SoW-2020-0002: Trace Hit Counters: trigger error reporting integration

[lttng-tools.git] / src / common / lttng-kernel.h

diff --git a/src/common/lttng-kernel.h b/src/common/lttng-kernel.h
index 4008b50cf6d2999fbe987a8d81fd17d49eda95fb..cdf6f041bd4d563c52112019fbb4b767fe16d718 100644 (file)
--- a/src/common/lttng-kernel.h
+++ b/src/common/lttng-kernel.h
@@ -1,20 +1,10 @@
 /*
- * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
- *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *                      David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2011 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, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef _LTTNG_KERNEL_H
@@ -85,6 +75,7 @@ enum lttng_kernel_context_type {
        LTTNG_KERNEL_CONTEXT_VGID           = 34,
        LTTNG_KERNEL_CONTEXT_VEGID          = 35,
        LTTNG_KERNEL_CONTEXT_VSGID          = 36,
+       LTTNG_KERNEL_CONTEXT_TIME_NS        = 37,
 };
 
 /* Perf counter attributes */
@@ -160,6 +151,72 @@ struct lttng_kernel_event {
        } u;
 } LTTNG_PACKED;
 
+#define LTTNG_KERNEL_TRIGGER_PADDING1  16
+#define LTTNG_KERNEL_TRIGGER_PADDING2  LTTNG_KERNEL_SYM_NAME_LEN + 32
+struct lttng_kernel_trigger {
+       uint64_t id;
+       uint64_t error_counter_idx;
+       char name[LTTNG_KERNEL_SYM_NAME_LEN];   /* event name */
+       enum lttng_kernel_instrumentation instrumentation;
+       char padding[LTTNG_KERNEL_TRIGGER_PADDING1];
+
+       /* Per instrumentation type configuration */
+       union {
+               struct lttng_kernel_kretprobe kretprobe;
+               struct lttng_kernel_kprobe kprobe;
+               struct lttng_kernel_uprobe uprobe;
+               struct lttng_kernel_function ftrace;
+               char padding[LTTNG_KERNEL_TRIGGER_PADDING2];
+       } u;
+} LTTNG_PACKED;
+
+enum lttng_kernel_counter_arithmetic {
+       LTTNG_KERNEL_COUNTER_ARITHMETIC_MODULAR = 1,
+};
+
+enum lttng_kernel_counter_bitness {
+       LTTNG_KERNEL_COUNTER_BITNESS_32BITS = 1,
+       LTTNG_KERNEL_COUNTER_BITNESS_64BITS = 2,
+};
+
+struct lttng_kernel_counter_dimension {
+       uint64_t size;
+       uint64_t underflow_index;
+       uint64_t overflow_index;
+       uint8_t has_underflow;
+       uint8_t has_overflow;
+} LTTNG_PACKED;
+
+#define LTTNG_KERNEL_COUNTER_DIMENSION_MAX 8
+struct lttng_kernel_counter_conf {
+       uint32_t arithmetic;    /* enum lttng_kernel_counter_arithmetic */
+       uint32_t bitness;       /* enum lttng_kernel_counter_bitness */
+       uint32_t number_dimensions;
+       int64_t global_sum_step;
+       struct lttng_kernel_counter_dimension dimensions[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
+} LTTNG_PACKED;
+
+struct lttng_kernel_counter_value {
+       uint32_t number_dimensions;
+       uint64_t dimension_indexes[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
+       int64_t value;
+} LTTNG_PACKED;
+
+#define LTTNG_KERNEL_TRIGGER_NOTIFICATION_PADDING 32
+struct lttng_kernel_trigger_notification {
+       uint64_t id;
+       uint16_t capture_buf_size;
+       char padding[LTTNG_KERNEL_TRIGGER_NOTIFICATION_PADDING];
+} LTTNG_PACKED;
+
+#define LTTNG_KERNEL_CAPTURE_BYTECODE_MAX_LEN          65536
+struct lttng_kernel_capture_bytecode {
+       uint32_t len;
+       uint32_t reloc_offset;
+       uint64_t seqnum;
+       char data[0];
+} LTTNG_PACKED;
+
 struct lttng_kernel_tracer_version {
        uint32_t major;
        uint32_t minor;
@@ -213,4 +270,20 @@ struct lttng_kernel_session_creation_time {
        char iso8601[LTTNG_KERNEL_SESSION_CREATION_TIME_ISO8601_LEN];
 } LTTNG_PACKED;
 
+enum lttng_kernel_tracker_type {
+       LTTNG_KERNEL_TRACKER_UNKNOWN            = -1,
+
+       LTTNG_KERNEL_TRACKER_PID                = 0,
+       LTTNG_KERNEL_TRACKER_VPID               = 1,
+       LTTNG_KERNEL_TRACKER_UID                = 2,
+       LTTNG_KERNEL_TRACKER_VUID               = 3,
+       LTTNG_KERNEL_TRACKER_GID                = 4,
+       LTTNG_KERNEL_TRACKER_VGID               = 5,
+};
+
+struct lttng_kernel_tracker_args {
+       enum lttng_kernel_tracker_type type;
+       int32_t id;
+};
+
 #endif /* _LTTNG_KERNEL_H */