Migrate tracepoint instrumentation to TP_FIELDS

[lttng-modules.git] / lttng-context-tid.c

diff --git a/lttng-context-tid.c b/lttng-context-tid.c
index f6c8fd78f3ee59cb3037977a204870762da38ef8..7b8e04bed21518520f3d3a2b45127b08dd2dfb15 100644 (file)
--- a/lttng-context-tid.c
+++ b/lttng-context-tid.c
@@ -50,6 +50,16 @@ void tid_record(struct lttng_ctx_field *field,
        chan->ops->event_write(ctx, &tid, sizeof(tid));
 }
 
+static
+void tid_get_value(struct lttng_ctx_field *field,
+               union lttng_ctx_value *value)
+{
+       pid_t tid;
+
+       tid = task_pid_nr(current);
+       value->s64 = tid;
+}
+
 int lttng_add_tid_to_ctx(struct lttng_ctx **ctx)
 {
        struct lttng_ctx_field *field;
@@ -65,12 +75,14 @@ int lttng_add_tid_to_ctx(struct lttng_ctx **ctx)
        field->event_field.type.atype = atype_integer;
        field->event_field.type.u.basic.integer.size = sizeof(pid_t) * CHAR_BIT;
        field->event_field.type.u.basic.integer.alignment = lttng_alignof(pid_t) * CHAR_BIT;
-       field->event_field.type.u.basic.integer.signedness = is_signed_type(pid_t);
+       field->event_field.type.u.basic.integer.signedness = lttng_is_signed_type(pid_t);
        field->event_field.type.u.basic.integer.reverse_byte_order = 0;
        field->event_field.type.u.basic.integer.base = 10;
        field->event_field.type.u.basic.integer.encoding = lttng_encode_none;
        field->get_size = tid_get_size;
        field->record = tid_record;
+       field->get_value = tid_get_value;
+       lttng_context_update(*ctx);
        wrapper_vmalloc_sync_all();
        return 0;
 }
@@ -79,3 +91,7 @@ EXPORT_SYMBOL_GPL(lttng_add_tid_to_ctx);
 MODULE_LICENSE("GPL and additional rights");
 MODULE_AUTHOR("Mathieu Desnoyers");
 MODULE_DESCRIPTION("Linux Trace Toolkit TID Context");
+MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "."
+       __stringify(LTTNG_MODULES_MINOR_VERSION) "."
+       __stringify(LTTNG_MODULES_PATCHLEVEL_VERSION)
+       LTTNG_MODULES_EXTRAVERSION);