#ifndef _LTTNG_KERNEL_H
#define _LTTNG_KERNEL_H
-#include <stdint.h>
+#include "lttng-share.h"
-typedef uint64_t u64;
+#define LTTNG_SYM_NAME_LEN 128
+
+enum lttng_kernel_instrumentation {
+ LTTNG_KERNEL_TRACEPOINTS,
+ LTTNG_KERNEL_KPROBES,
+ LTTNG_KERNEL_FUNCTION_TRACER,
+};
/*
* LTTng DebugFS ABI structures.
*/
-enum lttng_instrum_type {
- INSTRUM_TRACEPOINTS,
+
+struct lttng_kernel_channel {
+ int overwrite; /* 1: overwrite, 0: discard */
+ uint64_t subbuf_size; /* in bytes */
+ uint64_t num_subbuf;
+ unsigned int switch_timer_interval; /* usecs */
+ unsigned int read_timer_interval; /* usecs */
+};
+
+struct lttng_kernel_tracepoint {
+};
+
+/*
+ * Either addr is used, or symbol_name and offset.
+ */
+struct lttng_kernel_kprobe {
+ uint64_t addr;
+
+ uint64_t offset;
+ char symbol_name[LTTNG_SYM_NAME_LEN];
+};
+
+struct lttng_kernel_function_tracer {
+ char symbol_name[LTTNG_SYM_NAME_LEN];
};
-struct lttng_channel {
- int overwrite; /* 1: overwrite, 0: discard */
- u64 subbuf_size;
- u64 num_subbuf;
- unsigned int switch_timer_interval;
- unsigned int read_timer_interval;
+struct lttng_kernel_event {
+ char name[LTTNG_SYM_NAME_LEN]; /* event name */
+ enum lttng_kernel_instrumentation instrumentation;
+ /* Per instrumentation type configuration */
+ union {
+ struct lttng_kernel_tracepoint tracepoint;
+ struct lttng_kernel_kprobe kprobe;
+ struct lttng_kernel_function_tracer ftrace;
+ } u;
};
-struct lttng_event {
- enum lttng_instrum_type itype;
- char name[];
+struct lttng_kernel_tracer_version {
+ uint32_t version;
+ uint32_t patchlevel;
+ uint32_t sublevel;
};
#endif /* _LTTNG_KERNEL_H */