#include <linux/slab.h>
#include <linux/sched.h>
#include <lttng/events.h>
+#include <lttng/events-internal.h>
#include <ringbuffer/frontend_types.h>
#include <wrapper/vmalloc.h>
#include <lttng/tracer.h>
#include <lttng/endian.h>
static
-size_t procname_get_size(size_t offset)
+size_t procname_get_size(void *priv, struct lttng_kernel_probe_ctx *probe_ctx, size_t offset)
{
size_t size = 0;
* could lead to crash in IRQ context and deadlock of the lockdep tracer.
*/
static
-void procname_record(struct lttng_ctx_field *field,
- struct lib_ring_buffer_ctx *ctx,
- struct lttng_channel *chan)
+void procname_record(void *priv, struct lttng_kernel_probe_ctx *probe_ctx,
+ struct lttng_kernel_ring_buffer_ctx *ctx,
+ struct lttng_kernel_channel_buffer *chan)
{
- chan->ops->event_write(ctx, current->comm, sizeof(current->comm));
+ chan->ops->event_write(ctx, current->comm, sizeof(current->comm), 1);
}
static
-void procname_get_value(struct lttng_ctx_field *field,
- struct lttng_probe_ctx *lttng_probe_ctx,
- union lttng_ctx_value *value)
+void procname_get_value(void *priv,
+ struct lttng_kernel_probe_ctx *lttng_probe_ctx,
+ struct lttng_ctx_value *value)
{
- value->str = current->comm;
+ value->u.str = current->comm;
}
-static const struct lttng_type procname_array_elem_type =
- __type_integer(char, 0, 0, -1, __BYTE_ORDER, 10, UTF8);
+static const struct lttng_kernel_ctx_field *ctx_field = lttng_kernel_static_ctx_field(
+ lttng_kernel_static_event_field("procname",
+ lttng_kernel_static_type_array_text(sizeof(current->comm)),
+ false, false, false),
+ procname_get_size,
+ procname_record,
+ procname_get_value,
+ NULL, NULL);
-int lttng_add_procname_to_ctx(struct lttng_ctx **ctx)
+int lttng_add_procname_to_ctx(struct lttng_kernel_ctx **ctx)
{
- struct lttng_ctx_field *field;
+ int ret;
- field = lttng_append_context(ctx);
- if (!field)
- return -ENOMEM;
- if (lttng_find_context(*ctx, "procname")) {
- lttng_remove_context_field(ctx, field);
+ if (lttng_kernel_find_context(*ctx, ctx_field->event_field->name))
return -EEXIST;
- }
- field->event_field.name = "procname";
- 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;
- field->get_value = procname_get_value;
- lttng_context_update(*ctx);
+ ret = lttng_kernel_context_append(ctx, ctx_field);
wrapper_vmalloc_sync_mappings();
- return 0;
+ return ret;
}
EXPORT_SYMBOL_GPL(lttng_add_procname_to_ctx);