng-tracer.h"
+#include <lttng-events.h>
+#include <include/ringbuffer/frontend_types.h>
+#include <lttng-tracer.h>
+#include <lttng-endian.h>
static
size_t procname_get_size(size_t offset)
chan->ops->event_write(ctx, current->comm, sizeof(current->comm));
}
+static
+void procname_get_value(struct lttng_ctx_field *field,
+ struct lttng_probe_ctx *lttng_probe_ctx,
+ union lttng_ctx_value *value)
+{
+ value->str = current->comm;
+}
+
+static const struct lttng_type procname_array_elem_type =
+ __type_integer(char, 0, 0, -1, __BYTE_ORDER, 10, UTF8);
+
int lttng_add_procname_to_ctx(struct lttng_ctx **ctx)
{
struct lttng_ctx_field *field;
return -EEXIST;
}
field->event_field.name = "procname";
- field->event_field.type.atype = atype_array;
- field->event_field.type.u.array.elem_type.atype = atype_integer;
- field->event_field.type.u.array.elem_type.u.basic.integer.size = sizeof(char) * CHAR_BIT;
- field->event_field.type.u.array.elem_type.u.basic.integer.alignment = lttng_alignof(char) * CHAR_BIT;
- field->event_field.type.u.array.elem_type.u.basic.integer.signedness = lttng_is_signed_type(char);
- field->event_field.type.u.array.elem_type.u.basic.integer.reverse_byte_order = 0;
- field->event_field.type.u.array.elem_type.u.basic.integer.base = 10;
- field->event_field.type.u.array.elem_type.u.basic.integer.encoding = lttng_encode_UTF8;
- field->event_field.type.u.array.length = sizeof(current->comm);
+ field->event_field.type.atype = atype_array_nestable;
+ field->event_field.type.u.array_nestable.elem_type = &procname_array_elem_type;
+ field->event_field.type.u.array_nestable.length = sizeof(current->comm);
+ field->event_field.type.u.array_nestable.alignment = 0;
field->get_size = procname_get_size;
field->record = procname_record;
- wrapper_vmalloc_sync_all();
+ field->get_value = procname_get_value;
+ lttng_context_update(*ctx);
return 0;
}
EXPORT_SYMBOL_GPL(lttng_add_procname_to_ctx);
-
-MODULE_LICENSE("GPL and additional rights");
-MODULE_AUTHOR("Mathieu Desnoyers");
-MODULE_DESCRIPTION("Linux Trace Toolkit Perf Support");