Fix ring_buffer_frontend.c: missing include lttng-tracer-core.h

[lttng-modules.git] / lttng-abi.h

diff --git a/lttng-abi.h b/lttng-abi.h
index cb4898e30b29e75f6886baae978be91f6fbff93f..cf72b12b524bdabcaff018079e730fc8e902c6ac 100644 (file)
--- a/lttng-abi.h
+++ b/lttng-abi.h
@@ -4,16 +4,28 @@
 /*
  * lttng-abi.h
  *
- * Copyright 2010 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * LTTng ABI header
  *
- * LTTng debugfs ABI header
+ * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
- * Dual LGPL v2.1/GPL v2 license.
+ * 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>
 
-#define LTTNG_SYM_NAME_LEN     256
+#define LTTNG_KERNEL_SYM_NAME_LEN      256
 
 enum lttng_kernel_instrumentation {
        LTTNG_KERNEL_TRACEPOINT = 0,
@@ -35,7 +47,7 @@ enum lttng_kernel_output {
 /*
  * 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 */
@@ -43,13 +55,14 @@ struct lttng_kernel_channel {
        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 {
        uint64_t addr;
 
        uint64_t offset;
-       char symbol_name[LTTNG_SYM_NAME_LEN];
+       char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
 };
 
 /*
@@ -59,31 +72,36 @@ struct lttng_kernel_kprobe {
        uint64_t addr;
 
        uint64_t offset;
-       char symbol_name[LTTNG_SYM_NAME_LEN];
+       char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
 };
 
 struct lttng_kernel_function_tracer {
-       char symbol_name[LTTNG_SYM_NAME_LEN];
+       char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
 };
 
 /*
  * 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_SYM_NAME_LEN];  /* event name */
+       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 {
@@ -105,18 +123,24 @@ enum lttng_kernel_context_type {
        LTTNG_KERNEL_CONTEXT_VTID               = 7,
        LTTNG_KERNEL_CONTEXT_PPID               = 8,
        LTTNG_KERNEL_CONTEXT_VPPID              = 9,
+       LTTNG_KERNEL_CONTEXT_HOSTNAME           = 10,
 };
 
 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];
 };
 
+#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;
 };