#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
+#include <linux/utsname.h>
#include "wrapper/uuid.h"
#include "wrapper/vmalloc.h" /* for wrapper_vmalloc_sync_all() */
+#include "wrapper/random.h"
#include "lttng-events.h"
#include "lttng-tracer.h"
ACCESS_ONCE(session->active) = 1;
ACCESS_ONCE(session->been_active) = 1;
ret = _lttng_session_metadata_statedump(session);
+ if (ret) {
+ ACCESS_ONCE(session->active) = 0;
+ goto end;
+ }
+ ret = lttng_statedump_start(session);
if (ret)
ACCESS_ONCE(session->active) = 0;
end:
int _lttng_session_metadata_statedump(struct lttng_session *session)
{
unsigned char *uuid_c = session->uuid.b;
- unsigned char uuid_s[37];
+ unsigned char uuid_s[37], clock_uuid_s[BOOT_ID_LEN];
struct lttng_channel *chan;
struct lttng_event *event;
int ret = 0;
if (ret)
goto end;
+ ret = lttng_metadata_printf(session,
+ "env {\n"
+ " domain = \"%s\";\n"
+ " sysname = \"%s\";\n"
+ " release = \"%s\";\n"
+ " version = \"%s\";\n"
+ "};\n\n",
+ "kernel",
+ utsname()->sysname,
+ utsname()->release,
+ utsname()->version
+ );
+ if (ret)
+ goto end;
+
ret = lttng_metadata_printf(session,
"clock {\n"
- " name = %s;\n"
- " uuid = %s;\n"
+ " name = %s;\n",
+ "monotonic"
+ );
+ if (ret)
+ goto end;
+
+ if (!trace_clock_uuid(clock_uuid_s)) {
+ ret = lttng_metadata_printf(session,
+ " uuid = \"%s\";\n",
+ clock_uuid_s
+ );
+ if (ret)
+ goto end;
+ }
+
+ ret = lttng_metadata_printf(session,
" description = \"Monotonic Clock\";\n"
" freq = %llu; /* Frequency, in Hz */\n"
" /* clock value offset from Epoch is: offset * (1/freq) */\n"
" offset = %llu;\n"
"};\n\n",
- "monotonic",
- trace_clock_uuid(),
(unsigned long long) trace_clock_freq(),
(unsigned long long) measure_clock_offset()
);