* Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
* David Goulet <david.goulet@polymtl.ca>
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; only version 2
- * of the License.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2 only,
+ * as published by the Free Software Foundation.
*
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _LTTNG_KERNEL_H
#define _LTTNG_KERNEL_H
#include <stdint.h>
+#include <common/macros.h>
-#define LTTNG_SYM_NAME_LEN 256
+#define LTTNG_KERNEL_SYM_NAME_LEN 256
/*
* LTTng DebugFS ABI structures.
enum lttng_kernel_context_type {
LTTNG_KERNEL_CONTEXT_PID = 0,
- LTTNG_KERNEL_CONTEXT_PERF_COUNTER = 1,
- LTTNG_KERNEL_CONTEXT_COMM = 2,
+ LTTNG_KERNEL_CONTEXT_PERF_CPU_COUNTER = 1,
+ LTTNG_KERNEL_CONTEXT_PROCNAME = 2,
LTTNG_KERNEL_CONTEXT_PRIO = 3,
LTTNG_KERNEL_CONTEXT_NICE = 4,
LTTNG_KERNEL_CONTEXT_VPID = 5,
LTTNG_KERNEL_CONTEXT_VTID = 7,
LTTNG_KERNEL_CONTEXT_PPID = 8,
LTTNG_KERNEL_CONTEXT_VPPID = 9,
+ LTTNG_KERNEL_CONTEXT_HOSTNAME = 10,
+ LTTNG_KERNEL_CONTEXT_CPU_ID = 11,
+ LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE = 12,
+ LTTNG_KERNEL_CONTEXT_PREEMPTIBLE = 13,
+ LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE = 14,
+ LTTNG_KERNEL_CONTEXT_MIGRATABLE = 15,
};
/* Perf counter attributes */
struct lttng_kernel_perf_counter_ctx {
uint32_t type;
uint64_t config;
- char name[LTTNG_SYM_NAME_LEN];
-};
+ char name[LTTNG_KERNEL_SYM_NAME_LEN];
+} LTTNG_PACKED;
/* Event/Channel context */
+#define LTTNG_KERNEL_CONTEXT_PADDING1 16
+#define LTTNG_KERNEL_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_context {
enum lttng_kernel_context_type ctx;
+ char padding[LTTNG_KERNEL_CONTEXT_PADDING1];
+
union {
struct lttng_kernel_perf_counter_ctx perf_counter;
+ char padding[LTTNG_KERNEL_CONTEXT_PADDING2];
} u;
-};
+} LTTNG_PACKED;
struct lttng_kernel_kretprobe {
uint64_t addr;
uint64_t offset;
- char symbol_name[LTTNG_SYM_NAME_LEN];
-};
+ char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
+} LTTNG_PACKED;
/*
* Either addr is used, or symbol_name and offset.
uint64_t addr;
uint64_t offset;
- char symbol_name[LTTNG_SYM_NAME_LEN];
-};
+ char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
+} LTTNG_PACKED;
/* Function tracer */
struct lttng_kernel_function {
- char symbol_name[LTTNG_SYM_NAME_LEN];
-};
+ char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
+} LTTNG_PACKED;
+#define LTTNG_KERNEL_EVENT_PADDING1 16
+#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_event {
- char name[LTTNG_SYM_NAME_LEN];
+ char name[LTTNG_KERNEL_SYM_NAME_LEN];
enum lttng_kernel_instrumentation instrumentation;
+ char padding[LTTNG_KERNEL_EVENT_PADDING1];
+
/* Per instrumentation type configuration */
union {
struct lttng_kernel_kretprobe kretprobe;
struct lttng_kernel_kprobe kprobe;
struct lttng_kernel_function ftrace;
+ char padding[LTTNG_KERNEL_EVENT_PADDING2];
} u;
-};
+} LTTNG_PACKED;
struct lttng_kernel_tracer_version {
- uint32_t version;
+ uint32_t major;
+ uint32_t minor;
uint32_t patchlevel;
- uint32_t sublevel;
-};
+} LTTNG_PACKED;
+
+struct lttng_kernel_tracer_abi_version {
+ uint32_t major;
+ uint32_t minor;
+} LTTNG_PACKED;
enum lttng_kernel_calibrate_type {
LTTNG_KERNEL_CALIBRATE_KRETPROBE,
struct lttng_kernel_calibrate {
enum lttng_kernel_calibrate_type type; /* type (input) */
-};
+} LTTNG_PACKED;
+
+struct lttng_kernel_syscall_mask {
+ uint32_t len; /* in bits */
+ char mask[];
+} LTTNG_PACKED;
+
+/*
+ * kernel channel
+ */
+#define LTTNG_KERNEL_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32
+struct lttng_kernel_channel {
+ uint64_t subbuf_size; /* bytes */
+ uint64_t num_subbuf; /* power of 2 */
+ unsigned int switch_timer_interval; /* usec */
+ unsigned int read_timer_interval; /* usec */
+ enum lttng_event_output output; /* splice, mmap */
+
+ int overwrite; /* 1: overwrite, 0: discard */
+ char padding[LTTNG_KERNEL_CHANNEL_PADDING1];
+} LTTNG_PACKED;
+
+#define KERNEL_FILTER_BYTECODE_MAX_LEN 65536
+struct lttng_kernel_filter_bytecode {
+ uint32_t len;
+ uint32_t reloc_offset;
+ uint64_t seqnum;
+ char data[0];
+} LTTNG_PACKED;
#endif /* _LTTNG_KERNEL_H */
projects / lttng-tools.git / blobdiff