* Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
*
* This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License as published by the
- * Free Software Foundation; only version 2.1 of the License.
+ * under the terms of the GNU Lesser General Public License, version 2.1 only,
+ * as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
/*
* Event symbol length. Copied from LTTng kernel ABI.
*/
-#define LTTNG_SYMBOL_NAME_LEN 256
+#define LTTNG_SYMBOL_NAME_LEN 256
/*
* Every lttng_event_* structure both apply to kernel event and user-space
* Loglevel information.
*/
enum lttng_loglevel_type {
- LTTNG_EVENT_LOGLEVEL = 0,
- LTTNG_EVENT_LOGLEVEL_ONLY = 1,
+ LTTNG_EVENT_LOGLEVEL_ALL = 0,
+ LTTNG_EVENT_LOGLEVEL_RANGE = 1,
+ LTTNG_EVENT_LOGLEVEL_SINGLE = 2,
+};
+
+/*
+ * Available loglevels.
+ */
+enum lttng_loglevel {
+ LTTNG_LOGLEVEL_EMERG = 0,
+ LTTNG_LOGLEVEL_ALERT = 1,
+ LTTNG_LOGLEVEL_CRIT = 2,
+ LTTNG_LOGLEVEL_ERR = 3,
+ LTTNG_LOGLEVEL_WARNING = 4,
+ LTTNG_LOGLEVEL_NOTICE = 5,
+ LTTNG_LOGLEVEL_INFO = 6,
+ LTTNG_LOGLEVEL_DEBUG_SYSTEM = 7,
+ LTTNG_LOGLEVEL_DEBUG_PROGRAM = 8,
+ LTTNG_LOGLEVEL_DEBUG_PROCESS = 9,
+ LTTNG_LOGLEVEL_DEBUG_MODULE = 10,
+ LTTNG_LOGLEVEL_DEBUG_UNIT = 11,
+ LTTNG_LOGLEVEL_DEBUG_FUNCTION = 12,
+ LTTNG_LOGLEVEL_DEBUG_LINE = 13,
+ LTTNG_LOGLEVEL_DEBUG = 14,
};
/*
LTTNG_CALIBRATE_FUNCTION = 0,
};
+#define LTTNG_DOMAIN_PADDING1 16
+#define LTTNG_DOMAIN_PADDING2 LTTNG_SYMBOL_NAME_LEN + 32
struct lttng_domain {
enum lttng_domain_type type;
+ char padding[LTTNG_DOMAIN_PADDING1];
+
union {
pid_t pid;
char exec_name[NAME_MAX];
+ char padding[LTTNG_DOMAIN_PADDING2];
} attr;
};
/* Perf counter attributes */
+#define LTTNG_PERF_EVENT_PADDING1 16
struct lttng_event_perf_counter_ctx {
uint32_t type;
uint64_t config;
char name[LTTNG_SYMBOL_NAME_LEN];
+
+ char padding[LTTNG_PERF_EVENT_PADDING1];
};
/* Event/Channel context */
+#define LTTNG_EVENT_CONTEXT_PADDING1 16
+#define LTTNG_EVENT_CONTEXT_PADDING2 LTTNG_SYMBOL_NAME_LEN + 32
struct lttng_event_context {
enum lttng_event_context_type ctx;
+ char padding[LTTNG_EVENT_CONTEXT_PADDING1];
+
union {
struct lttng_event_perf_counter_ctx perf_counter;
+ char padding[LTTNG_EVENT_CONTEXT_PADDING2];
} u;
};
*
* Either addr is used or symbol_name and offset.
*/
+#define LTTNG_EVENT_PROBE_PADDING1 16
struct lttng_event_probe_attr {
uint64_t addr;
uint64_t offset;
char symbol_name[LTTNG_SYMBOL_NAME_LEN];
+
+ char padding[LTTNG_EVENT_PROBE_PADDING1];
};
/*
* Function tracer
*/
+#define LTTNG_EVENT_FUNCTION_PADDING1 16
struct lttng_event_function_attr {
char symbol_name[LTTNG_SYMBOL_NAME_LEN];
+
+ char padding[LTTNG_EVENT_FUNCTION_PADDING1];
};
/*
* Generic lttng event
*/
+#define LTTNG_EVENT_PADDING1 16
+#define LTTNG_EVENT_PADDING2 LTTNG_SYMBOL_NAME_LEN + 32
struct lttng_event {
enum lttng_event_type type;
char name[LTTNG_SYMBOL_NAME_LEN];
enum lttng_loglevel_type loglevel_type;
- char loglevel[LTTNG_SYMBOL_NAME_LEN];
- int64_t loglevel_value; /* for printing */
+ int loglevel;
uint32_t enabled;
pid_t pid;
+
+ char padding[LTTNG_EVENT_PADDING1];
+
/* Per event type configuration */
union {
struct lttng_event_probe_attr probe;
struct lttng_event_function_attr ftrace;
+
+ char padding[LTTNG_EVENT_PADDING2];
} attr;
};
/*
* Tracer channel attributes. For both kernel and user-space.
*/
+#define LTTNG_CHANNEL_ATTR_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32
struct lttng_channel_attr {
int overwrite; /* 1: overwrite, 0: discard */
uint64_t subbuf_size; /* bytes */
unsigned int switch_timer_interval; /* usec */
unsigned int read_timer_interval; /* usec */
enum lttng_event_output output; /* splice, mmap */
+
+ char padding[LTTNG_CHANNEL_ATTR_PADDING1];
};
/*
* Channel information structure. For both kernel and user-space.
*/
+#define LTTNG_CHANNEL_PADDING1 16
struct lttng_channel {
char name[LTTNG_SYMBOL_NAME_LEN];
uint32_t enabled;
struct lttng_channel_attr attr;
+
+ char padding[LTTNG_CHANNEL_PADDING1];
};
+#define LTTNG_CALIBRATE_PADDING1 16
struct lttng_calibrate {
enum lttng_calibrate_type type;
+
+ char padding[LTTNG_CALIBRATE_PADDING1];
};
/*
* daemon *to* the lttng client. It's basically a 'human' representation of
* tracing entities (here a session).
*/
+#define LTTNG_SESSION_PADDING1 16
struct lttng_session {
char name[NAME_MAX];
/* The path where traces are written */
char path[PATH_MAX];
uint32_t enabled; /* enabled/started: 1, disabled/stopped: 0 */
+
+ char padding[LTTNG_SESSION_PADDING1];
};
/*
* Handle used as a context for commands.
*/
+#define LTTNG_HANDLE_PADDING1 16
struct lttng_handle {
char session_name[NAME_MAX];
struct lttng_domain domain;
+
+ char padding[LTTNG_HANDLE_PADDING1];
};
/*
const char *channel_name);
/*
- * Create or enable a kernel event (or events) for a channel.
+ * Create or enable an event (or events) for a channel.
*
* If the event you are trying to enable does not exist, it will be created,
* else it is enabled.
struct lttng_event *ev, const char *channel_name);
/*
- * Create or enable a kernel channel.
+ * Create or enable a channel.
* The channel name cannot be NULL.
*/
extern int lttng_enable_channel(struct lttng_handle *handle,
struct lttng_channel *chan);
/*
- * Disable kernel event(s) of a channel and domain.
+ * Disable event(s) of a channel and domain.
*
* If event_name is NULL, all events are disabled.
* If channel_name is NULL, the default channel is used (channel0).
const char *name, const char *channel_name);
/*
- * Disable kernel channel.
+ * Disable channel.
*
* The channel name cannot be NULL.
*/
projects / lttng-tools.git / blobdiff