/*
* lttng-abi.h
*
- * Copyright 2010 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
* LTTng ABI header
*
- * Dual LGPL v2.1/GPL v2 license.
+ * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * 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.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/fs.h>
/*
* LTTng DebugFS ABI structures.
*/
+#define LTTNG_KERNEL_CHANNEL_PADDING LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_channel {
int overwrite; /* 1: overwrite, 0: discard */
uint64_t subbuf_size; /* in bytes */
unsigned int switch_timer_interval; /* usecs */
unsigned int read_timer_interval; /* usecs */
enum lttng_kernel_output output; /* splice, mmap */
+ char padding[LTTNG_KERNEL_CHANNEL_PADDING];
};
struct lttng_kernel_kretprobe {
/*
* For syscall tracing, name = '\0' means "enable all".
*/
+#define LTTNG_KERNEL_EVENT_PADDING1 16
+#define LTTNG_KERNEL_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32
struct lttng_kernel_event {
char name[LTTNG_KERNEL_SYM_NAME_LEN]; /* event name */
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_tracer ftrace;
+ char padding[LTTNG_KERNEL_EVENT_PADDING2];
} u;
};
struct lttng_kernel_tracer_version {
- uint32_t version;
+ uint32_t major;
+ uint32_t minor;
uint32_t patchlevel;
- uint32_t sublevel;
};
enum lttng_kernel_calibrate_type {
char name[LTTNG_KERNEL_SYM_NAME_LEN];
};
+#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;
};