Adding LTTng UST 2.0 ABI

[lttng-tools.git] / include / lttng-ust.h

diff --git a/include/lttng-ust.h b/include/lttng-ust.h
new file mode 100644 (file)
index 0000000..4a4564e
--- /dev/null
+++ b/include/lttng-ust.h
@@ -0,0 +1,101 @@
+#ifndef _LTTNG_UST_H
+#define _LTTNG_UST_H
+
+/*
+ * Taken from the lttng-ust-abi.h in the UST 2.0 git tree
+ *
+ * Copyright 2010-2011 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * LTTng-UST ABI header
+ *
+ * Dual LGPL v2.1/GPL v2 license.
+ */
+
+#include <stdint.h>
+
+#define LTTNG_UST_SYM_NAME_LEN 128
+
+#define LTTNG_UST_COMM_VERSION_MAJOR 0
+#define LTTNG_UST_COMM_VERSION_MINOR 1
+
+enum lttng_ust_instrumentation {
+       LTTNG_UST_TRACEPOINT    = 0,
+       LTTNG_UST_PROBE         = 1,
+       LTTNG_UST_FUNCTION      = 2,
+};
+
+enum lttng_ust_output {
+       LTTNG_UST_MMAP          = 0,
+};
+
+struct lttng_ust_tracer_version {
+       uint32_t version;
+       uint32_t patchlevel;
+       uint32_t sublevel;
+};
+
+struct lttng_ust_channel {
+       int overwrite;                          /* 1: overwrite, 0: discard */
+       uint64_t subbuf_size;                   /* in bytes */
+       uint64_t num_subbuf;
+       unsigned int switch_timer_interval;     /* usecs */
+       unsigned int read_timer_interval;       /* usecs */
+       enum lttng_ust_output output;           /* output mode */
+};
+
+struct lttng_ust_event {
+       char name[LTTNG_UST_SYM_NAME_LEN];      /* event name */
+       enum lttng_ust_instrumentation instrumentation;
+       /* Per instrumentation type configuration */
+       union {
+       } u;
+};
+
+enum lttng_ust_context_type {
+       LTTNG_UST_CONTEXT_VTID      = 0,
+};
+
+struct lttng_ust_context {
+       enum lttng_ust_context_type ctx;
+       union {
+       } u;
+};
+
+#define _UST_CMD(minor)                 (minor)
+#define _UST_CMDR(minor, type)          (minor)
+#define _UST_CMDW(minor, type)          (minor)
+
+/* Handled by object descriptor */
+#define LTTNG_UST_RELEASE               _UST_CMD(0x1)
+
+/* Handled by object cmd */
+
+/* LTTng-UST commands */
+#define LTTNG_UST_SESSION               _UST_CMD(0x40)
+#define LTTNG_UST_TRACER_VERSION        \
+       _UST_CMDR(0x41, struct lttng_ust_tracer_version)
+#define LTTNG_UST_TRACEPOINT_LIST       _UST_CMD(0x42)
+#define LTTNG_UST_WAIT_QUIESCENT        _UST_CMD(0x43)
+
+/* Session FD ioctl */
+#define LTTNG_UST_METADATA             \
+       _UST_CMDW(0x50, struct lttng_ust_channel)
+#define LTTNG_UST_CHANNEL              \
+       _UST_CMDW(0x51, struct lttng_ust_channel)
+#define LTTNG_UST_SESSION_START        _UST_CMD(0x52)
+#define LTTNG_UST_SESSION_STOP         _UST_CMD(0x53)
+
+/* Channel FD ioctl */
+#define LTTNG_UST_STREAM               _UST_CMD(0x60)
+#define LTTNG_UST_EVENT                \
+       _UST_CMDW(0x61, struct lttng_ust_event)
+
+/* Event and Channel FD ioctl */
+#define LTTNG_UST_CONTEXT              \
+       _UST_CMDW(0x70, struct lttng_ust_context)
+
+/* Event, Channel and Session ioctl */
+#define LTTNG_UST_ENABLE               _UST_CMD(0x80)
+#define LTTNG_UST_DISABLE              _UST_CMD(0x81)
+
+#endif /* _LTTNG_UST_H */