Fix: event probes attached before event enabled

[lttng-ust.git] / liblttng-ust / lttng-context-procname.c

diff --git a/liblttng-ust/lttng-context-procname.c b/liblttng-ust/lttng-context-procname.c
index 8c1520ad51f221b467dd38815cd66868a75b137d..c6660e3c02319334989c44d277fdef6179ed297f 100644 (file)
--- a/liblttng-ust/lttng-context-procname.c
+++ b/liblttng-ust/lttng-context-procname.c
@@ -21,6 +21,7 @@
  */
 
 #define _LGPL_SOURCE
+#include <stddef.h>
 #include <lttng/ust-events.h>
 #include <lttng/ust-tracer.h>
 #include <lttng/ringbuffer-config.h>
@@ -78,10 +79,7 @@ void lttng_context_procname_reset(void)
 static
 size_t procname_get_size(struct lttng_ctx_field *field, size_t offset)
 {
-       size_t size = 0;
-
-       size += LTTNG_UST_PROCNAME_LEN;
-       return size;
+       return LTTNG_UST_PROCNAME_LEN;
 }
 
 static
@@ -99,12 +97,12 @@ static
 void procname_get_value(struct lttng_ctx_field *field,
                struct lttng_ctx_value *value)
 {
-       char *procname;
-
-       procname = wrapper_getprocname();
-       value->u.str = procname;
+       value->u.str = wrapper_getprocname();
 }
 
+static const struct lttng_type procname_array_elem_type =
+       __type_integer(char, BYTE_ORDER, 10, UTF8);
+
 int lttng_add_procname_to_ctx(struct lttng_ctx **ctx)
 {
        struct lttng_ctx_field *field;
@@ -117,15 +115,10 @@ int lttng_add_procname_to_ctx(struct lttng_ctx **ctx)
                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 = LTTNG_UST_PROCNAME_LEN;
+       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 = LTTNG_UST_PROCNAME_LEN;
        field->get_size = procname_get_size;
        field->record = procname_record;
        field->get_value = procname_get_value;