}
}
+static
+void hostname_get_value(struct lttng_ctx_field *field,
+ struct lttng_probe_ctx *lttng_probe_ctx,
+ union lttng_ctx_value *value)
+{
+ struct nsproxy *nsproxy;
+ struct uts_namespace *ns;
+ char *hostname;
+
+ /*
+ * No need to take the RCU read-side lock to read current
+ * nsproxy. (documented in nsproxy.h)
+ */
+ nsproxy = current->nsproxy;
+ if (nsproxy) {
+ ns = nsproxy->uts_ns;
+ hostname = ns->name.nodename;
+ } else {
+ hostname = "";
+ }
+ value->str = hostname;
+}
+
int lttng_add_hostname_to_ctx(struct lttng_ctx **ctx)
{
struct lttng_ctx_field *field;
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 = is_signed_type(char);
+ 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->get_size = hostname_get_size;
field->record = hostname_record;
+ field->get_value = hostname_get_value;
+ lttng_context_update(*ctx);
wrapper_vmalloc_sync_all();
return 0;
}
MODULE_LICENSE("GPL and additional rights");
MODULE_AUTHOR("Mathieu Desnoyers");
MODULE_DESCRIPTION("Linux Trace Toolkit Perf Support");
+MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "."
+ __stringify(LTTNG_MODULES_MINOR_VERSION) "."
+ __stringify(LTTNG_MODULES_PATCHLEVEL_VERSION)
+ LTTNG_MODULES_EXTRAVERSION);