X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;ds=sidebyside;f=ltt-debugfs-abi.h;h=85e689c88705928579383d4ad9ff1fd4b5f91ac3;hb=9e245ead77b8c671988d3a55440676629c01b648;hp=3a2af561294582caf1c00872744b11ebddd37551;hpb=5dbbdb433f181be8b3c30e8cd03191b5408614ca;p=lttng-modules.git

diff --git a/ltt-debugfs-abi.h b/ltt-debugfs-abi.h
index 3a2af561..85e689c8 100644
--- a/ltt-debugfs-abi.h
+++ b/ltt-debugfs-abi.h
@@ -11,33 +11,69 @@
 
 #include <linux/fs.h>
 
-enum instrum_type {
-	INSTRUM_TRACEPOINTS,
+#define LTTNG_SYM_NAME_LEN	128
+
+enum lttng_kernel_instrumentation {
+	LTTNG_KERNEL_TRACEPOINTS,
+	LTTNG_KERNEL_KPROBES,
+	LTTNG_KERNEL_FUNCTION_TRACER,
 };
 
 /*
  * LTTng DebugFS ABI structures.
  */
 
-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_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 */
+};
+
+/*
+ * 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_kernel_event {
+	enum lttng_kernel_instrumentation instrumentation;
+	/* Per instrumentation type configuration */
+	union {
+		struct lttng_kernel_kprobe kprobe;
+		struct lttng_kernel_function_tracer ftrace;
+	} u;
+	char name[];	/* event name */
 };
 
-struct lttng_event {
-	enum instrum_type itype;
-	char name[];
+struct lttng_kernel_tracer_version {
+	uint32_t version;
+	uint32_t patchlevel;
+	uint32_t sublevel;
 };
 
-#define LTTNG_SESSION		_IO(0xF6, 0x40)
-#define LTTNG_SESSION_START	_IO(0xF6, 0x41)
-#define LTTNG_SESSION_STOP	_IO(0xF6, 0x42)
-#define LTTNG_CHANNEL		_IOW(0xF6, 0x43, struct lttng_channel)
-#define LTTNG_STREAM		_IO(0xF6, 0x44)
-#define LTTNG_EVENT		_IOW(0xF6, 0x45, struct lttng_event)
-#define LTTNG_METADATA		_IOW(0xF6, 0x46, struct lttng_channel)
+#define LTTNG_KERNEL_SESSION		_IO(0xF6, 0x40)
+#define LTTNG_KERNEL_SESSION_START	_IO(0xF6, 0x41)
+#define LTTNG_KERNEL_SESSION_STOP	_IO(0xF6, 0x42)
+#define LTTNG_KERNEL_CHANNEL		\
+	_IOW(0xF6, 0x43, struct lttng_kernel_channel)
+#define LTTNG_KERNEL_STREAM		_IO(0xF6, 0x44)
+#define LTTNG_KERNEL_EVENT		\
+	_IOW(0xF6, 0x45, struct lttng_kernel_event)
+#define LTTNG_KERNEL_METADATA		\
+	_IOW(0xF6, 0x46, struct lttng_kernel_channel)
+#define LTTNG_KERNEL_KPROBE		\
+	_IOW(0xF6, 0x47, struct lttng_kernel_kprobe)
+#define LTTNG_KERNEL_TRACER_VERSION	\
+	_IOR(0xF6, 0x48, struct lttng_kernel_tracer_version)
 
 #endif /* _LTT_DEBUGFS_ABI_H */