*
* Copyright 2010 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * LTTng debugfs ABI header
+ * LTTng ABI header
*
* Dual LGPL v2.1/GPL v2 license.
*/
#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,
/*
* 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 {
uint64_t addr;
uint64_t offset;
- char symbol_name[LTTNG_SYM_NAME_LEN];
+ char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
};
/*
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 {
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;
};