X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=ltt-sessiond%2Flttng-ust-abi.h;fp=ltt-sessiond%2Flttng-ust-abi.h;h=303493eeb4e1404ea4241b7054c9f138813ab475;hp=0000000000000000000000000000000000000000;hb=3bd1e0819b577ffcb44acd7c2f8e02ff09654b7b;hpb=f84efadf55274918ca038a4e06e0a8af1a320654

diff --git a/ltt-sessiond/lttng-ust-abi.h b/ltt-sessiond/lttng-ust-abi.h
new file mode 100644
index 000000000..303493eeb
--- /dev/null
+++ b/ltt-sessiond/lttng-ust-abi.h
@@ -0,0 +1,137 @@
+#ifndef _LTTNG_UST_ABI_H
+#define _LTTNG_UST_ABI_H
+
+/*
+ * lttng-ust-abi.h
+ *
+ * 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 */
+	/* The following fields are used internally within UST. */
+	int shm_fd;
+	int wait_fd;
+	uint64_t memory_map_size;
+};
+
+/*
+ * This structure is only used internally within UST. It is not per-se
+ * part of the communication between sessiond and UST.
+ */
+struct lttng_ust_stream {
+	int shm_fd;
+	int wait_fd;
+	uint64_t memory_map_size;
+};
+
+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,
+	LTTNG_UST_CONTEXT_VPID			= 1,
+	LTTNG_UST_CONTEXT_PTHREAD_ID		= 2,
+	LTTNG_UST_CONTEXT_PROCNAME		= 3,
+};
+
+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)
+#define LTTNG_UST_REGISTER_DONE			_UST_CMD(0x44)
+
+/* Session FD commands */
+#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 commands */
+#define LTTNG_UST_STREAM			_UST_CMD(0x60)
+#define LTTNG_UST_EVENT			\
+	_UST_CMDW(0x61, struct lttng_ust_event)
+
+/* Event and Channel FD commands */
+#define LTTNG_UST_CONTEXT			\
+	_UST_CMDW(0x70, struct lttng_ust_context)
+
+/* Event, Channel and Session commands */
+#define LTTNG_UST_ENABLE			_UST_CMD(0x80)
+#define LTTNG_UST_DISABLE			_UST_CMD(0x81)
+
+#define LTTNG_UST_ROOT_HANDLE	0
+
+struct obj;
+
+struct objd_ops {
+	long (*cmd)(int objd, unsigned int cmd, unsigned long arg);
+	int (*release)(int objd);
+};
+
+/* Create root handle. Always ID 0. */
+int lttng_abi_create_root_handle(void);
+
+const struct objd_ops *objd_ops(int id);
+int objd_unref(int id);
+
+void lttng_ust_abi_exit(void);
+void ltt_events_exit(void);
+
+#endif /* _LTTNG_UST_ABI_H */